internal,static: update esbuild config
- Specified target output target and platform for the browser
environment.
- Isolated modules is recommended for esbuild to prevent the use of
features which could cause mis-compilation in environments like esbuild
where each file is compiled independently without tracing type references
across files.
Change-Id: I72aad4969a8e132ec22b234496e9a323cbf35830
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/344673
Trust: Jamal Carvalho <jamal@golang.org>
Run-TryBot: Jamal Carvalho <jamal@golang.org>
TryBot-Result: kokoro <noreply+kokoro@google.com>
Reviewed-by: Julie Qiu <julie@golang.org>
diff --git a/internal/static/static.go b/internal/static/static.go
index 9068561..9fd3fdf 100644
--- a/internal/static/static.go
+++ b/internal/static/static.go
@@ -46,6 +46,8 @@
Bundle: config.Bundle,
Outdir: config.EntryPoint,
Write: true,
+ Platform: api.PlatformBrowser,
+ Format: api.FormatESModule,
OutExtensions: map[string]string{".css": ".min.css"},
External: []string{"*.svg"},
Banner: map[string]string{"css": "/*!\n" +
diff --git a/static/frontend/fetch/fetch.js b/static/frontend/fetch/fetch.js
index 8435fa8..556c4b0 100644
--- a/static/frontend/fetch/fetch.js
+++ b/static/frontend/fetch/fetch.js
@@ -1,4 +1,4 @@
-(()=>{var s=document.querySelector(".js-fetchButton");s&&s.addEventListener("click",e=>{e.preventDefault(),i()});async function i(){var a;let e=document.querySelector(".js-fetchMessage"),t=document.querySelector(".js-fetchMessageSecondary"),o=document.querySelector(".js-fetchButton"),n=document.querySelector(".js-fetchLoading");if(!(e&&t&&o&&n))return;e.textContent=`Fetching ${e.dataset.path}`,t.textContent="Feel free to navigate away and check back later, we\u2019ll keep working on it!",o.style.display="none",n.style.display="block";let c=await fetch(`/fetch${window.location.pathname}`,{method:"POST"});if(c.ok){window.location.reload();return}let r=await c.text();n.style.display="none",t.textContent="";let l=new DOMParser().parseFromString(r,"text/html");e.innerHTML=(a=l.documentElement.textContent)!=null?a:""}})();
+var s=document.querySelector(".js-fetchButton");s&&s.addEventListener("click",e=>{e.preventDefault(),i()});async function i(){var a;let e=document.querySelector(".js-fetchMessage"),t=document.querySelector(".js-fetchMessageSecondary"),o=document.querySelector(".js-fetchButton"),n=document.querySelector(".js-fetchLoading");if(!(e&&t&&o&&n))return;e.textContent=`Fetching ${e.dataset.path}`,t.textContent="Feel free to navigate away and check back later, we\u2019ll keep working on it!",o.style.display="none",n.style.display="block";let c=await fetch(`/fetch${window.location.pathname}`,{method:"POST"});if(c.ok){window.location.reload();return}let r=await c.text();n.style.display="none",t.textContent="";let l=new DOMParser().parseFromString(r,"text/html");e.innerHTML=(a=l.documentElement.textContent)!=null?a:""}
/*!
* @license
* Copyright 2020 The Go Authors. All rights reserved.
diff --git a/static/frontend/fetch/fetch.js.map b/static/frontend/fetch/fetch.js.map
index 49c5927..2d4f358 100644
--- a/static/frontend/fetch/fetch.js.map
+++ b/static/frontend/fetch/fetch.js.map
@@ -1,7 +1,7 @@
{
"version": 3,
"sources": ["fetch.ts"],
- "sourcesContent": ["/*!\n * @license\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nconst fetchButton = document.querySelector('.js-fetchButton');\nif (fetchButton) {\n fetchButton.addEventListener('click', e => {\n e.preventDefault();\n fetchPath();\n });\n}\n\nasync function fetchPath() {\n const fetchMessageEl = document.querySelector<HTMLHeadingElement>('.js-fetchMessage');\n const fetchMessageSecondary = document.querySelector<HTMLParagraphElement>(\n '.js-fetchMessageSecondary'\n );\n const fetchButton = document.querySelector<HTMLButtonElement>('.js-fetchButton');\n const fetchLoading = document.querySelector<HTMLDivElement>('.js-fetchLoading');\n if (!(fetchMessageEl && fetchMessageSecondary && fetchButton && fetchLoading)) {\n return;\n }\n fetchMessageEl.textContent = `Fetching ${fetchMessageEl.dataset.path}`;\n fetchMessageSecondary.textContent =\n 'Feel free to navigate away and check back later, we\u2019ll keep working on it!';\n fetchButton.style.display = 'none';\n fetchLoading.style.display = 'block';\n\n const response = await fetch(`/fetch${window.location.pathname}`, { method: 'POST' });\n if (response.ok) {\n window.location.reload();\n return;\n }\n const responseText = await response.text();\n fetchLoading.style.display = 'none';\n fetchMessageSecondary.textContent = '';\n const responseTextParsedDOM = new DOMParser().parseFromString(responseText, 'text/html');\n fetchMessageEl.innerHTML = responseTextParsedDOM.documentElement.textContent ?? '';\n}\n"],
- "mappings": "MAAA,AAOA,GAAM,GAAc,SAAS,cAAc,mBAC3C,AAAI,GACF,EAAY,iBAAiB,QAAS,GAAK,CACzC,EAAE,iBACF,MAIJ,kBAA2B,CAf3B,MAgBE,GAAM,GAAiB,SAAS,cAAkC,oBAC5D,EAAwB,SAAS,cACrC,6BAEI,EAAc,SAAS,cAAiC,mBACxD,EAAe,SAAS,cAA8B,oBAC5D,GAAI,CAAE,IAAkB,GAAyB,GAAe,GAC9D,OAEF,EAAe,YAAc,YAAY,EAAe,QAAQ,OAChE,EAAsB,YACpB,kFACF,EAAY,MAAM,QAAU,OAC5B,EAAa,MAAM,QAAU,QAE7B,GAAM,GAAW,KAAM,OAAM,SAAS,OAAO,SAAS,WAAY,CAAE,OAAQ,SAC5E,GAAI,EAAS,GAAI,CACf,OAAO,SAAS,SAChB,OAEF,GAAM,GAAe,KAAM,GAAS,OACpC,EAAa,MAAM,QAAU,OAC7B,EAAsB,YAAc,GACpC,GAAM,GAAwB,GAAI,aAAY,gBAAgB,EAAc,aAC5E,EAAe,UAAY,KAAsB,gBAAgB,cAAtC,OAAqD",
+ "sourcesContent": ["/*!\n * @license\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nconst fetchButton = document.querySelector('.js-fetchButton');\nif (fetchButton) {\n fetchButton.addEventListener('click', e => {\n e.preventDefault();\n fetchPath();\n });\n}\n\nasync function fetchPath() {\n const fetchMessageEl = document.querySelector<HTMLHeadingElement>('.js-fetchMessage');\n const fetchMessageSecondary = document.querySelector<HTMLParagraphElement>(\n '.js-fetchMessageSecondary'\n );\n const fetchButton = document.querySelector<HTMLButtonElement>('.js-fetchButton');\n const fetchLoading = document.querySelector<HTMLDivElement>('.js-fetchLoading');\n if (!(fetchMessageEl && fetchMessageSecondary && fetchButton && fetchLoading)) {\n return;\n }\n fetchMessageEl.textContent = `Fetching ${fetchMessageEl.dataset.path}`;\n fetchMessageSecondary.textContent =\n 'Feel free to navigate away and check back later, we\u2019ll keep working on it!';\n fetchButton.style.display = 'none';\n fetchLoading.style.display = 'block';\n\n const response = await fetch(`/fetch${window.location.pathname}`, { method: 'POST' });\n if (response.ok) {\n window.location.reload();\n return;\n }\n const responseText = await response.text();\n fetchLoading.style.display = 'none';\n fetchMessageSecondary.textContent = '';\n const responseTextParsedDOM = new DOMParser().parseFromString(responseText, 'text/html');\n fetchMessageEl.innerHTML = responseTextParsedDOM.documentElement.textContent ?? '';\n}\n\nexport {};\n"],
+ "mappings": "AAAA,AAOA,GAAM,GAAc,SAAS,cAAc,mBAC3C,AAAI,GACF,EAAY,iBAAiB,QAAS,GAAK,CACzC,EAAE,iBACF,MAIJ,kBAA2B,CAf3B,MAgBE,GAAM,GAAiB,SAAS,cAAkC,oBAC5D,EAAwB,SAAS,cACrC,6BAEI,EAAc,SAAS,cAAiC,mBACxD,EAAe,SAAS,cAA8B,oBAC5D,GAAI,CAAE,IAAkB,GAAyB,GAAe,GAC9D,OAEF,EAAe,YAAc,YAAY,EAAe,QAAQ,OAChE,EAAsB,YACpB,kFACF,EAAY,MAAM,QAAU,OAC5B,EAAa,MAAM,QAAU,QAE7B,GAAM,GAAW,KAAM,OAAM,SAAS,OAAO,SAAS,WAAY,CAAE,OAAQ,SAC5E,GAAI,EAAS,GAAI,CACf,OAAO,SAAS,SAChB,OAEF,GAAM,GAAe,KAAM,GAAS,OACpC,EAAa,MAAM,QAAU,OAC7B,EAAsB,YAAc,GACpC,GAAM,GAAwB,GAAI,aAAY,gBAAgB,EAAc,aAC5E,EAAe,UAAY,KAAsB,gBAAgB,cAAtC,OAAqD",
"names": []
}
diff --git a/static/frontend/fetch/fetch.ts b/static/frontend/fetch/fetch.ts
index fc9e93b..d4100a6 100644
--- a/static/frontend/fetch/fetch.ts
+++ b/static/frontend/fetch/fetch.ts
@@ -40,3 +40,5 @@
const responseTextParsedDOM = new DOMParser().parseFromString(responseText, 'text/html');
fetchMessageEl.innerHTML = responseTextParsedDOM.documentElement.textContent ?? '';
}
+
+export {};
diff --git a/static/frontend/frontend.js b/static/frontend/frontend.js
index f0f4d8a..4c73947 100644
--- a/static/frontend/frontend.js
+++ b/static/frontend/frontend.js
@@ -1,4 +1,4 @@
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/*!
* @license
* Copyright 2019-2020 The Go Authors. All rights reserved.
diff --git a/static/frontend/frontend.js.map b/static/frontend/frontend.js.map
index 59d2bde..151d1ff 100644
--- a/static/frontend/frontend.js.map
+++ b/static/frontend/frontend.js.map
@@ -1,7 +1,7 @@
{
"version": 3,
"sources": ["../../third_party/dialog-polyfill/dialog-polyfill.esm.js", "../shared/header/header.ts", "../shared/clipboard/clipboard.ts", "../shared/tooltip/tooltip.ts", "../shared/outline/select.ts", "../shared/modal/modal.ts", "../shared/analytics/analytics.ts", "../shared/keyboard/keyboard.ts", "../shared/shared.ts", "frontend.ts"],
- "sourcesContent": ["// nb. This is for IE10 and lower _only_.\nvar supportCustomEvent = window.CustomEvent;\nif (!supportCustomEvent || typeof supportCustomEvent === 'object') {\n supportCustomEvent = function CustomEvent(event, x) {\n x = x || {};\n var ev = document.createEvent('CustomEvent');\n ev.initCustomEvent(event, !!x.bubbles, !!x.cancelable, x.detail || null);\n return ev;\n };\n supportCustomEvent.prototype = window.Event.prototype;\n}\n\n/**\n * @param {Element} el to check for stacking context\n * @return {boolean} whether this el or its parents creates a stacking context\n */\nfunction createsStackingContext(el) {\n while (el && el !== document.body) {\n var s = window.getComputedStyle(el);\n var invalid = function(k, ok) {\n return !(s[k] === undefined || s[k] === ok);\n };\n\n if (s.opacity < 1 ||\n invalid('zIndex', 'auto') ||\n invalid('transform', 'none') ||\n invalid('mixBlendMode', 'normal') ||\n invalid('filter', 'none') ||\n invalid('perspective', 'none') ||\n s['isolation'] === 'isolate' ||\n s.position === 'fixed' ||\n s.webkitOverflowScrolling === 'touch') {\n return true;\n }\n el = el.parentElement;\n }\n return false;\n}\n\n/**\n * Finds the nearest <dialog> from the passed element.\n *\n * @param {Element} el to search from\n * @return {HTMLDialogElement} dialog found\n */\nfunction findNearestDialog(el) {\n while (el) {\n if (el.localName === 'dialog') {\n return /** @type {HTMLDialogElement} */ (el);\n }\n el = el.parentElement;\n }\n return null;\n}\n\n/**\n * Blur the specified element, as long as it's not the HTML body element.\n * This works around an IE9/10 bug - blurring the body causes Windows to\n * blur the whole application.\n *\n * @param {Element} el to blur\n */\nfunction safeBlur(el) {\n if (el && el.blur && el !== document.body) {\n el.blur();\n }\n}\n\n/**\n * @param {!NodeList} nodeList to search\n * @param {Node} node to find\n * @return {boolean} whether node is inside nodeList\n */\nfunction inNodeList(nodeList, node) {\n for (var i = 0; i < nodeList.length; ++i) {\n if (nodeList[i] === node) {\n return true;\n }\n }\n return false;\n}\n\n/**\n * @param {HTMLFormElement} el to check\n * @return {boolean} whether this form has method=\"dialog\"\n */\nfunction isFormMethodDialog(el) {\n if (!el || !el.hasAttribute('method')) {\n return false;\n }\n return el.getAttribute('method').toLowerCase() === 'dialog';\n}\n\n/**\n * @param {!HTMLDialogElement} dialog to upgrade\n * @constructor\n */\nfunction dialogPolyfillInfo(dialog) {\n this.dialog_ = dialog;\n this.replacedStyleTop_ = false;\n this.openAsModal_ = false;\n\n // Set a11y role. Browsers that support dialog implicitly know this already.\n if (!dialog.hasAttribute('role')) {\n dialog.setAttribute('role', 'dialog');\n }\n\n dialog.show = this.show.bind(this);\n dialog.showModal = this.showModal.bind(this);\n dialog.close = this.close.bind(this);\n\n if (!('returnValue' in dialog)) {\n dialog.returnValue = '';\n }\n\n if ('MutationObserver' in window) {\n var mo = new MutationObserver(this.maybeHideModal.bind(this));\n mo.observe(dialog, {attributes: true, attributeFilter: ['open']});\n } else {\n // IE10 and below support. Note that DOMNodeRemoved etc fire _before_ removal. They also\n // seem to fire even if the element was removed as part of a parent removal. Use the removed\n // events to force downgrade (useful if removed/immediately added).\n var removed = false;\n var cb = function() {\n removed ? this.downgradeModal() : this.maybeHideModal();\n removed = false;\n }.bind(this);\n var timeout;\n var delayModel = function(ev) {\n if (ev.target !== dialog) { return; } // not for a child element\n var cand = 'DOMNodeRemoved';\n removed |= (ev.type.substr(0, cand.length) === cand);\n window.clearTimeout(timeout);\n timeout = window.setTimeout(cb, 0);\n };\n ['DOMAttrModified', 'DOMNodeRemoved', 'DOMNodeRemovedFromDocument'].forEach(function(name) {\n dialog.addEventListener(name, delayModel);\n });\n }\n // Note that the DOM is observed inside DialogManager while any dialog\n // is being displayed as a modal, to catch modal removal from the DOM.\n\n Object.defineProperty(dialog, 'open', {\n set: this.setOpen.bind(this),\n get: dialog.hasAttribute.bind(dialog, 'open')\n });\n\n this.backdrop_ = document.createElement('div');\n this.backdrop_.className = 'backdrop';\n this.backdrop_.addEventListener('click', this.backdropClick_.bind(this));\n}\n\ndialogPolyfillInfo.prototype = {\n\n get dialog() {\n return this.dialog_;\n },\n\n /**\n * Maybe remove this dialog from the modal top layer. This is called when\n * a modal dialog may no longer be tenable, e.g., when the dialog is no\n * longer open or is no longer part of the DOM.\n */\n maybeHideModal: function() {\n if (this.dialog_.hasAttribute('open') && document.body.contains(this.dialog_)) { return; }\n this.downgradeModal();\n },\n\n /**\n * Remove this dialog from the modal top layer, leaving it as a non-modal.\n */\n downgradeModal: function() {\n if (!this.openAsModal_) { return; }\n this.openAsModal_ = false;\n this.dialog_.style.zIndex = '';\n\n // This won't match the native <dialog> exactly because if the user set top on a centered\n // polyfill dialog, that top gets thrown away when the dialog is closed. Not sure it's\n // possible to polyfill this perfectly.\n if (this.replacedStyleTop_) {\n this.dialog_.style.top = '';\n this.replacedStyleTop_ = false;\n }\n\n // Clear the backdrop and remove from the manager.\n this.backdrop_.parentNode && this.backdrop_.parentNode.removeChild(this.backdrop_);\n dialogPolyfill.dm.removeDialog(this);\n },\n\n /**\n * @param {boolean} value whether to open or close this dialog\n */\n setOpen: function(value) {\n if (value) {\n this.dialog_.hasAttribute('open') || this.dialog_.setAttribute('open', '');\n } else {\n this.dialog_.removeAttribute('open');\n this.maybeHideModal(); // nb. redundant with MutationObserver\n }\n },\n\n /**\n * Handles clicks on the fake .backdrop element, redirecting them as if\n * they were on the dialog itself.\n *\n * @param {!Event} e to redirect\n */\n backdropClick_: function(e) {\n if (!this.dialog_.hasAttribute('tabindex')) {\n // Clicking on the backdrop should move the implicit cursor, even if dialog cannot be\n // focused. Create a fake thing to focus on. If the backdrop was _before_ the dialog, this\n // would not be needed - clicks would move the implicit cursor there.\n var fake = document.createElement('div');\n this.dialog_.insertBefore(fake, this.dialog_.firstChild);\n fake.tabIndex = -1;\n fake.focus();\n this.dialog_.removeChild(fake);\n } else {\n this.dialog_.focus();\n }\n\n var redirectedEvent = document.createEvent('MouseEvents');\n redirectedEvent.initMouseEvent(e.type, e.bubbles, e.cancelable, window,\n e.detail, e.screenX, e.screenY, e.clientX, e.clientY, e.ctrlKey,\n e.altKey, e.shiftKey, e.metaKey, e.button, e.relatedTarget);\n this.dialog_.dispatchEvent(redirectedEvent);\n e.stopPropagation();\n },\n\n /**\n * Focuses on the first focusable element within the dialog. This will always blur the current\n * focus, even if nothing within the dialog is found.\n */\n focus_: function() {\n // Find element with `autofocus` attribute, or fall back to the first form/tabindex control.\n var target = this.dialog_.querySelector('[autofocus]:not([disabled])');\n if (!target && this.dialog_.tabIndex >= 0) {\n target = this.dialog_;\n }\n if (!target) {\n // Note that this is 'any focusable area'. This list is probably not exhaustive, but the\n // alternative involves stepping through and trying to focus everything.\n var opts = ['button', 'input', 'keygen', 'select', 'textarea'];\n var query = opts.map(function(el) {\n return el + ':not([disabled])';\n });\n // TODO(samthor): tabindex values that are not numeric are not focusable.\n query.push('[tabindex]:not([disabled]):not([tabindex=\"\"])'); // tabindex != \"\", not disabled\n target = this.dialog_.querySelector(query.join(', '));\n }\n safeBlur(document.activeElement);\n target && target.focus();\n },\n\n /**\n * Sets the zIndex for the backdrop and dialog.\n *\n * @param {number} dialogZ\n * @param {number} backdropZ\n */\n updateZIndex: function(dialogZ, backdropZ) {\n if (dialogZ < backdropZ) {\n throw new Error('dialogZ should never be < backdropZ');\n }\n this.dialog_.style.zIndex = dialogZ;\n this.backdrop_.style.zIndex = backdropZ;\n },\n\n /**\n * Shows the dialog. If the dialog is already open, this does nothing.\n */\n show: function() {\n if (!this.dialog_.open) {\n this.setOpen(true);\n this.focus_();\n }\n },\n\n /**\n * Show this dialog modally.\n */\n showModal: function() {\n if (this.dialog_.hasAttribute('open')) {\n throw new Error('Failed to execute \\'showModal\\' on dialog: The element is already open, and therefore cannot be opened modally.');\n }\n if (!document.body.contains(this.dialog_)) {\n throw new Error('Failed to execute \\'showModal\\' on dialog: The element is not in a Document.');\n }\n if (!dialogPolyfill.dm.pushDialog(this)) {\n throw new Error('Failed to execute \\'showModal\\' on dialog: There are too many open modal dialogs.');\n }\n\n if (createsStackingContext(this.dialog_.parentElement)) {\n console.warn('A dialog is being shown inside a stacking context. ' +\n 'This may cause it to be unusable. For more information, see this link: ' +\n 'https://github.com/GoogleChrome/dialog-polyfill/#stacking-context');\n }\n\n this.setOpen(true);\n this.openAsModal_ = true;\n\n // Optionally center vertically, relative to the current viewport.\n if (dialogPolyfill.needsCentering(this.dialog_)) {\n dialogPolyfill.reposition(this.dialog_);\n this.replacedStyleTop_ = true;\n } else {\n this.replacedStyleTop_ = false;\n }\n\n // Insert backdrop.\n this.dialog_.parentNode.insertBefore(this.backdrop_, this.dialog_.nextSibling);\n\n // Focus on whatever inside the dialog.\n this.focus_();\n },\n\n /**\n * Closes this HTMLDialogElement. This is optional vs clearing the open\n * attribute, however this fires a 'close' event.\n *\n * @param {string=} opt_returnValue to use as the returnValue\n */\n close: function(opt_returnValue) {\n if (!this.dialog_.hasAttribute('open')) {\n throw new Error('Failed to execute \\'close\\' on dialog: The element does not have an \\'open\\' attribute, and therefore cannot be closed.');\n }\n this.setOpen(false);\n\n // Leave returnValue untouched in case it was set directly on the element\n if (opt_returnValue !== undefined) {\n this.dialog_.returnValue = opt_returnValue;\n }\n\n // Triggering \"close\" event for any attached listeners on the <dialog>.\n var closeEvent = new supportCustomEvent('close', {\n bubbles: false,\n cancelable: false\n });\n this.dialog_.dispatchEvent(closeEvent);\n }\n\n};\n\nvar dialogPolyfill = {};\n\ndialogPolyfill.reposition = function(element) {\n var scrollTop = document.body.scrollTop || document.documentElement.scrollTop;\n var topValue = scrollTop + (window.innerHeight - element.offsetHeight) / 2;\n element.style.top = Math.max(scrollTop, topValue) + 'px';\n};\n\ndialogPolyfill.isInlinePositionSetByStylesheet = function(element) {\n for (var i = 0; i < document.styleSheets.length; ++i) {\n var styleSheet = document.styleSheets[i];\n var cssRules = null;\n // Some browsers throw on cssRules.\n try {\n cssRules = styleSheet.cssRules;\n } catch (e) {}\n if (!cssRules) { continue; }\n for (var j = 0; j < cssRules.length; ++j) {\n var rule = cssRules[j];\n var selectedNodes = null;\n // Ignore errors on invalid selector texts.\n try {\n selectedNodes = document.querySelectorAll(rule.selectorText);\n } catch(e) {}\n if (!selectedNodes || !inNodeList(selectedNodes, element)) {\n continue;\n }\n var cssTop = rule.style.getPropertyValue('top');\n var cssBottom = rule.style.getPropertyValue('bottom');\n if ((cssTop && cssTop !== 'auto') || (cssBottom && cssBottom !== 'auto')) {\n return true;\n }\n }\n }\n return false;\n};\n\ndialogPolyfill.needsCentering = function(dialog) {\n var computedStyle = window.getComputedStyle(dialog);\n if (computedStyle.position !== 'absolute') {\n return false;\n }\n\n // We must determine whether the top/bottom specified value is non-auto. In\n // WebKit/Blink, checking computedStyle.top == 'auto' is sufficient, but\n // Firefox returns the used value. So we do this crazy thing instead: check\n // the inline style and then go through CSS rules.\n if ((dialog.style.top !== 'auto' && dialog.style.top !== '') ||\n (dialog.style.bottom !== 'auto' && dialog.style.bottom !== '')) {\n return false;\n }\n return !dialogPolyfill.isInlinePositionSetByStylesheet(dialog);\n};\n\n/**\n * @param {!Element} element to force upgrade\n */\ndialogPolyfill.forceRegisterDialog = function(element) {\n if (window.HTMLDialogElement || element.showModal) {\n console.warn('This browser already supports <dialog>, the polyfill ' +\n 'may not work correctly', element);\n }\n if (element.localName !== 'dialog') {\n throw new Error('Failed to register dialog: The element is not a dialog.');\n }\n new dialogPolyfillInfo(/** @type {!HTMLDialogElement} */ (element));\n};\n\n/**\n * @param {!Element} element to upgrade, if necessary\n */\ndialogPolyfill.registerDialog = function(element) {\n if (!element.showModal) {\n dialogPolyfill.forceRegisterDialog(element);\n }\n};\n\n/**\n * @constructor\n */\ndialogPolyfill.DialogManager = function() {\n /** @type {!Array<!dialogPolyfillInfo>} */\n this.pendingDialogStack = [];\n\n var checkDOM = this.checkDOM_.bind(this);\n\n // The overlay is used to simulate how a modal dialog blocks the document.\n // The blocking dialog is positioned on top of the overlay, and the rest of\n // the dialogs on the pending dialog stack are positioned below it. In the\n // actual implementation, the modal dialog stacking is controlled by the\n // top layer, where z-index has no effect.\n this.overlay = document.createElement('div');\n this.overlay.className = '_dialog_overlay';\n this.overlay.addEventListener('click', function(e) {\n this.forwardTab_ = undefined;\n e.stopPropagation();\n checkDOM([]); // sanity-check DOM\n }.bind(this));\n\n this.handleKey_ = this.handleKey_.bind(this);\n this.handleFocus_ = this.handleFocus_.bind(this);\n\n this.zIndexLow_ = 100000;\n this.zIndexHigh_ = 100000 + 150;\n\n this.forwardTab_ = undefined;\n\n if ('MutationObserver' in window) {\n this.mo_ = new MutationObserver(function(records) {\n var removed = [];\n records.forEach(function(rec) {\n for (var i = 0, c; c = rec.removedNodes[i]; ++i) {\n if (!(c instanceof Element)) {\n continue;\n } else if (c.localName === 'dialog') {\n removed.push(c);\n }\n removed = removed.concat(c.querySelectorAll('dialog'));\n }\n });\n removed.length && checkDOM(removed);\n });\n }\n};\n\n/**\n * Called on the first modal dialog being shown. Adds the overlay and related\n * handlers.\n */\ndialogPolyfill.DialogManager.prototype.blockDocument = function() {\n document.documentElement.addEventListener('focus', this.handleFocus_, true);\n document.addEventListener('keydown', this.handleKey_);\n this.mo_ && this.mo_.observe(document, {childList: true, subtree: true});\n};\n\n/**\n * Called on the first modal dialog being removed, i.e., when no more modal\n * dialogs are visible.\n */\ndialogPolyfill.DialogManager.prototype.unblockDocument = function() {\n document.documentElement.removeEventListener('focus', this.handleFocus_, true);\n document.removeEventListener('keydown', this.handleKey_);\n this.mo_ && this.mo_.disconnect();\n};\n\n/**\n * Updates the stacking of all known dialogs.\n */\ndialogPolyfill.DialogManager.prototype.updateStacking = function() {\n var zIndex = this.zIndexHigh_;\n\n for (var i = 0, dpi; dpi = this.pendingDialogStack[i]; ++i) {\n dpi.updateZIndex(--zIndex, --zIndex);\n if (i === 0) {\n this.overlay.style.zIndex = --zIndex;\n }\n }\n\n // Make the overlay a sibling of the dialog itself.\n var last = this.pendingDialogStack[0];\n if (last) {\n var p = last.dialog.parentNode || document.body;\n p.appendChild(this.overlay);\n } else if (this.overlay.parentNode) {\n this.overlay.parentNode.removeChild(this.overlay);\n }\n};\n\n/**\n * @param {Element} candidate to check if contained or is the top-most modal dialog\n * @return {boolean} whether candidate is contained in top dialog\n */\ndialogPolyfill.DialogManager.prototype.containedByTopDialog_ = function(candidate) {\n while (candidate = findNearestDialog(candidate)) {\n for (var i = 0, dpi; dpi = this.pendingDialogStack[i]; ++i) {\n if (dpi.dialog === candidate) {\n return i === 0; // only valid if top-most\n }\n }\n candidate = candidate.parentElement;\n }\n return false;\n};\n\ndialogPolyfill.DialogManager.prototype.handleFocus_ = function(event) {\n if (this.containedByTopDialog_(event.target)) { return; }\n\n if (document.activeElement === document.documentElement) { return; }\n\n event.preventDefault();\n event.stopPropagation();\n safeBlur(/** @type {Element} */ (event.target));\n\n if (this.forwardTab_ === undefined) { return; } // move focus only from a tab key\n\n var dpi = this.pendingDialogStack[0];\n var dialog = dpi.dialog;\n var position = dialog.compareDocumentPosition(event.target);\n if (position & Node.DOCUMENT_POSITION_PRECEDING) {\n if (this.forwardTab_) {\n // forward\n dpi.focus_();\n } else if (event.target !== document.documentElement) {\n // backwards if we're not already focused on <html>\n document.documentElement.focus();\n }\n }\n\n return false;\n};\n\ndialogPolyfill.DialogManager.prototype.handleKey_ = function(event) {\n this.forwardTab_ = undefined;\n if (event.keyCode === 27) {\n event.preventDefault();\n event.stopPropagation();\n var cancelEvent = new supportCustomEvent('cancel', {\n bubbles: false,\n cancelable: true\n });\n var dpi = this.pendingDialogStack[0];\n if (dpi && dpi.dialog.dispatchEvent(cancelEvent)) {\n dpi.dialog.close();\n }\n } else if (event.keyCode === 9) {\n this.forwardTab_ = !event.shiftKey;\n }\n};\n\n/**\n * Finds and downgrades any known modal dialogs that are no longer displayed. Dialogs that are\n * removed and immediately readded don't stay modal, they become normal.\n *\n * @param {!Array<!HTMLDialogElement>} removed that have definitely been removed\n */\ndialogPolyfill.DialogManager.prototype.checkDOM_ = function(removed) {\n // This operates on a clone because it may cause it to change. Each change also calls\n // updateStacking, which only actually needs to happen once. But who removes many modal dialogs\n // at a time?!\n var clone = this.pendingDialogStack.slice();\n clone.forEach(function(dpi) {\n if (removed.indexOf(dpi.dialog) !== -1) {\n dpi.downgradeModal();\n } else {\n dpi.maybeHideModal();\n }\n });\n};\n\n/**\n * @param {!dialogPolyfillInfo} dpi\n * @return {boolean} whether the dialog was allowed\n */\ndialogPolyfill.DialogManager.prototype.pushDialog = function(dpi) {\n var allowed = (this.zIndexHigh_ - this.zIndexLow_) / 2 - 1;\n if (this.pendingDialogStack.length >= allowed) {\n return false;\n }\n if (this.pendingDialogStack.unshift(dpi) === 1) {\n this.blockDocument();\n }\n this.updateStacking();\n return true;\n};\n\n/**\n * @param {!dialogPolyfillInfo} dpi\n */\ndialogPolyfill.DialogManager.prototype.removeDialog = function(dpi) {\n var index = this.pendingDialogStack.indexOf(dpi);\n if (index === -1) { return; }\n\n this.pendingDialogStack.splice(index, 1);\n if (this.pendingDialogStack.length === 0) {\n this.unblockDocument();\n }\n this.updateStacking();\n};\n\ndialogPolyfill.dm = new dialogPolyfill.DialogManager();\ndialogPolyfill.formSubmitter = null;\ndialogPolyfill.useValue = null;\n\n/**\n * Installs global handlers, such as click listers and native method overrides. These are needed\n * even if a no dialog is registered, as they deal with <form method=\"dialog\">.\n */\nif (window.HTMLDialogElement === undefined) {\n\n /**\n * If HTMLFormElement translates method=\"DIALOG\" into 'get', then replace the descriptor with\n * one that returns the correct value.\n */\n var testForm = document.createElement('form');\n testForm.setAttribute('method', 'dialog');\n if (testForm.method !== 'dialog') {\n var methodDescriptor = Object.getOwnPropertyDescriptor(HTMLFormElement.prototype, 'method');\n if (methodDescriptor) {\n // nb. Some older iOS and older PhantomJS fail to return the descriptor. Don't do anything\n // and don't bother to update the element.\n var realGet = methodDescriptor.get;\n methodDescriptor.get = function() {\n if (isFormMethodDialog(this)) {\n return 'dialog';\n }\n return realGet.call(this);\n };\n var realSet = methodDescriptor.set;\n methodDescriptor.set = function(v) {\n if (typeof v === 'string' && v.toLowerCase() === 'dialog') {\n return this.setAttribute('method', v);\n }\n return realSet.call(this, v);\n };\n Object.defineProperty(HTMLFormElement.prototype, 'method', methodDescriptor);\n }\n }\n\n /**\n * Global 'click' handler, to capture the <input type=\"submit\"> or <button> element which has\n * submitted a <form method=\"dialog\">. Needed as Safari and others don't report this inside\n * document.activeElement.\n */\n document.addEventListener('click', function(ev) {\n dialogPolyfill.formSubmitter = null;\n dialogPolyfill.useValue = null;\n if (ev.defaultPrevented) { return; } // e.g. a submit which prevents default submission\n\n var target = /** @type {Element} */ (ev.target);\n if (!target || !isFormMethodDialog(target.form)) { return; }\n\n var valid = (target.type === 'submit' && ['button', 'input'].indexOf(target.localName) > -1);\n if (!valid) {\n if (!(target.localName === 'input' && target.type === 'image')) { return; }\n // this is a <input type=\"image\">, which can submit forms\n dialogPolyfill.useValue = ev.offsetX + ',' + ev.offsetY;\n }\n\n var dialog = findNearestDialog(target);\n if (!dialog) { return; }\n\n dialogPolyfill.formSubmitter = target;\n\n }, false);\n\n /**\n * Replace the native HTMLFormElement.submit() method, as it won't fire the\n * submit event and give us a chance to respond.\n */\n var nativeFormSubmit = HTMLFormElement.prototype.submit;\n var replacementFormSubmit = function () {\n if (!isFormMethodDialog(this)) {\n return nativeFormSubmit.call(this);\n }\n var dialog = findNearestDialog(this);\n dialog && dialog.close();\n };\n HTMLFormElement.prototype.submit = replacementFormSubmit;\n\n /**\n * Global form 'dialog' method handler. Closes a dialog correctly on submit\n * and possibly sets its return value.\n */\n document.addEventListener('submit', function(ev) {\n if (ev.defaultPrevented) { return; } // e.g. a submit which prevents default submission\n\n var form = /** @type {HTMLFormElement} */ (ev.target);\n if (!isFormMethodDialog(form)) { return; }\n ev.preventDefault();\n\n var dialog = findNearestDialog(form);\n if (!dialog) { return; }\n\n // Forms can only be submitted via .submit() or a click (?), but anyway: sanity-check that\n // the submitter is correct before using its value as .returnValue.\n var s = dialogPolyfill.formSubmitter;\n if (s && s.form === form) {\n dialog.close(dialogPolyfill.useValue || s.value);\n } else {\n dialog.close();\n }\n dialogPolyfill.formSubmitter = null;\n\n }, false);\n}\n\nexport default dialogPolyfill;\n", "function registerHeaderListeners() {\n const header = document.querySelector('.js-header');\n const menuButtons = document.querySelectorAll('.js-headerMenuButton');\n menuButtons.forEach(button => {\n button.addEventListener('click', e => {\n e.preventDefault();\n header?.classList.toggle('is-active');\n button.setAttribute('aria-expanded', String(header?.classList.contains('is-active')));\n });\n });\n\n const scrim = document.querySelector('.js-scrim');\n scrim?.addEventListener('click', e => {\n e.preventDefault();\n header?.classList.remove('is-active');\n menuButtons.forEach(button => {\n button.setAttribute('aria-expanded', String(header?.classList.contains('is-active')));\n });\n });\n}\n\nfunction registerSearchFormListeners() {\n const searchForm = document.querySelector('.js-searchForm');\n const expandSearch = document.querySelector('.js-expandSearch');\n const input = searchForm?.querySelector('input');\n const headerLogo = document.querySelector('.js-headerLogo');\n const menuButton = document.querySelector('.js-headerMenuButton');\n expandSearch?.addEventListener('click', () => {\n searchForm?.classList.add('go-SearchForm--expanded');\n headerLogo?.classList.add('go-Header-logo--hidden');\n menuButton?.classList.add('go-Header-navOpen--hidden');\n input?.focus();\n });\n document?.addEventListener('click', e => {\n if (!searchForm?.contains(e.target as Node)) {\n searchForm?.classList.remove('go-SearchForm--expanded');\n headerLogo?.classList.remove('go-Header-logo--hidden');\n menuButton?.classList.remove('go-Header-navOpen--hidden');\n }\n });\n}\n\nregisterHeaderListeners();\nregisterSearchFormListeners();\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * This class decorates an element to copy arbitrary data attached via a data-\n * attribute to the clipboard.\n */\nexport class ClipboardController {\n /**\n * The data to be copied to the clipboard.\n */\n private data: string;\n\n /**\n * @param el The element that will trigger copying text to the clipboard. The text is\n * expected to be within its data-to-copy attribute.\n */\n constructor(private el: HTMLButtonElement) {\n this.data = el.dataset['toCopy'] ?? el.innerText;\n // if data-to-copy is empty and the button is part of an input group\n // capture the value of the input.\n if (!this.data && el.parentElement?.classList.contains('go-InputGroup')) {\n this.data = (this.data || el.parentElement?.querySelector('input')?.value) ?? '';\n }\n el.addEventListener('click', e => this.handleCopyClick(e));\n }\n\n /**\n * Handles when the primary element is clicked.\n */\n handleCopyClick(e: MouseEvent): void {\n e.preventDefault();\n const TOOLTIP_SHOW_DURATION_MS = 1000;\n\n // This API is not available on iOS.\n if (!navigator.clipboard) {\n this.showTooltipText('Unable to copy', TOOLTIP_SHOW_DURATION_MS);\n return;\n }\n navigator.clipboard\n .writeText(this.data)\n .then(() => {\n this.showTooltipText('Copied!', TOOLTIP_SHOW_DURATION_MS);\n })\n .catch(() => {\n this.showTooltipText('Unable to copy', TOOLTIP_SHOW_DURATION_MS);\n });\n }\n\n /**\n * Shows the given text in a tooltip for a specified amount of time, in milliseconds.\n */\n showTooltipText(text: string, durationMs: number): void {\n this.el.setAttribute('data-tooltip', text);\n setTimeout(() => this.el.setAttribute('data-tooltip', ''), durationMs);\n }\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * ToolTipController handles closing tooltips on external clicks.\n */\nexport class ToolTipController {\n constructor(private el: HTMLDetailsElement) {\n document.addEventListener('click', e => {\n const insideTooltip = this.el.contains(e.target as Element);\n if (!insideTooltip) {\n this.el.removeAttribute('open');\n }\n });\n }\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { TreeNavController } from './tree.js';\n\nexport class SelectNavController {\n constructor(private el: Element) {\n this.el.addEventListener('change', e => {\n const target = e.target as HTMLSelectElement;\n let href = target.value;\n if (!target.value.startsWith('/')) {\n href = '/' + href;\n }\n window.location.href = href;\n });\n }\n}\n\nexport function makeSelectNav(tree: TreeNavController): HTMLLabelElement {\n const label = document.createElement('label');\n label.classList.add('go-Label');\n label.setAttribute('aria-label', 'Menu');\n const select = document.createElement('select');\n select.classList.add('go-Select', 'js-selectNav');\n label.appendChild(select);\n const outline = document.createElement('optgroup');\n outline.label = 'Outline';\n select.appendChild(outline);\n const groupMap: Record<string, HTMLOptGroupElement> = {};\n let group: HTMLOptGroupElement;\n for (const t of tree.treeitems) {\n if (Number(t.depth) > 4) continue;\n if (t.groupTreeitem) {\n group = groupMap[t.groupTreeitem.label];\n if (!group) {\n group = groupMap[t.groupTreeitem.label] = document.createElement('optgroup');\n group.label = t.groupTreeitem.label;\n select.appendChild(group);\n }\n } else {\n group = outline;\n }\n const o = document.createElement('option');\n o.label = t.label;\n o.textContent = t.label;\n o.value = (t.el as HTMLAnchorElement).href.replace(window.location.origin, '').replace('/', '');\n group.appendChild(o);\n }\n tree.addObserver(t => {\n const hash = (t.el as HTMLAnchorElement).hash;\n const value = select.querySelector<HTMLOptionElement>(`[value$=\"${hash}\"]`)?.value;\n if (value) {\n select.value = value;\n }\n }, 50);\n return label;\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * ModalController registers a dialog element with the polyfill if\n * necessary for the current browser, add adds event listeners to\n * close and open modals.\n */\nexport class ModalController {\n constructor(private el: HTMLDialogElement) {\n // Only load the dialog polyfill if necessary for the environment.\n if (!window.HTMLDialogElement && !el.showModal) {\n import('../../../third_party/dialog-polyfill/dialog-polyfill.esm.js').then(\n ({ default: polyfill }) => {\n polyfill.registerDialog(el);\n }\n );\n }\n const id = el.id;\n const button = document.querySelector<HTMLButtonElement>(`[aria-controls=\"${id}\"]`);\n if (button) {\n button.addEventListener('click', () => {\n if (this.el.showModal) {\n this.el.showModal();\n } else {\n this.el.open = true;\n }\n el.querySelector('input')?.focus();\n });\n }\n for (const close of this.el.querySelectorAll<HTMLButtonElement>('[data-modal-close]')) {\n close.addEventListener('click', () => {\n if (this.el.close) {\n this.el.close();\n } else {\n this.el.open = false;\n }\n });\n }\n }\n}\n", "interface TagManagerEvent {\n /**\n * event is the name of the event, used to filter events in\n * Google Analytics.\n */\n event: string;\n\n /**\n * event_category is a name that you supply as a way to group objects\n * that to analyze. Typically, you will use the same category name\n * multiple times over related UI elements (buttons, links, etc).\n */\n event_category?: string;\n\n /**\n * event_action is used to name the type of event or interaction you\n * want to measure for a particular web object. For example, with a\n * single \"form\" category, you can analyze a number of specific events\n * with this parameter, such as: form entered, form submitted.\n */\n event_action?: string;\n\n /**\n * event_label provide additional information for events that you want\n * to analyze, such as the text label of a link.\n */\n event_label?: string;\n\n /**\n * gtm.start is used to initialize Google Tag Manager.\n */\n 'gtm.start'?: number;\n}\n\n// eslint-disable-next-line @typescript-eslint/no-unused-vars\ndeclare global {\n interface Window {\n dataLayer?: (TagManagerEvent | VoidFunction)[];\n ga?: unknown;\n }\n}\n\n/**\n * track sends events to Google Tag Manager.\n */\nexport function track(\n event: string | TagManagerEvent,\n category?: string,\n action?: string,\n label?: string\n): void {\n window.dataLayer ??= [];\n if (typeof event === 'string') {\n window.dataLayer.push({\n event,\n event_category: category,\n event_action: action,\n event_label: label,\n });\n } else {\n window.dataLayer.push(event);\n }\n}\n\n/**\n * func adds functions to run sequentionally after\n * Google Tag Manager is ready.\n */\nexport function func(fn: () => void): void {\n window.dataLayer ??= [];\n window.dataLayer.push(fn);\n}\n", "/*!\n * @license\n * Copyright 2019-2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { track } from '../analytics/analytics';\n\n/**\n * Options are keyhandler callback options.\n */\ninterface Options {\n /**\n * target is the element the key event should filter on. The\n * default target is the document.\n */\n target?: Element;\n\n /**\n * withMeta specifies if the event callback should fire when\n * the key is pressed with a meta key (ctrl, alt, etc). By\n * default meta keypresses are ignored.\n */\n withMeta?: boolean;\n}\n\n/**\n * KeyHandler is the config for a keyboard event callback.\n */\ninterface KeyHandler extends Options {\n description: string;\n callback: (e: KeyboardEvent) => void;\n}\n\n/**\n * KeyboardController controls event callbacks for sitewide\n * keyboard events. Multiple callbacks can be registered for\n * a single key and by default the controller ignores events\n * for text input targets.\n */\nclass KeyboardController {\n handlers: Record<string, Set<KeyHandler>>;\n\n constructor() {\n this.handlers = {};\n document.addEventListener('keydown', e => this.handleKeyPress(e));\n }\n\n /**\n * on registers keyboard event callbacks.\n * @param key the key to register.\n * @param description name of the event.\n * @param callback event callback.\n * @param options set target and withMeta options to override the default behaviors.\n */\n on(key: string, description: string, callback: (e: KeyboardEvent) => void, options?: Options) {\n this.handlers[key] ??= new Set();\n this.handlers[key].add({ description, callback, ...options });\n return this;\n }\n\n private handleKeyPress(e: KeyboardEvent) {\n for (const handler of this.handlers[e.key.toLowerCase()] ?? new Set()) {\n if (handler.target && handler.target !== e.target) {\n return;\n }\n const t = e.target as HTMLElement | null;\n if (\n !handler.target &&\n (t?.tagName === 'INPUT' || t?.tagName === 'SELECT' || t?.tagName === 'TEXTAREA')\n ) {\n return;\n }\n if (t?.isContentEditable) {\n return;\n }\n if (\n (handler.withMeta && !(e.ctrlKey || e.metaKey)) ||\n (!handler.withMeta && (e.ctrlKey || e.metaKey))\n ) {\n return;\n }\n track('keypress', 'hotkeys', `${e.key} pressed`, handler.description);\n handler.callback(e);\n }\n }\n}\n\nexport const keyboard = new KeyboardController();\n", "/**\n * @license\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport './header/header';\nimport { ClipboardController } from './clipboard/clipboard';\nimport { ToolTipController } from './tooltip/tooltip';\nimport { SelectNavController } from './outline/select';\nimport { ModalController } from './modal/modal';\n\nexport { keyboard } from './keyboard/keyboard';\nexport * as analytics from './analytics/analytics';\n\nfor (const el of document.querySelectorAll<HTMLButtonElement>('.js-clipboard')) {\n new ClipboardController(el);\n}\n\nfor (const el of document.querySelectorAll<HTMLDialogElement>('.js-modal')) {\n new ModalController(el);\n}\n\nfor (const t of document.querySelectorAll<HTMLDetailsElement>('.js-tooltip')) {\n new ToolTipController(t);\n}\n\nfor (const el of document.querySelectorAll<HTMLSelectElement>('.js-selectNav')) {\n new SelectNavController(el);\n}\n", "/**\n * @license\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { analytics, keyboard } from '../shared/shared';\n\n// Temporary shortcut for testing out the dark theme.\nkeyboard.on('t', 'toggle theme', () => {\n let nextTheme = 'dark';\n const theme = document.documentElement.getAttribute('data-theme');\n if (theme === 'dark') {\n nextTheme = 'light';\n } else if (theme === 'light') {\n nextTheme = 'auto';\n }\n document.documentElement.setAttribute('data-theme', nextTheme);\n document.cookie = `prefers-color-scheme=${nextTheme};path=/;max-age=31536000;`;\n});\n\n// Pressing '/' focuses the search box\nkeyboard.on('/', 'focus search', e => {\n const searchInput = Array.from(\n document.querySelectorAll<HTMLInputElement>('.js-searchFocus')\n ).pop();\n // Favoring the Firefox quick find feature over search input\n // focus. See: https://github.com/golang/go/issues/41093.\n if (searchInput && !window.navigator.userAgent.includes('Firefox')) {\n e.preventDefault();\n searchInput.focus();\n }\n});\n\n// Pressing 'y' changes the browser URL to the canonical URL\n// without triggering a reload.\nkeyboard.on('y', 'set canonical url', () => {\n const canonicalURLPath = document.querySelector<HTMLDivElement>('.js-canonicalURLPath')?.dataset[\n 'canonicalUrlPath'\n ];\n if (canonicalURLPath && canonicalURLPath !== '') {\n window.history.replaceState(null, '', canonicalURLPath);\n }\n});\n\n/**\n * setupGoogleTagManager intializes Google Tag Manager.\n */\n(function setupGoogleTagManager() {\n analytics.track({\n 'gtm.start': new Date().getTime(),\n event: 'gtm.js',\n });\n})();\n\n/**\n * removeUTMSource removes the utm_source GET parameter if present.\n * This is done using JavaScript, so that the utm_source is still\n * captured by Google Analytics.\n */\nfunction removeUTMSource() {\n const urlParams = new URLSearchParams(window.location.search);\n const utmSource = urlParams.get('utm_source');\n if (utmSource !== 'gopls' && utmSource !== 'godoc' && utmSource !== 'pkggodev') {\n return;\n }\n\n /** Strip the utm_source query parameter and replace the URL. **/\n const newURL = new URL(window.location.href);\n urlParams.delete('utm_source');\n newURL.search = urlParams.toString();\n window.history.replaceState(null, '', newURL.toString());\n}\n\nif (document.querySelector<HTMLElement>('.js-gtmID')?.dataset.gtmid && window.dataLayer) {\n analytics.func(function () {\n removeUTMSource();\n });\n} else {\n removeUTMSource();\n}\n"],
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+ "sourcesContent": ["// nb. This is for IE10 and lower _only_.\nvar supportCustomEvent = window.CustomEvent;\nif (!supportCustomEvent || typeof supportCustomEvent === 'object') {\n supportCustomEvent = function CustomEvent(event, x) {\n x = x || {};\n var ev = document.createEvent('CustomEvent');\n ev.initCustomEvent(event, !!x.bubbles, !!x.cancelable, x.detail || null);\n return ev;\n };\n supportCustomEvent.prototype = window.Event.prototype;\n}\n\n/**\n * @param {Element} el to check for stacking context\n * @return {boolean} whether this el or its parents creates a stacking context\n */\nfunction createsStackingContext(el) {\n while (el && el !== document.body) {\n var s = window.getComputedStyle(el);\n var invalid = function(k, ok) {\n return !(s[k] === undefined || s[k] === ok);\n };\n\n if (s.opacity < 1 ||\n invalid('zIndex', 'auto') ||\n invalid('transform', 'none') ||\n invalid('mixBlendMode', 'normal') ||\n invalid('filter', 'none') ||\n invalid('perspective', 'none') ||\n s['isolation'] === 'isolate' ||\n s.position === 'fixed' ||\n s.webkitOverflowScrolling === 'touch') {\n return true;\n }\n el = el.parentElement;\n }\n return false;\n}\n\n/**\n * Finds the nearest <dialog> from the passed element.\n *\n * @param {Element} el to search from\n * @return {HTMLDialogElement} dialog found\n */\nfunction findNearestDialog(el) {\n while (el) {\n if (el.localName === 'dialog') {\n return /** @type {HTMLDialogElement} */ (el);\n }\n el = el.parentElement;\n }\n return null;\n}\n\n/**\n * Blur the specified element, as long as it's not the HTML body element.\n * This works around an IE9/10 bug - blurring the body causes Windows to\n * blur the whole application.\n *\n * @param {Element} el to blur\n */\nfunction safeBlur(el) {\n if (el && el.blur && el !== document.body) {\n el.blur();\n }\n}\n\n/**\n * @param {!NodeList} nodeList to search\n * @param {Node} node to find\n * @return {boolean} whether node is inside nodeList\n */\nfunction inNodeList(nodeList, node) {\n for (var i = 0; i < nodeList.length; ++i) {\n if (nodeList[i] === node) {\n return true;\n }\n }\n return false;\n}\n\n/**\n * @param {HTMLFormElement} el to check\n * @return {boolean} whether this form has method=\"dialog\"\n */\nfunction isFormMethodDialog(el) {\n if (!el || !el.hasAttribute('method')) {\n return false;\n }\n return el.getAttribute('method').toLowerCase() === 'dialog';\n}\n\n/**\n * @param {!HTMLDialogElement} dialog to upgrade\n * @constructor\n */\nfunction dialogPolyfillInfo(dialog) {\n this.dialog_ = dialog;\n this.replacedStyleTop_ = false;\n this.openAsModal_ = false;\n\n // Set a11y role. Browsers that support dialog implicitly know this already.\n if (!dialog.hasAttribute('role')) {\n dialog.setAttribute('role', 'dialog');\n }\n\n dialog.show = this.show.bind(this);\n dialog.showModal = this.showModal.bind(this);\n dialog.close = this.close.bind(this);\n\n if (!('returnValue' in dialog)) {\n dialog.returnValue = '';\n }\n\n if ('MutationObserver' in window) {\n var mo = new MutationObserver(this.maybeHideModal.bind(this));\n mo.observe(dialog, {attributes: true, attributeFilter: ['open']});\n } else {\n // IE10 and below support. Note that DOMNodeRemoved etc fire _before_ removal. They also\n // seem to fire even if the element was removed as part of a parent removal. Use the removed\n // events to force downgrade (useful if removed/immediately added).\n var removed = false;\n var cb = function() {\n removed ? this.downgradeModal() : this.maybeHideModal();\n removed = false;\n }.bind(this);\n var timeout;\n var delayModel = function(ev) {\n if (ev.target !== dialog) { return; } // not for a child element\n var cand = 'DOMNodeRemoved';\n removed |= (ev.type.substr(0, cand.length) === cand);\n window.clearTimeout(timeout);\n timeout = window.setTimeout(cb, 0);\n };\n ['DOMAttrModified', 'DOMNodeRemoved', 'DOMNodeRemovedFromDocument'].forEach(function(name) {\n dialog.addEventListener(name, delayModel);\n });\n }\n // Note that the DOM is observed inside DialogManager while any dialog\n // is being displayed as a modal, to catch modal removal from the DOM.\n\n Object.defineProperty(dialog, 'open', {\n set: this.setOpen.bind(this),\n get: dialog.hasAttribute.bind(dialog, 'open')\n });\n\n this.backdrop_ = document.createElement('div');\n this.backdrop_.className = 'backdrop';\n this.backdrop_.addEventListener('click', this.backdropClick_.bind(this));\n}\n\ndialogPolyfillInfo.prototype = {\n\n get dialog() {\n return this.dialog_;\n },\n\n /**\n * Maybe remove this dialog from the modal top layer. This is called when\n * a modal dialog may no longer be tenable, e.g., when the dialog is no\n * longer open or is no longer part of the DOM.\n */\n maybeHideModal: function() {\n if (this.dialog_.hasAttribute('open') && document.body.contains(this.dialog_)) { return; }\n this.downgradeModal();\n },\n\n /**\n * Remove this dialog from the modal top layer, leaving it as a non-modal.\n */\n downgradeModal: function() {\n if (!this.openAsModal_) { return; }\n this.openAsModal_ = false;\n this.dialog_.style.zIndex = '';\n\n // This won't match the native <dialog> exactly because if the user set top on a centered\n // polyfill dialog, that top gets thrown away when the dialog is closed. Not sure it's\n // possible to polyfill this perfectly.\n if (this.replacedStyleTop_) {\n this.dialog_.style.top = '';\n this.replacedStyleTop_ = false;\n }\n\n // Clear the backdrop and remove from the manager.\n this.backdrop_.parentNode && this.backdrop_.parentNode.removeChild(this.backdrop_);\n dialogPolyfill.dm.removeDialog(this);\n },\n\n /**\n * @param {boolean} value whether to open or close this dialog\n */\n setOpen: function(value) {\n if (value) {\n this.dialog_.hasAttribute('open') || this.dialog_.setAttribute('open', '');\n } else {\n this.dialog_.removeAttribute('open');\n this.maybeHideModal(); // nb. redundant with MutationObserver\n }\n },\n\n /**\n * Handles clicks on the fake .backdrop element, redirecting them as if\n * they were on the dialog itself.\n *\n * @param {!Event} e to redirect\n */\n backdropClick_: function(e) {\n if (!this.dialog_.hasAttribute('tabindex')) {\n // Clicking on the backdrop should move the implicit cursor, even if dialog cannot be\n // focused. Create a fake thing to focus on. If the backdrop was _before_ the dialog, this\n // would not be needed - clicks would move the implicit cursor there.\n var fake = document.createElement('div');\n this.dialog_.insertBefore(fake, this.dialog_.firstChild);\n fake.tabIndex = -1;\n fake.focus();\n this.dialog_.removeChild(fake);\n } else {\n this.dialog_.focus();\n }\n\n var redirectedEvent = document.createEvent('MouseEvents');\n redirectedEvent.initMouseEvent(e.type, e.bubbles, e.cancelable, window,\n e.detail, e.screenX, e.screenY, e.clientX, e.clientY, e.ctrlKey,\n e.altKey, e.shiftKey, e.metaKey, e.button, e.relatedTarget);\n this.dialog_.dispatchEvent(redirectedEvent);\n e.stopPropagation();\n },\n\n /**\n * Focuses on the first focusable element within the dialog. This will always blur the current\n * focus, even if nothing within the dialog is found.\n */\n focus_: function() {\n // Find element with `autofocus` attribute, or fall back to the first form/tabindex control.\n var target = this.dialog_.querySelector('[autofocus]:not([disabled])');\n if (!target && this.dialog_.tabIndex >= 0) {\n target = this.dialog_;\n }\n if (!target) {\n // Note that this is 'any focusable area'. This list is probably not exhaustive, but the\n // alternative involves stepping through and trying to focus everything.\n var opts = ['button', 'input', 'keygen', 'select', 'textarea'];\n var query = opts.map(function(el) {\n return el + ':not([disabled])';\n });\n // TODO(samthor): tabindex values that are not numeric are not focusable.\n query.push('[tabindex]:not([disabled]):not([tabindex=\"\"])'); // tabindex != \"\", not disabled\n target = this.dialog_.querySelector(query.join(', '));\n }\n safeBlur(document.activeElement);\n target && target.focus();\n },\n\n /**\n * Sets the zIndex for the backdrop and dialog.\n *\n * @param {number} dialogZ\n * @param {number} backdropZ\n */\n updateZIndex: function(dialogZ, backdropZ) {\n if (dialogZ < backdropZ) {\n throw new Error('dialogZ should never be < backdropZ');\n }\n this.dialog_.style.zIndex = dialogZ;\n this.backdrop_.style.zIndex = backdropZ;\n },\n\n /**\n * Shows the dialog. If the dialog is already open, this does nothing.\n */\n show: function() {\n if (!this.dialog_.open) {\n this.setOpen(true);\n this.focus_();\n }\n },\n\n /**\n * Show this dialog modally.\n */\n showModal: function() {\n if (this.dialog_.hasAttribute('open')) {\n throw new Error('Failed to execute \\'showModal\\' on dialog: The element is already open, and therefore cannot be opened modally.');\n }\n if (!document.body.contains(this.dialog_)) {\n throw new Error('Failed to execute \\'showModal\\' on dialog: The element is not in a Document.');\n }\n if (!dialogPolyfill.dm.pushDialog(this)) {\n throw new Error('Failed to execute \\'showModal\\' on dialog: There are too many open modal dialogs.');\n }\n\n if (createsStackingContext(this.dialog_.parentElement)) {\n console.warn('A dialog is being shown inside a stacking context. ' +\n 'This may cause it to be unusable. For more information, see this link: ' +\n 'https://github.com/GoogleChrome/dialog-polyfill/#stacking-context');\n }\n\n this.setOpen(true);\n this.openAsModal_ = true;\n\n // Optionally center vertically, relative to the current viewport.\n if (dialogPolyfill.needsCentering(this.dialog_)) {\n dialogPolyfill.reposition(this.dialog_);\n this.replacedStyleTop_ = true;\n } else {\n this.replacedStyleTop_ = false;\n }\n\n // Insert backdrop.\n this.dialog_.parentNode.insertBefore(this.backdrop_, this.dialog_.nextSibling);\n\n // Focus on whatever inside the dialog.\n this.focus_();\n },\n\n /**\n * Closes this HTMLDialogElement. This is optional vs clearing the open\n * attribute, however this fires a 'close' event.\n *\n * @param {string=} opt_returnValue to use as the returnValue\n */\n close: function(opt_returnValue) {\n if (!this.dialog_.hasAttribute('open')) {\n throw new Error('Failed to execute \\'close\\' on dialog: The element does not have an \\'open\\' attribute, and therefore cannot be closed.');\n }\n this.setOpen(false);\n\n // Leave returnValue untouched in case it was set directly on the element\n if (opt_returnValue !== undefined) {\n this.dialog_.returnValue = opt_returnValue;\n }\n\n // Triggering \"close\" event for any attached listeners on the <dialog>.\n var closeEvent = new supportCustomEvent('close', {\n bubbles: false,\n cancelable: false\n });\n this.dialog_.dispatchEvent(closeEvent);\n }\n\n};\n\nvar dialogPolyfill = {};\n\ndialogPolyfill.reposition = function(element) {\n var scrollTop = document.body.scrollTop || document.documentElement.scrollTop;\n var topValue = scrollTop + (window.innerHeight - element.offsetHeight) / 2;\n element.style.top = Math.max(scrollTop, topValue) + 'px';\n};\n\ndialogPolyfill.isInlinePositionSetByStylesheet = function(element) {\n for (var i = 0; i < document.styleSheets.length; ++i) {\n var styleSheet = document.styleSheets[i];\n var cssRules = null;\n // Some browsers throw on cssRules.\n try {\n cssRules = styleSheet.cssRules;\n } catch (e) {}\n if (!cssRules) { continue; }\n for (var j = 0; j < cssRules.length; ++j) {\n var rule = cssRules[j];\n var selectedNodes = null;\n // Ignore errors on invalid selector texts.\n try {\n selectedNodes = document.querySelectorAll(rule.selectorText);\n } catch(e) {}\n if (!selectedNodes || !inNodeList(selectedNodes, element)) {\n continue;\n }\n var cssTop = rule.style.getPropertyValue('top');\n var cssBottom = rule.style.getPropertyValue('bottom');\n if ((cssTop && cssTop !== 'auto') || (cssBottom && cssBottom !== 'auto')) {\n return true;\n }\n }\n }\n return false;\n};\n\ndialogPolyfill.needsCentering = function(dialog) {\n var computedStyle = window.getComputedStyle(dialog);\n if (computedStyle.position !== 'absolute') {\n return false;\n }\n\n // We must determine whether the top/bottom specified value is non-auto. In\n // WebKit/Blink, checking computedStyle.top == 'auto' is sufficient, but\n // Firefox returns the used value. So we do this crazy thing instead: check\n // the inline style and then go through CSS rules.\n if ((dialog.style.top !== 'auto' && dialog.style.top !== '') ||\n (dialog.style.bottom !== 'auto' && dialog.style.bottom !== '')) {\n return false;\n }\n return !dialogPolyfill.isInlinePositionSetByStylesheet(dialog);\n};\n\n/**\n * @param {!Element} element to force upgrade\n */\ndialogPolyfill.forceRegisterDialog = function(element) {\n if (window.HTMLDialogElement || element.showModal) {\n console.warn('This browser already supports <dialog>, the polyfill ' +\n 'may not work correctly', element);\n }\n if (element.localName !== 'dialog') {\n throw new Error('Failed to register dialog: The element is not a dialog.');\n }\n new dialogPolyfillInfo(/** @type {!HTMLDialogElement} */ (element));\n};\n\n/**\n * @param {!Element} element to upgrade, if necessary\n */\ndialogPolyfill.registerDialog = function(element) {\n if (!element.showModal) {\n dialogPolyfill.forceRegisterDialog(element);\n }\n};\n\n/**\n * @constructor\n */\ndialogPolyfill.DialogManager = function() {\n /** @type {!Array<!dialogPolyfillInfo>} */\n this.pendingDialogStack = [];\n\n var checkDOM = this.checkDOM_.bind(this);\n\n // The overlay is used to simulate how a modal dialog blocks the document.\n // The blocking dialog is positioned on top of the overlay, and the rest of\n // the dialogs on the pending dialog stack are positioned below it. In the\n // actual implementation, the modal dialog stacking is controlled by the\n // top layer, where z-index has no effect.\n this.overlay = document.createElement('div');\n this.overlay.className = '_dialog_overlay';\n this.overlay.addEventListener('click', function(e) {\n this.forwardTab_ = undefined;\n e.stopPropagation();\n checkDOM([]); // sanity-check DOM\n }.bind(this));\n\n this.handleKey_ = this.handleKey_.bind(this);\n this.handleFocus_ = this.handleFocus_.bind(this);\n\n this.zIndexLow_ = 100000;\n this.zIndexHigh_ = 100000 + 150;\n\n this.forwardTab_ = undefined;\n\n if ('MutationObserver' in window) {\n this.mo_ = new MutationObserver(function(records) {\n var removed = [];\n records.forEach(function(rec) {\n for (var i = 0, c; c = rec.removedNodes[i]; ++i) {\n if (!(c instanceof Element)) {\n continue;\n } else if (c.localName === 'dialog') {\n removed.push(c);\n }\n removed = removed.concat(c.querySelectorAll('dialog'));\n }\n });\n removed.length && checkDOM(removed);\n });\n }\n};\n\n/**\n * Called on the first modal dialog being shown. Adds the overlay and related\n * handlers.\n */\ndialogPolyfill.DialogManager.prototype.blockDocument = function() {\n document.documentElement.addEventListener('focus', this.handleFocus_, true);\n document.addEventListener('keydown', this.handleKey_);\n this.mo_ && this.mo_.observe(document, {childList: true, subtree: true});\n};\n\n/**\n * Called on the first modal dialog being removed, i.e., when no more modal\n * dialogs are visible.\n */\ndialogPolyfill.DialogManager.prototype.unblockDocument = function() {\n document.documentElement.removeEventListener('focus', this.handleFocus_, true);\n document.removeEventListener('keydown', this.handleKey_);\n this.mo_ && this.mo_.disconnect();\n};\n\n/**\n * Updates the stacking of all known dialogs.\n */\ndialogPolyfill.DialogManager.prototype.updateStacking = function() {\n var zIndex = this.zIndexHigh_;\n\n for (var i = 0, dpi; dpi = this.pendingDialogStack[i]; ++i) {\n dpi.updateZIndex(--zIndex, --zIndex);\n if (i === 0) {\n this.overlay.style.zIndex = --zIndex;\n }\n }\n\n // Make the overlay a sibling of the dialog itself.\n var last = this.pendingDialogStack[0];\n if (last) {\n var p = last.dialog.parentNode || document.body;\n p.appendChild(this.overlay);\n } else if (this.overlay.parentNode) {\n this.overlay.parentNode.removeChild(this.overlay);\n }\n};\n\n/**\n * @param {Element} candidate to check if contained or is the top-most modal dialog\n * @return {boolean} whether candidate is contained in top dialog\n */\ndialogPolyfill.DialogManager.prototype.containedByTopDialog_ = function(candidate) {\n while (candidate = findNearestDialog(candidate)) {\n for (var i = 0, dpi; dpi = this.pendingDialogStack[i]; ++i) {\n if (dpi.dialog === candidate) {\n return i === 0; // only valid if top-most\n }\n }\n candidate = candidate.parentElement;\n }\n return false;\n};\n\ndialogPolyfill.DialogManager.prototype.handleFocus_ = function(event) {\n if (this.containedByTopDialog_(event.target)) { return; }\n\n if (document.activeElement === document.documentElement) { return; }\n\n event.preventDefault();\n event.stopPropagation();\n safeBlur(/** @type {Element} */ (event.target));\n\n if (this.forwardTab_ === undefined) { return; } // move focus only from a tab key\n\n var dpi = this.pendingDialogStack[0];\n var dialog = dpi.dialog;\n var position = dialog.compareDocumentPosition(event.target);\n if (position & Node.DOCUMENT_POSITION_PRECEDING) {\n if (this.forwardTab_) {\n // forward\n dpi.focus_();\n } else if (event.target !== document.documentElement) {\n // backwards if we're not already focused on <html>\n document.documentElement.focus();\n }\n }\n\n return false;\n};\n\ndialogPolyfill.DialogManager.prototype.handleKey_ = function(event) {\n this.forwardTab_ = undefined;\n if (event.keyCode === 27) {\n event.preventDefault();\n event.stopPropagation();\n var cancelEvent = new supportCustomEvent('cancel', {\n bubbles: false,\n cancelable: true\n });\n var dpi = this.pendingDialogStack[0];\n if (dpi && dpi.dialog.dispatchEvent(cancelEvent)) {\n dpi.dialog.close();\n }\n } else if (event.keyCode === 9) {\n this.forwardTab_ = !event.shiftKey;\n }\n};\n\n/**\n * Finds and downgrades any known modal dialogs that are no longer displayed. Dialogs that are\n * removed and immediately readded don't stay modal, they become normal.\n *\n * @param {!Array<!HTMLDialogElement>} removed that have definitely been removed\n */\ndialogPolyfill.DialogManager.prototype.checkDOM_ = function(removed) {\n // This operates on a clone because it may cause it to change. Each change also calls\n // updateStacking, which only actually needs to happen once. But who removes many modal dialogs\n // at a time?!\n var clone = this.pendingDialogStack.slice();\n clone.forEach(function(dpi) {\n if (removed.indexOf(dpi.dialog) !== -1) {\n dpi.downgradeModal();\n } else {\n dpi.maybeHideModal();\n }\n });\n};\n\n/**\n * @param {!dialogPolyfillInfo} dpi\n * @return {boolean} whether the dialog was allowed\n */\ndialogPolyfill.DialogManager.prototype.pushDialog = function(dpi) {\n var allowed = (this.zIndexHigh_ - this.zIndexLow_) / 2 - 1;\n if (this.pendingDialogStack.length >= allowed) {\n return false;\n }\n if (this.pendingDialogStack.unshift(dpi) === 1) {\n this.blockDocument();\n }\n this.updateStacking();\n return true;\n};\n\n/**\n * @param {!dialogPolyfillInfo} dpi\n */\ndialogPolyfill.DialogManager.prototype.removeDialog = function(dpi) {\n var index = this.pendingDialogStack.indexOf(dpi);\n if (index === -1) { return; }\n\n this.pendingDialogStack.splice(index, 1);\n if (this.pendingDialogStack.length === 0) {\n this.unblockDocument();\n }\n this.updateStacking();\n};\n\ndialogPolyfill.dm = new dialogPolyfill.DialogManager();\ndialogPolyfill.formSubmitter = null;\ndialogPolyfill.useValue = null;\n\n/**\n * Installs global handlers, such as click listers and native method overrides. These are needed\n * even if a no dialog is registered, as they deal with <form method=\"dialog\">.\n */\nif (window.HTMLDialogElement === undefined) {\n\n /**\n * If HTMLFormElement translates method=\"DIALOG\" into 'get', then replace the descriptor with\n * one that returns the correct value.\n */\n var testForm = document.createElement('form');\n testForm.setAttribute('method', 'dialog');\n if (testForm.method !== 'dialog') {\n var methodDescriptor = Object.getOwnPropertyDescriptor(HTMLFormElement.prototype, 'method');\n if (methodDescriptor) {\n // nb. Some older iOS and older PhantomJS fail to return the descriptor. Don't do anything\n // and don't bother to update the element.\n var realGet = methodDescriptor.get;\n methodDescriptor.get = function() {\n if (isFormMethodDialog(this)) {\n return 'dialog';\n }\n return realGet.call(this);\n };\n var realSet = methodDescriptor.set;\n methodDescriptor.set = function(v) {\n if (typeof v === 'string' && v.toLowerCase() === 'dialog') {\n return this.setAttribute('method', v);\n }\n return realSet.call(this, v);\n };\n Object.defineProperty(HTMLFormElement.prototype, 'method', methodDescriptor);\n }\n }\n\n /**\n * Global 'click' handler, to capture the <input type=\"submit\"> or <button> element which has\n * submitted a <form method=\"dialog\">. Needed as Safari and others don't report this inside\n * document.activeElement.\n */\n document.addEventListener('click', function(ev) {\n dialogPolyfill.formSubmitter = null;\n dialogPolyfill.useValue = null;\n if (ev.defaultPrevented) { return; } // e.g. a submit which prevents default submission\n\n var target = /** @type {Element} */ (ev.target);\n if (!target || !isFormMethodDialog(target.form)) { return; }\n\n var valid = (target.type === 'submit' && ['button', 'input'].indexOf(target.localName) > -1);\n if (!valid) {\n if (!(target.localName === 'input' && target.type === 'image')) { return; }\n // this is a <input type=\"image\">, which can submit forms\n dialogPolyfill.useValue = ev.offsetX + ',' + ev.offsetY;\n }\n\n var dialog = findNearestDialog(target);\n if (!dialog) { return; }\n\n dialogPolyfill.formSubmitter = target;\n\n }, false);\n\n /**\n * Replace the native HTMLFormElement.submit() method, as it won't fire the\n * submit event and give us a chance to respond.\n */\n var nativeFormSubmit = HTMLFormElement.prototype.submit;\n var replacementFormSubmit = function () {\n if (!isFormMethodDialog(this)) {\n return nativeFormSubmit.call(this);\n }\n var dialog = findNearestDialog(this);\n dialog && dialog.close();\n };\n HTMLFormElement.prototype.submit = replacementFormSubmit;\n\n /**\n * Global form 'dialog' method handler. Closes a dialog correctly on submit\n * and possibly sets its return value.\n */\n document.addEventListener('submit', function(ev) {\n if (ev.defaultPrevented) { return; } // e.g. a submit which prevents default submission\n\n var form = /** @type {HTMLFormElement} */ (ev.target);\n if (!isFormMethodDialog(form)) { return; }\n ev.preventDefault();\n\n var dialog = findNearestDialog(form);\n if (!dialog) { return; }\n\n // Forms can only be submitted via .submit() or a click (?), but anyway: sanity-check that\n // the submitter is correct before using its value as .returnValue.\n var s = dialogPolyfill.formSubmitter;\n if (s && s.form === form) {\n dialog.close(dialogPolyfill.useValue || s.value);\n } else {\n dialog.close();\n }\n dialogPolyfill.formSubmitter = null;\n\n }, false);\n}\n\nexport default dialogPolyfill;\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nfunction registerHeaderListeners() {\n const header = document.querySelector('.js-header');\n const menuButtons = document.querySelectorAll('.js-headerMenuButton');\n menuButtons.forEach(button => {\n button.addEventListener('click', e => {\n e.preventDefault();\n header?.classList.toggle('is-active');\n button.setAttribute('aria-expanded', String(header?.classList.contains('is-active')));\n });\n });\n\n const scrim = document.querySelector('.js-scrim');\n scrim?.addEventListener('click', e => {\n e.preventDefault();\n header?.classList.remove('is-active');\n menuButtons.forEach(button => {\n button.setAttribute('aria-expanded', String(header?.classList.contains('is-active')));\n });\n });\n}\n\nfunction registerSearchFormListeners() {\n const searchForm = document.querySelector('.js-searchForm');\n const expandSearch = document.querySelector('.js-expandSearch');\n const input = searchForm?.querySelector('input');\n const headerLogo = document.querySelector('.js-headerLogo');\n const menuButton = document.querySelector('.js-headerMenuButton');\n expandSearch?.addEventListener('click', () => {\n searchForm?.classList.add('go-SearchForm--expanded');\n headerLogo?.classList.add('go-Header-logo--hidden');\n menuButton?.classList.add('go-Header-navOpen--hidden');\n input?.focus();\n });\n document?.addEventListener('click', e => {\n if (!searchForm?.contains(e.target as Node)) {\n searchForm?.classList.remove('go-SearchForm--expanded');\n headerLogo?.classList.remove('go-Header-logo--hidden');\n menuButton?.classList.remove('go-Header-navOpen--hidden');\n }\n });\n}\n\nregisterHeaderListeners();\nregisterSearchFormListeners();\n\nexport {};\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * This class decorates an element to copy arbitrary data attached via a data-\n * attribute to the clipboard.\n */\nexport class ClipboardController {\n /**\n * The data to be copied to the clipboard.\n */\n private data: string;\n\n /**\n * @param el The element that will trigger copying text to the clipboard. The text is\n * expected to be within its data-to-copy attribute.\n */\n constructor(private el: HTMLButtonElement) {\n this.data = el.dataset['toCopy'] ?? el.innerText;\n // if data-to-copy is empty and the button is part of an input group\n // capture the value of the input.\n if (!this.data && el.parentElement?.classList.contains('go-InputGroup')) {\n this.data = (this.data || el.parentElement?.querySelector('input')?.value) ?? '';\n }\n el.addEventListener('click', e => this.handleCopyClick(e));\n }\n\n /**\n * Handles when the primary element is clicked.\n */\n handleCopyClick(e: MouseEvent): void {\n e.preventDefault();\n const TOOLTIP_SHOW_DURATION_MS = 1000;\n\n // This API is not available on iOS.\n if (!navigator.clipboard) {\n this.showTooltipText('Unable to copy', TOOLTIP_SHOW_DURATION_MS);\n return;\n }\n navigator.clipboard\n .writeText(this.data)\n .then(() => {\n this.showTooltipText('Copied!', TOOLTIP_SHOW_DURATION_MS);\n })\n .catch(() => {\n this.showTooltipText('Unable to copy', TOOLTIP_SHOW_DURATION_MS);\n });\n }\n\n /**\n * Shows the given text in a tooltip for a specified amount of time, in milliseconds.\n */\n showTooltipText(text: string, durationMs: number): void {\n this.el.setAttribute('data-tooltip', text);\n setTimeout(() => this.el.setAttribute('data-tooltip', ''), durationMs);\n }\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * ToolTipController handles closing tooltips on external clicks.\n */\nexport class ToolTipController {\n constructor(private el: HTMLDetailsElement) {\n document.addEventListener('click', e => {\n const insideTooltip = this.el.contains(e.target as Element);\n if (!insideTooltip) {\n this.el.removeAttribute('open');\n }\n });\n }\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { TreeNavController } from './tree.js';\n\nexport class SelectNavController {\n constructor(private el: Element) {\n this.el.addEventListener('change', e => {\n const target = e.target as HTMLSelectElement;\n let href = target.value;\n if (!target.value.startsWith('/')) {\n href = '/' + href;\n }\n window.location.href = href;\n });\n }\n}\n\nexport function makeSelectNav(tree: TreeNavController): HTMLLabelElement {\n const label = document.createElement('label');\n label.classList.add('go-Label');\n label.setAttribute('aria-label', 'Menu');\n const select = document.createElement('select');\n select.classList.add('go-Select', 'js-selectNav');\n label.appendChild(select);\n const outline = document.createElement('optgroup');\n outline.label = 'Outline';\n select.appendChild(outline);\n const groupMap: Record<string, HTMLOptGroupElement> = {};\n let group: HTMLOptGroupElement;\n for (const t of tree.treeitems) {\n if (Number(t.depth) > 4) continue;\n if (t.groupTreeitem) {\n group = groupMap[t.groupTreeitem.label];\n if (!group) {\n group = groupMap[t.groupTreeitem.label] = document.createElement('optgroup');\n group.label = t.groupTreeitem.label;\n select.appendChild(group);\n }\n } else {\n group = outline;\n }\n const o = document.createElement('option');\n o.label = t.label;\n o.textContent = t.label;\n o.value = (t.el as HTMLAnchorElement).href.replace(window.location.origin, '').replace('/', '');\n group.appendChild(o);\n }\n tree.addObserver(t => {\n const hash = (t.el as HTMLAnchorElement).hash;\n const value = select.querySelector<HTMLOptionElement>(`[value$=\"${hash}\"]`)?.value;\n if (value) {\n select.value = value;\n }\n }, 50);\n return label;\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * ModalController registers a dialog element with the polyfill if\n * necessary for the current browser, add adds event listeners to\n * close and open modals.\n */\nexport class ModalController {\n constructor(private el: HTMLDialogElement) {\n // Only load the dialog polyfill if necessary for the environment.\n if (!window.HTMLDialogElement && !el.showModal) {\n import('../../../third_party/dialog-polyfill/dialog-polyfill.esm.js').then(\n ({ default: polyfill }) => {\n polyfill.registerDialog(el);\n }\n );\n }\n const id = el.id;\n const button = document.querySelector<HTMLButtonElement>(`[aria-controls=\"${id}\"]`);\n if (button) {\n button.addEventListener('click', () => {\n if (this.el.showModal) {\n this.el.showModal();\n } else {\n this.el.open = true;\n }\n el.querySelector('input')?.focus();\n });\n }\n for (const close of this.el.querySelectorAll<HTMLButtonElement>('[data-modal-close]')) {\n close.addEventListener('click', () => {\n if (this.el.close) {\n this.el.close();\n } else {\n this.el.open = false;\n }\n });\n }\n }\n}\n", "interface TagManagerEvent {\n /**\n * event is the name of the event, used to filter events in\n * Google Analytics.\n */\n event: string;\n\n /**\n * event_category is a name that you supply as a way to group objects\n * that to analyze. Typically, you will use the same category name\n * multiple times over related UI elements (buttons, links, etc).\n */\n event_category?: string;\n\n /**\n * event_action is used to name the type of event or interaction you\n * want to measure for a particular web object. For example, with a\n * single \"form\" category, you can analyze a number of specific events\n * with this parameter, such as: form entered, form submitted.\n */\n event_action?: string;\n\n /**\n * event_label provide additional information for events that you want\n * to analyze, such as the text label of a link.\n */\n event_label?: string;\n\n /**\n * gtm.start is used to initialize Google Tag Manager.\n */\n 'gtm.start'?: number;\n}\n\n// eslint-disable-next-line @typescript-eslint/no-unused-vars\ndeclare global {\n interface Window {\n dataLayer?: (TagManagerEvent | VoidFunction)[];\n ga?: unknown;\n }\n}\n\n/**\n * track sends events to Google Tag Manager.\n */\nexport function track(\n event: string | TagManagerEvent,\n category?: string,\n action?: string,\n label?: string\n): void {\n window.dataLayer ??= [];\n if (typeof event === 'string') {\n window.dataLayer.push({\n event,\n event_category: category,\n event_action: action,\n event_label: label,\n });\n } else {\n window.dataLayer.push(event);\n }\n}\n\n/**\n * func adds functions to run sequentionally after\n * Google Tag Manager is ready.\n */\nexport function func(fn: () => void): void {\n window.dataLayer ??= [];\n window.dataLayer.push(fn);\n}\n", "/*!\n * @license\n * Copyright 2019-2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { track } from '../analytics/analytics';\n\n/**\n * Options are keyhandler callback options.\n */\ninterface Options {\n /**\n * target is the element the key event should filter on. The\n * default target is the document.\n */\n target?: Element;\n\n /**\n * withMeta specifies if the event callback should fire when\n * the key is pressed with a meta key (ctrl, alt, etc). By\n * default meta keypresses are ignored.\n */\n withMeta?: boolean;\n}\n\n/**\n * KeyHandler is the config for a keyboard event callback.\n */\ninterface KeyHandler extends Options {\n description: string;\n callback: (e: KeyboardEvent) => void;\n}\n\n/**\n * KeyboardController controls event callbacks for sitewide\n * keyboard events. Multiple callbacks can be registered for\n * a single key and by default the controller ignores events\n * for text input targets.\n */\nclass KeyboardController {\n handlers: Record<string, Set<KeyHandler>>;\n\n constructor() {\n this.handlers = {};\n document.addEventListener('keydown', e => this.handleKeyPress(e));\n }\n\n /**\n * on registers keyboard event callbacks.\n * @param key the key to register.\n * @param description name of the event.\n * @param callback event callback.\n * @param options set target and withMeta options to override the default behaviors.\n */\n on(key: string, description: string, callback: (e: KeyboardEvent) => void, options?: Options) {\n this.handlers[key] ??= new Set();\n this.handlers[key].add({ description, callback, ...options });\n return this;\n }\n\n private handleKeyPress(e: KeyboardEvent) {\n for (const handler of this.handlers[e.key.toLowerCase()] ?? new Set()) {\n if (handler.target && handler.target !== e.target) {\n return;\n }\n const t = e.target as HTMLElement | null;\n if (\n !handler.target &&\n (t?.tagName === 'INPUT' || t?.tagName === 'SELECT' || t?.tagName === 'TEXTAREA')\n ) {\n return;\n }\n if (t?.isContentEditable) {\n return;\n }\n if (\n (handler.withMeta && !(e.ctrlKey || e.metaKey)) ||\n (!handler.withMeta && (e.ctrlKey || e.metaKey))\n ) {\n return;\n }\n track('keypress', 'hotkeys', `${e.key} pressed`, handler.description);\n handler.callback(e);\n }\n }\n}\n\nexport const keyboard = new KeyboardController();\n", "/**\n * @license\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport './header/header';\nimport { ClipboardController } from './clipboard/clipboard';\nimport { ToolTipController } from './tooltip/tooltip';\nimport { SelectNavController } from './outline/select';\nimport { ModalController } from './modal/modal';\n\nexport { keyboard } from './keyboard/keyboard';\nexport * as analytics from './analytics/analytics';\n\nfor (const el of document.querySelectorAll<HTMLButtonElement>('.js-clipboard')) {\n new ClipboardController(el);\n}\n\nfor (const el of document.querySelectorAll<HTMLDialogElement>('.js-modal')) {\n new ModalController(el);\n}\n\nfor (const t of document.querySelectorAll<HTMLDetailsElement>('.js-tooltip')) {\n new ToolTipController(t);\n}\n\nfor (const el of document.querySelectorAll<HTMLSelectElement>('.js-selectNav')) {\n new SelectNavController(el);\n}\n", "/**\n * @license\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { analytics, keyboard } from '../shared/shared';\n\n// Temporary shortcut for testing out the dark theme.\nkeyboard.on('t', 'toggle theme', () => {\n let nextTheme = 'dark';\n const theme = document.documentElement.getAttribute('data-theme');\n if (theme === 'dark') {\n nextTheme = 'light';\n } else if (theme === 'light') {\n nextTheme = 'auto';\n }\n document.documentElement.setAttribute('data-theme', nextTheme);\n document.cookie = `prefers-color-scheme=${nextTheme};path=/;max-age=31536000;`;\n});\n\n// Pressing '/' focuses the search box\nkeyboard.on('/', 'focus search', e => {\n const searchInput = Array.from(\n document.querySelectorAll<HTMLInputElement>('.js-searchFocus')\n ).pop();\n // Favoring the Firefox quick find feature over search input\n // focus. See: https://github.com/golang/go/issues/41093.\n if (searchInput && !window.navigator.userAgent.includes('Firefox')) {\n e.preventDefault();\n searchInput.focus();\n }\n});\n\n// Pressing 'y' changes the browser URL to the canonical URL\n// without triggering a reload.\nkeyboard.on('y', 'set canonical url', () => {\n const canonicalURLPath = document.querySelector<HTMLDivElement>('.js-canonicalURLPath')?.dataset[\n 'canonicalUrlPath'\n ];\n if (canonicalURLPath && canonicalURLPath !== '') {\n window.history.replaceState(null, '', canonicalURLPath);\n }\n});\n\n/**\n * setupGoogleTagManager intializes Google Tag Manager.\n */\n(function setupGoogleTagManager() {\n analytics.track({\n 'gtm.start': new Date().getTime(),\n event: 'gtm.js',\n });\n})();\n\n/**\n * removeUTMSource removes the utm_source GET parameter if present.\n * This is done using JavaScript, so that the utm_source is still\n * captured by Google Analytics.\n */\nfunction removeUTMSource() {\n const urlParams = new URLSearchParams(window.location.search);\n const utmSource = urlParams.get('utm_source');\n if (utmSource !== 'gopls' && utmSource !== 'godoc' && utmSource !== 'pkggodev') {\n return;\n }\n\n /** Strip the utm_source query parameter and replace the URL. **/\n const newURL = new URL(window.location.href);\n urlParams.delete('utm_source');\n newURL.search = urlParams.toString();\n window.history.replaceState(null, '', newURL.toString());\n}\n\nif (document.querySelector<HTMLElement>('.js-gtmID')?.dataset.gtmid && window.dataLayer) {\n analytics.func(function () {\n removeUTMSource();\n });\n} else {\n removeUTMSource();\n}\n"],
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diff --git a/static/frontend/styleguide/styleguide.js b/static/frontend/styleguide/styleguide.js
index 9c16fcb..5ce01b1 100644
--- a/static/frontend/styleguide/styleguide.js
+++ b/static/frontend/styleguide/styleguide.js
@@ -1,4 +1,4 @@
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e=this.el;this.isExpandable&&(e=(t=e.firstElementChild)!=null?t:e),e.classList.add("focus")}handleBlur(){var t;let e=this.el;this.isExpandable&&(e=(t=e.firstElementChild)!=null?t:e),e.classList.remove("focus")}handleKeydown(e){if(e.altKey||e.ctrlKey||e.metaKey)return;let t=!1;switch(e.key){case" ":case"Enter":this.isExpandable?(this.isExpanded()&&this.isSelected()?this.tree.collapseTreeitem(this):this.tree.expandTreeitem(this),t=!0):e.stopPropagation(),this.tree.setSelected(this);break;case"ArrowUp":this.tree.setFocusToPreviousItem(this),t=!0;break;case"ArrowDown":this.tree.setFocusToNextItem(this),t=!0;break;case"ArrowRight":this.isExpandable&&(this.isExpanded()?this.tree.setFocusToNextItem(this):this.tree.expandTreeitem(this)),t=!0;break;case"ArrowLeft":this.isExpandable&&this.isExpanded()?(this.tree.collapseTreeitem(this),t=!0):this.isInGroup&&(this.tree.setFocusToParentItem(this),t=!0);break;case"Home":this.tree.setFocusToFirstItem(),t=!0;break;case"End":this.tree.setFocusToLastItem(),t=!0;break;default:e.key.length===1&&e.key.match(/\S/)&&(e.key=="*"?this.tree.expandAllSiblingItems(this):this.tree.setFocusByFirstCharacter(this,e.key),t=!0);break}t&&(e.stopPropagation(),e.preventDefault())}};function b(l,e){let t;return(...i)=>{let s=()=>{t=null,l(...i)};t&&clearTimeout(t),t=setTimeout(s,e)}}window.addEventListener("load",()=>{var t,i;let l=document.querySelector(".js-tree");if(l){let s=new c(l),r=u(s);(t=document.querySelector(".js-mainNavMobile"))==null||t.appendChild(r)}let e=document.querySelector(".Outline .js-tree");if(e){let s=new c(e),r=u(s);(i=document.querySelector(".Outline .js-select"))==null||i.appendChild(r)}for(let s of document.querySelectorAll(".js-toggleTheme"))s.addEventListener("click",r=>{let n=r.currentTarget.getAttribute("data-value");document.documentElement.setAttribute("data-theme",String(n))});for(let s of document.querySelectorAll(".js-toggleLayout"))s.addEventListener("click",r=>{let n=r.currentTarget.getAttribute("data-value");document.documentElement.setAttribute("data-layout",String(n))});for(let s of document.querySelectorAll(".js-selectNav"))new h(s)});customElements.define("go-color",class extends HTMLElement{constructor(){super();var e;this.style.setProperty("display","contents");let l=this.id;this.removeAttribute("id"),this.innerHTML=`
+var h=class{constructor(e){this.el=e;this.el.addEventListener("change",t=>{let i=t.target,s=i.value;i.value.startsWith("/")||(s="/"+s),window.location.href=s})}};function u(l){let e=document.createElement("label");e.classList.add("go-Label"),e.setAttribute("aria-label","Menu");let t=document.createElement("select");t.classList.add("go-Select","js-selectNav"),e.appendChild(t);let i=document.createElement("optgroup");i.label="Outline",t.appendChild(i);let s={},r;for(let n of l.treeitems){if(Number(n.depth)>4)continue;n.groupTreeitem?(r=s[n.groupTreeitem.label],r||(r=s[n.groupTreeitem.label]=document.createElement("optgroup"),r.label=n.groupTreeitem.label,t.appendChild(r))):r=i;let a=document.createElement("option");a.label=n.label,a.textContent=n.label,a.value=n.el.href.replace(window.location.origin,"").replace("/",""),r.appendChild(a)}return l.addObserver(n=>{var d;let a=n.el.hash,o=(d=t.querySelector(`[value$="${a}"]`))==null?void 0:d.value;o&&(t.value=o)},50),e}var c=class{constructor(e){this.el=e;this.handleResize=()=>{this.el.style.setProperty("--js-tree-height","100vh"),this.el.style.setProperty("--js-tree-height",this.el.clientHeight+"px")};this.treeitems=[],this.firstChars=[],this.firstTreeitem=null,this.lastTreeitem=null,this.observerCallbacks=[],this.init()}init(){this.handleResize(),window.addEventListener("resize",this.handleResize),this.findTreeItems(),this.updateVisibleTreeitems(),this.observeTargets(),this.firstTreeitem&&(this.firstTreeitem.el.tabIndex=0)}observeTargets(){this.addObserver(i=>{this.expandTreeitem(i),this.setSelected(i)});let e=new Map,t=new IntersectionObserver(i=>{for(let s of i)e.set(s.target.id,s.isIntersecting||s.intersectionRatio===1);for(let[s,r]of e)if(r){let n=this.treeitems.find(a=>{var o;return(o=a.el)==null?void 0:o.href.endsWith(`#${s}`)});if(n)for(let a of this.observerCallbacks)a(n);break}},{threshold:1,rootMargin:"-60px 0px 0px 0px"});for(let i of this.treeitems.map(s=>s.el.getAttribute("href")))if(i){let s=i.replace(window.location.origin,"").replace("/","").replace("#",""),r=document.getElementById(s);r&&t.observe(r)}}addObserver(e,t=200){this.observerCallbacks.push(b(e,t))}setFocusToNextItem(e){let t=null;for(let i=e.index+1;i<this.treeitems.length;i++){let s=this.treeitems[i];if(s.isVisible){t=s;break}}t&&this.setFocusToItem(t)}setFocusToPreviousItem(e){let t=null;for(let i=e.index-1;i>-1;i--){let s=this.treeitems[i];if(s.isVisible){t=s;break}}t&&this.setFocusToItem(t)}setFocusToParentItem(e){e.groupTreeitem&&this.setFocusToItem(e.groupTreeitem)}setFocusToFirstItem(){this.firstTreeitem&&this.setFocusToItem(this.firstTreeitem)}setFocusToLastItem(){this.lastTreeitem&&this.setFocusToItem(this.lastTreeitem)}setSelected(e){var t;for(let i of this.el.querySelectorAll('[aria-expanded="true"]'))i!==e.el&&(((t=i.nextElementSibling)==null?void 0:t.contains(e.el))||i.setAttribute("aria-expanded","false"));for(let i of this.el.querySelectorAll("[aria-selected]"))i!==e.el&&i.setAttribute("aria-selected","false");e.el.setAttribute("aria-selected","true"),this.updateVisibleTreeitems(),this.setFocusToItem(e,!1)}expandTreeitem(e){let t=e;for(;t;)t.isExpandable&&t.el.setAttribute("aria-expanded","true"),t=t.groupTreeitem;this.updateVisibleTreeitems()}expandAllSiblingItems(e){for(let t of this.treeitems)t.groupTreeitem===e.groupTreeitem&&t.isExpandable&&this.expandTreeitem(t)}collapseTreeitem(e){let t=null;e.isExpanded()?t=e:t=e.groupTreeitem,t&&(t.el.setAttribute("aria-expanded","false"),this.updateVisibleTreeitems(),this.setFocusToItem(t))}setFocusByFirstCharacter(e,t){let i,s;t=t.toLowerCase(),i=e.index+1,i===this.treeitems.length&&(i=0),s=this.getIndexFirstChars(i,t),s===-1&&(s=this.getIndexFirstChars(0,t)),s>-1&&this.setFocusToItem(this.treeitems[s])}findTreeItems(){let e=(t,i)=>{let s=i,r=t.firstElementChild;for(;r;)(r.tagName==="A"||r.tagName==="SPAN")&&(s=new f(r,this,i),this.treeitems.push(s),this.firstChars.push(s.label.substring(0,1).toLowerCase())),r.firstElementChild&&e(r,s),r=r.nextElementSibling};e(this.el,null),this.treeitems.map((t,i)=>t.index=i)}updateVisibleTreeitems(){this.firstTreeitem=this.treeitems[0];for(let e of this.treeitems){let t=e.groupTreeitem;for(e.isVisible=!0;t&&t.el!==this.el;)t.isExpanded()||(e.isVisible=!1),t=t.groupTreeitem;e.isVisible&&(this.lastTreeitem=e)}}setFocusToItem(e,t=!0){e.el.tabIndex=0,t&&e.el.focus();for(let i of this.treeitems)i!==e&&(i.el.tabIndex=-1)}getIndexFirstChars(e,t){for(let i=e;i<this.firstChars.length;i++)if(this.treeitems[i].isVisible&&t===this.firstChars[i])return i;return-1}},f=class{constructor(e,t,i){var n,a,o,d,m;e.tabIndex=-1,this.el=e,this.groupTreeitem=i,this.label=(a=(n=e.textContent)==null?void 0:n.trim())!=null?a:"",this.tree=t,this.depth=((i==null?void 0:i.depth)||0)+1,this.index=0;let s=e.parentElement;(s==null?void 0:s.tagName.toLowerCase())==="li"&&(s==null||s.setAttribute("role","none")),e.setAttribute("aria-level",this.depth+""),e.getAttribute("aria-label")&&(this.label=(d=(o=e==null?void 0:e.getAttribute("aria-label"))==null?void 0:o.trim())!=null?d:""),this.isExpandable=!1,this.isVisible=!1,this.isInGroup=!!i;let r=e.nextElementSibling;for(;r;){if(r.tagName.toLowerCase()=="ul"){let p=`${(m=i==null?void 0:i.label)!=null?m:""} nav group ${this.label}`.replace(/[\W_]+/g,"_");e.setAttribute("aria-owns",p),e.setAttribute("aria-expanded","false"),r.setAttribute("role","group"),r.setAttribute("id",p),this.isExpandable=!0;break}r=r.nextElementSibling}this.init()}init(){this.el.tabIndex=-1,this.el.getAttribute("role")||this.el.setAttribute("role","treeitem"),this.el.addEventListener("keydown",this.handleKeydown.bind(this)),this.el.addEventListener("click",this.handleClick.bind(this)),this.el.addEventListener("focus",this.handleFocus.bind(this)),this.el.addEventListener("blur",this.handleBlur.bind(this))}isExpanded(){return this.isExpandable?this.el.getAttribute("aria-expanded")==="true":!1}isSelected(){return this.el.getAttribute("aria-selected")==="true"}handleClick(e){e.target!==this.el&&e.target!==this.el.firstElementChild||(this.isExpandable&&(this.isExpanded()&&this.isSelected()?this.tree.collapseTreeitem(this):this.tree.expandTreeitem(this),e.stopPropagation()),this.tree.setSelected(this))}handleFocus(){var t;let e=this.el;this.isExpandable&&(e=(t=e.firstElementChild)!=null?t:e),e.classList.add("focus")}handleBlur(){var t;let e=this.el;this.isExpandable&&(e=(t=e.firstElementChild)!=null?t:e),e.classList.remove("focus")}handleKeydown(e){if(e.altKey||e.ctrlKey||e.metaKey)return;let t=!1;switch(e.key){case" ":case"Enter":this.isExpandable?(this.isExpanded()&&this.isSelected()?this.tree.collapseTreeitem(this):this.tree.expandTreeitem(this),t=!0):e.stopPropagation(),this.tree.setSelected(this);break;case"ArrowUp":this.tree.setFocusToPreviousItem(this),t=!0;break;case"ArrowDown":this.tree.setFocusToNextItem(this),t=!0;break;case"ArrowRight":this.isExpandable&&(this.isExpanded()?this.tree.setFocusToNextItem(this):this.tree.expandTreeitem(this)),t=!0;break;case"ArrowLeft":this.isExpandable&&this.isExpanded()?(this.tree.collapseTreeitem(this),t=!0):this.isInGroup&&(this.tree.setFocusToParentItem(this),t=!0);break;case"Home":this.tree.setFocusToFirstItem(),t=!0;break;case"End":this.tree.setFocusToLastItem(),t=!0;break;default:e.key.length===1&&e.key.match(/\S/)&&(e.key=="*"?this.tree.expandAllSiblingItems(this):this.tree.setFocusByFirstCharacter(this,e.key),t=!0);break}t&&(e.stopPropagation(),e.preventDefault())}};function b(l,e){let t;return(...i)=>{let s=()=>{t=null,l(...i)};t&&clearTimeout(t),t=setTimeout(s,e)}}window.addEventListener("load",()=>{var t,i;let l=document.querySelector(".js-tree");if(l){let s=new c(l),r=u(s);(t=document.querySelector(".js-mainNavMobile"))==null||t.appendChild(r)}let e=document.querySelector(".Outline .js-tree");if(e){let s=new c(e),r=u(s);(i=document.querySelector(".Outline .js-select"))==null||i.appendChild(r)}for(let s of document.querySelectorAll(".js-toggleTheme"))s.addEventListener("click",r=>{let n=r.currentTarget.getAttribute("data-value");document.documentElement.setAttribute("data-theme",String(n))});for(let s of document.querySelectorAll(".js-toggleLayout"))s.addEventListener("click",r=>{let n=r.currentTarget.getAttribute("data-value");document.documentElement.setAttribute("data-layout",String(n))});for(let s of document.querySelectorAll(".js-selectNav"))new h(s)});customElements.define("go-color",class extends HTMLElement{constructor(){super();var e;this.style.setProperty("display","contents");let l=this.id;this.removeAttribute("id"),this.innerHTML=`
<div style="--color: var(${l});" class="GoColor-circle"></div>
<span>
<div id="${l}" class="go-textLabel GoColor-title">${l.replace("--color-","").replaceAll("-"," ")}</div>
@@ -12,7 +12,7 @@
<stringify-el collapsed>${e}</stringify-el>
`}});customElements.define("stringify-el",class extends HTMLElement{constructor(){super();var i;this.style.setProperty("display","contents");let l=this.innerHTML,e=this.id?` id="${this.id}"`:"";this.removeAttribute("id");let t='<pre class="StringifyElement-markup">'+g(T(l))+"</pre>";this.hasAttribute("collapsed")&&(t=`<details class="StringifyElement-details"><summary>Markup</summary>${t}</details>`),this.innerHTML=`<span${e}>${l}</span>${t}`,(i=this.querySelector("pre"))==null||i.addEventListener("click",()=>{navigator.clipboard.writeText(l)})}});function T(l){return l.split(`
`).reduce((e,t)=>{if(e.result.length===0){let i=t.indexOf("<");e.start=i===-1?0:i}return t=t.slice(e.start),t&&e.result.push(t),e},{result:[],start:0}).result.join(`
-`)}function g(l){var e;return(e=l==null?void 0:l.replaceAll("<","<"))==null?void 0:e.replaceAll(">",">")}})();
+`)}function g(l){var e;return(e=l==null?void 0:l.replaceAll("<","<"))==null?void 0:e.replaceAll(">",">")}
/**
* @license
* Copyright 2021 The Go Authors. All rights reserved.
diff --git a/static/frontend/styleguide/styleguide.js.map b/static/frontend/styleguide/styleguide.js.map
index b39c445..a67bb2a 100644
--- a/static/frontend/styleguide/styleguide.js.map
+++ b/static/frontend/styleguide/styleguide.js.map
@@ -2,6 +2,6 @@
"version": 3,
"sources": ["../../shared/outline/select.ts", "../../shared/outline/tree.ts", "styleguide.ts"],
"sourcesContent": ["/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { TreeNavController } from './tree.js';\n\nexport class SelectNavController {\n constructor(private el: Element) {\n this.el.addEventListener('change', e => {\n const target = e.target as HTMLSelectElement;\n let href = target.value;\n if (!target.value.startsWith('/')) {\n href = '/' + href;\n }\n window.location.href = href;\n });\n }\n}\n\nexport function makeSelectNav(tree: TreeNavController): HTMLLabelElement {\n const label = document.createElement('label');\n label.classList.add('go-Label');\n label.setAttribute('aria-label', 'Menu');\n const select = document.createElement('select');\n select.classList.add('go-Select', 'js-selectNav');\n label.appendChild(select);\n const outline = document.createElement('optgroup');\n outline.label = 'Outline';\n select.appendChild(outline);\n const groupMap: Record<string, HTMLOptGroupElement> = {};\n let group: HTMLOptGroupElement;\n for (const t of tree.treeitems) {\n if (Number(t.depth) > 4) continue;\n if (t.groupTreeitem) {\n group = groupMap[t.groupTreeitem.label];\n if (!group) {\n group = groupMap[t.groupTreeitem.label] = document.createElement('optgroup');\n group.label = t.groupTreeitem.label;\n select.appendChild(group);\n }\n } else {\n group = outline;\n }\n const o = document.createElement('option');\n o.label = t.label;\n o.textContent = t.label;\n o.value = (t.el as HTMLAnchorElement).href.replace(window.location.origin, '').replace('/', '');\n group.appendChild(o);\n }\n tree.addObserver(t => {\n const hash = (t.el as HTMLAnchorElement).hash;\n const value = select.querySelector<HTMLOptionElement>(`[value$=\"${hash}\"]`)?.value;\n if (value) {\n select.value = value;\n }\n }, 50);\n return label;\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * TreeNavController is the navigation tree component of the documentation page.\n * It adds accessiblity attributes to a tree, observes the heading elements\n * focus the topmost link for headings visible on the page, and implements the\n * WAI-ARIA Treeview Design Pattern with full\n * [keyboard support](https://www.w3.org/TR/wai-aria-practices/examples/treeview/treeview-2/treeview-2a.html#kbd_label).\n */\nexport class TreeNavController {\n treeitems: TreeItem[];\n\n /**\n * firstChars is the first character of each treeitem in the same order\n * as this.treeitems. We use this array to set focus by character when\n * navigating the tree with a keyboard.\n */\n private firstChars: string[];\n private firstTreeitem: TreeItem | null;\n private lastTreeitem: TreeItem | null;\n private observerCallbacks: ((t: TreeItem) => void)[];\n\n constructor(private el: HTMLElement) {\n this.treeitems = [];\n this.firstChars = [];\n this.firstTreeitem = null;\n this.lastTreeitem = null;\n this.observerCallbacks = [];\n this.init();\n }\n\n private init(): void {\n this.handleResize();\n window.addEventListener('resize', this.handleResize);\n this.findTreeItems();\n this.updateVisibleTreeitems();\n this.observeTargets();\n if (this.firstTreeitem) {\n this.firstTreeitem.el.tabIndex = 0;\n }\n }\n\n private handleResize = (): void => {\n this.el.style.setProperty('--js-tree-height', '100vh');\n this.el.style.setProperty('--js-tree-height', this.el.clientHeight + 'px');\n };\n\n private observeTargets() {\n this.addObserver(treeitem => {\n this.expandTreeitem(treeitem);\n this.setSelected(treeitem);\n // TODO: Fix scroll issue in https://golang.org/issue/47450.\n // treeitem.el.scrollIntoView({ block: 'nearest' });\n });\n\n const targets = new Map<string, boolean>();\n const observer = new IntersectionObserver(\n entries => {\n for (const entry of entries) {\n targets.set(entry.target.id, entry.isIntersecting || entry.intersectionRatio === 1);\n }\n for (const [id, isIntersecting] of targets) {\n if (isIntersecting) {\n const active = this.treeitems.find(t =>\n (t.el as HTMLAnchorElement)?.href.endsWith(`#${id}`)\n );\n if (active) {\n for (const fn of this.observerCallbacks) {\n fn(active);\n }\n }\n break;\n }\n }\n },\n {\n threshold: 1.0,\n rootMargin: '-60px 0px 0px 0px',\n }\n );\n\n for (const href of this.treeitems.map(t => t.el.getAttribute('href'))) {\n if (href) {\n const id = href.replace(window.location.origin, '').replace('/', '').replace('#', '');\n const target = document.getElementById(id);\n if (target) {\n observer.observe(target);\n }\n }\n }\n }\n\n addObserver(fn: (t: TreeItem) => void, delay = 200): void {\n this.observerCallbacks.push(debounce(fn, delay));\n }\n\n setFocusToNextItem(currentItem: TreeItem): void {\n let nextItem = null;\n for (let i = currentItem.index + 1; i < this.treeitems.length; i++) {\n const ti = this.treeitems[i];\n if (ti.isVisible) {\n nextItem = ti;\n break;\n }\n }\n if (nextItem) {\n this.setFocusToItem(nextItem);\n }\n }\n\n setFocusToPreviousItem(currentItem: TreeItem): void {\n let prevItem = null;\n for (let i = currentItem.index - 1; i > -1; i--) {\n const ti = this.treeitems[i];\n if (ti.isVisible) {\n prevItem = ti;\n break;\n }\n }\n if (prevItem) {\n this.setFocusToItem(prevItem);\n }\n }\n\n setFocusToParentItem(currentItem: TreeItem): void {\n if (currentItem.groupTreeitem) {\n this.setFocusToItem(currentItem.groupTreeitem);\n }\n }\n\n setFocusToFirstItem(): void {\n this.firstTreeitem && this.setFocusToItem(this.firstTreeitem);\n }\n\n setFocusToLastItem(): void {\n this.lastTreeitem && this.setFocusToItem(this.lastTreeitem);\n }\n\n setSelected(currentItem: TreeItem): void {\n for (const l1 of this.el.querySelectorAll('[aria-expanded=\"true\"]')) {\n if (l1 === currentItem.el) continue;\n if (!l1.nextElementSibling?.contains(currentItem.el)) {\n l1.setAttribute('aria-expanded', 'false');\n }\n }\n for (const l1 of this.el.querySelectorAll('[aria-selected]')) {\n if (l1 !== currentItem.el) {\n l1.setAttribute('aria-selected', 'false');\n }\n }\n currentItem.el.setAttribute('aria-selected', 'true');\n this.updateVisibleTreeitems();\n this.setFocusToItem(currentItem, false);\n }\n\n expandTreeitem(treeitem: TreeItem): void {\n let currentItem: TreeItem | null = treeitem;\n while (currentItem) {\n if (currentItem.isExpandable) {\n currentItem.el.setAttribute('aria-expanded', 'true');\n }\n currentItem = currentItem.groupTreeitem;\n }\n this.updateVisibleTreeitems();\n }\n\n expandAllSiblingItems(currentItem: TreeItem): void {\n for (const ti of this.treeitems) {\n if (ti.groupTreeitem === currentItem.groupTreeitem && ti.isExpandable) {\n this.expandTreeitem(ti);\n }\n }\n }\n\n collapseTreeitem(currentItem: TreeItem): void {\n let groupTreeitem = null;\n\n if (currentItem.isExpanded()) {\n groupTreeitem = currentItem;\n } else {\n groupTreeitem = currentItem.groupTreeitem;\n }\n\n if (groupTreeitem) {\n groupTreeitem.el.setAttribute('aria-expanded', 'false');\n this.updateVisibleTreeitems();\n this.setFocusToItem(groupTreeitem);\n }\n }\n\n setFocusByFirstCharacter(currentItem: TreeItem, char: string): void {\n let start: number, index: number;\n char = char.toLowerCase();\n\n // Get start index for search based on position of currentItem\n start = currentItem.index + 1;\n if (start === this.treeitems.length) {\n start = 0;\n }\n\n // Check remaining slots in the menu\n index = this.getIndexFirstChars(start, char);\n\n // If not found in remaining slots, check from beginning\n if (index === -1) {\n index = this.getIndexFirstChars(0, char);\n }\n\n // If match was found...\n if (index > -1) {\n this.setFocusToItem(this.treeitems[index]);\n }\n }\n\n private findTreeItems() {\n const findItems = (el: HTMLElement, group: TreeItem | null) => {\n let ti = group;\n let curr = el.firstElementChild as HTMLElement;\n while (curr) {\n if (curr.tagName === 'A' || curr.tagName === 'SPAN') {\n ti = new TreeItem(curr, this, group);\n this.treeitems.push(ti);\n this.firstChars.push(ti.label.substring(0, 1).toLowerCase());\n }\n if (curr.firstElementChild) {\n findItems(curr, ti);\n }\n curr = curr.nextElementSibling as HTMLElement;\n }\n };\n findItems(this.el as HTMLElement, null);\n this.treeitems.map((ti, idx) => (ti.index = idx));\n }\n\n private updateVisibleTreeitems(): void {\n this.firstTreeitem = this.treeitems[0];\n\n for (const ti of this.treeitems) {\n let parent = ti.groupTreeitem;\n ti.isVisible = true;\n while (parent && parent.el !== this.el) {\n if (!parent.isExpanded()) {\n ti.isVisible = false;\n }\n parent = parent.groupTreeitem;\n }\n if (ti.isVisible) {\n this.lastTreeitem = ti;\n }\n }\n }\n\n private setFocusToItem(treeitem: TreeItem, focusEl = true) {\n treeitem.el.tabIndex = 0;\n if (focusEl) {\n treeitem.el.focus();\n }\n for (const ti of this.treeitems) {\n if (ti !== treeitem) {\n ti.el.tabIndex = -1;\n }\n }\n }\n\n private getIndexFirstChars(startIndex: number, char: string): number {\n for (let i = startIndex; i < this.firstChars.length; i++) {\n if (this.treeitems[i].isVisible && char === this.firstChars[i]) {\n return i;\n }\n }\n return -1;\n }\n}\n\nclass TreeItem {\n el: HTMLElement;\n groupTreeitem: TreeItem | null;\n label: string;\n isExpandable: boolean;\n isVisible: boolean;\n depth: number;\n index: number;\n\n private tree: TreeNavController;\n private isInGroup: boolean;\n\n constructor(el: HTMLElement, treeObj: TreeNavController, group: TreeItem | null) {\n el.tabIndex = -1;\n this.el = el;\n this.groupTreeitem = group;\n this.label = el.textContent?.trim() ?? '';\n this.tree = treeObj;\n this.depth = (group?.depth || 0) + 1;\n this.index = 0;\n\n const parent = el.parentElement;\n if (parent?.tagName.toLowerCase() === 'li') {\n parent?.setAttribute('role', 'none');\n }\n el.setAttribute('aria-level', this.depth + '');\n if (el.getAttribute('aria-label')) {\n this.label = el?.getAttribute('aria-label')?.trim() ?? '';\n }\n\n this.isExpandable = false;\n this.isVisible = false;\n this.isInGroup = !!group;\n\n let curr = el.nextElementSibling;\n while (curr) {\n if (curr.tagName.toLowerCase() == 'ul') {\n const groupId = `${group?.label ?? ''} nav group ${this.label}`.replace(/[\\W_]+/g, '_');\n el.setAttribute('aria-owns', groupId);\n el.setAttribute('aria-expanded', 'false');\n curr.setAttribute('role', 'group');\n curr.setAttribute('id', groupId);\n this.isExpandable = true;\n break;\n }\n\n curr = curr.nextElementSibling;\n }\n this.init();\n }\n\n private init() {\n this.el.tabIndex = -1;\n if (!this.el.getAttribute('role')) {\n this.el.setAttribute('role', 'treeitem');\n }\n this.el.addEventListener('keydown', this.handleKeydown.bind(this));\n this.el.addEventListener('click', this.handleClick.bind(this));\n this.el.addEventListener('focus', this.handleFocus.bind(this));\n this.el.addEventListener('blur', this.handleBlur.bind(this));\n }\n\n isExpanded() {\n if (this.isExpandable) {\n return this.el.getAttribute('aria-expanded') === 'true';\n }\n\n return false;\n }\n\n isSelected() {\n return this.el.getAttribute('aria-selected') === 'true';\n }\n\n private handleClick(event: MouseEvent) {\n // only process click events that directly happened on this treeitem\n if (event.target !== this.el && event.target !== this.el.firstElementChild) {\n return;\n }\n if (this.isExpandable) {\n if (this.isExpanded() && this.isSelected()) {\n this.tree.collapseTreeitem(this);\n } else {\n this.tree.expandTreeitem(this);\n }\n event.stopPropagation();\n }\n this.tree.setSelected(this);\n }\n\n private handleFocus() {\n let el = this.el;\n if (this.isExpandable) {\n el = (el.firstElementChild as HTMLElement) ?? el;\n }\n el.classList.add('focus');\n }\n\n private handleBlur() {\n let el = this.el;\n if (this.isExpandable) {\n el = (el.firstElementChild as HTMLElement) ?? el;\n }\n el.classList.remove('focus');\n }\n\n private handleKeydown(event: KeyboardEvent) {\n if (event.altKey || event.ctrlKey || event.metaKey) {\n return;\n }\n\n let captured = false;\n switch (event.key) {\n case ' ':\n case 'Enter':\n if (this.isExpandable) {\n if (this.isExpanded() && this.isSelected()) {\n this.tree.collapseTreeitem(this);\n } else {\n this.tree.expandTreeitem(this);\n }\n captured = true;\n } else {\n event.stopPropagation();\n }\n this.tree.setSelected(this);\n break;\n\n case 'ArrowUp':\n this.tree.setFocusToPreviousItem(this);\n captured = true;\n break;\n\n case 'ArrowDown':\n this.tree.setFocusToNextItem(this);\n captured = true;\n break;\n\n case 'ArrowRight':\n if (this.isExpandable) {\n if (this.isExpanded()) {\n this.tree.setFocusToNextItem(this);\n } else {\n this.tree.expandTreeitem(this);\n }\n }\n captured = true;\n break;\n\n case 'ArrowLeft':\n if (this.isExpandable && this.isExpanded()) {\n this.tree.collapseTreeitem(this);\n captured = true;\n } else {\n if (this.isInGroup) {\n this.tree.setFocusToParentItem(this);\n captured = true;\n }\n }\n break;\n\n case 'Home':\n this.tree.setFocusToFirstItem();\n captured = true;\n break;\n\n case 'End':\n this.tree.setFocusToLastItem();\n captured = true;\n break;\n\n default:\n if (event.key.length === 1 && event.key.match(/\\S/)) {\n if (event.key == '*') {\n this.tree.expandAllSiblingItems(this);\n } else {\n this.tree.setFocusByFirstCharacter(this, event.key);\n }\n captured = true;\n }\n break;\n }\n\n if (captured) {\n event.stopPropagation();\n event.preventDefault();\n }\n }\n}\n\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nfunction debounce<T extends (...args: any[]) => any>(func: T, wait: number) {\n let timeout: ReturnType<typeof setTimeout> | null;\n return (...args: Parameters<T>) => {\n const later = () => {\n timeout = null;\n func(...args);\n };\n if (timeout) {\n clearTimeout(timeout);\n }\n timeout = setTimeout(later, wait);\n };\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { SelectNavController, makeSelectNav } from '../../shared/outline/select';\nimport { TreeNavController } from '../../shared/outline/tree';\n\nwindow.addEventListener('load', () => {\n const tree = document.querySelector<HTMLElement>('.js-tree');\n if (tree) {\n const treeCtrl = new TreeNavController(tree);\n const select = makeSelectNav(treeCtrl);\n document.querySelector('.js-mainNavMobile')?.appendChild(select);\n }\n\n const guideTree = document.querySelector<HTMLElement>('.Outline .js-tree');\n if (guideTree) {\n const treeCtrl = new TreeNavController(guideTree);\n const select = makeSelectNav(treeCtrl);\n document.querySelector('.Outline .js-select')?.appendChild(select);\n }\n\n for (const el of document.querySelectorAll('.js-toggleTheme')) {\n el.addEventListener('click', e => {\n const value = (e.currentTarget as HTMLButtonElement).getAttribute('data-value');\n document.documentElement.setAttribute('data-theme', String(value));\n });\n }\n for (const el of document.querySelectorAll('.js-toggleLayout')) {\n el.addEventListener('click', e => {\n const value = (e.currentTarget as HTMLButtonElement).getAttribute('data-value');\n document.documentElement.setAttribute('data-layout', String(value));\n });\n }\n\n for (const el of document.querySelectorAll<HTMLSelectElement>('.js-selectNav')) {\n new SelectNavController(el);\n }\n});\n\ncustomElements.define(\n 'go-color',\n class extends HTMLElement {\n constructor() {\n super();\n this.style.setProperty('display', 'contents');\n // The current version of TypeScript is not aware of String.replaceAll.\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n const name = this.id as any;\n this.removeAttribute('id');\n this.innerHTML = `\n <div style=\"--color: var(${name});\" class=\"GoColor-circle\"></div>\n <span>\n <div id=\"${name}\" class=\"go-textLabel GoColor-title\">${name\n .replace('--color-', '')\n .replaceAll('-', ' ')}</div>\n <pre class=\"StringifyElement-markup\">var(${name})</pre>\n </span>\n `;\n this.querySelector('pre')?.addEventListener('click', () => {\n navigator.clipboard.writeText(`var(${name})`);\n });\n }\n }\n);\n\ncustomElements.define(\n 'go-icon',\n class extends HTMLElement {\n constructor() {\n super();\n this.style.setProperty('display', 'contents');\n // The current version of TypeScript is not aware of String.replaceAll.\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n const name = this.getAttribute('name') as any;\n this.innerHTML = `<p id=\"icon-${name}\" class=\"go-textLabel GoIcon-title\">${name.replaceAll(\n '_',\n ' '\n )}</p>\n <stringify-el>\n <img class=\"go-Icon\" height=\"24\" width=\"24\" src=\"/static/shared/icon/${name}_gm_grey_24dp.svg\" alt=\"\">\n </stringify-el>\n `;\n }\n }\n);\n\ncustomElements.define(\n 'clone-el',\n class extends HTMLElement {\n constructor() {\n super();\n this.style.setProperty('display', 'contents');\n const selector = this.getAttribute('selector');\n if (!selector) return;\n const html = ' ' + document.querySelector(selector)?.outerHTML;\n this.innerHTML = `\n <stringify-el collapsed>${html}</stringify-el>\n `;\n }\n }\n);\n\ncustomElements.define(\n 'stringify-el',\n class extends HTMLElement {\n constructor() {\n super();\n this.style.setProperty('display', 'contents');\n const html = this.innerHTML;\n const idAttr = this.id ? ` id=\"${this.id}\"` : '';\n this.removeAttribute('id');\n let markup = `<pre class=\"StringifyElement-markup\">` + escape(trim(html)) + `</pre>`;\n if (this.hasAttribute('collapsed')) {\n markup = `<details class=\"StringifyElement-details\"><summary>Markup</summary>${markup}</details>`;\n }\n this.innerHTML = `<span${idAttr}>${html}</span>${markup}`;\n this.querySelector('pre')?.addEventListener('click', () => {\n navigator.clipboard.writeText(html);\n });\n }\n }\n);\n\n/**\n * trim removes excess indentation from html markup by\n * measuring the number of spaces in the first line of\n * the given string and removing that number of spaces\n * from the beginning of each line.\n */\nfunction trim(html: string) {\n return html\n .split('\\n')\n .reduce<{ result: string[]; start: number }>(\n (acc, val) => {\n if (acc.result.length === 0) {\n const start = val.indexOf('<');\n acc.start = start === -1 ? 0 : start;\n }\n val = val.slice(acc.start);\n if (val) {\n acc.result.push(val);\n }\n return acc;\n },\n { result: [], start: 0 }\n )\n .result.join('\\n');\n}\n\nfunction escape(html: string) {\n // The current version of TypeScript is not aware of String.replaceAll.\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n return (html as any)?.replaceAll('<', '<')?.replaceAll('>', '>');\n}\n"],
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index 07ba302..2d31509 100644
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r=this.treeitems[i];if(r.isVisible){t=r;break}}t&&this.setFocusToItem(t)}setFocusToParentItem(e){e.groupTreeitem&&this.setFocusToItem(e.groupTreeitem)}setFocusToFirstItem(){this.firstTreeitem&&this.setFocusToItem(this.firstTreeitem)}setFocusToLastItem(){this.lastTreeitem&&this.setFocusToItem(this.lastTreeitem)}setSelected(e){var t;for(let i of this.el.querySelectorAll('[aria-expanded="true"]'))i!==e.el&&(((t=i.nextElementSibling)==null?void 0:t.contains(e.el))||i.setAttribute("aria-expanded","false"));for(let i of this.el.querySelectorAll("[aria-selected]"))i!==e.el&&i.setAttribute("aria-selected","false");e.el.setAttribute("aria-selected","true"),this.updateVisibleTreeitems(),this.setFocusToItem(e,!1)}expandTreeitem(e){let t=e;for(;t;)t.isExpandable&&t.el.setAttribute("aria-expanded","true"),t=t.groupTreeitem;this.updateVisibleTreeitems()}expandAllSiblingItems(e){for(let t of 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/*!
* @license
* Copyright 2019-2020 The Go Authors. All rights reserved.
diff --git a/static/frontend/unit/main/main.js.map b/static/frontend/unit/main/main.js.map
index 5352335..445e6f6 100644
--- a/static/frontend/unit/main/main.js.map
+++ b/static/frontend/unit/main/main.js.map
@@ -1,7 +1,7 @@
{
"version": 3,
"sources": ["../../../shared/jump/jump.ts", "../../../shared/playground/playground.ts", "../../../shared/outline/select.ts", "../../../shared/outline/tree.ts", "../../../shared/table/table.ts", "main.ts"],
- "sourcesContent": ["/*!\n * @license\n * Copyright 2019-2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n// This file implements the behavior of the \"jump to symbol\" dialog for Go\n// package documentation, as well as the simple dialog that displays keyboard\n// shortcuts.\n\n// The DOM for the dialogs is at the bottom of static/frontend/unit/main/_modals.tmpl.\n// The CSS is in static/frontend/unit/main/_modals.css.\n\n// The dialog is activated by pressing the 'f' key. It presents a list\n// (#JumpDialog-list) of all Go symbols displayed in the documentation.\n// Entering text in the dialog's text box (#JumpDialog-filter) restricts the\n// list to symbols containing the text. Clicking on an symbol jumps to\n// its documentation.\n\n// This code is based on\n// https://go.googlesource.com/gddo/+/refs/heads/master/gddo-server/assets/site.js.\n// It was modified to remove the dependence on jquery and bootstrap.\n\nconst jumpDialog = document.querySelector<HTMLDialogElement>('.JumpDialog');\nconst jumpBody = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-body');\nconst jumpList = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-list');\nconst jumpFilter = jumpDialog?.querySelector<HTMLInputElement>('.JumpDialog-input');\nconst doc = document.querySelector<HTMLDivElement>('.js-documentation');\n\ninterface JumpListItem {\n link: HTMLAnchorElement;\n name: string;\n kind: string;\n lower: string;\n}\n\nlet jumpListItems: JumpListItem[] | undefined; // All the symbols in the doc; computed only once.\n\n// collectJumpListItems returns a list of items, one for each symbol in the\n// documentation on the current page.\n//\n// It uses the data-kind attribute generated in the documentation HTML to find\n// the symbols and their id attributes.\n//\n// If there are no data-kind attributes, then we have older doc; fall back to\n// a less precise method.\nfunction collectJumpListItems() {\n const items = [];\n if (!doc) return;\n for (const el of doc.querySelectorAll('[data-kind]')) {\n items.push(newJumpListItem(el));\n }\n\n // Clicking on any of the links closes the dialog.\n for (const item of items) {\n item.link.addEventListener('click', function () {\n jumpDialog?.close();\n });\n }\n // Sort case-insensitively by symbol name.\n items.sort(function (a, b) {\n return a.lower.localeCompare(b.lower);\n });\n return items;\n}\n\n// newJumpListItem creates a new item for the DOM element el.\n// An item is an object with:\n// - name: the element's id (which is the symbol name)\n// - kind: the element's kind (function, variable, etc.),\n// - link: a link ('a' tag) to the element\n// - lower: the name in lower case, just for sorting\nfunction newJumpListItem(el: Element): JumpListItem {\n const a = document.createElement('a');\n const name = el.getAttribute('id');\n a.setAttribute('href', '#' + name);\n a.setAttribute('tabindex', '-1');\n a.setAttribute('data-gtmc', 'jump to link');\n const kind = el.getAttribute('data-kind');\n return {\n link: a,\n name: name ?? '',\n kind: kind ?? '',\n lower: name?.toLowerCase() ?? '', // for sorting\n };\n}\n\nlet lastFilterValue: string; // The last contents of the filter text box.\nlet activeJumpItem = -1; // The index of the currently active item in the list.\n\n// updateJumpList sets the elements of the dialog list to\n// everything whose name contains filter.\nfunction updateJumpList(filter: string) {\n lastFilterValue = filter;\n if (!jumpListItems) {\n jumpListItems = collectJumpListItems();\n }\n setActiveJumpItem(-1);\n\n // Remove all children from list.\n while (jumpList?.firstChild) {\n jumpList.firstChild.remove();\n }\n\n if (filter) {\n // A filter is set. We treat the filter as a substring that can appear in\n // an item name (case insensitive), and find the following matches - in\n // order of priority:\n //\n // 1. Exact matches (the filter matches the item's name exactly)\n // 2. Prefix matches (the item's name starts with filter)\n // 3. Infix matches (the filter is a substring of the item's name)\n const filterLowerCase = filter.toLowerCase();\n\n const exactMatches = [];\n const prefixMatches = [];\n const infixMatches = [];\n\n // makeLinkHtml creates the link name HTML for a list item. item is the DOM\n // item. item.name.substr(boldStart, boldEnd) will be bolded.\n const makeLinkHtml = (item: JumpListItem, boldStart: number, boldEnd: number) => {\n return (\n item.name.substring(0, boldStart) +\n '<b>' +\n item.name.substring(boldStart, boldEnd) +\n '</b>' +\n item.name.substring(boldEnd)\n );\n };\n\n for (const item of jumpListItems ?? []) {\n const nameLowerCase = item.name.toLowerCase();\n\n if (nameLowerCase === filterLowerCase) {\n item.link.innerHTML = makeLinkHtml(item, 0, item.name.length);\n exactMatches.push(item);\n } else if (nameLowerCase.startsWith(filterLowerCase)) {\n item.link.innerHTML = makeLinkHtml(item, 0, filter.length);\n prefixMatches.push(item);\n } else {\n const index = nameLowerCase.indexOf(filterLowerCase);\n if (index > -1) {\n item.link.innerHTML = makeLinkHtml(item, index, index + filter.length);\n infixMatches.push(item);\n }\n }\n }\n\n for (const item of exactMatches.concat(prefixMatches).concat(infixMatches)) {\n jumpList?.appendChild(item.link);\n }\n } else {\n if (!jumpListItems || jumpListItems.length === 0) {\n const msg = document.createElement('i');\n msg.innerHTML = 'There are no symbols on this page.';\n jumpList?.appendChild(msg);\n }\n // No filter set; display all items in their existing order.\n for (const item of jumpListItems ?? []) {\n item.link.innerHTML = item.name + ' <i>' + item.kind + '</i>';\n jumpList?.appendChild(item.link);\n }\n }\n\n if (jumpBody) {\n jumpBody.scrollTop = 0;\n }\n if (jumpListItems?.length && jumpList && jumpList.children.length > 0) {\n setActiveJumpItem(0);\n }\n}\n\n// Set the active jump item to n.\nfunction setActiveJumpItem(n: number) {\n const cs = jumpList?.children as HTMLCollectionOf<HTMLElement> | null | undefined;\n if (!cs || !jumpBody) {\n return;\n }\n if (activeJumpItem >= 0) {\n cs[activeJumpItem].classList.remove('JumpDialog-active');\n }\n if (n >= cs.length) {\n n = cs.length - 1;\n }\n if (n >= 0) {\n cs[n].classList.add('JumpDialog-active');\n\n // Scroll so the active item is visible.\n // For some reason cs[n].scrollIntoView() doesn't behave as I'd expect:\n // it moves the entire dialog box in the viewport.\n\n // Get the top and bottom of the active item relative to jumpBody.\n const activeTop = cs[n].offsetTop - cs[0].offsetTop;\n const activeBottom = activeTop + cs[n].clientHeight;\n if (activeTop < jumpBody.scrollTop) {\n // Off the top; scroll up.\n jumpBody.scrollTop = activeTop;\n } else if (activeBottom > jumpBody.scrollTop + jumpBody.clientHeight) {\n // Off the bottom; scroll down.\n jumpBody.scrollTop = activeBottom - jumpBody.clientHeight;\n }\n }\n activeJumpItem = n;\n}\n\n// Increment the activeJumpItem by delta.\nfunction incActiveJumpItem(delta: number) {\n if (activeJumpItem < 0) {\n return;\n }\n let n = activeJumpItem + delta;\n if (n < 0) {\n n = 0;\n }\n setActiveJumpItem(n);\n}\n\n// Pressing a key in the filter updates the list (if the filter actually changed).\njumpFilter?.addEventListener('keyup', function () {\n if (jumpFilter.value.toUpperCase() != lastFilterValue.toUpperCase()) {\n updateJumpList(jumpFilter.value);\n }\n});\n\n// Pressing enter in the filter selects the first element in the list.\njumpFilter?.addEventListener('keydown', function (event) {\n const upArrow = 38;\n const downArrow = 40;\n const enterKey = 13;\n switch (event.which) {\n case upArrow:\n incActiveJumpItem(-1);\n event.preventDefault();\n break;\n case downArrow:\n incActiveJumpItem(1);\n event.preventDefault();\n break;\n case enterKey:\n if (activeJumpItem >= 0) {\n if (jumpList) {\n (jumpList.children[activeJumpItem] as HTMLElement).click();\n event.preventDefault();\n }\n }\n break;\n }\n});\n\nconst shortcutsDialog = document.querySelector<HTMLDialogElement>('.ShortcutsDialog');\n\n// Keyboard shortcuts:\n// - Pressing '/' focuses the search box\n// - Pressing 'f' or 'F' opens the jump-to-symbol dialog.\n// - Pressing '?' opens up the shortcut dialog.\n// Ignore a keypress if a dialog is already open, or if it is pressed on a\n// component that wants to consume it.\ndocument.addEventListener('keypress', function (e) {\n if (jumpDialog?.open || shortcutsDialog?.open) {\n return;\n }\n const target = e.target as HTMLElement | null;\n const t = target?.tagName;\n if (t == 'INPUT' || t == 'SELECT' || t == 'TEXTAREA') {\n return;\n }\n if (target?.contentEditable == 'true') {\n return;\n }\n if (e.metaKey || e.ctrlKey) {\n return;\n }\n const ch = String.fromCharCode(e.which);\n switch (ch) {\n case 'f':\n case 'F':\n e.preventDefault();\n if (jumpFilter) {\n jumpFilter.value = '';\n }\n jumpDialog?.showModal();\n jumpFilter?.focus();\n updateJumpList('');\n break;\n case '?':\n shortcutsDialog?.showModal();\n break;\n }\n});\n\nconst jumpOutlineInput = document.querySelector('.js-jumpToInput');\nif (jumpOutlineInput) {\n jumpOutlineInput.addEventListener('click', () => {\n if (jumpFilter) {\n jumpFilter.value = '';\n }\n updateJumpList('');\n });\n}\n", "/*!\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n// This file implements the playground implementation of the documentation\n// page. The playground involves a \"play\" button that allows you to open up\n// a new link to play.golang.org using the example code.\n\n// The CSS is in static/frontend/unit/main/_doc.css\n\n/**\n * CSS classes used by PlaygroundExampleController\n */\nconst PlayExampleClassName = {\n PLAY_HREF: '.js-exampleHref',\n PLAY_CONTAINER: '.js-exampleContainer',\n EXAMPLE_INPUT: '.Documentation-exampleCode',\n EXAMPLE_OUTPUT: '.Documentation-exampleOutput',\n EXAMPLE_ERROR: '.Documentation-exampleError',\n PLAY_BUTTON: '.Documentation-examplePlayButton',\n SHARE_BUTTON: '.Documentation-exampleShareButton',\n FORMAT_BUTTON: '.Documentation-exampleFormatButton',\n RUN_BUTTON: '.Documentation-exampleRunButton',\n};\n\n/**\n * This controller enables playground examples to expand their dropdown or\n * generate shareable Go Playground URLs.\n */\nexport class PlaygroundExampleController {\n /**\n * The anchor tag used to identify the container with an example href.\n * There is only one in an example container div.\n */\n private readonly anchorEl: HTMLAnchorElement | null;\n\n /**\n * The error element\n */\n private readonly errorEl: Element | null;\n\n /**\n * Buttons that redirect to an example's playground, this element\n * only exists in executable examples.\n */\n private readonly playButtonEl: Element | null;\n private readonly shareButtonEl: Element | null;\n\n /**\n * Button that formats the code in an example's playground.\n */\n private readonly formatButtonEl: Element | null;\n\n /**\n * Button that runs the code in an example's playground, this element\n * only exists in executable examples.\n */\n private readonly runButtonEl: Element | null;\n\n /**\n * The executable code of an example.\n */\n private readonly inputEl: HTMLTextAreaElement | null;\n\n /**\n * The output of the given example code. This only exists if the\n * author of the package provides an output for this example.\n */\n private readonly outputEl: Element | null;\n\n /**\n * @param exampleEl The div that contains playground content for the given example.\n */\n constructor(private readonly exampleEl: HTMLDetailsElement) {\n this.exampleEl = exampleEl;\n this.anchorEl = exampleEl.querySelector('a');\n this.errorEl = exampleEl.querySelector(PlayExampleClassName.EXAMPLE_ERROR);\n this.playButtonEl = exampleEl.querySelector(PlayExampleClassName.PLAY_BUTTON);\n this.shareButtonEl = exampleEl.querySelector(PlayExampleClassName.SHARE_BUTTON);\n this.formatButtonEl = exampleEl.querySelector(PlayExampleClassName.FORMAT_BUTTON);\n this.runButtonEl = exampleEl.querySelector(PlayExampleClassName.RUN_BUTTON);\n this.inputEl = this.makeTextArea(exampleEl.querySelector(PlayExampleClassName.EXAMPLE_INPUT));\n this.outputEl = exampleEl.querySelector(PlayExampleClassName.EXAMPLE_OUTPUT);\n\n // This is legacy listener to be replaced the listener for shareButtonEl.\n this.playButtonEl?.addEventListener('click', () => this.handleShareButtonClick());\n this.shareButtonEl?.addEventListener('click', () => this.handleShareButtonClick());\n this.formatButtonEl?.addEventListener('click', () => this.handleFormatButtonClick());\n this.runButtonEl?.addEventListener('click', () => this.handleRunButtonClick());\n\n if (!this.inputEl) return;\n\n this.resize();\n this.inputEl.addEventListener('keyup', () => this.resize());\n this.inputEl.addEventListener('keydown', e => this.onKeydown(e));\n }\n\n /**\n * Replace the pre element with a textarea. The examples are initially rendered\n * as pre elements so they're fully visible when JS is disabled.\n */\n makeTextArea(el: Element | null): HTMLTextAreaElement {\n const t = document.createElement('textarea');\n t.classList.add('Documentation-exampleCode', 'code');\n t.spellcheck = false;\n t.value = el?.textContent ?? '';\n el?.parentElement?.replaceChild(t, el);\n return t;\n }\n\n /**\n * Retrieve the hash value of the anchor element.\n */\n getAnchorHash(): string | undefined {\n return this.anchorEl?.hash;\n }\n\n /**\n * Expands the current playground example.\n */\n expand(): void {\n this.exampleEl.open = true;\n }\n\n /**\n * Resizes the input element to accomodate the amount of text present.\n */\n private resize(): void {\n if (this.inputEl?.value) {\n const numLineBreaks = (this.inputEl.value.match(/\\n/g) || []).length;\n // min-height + lines x line-height + padding + border\n this.inputEl.style.height = `${(20 + numLineBreaks * 20 + 12 + 2) / 16}rem`;\n }\n }\n\n /**\n * Handler to override keyboard behavior in the playground's\n * textarea element.\n *\n * Tab key inserts tabs into the example playground instead of\n * switching to the next interactive element.\n * @param e input element keyboard event.\n */\n private onKeydown(e: KeyboardEvent) {\n if (e.key === 'Tab') {\n document.execCommand('insertText', false, '\\t');\n e.preventDefault();\n }\n }\n\n /**\n * Changes the text of the example's input box.\n */\n private setInputText(output: string) {\n if (this.inputEl) {\n this.inputEl.value = output;\n }\n }\n\n /**\n * Changes the text of the example's output box.\n */\n private setOutputText(output: string) {\n if (this.outputEl) {\n this.outputEl.textContent = output;\n }\n }\n\n /**\n * Sets the error message text and overwrites\n * output box to indicate a failed response.\n */\n private setErrorText(err: string) {\n if (this.errorEl) {\n this.errorEl.textContent = err;\n }\n this.setOutputText('An error has occurred\u2026');\n }\n\n /**\n * Opens a new window to play.golang.org using the\n * example snippet's code in the playground.\n */\n private handleShareButtonClick() {\n const PLAYGROUND_BASE_URL = 'https://play.golang.org/p/';\n\n this.setOutputText('Waiting for remote server\u2026');\n\n fetch('/play/share', {\n method: 'POST',\n body: this.inputEl?.value,\n })\n .then(res => res.text())\n .then(shareId => {\n const href = PLAYGROUND_BASE_URL + shareId;\n this.setOutputText(`<a href=\"${href}\">${href}</a>`);\n window.open(href);\n })\n .catch(err => {\n this.setErrorText(err);\n });\n }\n\n /**\n * Runs gofmt on the example snippet in the playground.\n */\n private handleFormatButtonClick() {\n this.setOutputText('Waiting for remote server\u2026');\n const body = new FormData();\n body.append('body', this.inputEl?.value ?? '');\n\n fetch('/play/fmt', {\n method: 'POST',\n body: body,\n })\n .then(res => res.json())\n .then(({ Body, Error }) => {\n this.setOutputText(Error || 'Done.');\n if (Body) {\n this.setInputText(Body);\n this.resize();\n }\n })\n .catch(err => {\n this.setErrorText(err);\n });\n }\n\n /**\n * Runs the code snippet in the example playground.\n */\n private handleRunButtonClick() {\n this.setOutputText('Waiting for remote server\u2026');\n\n fetch('/play/compile', {\n method: 'POST',\n body: JSON.stringify({ body: this.inputEl?.value, version: 2 }),\n })\n .then(res => res.json())\n .then(async ({ Events, Errors }) => {\n this.setOutputText(Errors || '');\n for (const e of Events || []) {\n this.setOutputText(e.Message);\n await new Promise(resolve => setTimeout(resolve, e.Delay / 1000000));\n }\n })\n .catch(err => {\n this.setErrorText(err);\n });\n }\n}\n\nconst exampleHashRegex = location.hash.match(/^#(example-.*)$/);\nif (exampleHashRegex) {\n const exampleHashEl = document.getElementById(exampleHashRegex[1]) as HTMLDetailsElement;\n if (exampleHashEl) {\n exampleHashEl.open = true;\n }\n}\n\n// We use a spread operator to convert a nodelist into an array of elements.\nconst exampleHrefs = [\n ...document.querySelectorAll<HTMLAnchorElement>(PlayExampleClassName.PLAY_HREF),\n];\n\n/**\n * Sometimes exampleHrefs and playContainers are in different order, so we\n * find an exampleHref from a common hash.\n * @param playContainer - playground container\n */\nconst findExampleHash = (playContainer: PlaygroundExampleController) =>\n exampleHrefs.find(ex => {\n return ex.hash === playContainer.getAnchorHash();\n });\n\nfor (const el of document.querySelectorAll(PlayExampleClassName.PLAY_CONTAINER)) {\n // There should be the same amount of hrefs referencing examples as example containers.\n const playContainer = new PlaygroundExampleController(el as HTMLDetailsElement);\n const exampleHref = findExampleHash(playContainer);\n if (exampleHref) {\n exampleHref.addEventListener('click', () => {\n playContainer.expand();\n });\n } else {\n console.warn('example href not found');\n }\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { TreeNavController } from './tree.js';\n\nexport class SelectNavController {\n constructor(private el: Element) {\n this.el.addEventListener('change', e => {\n const target = e.target as HTMLSelectElement;\n let href = target.value;\n if (!target.value.startsWith('/')) {\n href = '/' + href;\n }\n window.location.href = href;\n });\n }\n}\n\nexport function makeSelectNav(tree: TreeNavController): HTMLLabelElement {\n const label = document.createElement('label');\n label.classList.add('go-Label');\n label.setAttribute('aria-label', 'Menu');\n const select = document.createElement('select');\n select.classList.add('go-Select', 'js-selectNav');\n label.appendChild(select);\n const outline = document.createElement('optgroup');\n outline.label = 'Outline';\n select.appendChild(outline);\n const groupMap: Record<string, HTMLOptGroupElement> = {};\n let group: HTMLOptGroupElement;\n for (const t of tree.treeitems) {\n if (Number(t.depth) > 4) continue;\n if (t.groupTreeitem) {\n group = groupMap[t.groupTreeitem.label];\n if (!group) {\n group = groupMap[t.groupTreeitem.label] = document.createElement('optgroup');\n group.label = t.groupTreeitem.label;\n select.appendChild(group);\n }\n } else {\n group = outline;\n }\n const o = document.createElement('option');\n o.label = t.label;\n o.textContent = t.label;\n o.value = (t.el as HTMLAnchorElement).href.replace(window.location.origin, '').replace('/', '');\n group.appendChild(o);\n }\n tree.addObserver(t => {\n const hash = (t.el as HTMLAnchorElement).hash;\n const value = select.querySelector<HTMLOptionElement>(`[value$=\"${hash}\"]`)?.value;\n if (value) {\n select.value = value;\n }\n }, 50);\n return label;\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * TreeNavController is the navigation tree component of the documentation page.\n * It adds accessiblity attributes to a tree, observes the heading elements\n * focus the topmost link for headings visible on the page, and implements the\n * WAI-ARIA Treeview Design Pattern with full\n * [keyboard support](https://www.w3.org/TR/wai-aria-practices/examples/treeview/treeview-2/treeview-2a.html#kbd_label).\n */\nexport class TreeNavController {\n treeitems: TreeItem[];\n\n /**\n * firstChars is the first character of each treeitem in the same order\n * as this.treeitems. We use this array to set focus by character when\n * navigating the tree with a keyboard.\n */\n private firstChars: string[];\n private firstTreeitem: TreeItem | null;\n private lastTreeitem: TreeItem | null;\n private observerCallbacks: ((t: TreeItem) => void)[];\n\n constructor(private el: HTMLElement) {\n this.treeitems = [];\n this.firstChars = [];\n this.firstTreeitem = null;\n this.lastTreeitem = null;\n this.observerCallbacks = [];\n this.init();\n }\n\n private init(): void {\n this.handleResize();\n window.addEventListener('resize', this.handleResize);\n this.findTreeItems();\n this.updateVisibleTreeitems();\n this.observeTargets();\n if (this.firstTreeitem) {\n this.firstTreeitem.el.tabIndex = 0;\n }\n }\n\n private handleResize = (): void => {\n this.el.style.setProperty('--js-tree-height', '100vh');\n this.el.style.setProperty('--js-tree-height', this.el.clientHeight + 'px');\n };\n\n private observeTargets() {\n this.addObserver(treeitem => {\n this.expandTreeitem(treeitem);\n this.setSelected(treeitem);\n // TODO: Fix scroll issue in https://golang.org/issue/47450.\n // treeitem.el.scrollIntoView({ block: 'nearest' });\n });\n\n const targets = new Map<string, boolean>();\n const observer = new IntersectionObserver(\n entries => {\n for (const entry of entries) {\n targets.set(entry.target.id, entry.isIntersecting || entry.intersectionRatio === 1);\n }\n for (const [id, isIntersecting] of targets) {\n if (isIntersecting) {\n const active = this.treeitems.find(t =>\n (t.el as HTMLAnchorElement)?.href.endsWith(`#${id}`)\n );\n if (active) {\n for (const fn of this.observerCallbacks) {\n fn(active);\n }\n }\n break;\n }\n }\n },\n {\n threshold: 1.0,\n rootMargin: '-60px 0px 0px 0px',\n }\n );\n\n for (const href of this.treeitems.map(t => t.el.getAttribute('href'))) {\n if (href) {\n const id = href.replace(window.location.origin, '').replace('/', '').replace('#', '');\n const target = document.getElementById(id);\n if (target) {\n observer.observe(target);\n }\n }\n }\n }\n\n addObserver(fn: (t: TreeItem) => void, delay = 200): void {\n this.observerCallbacks.push(debounce(fn, delay));\n }\n\n setFocusToNextItem(currentItem: TreeItem): void {\n let nextItem = null;\n for (let i = currentItem.index + 1; i < this.treeitems.length; i++) {\n const ti = this.treeitems[i];\n if (ti.isVisible) {\n nextItem = ti;\n break;\n }\n }\n if (nextItem) {\n this.setFocusToItem(nextItem);\n }\n }\n\n setFocusToPreviousItem(currentItem: TreeItem): void {\n let prevItem = null;\n for (let i = currentItem.index - 1; i > -1; i--) {\n const ti = this.treeitems[i];\n if (ti.isVisible) {\n prevItem = ti;\n break;\n }\n }\n if (prevItem) {\n this.setFocusToItem(prevItem);\n }\n }\n\n setFocusToParentItem(currentItem: TreeItem): void {\n if (currentItem.groupTreeitem) {\n this.setFocusToItem(currentItem.groupTreeitem);\n }\n }\n\n setFocusToFirstItem(): void {\n this.firstTreeitem && this.setFocusToItem(this.firstTreeitem);\n }\n\n setFocusToLastItem(): void {\n this.lastTreeitem && this.setFocusToItem(this.lastTreeitem);\n }\n\n setSelected(currentItem: TreeItem): void {\n for (const l1 of this.el.querySelectorAll('[aria-expanded=\"true\"]')) {\n if (l1 === currentItem.el) continue;\n if (!l1.nextElementSibling?.contains(currentItem.el)) {\n l1.setAttribute('aria-expanded', 'false');\n }\n }\n for (const l1 of this.el.querySelectorAll('[aria-selected]')) {\n if (l1 !== currentItem.el) {\n l1.setAttribute('aria-selected', 'false');\n }\n }\n currentItem.el.setAttribute('aria-selected', 'true');\n this.updateVisibleTreeitems();\n this.setFocusToItem(currentItem, false);\n }\n\n expandTreeitem(treeitem: TreeItem): void {\n let currentItem: TreeItem | null = treeitem;\n while (currentItem) {\n if (currentItem.isExpandable) {\n currentItem.el.setAttribute('aria-expanded', 'true');\n }\n currentItem = currentItem.groupTreeitem;\n }\n this.updateVisibleTreeitems();\n }\n\n expandAllSiblingItems(currentItem: TreeItem): void {\n for (const ti of this.treeitems) {\n if (ti.groupTreeitem === currentItem.groupTreeitem && ti.isExpandable) {\n this.expandTreeitem(ti);\n }\n }\n }\n\n collapseTreeitem(currentItem: TreeItem): void {\n let groupTreeitem = null;\n\n if (currentItem.isExpanded()) {\n groupTreeitem = currentItem;\n } else {\n groupTreeitem = currentItem.groupTreeitem;\n }\n\n if (groupTreeitem) {\n groupTreeitem.el.setAttribute('aria-expanded', 'false');\n this.updateVisibleTreeitems();\n this.setFocusToItem(groupTreeitem);\n }\n }\n\n setFocusByFirstCharacter(currentItem: TreeItem, char: string): void {\n let start: number, index: number;\n char = char.toLowerCase();\n\n // Get start index for search based on position of currentItem\n start = currentItem.index + 1;\n if (start === this.treeitems.length) {\n start = 0;\n }\n\n // Check remaining slots in the menu\n index = this.getIndexFirstChars(start, char);\n\n // If not found in remaining slots, check from beginning\n if (index === -1) {\n index = this.getIndexFirstChars(0, char);\n }\n\n // If match was found...\n if (index > -1) {\n this.setFocusToItem(this.treeitems[index]);\n }\n }\n\n private findTreeItems() {\n const findItems = (el: HTMLElement, group: TreeItem | null) => {\n let ti = group;\n let curr = el.firstElementChild as HTMLElement;\n while (curr) {\n if (curr.tagName === 'A' || curr.tagName === 'SPAN') {\n ti = new TreeItem(curr, this, group);\n this.treeitems.push(ti);\n this.firstChars.push(ti.label.substring(0, 1).toLowerCase());\n }\n if (curr.firstElementChild) {\n findItems(curr, ti);\n }\n curr = curr.nextElementSibling as HTMLElement;\n }\n };\n findItems(this.el as HTMLElement, null);\n this.treeitems.map((ti, idx) => (ti.index = idx));\n }\n\n private updateVisibleTreeitems(): void {\n this.firstTreeitem = this.treeitems[0];\n\n for (const ti of this.treeitems) {\n let parent = ti.groupTreeitem;\n ti.isVisible = true;\n while (parent && parent.el !== this.el) {\n if (!parent.isExpanded()) {\n ti.isVisible = false;\n }\n parent = parent.groupTreeitem;\n }\n if (ti.isVisible) {\n this.lastTreeitem = ti;\n }\n }\n }\n\n private setFocusToItem(treeitem: TreeItem, focusEl = true) {\n treeitem.el.tabIndex = 0;\n if (focusEl) {\n treeitem.el.focus();\n }\n for (const ti of this.treeitems) {\n if (ti !== treeitem) {\n ti.el.tabIndex = -1;\n }\n }\n }\n\n private getIndexFirstChars(startIndex: number, char: string): number {\n for (let i = startIndex; i < this.firstChars.length; i++) {\n if (this.treeitems[i].isVisible && char === this.firstChars[i]) {\n return i;\n }\n }\n return -1;\n }\n}\n\nclass TreeItem {\n el: HTMLElement;\n groupTreeitem: TreeItem | null;\n label: string;\n isExpandable: boolean;\n isVisible: boolean;\n depth: number;\n index: number;\n\n private tree: TreeNavController;\n private isInGroup: boolean;\n\n constructor(el: HTMLElement, treeObj: TreeNavController, group: TreeItem | null) {\n el.tabIndex = -1;\n this.el = el;\n this.groupTreeitem = group;\n this.label = el.textContent?.trim() ?? '';\n this.tree = treeObj;\n this.depth = (group?.depth || 0) + 1;\n this.index = 0;\n\n const parent = el.parentElement;\n if (parent?.tagName.toLowerCase() === 'li') {\n parent?.setAttribute('role', 'none');\n }\n el.setAttribute('aria-level', this.depth + '');\n if (el.getAttribute('aria-label')) {\n this.label = el?.getAttribute('aria-label')?.trim() ?? '';\n }\n\n this.isExpandable = false;\n this.isVisible = false;\n this.isInGroup = !!group;\n\n let curr = el.nextElementSibling;\n while (curr) {\n if (curr.tagName.toLowerCase() == 'ul') {\n const groupId = `${group?.label ?? 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All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * Controller for a table element with expandable rows. Adds event listeners to\n * a toggle within a table row that controls visiblity of additional related\n * rows in the table.\n *\n * @example\n * ```typescript\n * import {ExpandableRowsTableController} from '/static/js/table';\n *\n * const el = document .querySelector<HTMLTableElement>('.js-myTableElement')\n * new ExpandableRowsTableController(el));\n * ```\n */\nexport class ExpandableRowsTableController {\n private rows: HTMLTableRowElement[];\n private toggles: HTMLButtonElement[];\n\n /**\n * Create a table controller.\n * @param table - The table element to which the controller binds.\n */\n constructor(private table: HTMLTableElement, private toggleAll?: HTMLButtonElement | null) {\n this.rows = Array.from(table.querySelectorAll<HTMLTableRowElement>('[data-aria-controls]'));\n this.toggles = Array.from(this.table.querySelectorAll('[aria-expanded]'));\n this.setAttributes();\n this.attachEventListeners();\n this.update();\n }\n\n /**\n * setAttributes sets data-aria-* and data-id attributes to regular\n * html attributes as a workaround for limitations from safehtml.\n */\n private setAttributes() {\n for (const a of ['data-aria-controls', 'data-aria-labelledby', 'data-id']) {\n this.table.querySelectorAll(`[${a}]`).forEach(t => {\n t.setAttribute(a.replace('data-', ''), t.getAttribute(a) ?? '');\n t.removeAttribute(a);\n });\n }\n }\n\n private attachEventListeners() {\n this.rows.forEach(t => {\n t.addEventListener('click', e => {\n this.handleToggleClick(e);\n });\n });\n this.toggleAll?.addEventListener('click', () => {\n this.expandAllItems();\n });\n\n document.addEventListener('keydown', e => {\n if ((e.ctrlKey || e.metaKey) && e.key === 'f') {\n this.expandAllItems();\n }\n });\n }\n\n private handleToggleClick(e: MouseEvent) {\n let target = e.currentTarget as HTMLTableRowElement | null;\n if (!target?.hasAttribute('aria-expanded')) {\n target = this.table.querySelector(\n `button[aria-controls=\"${target?.getAttribute('aria-controls')}\"]`\n );\n }\n const isExpanded = target?.getAttribute('aria-expanded') === 'true';\n target?.setAttribute('aria-expanded', isExpanded ? 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+ "sourcesContent": ["/*!\n * @license\n * Copyright 2019-2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n// This file implements the behavior of the \"jump to symbol\" dialog for Go\n// package documentation, as well as the simple dialog that displays keyboard\n// shortcuts.\n\n// The DOM for the dialogs is at the bottom of static/frontend/unit/main/_modals.tmpl.\n// The CSS is in static/frontend/unit/main/_modals.css.\n\n// The dialog is activated by pressing the 'f' key. It presents a list\n// (#JumpDialog-list) of all Go symbols displayed in the documentation.\n// Entering text in the dialog's text box (#JumpDialog-filter) restricts the\n// list to symbols containing the text. Clicking on an symbol jumps to\n// its documentation.\n\n// This code is based on\n// https://go.googlesource.com/gddo/+/refs/heads/master/gddo-server/assets/site.js.\n// It was modified to remove the dependence on jquery and bootstrap.\n\nconst jumpDialog = document.querySelector<HTMLDialogElement>('.JumpDialog');\nconst jumpBody = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-body');\nconst jumpList = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-list');\nconst jumpFilter = jumpDialog?.querySelector<HTMLInputElement>('.JumpDialog-input');\nconst doc = document.querySelector<HTMLDivElement>('.js-documentation');\n\ninterface JumpListItem {\n link: HTMLAnchorElement;\n name: string;\n kind: string;\n lower: string;\n}\n\nlet jumpListItems: JumpListItem[] | undefined; // All the symbols in the doc; computed only once.\n\n// collectJumpListItems returns a list of items, one for each symbol in the\n// documentation on the current page.\n//\n// It uses the data-kind attribute generated in the documentation HTML to find\n// the symbols and their id attributes.\n//\n// If there are no data-kind attributes, then we have older doc; fall back to\n// a less precise method.\nfunction collectJumpListItems() {\n const items = [];\n if (!doc) return;\n for (const el of doc.querySelectorAll('[data-kind]')) {\n items.push(newJumpListItem(el));\n }\n\n // Clicking on any of the links closes the dialog.\n for (const item of items) {\n item.link.addEventListener('click', function () {\n jumpDialog?.close();\n });\n }\n // Sort case-insensitively by symbol name.\n items.sort(function (a, b) {\n return a.lower.localeCompare(b.lower);\n });\n return items;\n}\n\n// newJumpListItem creates a new item for the DOM element el.\n// An item is an object with:\n// - name: the element's id (which is the symbol name)\n// - kind: the element's kind (function, variable, etc.),\n// - link: a link ('a' tag) to the element\n// - lower: the name in lower case, just for sorting\nfunction newJumpListItem(el: Element): JumpListItem {\n const a = document.createElement('a');\n const name = el.getAttribute('id');\n a.setAttribute('href', '#' + name);\n a.setAttribute('tabindex', '-1');\n a.setAttribute('data-gtmc', 'jump to link');\n const kind = el.getAttribute('data-kind');\n return {\n link: a,\n name: name ?? '',\n kind: kind ?? '',\n lower: name?.toLowerCase() ?? '', // for sorting\n };\n}\n\nlet lastFilterValue: string; // The last contents of the filter text box.\nlet activeJumpItem = -1; // The index of the currently active item in the list.\n\n// updateJumpList sets the elements of the dialog list to\n// everything whose name contains filter.\nfunction updateJumpList(filter: string) {\n lastFilterValue = filter;\n if (!jumpListItems) {\n jumpListItems = collectJumpListItems();\n }\n setActiveJumpItem(-1);\n\n // Remove all children from list.\n while (jumpList?.firstChild) {\n jumpList.firstChild.remove();\n }\n\n if (filter) {\n // A filter is set. We treat the filter as a substring that can appear in\n // an item name (case insensitive), and find the following matches - in\n // order of priority:\n //\n // 1. Exact matches (the filter matches the item's name exactly)\n // 2. Prefix matches (the item's name starts with filter)\n // 3. Infix matches (the filter is a substring of the item's name)\n const filterLowerCase = filter.toLowerCase();\n\n const exactMatches = [];\n const prefixMatches = [];\n const infixMatches = [];\n\n // makeLinkHtml creates the link name HTML for a list item. item is the DOM\n // item. item.name.substr(boldStart, boldEnd) will be bolded.\n const makeLinkHtml = (item: JumpListItem, boldStart: number, boldEnd: number) => {\n return (\n item.name.substring(0, boldStart) +\n '<b>' +\n item.name.substring(boldStart, boldEnd) +\n '</b>' +\n item.name.substring(boldEnd)\n );\n };\n\n for (const item of jumpListItems ?? []) {\n const nameLowerCase = item.name.toLowerCase();\n\n if (nameLowerCase === filterLowerCase) {\n item.link.innerHTML = makeLinkHtml(item, 0, item.name.length);\n exactMatches.push(item);\n } else if (nameLowerCase.startsWith(filterLowerCase)) {\n item.link.innerHTML = makeLinkHtml(item, 0, filter.length);\n prefixMatches.push(item);\n } else {\n const index = nameLowerCase.indexOf(filterLowerCase);\n if (index > -1) {\n item.link.innerHTML = makeLinkHtml(item, index, index + filter.length);\n infixMatches.push(item);\n }\n }\n }\n\n for (const item of exactMatches.concat(prefixMatches).concat(infixMatches)) {\n jumpList?.appendChild(item.link);\n }\n } else {\n if (!jumpListItems || jumpListItems.length === 0) {\n const msg = document.createElement('i');\n msg.innerHTML = 'There are no symbols on this page.';\n jumpList?.appendChild(msg);\n }\n // No filter set; display all items in their existing order.\n for (const item of jumpListItems ?? []) {\n item.link.innerHTML = item.name + ' <i>' + item.kind + '</i>';\n jumpList?.appendChild(item.link);\n }\n }\n\n if (jumpBody) {\n jumpBody.scrollTop = 0;\n }\n if (jumpListItems?.length && jumpList && jumpList.children.length > 0) {\n setActiveJumpItem(0);\n }\n}\n\n// Set the active jump item to n.\nfunction setActiveJumpItem(n: number) {\n const cs = jumpList?.children as HTMLCollectionOf<HTMLElement> | null | undefined;\n if (!cs || !jumpBody) {\n return;\n }\n if (activeJumpItem >= 0) {\n cs[activeJumpItem].classList.remove('JumpDialog-active');\n }\n if (n >= cs.length) {\n n = cs.length - 1;\n }\n if (n >= 0) {\n cs[n].classList.add('JumpDialog-active');\n\n // Scroll so the active item is visible.\n // For some reason cs[n].scrollIntoView() doesn't behave as I'd expect:\n // it moves the entire dialog box in the viewport.\n\n // Get the top and bottom of the active item relative to jumpBody.\n const activeTop = cs[n].offsetTop - cs[0].offsetTop;\n const activeBottom = activeTop + cs[n].clientHeight;\n if (activeTop < jumpBody.scrollTop) {\n // Off the top; scroll up.\n jumpBody.scrollTop = activeTop;\n } else if (activeBottom > jumpBody.scrollTop + jumpBody.clientHeight) {\n // Off the bottom; scroll down.\n jumpBody.scrollTop = activeBottom - jumpBody.clientHeight;\n }\n }\n activeJumpItem = n;\n}\n\n// Increment the activeJumpItem by delta.\nfunction incActiveJumpItem(delta: number) {\n if (activeJumpItem < 0) {\n return;\n }\n let n = activeJumpItem + delta;\n if (n < 0) {\n n = 0;\n }\n setActiveJumpItem(n);\n}\n\n// Pressing a key in the filter updates the list (if the filter actually changed).\njumpFilter?.addEventListener('keyup', function () {\n if (jumpFilter.value.toUpperCase() != lastFilterValue.toUpperCase()) {\n updateJumpList(jumpFilter.value);\n }\n});\n\n// Pressing enter in the filter selects the first element in the list.\njumpFilter?.addEventListener('keydown', function (event) {\n const upArrow = 38;\n const downArrow = 40;\n const enterKey = 13;\n switch (event.which) {\n case upArrow:\n incActiveJumpItem(-1);\n event.preventDefault();\n break;\n case downArrow:\n incActiveJumpItem(1);\n event.preventDefault();\n break;\n case enterKey:\n if (activeJumpItem >= 0) {\n if (jumpList) {\n (jumpList.children[activeJumpItem] as HTMLElement).click();\n event.preventDefault();\n }\n }\n break;\n }\n});\n\nconst shortcutsDialog = document.querySelector<HTMLDialogElement>('.ShortcutsDialog');\n\n// Keyboard shortcuts:\n// - Pressing '/' focuses the search box\n// - Pressing 'f' or 'F' opens the jump-to-symbol dialog.\n// - Pressing '?' opens up the shortcut dialog.\n// Ignore a keypress if a dialog is already open, or if it is pressed on a\n// component that wants to consume it.\ndocument.addEventListener('keypress', function (e) {\n if (jumpDialog?.open || shortcutsDialog?.open) {\n return;\n }\n const target = e.target as HTMLElement | null;\n const t = target?.tagName;\n if (t == 'INPUT' || t == 'SELECT' || t == 'TEXTAREA') {\n return;\n }\n if (target?.contentEditable == 'true') {\n return;\n }\n if (e.metaKey || e.ctrlKey) {\n return;\n }\n const ch = String.fromCharCode(e.which);\n switch (ch) {\n case 'f':\n case 'F':\n e.preventDefault();\n if (jumpFilter) {\n jumpFilter.value = '';\n }\n jumpDialog?.showModal();\n jumpFilter?.focus();\n updateJumpList('');\n break;\n case '?':\n shortcutsDialog?.showModal();\n break;\n }\n});\n\nconst jumpOutlineInput = document.querySelector('.js-jumpToInput');\nif (jumpOutlineInput) {\n jumpOutlineInput.addEventListener('click', () => {\n if (jumpFilter) {\n jumpFilter.value = '';\n }\n updateJumpList('');\n });\n}\n\nexport {};\n", "/*!\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n// This file implements the playground implementation of the documentation\n// page. The playground involves a \"play\" button that allows you to open up\n// a new link to play.golang.org using the example code.\n\n// The CSS is in static/frontend/unit/main/_doc.css\n\n/**\n * CSS classes used by PlaygroundExampleController\n */\nconst PlayExampleClassName = {\n PLAY_HREF: '.js-exampleHref',\n PLAY_CONTAINER: '.js-exampleContainer',\n EXAMPLE_INPUT: '.Documentation-exampleCode',\n EXAMPLE_OUTPUT: '.Documentation-exampleOutput',\n EXAMPLE_ERROR: '.Documentation-exampleError',\n PLAY_BUTTON: '.Documentation-examplePlayButton',\n SHARE_BUTTON: '.Documentation-exampleShareButton',\n FORMAT_BUTTON: '.Documentation-exampleFormatButton',\n RUN_BUTTON: '.Documentation-exampleRunButton',\n};\n\n/**\n * This controller enables playground examples to expand their dropdown or\n * generate shareable Go Playground URLs.\n */\nexport class PlaygroundExampleController {\n /**\n * The anchor tag used to identify the container with an example href.\n * There is only one in an example container div.\n */\n private readonly anchorEl: HTMLAnchorElement | null;\n\n /**\n * The error element\n */\n private readonly errorEl: Element | null;\n\n /**\n * Buttons that redirect to an example's playground, this element\n * only exists in executable examples.\n */\n private readonly playButtonEl: Element | null;\n private readonly shareButtonEl: Element | null;\n\n /**\n * Button that formats the code in an example's playground.\n */\n private readonly formatButtonEl: Element | null;\n\n /**\n * Button that runs the code in an example's playground, this element\n * only exists in executable examples.\n */\n private readonly runButtonEl: Element | null;\n\n /**\n * The executable code of an example.\n */\n private readonly inputEl: HTMLTextAreaElement | null;\n\n /**\n * The output of the given example code. This only exists if the\n * author of the package provides an output for this example.\n */\n private readonly outputEl: Element | null;\n\n /**\n * @param exampleEl The div that contains playground content for the given example.\n */\n constructor(private readonly exampleEl: HTMLDetailsElement) {\n this.exampleEl = exampleEl;\n this.anchorEl = exampleEl.querySelector('a');\n this.errorEl = exampleEl.querySelector(PlayExampleClassName.EXAMPLE_ERROR);\n this.playButtonEl = exampleEl.querySelector(PlayExampleClassName.PLAY_BUTTON);\n this.shareButtonEl = exampleEl.querySelector(PlayExampleClassName.SHARE_BUTTON);\n this.formatButtonEl = exampleEl.querySelector(PlayExampleClassName.FORMAT_BUTTON);\n this.runButtonEl = exampleEl.querySelector(PlayExampleClassName.RUN_BUTTON);\n this.inputEl = this.makeTextArea(exampleEl.querySelector(PlayExampleClassName.EXAMPLE_INPUT));\n this.outputEl = exampleEl.querySelector(PlayExampleClassName.EXAMPLE_OUTPUT);\n\n // This is legacy listener to be replaced the listener for shareButtonEl.\n this.playButtonEl?.addEventListener('click', () => this.handleShareButtonClick());\n this.shareButtonEl?.addEventListener('click', () => this.handleShareButtonClick());\n this.formatButtonEl?.addEventListener('click', () => this.handleFormatButtonClick());\n this.runButtonEl?.addEventListener('click', () => this.handleRunButtonClick());\n\n if (!this.inputEl) return;\n\n this.resize();\n this.inputEl.addEventListener('keyup', () => this.resize());\n this.inputEl.addEventListener('keydown', e => this.onKeydown(e));\n }\n\n /**\n * Replace the pre element with a textarea. The examples are initially rendered\n * as pre elements so they're fully visible when JS is disabled.\n */\n makeTextArea(el: Element | null): HTMLTextAreaElement {\n const t = document.createElement('textarea');\n t.classList.add('Documentation-exampleCode', 'code');\n t.spellcheck = false;\n t.value = el?.textContent ?? '';\n el?.parentElement?.replaceChild(t, el);\n return t;\n }\n\n /**\n * Retrieve the hash value of the anchor element.\n */\n getAnchorHash(): string | undefined {\n return this.anchorEl?.hash;\n }\n\n /**\n * Expands the current playground example.\n */\n expand(): void {\n this.exampleEl.open = true;\n }\n\n /**\n * Resizes the input element to accomodate the amount of text present.\n */\n private resize(): void {\n if (this.inputEl?.value) {\n const numLineBreaks = (this.inputEl.value.match(/\\n/g) || []).length;\n // min-height + lines x line-height + padding + border\n this.inputEl.style.height = `${(20 + numLineBreaks * 20 + 12 + 2) / 16}rem`;\n }\n }\n\n /**\n * Handler to override keyboard behavior in the playground's\n * textarea element.\n *\n * Tab key inserts tabs into the example playground instead of\n * switching to the next interactive element.\n * @param e input element keyboard event.\n */\n private onKeydown(e: KeyboardEvent) {\n if (e.key === 'Tab') {\n document.execCommand('insertText', false, '\\t');\n e.preventDefault();\n }\n }\n\n /**\n * Changes the text of the example's input box.\n */\n private setInputText(output: string) {\n if (this.inputEl) {\n this.inputEl.value = output;\n }\n }\n\n /**\n * Changes the text of the example's output box.\n */\n private setOutputText(output: string) {\n if (this.outputEl) {\n this.outputEl.textContent = output;\n }\n }\n\n /**\n * Sets the error message text and overwrites\n * output box to indicate a failed response.\n */\n private setErrorText(err: string) {\n if (this.errorEl) {\n this.errorEl.textContent = err;\n }\n this.setOutputText('An error has occurred\u2026');\n }\n\n /**\n * Opens a new window to play.golang.org using the\n * example snippet's code in the playground.\n */\n private handleShareButtonClick() {\n const PLAYGROUND_BASE_URL = 'https://play.golang.org/p/';\n\n this.setOutputText('Waiting for remote server\u2026');\n\n fetch('/play/share', {\n method: 'POST',\n body: this.inputEl?.value,\n })\n .then(res => res.text())\n .then(shareId => {\n const href = PLAYGROUND_BASE_URL + shareId;\n this.setOutputText(`<a href=\"${href}\">${href}</a>`);\n window.open(href);\n })\n .catch(err => {\n this.setErrorText(err);\n });\n }\n\n /**\n * Runs gofmt on the example snippet in the playground.\n */\n private handleFormatButtonClick() {\n this.setOutputText('Waiting for remote server\u2026');\n const body = new FormData();\n body.append('body', this.inputEl?.value ?? '');\n\n fetch('/play/fmt', {\n method: 'POST',\n body: body,\n })\n .then(res => res.json())\n .then(({ Body, Error }) => {\n this.setOutputText(Error || 'Done.');\n if (Body) {\n this.setInputText(Body);\n this.resize();\n }\n })\n .catch(err => {\n this.setErrorText(err);\n });\n }\n\n /**\n * Runs the code snippet in the example playground.\n */\n private handleRunButtonClick() {\n this.setOutputText('Waiting for remote server\u2026');\n\n fetch('/play/compile', {\n method: 'POST',\n body: JSON.stringify({ body: this.inputEl?.value, version: 2 }),\n })\n .then(res => res.json())\n .then(async ({ Events, Errors }) => {\n this.setOutputText(Errors || '');\n for (const e of Events || []) {\n this.setOutputText(e.Message);\n await new Promise(resolve => setTimeout(resolve, e.Delay / 1000000));\n }\n })\n .catch(err => {\n this.setErrorText(err);\n });\n }\n}\n\nconst exampleHashRegex = location.hash.match(/^#(example-.*)$/);\nif (exampleHashRegex) {\n const exampleHashEl = document.getElementById(exampleHashRegex[1]) as HTMLDetailsElement;\n if (exampleHashEl) {\n exampleHashEl.open = true;\n }\n}\n\n// We use a spread operator to convert a nodelist into an array of elements.\nconst exampleHrefs = [\n ...document.querySelectorAll<HTMLAnchorElement>(PlayExampleClassName.PLAY_HREF),\n];\n\n/**\n * Sometimes exampleHrefs and playContainers are in different order, so we\n * find an exampleHref from a common hash.\n * @param playContainer - playground container\n */\nconst findExampleHash = (playContainer: PlaygroundExampleController) =>\n exampleHrefs.find(ex => {\n return ex.hash === playContainer.getAnchorHash();\n });\n\nfor (const el of document.querySelectorAll(PlayExampleClassName.PLAY_CONTAINER)) {\n // There should be the same amount of hrefs referencing examples as example containers.\n const playContainer = new PlaygroundExampleController(el as HTMLDetailsElement);\n const exampleHref = findExampleHash(playContainer);\n if (exampleHref) {\n exampleHref.addEventListener('click', () => {\n playContainer.expand();\n });\n } else {\n console.warn('example href not found');\n }\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { TreeNavController } from './tree.js';\n\nexport class SelectNavController {\n constructor(private el: Element) {\n this.el.addEventListener('change', e => {\n const target = e.target as HTMLSelectElement;\n let href = target.value;\n if (!target.value.startsWith('/')) {\n href = '/' + href;\n }\n window.location.href = href;\n });\n }\n}\n\nexport function makeSelectNav(tree: TreeNavController): HTMLLabelElement {\n const label = document.createElement('label');\n label.classList.add('go-Label');\n label.setAttribute('aria-label', 'Menu');\n const select = document.createElement('select');\n select.classList.add('go-Select', 'js-selectNav');\n label.appendChild(select);\n const outline = document.createElement('optgroup');\n outline.label = 'Outline';\n select.appendChild(outline);\n const groupMap: Record<string, HTMLOptGroupElement> = {};\n let group: HTMLOptGroupElement;\n for (const t of tree.treeitems) {\n if (Number(t.depth) > 4) continue;\n if (t.groupTreeitem) {\n group = groupMap[t.groupTreeitem.label];\n if (!group) {\n group = groupMap[t.groupTreeitem.label] = document.createElement('optgroup');\n group.label = t.groupTreeitem.label;\n select.appendChild(group);\n }\n } else {\n group = outline;\n }\n const o = document.createElement('option');\n o.label = t.label;\n o.textContent = t.label;\n o.value = (t.el as HTMLAnchorElement).href.replace(window.location.origin, '').replace('/', '');\n group.appendChild(o);\n }\n tree.addObserver(t => {\n const hash = (t.el as HTMLAnchorElement).hash;\n const value = select.querySelector<HTMLOptionElement>(`[value$=\"${hash}\"]`)?.value;\n if (value) {\n select.value = value;\n }\n }, 50);\n return label;\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * TreeNavController is the navigation tree component of the documentation page.\n * It adds accessiblity attributes to a tree, observes the heading elements\n * focus the topmost link for headings visible on the page, and implements the\n * WAI-ARIA Treeview Design Pattern with full\n * [keyboard support](https://www.w3.org/TR/wai-aria-practices/examples/treeview/treeview-2/treeview-2a.html#kbd_label).\n */\nexport class TreeNavController {\n treeitems: TreeItem[];\n\n /**\n * firstChars is the first character of each treeitem in the same order\n * as this.treeitems. We use this array to set focus by character when\n * navigating the tree with a keyboard.\n */\n private firstChars: string[];\n private firstTreeitem: TreeItem | null;\n private lastTreeitem: TreeItem | null;\n private observerCallbacks: ((t: TreeItem) => void)[];\n\n constructor(private el: HTMLElement) {\n this.treeitems = [];\n this.firstChars = [];\n this.firstTreeitem = null;\n this.lastTreeitem = null;\n this.observerCallbacks = [];\n this.init();\n }\n\n private init(): void {\n this.handleResize();\n window.addEventListener('resize', this.handleResize);\n this.findTreeItems();\n this.updateVisibleTreeitems();\n this.observeTargets();\n if (this.firstTreeitem) {\n this.firstTreeitem.el.tabIndex = 0;\n }\n }\n\n private handleResize = (): void => {\n this.el.style.setProperty('--js-tree-height', '100vh');\n this.el.style.setProperty('--js-tree-height', this.el.clientHeight + 'px');\n };\n\n private observeTargets() {\n this.addObserver(treeitem => {\n this.expandTreeitem(treeitem);\n this.setSelected(treeitem);\n // TODO: Fix scroll issue in https://golang.org/issue/47450.\n // treeitem.el.scrollIntoView({ block: 'nearest' });\n });\n\n const targets = new Map<string, boolean>();\n const observer = new IntersectionObserver(\n entries => {\n for (const entry of entries) {\n targets.set(entry.target.id, entry.isIntersecting || entry.intersectionRatio === 1);\n }\n for (const [id, isIntersecting] of targets) {\n if (isIntersecting) {\n const active = this.treeitems.find(t =>\n (t.el as HTMLAnchorElement)?.href.endsWith(`#${id}`)\n );\n if (active) {\n for (const fn of this.observerCallbacks) {\n fn(active);\n }\n }\n break;\n }\n }\n },\n {\n threshold: 1.0,\n rootMargin: '-60px 0px 0px 0px',\n }\n );\n\n for (const href of this.treeitems.map(t => t.el.getAttribute('href'))) {\n if (href) {\n const id = href.replace(window.location.origin, '').replace('/', '').replace('#', '');\n const target = document.getElementById(id);\n if (target) {\n observer.observe(target);\n }\n }\n }\n }\n\n addObserver(fn: (t: TreeItem) => void, delay = 200): void {\n this.observerCallbacks.push(debounce(fn, delay));\n }\n\n setFocusToNextItem(currentItem: TreeItem): void {\n let nextItem = null;\n for (let i = currentItem.index + 1; i < this.treeitems.length; i++) {\n const ti = this.treeitems[i];\n if (ti.isVisible) {\n nextItem = ti;\n break;\n }\n }\n if (nextItem) {\n this.setFocusToItem(nextItem);\n }\n }\n\n setFocusToPreviousItem(currentItem: TreeItem): void {\n let prevItem = null;\n for (let i = currentItem.index - 1; i > -1; i--) {\n const ti = this.treeitems[i];\n if (ti.isVisible) {\n prevItem = ti;\n break;\n }\n }\n if (prevItem) {\n this.setFocusToItem(prevItem);\n }\n }\n\n setFocusToParentItem(currentItem: TreeItem): void {\n if (currentItem.groupTreeitem) {\n this.setFocusToItem(currentItem.groupTreeitem);\n }\n }\n\n setFocusToFirstItem(): void {\n this.firstTreeitem && this.setFocusToItem(this.firstTreeitem);\n }\n\n setFocusToLastItem(): void {\n this.lastTreeitem && this.setFocusToItem(this.lastTreeitem);\n }\n\n setSelected(currentItem: TreeItem): void {\n for (const l1 of this.el.querySelectorAll('[aria-expanded=\"true\"]')) {\n if (l1 === currentItem.el) continue;\n if (!l1.nextElementSibling?.contains(currentItem.el)) {\n l1.setAttribute('aria-expanded', 'false');\n }\n }\n for (const l1 of this.el.querySelectorAll('[aria-selected]')) {\n if (l1 !== currentItem.el) {\n l1.setAttribute('aria-selected', 'false');\n }\n }\n currentItem.el.setAttribute('aria-selected', 'true');\n this.updateVisibleTreeitems();\n this.setFocusToItem(currentItem, false);\n }\n\n expandTreeitem(treeitem: TreeItem): void {\n let currentItem: TreeItem | null = treeitem;\n while (currentItem) {\n if (currentItem.isExpandable) {\n currentItem.el.setAttribute('aria-expanded', 'true');\n }\n currentItem = currentItem.groupTreeitem;\n }\n this.updateVisibleTreeitems();\n }\n\n expandAllSiblingItems(currentItem: TreeItem): void {\n for (const ti of this.treeitems) {\n if (ti.groupTreeitem === currentItem.groupTreeitem && ti.isExpandable) {\n this.expandTreeitem(ti);\n }\n }\n }\n\n collapseTreeitem(currentItem: TreeItem): void {\n let groupTreeitem = null;\n\n if (currentItem.isExpanded()) {\n groupTreeitem = currentItem;\n } else {\n groupTreeitem = currentItem.groupTreeitem;\n }\n\n if (groupTreeitem) {\n groupTreeitem.el.setAttribute('aria-expanded', 'false');\n this.updateVisibleTreeitems();\n this.setFocusToItem(groupTreeitem);\n }\n }\n\n setFocusByFirstCharacter(currentItem: TreeItem, char: string): void {\n let start: number, index: number;\n char = char.toLowerCase();\n\n // Get start index for search based on position of currentItem\n start = currentItem.index + 1;\n if (start === this.treeitems.length) {\n start = 0;\n }\n\n // Check remaining slots in the menu\n index = this.getIndexFirstChars(start, char);\n\n // If not found in remaining slots, check from beginning\n if (index === -1) {\n index = this.getIndexFirstChars(0, char);\n }\n\n // If match was found...\n if (index > -1) {\n this.setFocusToItem(this.treeitems[index]);\n }\n }\n\n private findTreeItems() {\n const findItems = (el: HTMLElement, group: TreeItem | null) => {\n let ti = group;\n let curr = el.firstElementChild as HTMLElement;\n while (curr) {\n if (curr.tagName === 'A' || curr.tagName === 'SPAN') {\n ti = new TreeItem(curr, this, group);\n this.treeitems.push(ti);\n this.firstChars.push(ti.label.substring(0, 1).toLowerCase());\n }\n if (curr.firstElementChild) {\n findItems(curr, ti);\n }\n curr = curr.nextElementSibling as HTMLElement;\n }\n };\n findItems(this.el as HTMLElement, null);\n this.treeitems.map((ti, idx) => (ti.index = idx));\n }\n\n private updateVisibleTreeitems(): void {\n this.firstTreeitem = this.treeitems[0];\n\n for (const ti of this.treeitems) {\n let parent = ti.groupTreeitem;\n ti.isVisible = true;\n while (parent && parent.el !== this.el) {\n if (!parent.isExpanded()) {\n ti.isVisible = false;\n }\n parent = parent.groupTreeitem;\n }\n if (ti.isVisible) {\n this.lastTreeitem = ti;\n }\n }\n }\n\n private setFocusToItem(treeitem: TreeItem, focusEl = true) {\n treeitem.el.tabIndex = 0;\n if (focusEl) {\n treeitem.el.focus();\n }\n for (const ti of this.treeitems) {\n if (ti !== treeitem) {\n ti.el.tabIndex = -1;\n }\n }\n }\n\n private getIndexFirstChars(startIndex: number, char: string): number {\n for (let i = startIndex; i < this.firstChars.length; i++) {\n if (this.treeitems[i].isVisible && char === this.firstChars[i]) {\n return i;\n }\n }\n return -1;\n }\n}\n\nclass TreeItem {\n el: HTMLElement;\n groupTreeitem: TreeItem | null;\n label: string;\n isExpandable: boolean;\n isVisible: boolean;\n depth: number;\n index: number;\n\n private tree: TreeNavController;\n private isInGroup: boolean;\n\n constructor(el: HTMLElement, treeObj: TreeNavController, group: TreeItem | null) {\n el.tabIndex = -1;\n this.el = el;\n this.groupTreeitem = group;\n this.label = el.textContent?.trim() ?? '';\n this.tree = treeObj;\n this.depth = (group?.depth || 0) + 1;\n this.index = 0;\n\n const parent = el.parentElement;\n if (parent?.tagName.toLowerCase() === 'li') {\n parent?.setAttribute('role', 'none');\n }\n el.setAttribute('aria-level', this.depth + '');\n if (el.getAttribute('aria-label')) {\n this.label = el?.getAttribute('aria-label')?.trim() ?? '';\n }\n\n this.isExpandable = false;\n this.isVisible = false;\n this.isInGroup = !!group;\n\n let curr = el.nextElementSibling;\n while (curr) {\n if (curr.tagName.toLowerCase() == 'ul') {\n const groupId = `${group?.label ?? ''} nav group ${this.label}`.replace(/[\\W_]+/g, '_');\n el.setAttribute('aria-owns', groupId);\n el.setAttribute('aria-expanded', 'false');\n curr.setAttribute('role', 'group');\n curr.setAttribute('id', groupId);\n this.isExpandable = true;\n break;\n }\n\n curr = curr.nextElementSibling;\n }\n this.init();\n }\n\n private init() {\n this.el.tabIndex = -1;\n if (!this.el.getAttribute('role')) {\n this.el.setAttribute('role', 'treeitem');\n }\n this.el.addEventListener('keydown', this.handleKeydown.bind(this));\n this.el.addEventListener('click', this.handleClick.bind(this));\n this.el.addEventListener('focus', this.handleFocus.bind(this));\n this.el.addEventListener('blur', this.handleBlur.bind(this));\n }\n\n isExpanded() {\n if (this.isExpandable) {\n return this.el.getAttribute('aria-expanded') === 'true';\n }\n\n return false;\n }\n\n isSelected() {\n return this.el.getAttribute('aria-selected') === 'true';\n }\n\n private handleClick(event: MouseEvent) {\n // only process click events that directly happened on this treeitem\n if (event.target !== this.el && event.target !== this.el.firstElementChild) {\n return;\n }\n if (this.isExpandable) {\n if (this.isExpanded() && this.isSelected()) {\n this.tree.collapseTreeitem(this);\n } else {\n this.tree.expandTreeitem(this);\n }\n event.stopPropagation();\n }\n this.tree.setSelected(this);\n }\n\n private handleFocus() {\n let el = this.el;\n if (this.isExpandable) {\n el = (el.firstElementChild as HTMLElement) ?? el;\n }\n el.classList.add('focus');\n }\n\n private handleBlur() {\n let el = this.el;\n if (this.isExpandable) {\n el = (el.firstElementChild as HTMLElement) ?? el;\n }\n el.classList.remove('focus');\n }\n\n private handleKeydown(event: KeyboardEvent) {\n if (event.altKey || event.ctrlKey || event.metaKey) {\n return;\n }\n\n let captured = false;\n switch (event.key) {\n case ' ':\n case 'Enter':\n if (this.isExpandable) {\n if (this.isExpanded() && this.isSelected()) {\n this.tree.collapseTreeitem(this);\n } else {\n this.tree.expandTreeitem(this);\n }\n captured = true;\n } else {\n event.stopPropagation();\n }\n this.tree.setSelected(this);\n break;\n\n case 'ArrowUp':\n this.tree.setFocusToPreviousItem(this);\n captured = true;\n break;\n\n case 'ArrowDown':\n this.tree.setFocusToNextItem(this);\n captured = true;\n break;\n\n case 'ArrowRight':\n if (this.isExpandable) {\n if (this.isExpanded()) {\n this.tree.setFocusToNextItem(this);\n } else {\n this.tree.expandTreeitem(this);\n }\n }\n captured = true;\n break;\n\n case 'ArrowLeft':\n if (this.isExpandable && this.isExpanded()) {\n this.tree.collapseTreeitem(this);\n captured = true;\n } else {\n if (this.isInGroup) {\n this.tree.setFocusToParentItem(this);\n captured = true;\n }\n }\n break;\n\n case 'Home':\n this.tree.setFocusToFirstItem();\n captured = true;\n break;\n\n case 'End':\n this.tree.setFocusToLastItem();\n captured = true;\n break;\n\n default:\n if (event.key.length === 1 && event.key.match(/\\S/)) {\n if (event.key == '*') {\n this.tree.expandAllSiblingItems(this);\n } else {\n this.tree.setFocusByFirstCharacter(this, event.key);\n }\n captured = true;\n }\n break;\n }\n\n if (captured) {\n event.stopPropagation();\n event.preventDefault();\n }\n }\n}\n\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nfunction debounce<T extends (...args: any[]) => any>(func: T, wait: number) {\n let timeout: ReturnType<typeof setTimeout> | null;\n return (...args: Parameters<T>) => {\n const later = () => {\n timeout = null;\n func(...args);\n };\n if (timeout) {\n clearTimeout(timeout);\n }\n timeout = setTimeout(later, wait);\n };\n}\n", "/*!\n * @license\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * Controller for a table element with expandable rows. Adds event listeners to\n * a toggle within a table row that controls visiblity of additional related\n * rows in the table.\n *\n * @example\n * ```typescript\n * import {ExpandableRowsTableController} from '/static/js/table';\n *\n * const el = document .querySelector<HTMLTableElement>('.js-myTableElement')\n * new ExpandableRowsTableController(el));\n * ```\n */\nexport class ExpandableRowsTableController {\n private rows: HTMLTableRowElement[];\n private toggles: HTMLButtonElement[];\n\n /**\n * Create a table controller.\n * @param table - The table element to which the controller binds.\n */\n constructor(private table: HTMLTableElement, private toggleAll?: HTMLButtonElement | null) {\n this.rows = Array.from(table.querySelectorAll<HTMLTableRowElement>('[data-aria-controls]'));\n this.toggles = Array.from(this.table.querySelectorAll('[aria-expanded]'));\n this.setAttributes();\n this.attachEventListeners();\n this.update();\n }\n\n /**\n * setAttributes sets data-aria-* and data-id attributes to regular\n * html attributes as a workaround for limitations from safehtml.\n */\n private setAttributes() {\n for (const a of ['data-aria-controls', 'data-aria-labelledby', 'data-id']) {\n this.table.querySelectorAll(`[${a}]`).forEach(t => {\n t.setAttribute(a.replace('data-', ''), t.getAttribute(a) ?? '');\n t.removeAttribute(a);\n });\n }\n }\n\n private attachEventListeners() {\n this.rows.forEach(t => {\n t.addEventListener('click', e => {\n this.handleToggleClick(e);\n });\n });\n this.toggleAll?.addEventListener('click', () => {\n this.expandAllItems();\n });\n\n document.addEventListener('keydown', e => {\n if ((e.ctrlKey || e.metaKey) && e.key === 'f') {\n this.expandAllItems();\n }\n });\n }\n\n private handleToggleClick(e: MouseEvent) {\n let target = e.currentTarget as HTMLTableRowElement | null;\n if (!target?.hasAttribute('aria-expanded')) {\n target = this.table.querySelector(\n `button[aria-controls=\"${target?.getAttribute('aria-controls')}\"]`\n );\n }\n const isExpanded = target?.getAttribute('aria-expanded') === 'true';\n target?.setAttribute('aria-expanded', isExpanded ? 'false' : 'true');\n e.stopPropagation();\n this.update();\n }\n\n expandAllItems = (): void => {\n this.toggles.map(t => t.setAttribute('aria-expanded', 'true'));\n this.update();\n };\n\n private collapseAllItems = () => {\n this.toggles.map(t => t.setAttribute('aria-expanded', 'false'));\n this.update();\n };\n\n private update = () => {\n this.updateVisibleItems();\n setTimeout(() => this.updateGlobalToggle());\n };\n\n private updateVisibleItems() {\n this.rows.map(t => {\n const isExpanded = t?.getAttribute('aria-expanded') === 'true';\n const rowIds = t?.getAttribute('aria-controls')?.trimEnd().split(' ');\n rowIds?.map(id => {\n const target = document.getElementById(`${id}`);\n if (isExpanded) {\n target?.classList.add('visible');\n target?.classList.remove('hidden');\n } else {\n target?.classList.add('hidden');\n target?.classList.remove('visible');\n }\n });\n });\n }\n\n private updateGlobalToggle() {\n if (!this.toggleAll) return;\n if (this.rows.some(t => t.hasAttribute('aria-expanded'))) {\n this.toggleAll.style.display = 'block';\n }\n const someCollapsed = this.toggles.some(el => el.getAttribute('aria-expanded') === 'false');\n if (someCollapsed) {\n this.toggleAll.innerText = 'Expand all';\n this.toggleAll.onclick = this.expandAllItems;\n } else {\n this.toggleAll.innerText = 'Collapse all';\n this.toggleAll.onclick = this.collapseAllItems;\n }\n }\n}\n", "import '../../../shared/jump/jump';\nimport '../../../shared/playground/playground';\n\nimport { SelectNavController, makeSelectNav } from '../../../shared/outline/select';\nimport { TreeNavController } from '../../../shared/outline/tree';\nimport { ExpandableRowsTableController } from '../../../shared/table/table';\n\nconst directories = document.querySelector<HTMLTableElement>('.js-expandableTable');\nif (directories) {\n const table = new ExpandableRowsTableController(\n directories,\n document.querySelector<HTMLButtonElement>('.js-expandAllDirectories')\n );\n // Expand directories on page load with expand-directories query param.\n if (window.location.search.includes('expand-directories')) {\n table.expandAllItems();\n }\n}\n\nconst treeEl = document.querySelector<HTMLElement>('.js-tree');\nif (treeEl) {\n const treeCtrl = new TreeNavController(treeEl);\n const select = makeSelectNav(treeCtrl);\n const mobileNav = document.querySelector('.js-mainNavMobile');\n if (mobileNav && mobileNav.firstElementChild) {\n mobileNav?.replaceChild(select, mobileNav.firstElementChild);\n }\n if (select.firstElementChild) {\n new SelectNavController(select.firstElementChild);\n }\n}\n\n/**\n * Event handlers for expanding and collapsing the readme section.\n */\nconst readme = document.querySelector('.js-readme');\nconst readmeContent = document.querySelector('.js-readmeContent');\nconst readmeOutline = document.querySelector('.js-readmeOutline');\nconst readmeExpand = document.querySelectorAll('.js-readmeExpand');\nconst readmeCollapse = document.querySelector('.js-readmeCollapse');\nconst mobileNavSelect = document.querySelector<HTMLSelectElement>('.DocNavMobile-select');\nif (readme && readmeContent && readmeOutline && readmeExpand.length && readmeCollapse) {\n if (window.location.hash.includes('readme')) {\n readme.classList.add('UnitReadme--expanded');\n }\n mobileNavSelect?.addEventListener('change', e => {\n if ((e.target as HTMLSelectElement).value.startsWith('readme-')) {\n readme.classList.add('UnitReadme--expanded');\n }\n });\n readmeExpand.forEach(el =>\n el.addEventListener('click', e => {\n e.preventDefault();\n readme.classList.add('UnitReadme--expanded');\n readme.scrollIntoView();\n })\n );\n readmeCollapse.addEventListener('click', e => {\n e.preventDefault();\n readme.classList.remove('UnitReadme--expanded');\n if (readmeExpand[1]) {\n readmeExpand[1].scrollIntoView({ block: 'center' });\n }\n });\n readmeContent.addEventListener('keyup', () => {\n readme.classList.add('UnitReadme--expanded');\n });\n readmeContent.addEventListener('click', () => {\n readme.classList.add('UnitReadme--expanded');\n });\n readmeOutline.addEventListener('click', () => {\n readme.classList.add('UnitReadme--expanded');\n });\n document.addEventListener('keydown', e => {\n if ((e.ctrlKey || e.metaKey) && e.key === 'f') {\n readme.classList.add('UnitReadme--expanded');\n }\n });\n}\n\n/**\n * Expand details items that are focused. This will expand\n * deprecated symbols when they are navigated to from the index\n * or a direct link.\n */\nfunction openDeprecatedSymbol() {\n if (!location.hash) return;\n const heading = document.querySelector(location.hash);\n const grandParent = heading?.parentElement?.parentElement as HTMLDetailsElement | null;\n if (grandParent?.nodeName === 'DETAILS') {\n grandParent.open = true;\n }\n}\nopenDeprecatedSymbol();\nwindow.addEventListener('hashchange', () => openDeprecatedSymbol());\n\n/**\n * Listen for changes in the build context dropdown.\n */\ndocument.querySelectorAll('.js-buildContextSelect').forEach(el => {\n el.addEventListener('change', e => {\n window.location.search = `?GOOS=${(e.target as HTMLSelectElement).value}`;\n });\n});\n"],
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diff --git a/static/frontend/unit/unit.js b/static/frontend/unit/unit.js
index 57bb097..63cbf79 100644
--- a/static/frontend/unit/unit.js
+++ b/static/frontend/unit/unit.js
@@ -1,4 +1,4 @@
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+var a=3.5,c=2.5,v=class{constructor(i,r,t){this.mainHeader=i;this.mainNav=r;this.mainAside=t;this.handleDoubleClick=i=>{var t,e;i.target===((t=this.mainHeader)==null?void 0:t.lastElementChild)&&((e=window.getSelection())==null||e.removeAllRanges(),window.scrollTo({top:0,behavior:"smooth"}))};this.handleResize=()=>{let i=(r,t)=>document.documentElement.style.setProperty(r,t);i("--js-unit-header-height","0"),setTimeout(()=>{var t,e;let r=((e=(t=this.mainHeader)==null?void 0:t.getBoundingClientRect().height)!=null?e:0)/16;i("--js-unit-header-height",`${r}rem`),i("--js-sticky-header-height",`${a}rem`),i("--js-unit-header-top",`${(r-a)*-1}rem`)})};this.headerObserver=new IntersectionObserver(([e])=>{if(e.intersectionRatio<1)for(let s of document.querySelectorAll('[class^="go-Main-header"'))s.setAttribute("data-fixed","true");else{for(let s of document.querySelectorAll('[class^="go-Main-header"'))s.removeAttribute("data-fixed");this.handleResize()}},{threshold:1,rootMargin:`${c*16}px`}),this.navObserver=new IntersectionObserver(([e])=>{var s,n,h,l;e.intersectionRatio<1?((s=this.mainNav)==null||s.classList.add("go-Main-nav--fixed"),(n=this.mainNav)==null||n.setAttribute("data-fixed","true")):((h=this.mainNav)==null||h.classList.remove("go-Main-nav--fixed"),(l=this.mainNav)==null||l.removeAttribute("data-fixed"))},{threshold:1,rootMargin:`-${a*16+10}px`}),this.asideObserver=new IntersectionObserver(([e])=>{var s,n;e.intersectionRatio<1?(s=this.mainHeader)==null||s.setAttribute("data-raised","true"):(n=this.mainHeader)==null||n.removeAttribute("data-raised")},{threshold:1,rootMargin:`-${a*16+20}px 0px 0px 0px`}),this.init()}init(){var i,r,t;if(this.handleResize(),window.addEventListener("resize",this.handleResize),(i=this.mainHeader)==null||i.addEventListener("dblclick",this.handleDoubleClick),(r=this.mainHeader)==null?void 0:r.hasChildNodes()){let e=document.createElement("div");this.mainHeader.prepend(e),this.headerObserver.observe(e)}if((t=this.mainNav)==null?void 0:t.hasChildNodes()){let e=document.createElement("div");this.mainNav.prepend(e),this.navObserver.observe(e)}if(this.mainAside){let e=document.createElement("div");this.mainAside.prepend(e),this.asideObserver.observe(e)}}},d=o=>document.querySelector(o);new v(d(".js-mainHeader"),d(".js-mainNav"),d(".js-mainAside"));export{v as MainLayoutController};
/**
* @license
* Copyright 2021 The Go Authors. All rights reserved.
diff --git a/static/frontend/unit/unit.js.map b/static/frontend/unit/unit.js.map
index 979853c..2cf477e 100644
--- a/static/frontend/unit/unit.js.map
+++ b/static/frontend/unit/unit.js.map
@@ -2,6 +2,6 @@
"version": 3,
"sources": ["unit.ts"],
"sourcesContent": ["/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nconst headerHeight = 3.5;\nconst breadcumbHeight = 2.5;\n\n/**\n * MainLayoutController calculates dynamic height values for header elements\n * to support variable size sticky positioned elements in the header so that\n * banners and breadcumbs may overflow to multiple lines.\n */\nexport class MainLayoutController {\n private headerObserver: IntersectionObserver;\n private navObserver: IntersectionObserver;\n private asideObserver: IntersectionObserver;\n\n constructor(\n private mainHeader?: Element | null,\n private mainNav?: Element | null,\n private mainAside?: Element | null\n ) {\n this.headerObserver = new IntersectionObserver(\n ([e]) => {\n if (e.intersectionRatio < 1) {\n for (const x of document.querySelectorAll('[class^=\"go-Main-header\"')) {\n x.setAttribute('data-fixed', 'true');\n }\n } else {\n for (const x of document.querySelectorAll('[class^=\"go-Main-header\"')) {\n x.removeAttribute('data-fixed');\n }\n this.handleResize();\n }\n },\n { threshold: 1, rootMargin: `${breadcumbHeight * 16}px` }\n );\n this.navObserver = new IntersectionObserver(\n ([e]) => {\n if (e.intersectionRatio < 1) {\n this.mainNav?.classList.add('go-Main-nav--fixed');\n this.mainNav?.setAttribute('data-fixed', 'true');\n } else {\n this.mainNav?.classList.remove('go-Main-nav--fixed');\n this.mainNav?.removeAttribute('data-fixed');\n }\n },\n { threshold: 1, rootMargin: `-${headerHeight * 16 + 10}px` }\n );\n this.asideObserver = new IntersectionObserver(\n ([e]) => {\n if (e.intersectionRatio < 1) {\n this.mainHeader?.setAttribute('data-raised', 'true');\n } else {\n this.mainHeader?.removeAttribute('data-raised');\n }\n },\n { threshold: 1, rootMargin: `-${headerHeight * 16 + 20}px 0px 0px 0px` }\n );\n this.init();\n }\n\n private init() {\n this.handleResize();\n window.addEventListener('resize', this.handleResize);\n this.mainHeader?.addEventListener('dblclick', this.handleDoubleClick);\n if (this.mainHeader?.hasChildNodes()) {\n const headerSentinel = document.createElement('div');\n this.mainHeader.prepend(headerSentinel);\n this.headerObserver.observe(headerSentinel);\n }\n if (this.mainNav?.hasChildNodes()) {\n const navSentinel = document.createElement('div');\n this.mainNav.prepend(navSentinel);\n this.navObserver.observe(navSentinel);\n }\n if (this.mainAside) {\n const asideSentinel = document.createElement('div');\n this.mainAside.prepend(asideSentinel);\n this.asideObserver.observe(asideSentinel);\n }\n }\n\n private handleDoubleClick: EventListener = e => {\n const target = e.target;\n if (target === this.mainHeader?.lastElementChild) {\n window.getSelection()?.removeAllRanges();\n window.scrollTo({ top: 0, behavior: 'smooth' });\n }\n };\n\n private handleResize = () => {\n const setProp = (name: string, value: string) =>\n document.documentElement.style.setProperty(name, value);\n setProp('--js-unit-header-height', '0');\n setTimeout(() => {\n const mainHeaderHeight = (this.mainHeader?.getBoundingClientRect().height ?? 0) / 16;\n setProp('--js-unit-header-height', `${mainHeaderHeight}rem`);\n setProp('--js-sticky-header-height', `${headerHeight}rem`);\n setProp('--js-unit-header-top', `${(mainHeaderHeight - headerHeight) * -1}rem`);\n });\n };\n}\n\nconst el = <T extends HTMLElement>(selector: string) => document.querySelector<T>(selector);\nnew MainLayoutController(el('.js-mainHeader'), el('.js-mainNav'), el('.js-mainAside'));\n"],
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"names": []
}
diff --git a/static/frontend/unit/versions/versions.js b/static/frontend/unit/versions/versions.js
index aeabd83..82228c8 100644
--- a/static/frontend/unit/versions/versions.js
+++ b/static/frontend/unit/versions/versions.js
@@ -1,4 +1,4 @@
-(()=>{var i=class{constructor(){this.expand=document.querySelector(".js-versionsExpand");this.collapse=document.querySelector(".js-versionsCollapse");this.details=[...document.querySelectorAll(".js-versionDetails")];var n,e,s;if(!!((n=this.expand)==null?void 0:n.parentElement)){this.details.some(t=>t.tagName==="DETAILS")&&(this.expand.parentElement.style.display="block");for(let t of this.details)t.addEventListener("click",()=>{this.updateButtons()});(e=this.expand)==null||e.addEventListener("click",()=>{this.details.map(t=>t.open=!0),this.updateButtons()}),(s=this.collapse)==null||s.addEventListener("click",()=>{this.details.map(t=>t.open=!1),this.updateButtons()}),this.updateButtons(),this.setCurrent()}}setCurrent(){var s,t;let n=(t=(s=document.querySelector(".js-canonicalURLPath"))==null?void 0:s.dataset)==null?void 0:t.canonicalUrlPath,e=document.querySelector(`.js-versionLink[href="${n}"]`);e&&(e.style.fontWeight="bold")}updateButtons(){setTimeout(()=>{if(!this.expand||!this.collapse)return;let n,e;for(let s of this.details)n=n||s.open,e=e||!s.open;this.expand.style.display=e?"inline-block":"none",this.collapse.style.display=e?"none":"inline-block"})}};new i;})();
+var i=class{constructor(){this.expand=document.querySelector(".js-versionsExpand");this.collapse=document.querySelector(".js-versionsCollapse");this.details=[...document.querySelectorAll(".js-versionDetails")];var n,e,s;if(!!((n=this.expand)==null?void 0:n.parentElement)){this.details.some(t=>t.tagName==="DETAILS")&&(this.expand.parentElement.style.display="block");for(let t of this.details)t.addEventListener("click",()=>{this.updateButtons()});(e=this.expand)==null||e.addEventListener("click",()=>{this.details.map(t=>t.open=!0),this.updateButtons()}),(s=this.collapse)==null||s.addEventListener("click",()=>{this.details.map(t=>t.open=!1),this.updateButtons()}),this.updateButtons(),this.setCurrent()}}setCurrent(){var s,t;let n=(t=(s=document.querySelector(".js-canonicalURLPath"))==null?void 0:s.dataset)==null?void 0:t.canonicalUrlPath,e=document.querySelector(`.js-versionLink[href="${n}"]`);e&&(e.style.fontWeight="bold")}updateButtons(){setTimeout(()=>{if(!this.expand||!this.collapse)return;let n,e;for(let s of this.details)n=n||s.open,e=e||!s.open;this.expand.style.display=e?"inline-block":"none",this.collapse.style.display=e?"none":"inline-block"})}};new i;export{i as VersionsController};
/*!
* @license
* Copyright 2021 The Go Authors. All rights reserved.
diff --git a/static/frontend/unit/versions/versions.js.map b/static/frontend/unit/versions/versions.js.map
index 0f54cab..ce84766 100644
--- a/static/frontend/unit/versions/versions.js.map
+++ b/static/frontend/unit/versions/versions.js.map
@@ -1,7 +1,7 @@
{
"version": 3,
"sources": ["versions.ts"],
- "sourcesContent": ["/*!\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * VersionsController encapsulates event listeners and UI updates\n * for the versions page. As the the expandable sections containing\n * the symbol history for a package are opened and closed it toggles\n * visiblity of the buttons to expand or collapse them. On page load\n * it adds an indicator to the version that matches the version request\n * by the user for the page or the canonical url path.\n */\nclass VersionsController {\n private expand = document.querySelector<HTMLButtonElement>('.js-versionsExpand');\n private collapse = document.querySelector<HTMLButtonElement>('.js-versionsCollapse');\n private details = [...document.querySelectorAll<HTMLDetailsElement>('.js-versionDetails')];\n\n constructor() {\n if (!this.expand?.parentElement) return;\n if (this.details.some(d => d.tagName === 'DETAILS')) {\n this.expand.parentElement.style.display = 'block';\n }\n\n for (const d of this.details) {\n d.addEventListener('click', () => {\n this.updateButtons();\n });\n }\n\n this.expand?.addEventListener('click', () => {\n this.details.map(d => (d.open = true));\n this.updateButtons();\n });\n\n this.collapse?.addEventListener('click', () => {\n this.details.map(d => (d.open = false));\n this.updateButtons();\n });\n\n this.updateButtons();\n this.setCurrent();\n }\n\n /**\n * setCurrent applies the active style to the version dot\n * for the version that matches the canonical URL path.\n */\n private setCurrent() {\n const canonicalPath = document.querySelector<HTMLElement>('.js-canonicalURLPath')?.dataset\n ?.canonicalUrlPath;\n const versionLink = document.querySelector<HTMLElement>(\n `.js-versionLink[href=\"${canonicalPath}\"]`\n );\n if (versionLink) {\n versionLink.style.fontWeight = 'bold';\n }\n }\n\n private updateButtons() {\n setTimeout(() => {\n if (!this.expand || !this.collapse) return;\n let someOpen, someClosed;\n for (const d of this.details) {\n someOpen = someOpen || d.open;\n someClosed = someClosed || !d.open;\n }\n this.expand.style.display = someClosed ? 'inline-block' : 'none';\n this.collapse.style.display = someClosed ? 'none' : 'inline-block';\n });\n }\n}\n\nnew VersionsController();\n"],
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+ "sourcesContent": ["/*!\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * VersionsController encapsulates event listeners and UI updates\n * for the versions page. As the the expandable sections containing\n * the symbol history for a package are opened and closed it toggles\n * visiblity of the buttons to expand or collapse them. On page load\n * it adds an indicator to the version that matches the version request\n * by the user for the page or the canonical url path.\n */\nexport class VersionsController {\n private expand = document.querySelector<HTMLButtonElement>('.js-versionsExpand');\n private collapse = document.querySelector<HTMLButtonElement>('.js-versionsCollapse');\n private details = [...document.querySelectorAll<HTMLDetailsElement>('.js-versionDetails')];\n\n constructor() {\n if (!this.expand?.parentElement) return;\n if (this.details.some(d => d.tagName === 'DETAILS')) {\n this.expand.parentElement.style.display = 'block';\n }\n\n for (const d of this.details) {\n d.addEventListener('click', () => {\n this.updateButtons();\n });\n }\n\n this.expand?.addEventListener('click', () => {\n this.details.map(d => (d.open = true));\n this.updateButtons();\n });\n\n this.collapse?.addEventListener('click', () => {\n this.details.map(d => (d.open = false));\n this.updateButtons();\n });\n\n this.updateButtons();\n this.setCurrent();\n }\n\n /**\n * setCurrent applies the active style to the version dot\n * for the version that matches the canonical URL path.\n */\n private setCurrent() {\n const canonicalPath = document.querySelector<HTMLElement>('.js-canonicalURLPath')?.dataset\n ?.canonicalUrlPath;\n const versionLink = document.querySelector<HTMLElement>(\n `.js-versionLink[href=\"${canonicalPath}\"]`\n );\n if (versionLink) {\n versionLink.style.fontWeight = 'bold';\n }\n }\n\n private updateButtons() {\n setTimeout(() => {\n if (!this.expand || !this.collapse) return;\n let someOpen, someClosed;\n for (const d of this.details) {\n someOpen = someOpen || d.open;\n someClosed = someClosed || !d.open;\n }\n this.expand.style.display = someClosed ? 'inline-block' : 'none';\n this.collapse.style.display = someClosed ? 'none' : 'inline-block';\n });\n }\n}\n\nnew VersionsController();\n"],
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"names": []
}
diff --git a/static/frontend/unit/versions/versions.ts b/static/frontend/unit/versions/versions.ts
index 6ee0cd9..1c9458a 100644
--- a/static/frontend/unit/versions/versions.ts
+++ b/static/frontend/unit/versions/versions.ts
@@ -13,7 +13,7 @@
* it adds an indicator to the version that matches the version request
* by the user for the page or the canonical url path.
*/
-class VersionsController {
+export class VersionsController {
private expand = document.querySelector<HTMLButtonElement>('.js-versionsExpand');
private collapse = document.querySelector<HTMLButtonElement>('.js-versionsCollapse');
private details = [...document.querySelectorAll<HTMLDetailsElement>('.js-versionDetails')];
diff --git a/static/shared/analytics/analytics.js b/static/shared/analytics/analytics.js
index 3d6672f..d215807 100644
--- a/static/shared/analytics/analytics.js
+++ b/static/shared/analytics/analytics.js
@@ -1,2 +1,2 @@
-export function track(n,a,e,r){var t;(t=window.dataLayer)!=null||(window.dataLayer=[]),typeof n=="string"?window.dataLayer.push({event:n,event_category:a,event_action:e,event_label:r}):window.dataLayer.push(n)}export function func(n){var a;(a=window.dataLayer)!=null||(window.dataLayer=[]),window.dataLayer.push(n)}
+function i(n,a,e,r){var t;(t=window.dataLayer)!=null||(window.dataLayer=[]),typeof n=="string"?window.dataLayer.push({event:n,event_category:a,event_action:e,event_label:r}):window.dataLayer.push(n)}function o(n){var a;(a=window.dataLayer)!=null||(window.dataLayer=[]),window.dataLayer.push(n)}export{o as func,i as track};
//# sourceMappingURL=analytics.js.map
diff --git a/static/shared/analytics/analytics.js.map b/static/shared/analytics/analytics.js.map
index 9ac8123..36742d4 100644
--- a/static/shared/analytics/analytics.js.map
+++ b/static/shared/analytics/analytics.js.map
@@ -2,6 +2,6 @@
"version": 3,
"sources": ["analytics.ts"],
"sourcesContent": ["interface TagManagerEvent {\n /**\n * event is the name of the event, used to filter events in\n * Google Analytics.\n */\n event: string;\n\n /**\n * event_category is a name that you supply as a way to group objects\n * that to analyze. Typically, you will use the same category name\n * multiple times over related UI elements (buttons, links, etc).\n */\n event_category?: string;\n\n /**\n * event_action is used to name the type of event or interaction you\n * want to measure for a particular web object. For example, with a\n * single \"form\" category, you can analyze a number of specific events\n * with this parameter, such as: form entered, form submitted.\n */\n event_action?: string;\n\n /**\n * event_label provide additional information for events that you want\n * to analyze, such as the text label of a link.\n */\n event_label?: string;\n\n /**\n * gtm.start is used to initialize Google Tag Manager.\n */\n 'gtm.start'?: number;\n}\n\n// eslint-disable-next-line @typescript-eslint/no-unused-vars\ndeclare global {\n interface Window {\n dataLayer?: (TagManagerEvent | VoidFunction)[];\n ga?: unknown;\n }\n}\n\n/**\n * track sends events to Google Tag Manager.\n */\nexport function track(\n event: string | TagManagerEvent,\n category?: string,\n action?: string,\n label?: string\n): void {\n window.dataLayer ??= [];\n if (typeof event === 'string') {\n window.dataLayer.push({\n event,\n event_category: category,\n event_action: action,\n event_label: label,\n });\n } else {\n window.dataLayer.push(event);\n }\n}\n\n/**\n * func adds functions to run sequentionally after\n * Google Tag Manager is ready.\n */\nexport function func(fn: () => void): void {\n window.dataLayer ??= [];\n window.dataLayer.push(fn);\n}\n"],
- "mappings": "AA6CO,sBACL,EACA,EACA,EACA,EACM,CAlDR,MAmDE,UAAO,YAAP,cAAO,UAAc,IACrB,AAAI,MAAO,IAAU,SACnB,OAAO,UAAU,KAAK,CACpB,QACA,eAAgB,EAChB,aAAc,EACd,YAAa,IAGf,OAAO,UAAU,KAAK,GAQnB,qBAAc,EAAsB,CApE3C,MAqEE,UAAO,YAAP,cAAO,UAAc,IACrB,OAAO,UAAU,KAAK",
+ "mappings": "AA6CO,WACL,EACA,EACA,EACA,EACM,CAlDR,MAmDE,UAAO,YAAP,cAAO,UAAc,IACrB,AAAI,MAAO,IAAU,SACnB,OAAO,UAAU,KAAK,CACpB,QACA,eAAgB,EAChB,aAAc,EACd,YAAa,IAGf,OAAO,UAAU,KAAK,GAQnB,WAAc,EAAsB,CApE3C,MAqEE,UAAO,YAAP,cAAO,UAAc,IACrB,OAAO,UAAU,KAAK",
"names": []
}
diff --git a/static/shared/clipboard/clipboard.js b/static/shared/clipboard/clipboard.js
index 2de595f..45fcd87 100644
--- a/static/shared/clipboard/clipboard.js
+++ b/static/shared/clipboard/clipboard.js
@@ -3,5 +3,5 @@
* Copyright 2021 The Go Authors. All rights reserved.
* Use of this source code is governed by a BSD-style
* license that can be found in the LICENSE file.
- */export class ClipboardController{constructor(t){this.el=t;var e,o,i,a,s;this.data=(e=t.dataset.toCopy)!=null?e:t.innerText,!this.data&&((o=t.parentElement)==null?void 0:o.classList.contains("go-InputGroup"))&&(this.data=(s=this.data||((a=(i=t.parentElement)==null?void 0:i.querySelector("input"))==null?void 0:a.value))!=null?s:""),t.addEventListener("click",n=>this.handleCopyClick(n))}handleCopyClick(t){t.preventDefault();const e=1e3;if(!navigator.clipboard){this.showTooltipText("Unable to copy",e);return}navigator.clipboard.writeText(this.data).then(()=>{this.showTooltipText("Copied!",e)}).catch(()=>{this.showTooltipText("Unable to copy",e)})}showTooltipText(t,e){this.el.setAttribute("data-tooltip",t),setTimeout(()=>this.el.setAttribute("data-tooltip",""),e)}}
+ */class l{constructor(t){this.el=t;var e,o,i,a,s;this.data=(e=t.dataset.toCopy)!=null?e:t.innerText,!this.data&&((o=t.parentElement)==null?void 0:o.classList.contains("go-InputGroup"))&&(this.data=(s=this.data||((a=(i=t.parentElement)==null?void 0:i.querySelector("input"))==null?void 0:a.value))!=null?s:""),t.addEventListener("click",n=>this.handleCopyClick(n))}handleCopyClick(t){t.preventDefault();const e=1e3;if(!navigator.clipboard){this.showTooltipText("Unable to copy",e);return}navigator.clipboard.writeText(this.data).then(()=>{this.showTooltipText("Copied!",e)}).catch(()=>{this.showTooltipText("Unable to copy",e)})}showTooltipText(t,e){this.el.setAttribute("data-tooltip",t),setTimeout(()=>this.el.setAttribute("data-tooltip",""),e)}}export{l as ClipboardController};
//# sourceMappingURL=clipboard.js.map
diff --git a/static/shared/clipboard/clipboard.js.map b/static/shared/clipboard/clipboard.js.map
index d29f136..28064c0 100644
--- a/static/shared/clipboard/clipboard.js.map
+++ b/static/shared/clipboard/clipboard.js.map
@@ -2,6 +2,6 @@
"version": 3,
"sources": ["clipboard.ts"],
"sourcesContent": ["/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * This class decorates an element to copy arbitrary data attached via a data-\n * attribute to the clipboard.\n */\nexport class ClipboardController {\n /**\n * The data to be copied to the clipboard.\n */\n private data: string;\n\n /**\n * @param el The element that will trigger copying text to the clipboard. The text is\n * expected to be within its data-to-copy attribute.\n */\n constructor(private el: HTMLButtonElement) {\n this.data = el.dataset['toCopy'] ?? el.innerText;\n // if data-to-copy is empty and the button is part of an input group\n // capture the value of the input.\n if (!this.data && el.parentElement?.classList.contains('go-InputGroup')) {\n this.data = (this.data || el.parentElement?.querySelector('input')?.value) ?? '';\n }\n el.addEventListener('click', e => this.handleCopyClick(e));\n }\n\n /**\n * Handles when the primary element is clicked.\n */\n handleCopyClick(e: MouseEvent): void {\n e.preventDefault();\n const TOOLTIP_SHOW_DURATION_MS = 1000;\n\n // This API is not available on iOS.\n if (!navigator.clipboard) {\n this.showTooltipText('Unable to copy', TOOLTIP_SHOW_DURATION_MS);\n return;\n }\n navigator.clipboard\n .writeText(this.data)\n .then(() => {\n this.showTooltipText('Copied!', TOOLTIP_SHOW_DURATION_MS);\n })\n .catch(() => {\n this.showTooltipText('Unable to copy', TOOLTIP_SHOW_DURATION_MS);\n });\n }\n\n /**\n * Shows the given text in a tooltip for a specified amount of time, in milliseconds.\n */\n showTooltipText(text: string, durationMs: number): void {\n this.el.setAttribute('data-tooltip', text);\n setTimeout(() => this.el.setAttribute('data-tooltip', ''), durationMs);\n }\n}\n"],
- "mappings": "AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,GAWO,gCAA0B,CAU/B,YAAoB,EAAuB,CAAvB,UArBtB,cAsBI,KAAK,KAAO,KAAG,QAAQ,SAAX,OAAwB,EAAG,UAGnC,CAAC,KAAK,MAAQ,MAAG,gBAAH,cAAkB,UAAU,SAAS,mBACrD,MAAK,KAAQ,QAAK,MAAQ,SAAG,gBAAH,cAAkB,cAAc,WAAhC,cAA0C,SAAvD,OAAiE,IAEhF,EAAG,iBAAiB,QAAS,GAAK,KAAK,gBAAgB,IAMzD,gBAAgB,EAAqB,CACnC,EAAE,iBACF,KAAM,GAA2B,IAGjC,GAAI,CAAC,UAAU,UAAW,CACxB,KAAK,gBAAgB,iBAAkB,GACvC,OAEF,UAAU,UACP,UAAU,KAAK,MACf,KAAK,IAAM,CACV,KAAK,gBAAgB,UAAW,KAEjC,MAAM,IAAM,CACX,KAAK,gBAAgB,iBAAkB,KAO7C,gBAAgB,EAAc,EAA0B,CACtD,KAAK,GAAG,aAAa,eAAgB,GACrC,WAAW,IAAM,KAAK,GAAG,aAAa,eAAgB,IAAK",
+ "mappings": "AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,GAWO,OAA0B,CAU/B,YAAoB,EAAuB,CAAvB,UArBtB,cAsBI,KAAK,KAAO,KAAG,QAAQ,SAAX,OAAwB,EAAG,UAGnC,CAAC,KAAK,MAAQ,MAAG,gBAAH,cAAkB,UAAU,SAAS,mBACrD,MAAK,KAAQ,QAAK,MAAQ,SAAG,gBAAH,cAAkB,cAAc,WAAhC,cAA0C,SAAvD,OAAiE,IAEhF,EAAG,iBAAiB,QAAS,GAAK,KAAK,gBAAgB,IAMzD,gBAAgB,EAAqB,CACnC,EAAE,iBACF,KAAM,GAA2B,IAGjC,GAAI,CAAC,UAAU,UAAW,CACxB,KAAK,gBAAgB,iBAAkB,GACvC,OAEF,UAAU,UACP,UAAU,KAAK,MACf,KAAK,IAAM,CACV,KAAK,gBAAgB,UAAW,KAEjC,MAAM,IAAM,CACX,KAAK,gBAAgB,iBAAkB,KAO7C,gBAAgB,EAAc,EAA0B,CACtD,KAAK,GAAG,aAAa,eAAgB,GACrC,WAAW,IAAM,KAAK,GAAG,aAAa,eAAgB,IAAK",
"names": []
}
diff --git a/static/shared/header/header.js b/static/shared/header/header.js
index 32def56..831b559 100644
--- a/static/shared/header/header.js
+++ b/static/shared/header/header.js
@@ -1,2 +1,7 @@
-function registerHeaderListeners(){const e=document.querySelector(".js-header"),n=document.querySelectorAll(".js-headerMenuButton");n.forEach(t=>{t.addEventListener("click",s=>{s.preventDefault(),e==null||e.classList.toggle("is-active"),t.setAttribute("aria-expanded",String(e==null?void 0:e.classList.contains("is-active")))})});const c=document.querySelector(".js-scrim");c==null||c.addEventListener("click",t=>{t.preventDefault(),e==null||e.classList.remove("is-active"),n.forEach(s=>{s.setAttribute("aria-expanded",String(e==null?void 0:e.classList.contains("is-active")))})})}function registerSearchFormListeners(){const e=document.querySelector(".js-searchForm"),n=document.querySelector(".js-expandSearch"),c=e==null?void 0:e.querySelector("input"),t=document.querySelector(".js-headerLogo"),s=document.querySelector(".js-headerMenuButton");n==null||n.addEventListener("click",()=>{e==null||e.classList.add("go-SearchForm--expanded"),t==null||t.classList.add("go-Header-logo--hidden"),s==null||s.classList.add("go-Header-navOpen--hidden"),c==null||c.focus()}),document==null||document.addEventListener("click",i=>{(e==null?void 0:e.contains(i.target))||(e==null||e.classList.remove("go-SearchForm--expanded"),t==null||t.classList.remove("go-Header-logo--hidden"),s==null||s.classList.remove("go-Header-navOpen--hidden"))})}registerHeaderListeners(),registerSearchFormListeners();
+/**
+ * @license
+ * Copyright 2021 The Go Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style
+ * license that can be found in the LICENSE file.
+ */function o(){const e=document.querySelector(".js-header"),n=document.querySelectorAll(".js-headerMenuButton");n.forEach(t=>{t.addEventListener("click",s=>{s.preventDefault(),e==null||e.classList.toggle("is-active"),t.setAttribute("aria-expanded",String(e==null?void 0:e.classList.contains("is-active")))})});const c=document.querySelector(".js-scrim");c==null||c.addEventListener("click",t=>{t.preventDefault(),e==null||e.classList.remove("is-active"),n.forEach(s=>{s.setAttribute("aria-expanded",String(e==null?void 0:e.classList.contains("is-active")))})})}function d(){const e=document.querySelector(".js-searchForm"),n=document.querySelector(".js-expandSearch"),c=e==null?void 0:e.querySelector("input"),t=document.querySelector(".js-headerLogo"),s=document.querySelector(".js-headerMenuButton");n==null||n.addEventListener("click",()=>{e==null||e.classList.add("go-SearchForm--expanded"),t==null||t.classList.add("go-Header-logo--hidden"),s==null||s.classList.add("go-Header-navOpen--hidden"),c==null||c.focus()}),document==null||document.addEventListener("click",i=>{(e==null?void 0:e.contains(i.target))||(e==null||e.classList.remove("go-SearchForm--expanded"),t==null||t.classList.remove("go-Header-logo--hidden"),s==null||s.classList.remove("go-Header-navOpen--hidden"))})}o(),d();
//# sourceMappingURL=header.js.map
diff --git a/static/shared/header/header.js.map b/static/shared/header/header.js.map
index e2684d2..dbb1e3a 100644
--- a/static/shared/header/header.js.map
+++ b/static/shared/header/header.js.map
@@ -1,7 +1,7 @@
{
"version": 3,
"sources": ["header.ts"],
- "sourcesContent": ["function registerHeaderListeners() {\n const header = document.querySelector('.js-header');\n const menuButtons = document.querySelectorAll('.js-headerMenuButton');\n menuButtons.forEach(button => {\n button.addEventListener('click', e => {\n e.preventDefault();\n header?.classList.toggle('is-active');\n button.setAttribute('aria-expanded', String(header?.classList.contains('is-active')));\n });\n });\n\n const scrim = document.querySelector('.js-scrim');\n scrim?.addEventListener('click', e => {\n e.preventDefault();\n header?.classList.remove('is-active');\n menuButtons.forEach(button => {\n button.setAttribute('aria-expanded', String(header?.classList.contains('is-active')));\n });\n });\n}\n\nfunction registerSearchFormListeners() {\n const searchForm = document.querySelector('.js-searchForm');\n const expandSearch = document.querySelector('.js-expandSearch');\n const input = searchForm?.querySelector('input');\n const headerLogo = document.querySelector('.js-headerLogo');\n const menuButton = document.querySelector('.js-headerMenuButton');\n expandSearch?.addEventListener('click', () => {\n searchForm?.classList.add('go-SearchForm--expanded');\n headerLogo?.classList.add('go-Header-logo--hidden');\n menuButton?.classList.add('go-Header-navOpen--hidden');\n input?.focus();\n });\n document?.addEventListener('click', e => {\n if (!searchForm?.contains(e.target as Node)) {\n searchForm?.classList.remove('go-SearchForm--expanded');\n headerLogo?.classList.remove('go-Header-logo--hidden');\n menuButton?.classList.remove('go-Header-navOpen--hidden');\n }\n });\n}\n\nregisterHeaderListeners();\nregisterSearchFormListeners();\n"],
- "mappings": "AAAA,kCAAmC,CACjC,KAAM,GAAS,SAAS,cAAc,cAChC,EAAc,SAAS,iBAAiB,wBAC9C,EAAY,QAAQ,GAAU,CAC5B,EAAO,iBAAiB,QAAS,GAAK,CACpC,EAAE,iBACF,WAAQ,UAAU,OAAO,aACzB,EAAO,aAAa,gBAAiB,OAAO,iBAAQ,UAAU,SAAS,mBAI3E,KAAM,GAAQ,SAAS,cAAc,aACrC,WAAO,iBAAiB,QAAS,GAAK,CACpC,EAAE,iBACF,WAAQ,UAAU,OAAO,aACzB,EAAY,QAAQ,GAAU,CAC5B,EAAO,aAAa,gBAAiB,OAAO,iBAAQ,UAAU,SAAS,mBAK7E,sCAAuC,CACrC,KAAM,GAAa,SAAS,cAAc,kBACpC,EAAe,SAAS,cAAc,oBACtC,EAAQ,iBAAY,cAAc,SAClC,EAAa,SAAS,cAAc,kBACpC,EAAa,SAAS,cAAc,wBAC1C,WAAc,iBAAiB,QAAS,IAAM,CAC5C,WAAY,UAAU,IAAI,2BAC1B,WAAY,UAAU,IAAI,0BAC1B,WAAY,UAAU,IAAI,6BAC1B,WAAO,UAET,yBAAU,iBAAiB,QAAS,GAAK,CACvC,AAAK,kBAAY,SAAS,EAAE,UAC1B,YAAY,UAAU,OAAO,2BAC7B,WAAY,UAAU,OAAO,0BAC7B,WAAY,UAAU,OAAO,gCAKnC,0BACA",
+ "sourcesContent": ["/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nfunction registerHeaderListeners() {\n const header = document.querySelector('.js-header');\n const menuButtons = document.querySelectorAll('.js-headerMenuButton');\n menuButtons.forEach(button => {\n button.addEventListener('click', e => {\n e.preventDefault();\n header?.classList.toggle('is-active');\n button.setAttribute('aria-expanded', String(header?.classList.contains('is-active')));\n });\n });\n\n const scrim = document.querySelector('.js-scrim');\n scrim?.addEventListener('click', e => {\n e.preventDefault();\n header?.classList.remove('is-active');\n menuButtons.forEach(button => {\n button.setAttribute('aria-expanded', String(header?.classList.contains('is-active')));\n });\n });\n}\n\nfunction registerSearchFormListeners() {\n const searchForm = document.querySelector('.js-searchForm');\n const expandSearch = document.querySelector('.js-expandSearch');\n const input = searchForm?.querySelector('input');\n const headerLogo = document.querySelector('.js-headerLogo');\n const menuButton = document.querySelector('.js-headerMenuButton');\n expandSearch?.addEventListener('click', () => {\n searchForm?.classList.add('go-SearchForm--expanded');\n headerLogo?.classList.add('go-Header-logo--hidden');\n menuButton?.classList.add('go-Header-navOpen--hidden');\n input?.focus();\n });\n document?.addEventListener('click', e => {\n if (!searchForm?.contains(e.target as Node)) {\n searchForm?.classList.remove('go-SearchForm--expanded');\n headerLogo?.classList.remove('go-Header-logo--hidden');\n menuButton?.classList.remove('go-Header-navOpen--hidden');\n }\n });\n}\n\nregisterHeaderListeners();\nregisterSearchFormListeners();\n\nexport {};\n"],
+ "mappings": "AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,GAOA,YAAmC,CACjC,KAAM,GAAS,SAAS,cAAc,cAChC,EAAc,SAAS,iBAAiB,wBAC9C,EAAY,QAAQ,GAAU,CAC5B,EAAO,iBAAiB,QAAS,GAAK,CACpC,EAAE,iBACF,WAAQ,UAAU,OAAO,aACzB,EAAO,aAAa,gBAAiB,OAAO,iBAAQ,UAAU,SAAS,mBAI3E,KAAM,GAAQ,SAAS,cAAc,aACrC,WAAO,iBAAiB,QAAS,GAAK,CACpC,EAAE,iBACF,WAAQ,UAAU,OAAO,aACzB,EAAY,QAAQ,GAAU,CAC5B,EAAO,aAAa,gBAAiB,OAAO,iBAAQ,UAAU,SAAS,mBAK7E,YAAuC,CACrC,KAAM,GAAa,SAAS,cAAc,kBACpC,EAAe,SAAS,cAAc,oBACtC,EAAQ,iBAAY,cAAc,SAClC,EAAa,SAAS,cAAc,kBACpC,EAAa,SAAS,cAAc,wBAC1C,WAAc,iBAAiB,QAAS,IAAM,CAC5C,WAAY,UAAU,IAAI,2BAC1B,WAAY,UAAU,IAAI,0BAC1B,WAAY,UAAU,IAAI,6BAC1B,WAAO,UAET,yBAAU,iBAAiB,QAAS,GAAK,CACvC,AAAK,kBAAY,SAAS,EAAE,UAC1B,YAAY,UAAU,OAAO,2BAC7B,WAAY,UAAU,OAAO,0BAC7B,WAAY,UAAU,OAAO,gCAKnC,IACA",
"names": []
}
diff --git a/static/shared/header/header.ts b/static/shared/header/header.ts
index d41face..c02261a 100644
--- a/static/shared/header/header.ts
+++ b/static/shared/header/header.ts
@@ -1,3 +1,10 @@
+/**
+ * @license
+ * Copyright 2021 The Go Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style
+ * license that can be found in the LICENSE file.
+ */
+
function registerHeaderListeners() {
const header = document.querySelector('.js-header');
const menuButtons = document.querySelectorAll('.js-headerMenuButton');
@@ -42,3 +49,5 @@
registerHeaderListeners();
registerSearchFormListeners();
+
+export {};
diff --git a/static/shared/jump/jump.js b/static/shared/jump/jump.js
index 0ba869e..9a09340 100644
--- a/static/shared/jump/jump.js
+++ b/static/shared/jump/jump.js
@@ -3,5 +3,5 @@
* Copyright 2019-2020 The Go Authors. All rights reserved.
* Use of this source code is governed by a BSD-style
* license that can be found in the LICENSE file.
- */const jumpDialog=document.querySelector(".JumpDialog"),jumpBody=jumpDialog==null?void 0:jumpDialog.querySelector(".JumpDialog-body"),jumpList=jumpDialog==null?void 0:jumpDialog.querySelector(".JumpDialog-list"),jumpFilter=jumpDialog==null?void 0:jumpDialog.querySelector(".JumpDialog-input"),doc=document.querySelector(".js-documentation");let jumpListItems;function collectJumpListItems(){const t=[];if(!!doc){for(const e of doc.querySelectorAll("[data-kind]"))t.push(newJumpListItem(e));for(const e of t)e.link.addEventListener("click",function(){jumpDialog==null||jumpDialog.close()});return t.sort(function(e,n){return e.lower.localeCompare(n.lower)}),t}}function newJumpListItem(t){var s;const e=document.createElement("a"),n=t.getAttribute("id");e.setAttribute("href","#"+n),e.setAttribute("tabindex","-1"),e.setAttribute("data-gtmc","jump to link");const c=t.getAttribute("data-kind");return{link:e,name:n!=null?n:"",kind:c!=null?c:"",lower:(s=n==null?void 0:n.toLowerCase())!=null?s:""}}let lastFilterValue,activeJumpItem=-1;function updateJumpList(t){for(lastFilterValue=t,jumpListItems||(jumpListItems=collectJumpListItems()),setActiveJumpItem(-1);jumpList==null?void 0:jumpList.firstChild;)jumpList.firstChild.remove();if(t){const e=t.toLowerCase(),n=[],c=[],s=[],l=(o,i,r)=>o.name.substring(0,i)+"<b>"+o.name.substring(i,r)+"</b>"+o.name.substring(r);for(const o of jumpListItems!=null?jumpListItems:[]){const i=o.name.toLowerCase();if(i===e)o.link.innerHTML=l(o,0,o.name.length),n.push(o);else if(i.startsWith(e))o.link.innerHTML=l(o,0,t.length),c.push(o);else{const r=i.indexOf(e);r>-1&&(o.link.innerHTML=l(o,r,r+t.length),s.push(o))}}for(const o of n.concat(c).concat(s))jumpList==null||jumpList.appendChild(o.link)}else{if(!jumpListItems||jumpListItems.length===0){const e=document.createElement("i");e.innerHTML="There are no symbols on this page.",jumpList==null||jumpList.appendChild(e)}for(const e of jumpListItems!=null?jumpListItems:[])e.link.innerHTML=e.name+" <i>"+e.kind+"</i>",jumpList==null||jumpList.appendChild(e.link)}jumpBody&&(jumpBody.scrollTop=0),(jumpListItems==null?void 0:jumpListItems.length)&&jumpList&&jumpList.children.length>0&&setActiveJumpItem(0)}function setActiveJumpItem(t){const e=jumpList==null?void 0:jumpList.children;if(!(!e||!jumpBody)){if(activeJumpItem>=0&&e[activeJumpItem].classList.remove("JumpDialog-active"),t>=e.length&&(t=e.length-1),t>=0){e[t].classList.add("JumpDialog-active");const n=e[t].offsetTop-e[0].offsetTop,c=n+e[t].clientHeight;n<jumpBody.scrollTop?jumpBody.scrollTop=n:c>jumpBody.scrollTop+jumpBody.clientHeight&&(jumpBody.scrollTop=c-jumpBody.clientHeight)}activeJumpItem=t}}function incActiveJumpItem(t){if(activeJumpItem<0)return;let e=activeJumpItem+t;e<0&&(e=0),setActiveJumpItem(e)}jumpFilter==null||jumpFilter.addEventListener("keyup",function(){jumpFilter.value.toUpperCase()!=lastFilterValue.toUpperCase()&&updateJumpList(jumpFilter.value)}),jumpFilter==null||jumpFilter.addEventListener("keydown",function(t){const e=38,n=40,c=13;switch(t.which){case e:incActiveJumpItem(-1),t.preventDefault();break;case n:incActiveJumpItem(1),t.preventDefault();break;case c:activeJumpItem>=0&&jumpList&&(jumpList.children[activeJumpItem].click(),t.preventDefault());break}});const shortcutsDialog=document.querySelector(".ShortcutsDialog");document.addEventListener("keypress",function(t){if((jumpDialog==null?void 0:jumpDialog.open)||(shortcutsDialog==null?void 0:shortcutsDialog.open))return;const e=t.target,n=e==null?void 0:e.tagName;if(n=="INPUT"||n=="SELECT"||n=="TEXTAREA"||(e==null?void 0:e.contentEditable)=="true"||t.metaKey||t.ctrlKey)return;switch(String.fromCharCode(t.which)){case"f":case"F":t.preventDefault(),jumpFilter&&(jumpFilter.value=""),jumpDialog==null||jumpDialog.showModal(),jumpFilter==null||jumpFilter.focus(),updateJumpList("");break;case"?":shortcutsDialog==null||shortcutsDialog.showModal();break}});const jumpOutlineInput=document.querySelector(".js-jumpToInput");jumpOutlineInput&&jumpOutlineInput.addEventListener("click",()=>{jumpFilter&&(jumpFilter.value=""),updateJumpList("")});
+ */const c=document.querySelector(".JumpDialog"),a=c==null?void 0:c.querySelector(".JumpDialog-body"),o=c==null?void 0:c.querySelector(".JumpDialog-list"),r=c==null?void 0:c.querySelector(".JumpDialog-input"),L=document.querySelector(".js-documentation");let s;function w(){const t=[];if(!!L){for(const e of L.querySelectorAll("[data-kind]"))t.push(M(e));for(const e of t)e.link.addEventListener("click",function(){c==null||c.close()});return t.sort(function(e,n){return e.lower.localeCompare(n.lower)}),t}}function M(t){var m;const e=document.createElement("a"),n=t.getAttribute("id");e.setAttribute("href","#"+n),e.setAttribute("tabindex","-1"),e.setAttribute("data-gtmc","jump to link");const l=t.getAttribute("data-kind");return{link:e,name:n!=null?n:"",kind:l!=null?l:"",lower:(m=n==null?void 0:n.toLowerCase())!=null?m:""}}let v,f=-1;function T(t){for(v=t,s||(s=w()),k(-1);o==null?void 0:o.firstChild;)o.firstChild.remove();if(t){const e=t.toLowerCase(),n=[],l=[],m=[],p=(i,u,d)=>i.name.substring(0,u)+"<b>"+i.name.substring(u,d)+"</b>"+i.name.substring(d);for(const i of s!=null?s:[]){const u=i.name.toLowerCase();if(u===e)i.link.innerHTML=p(i,0,i.name.length),n.push(i);else if(u.startsWith(e))i.link.innerHTML=p(i,0,t.length),l.push(i);else{const d=u.indexOf(e);d>-1&&(i.link.innerHTML=p(i,d,d+t.length),m.push(i))}}for(const i of n.concat(l).concat(m))o==null||o.appendChild(i.link)}else{if(!s||s.length===0){const e=document.createElement("i");e.innerHTML="There are no symbols on this page.",o==null||o.appendChild(e)}for(const e of s!=null?s:[])e.link.innerHTML=e.name+" <i>"+e.kind+"</i>",o==null||o.appendChild(e.link)}a&&(a.scrollTop=0),(s==null?void 0:s.length)&&o&&o.children.length>0&&k(0)}function k(t){const e=o==null?void 0:o.children;if(!(!e||!a)){if(f>=0&&e[f].classList.remove("JumpDialog-active"),t>=e.length&&(t=e.length-1),t>=0){e[t].classList.add("JumpDialog-active");const n=e[t].offsetTop-e[0].offsetTop,l=n+e[t].clientHeight;n<a.scrollTop?a.scrollTop=n:l>a.scrollTop+a.clientHeight&&(a.scrollTop=l-a.clientHeight)}f=t}}function E(t){if(f<0)return;let e=f+t;e<0&&(e=0),k(e)}r==null||r.addEventListener("keyup",function(){r.value.toUpperCase()!=v.toUpperCase()&&T(r.value)}),r==null||r.addEventListener("keydown",function(t){const e=38,n=40,l=13;switch(t.which){case e:E(-1),t.preventDefault();break;case n:E(1),t.preventDefault();break;case l:f>=0&&o&&(o.children[f].click(),t.preventDefault());break}});const h=document.querySelector(".ShortcutsDialog");document.addEventListener("keypress",function(t){if((c==null?void 0:c.open)||(h==null?void 0:h.open))return;const e=t.target,n=e==null?void 0:e.tagName;if(n=="INPUT"||n=="SELECT"||n=="TEXTAREA"||(e==null?void 0:e.contentEditable)=="true"||t.metaKey||t.ctrlKey)return;switch(String.fromCharCode(t.which)){case"f":case"F":t.preventDefault(),r&&(r.value=""),c==null||c.showModal(),r==null||r.focus(),T("");break;case"?":h==null||h.showModal();break}});const b=document.querySelector(".js-jumpToInput");b&&b.addEventListener("click",()=>{r&&(r.value=""),T("")});
//# sourceMappingURL=jump.js.map
diff --git a/static/shared/jump/jump.js.map b/static/shared/jump/jump.js.map
index bb09039..4ff645d 100644
--- a/static/shared/jump/jump.js.map
+++ b/static/shared/jump/jump.js.map
@@ -1,7 +1,7 @@
{
"version": 3,
"sources": ["jump.ts"],
- "sourcesContent": ["/*!\n * @license\n * Copyright 2019-2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n// This file implements the behavior of the \"jump to symbol\" dialog for Go\n// package documentation, as well as the simple dialog that displays keyboard\n// shortcuts.\n\n// The DOM for the dialogs is at the bottom of static/frontend/unit/main/_modals.tmpl.\n// The CSS is in static/frontend/unit/main/_modals.css.\n\n// The dialog is activated by pressing the 'f' key. It presents a list\n// (#JumpDialog-list) of all Go symbols displayed in the documentation.\n// Entering text in the dialog's text box (#JumpDialog-filter) restricts the\n// list to symbols containing the text. Clicking on an symbol jumps to\n// its documentation.\n\n// This code is based on\n// https://go.googlesource.com/gddo/+/refs/heads/master/gddo-server/assets/site.js.\n// It was modified to remove the dependence on jquery and bootstrap.\n\nconst jumpDialog = document.querySelector<HTMLDialogElement>('.JumpDialog');\nconst jumpBody = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-body');\nconst jumpList = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-list');\nconst jumpFilter = jumpDialog?.querySelector<HTMLInputElement>('.JumpDialog-input');\nconst doc = document.querySelector<HTMLDivElement>('.js-documentation');\n\ninterface JumpListItem {\n link: HTMLAnchorElement;\n name: string;\n kind: string;\n lower: string;\n}\n\nlet jumpListItems: JumpListItem[] | undefined; // All the symbols in the doc; computed only once.\n\n// collectJumpListItems returns a list of items, one for each symbol in the\n// documentation on the current page.\n//\n// It uses the data-kind attribute generated in the documentation HTML to find\n// the symbols and their id attributes.\n//\n// If there are no data-kind attributes, then we have older doc; fall back to\n// a less precise method.\nfunction collectJumpListItems() {\n const items = [];\n if (!doc) return;\n for (const el of doc.querySelectorAll('[data-kind]')) {\n items.push(newJumpListItem(el));\n }\n\n // Clicking on any of the links closes the dialog.\n for (const item of items) {\n item.link.addEventListener('click', function () {\n jumpDialog?.close();\n });\n }\n // Sort case-insensitively by symbol name.\n items.sort(function (a, b) {\n return a.lower.localeCompare(b.lower);\n });\n return items;\n}\n\n// newJumpListItem creates a new item for the DOM element el.\n// An item is an object with:\n// - name: the element's id (which is the symbol name)\n// - kind: the element's kind (function, variable, etc.),\n// - link: a link ('a' tag) to the element\n// - lower: the name in lower case, just for sorting\nfunction newJumpListItem(el: Element): JumpListItem {\n const a = document.createElement('a');\n const name = el.getAttribute('id');\n a.setAttribute('href', '#' + name);\n a.setAttribute('tabindex', '-1');\n a.setAttribute('data-gtmc', 'jump to link');\n const kind = el.getAttribute('data-kind');\n return {\n link: a,\n name: name ?? '',\n kind: kind ?? '',\n lower: name?.toLowerCase() ?? '', // for sorting\n };\n}\n\nlet lastFilterValue: string; // The last contents of the filter text box.\nlet activeJumpItem = -1; // The index of the currently active item in the list.\n\n// updateJumpList sets the elements of the dialog list to\n// everything whose name contains filter.\nfunction updateJumpList(filter: string) {\n lastFilterValue = filter;\n if (!jumpListItems) {\n jumpListItems = collectJumpListItems();\n }\n setActiveJumpItem(-1);\n\n // Remove all children from list.\n while (jumpList?.firstChild) {\n jumpList.firstChild.remove();\n }\n\n if (filter) {\n // A filter is set. We treat the filter as a substring that can appear in\n // an item name (case insensitive), and find the following matches - in\n // order of priority:\n //\n // 1. Exact matches (the filter matches the item's name exactly)\n // 2. Prefix matches (the item's name starts with filter)\n // 3. Infix matches (the filter is a substring of the item's name)\n const filterLowerCase = filter.toLowerCase();\n\n const exactMatches = [];\n const prefixMatches = [];\n const infixMatches = [];\n\n // makeLinkHtml creates the link name HTML for a list item. item is the DOM\n // item. item.name.substr(boldStart, boldEnd) will be bolded.\n const makeLinkHtml = (item: JumpListItem, boldStart: number, boldEnd: number) => {\n return (\n item.name.substring(0, boldStart) +\n '<b>' +\n item.name.substring(boldStart, boldEnd) +\n '</b>' +\n item.name.substring(boldEnd)\n );\n };\n\n for (const item of jumpListItems ?? []) {\n const nameLowerCase = item.name.toLowerCase();\n\n if (nameLowerCase === filterLowerCase) {\n item.link.innerHTML = makeLinkHtml(item, 0, item.name.length);\n exactMatches.push(item);\n } else if (nameLowerCase.startsWith(filterLowerCase)) {\n item.link.innerHTML = makeLinkHtml(item, 0, filter.length);\n prefixMatches.push(item);\n } else {\n const index = nameLowerCase.indexOf(filterLowerCase);\n if (index > -1) {\n item.link.innerHTML = makeLinkHtml(item, index, index + filter.length);\n infixMatches.push(item);\n }\n }\n }\n\n for (const item of exactMatches.concat(prefixMatches).concat(infixMatches)) {\n jumpList?.appendChild(item.link);\n }\n } else {\n if (!jumpListItems || jumpListItems.length === 0) {\n const msg = document.createElement('i');\n msg.innerHTML = 'There are no symbols on this page.';\n jumpList?.appendChild(msg);\n }\n // No filter set; display all items in their existing order.\n for (const item of jumpListItems ?? []) {\n item.link.innerHTML = item.name + ' <i>' + item.kind + '</i>';\n jumpList?.appendChild(item.link);\n }\n }\n\n if (jumpBody) {\n jumpBody.scrollTop = 0;\n }\n if (jumpListItems?.length && jumpList && jumpList.children.length > 0) {\n setActiveJumpItem(0);\n }\n}\n\n// Set the active jump item to n.\nfunction setActiveJumpItem(n: number) {\n const cs = jumpList?.children as HTMLCollectionOf<HTMLElement> | null | undefined;\n if (!cs || !jumpBody) {\n return;\n }\n if (activeJumpItem >= 0) {\n cs[activeJumpItem].classList.remove('JumpDialog-active');\n }\n if (n >= cs.length) {\n n = cs.length - 1;\n }\n if (n >= 0) {\n cs[n].classList.add('JumpDialog-active');\n\n // Scroll so the active item is visible.\n // For some reason cs[n].scrollIntoView() doesn't behave as I'd expect:\n // it moves the entire dialog box in the viewport.\n\n // Get the top and bottom of the active item relative to jumpBody.\n const activeTop = cs[n].offsetTop - cs[0].offsetTop;\n const activeBottom = activeTop + cs[n].clientHeight;\n if (activeTop < jumpBody.scrollTop) {\n // Off the top; scroll up.\n jumpBody.scrollTop = activeTop;\n } else if (activeBottom > jumpBody.scrollTop + jumpBody.clientHeight) {\n // Off the bottom; scroll down.\n jumpBody.scrollTop = activeBottom - jumpBody.clientHeight;\n }\n }\n activeJumpItem = n;\n}\n\n// Increment the activeJumpItem by delta.\nfunction incActiveJumpItem(delta: number) {\n if (activeJumpItem < 0) {\n return;\n }\n let n = activeJumpItem + delta;\n if (n < 0) {\n n = 0;\n }\n setActiveJumpItem(n);\n}\n\n// Pressing a key in the filter updates the list (if the filter actually changed).\njumpFilter?.addEventListener('keyup', function () {\n if (jumpFilter.value.toUpperCase() != lastFilterValue.toUpperCase()) {\n updateJumpList(jumpFilter.value);\n }\n});\n\n// Pressing enter in the filter selects the first element in the list.\njumpFilter?.addEventListener('keydown', function (event) {\n const upArrow = 38;\n const downArrow = 40;\n const enterKey = 13;\n switch (event.which) {\n case upArrow:\n incActiveJumpItem(-1);\n event.preventDefault();\n break;\n case downArrow:\n incActiveJumpItem(1);\n event.preventDefault();\n break;\n case enterKey:\n if (activeJumpItem >= 0) {\n if (jumpList) {\n (jumpList.children[activeJumpItem] as HTMLElement).click();\n event.preventDefault();\n }\n }\n break;\n }\n});\n\nconst shortcutsDialog = document.querySelector<HTMLDialogElement>('.ShortcutsDialog');\n\n// Keyboard shortcuts:\n// - Pressing '/' focuses the search box\n// - Pressing 'f' or 'F' opens the jump-to-symbol dialog.\n// - Pressing '?' opens up the shortcut dialog.\n// Ignore a keypress if a dialog is already open, or if it is pressed on a\n// component that wants to consume it.\ndocument.addEventListener('keypress', function (e) {\n if (jumpDialog?.open || shortcutsDialog?.open) {\n return;\n }\n const target = e.target as HTMLElement | null;\n const t = target?.tagName;\n if (t == 'INPUT' || t == 'SELECT' || t == 'TEXTAREA') {\n return;\n }\n if (target?.contentEditable == 'true') {\n return;\n }\n if (e.metaKey || e.ctrlKey) {\n return;\n }\n const ch = String.fromCharCode(e.which);\n switch (ch) {\n case 'f':\n case 'F':\n e.preventDefault();\n if (jumpFilter) {\n jumpFilter.value = '';\n }\n jumpDialog?.showModal();\n jumpFilter?.focus();\n updateJumpList('');\n break;\n case '?':\n shortcutsDialog?.showModal();\n break;\n }\n});\n\nconst jumpOutlineInput = document.querySelector('.js-jumpToInput');\nif (jumpOutlineInput) {\n jumpOutlineInput.addEventListener('click', () => {\n if (jumpFilter) {\n jumpFilter.value = '';\n }\n updateJumpList('');\n });\n}\n"],
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+ "sourcesContent": ["/*!\n * @license\n * Copyright 2019-2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n// This file implements the behavior of the \"jump to symbol\" dialog for Go\n// package documentation, as well as the simple dialog that displays keyboard\n// shortcuts.\n\n// The DOM for the dialogs is at the bottom of static/frontend/unit/main/_modals.tmpl.\n// The CSS is in static/frontend/unit/main/_modals.css.\n\n// The dialog is activated by pressing the 'f' key. It presents a list\n// (#JumpDialog-list) of all Go symbols displayed in the documentation.\n// Entering text in the dialog's text box (#JumpDialog-filter) restricts the\n// list to symbols containing the text. Clicking on an symbol jumps to\n// its documentation.\n\n// This code is based on\n// https://go.googlesource.com/gddo/+/refs/heads/master/gddo-server/assets/site.js.\n// It was modified to remove the dependence on jquery and bootstrap.\n\nconst jumpDialog = document.querySelector<HTMLDialogElement>('.JumpDialog');\nconst jumpBody = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-body');\nconst jumpList = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-list');\nconst jumpFilter = jumpDialog?.querySelector<HTMLInputElement>('.JumpDialog-input');\nconst doc = document.querySelector<HTMLDivElement>('.js-documentation');\n\ninterface JumpListItem {\n link: HTMLAnchorElement;\n name: string;\n kind: string;\n lower: string;\n}\n\nlet jumpListItems: JumpListItem[] | undefined; // All the symbols in the doc; computed only once.\n\n// collectJumpListItems returns a list of items, one for each symbol in the\n// documentation on the current page.\n//\n// It uses the data-kind attribute generated in the documentation HTML to find\n// the symbols and their id attributes.\n//\n// If there are no data-kind attributes, then we have older doc; fall back to\n// a less precise method.\nfunction collectJumpListItems() {\n const items = [];\n if (!doc) return;\n for (const el of doc.querySelectorAll('[data-kind]')) {\n items.push(newJumpListItem(el));\n }\n\n // Clicking on any of the links closes the dialog.\n for (const item of items) {\n item.link.addEventListener('click', function () {\n jumpDialog?.close();\n });\n }\n // Sort case-insensitively by symbol name.\n items.sort(function (a, b) {\n return a.lower.localeCompare(b.lower);\n });\n return items;\n}\n\n// newJumpListItem creates a new item for the DOM element el.\n// An item is an object with:\n// - name: the element's id (which is the symbol name)\n// - kind: the element's kind (function, variable, etc.),\n// - link: a link ('a' tag) to the element\n// - lower: the name in lower case, just for sorting\nfunction newJumpListItem(el: Element): JumpListItem {\n const a = document.createElement('a');\n const name = el.getAttribute('id');\n a.setAttribute('href', '#' + name);\n a.setAttribute('tabindex', '-1');\n a.setAttribute('data-gtmc', 'jump to link');\n const kind = el.getAttribute('data-kind');\n return {\n link: a,\n name: name ?? '',\n kind: kind ?? '',\n lower: name?.toLowerCase() ?? '', // for sorting\n };\n}\n\nlet lastFilterValue: string; // The last contents of the filter text box.\nlet activeJumpItem = -1; // The index of the currently active item in the list.\n\n// updateJumpList sets the elements of the dialog list to\n// everything whose name contains filter.\nfunction updateJumpList(filter: string) {\n lastFilterValue = filter;\n if (!jumpListItems) {\n jumpListItems = collectJumpListItems();\n }\n setActiveJumpItem(-1);\n\n // Remove all children from list.\n while (jumpList?.firstChild) {\n jumpList.firstChild.remove();\n }\n\n if (filter) {\n // A filter is set. We treat the filter as a substring that can appear in\n // an item name (case insensitive), and find the following matches - in\n // order of priority:\n //\n // 1. Exact matches (the filter matches the item's name exactly)\n // 2. Prefix matches (the item's name starts with filter)\n // 3. Infix matches (the filter is a substring of the item's name)\n const filterLowerCase = filter.toLowerCase();\n\n const exactMatches = [];\n const prefixMatches = [];\n const infixMatches = [];\n\n // makeLinkHtml creates the link name HTML for a list item. item is the DOM\n // item. item.name.substr(boldStart, boldEnd) will be bolded.\n const makeLinkHtml = (item: JumpListItem, boldStart: number, boldEnd: number) => {\n return (\n item.name.substring(0, boldStart) +\n '<b>' +\n item.name.substring(boldStart, boldEnd) +\n '</b>' +\n item.name.substring(boldEnd)\n );\n };\n\n for (const item of jumpListItems ?? []) {\n const nameLowerCase = item.name.toLowerCase();\n\n if (nameLowerCase === filterLowerCase) {\n item.link.innerHTML = makeLinkHtml(item, 0, item.name.length);\n exactMatches.push(item);\n } else if (nameLowerCase.startsWith(filterLowerCase)) {\n item.link.innerHTML = makeLinkHtml(item, 0, filter.length);\n prefixMatches.push(item);\n } else {\n const index = nameLowerCase.indexOf(filterLowerCase);\n if (index > -1) {\n item.link.innerHTML = makeLinkHtml(item, index, index + filter.length);\n infixMatches.push(item);\n }\n }\n }\n\n for (const item of exactMatches.concat(prefixMatches).concat(infixMatches)) {\n jumpList?.appendChild(item.link);\n }\n } else {\n if (!jumpListItems || jumpListItems.length === 0) {\n const msg = document.createElement('i');\n msg.innerHTML = 'There are no symbols on this page.';\n jumpList?.appendChild(msg);\n }\n // No filter set; display all items in their existing order.\n for (const item of jumpListItems ?? []) {\n item.link.innerHTML = item.name + ' <i>' + item.kind + '</i>';\n jumpList?.appendChild(item.link);\n }\n }\n\n if (jumpBody) {\n jumpBody.scrollTop = 0;\n }\n if (jumpListItems?.length && jumpList && jumpList.children.length > 0) {\n setActiveJumpItem(0);\n }\n}\n\n// Set the active jump item to n.\nfunction setActiveJumpItem(n: number) {\n const cs = jumpList?.children as HTMLCollectionOf<HTMLElement> | null | undefined;\n if (!cs || !jumpBody) {\n return;\n }\n if (activeJumpItem >= 0) {\n cs[activeJumpItem].classList.remove('JumpDialog-active');\n }\n if (n >= cs.length) {\n n = cs.length - 1;\n }\n if (n >= 0) {\n cs[n].classList.add('JumpDialog-active');\n\n // Scroll so the active item is visible.\n // For some reason cs[n].scrollIntoView() doesn't behave as I'd expect:\n // it moves the entire dialog box in the viewport.\n\n // Get the top and bottom of the active item relative to jumpBody.\n const activeTop = cs[n].offsetTop - cs[0].offsetTop;\n const activeBottom = activeTop + cs[n].clientHeight;\n if (activeTop < jumpBody.scrollTop) {\n // Off the top; scroll up.\n jumpBody.scrollTop = activeTop;\n } else if (activeBottom > jumpBody.scrollTop + jumpBody.clientHeight) {\n // Off the bottom; scroll down.\n jumpBody.scrollTop = activeBottom - jumpBody.clientHeight;\n }\n }\n activeJumpItem = n;\n}\n\n// Increment the activeJumpItem by delta.\nfunction incActiveJumpItem(delta: number) {\n if (activeJumpItem < 0) {\n return;\n }\n let n = activeJumpItem + delta;\n if (n < 0) {\n n = 0;\n }\n setActiveJumpItem(n);\n}\n\n// Pressing a key in the filter updates the list (if the filter actually changed).\njumpFilter?.addEventListener('keyup', function () {\n if (jumpFilter.value.toUpperCase() != lastFilterValue.toUpperCase()) {\n updateJumpList(jumpFilter.value);\n }\n});\n\n// Pressing enter in the filter selects the first element in the list.\njumpFilter?.addEventListener('keydown', function (event) {\n const upArrow = 38;\n const downArrow = 40;\n const enterKey = 13;\n switch (event.which) {\n case upArrow:\n incActiveJumpItem(-1);\n event.preventDefault();\n break;\n case downArrow:\n incActiveJumpItem(1);\n event.preventDefault();\n break;\n case enterKey:\n if (activeJumpItem >= 0) {\n if (jumpList) {\n (jumpList.children[activeJumpItem] as HTMLElement).click();\n event.preventDefault();\n }\n }\n break;\n }\n});\n\nconst shortcutsDialog = document.querySelector<HTMLDialogElement>('.ShortcutsDialog');\n\n// Keyboard shortcuts:\n// - Pressing '/' focuses the search box\n// - Pressing 'f' or 'F' opens the jump-to-symbol dialog.\n// - Pressing '?' opens up the shortcut dialog.\n// Ignore a keypress if a dialog is already open, or if it is pressed on a\n// component that wants to consume it.\ndocument.addEventListener('keypress', function (e) {\n if (jumpDialog?.open || shortcutsDialog?.open) {\n return;\n }\n const target = e.target as HTMLElement | null;\n const t = target?.tagName;\n if (t == 'INPUT' || t == 'SELECT' || t == 'TEXTAREA') {\n return;\n }\n if (target?.contentEditable == 'true') {\n return;\n }\n if (e.metaKey || e.ctrlKey) {\n return;\n }\n const ch = String.fromCharCode(e.which);\n switch (ch) {\n case 'f':\n case 'F':\n e.preventDefault();\n if (jumpFilter) {\n jumpFilter.value = '';\n }\n jumpDialog?.showModal();\n jumpFilter?.focus();\n updateJumpList('');\n break;\n case '?':\n shortcutsDialog?.showModal();\n break;\n }\n});\n\nconst jumpOutlineInput = document.querySelector('.js-jumpToInput');\nif (jumpOutlineInput) {\n jumpOutlineInput.addEventListener('click', () => {\n if (jumpFilter) {\n jumpFilter.value = '';\n }\n updateJumpList('');\n });\n}\n\nexport {};\n"],
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"names": []
}
diff --git a/static/shared/jump/jump.ts b/static/shared/jump/jump.ts
index 342e5c4..03db6ee 100644
--- a/static/shared/jump/jump.ts
+++ b/static/shared/jump/jump.ts
@@ -298,3 +298,5 @@
updateJumpList('');
});
}
+
+export {};
diff --git a/static/shared/keyboard/keyboard.js b/static/shared/keyboard/keyboard.js
index ae436bc..aa3d8d6 100644
--- a/static/shared/keyboard/keyboard.js
+++ b/static/shared/keyboard/keyboard.js
@@ -3,5 +3,5 @@
* Copyright 2019-2020 The Go Authors. All rights reserved.
* Use of this source code is governed by a BSD-style
* license that can be found in the LICENSE file.
- */import{track as i}from"../analytics/analytics";class o{constructor(){this.handlers={},document.addEventListener("keydown",e=>this.handleKeyPress(e))}on(e,a,r,t){var n,s;return(s=(n=this.handlers)[e])!=null||(n[e]=new Set),this.handlers[e].add({description:a,callback:r,...t}),this}handleKeyPress(e){var a;for(const r of(a=this.handlers[e.key.toLowerCase()])!=null?a:new Set){if(r.target&&r.target!==e.target)return;const t=e.target;if(!r.target&&((t==null?void 0:t.tagName)==="INPUT"||(t==null?void 0:t.tagName)==="SELECT"||(t==null?void 0:t.tagName)==="TEXTAREA")||(t==null?void 0:t.isContentEditable)||r.withMeta&&!(e.ctrlKey||e.metaKey)||!r.withMeta&&(e.ctrlKey||e.metaKey))return;i("keypress","hotkeys",`${e.key} pressed`,r.description),r.callback(e)}}}export const keyboard=new o;
+ */import{track as i}from"../analytics/analytics";class o{constructor(){this.handlers={},document.addEventListener("keydown",e=>this.handleKeyPress(e))}on(e,a,r,t){var n,s;return(s=(n=this.handlers)[e])!=null||(n[e]=new Set),this.handlers[e].add({description:a,callback:r,...t}),this}handleKeyPress(e){var a;for(const r of(a=this.handlers[e.key.toLowerCase()])!=null?a:new Set){if(r.target&&r.target!==e.target)return;const t=e.target;if(!r.target&&((t==null?void 0:t.tagName)==="INPUT"||(t==null?void 0:t.tagName)==="SELECT"||(t==null?void 0:t.tagName)==="TEXTAREA")||(t==null?void 0:t.isContentEditable)||r.withMeta&&!(e.ctrlKey||e.metaKey)||!r.withMeta&&(e.ctrlKey||e.metaKey))return;i("keypress","hotkeys",`${e.key} pressed`,r.description),r.callback(e)}}}const c=new o;export{c as keyboard};
//# sourceMappingURL=keyboard.js.map
diff --git a/static/shared/keyboard/keyboard.js.map b/static/shared/keyboard/keyboard.js.map
index 3f256b5..8234b52 100644
--- a/static/shared/keyboard/keyboard.js.map
+++ b/static/shared/keyboard/keyboard.js.map
@@ -2,6 +2,6 @@
"version": 3,
"sources": ["keyboard.ts"],
"sourcesContent": ["/*!\n * @license\n * Copyright 2019-2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { track } from '../analytics/analytics';\n\n/**\n * Options are keyhandler callback options.\n */\ninterface Options {\n /**\n * target is the element the key event should filter on. The\n * default target is the document.\n */\n target?: Element;\n\n /**\n * withMeta specifies if the event callback should fire when\n * the key is pressed with a meta key (ctrl, alt, etc). By\n * default meta keypresses are ignored.\n */\n withMeta?: boolean;\n}\n\n/**\n * KeyHandler is the config for a keyboard event callback.\n */\ninterface KeyHandler extends Options {\n description: string;\n callback: (e: KeyboardEvent) => void;\n}\n\n/**\n * KeyboardController controls event callbacks for sitewide\n * keyboard events. Multiple callbacks can be registered for\n * a single key and by default the controller ignores events\n * for text input targets.\n */\nclass KeyboardController {\n handlers: Record<string, Set<KeyHandler>>;\n\n constructor() {\n this.handlers = {};\n document.addEventListener('keydown', e => this.handleKeyPress(e));\n }\n\n /**\n * on registers keyboard event callbacks.\n * @param key the key to register.\n * @param description name of the event.\n * @param callback event callback.\n * @param options set target and withMeta options to override the default behaviors.\n */\n on(key: string, description: string, callback: (e: KeyboardEvent) => void, options?: Options) {\n this.handlers[key] ??= new Set();\n this.handlers[key].add({ description, callback, ...options });\n return this;\n }\n\n private handleKeyPress(e: KeyboardEvent) {\n for (const handler of this.handlers[e.key.toLowerCase()] ?? new Set()) {\n if (handler.target && handler.target !== e.target) {\n return;\n }\n const t = e.target as HTMLElement | null;\n if (\n !handler.target &&\n (t?.tagName === 'INPUT' || t?.tagName === 'SELECT' || t?.tagName === 'TEXTAREA')\n ) {\n return;\n }\n if (t?.isContentEditable) {\n return;\n }\n if (\n (handler.withMeta && !(e.ctrlKey || e.metaKey)) ||\n (!handler.withMeta && (e.ctrlKey || e.metaKey))\n ) {\n return;\n }\n track('keypress', 'hotkeys', `${e.key} pressed`, handler.description);\n handler.callback(e);\n }\n }\n}\n\nexport const keyboard = new KeyboardController();\n"],
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"names": []
}
diff --git a/static/shared/modal/modal.js b/static/shared/modal/modal.js
index 8bf31ad..fca8442 100644
--- a/static/shared/modal/modal.js
+++ b/static/shared/modal/modal.js
@@ -3,5 +3,5 @@
* Copyright 2021 The Go Authors. All rights reserved.
* Use of this source code is governed by a BSD-style
* license that can be found in the LICENSE file.
- */export class ModalController{constructor(l){this.el=l;!window.HTMLDialogElement&&!l.showModal&&import("../../../third_party/dialog-polyfill/dialog-polyfill.esm.js").then(({default:e})=>{e.registerDialog(l)});const t=l.id,o=document.querySelector(`[aria-controls="${t}"]`);o&&o.addEventListener("click",()=>{var e;this.el.showModal?this.el.showModal():this.el.open=!0,(e=l.querySelector("input"))==null||e.focus()});for(const e of this.el.querySelectorAll("[data-modal-close]"))e.addEventListener("click",()=>{this.el.close?this.el.close():this.el.open=!1})}}
+ */class s{constructor(l){this.el=l;!window.HTMLDialogElement&&!l.showModal&&import("../../../third_party/dialog-polyfill/dialog-polyfill.esm.js").then(({default:e})=>{e.registerDialog(l)});const t=l.id,o=document.querySelector(`[aria-controls="${t}"]`);o&&o.addEventListener("click",()=>{var e;this.el.showModal?this.el.showModal():this.el.open=!0,(e=l.querySelector("input"))==null||e.focus()});for(const e of this.el.querySelectorAll("[data-modal-close]"))e.addEventListener("click",()=>{this.el.close?this.el.close():this.el.open=!1})}}export{s as ModalController};
//# sourceMappingURL=modal.js.map
diff --git a/static/shared/modal/modal.js.map b/static/shared/modal/modal.js.map
index 631ebb9..1c2d705 100644
--- a/static/shared/modal/modal.js.map
+++ b/static/shared/modal/modal.js.map
@@ -2,6 +2,6 @@
"version": 3,
"sources": ["modal.ts"],
"sourcesContent": ["/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * ModalController registers a dialog element with the polyfill if\n * necessary for the current browser, add adds event listeners to\n * close and open modals.\n */\nexport class ModalController {\n constructor(private el: HTMLDialogElement) {\n // Only load the dialog polyfill if necessary for the environment.\n if (!window.HTMLDialogElement && !el.showModal) {\n import('../../../third_party/dialog-polyfill/dialog-polyfill.esm.js').then(\n ({ default: polyfill }) => {\n polyfill.registerDialog(el);\n }\n );\n }\n const id = el.id;\n const button = document.querySelector<HTMLButtonElement>(`[aria-controls=\"${id}\"]`);\n if (button) {\n button.addEventListener('click', () => {\n if (this.el.showModal) {\n this.el.showModal();\n } else {\n this.el.open = true;\n }\n el.querySelector('input')?.focus();\n });\n }\n for (const close of this.el.querySelectorAll<HTMLButtonElement>('[data-modal-close]')) {\n close.addEventListener('click', () => {\n if (this.el.close) {\n this.el.close();\n } else {\n this.el.open = false;\n }\n });\n }\n }\n}\n"],
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"names": []
}
diff --git a/static/shared/outline/select.js b/static/shared/outline/select.js
index df21f0b..aa019e1 100644
--- a/static/shared/outline/select.js
+++ b/static/shared/outline/select.js
@@ -3,5 +3,5 @@
* Copyright 2021 The Go Authors. All rights reserved.
* Use of this source code is governed by a BSD-style
* license that can be found in the LICENSE file.
- */export class SelectNavController{constructor(n){this.el=n;this.el.addEventListener("change",t=>{const o=t.target;let a=o.value;o.value.startsWith("/")||(a="/"+a),window.location.href=a})}}export function makeSelectNav(c){const n=document.createElement("label");n.classList.add("go-Label"),n.setAttribute("aria-label","Menu");const t=document.createElement("select");t.classList.add("go-Select","js-selectNav"),n.appendChild(t);const o=document.createElement("optgroup");o.label="Outline",t.appendChild(o);const a={};let l;for(const e of c.treeitems){if(Number(e.depth)>4)continue;e.groupTreeitem?(l=a[e.groupTreeitem.label],l||(l=a[e.groupTreeitem.label]=document.createElement("optgroup"),l.label=e.groupTreeitem.label,t.appendChild(l))):l=o;const r=document.createElement("option");r.label=e.label,r.textContent=e.label,r.value=e.el.href.replace(window.location.origin,"").replace("/",""),l.appendChild(r)}return c.addObserver(e=>{var i;const r=e.el.hash,s=(i=t.querySelector(`[value$="${r}"]`))==null?void 0:i.value;s&&(t.value=s)},50),n}
+ */class m{constructor(n){this.el=n;this.el.addEventListener("change",t=>{const o=t.target;let a=o.value;o.value.startsWith("/")||(a="/"+a),window.location.href=a})}}function d(c){const n=document.createElement("label");n.classList.add("go-Label"),n.setAttribute("aria-label","Menu");const t=document.createElement("select");t.classList.add("go-Select","js-selectNav"),n.appendChild(t);const o=document.createElement("optgroup");o.label="Outline",t.appendChild(o);const a={};let l;for(const e of c.treeitems){if(Number(e.depth)>4)continue;e.groupTreeitem?(l=a[e.groupTreeitem.label],l||(l=a[e.groupTreeitem.label]=document.createElement("optgroup"),l.label=e.groupTreeitem.label,t.appendChild(l))):l=o;const r=document.createElement("option");r.label=e.label,r.textContent=e.label,r.value=e.el.href.replace(window.location.origin,"").replace("/",""),l.appendChild(r)}return c.addObserver(e=>{var i;const r=e.el.hash,s=(i=t.querySelector(`[value$="${r}"]`))==null?void 0:i.value;s&&(t.value=s)},50),n}export{m as SelectNavController,d as makeSelectNav};
//# sourceMappingURL=select.js.map
diff --git a/static/shared/outline/select.js.map b/static/shared/outline/select.js.map
index b65f06a..b94877e 100644
--- a/static/shared/outline/select.js.map
+++ b/static/shared/outline/select.js.map
@@ -2,6 +2,6 @@
"version": 3,
"sources": ["select.ts"],
"sourcesContent": ["/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { TreeNavController } from './tree.js';\n\nexport class SelectNavController {\n constructor(private el: Element) {\n this.el.addEventListener('change', e => {\n const target = e.target as HTMLSelectElement;\n let href = target.value;\n if (!target.value.startsWith('/')) {\n href = '/' + href;\n }\n window.location.href = href;\n });\n }\n}\n\nexport function makeSelectNav(tree: TreeNavController): HTMLLabelElement {\n const label = document.createElement('label');\n label.classList.add('go-Label');\n label.setAttribute('aria-label', 'Menu');\n const select = document.createElement('select');\n select.classList.add('go-Select', 'js-selectNav');\n label.appendChild(select);\n const outline = document.createElement('optgroup');\n outline.label = 'Outline';\n select.appendChild(outline);\n const groupMap: Record<string, HTMLOptGroupElement> = {};\n let group: HTMLOptGroupElement;\n for (const t of tree.treeitems) {\n if (Number(t.depth) > 4) continue;\n if (t.groupTreeitem) {\n group = groupMap[t.groupTreeitem.label];\n if (!group) {\n group = groupMap[t.groupTreeitem.label] = document.createElement('optgroup');\n group.label = t.groupTreeitem.label;\n select.appendChild(group);\n }\n } else {\n group = outline;\n }\n const o = document.createElement('option');\n o.label = t.label;\n o.textContent = t.label;\n o.value = (t.el as HTMLAnchorElement).href.replace(window.location.origin, '').replace('/', '');\n group.appendChild(o);\n }\n tree.addObserver(t => {\n const hash = (t.el as HTMLAnchorElement).hash;\n const value = select.querySelector<HTMLOptionElement>(`[value$=\"${hash}\"]`)?.value;\n if (value) {\n select.value = value;\n }\n }, 50);\n return label;\n}\n"],
- "mappings": "AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,GASO,gCAA0B,CAC/B,YAAoB,EAAa,CAAb,UAClB,KAAK,GAAG,iBAAiB,SAAU,GAAK,CACtC,KAAM,GAAS,EAAE,OACjB,GAAI,GAAO,EAAO,MAClB,AAAK,EAAO,MAAM,WAAW,MAC3B,GAAO,IAAM,GAEf,OAAO,SAAS,KAAO,KAKtB,8BAAuB,EAA2C,CACvE,KAAM,GAAQ,SAAS,cAAc,SACrC,EAAM,UAAU,IAAI,YACpB,EAAM,aAAa,aAAc,QACjC,KAAM,GAAS,SAAS,cAAc,UACtC,EAAO,UAAU,IAAI,YAAa,gBAClC,EAAM,YAAY,GAClB,KAAM,GAAU,SAAS,cAAc,YACvC,EAAQ,MAAQ,UAChB,EAAO,YAAY,GACnB,KAAM,GAAgD,GACtD,GAAI,GACJ,SAAW,KAAK,GAAK,UAAW,CAC9B,GAAI,OAAO,EAAE,OAAS,EAAG,SACzB,AAAI,EAAE,cACJ,GAAQ,EAAS,EAAE,cAAc,OAC5B,GACH,GAAQ,EAAS,EAAE,cAAc,OAAS,SAAS,cAAc,YACjE,EAAM,MAAQ,EAAE,cAAc,MAC9B,EAAO,YAAY,KAGrB,EAAQ,EAEV,KAAM,GAAI,SAAS,cAAc,UACjC,EAAE,MAAQ,EAAE,MACZ,EAAE,YAAc,EAAE,MAClB,EAAE,MAAS,EAAE,GAAyB,KAAK,QAAQ,OAAO,SAAS,OAAQ,IAAI,QAAQ,IAAK,IAC5F,EAAM,YAAY,GAEpB,SAAK,YAAY,GAAK,CApDxB,MAqDI,KAAM,GAAQ,EAAE,GAAyB,KACnC,EAAQ,KAAO,cAAiC,YAAY,SAApD,cAA+D,MAC7E,AAAI,GACF,GAAO,MAAQ,IAEhB,IACI",
+ "mappings": "AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,GASO,OAA0B,CAC/B,YAAoB,EAAa,CAAb,UAClB,KAAK,GAAG,iBAAiB,SAAU,GAAK,CACtC,KAAM,GAAS,EAAE,OACjB,GAAI,GAAO,EAAO,MAClB,AAAK,EAAO,MAAM,WAAW,MAC3B,GAAO,IAAM,GAEf,OAAO,SAAS,KAAO,KAKtB,WAAuB,EAA2C,CACvE,KAAM,GAAQ,SAAS,cAAc,SACrC,EAAM,UAAU,IAAI,YACpB,EAAM,aAAa,aAAc,QACjC,KAAM,GAAS,SAAS,cAAc,UACtC,EAAO,UAAU,IAAI,YAAa,gBAClC,EAAM,YAAY,GAClB,KAAM,GAAU,SAAS,cAAc,YACvC,EAAQ,MAAQ,UAChB,EAAO,YAAY,GACnB,KAAM,GAAgD,GACtD,GAAI,GACJ,SAAW,KAAK,GAAK,UAAW,CAC9B,GAAI,OAAO,EAAE,OAAS,EAAG,SACzB,AAAI,EAAE,cACJ,GAAQ,EAAS,EAAE,cAAc,OAC5B,GACH,GAAQ,EAAS,EAAE,cAAc,OAAS,SAAS,cAAc,YACjE,EAAM,MAAQ,EAAE,cAAc,MAC9B,EAAO,YAAY,KAGrB,EAAQ,EAEV,KAAM,GAAI,SAAS,cAAc,UACjC,EAAE,MAAQ,EAAE,MACZ,EAAE,YAAc,EAAE,MAClB,EAAE,MAAS,EAAE,GAAyB,KAAK,QAAQ,OAAO,SAAS,OAAQ,IAAI,QAAQ,IAAK,IAC5F,EAAM,YAAY,GAEpB,SAAK,YAAY,GAAK,CApDxB,MAqDI,KAAM,GAAQ,EAAE,GAAyB,KACnC,EAAQ,KAAO,cAAiC,YAAY,SAApD,cAA+D,MAC7E,AAAI,GACF,GAAO,MAAQ,IAEhB,IACI",
"names": []
}
diff --git a/static/shared/outline/tree.js b/static/shared/outline/tree.js
index edfe534..144d17a 100644
--- a/static/shared/outline/tree.js
+++ b/static/shared/outline/tree.js
@@ -3,5 +3,5 @@
* Copyright 2021 The Go Authors. All rights reserved.
* Use of this source code is governed by a BSD-style
* license that can be found in the LICENSE file.
- */export class TreeNavController{constructor(e){this.el=e;this.handleResize=()=>{this.el.style.setProperty("--js-tree-height","100vh"),this.el.style.setProperty("--js-tree-height",this.el.clientHeight+"px")};this.treeitems=[],this.firstChars=[],this.firstTreeitem=null,this.lastTreeitem=null,this.observerCallbacks=[],this.init()}init(){this.handleResize(),window.addEventListener("resize",this.handleResize),this.findTreeItems(),this.updateVisibleTreeitems(),this.observeTargets(),this.firstTreeitem&&(this.firstTreeitem.el.tabIndex=0)}observeTargets(){this.addObserver(i=>{this.expandTreeitem(i),this.setSelected(i)});const e=new Map,t=new IntersectionObserver(i=>{for(const s of i)e.set(s.target.id,s.isIntersecting||s.intersectionRatio===1);for(const[s,r]of e)if(r){const a=this.treeitems.find(l=>{var n;return(n=l.el)==null?void 0:n.href.endsWith(`#${s}`)});if(a)for(const l of this.observerCallbacks)l(a);break}},{threshold:1,rootMargin:"-60px 0px 0px 0px"});for(const i of this.treeitems.map(s=>s.el.getAttribute("href")))if(i){const s=i.replace(window.location.origin,"").replace("/","").replace("#",""),r=document.getElementById(s);r&&t.observe(r)}}addObserver(e,t=200){this.observerCallbacks.push(f(e,t))}setFocusToNextItem(e){let t=null;for(let i=e.index+1;i<this.treeitems.length;i++){const s=this.treeitems[i];if(s.isVisible){t=s;break}}t&&this.setFocusToItem(t)}setFocusToPreviousItem(e){let t=null;for(let i=e.index-1;i>-1;i--){const s=this.treeitems[i];if(s.isVisible){t=s;break}}t&&this.setFocusToItem(t)}setFocusToParentItem(e){e.groupTreeitem&&this.setFocusToItem(e.groupTreeitem)}setFocusToFirstItem(){this.firstTreeitem&&this.setFocusToItem(this.firstTreeitem)}setFocusToLastItem(){this.lastTreeitem&&this.setFocusToItem(this.lastTreeitem)}setSelected(e){var t;for(const i of this.el.querySelectorAll('[aria-expanded="true"]'))i!==e.el&&(((t=i.nextElementSibling)==null?void 0:t.contains(e.el))||i.setAttribute("aria-expanded","false"));for(const i of this.el.querySelectorAll("[aria-selected]"))i!==e.el&&i.setAttribute("aria-selected","false");e.el.setAttribute("aria-selected","true"),this.updateVisibleTreeitems(),this.setFocusToItem(e,!1)}expandTreeitem(e){let t=e;for(;t;)t.isExpandable&&t.el.setAttribute("aria-expanded","true"),t=t.groupTreeitem;this.updateVisibleTreeitems()}expandAllSiblingItems(e){for(const t of this.treeitems)t.groupTreeitem===e.groupTreeitem&&t.isExpandable&&this.expandTreeitem(t)}collapseTreeitem(e){let t=null;e.isExpanded()?t=e:t=e.groupTreeitem,t&&(t.el.setAttribute("aria-expanded","false"),this.updateVisibleTreeitems(),this.setFocusToItem(t))}setFocusByFirstCharacter(e,t){let i,s;t=t.toLowerCase(),i=e.index+1,i===this.treeitems.length&&(i=0),s=this.getIndexFirstChars(i,t),s===-1&&(s=this.getIndexFirstChars(0,t)),s>-1&&this.setFocusToItem(this.treeitems[s])}findTreeItems(){const e=(t,i)=>{let s=i,r=t.firstElementChild;for(;r;)(r.tagName==="A"||r.tagName==="SPAN")&&(s=new u(r,this,i),this.treeitems.push(s),this.firstChars.push(s.label.substring(0,1).toLowerCase())),r.firstElementChild&&e(r,s),r=r.nextElementSibling};e(this.el,null),this.treeitems.map((t,i)=>t.index=i)}updateVisibleTreeitems(){this.firstTreeitem=this.treeitems[0];for(const e of this.treeitems){let t=e.groupTreeitem;for(e.isVisible=!0;t&&t.el!==this.el;)t.isExpanded()||(e.isVisible=!1),t=t.groupTreeitem;e.isVisible&&(this.lastTreeitem=e)}}setFocusToItem(e,t=!0){e.el.tabIndex=0,t&&e.el.focus();for(const i of this.treeitems)i!==e&&(i.el.tabIndex=-1)}getIndexFirstChars(e,t){for(let i=e;i<this.firstChars.length;i++)if(this.treeitems[i].isVisible&&t===this.firstChars[i])return i;return-1}}class u{constructor(e,t,i){var a,l,n,h,d;e.tabIndex=-1,this.el=e,this.groupTreeitem=i,this.label=(l=(a=e.textContent)==null?void 0:a.trim())!=null?l:"",this.tree=t,this.depth=((i==null?void 0:i.depth)||0)+1,this.index=0;const s=e.parentElement;(s==null?void 0:s.tagName.toLowerCase())==="li"&&(s==null||s.setAttribute("role","none")),e.setAttribute("aria-level",this.depth+""),e.getAttribute("aria-label")&&(this.label=(h=(n=e==null?void 0:e.getAttribute("aria-label"))==null?void 0:n.trim())!=null?h:""),this.isExpandable=!1,this.isVisible=!1,this.isInGroup=!!i;let r=e.nextElementSibling;for(;r;){if(r.tagName.toLowerCase()=="ul"){const m=`${(d=i==null?void 0:i.label)!=null?d:""} nav group ${this.label}`.replace(/[\W_]+/g,"_");e.setAttribute("aria-owns",m),e.setAttribute("aria-expanded","false"),r.setAttribute("role","group"),r.setAttribute("id",m),this.isExpandable=!0;break}r=r.nextElementSibling}this.init()}init(){this.el.tabIndex=-1,this.el.getAttribute("role")||this.el.setAttribute("role","treeitem"),this.el.addEventListener("keydown",this.handleKeydown.bind(this)),this.el.addEventListener("click",this.handleClick.bind(this)),this.el.addEventListener("focus",this.handleFocus.bind(this)),this.el.addEventListener("blur",this.handleBlur.bind(this))}isExpanded(){return this.isExpandable?this.el.getAttribute("aria-expanded")==="true":!1}isSelected(){return this.el.getAttribute("aria-selected")==="true"}handleClick(e){e.target!==this.el&&e.target!==this.el.firstElementChild||(this.isExpandable&&(this.isExpanded()&&this.isSelected()?this.tree.collapseTreeitem(this):this.tree.expandTreeitem(this),e.stopPropagation()),this.tree.setSelected(this))}handleFocus(){var t;let e=this.el;this.isExpandable&&(e=(t=e.firstElementChild)!=null?t:e),e.classList.add("focus")}handleBlur(){var t;let e=this.el;this.isExpandable&&(e=(t=e.firstElementChild)!=null?t:e),e.classList.remove("focus")}handleKeydown(e){if(e.altKey||e.ctrlKey||e.metaKey)return;let t=!1;switch(e.key){case" ":case"Enter":this.isExpandable?(this.isExpanded()&&this.isSelected()?this.tree.collapseTreeitem(this):this.tree.expandTreeitem(this),t=!0):e.stopPropagation(),this.tree.setSelected(this);break;case"ArrowUp":this.tree.setFocusToPreviousItem(this),t=!0;break;case"ArrowDown":this.tree.setFocusToNextItem(this),t=!0;break;case"ArrowRight":this.isExpandable&&(this.isExpanded()?this.tree.setFocusToNextItem(this):this.tree.expandTreeitem(this)),t=!0;break;case"ArrowLeft":this.isExpandable&&this.isExpanded()?(this.tree.collapseTreeitem(this),t=!0):this.isInGroup&&(this.tree.setFocusToParentItem(this),t=!0);break;case"Home":this.tree.setFocusToFirstItem(),t=!0;break;case"End":this.tree.setFocusToLastItem(),t=!0;break;default:e.key.length===1&&e.key.match(/\S/)&&(e.key=="*"?this.tree.expandAllSiblingItems(this):this.tree.setFocusByFirstCharacter(this,e.key),t=!0);break}t&&(e.stopPropagation(),e.preventDefault())}}function f(o,e){let t;return(...i)=>{const s=()=>{t=null,o(...i)};t&&clearTimeout(t),t=setTimeout(s,e)}}
+ */class b{constructor(e){this.el=e;this.handleResize=()=>{this.el.style.setProperty("--js-tree-height","100vh"),this.el.style.setProperty("--js-tree-height",this.el.clientHeight+"px")};this.treeitems=[],this.firstChars=[],this.firstTreeitem=null,this.lastTreeitem=null,this.observerCallbacks=[],this.init()}init(){this.handleResize(),window.addEventListener("resize",this.handleResize),this.findTreeItems(),this.updateVisibleTreeitems(),this.observeTargets(),this.firstTreeitem&&(this.firstTreeitem.el.tabIndex=0)}observeTargets(){this.addObserver(i=>{this.expandTreeitem(i),this.setSelected(i)});const e=new Map,t=new IntersectionObserver(i=>{for(const s of i)e.set(s.target.id,s.isIntersecting||s.intersectionRatio===1);for(const[s,r]of e)if(r){const a=this.treeitems.find(l=>{var n;return(n=l.el)==null?void 0:n.href.endsWith(`#${s}`)});if(a)for(const l of this.observerCallbacks)l(a);break}},{threshold:1,rootMargin:"-60px 0px 0px 0px"});for(const i of this.treeitems.map(s=>s.el.getAttribute("href")))if(i){const s=i.replace(window.location.origin,"").replace("/","").replace("#",""),r=document.getElementById(s);r&&t.observe(r)}}addObserver(e,t=200){this.observerCallbacks.push(f(e,t))}setFocusToNextItem(e){let t=null;for(let i=e.index+1;i<this.treeitems.length;i++){const s=this.treeitems[i];if(s.isVisible){t=s;break}}t&&this.setFocusToItem(t)}setFocusToPreviousItem(e){let t=null;for(let i=e.index-1;i>-1;i--){const s=this.treeitems[i];if(s.isVisible){t=s;break}}t&&this.setFocusToItem(t)}setFocusToParentItem(e){e.groupTreeitem&&this.setFocusToItem(e.groupTreeitem)}setFocusToFirstItem(){this.firstTreeitem&&this.setFocusToItem(this.firstTreeitem)}setFocusToLastItem(){this.lastTreeitem&&this.setFocusToItem(this.lastTreeitem)}setSelected(e){var t;for(const i of this.el.querySelectorAll('[aria-expanded="true"]'))i!==e.el&&(((t=i.nextElementSibling)==null?void 0:t.contains(e.el))||i.setAttribute("aria-expanded","false"));for(const i of this.el.querySelectorAll("[aria-selected]"))i!==e.el&&i.setAttribute("aria-selected","false");e.el.setAttribute("aria-selected","true"),this.updateVisibleTreeitems(),this.setFocusToItem(e,!1)}expandTreeitem(e){let t=e;for(;t;)t.isExpandable&&t.el.setAttribute("aria-expanded","true"),t=t.groupTreeitem;this.updateVisibleTreeitems()}expandAllSiblingItems(e){for(const t of this.treeitems)t.groupTreeitem===e.groupTreeitem&&t.isExpandable&&this.expandTreeitem(t)}collapseTreeitem(e){let t=null;e.isExpanded()?t=e:t=e.groupTreeitem,t&&(t.el.setAttribute("aria-expanded","false"),this.updateVisibleTreeitems(),this.setFocusToItem(t))}setFocusByFirstCharacter(e,t){let i,s;t=t.toLowerCase(),i=e.index+1,i===this.treeitems.length&&(i=0),s=this.getIndexFirstChars(i,t),s===-1&&(s=this.getIndexFirstChars(0,t)),s>-1&&this.setFocusToItem(this.treeitems[s])}findTreeItems(){const e=(t,i)=>{let s=i,r=t.firstElementChild;for(;r;)(r.tagName==="A"||r.tagName==="SPAN")&&(s=new u(r,this,i),this.treeitems.push(s),this.firstChars.push(s.label.substring(0,1).toLowerCase())),r.firstElementChild&&e(r,s),r=r.nextElementSibling};e(this.el,null),this.treeitems.map((t,i)=>t.index=i)}updateVisibleTreeitems(){this.firstTreeitem=this.treeitems[0];for(const e of this.treeitems){let t=e.groupTreeitem;for(e.isVisible=!0;t&&t.el!==this.el;)t.isExpanded()||(e.isVisible=!1),t=t.groupTreeitem;e.isVisible&&(this.lastTreeitem=e)}}setFocusToItem(e,t=!0){e.el.tabIndex=0,t&&e.el.focus();for(const i of this.treeitems)i!==e&&(i.el.tabIndex=-1)}getIndexFirstChars(e,t){for(let i=e;i<this.firstChars.length;i++)if(this.treeitems[i].isVisible&&t===this.firstChars[i])return i;return-1}}class u{constructor(e,t,i){var a,l,n,h,d;e.tabIndex=-1,this.el=e,this.groupTreeitem=i,this.label=(l=(a=e.textContent)==null?void 0:a.trim())!=null?l:"",this.tree=t,this.depth=((i==null?void 0:i.depth)||0)+1,this.index=0;const s=e.parentElement;(s==null?void 0:s.tagName.toLowerCase())==="li"&&(s==null||s.setAttribute("role","none")),e.setAttribute("aria-level",this.depth+""),e.getAttribute("aria-label")&&(this.label=(h=(n=e==null?void 0:e.getAttribute("aria-label"))==null?void 0:n.trim())!=null?h:""),this.isExpandable=!1,this.isVisible=!1,this.isInGroup=!!i;let r=e.nextElementSibling;for(;r;){if(r.tagName.toLowerCase()=="ul"){const m=`${(d=i==null?void 0:i.label)!=null?d:""} nav group ${this.label}`.replace(/[\W_]+/g,"_");e.setAttribute("aria-owns",m),e.setAttribute("aria-expanded","false"),r.setAttribute("role","group"),r.setAttribute("id",m),this.isExpandable=!0;break}r=r.nextElementSibling}this.init()}init(){this.el.tabIndex=-1,this.el.getAttribute("role")||this.el.setAttribute("role","treeitem"),this.el.addEventListener("keydown",this.handleKeydown.bind(this)),this.el.addEventListener("click",this.handleClick.bind(this)),this.el.addEventListener("focus",this.handleFocus.bind(this)),this.el.addEventListener("blur",this.handleBlur.bind(this))}isExpanded(){return this.isExpandable?this.el.getAttribute("aria-expanded")==="true":!1}isSelected(){return this.el.getAttribute("aria-selected")==="true"}handleClick(e){e.target!==this.el&&e.target!==this.el.firstElementChild||(this.isExpandable&&(this.isExpanded()&&this.isSelected()?this.tree.collapseTreeitem(this):this.tree.expandTreeitem(this),e.stopPropagation()),this.tree.setSelected(this))}handleFocus(){var t;let e=this.el;this.isExpandable&&(e=(t=e.firstElementChild)!=null?t:e),e.classList.add("focus")}handleBlur(){var t;let e=this.el;this.isExpandable&&(e=(t=e.firstElementChild)!=null?t:e),e.classList.remove("focus")}handleKeydown(e){if(e.altKey||e.ctrlKey||e.metaKey)return;let t=!1;switch(e.key){case" ":case"Enter":this.isExpandable?(this.isExpanded()&&this.isSelected()?this.tree.collapseTreeitem(this):this.tree.expandTreeitem(this),t=!0):e.stopPropagation(),this.tree.setSelected(this);break;case"ArrowUp":this.tree.setFocusToPreviousItem(this),t=!0;break;case"ArrowDown":this.tree.setFocusToNextItem(this),t=!0;break;case"ArrowRight":this.isExpandable&&(this.isExpanded()?this.tree.setFocusToNextItem(this):this.tree.expandTreeitem(this)),t=!0;break;case"ArrowLeft":this.isExpandable&&this.isExpanded()?(this.tree.collapseTreeitem(this),t=!0):this.isInGroup&&(this.tree.setFocusToParentItem(this),t=!0);break;case"Home":this.tree.setFocusToFirstItem(),t=!0;break;case"End":this.tree.setFocusToLastItem(),t=!0;break;default:e.key.length===1&&e.key.match(/\S/)&&(e.key=="*"?this.tree.expandAllSiblingItems(this):this.tree.setFocusByFirstCharacter(this,e.key),t=!0);break}t&&(e.stopPropagation(),e.preventDefault())}}function f(o,e){let t;return(...i)=>{const s=()=>{t=null,o(...i)};t&&clearTimeout(t),t=setTimeout(s,e)}}export{b as TreeNavController};
//# sourceMappingURL=tree.js.map
diff --git a/static/shared/outline/tree.js.map b/static/shared/outline/tree.js.map
index fcf4957..d19e390 100644
--- a/static/shared/outline/tree.js.map
+++ b/static/shared/outline/tree.js.map
@@ -2,6 +2,6 @@
"version": 3,
"sources": ["tree.ts"],
"sourcesContent": ["/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * TreeNavController is the navigation tree component of the documentation page.\n * It adds accessiblity attributes to a tree, observes the heading elements\n * focus the topmost link for headings visible on the page, and implements the\n * WAI-ARIA Treeview Design Pattern with full\n * [keyboard support](https://www.w3.org/TR/wai-aria-practices/examples/treeview/treeview-2/treeview-2a.html#kbd_label).\n */\nexport class TreeNavController {\n treeitems: TreeItem[];\n\n /**\n * firstChars is the first character of each treeitem in the same order\n * as this.treeitems. We use this array to set focus by character when\n * navigating the tree with a keyboard.\n */\n private firstChars: string[];\n private firstTreeitem: TreeItem | null;\n private lastTreeitem: TreeItem | null;\n private observerCallbacks: ((t: TreeItem) => void)[];\n\n constructor(private el: HTMLElement) {\n this.treeitems = [];\n this.firstChars = [];\n this.firstTreeitem = null;\n this.lastTreeitem = null;\n this.observerCallbacks = [];\n this.init();\n }\n\n private init(): void {\n this.handleResize();\n window.addEventListener('resize', this.handleResize);\n this.findTreeItems();\n this.updateVisibleTreeitems();\n this.observeTargets();\n if (this.firstTreeitem) {\n this.firstTreeitem.el.tabIndex = 0;\n }\n }\n\n private handleResize = (): void => {\n this.el.style.setProperty('--js-tree-height', '100vh');\n this.el.style.setProperty('--js-tree-height', this.el.clientHeight + 'px');\n };\n\n private observeTargets() {\n this.addObserver(treeitem => {\n this.expandTreeitem(treeitem);\n this.setSelected(treeitem);\n // TODO: Fix scroll issue in https://golang.org/issue/47450.\n // treeitem.el.scrollIntoView({ block: 'nearest' });\n });\n\n const targets = new Map<string, boolean>();\n const observer = new IntersectionObserver(\n entries => {\n for (const entry of entries) {\n targets.set(entry.target.id, entry.isIntersecting || entry.intersectionRatio === 1);\n }\n for (const [id, isIntersecting] of targets) {\n if (isIntersecting) {\n const active = this.treeitems.find(t =>\n (t.el as HTMLAnchorElement)?.href.endsWith(`#${id}`)\n );\n if (active) {\n for (const fn of this.observerCallbacks) {\n fn(active);\n }\n }\n break;\n }\n }\n },\n {\n threshold: 1.0,\n rootMargin: '-60px 0px 0px 0px',\n }\n );\n\n for (const href of this.treeitems.map(t => t.el.getAttribute('href'))) {\n if (href) {\n const id = href.replace(window.location.origin, '').replace('/', '').replace('#', '');\n const target = document.getElementById(id);\n if (target) {\n observer.observe(target);\n }\n }\n }\n }\n\n addObserver(fn: (t: TreeItem) => void, delay = 200): void {\n this.observerCallbacks.push(debounce(fn, delay));\n }\n\n setFocusToNextItem(currentItem: TreeItem): void {\n let nextItem = null;\n for (let i = currentItem.index + 1; i < this.treeitems.length; i++) {\n const ti = this.treeitems[i];\n if (ti.isVisible) {\n nextItem = ti;\n break;\n }\n }\n if (nextItem) {\n this.setFocusToItem(nextItem);\n }\n }\n\n setFocusToPreviousItem(currentItem: TreeItem): void {\n let prevItem = null;\n for (let i = currentItem.index - 1; i > -1; i--) {\n const ti = this.treeitems[i];\n if (ti.isVisible) {\n prevItem = ti;\n break;\n }\n }\n if (prevItem) {\n this.setFocusToItem(prevItem);\n }\n }\n\n setFocusToParentItem(currentItem: TreeItem): void {\n if (currentItem.groupTreeitem) {\n this.setFocusToItem(currentItem.groupTreeitem);\n }\n }\n\n setFocusToFirstItem(): void {\n this.firstTreeitem && this.setFocusToItem(this.firstTreeitem);\n }\n\n setFocusToLastItem(): void {\n this.lastTreeitem && this.setFocusToItem(this.lastTreeitem);\n }\n\n setSelected(currentItem: TreeItem): void {\n for (const l1 of this.el.querySelectorAll('[aria-expanded=\"true\"]')) {\n if (l1 === currentItem.el) continue;\n if (!l1.nextElementSibling?.contains(currentItem.el)) {\n l1.setAttribute('aria-expanded', 'false');\n }\n }\n for (const l1 of this.el.querySelectorAll('[aria-selected]')) {\n if (l1 !== currentItem.el) {\n l1.setAttribute('aria-selected', 'false');\n }\n }\n currentItem.el.setAttribute('aria-selected', 'true');\n this.updateVisibleTreeitems();\n this.setFocusToItem(currentItem, false);\n }\n\n expandTreeitem(treeitem: TreeItem): void {\n let currentItem: TreeItem | null = treeitem;\n while (currentItem) {\n if (currentItem.isExpandable) {\n currentItem.el.setAttribute('aria-expanded', 'true');\n }\n currentItem = currentItem.groupTreeitem;\n }\n this.updateVisibleTreeitems();\n }\n\n expandAllSiblingItems(currentItem: TreeItem): void {\n for (const ti of this.treeitems) {\n if (ti.groupTreeitem === currentItem.groupTreeitem && ti.isExpandable) {\n this.expandTreeitem(ti);\n }\n }\n }\n\n collapseTreeitem(currentItem: TreeItem): void {\n let groupTreeitem = null;\n\n if (currentItem.isExpanded()) {\n groupTreeitem = currentItem;\n } else {\n groupTreeitem = currentItem.groupTreeitem;\n }\n\n if (groupTreeitem) {\n groupTreeitem.el.setAttribute('aria-expanded', 'false');\n this.updateVisibleTreeitems();\n this.setFocusToItem(groupTreeitem);\n }\n }\n\n setFocusByFirstCharacter(currentItem: TreeItem, char: string): void {\n let start: number, index: number;\n char = char.toLowerCase();\n\n // Get start index for search based on position of currentItem\n start = currentItem.index + 1;\n if (start === this.treeitems.length) {\n start = 0;\n }\n\n // Check remaining slots in the menu\n index = this.getIndexFirstChars(start, char);\n\n // If not found in remaining slots, check from beginning\n if (index === -1) {\n index = this.getIndexFirstChars(0, char);\n }\n\n // If match was found...\n if (index > -1) {\n this.setFocusToItem(this.treeitems[index]);\n }\n }\n\n private findTreeItems() {\n const findItems = (el: HTMLElement, group: TreeItem | null) => {\n let ti = group;\n let curr = el.firstElementChild as HTMLElement;\n while (curr) {\n if (curr.tagName === 'A' || curr.tagName === 'SPAN') {\n ti = new TreeItem(curr, this, group);\n this.treeitems.push(ti);\n this.firstChars.push(ti.label.substring(0, 1).toLowerCase());\n }\n if (curr.firstElementChild) {\n findItems(curr, ti);\n }\n curr = curr.nextElementSibling as HTMLElement;\n }\n };\n findItems(this.el as HTMLElement, null);\n this.treeitems.map((ti, idx) => (ti.index = idx));\n }\n\n private updateVisibleTreeitems(): void {\n this.firstTreeitem = this.treeitems[0];\n\n for (const ti of this.treeitems) {\n let parent = ti.groupTreeitem;\n ti.isVisible = true;\n while (parent && parent.el !== this.el) {\n if (!parent.isExpanded()) {\n ti.isVisible = false;\n }\n parent = parent.groupTreeitem;\n }\n if (ti.isVisible) {\n this.lastTreeitem = ti;\n }\n }\n }\n\n private setFocusToItem(treeitem: TreeItem, focusEl = true) {\n treeitem.el.tabIndex = 0;\n if (focusEl) {\n treeitem.el.focus();\n }\n for (const ti of this.treeitems) {\n if (ti !== treeitem) {\n ti.el.tabIndex = -1;\n }\n }\n }\n\n private getIndexFirstChars(startIndex: number, char: string): number {\n for (let i = startIndex; 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}
diff --git a/static/shared/playground/playground.js b/static/shared/playground/playground.js
index 620c9a0..5f85361 100644
--- a/static/shared/playground/playground.js
+++ b/static/shared/playground/playground.js
@@ -3,5 +3,5 @@
* Copyright 2021 The Go Authors. All rights reserved.
* Use of this source code is governed by a BSD-style
* license that can be found in the LICENSE file.
- */const o={PLAY_HREF:".js-exampleHref",PLAY_CONTAINER:".js-exampleContainer",EXAMPLE_INPUT:".Documentation-exampleCode",EXAMPLE_OUTPUT:".Documentation-exampleOutput",EXAMPLE_ERROR:".Documentation-exampleError",PLAY_BUTTON:".Documentation-examplePlayButton",SHARE_BUTTON:".Documentation-exampleShareButton",FORMAT_BUTTON:".Documentation-exampleFormatButton",RUN_BUTTON:".Documentation-exampleRunButton"};export class PlaygroundExampleController{constructor(t){this.exampleEl=t;var e,r,n,l;this.exampleEl=t,this.anchorEl=t.querySelector("a"),this.errorEl=t.querySelector(o.EXAMPLE_ERROR),this.playButtonEl=t.querySelector(o.PLAY_BUTTON),this.shareButtonEl=t.querySelector(o.SHARE_BUTTON),this.formatButtonEl=t.querySelector(o.FORMAT_BUTTON),this.runButtonEl=t.querySelector(o.RUN_BUTTON),this.inputEl=this.makeTextArea(t.querySelector(o.EXAMPLE_INPUT)),this.outputEl=t.querySelector(o.EXAMPLE_OUTPUT),(e=this.playButtonEl)==null||e.addEventListener("click",()=>this.handleShareButtonClick()),(r=this.shareButtonEl)==null||r.addEventListener("click",()=>this.handleShareButtonClick()),(n=this.formatButtonEl)==null||n.addEventListener("click",()=>this.handleFormatButtonClick()),(l=this.runButtonEl)==null||l.addEventListener("click",()=>this.handleRunButtonClick()),!!this.inputEl&&(this.resize(),this.inputEl.addEventListener("keyup",()=>this.resize()),this.inputEl.addEventListener("keydown",s=>this.onKeydown(s)))}makeTextArea(t){var r,n;const e=document.createElement("textarea");return e.classList.add("Documentation-exampleCode","code"),e.spellcheck=!1,e.value=(r=t==null?void 0:t.textContent)!=null?r:"",(n=t==null?void 0:t.parentElement)==null||n.replaceChild(e,t),e}getAnchorHash(){var t;return(t=this.anchorEl)==null?void 0:t.hash}expand(){this.exampleEl.open=!0}resize(){var t;if((t=this.inputEl)==null?void 0:t.value){const e=(this.inputEl.value.match(/\n/g)||[]).length;this.inputEl.style.height=`${(20+e*20+12+2)/16}rem`}}onKeydown(t){t.key==="Tab"&&(document.execCommand("insertText",!1," "),t.preventDefault())}setInputText(t){this.inputEl&&(this.inputEl.value=t)}setOutputText(t){this.outputEl&&(this.outputEl.textContent=t)}setErrorText(t){this.errorEl&&(this.errorEl.textContent=t),this.setOutputText("An error has occurred\u2026")}handleShareButtonClick(){var e;const t="https://play.golang.org/p/";this.setOutputText("Waiting for remote server\u2026"),fetch("/play/share",{method:"POST",body:(e=this.inputEl)==null?void 0:e.value}).then(r=>r.text()).then(r=>{const n=t+r;this.setOutputText(`<a href="${n}">${n}</a>`),window.open(n)}).catch(r=>{this.setErrorText(r)})}handleFormatButtonClick(){var e,r;this.setOutputText("Waiting for remote server\u2026");const t=new FormData;t.append("body",(r=(e=this.inputEl)==null?void 0:e.value)!=null?r:""),fetch("/play/fmt",{method:"POST",body:t}).then(n=>n.json()).then(({Body:n,Error:l})=>{this.setOutputText(l||"Done."),n&&(this.setInputText(n),this.resize())}).catch(n=>{this.setErrorText(n)})}handleRunButtonClick(){var t;this.setOutputText("Waiting for remote server\u2026"),fetch("/play/compile",{method:"POST",body:JSON.stringify({body:(t=this.inputEl)==null?void 0:t.value,version:2})}).then(e=>e.json()).then(async({Events:e,Errors:r})=>{this.setOutputText(r||"");for(const n of e||[])this.setOutputText(n.Message),await new Promise(l=>setTimeout(l,n.Delay/1e6))}).catch(e=>{this.setErrorText(e)})}}const i=location.hash.match(/^#(example-.*)$/);if(i){const a=document.getElementById(i[1]);a&&(a.open=!0)}const u=[...document.querySelectorAll(o.PLAY_HREF)],h=a=>u.find(t=>t.hash===a.getAnchorHash());for(const a of document.querySelectorAll(o.PLAY_CONTAINER)){const t=new PlaygroundExampleController(a),e=h(t);e?e.addEventListener("click",()=>{t.expand()}):console.warn("example href not found")}
+ */const o={PLAY_HREF:".js-exampleHref",PLAY_CONTAINER:".js-exampleContainer",EXAMPLE_INPUT:".Documentation-exampleCode",EXAMPLE_OUTPUT:".Documentation-exampleOutput",EXAMPLE_ERROR:".Documentation-exampleError",PLAY_BUTTON:".Documentation-examplePlayButton",SHARE_BUTTON:".Documentation-exampleShareButton",FORMAT_BUTTON:".Documentation-exampleFormatButton",RUN_BUTTON:".Documentation-exampleRunButton"};class u{constructor(t){this.exampleEl=t;var e,r,n,l;this.exampleEl=t,this.anchorEl=t.querySelector("a"),this.errorEl=t.querySelector(o.EXAMPLE_ERROR),this.playButtonEl=t.querySelector(o.PLAY_BUTTON),this.shareButtonEl=t.querySelector(o.SHARE_BUTTON),this.formatButtonEl=t.querySelector(o.FORMAT_BUTTON),this.runButtonEl=t.querySelector(o.RUN_BUTTON),this.inputEl=this.makeTextArea(t.querySelector(o.EXAMPLE_INPUT)),this.outputEl=t.querySelector(o.EXAMPLE_OUTPUT),(e=this.playButtonEl)==null||e.addEventListener("click",()=>this.handleShareButtonClick()),(r=this.shareButtonEl)==null||r.addEventListener("click",()=>this.handleShareButtonClick()),(n=this.formatButtonEl)==null||n.addEventListener("click",()=>this.handleFormatButtonClick()),(l=this.runButtonEl)==null||l.addEventListener("click",()=>this.handleRunButtonClick()),!!this.inputEl&&(this.resize(),this.inputEl.addEventListener("keyup",()=>this.resize()),this.inputEl.addEventListener("keydown",s=>this.onKeydown(s)))}makeTextArea(t){var r,n;const e=document.createElement("textarea");return e.classList.add("Documentation-exampleCode","code"),e.spellcheck=!1,e.value=(r=t==null?void 0:t.textContent)!=null?r:"",(n=t==null?void 0:t.parentElement)==null||n.replaceChild(e,t),e}getAnchorHash(){var t;return(t=this.anchorEl)==null?void 0:t.hash}expand(){this.exampleEl.open=!0}resize(){var t;if((t=this.inputEl)==null?void 0:t.value){const e=(this.inputEl.value.match(/\n/g)||[]).length;this.inputEl.style.height=`${(20+e*20+12+2)/16}rem`}}onKeydown(t){t.key==="Tab"&&(document.execCommand("insertText",!1," "),t.preventDefault())}setInputText(t){this.inputEl&&(this.inputEl.value=t)}setOutputText(t){this.outputEl&&(this.outputEl.textContent=t)}setErrorText(t){this.errorEl&&(this.errorEl.textContent=t),this.setOutputText("An error has occurred\u2026")}handleShareButtonClick(){var e;const t="https://play.golang.org/p/";this.setOutputText("Waiting for remote server\u2026"),fetch("/play/share",{method:"POST",body:(e=this.inputEl)==null?void 0:e.value}).then(r=>r.text()).then(r=>{const n=t+r;this.setOutputText(`<a href="${n}">${n}</a>`),window.open(n)}).catch(r=>{this.setErrorText(r)})}handleFormatButtonClick(){var e,r;this.setOutputText("Waiting for remote server\u2026");const t=new FormData;t.append("body",(r=(e=this.inputEl)==null?void 0:e.value)!=null?r:""),fetch("/play/fmt",{method:"POST",body:t}).then(n=>n.json()).then(({Body:n,Error:l})=>{this.setOutputText(l||"Done."),n&&(this.setInputText(n),this.resize())}).catch(n=>{this.setErrorText(n)})}handleRunButtonClick(){var t;this.setOutputText("Waiting for remote server\u2026"),fetch("/play/compile",{method:"POST",body:JSON.stringify({body:(t=this.inputEl)==null?void 0:t.value,version:2})}).then(e=>e.json()).then(async({Events:e,Errors:r})=>{this.setOutputText(r||"");for(const n of e||[])this.setOutputText(n.Message),await new Promise(l=>setTimeout(l,n.Delay/1e6))}).catch(e=>{this.setErrorText(e)})}}const i=location.hash.match(/^#(example-.*)$/);if(i){const a=document.getElementById(i[1]);a&&(a.open=!0)}const h=[...document.querySelectorAll(o.PLAY_HREF)],c=a=>h.find(t=>t.hash===a.getAnchorHash());for(const a of document.querySelectorAll(o.PLAY_CONTAINER)){const t=new u(a),e=c(t);e?e.addEventListener("click",()=>{t.expand()}):console.warn("example href not found")}export{u as PlaygroundExampleController};
//# sourceMappingURL=playground.js.map
diff --git a/static/shared/playground/playground.js.map b/static/shared/playground/playground.js.map
index dd6db06..35ddf5b 100644
--- a/static/shared/playground/playground.js.map
+++ b/static/shared/playground/playground.js.map
@@ -2,6 +2,6 @@
"version": 3,
"sources": ["playground.ts"],
"sourcesContent": ["/*!\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n// This file implements the playground implementation of the documentation\n// page. The playground involves a \"play\" button that allows you to open up\n// a new link to play.golang.org using the example code.\n\n// The CSS is in static/frontend/unit/main/_doc.css\n\n/**\n * CSS classes used by PlaygroundExampleController\n */\nconst PlayExampleClassName = {\n PLAY_HREF: '.js-exampleHref',\n PLAY_CONTAINER: '.js-exampleContainer',\n EXAMPLE_INPUT: '.Documentation-exampleCode',\n EXAMPLE_OUTPUT: '.Documentation-exampleOutput',\n EXAMPLE_ERROR: '.Documentation-exampleError',\n PLAY_BUTTON: '.Documentation-examplePlayButton',\n SHARE_BUTTON: '.Documentation-exampleShareButton',\n FORMAT_BUTTON: '.Documentation-exampleFormatButton',\n RUN_BUTTON: '.Documentation-exampleRunButton',\n};\n\n/**\n * This controller enables playground examples to expand their dropdown or\n * generate shareable Go Playground URLs.\n */\nexport class PlaygroundExampleController {\n /**\n * The anchor tag used to identify the container with an example href.\n * There is only one in an example container div.\n */\n private readonly anchorEl: HTMLAnchorElement | null;\n\n /**\n * The error element\n */\n private readonly errorEl: Element | null;\n\n /**\n * Buttons that redirect to an example's playground, this element\n * only exists in executable examples.\n */\n private readonly playButtonEl: Element | null;\n private readonly shareButtonEl: Element | null;\n\n /**\n * Button that formats the code in an example's playground.\n */\n private readonly formatButtonEl: Element | null;\n\n /**\n * Button that runs the code in an example's playground, this element\n * only exists in executable examples.\n */\n private readonly runButtonEl: Element | null;\n\n /**\n * The executable code of an example.\n */\n private readonly inputEl: HTMLTextAreaElement | null;\n\n /**\n * The output of the given example code. This only exists if the\n * author of the package provides an output for this example.\n */\n private readonly outputEl: Element | null;\n\n /**\n * @param exampleEl The div that contains playground content for the given example.\n */\n constructor(private readonly exampleEl: HTMLDetailsElement) {\n this.exampleEl = exampleEl;\n this.anchorEl = exampleEl.querySelector('a');\n this.errorEl = exampleEl.querySelector(PlayExampleClassName.EXAMPLE_ERROR);\n this.playButtonEl = exampleEl.querySelector(PlayExampleClassName.PLAY_BUTTON);\n this.shareButtonEl = exampleEl.querySelector(PlayExampleClassName.SHARE_BUTTON);\n this.formatButtonEl = exampleEl.querySelector(PlayExampleClassName.FORMAT_BUTTON);\n this.runButtonEl = exampleEl.querySelector(PlayExampleClassName.RUN_BUTTON);\n this.inputEl = this.makeTextArea(exampleEl.querySelector(PlayExampleClassName.EXAMPLE_INPUT));\n this.outputEl = exampleEl.querySelector(PlayExampleClassName.EXAMPLE_OUTPUT);\n\n // This is legacy listener to be replaced the listener for shareButtonEl.\n this.playButtonEl?.addEventListener('click', () => this.handleShareButtonClick());\n this.shareButtonEl?.addEventListener('click', () => this.handleShareButtonClick());\n this.formatButtonEl?.addEventListener('click', () => this.handleFormatButtonClick());\n this.runButtonEl?.addEventListener('click', () => this.handleRunButtonClick());\n\n if (!this.inputEl) return;\n\n this.resize();\n this.inputEl.addEventListener('keyup', () => this.resize());\n this.inputEl.addEventListener('keydown', e => this.onKeydown(e));\n }\n\n /**\n * Replace the pre element with a textarea. 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'';\n el?.parentElement?.replaceChild(t, el);\n return t;\n }\n\n /**\n * Retrieve the hash value of the anchor element.\n */\n getAnchorHash(): string | undefined {\n return this.anchorEl?.hash;\n }\n\n /**\n * Expands the current playground example.\n */\n expand(): void {\n this.exampleEl.open = true;\n }\n\n /**\n * Resizes the input element to accomodate the amount of text present.\n */\n private resize(): void {\n if (this.inputEl?.value) {\n const numLineBreaks = (this.inputEl.value.match(/\\n/g) || []).length;\n // min-height + lines x line-height + padding + border\n this.inputEl.style.height = `${(20 + numLineBreaks * 20 + 12 + 2) / 16}rem`;\n }\n }\n\n /**\n * Handler to override keyboard behavior in the playground's\n * textarea element.\n *\n * Tab key inserts tabs into the example playground instead of\n * switching to the next interactive element.\n * @param e input element keyboard event.\n */\n private onKeydown(e: KeyboardEvent) {\n if (e.key === 'Tab') {\n document.execCommand('insertText', false, '\\t');\n e.preventDefault();\n }\n }\n\n /**\n * Changes the text of the example's input box.\n */\n private setInputText(output: string) {\n if (this.inputEl) {\n this.inputEl.value = output;\n }\n }\n\n /**\n * Changes the text of the example's output box.\n */\n private setOutputText(output: string) {\n if (this.outputEl) {\n this.outputEl.textContent = output;\n }\n }\n\n /**\n * Sets the error message text and overwrites\n * output box to indicate a failed response.\n */\n private setErrorText(err: string) {\n if (this.errorEl) {\n this.errorEl.textContent = err;\n }\n this.setOutputText('An error has occurred\u2026');\n }\n\n /**\n * Opens a new window to play.golang.org using the\n * example snippet's code in the playground.\n */\n private handleShareButtonClick() {\n const PLAYGROUND_BASE_URL = 'https://play.golang.org/p/';\n\n this.setOutputText('Waiting for remote server\u2026');\n\n fetch('/play/share', {\n method: 'POST',\n body: this.inputEl?.value,\n })\n .then(res => res.text())\n .then(shareId => {\n const href = PLAYGROUND_BASE_URL + shareId;\n this.setOutputText(`<a href=\"${href}\">${href}</a>`);\n window.open(href);\n })\n .catch(err => {\n this.setErrorText(err);\n });\n }\n\n /**\n * Runs gofmt on the example snippet in the playground.\n */\n private handleFormatButtonClick() {\n this.setOutputText('Waiting for remote server\u2026');\n const body = new FormData();\n body.append('body', this.inputEl?.value ?? '');\n\n fetch('/play/fmt', {\n method: 'POST',\n body: body,\n })\n .then(res => res.json())\n .then(({ Body, Error }) => {\n this.setOutputText(Error || 'Done.');\n if (Body) {\n this.setInputText(Body);\n this.resize();\n }\n })\n .catch(err => {\n this.setErrorText(err);\n });\n }\n\n /**\n * Runs the code snippet in the example playground.\n */\n private handleRunButtonClick() {\n this.setOutputText('Waiting for remote server\u2026');\n\n fetch('/play/compile', {\n method: 'POST',\n body: JSON.stringify({ body: this.inputEl?.value, version: 2 }),\n })\n .then(res => res.json())\n .then(async ({ Events, Errors }) => {\n this.setOutputText(Errors || '');\n for (const e of Events || []) {\n this.setOutputText(e.Message);\n await new Promise(resolve => setTimeout(resolve, e.Delay / 1000000));\n }\n })\n .catch(err => {\n this.setErrorText(err);\n });\n }\n}\n\nconst exampleHashRegex = location.hash.match(/^#(example-.*)$/);\nif (exampleHashRegex) {\n const exampleHashEl = document.getElementById(exampleHashRegex[1]) as HTMLDetailsElement;\n if (exampleHashEl) {\n exampleHashEl.open = true;\n }\n}\n\n// We use a spread operator to convert a nodelist into an array of elements.\nconst exampleHrefs = [\n ...document.querySelectorAll<HTMLAnchorElement>(PlayExampleClassName.PLAY_HREF),\n];\n\n/**\n * Sometimes exampleHrefs and playContainers are in different order, so we\n * find an exampleHref from a common hash.\n * @param playContainer - playground container\n */\nconst findExampleHash = (playContainer: PlaygroundExampleController) =>\n exampleHrefs.find(ex => {\n return ex.hash === playContainer.getAnchorHash();\n });\n\nfor (const el of document.querySelectorAll(PlayExampleClassName.PLAY_CONTAINER)) {\n // There should be the same amount of hrefs referencing examples as example containers.\n const playContainer = new PlaygroundExampleController(el as HTMLDetailsElement);\n const exampleHref = findExampleHash(playContainer);\n if (exampleHref) {\n exampleHref.addEventListener('click', () => {\n playContainer.expand();\n });\n } else {\n console.warn('example href not found');\n }\n}\n"],
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"names": []
}
diff --git a/static/shared/shared.js b/static/shared/shared.js
index feeb20a..946da90 100644
--- a/static/shared/shared.js
+++ b/static/shared/shared.js
@@ -3,5 +3,5 @@
* Copyright 2020 The Go Authors. All rights reserved.
* Use of this source code is governed by a BSD-style
* license that can be found in the LICENSE file.
- */import"./header/header";import{ClipboardController as e}from"./clipboard/clipboard";import{ToolTipController as l}from"./tooltip/tooltip";import{SelectNavController as t}from"./outline/select";import{ModalController as r}from"./modal/modal";export{keyboard}from"./keyboard/keyboard";import*as n from"./analytics/analytics";export{n as analytics};for(const o of document.querySelectorAll(".js-clipboard"))new e(o);for(const o of document.querySelectorAll(".js-modal"))new r(o);for(const o of document.querySelectorAll(".js-tooltip"))new l(o);for(const o of document.querySelectorAll(".js-selectNav"))new t(o);
+ */import"./header/header";import{ClipboardController as e}from"./clipboard/clipboard";import{ToolTipController as l}from"./tooltip/tooltip";import{SelectNavController as t}from"./outline/select";import{ModalController as r}from"./modal/modal";import{keyboard as f}from"./keyboard/keyboard";import*as n from"./analytics/analytics";for(const o of document.querySelectorAll(".js-clipboard"))new e(o);for(const o of document.querySelectorAll(".js-modal"))new r(o);for(const o of document.querySelectorAll(".js-tooltip"))new l(o);for(const o of document.querySelectorAll(".js-selectNav"))new t(o);export{n as analytics,f as keyboard};
//# sourceMappingURL=shared.js.map
diff --git a/static/shared/shared.js.map b/static/shared/shared.js.map
index 08fda56..5d720f2 100644
--- a/static/shared/shared.js.map
+++ b/static/shared/shared.js.map
@@ -2,6 +2,6 @@
"version": 3,
"sources": ["shared.ts"],
"sourcesContent": ["/**\n * @license\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport './header/header';\nimport { ClipboardController } from './clipboard/clipboard';\nimport { ToolTipController } from './tooltip/tooltip';\nimport { SelectNavController } from './outline/select';\nimport { ModalController } from './modal/modal';\n\nexport { keyboard } from './keyboard/keyboard';\nexport * as analytics from './analytics/analytics';\n\nfor (const el of document.querySelectorAll<HTMLButtonElement>('.js-clipboard')) {\n new ClipboardController(el);\n}\n\nfor (const el of document.querySelectorAll<HTMLDialogElement>('.js-modal')) {\n new ModalController(el);\n}\n\nfor (const t of document.querySelectorAll<HTMLDetailsElement>('.js-tooltip')) {\n new ToolTipController(t);\n}\n\nfor (const el of document.querySelectorAll<HTMLSelectElement>('.js-selectNav')) {\n new SelectNavController(el);\n}\n"],
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}
diff --git a/static/shared/table/table.js b/static/shared/table/table.js
index c631ed3..e3a45fa 100644
--- a/static/shared/table/table.js
+++ b/static/shared/table/table.js
@@ -3,5 +3,5 @@
* Copyright 2020 The Go Authors. All rights reserved.
* Use of this source code is governed by a BSD-style
* license that can be found in the LICENSE file.
- */export class ExpandableRowsTableController{constructor(t,e){this.table=t;this.toggleAll=e;this.expandAllItems=()=>{this.toggles.map(t=>t.setAttribute("aria-expanded","true")),this.update()};this.collapseAllItems=()=>{this.toggles.map(t=>t.setAttribute("aria-expanded","false")),this.update()};this.update=()=>{this.updateVisibleItems(),setTimeout(()=>this.updateGlobalToggle())};this.rows=Array.from(t.querySelectorAll("[data-aria-controls]")),this.toggles=Array.from(this.table.querySelectorAll("[aria-expanded]")),this.setAttributes(),this.attachEventListeners(),this.update()}setAttributes(){for(const t of["data-aria-controls","data-aria-labelledby","data-id"])this.table.querySelectorAll(`[${t}]`).forEach(e=>{var a;e.setAttribute(t.replace("data-",""),(a=e.getAttribute(t))!=null?a:""),e.removeAttribute(t)})}attachEventListeners(){var t;this.rows.forEach(e=>{e.addEventListener("click",a=>{this.handleToggleClick(a)})}),(t=this.toggleAll)==null||t.addEventListener("click",()=>{this.expandAllItems()}),document.addEventListener("keydown",e=>{(e.ctrlKey||e.metaKey)&&e.key==="f"&&this.expandAllItems()})}handleToggleClick(t){let e=t.currentTarget;(e==null?void 0:e.hasAttribute("aria-expanded"))||(e=this.table.querySelector(`button[aria-controls="${e==null?void 0:e.getAttribute("aria-controls")}"]`));const a=(e==null?void 0:e.getAttribute("aria-expanded"))==="true";e==null||e.setAttribute("aria-expanded",a?"false":"true"),t.stopPropagation(),this.update()}updateVisibleItems(){this.rows.map(t=>{var s;const e=(t==null?void 0:t.getAttribute("aria-expanded"))==="true",a=(s=t==null?void 0:t.getAttribute("aria-controls"))==null?void 0:s.trimEnd().split(" ");a==null||a.map(i=>{const l=document.getElementById(`${i}`);e?(l==null||l.classList.add("visible"),l==null||l.classList.remove("hidden")):(l==null||l.classList.add("hidden"),l==null||l.classList.remove("visible"))})})}updateGlobalToggle(){if(!this.toggleAll)return;this.rows.some(e=>e.hasAttribute("aria-expanded"))&&(this.toggleAll.style.display="block"),this.toggles.some(e=>e.getAttribute("aria-expanded")==="false")?(this.toggleAll.innerText="Expand all",this.toggleAll.onclick=this.expandAllItems):(this.toggleAll.innerText="Collapse all",this.toggleAll.onclick=this.collapseAllItems)}}
+ */class r{constructor(t,e){this.table=t;this.toggleAll=e;this.expandAllItems=()=>{this.toggles.map(t=>t.setAttribute("aria-expanded","true")),this.update()};this.collapseAllItems=()=>{this.toggles.map(t=>t.setAttribute("aria-expanded","false")),this.update()};this.update=()=>{this.updateVisibleItems(),setTimeout(()=>this.updateGlobalToggle())};this.rows=Array.from(t.querySelectorAll("[data-aria-controls]")),this.toggles=Array.from(this.table.querySelectorAll("[aria-expanded]")),this.setAttributes(),this.attachEventListeners(),this.update()}setAttributes(){for(const t of["data-aria-controls","data-aria-labelledby","data-id"])this.table.querySelectorAll(`[${t}]`).forEach(e=>{var a;e.setAttribute(t.replace("data-",""),(a=e.getAttribute(t))!=null?a:""),e.removeAttribute(t)})}attachEventListeners(){var t;this.rows.forEach(e=>{e.addEventListener("click",a=>{this.handleToggleClick(a)})}),(t=this.toggleAll)==null||t.addEventListener("click",()=>{this.expandAllItems()}),document.addEventListener("keydown",e=>{(e.ctrlKey||e.metaKey)&&e.key==="f"&&this.expandAllItems()})}handleToggleClick(t){let e=t.currentTarget;(e==null?void 0:e.hasAttribute("aria-expanded"))||(e=this.table.querySelector(`button[aria-controls="${e==null?void 0:e.getAttribute("aria-controls")}"]`));const a=(e==null?void 0:e.getAttribute("aria-expanded"))==="true";e==null||e.setAttribute("aria-expanded",a?"false":"true"),t.stopPropagation(),this.update()}updateVisibleItems(){this.rows.map(t=>{var s;const e=(t==null?void 0:t.getAttribute("aria-expanded"))==="true",a=(s=t==null?void 0:t.getAttribute("aria-controls"))==null?void 0:s.trimEnd().split(" ");a==null||a.map(i=>{const l=document.getElementById(`${i}`);e?(l==null||l.classList.add("visible"),l==null||l.classList.remove("hidden")):(l==null||l.classList.add("hidden"),l==null||l.classList.remove("visible"))})})}updateGlobalToggle(){if(!this.toggleAll)return;this.rows.some(e=>e.hasAttribute("aria-expanded"))&&(this.toggleAll.style.display="block"),this.toggles.some(e=>e.getAttribute("aria-expanded")==="false")?(this.toggleAll.innerText="Expand all",this.toggleAll.onclick=this.expandAllItems):(this.toggleAll.innerText="Collapse all",this.toggleAll.onclick=this.collapseAllItems)}}export{r as ExpandableRowsTableController};
//# sourceMappingURL=table.js.map
diff --git a/static/shared/table/table.js.map b/static/shared/table/table.js.map
index f6ef914..f1c4fb3 100644
--- a/static/shared/table/table.js.map
+++ b/static/shared/table/table.js.map
@@ -2,6 +2,6 @@
"version": 3,
"sources": ["table.ts"],
"sourcesContent": ["/*!\n * @license\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * Controller for a table element with expandable rows. Adds event listeners to\n * a toggle within a table row that controls visiblity of additional related\n * rows in the table.\n *\n * @example\n * ```typescript\n * import {ExpandableRowsTableController} from '/static/js/table';\n *\n * const el = document .querySelector<HTMLTableElement>('.js-myTableElement')\n * new ExpandableRowsTableController(el));\n * ```\n */\nexport class ExpandableRowsTableController {\n private rows: HTMLTableRowElement[];\n private toggles: HTMLButtonElement[];\n\n /**\n * Create a table controller.\n * @param table - The table element to which the controller binds.\n */\n constructor(private table: HTMLTableElement, private toggleAll?: HTMLButtonElement | null) {\n this.rows = Array.from(table.querySelectorAll<HTMLTableRowElement>('[data-aria-controls]'));\n this.toggles = Array.from(this.table.querySelectorAll('[aria-expanded]'));\n this.setAttributes();\n this.attachEventListeners();\n this.update();\n }\n\n /**\n * setAttributes sets data-aria-* and data-id attributes to regular\n * html attributes as a workaround for limitations from safehtml.\n */\n private setAttributes() {\n for (const a of ['data-aria-controls', 'data-aria-labelledby', 'data-id']) {\n this.table.querySelectorAll(`[${a}]`).forEach(t => {\n t.setAttribute(a.replace('data-', ''), t.getAttribute(a) ?? '');\n t.removeAttribute(a);\n });\n }\n }\n\n private attachEventListeners() {\n this.rows.forEach(t => {\n t.addEventListener('click', e => {\n this.handleToggleClick(e);\n });\n });\n this.toggleAll?.addEventListener('click', () => {\n this.expandAllItems();\n });\n\n document.addEventListener('keydown', e => {\n if ((e.ctrlKey || e.metaKey) && e.key === 'f') {\n this.expandAllItems();\n }\n });\n }\n\n private handleToggleClick(e: MouseEvent) {\n let target = e.currentTarget as HTMLTableRowElement | null;\n if (!target?.hasAttribute('aria-expanded')) {\n target = this.table.querySelector(\n `button[aria-controls=\"${target?.getAttribute('aria-controls')}\"]`\n );\n }\n const isExpanded = target?.getAttribute('aria-expanded') === 'true';\n target?.setAttribute('aria-expanded', isExpanded ? 'false' : 'true');\n e.stopPropagation();\n this.update();\n }\n\n expandAllItems = (): void => {\n this.toggles.map(t => t.setAttribute('aria-expanded', 'true'));\n this.update();\n };\n\n private collapseAllItems = () => {\n this.toggles.map(t => t.setAttribute('aria-expanded', 'false'));\n this.update();\n };\n\n private update = () => {\n this.updateVisibleItems();\n setTimeout(() => this.updateGlobalToggle());\n };\n\n private updateVisibleItems() {\n this.rows.map(t => {\n const isExpanded = t?.getAttribute('aria-expanded') === 'true';\n const rowIds = t?.getAttribute('aria-controls')?.trimEnd().split(' ');\n rowIds?.map(id => {\n const target = document.getElementById(`${id}`);\n if (isExpanded) {\n target?.classList.add('visible');\n target?.classList.remove('hidden');\n } else {\n target?.classList.add('hidden');\n target?.classList.remove('visible');\n }\n });\n });\n }\n\n private updateGlobalToggle() {\n if (!this.toggleAll) return;\n if (this.rows.some(t => t.hasAttribute('aria-expanded'))) {\n this.toggleAll.style.display = 'block';\n }\n const someCollapsed = this.toggles.some(el => el.getAttribute('aria-expanded') === 'false');\n if (someCollapsed) {\n this.toggleAll.innerText = 'Expand all';\n this.toggleAll.onclick = this.expandAllItems;\n } else {\n this.toggleAll.innerText = 'Collapse all';\n this.toggleAll.onclick = this.collapseAllItems;\n }\n }\n}\n"],
- "mappings": "AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,GAoBO,0CAAoC,CAQzC,YAAoB,EAAiC,EAAsC,CAAvE,aAAiC,iBAmDrD,oBAAiB,IAAY,CAC3B,KAAK,QAAQ,IAAI,GAAK,EAAE,aAAa,gBAAiB,SACtD,KAAK,UAGC,sBAAmB,IAAM,CAC/B,KAAK,QAAQ,IAAI,GAAK,EAAE,aAAa,gBAAiB,UACtD,KAAK,UAGC,YAAS,IAAM,CACrB,KAAK,qBACL,WAAW,IAAM,KAAK,uBA9DtB,KAAK,KAAO,MAAM,KAAK,EAAM,iBAAsC,yBACnE,KAAK,QAAU,MAAM,KAAK,KAAK,MAAM,iBAAiB,oBACtD,KAAK,gBACL,KAAK,uBACL,KAAK,SAOC,eAAgB,CACtB,SAAW,KAAK,CAAC,qBAAsB,uBAAwB,WAC7D,KAAK,MAAM,iBAAiB,IAAI,MAAM,QAAQ,GAAK,CA1CzD,MA2CQ,EAAE,aAAa,EAAE,QAAQ,QAAS,IAAK,KAAE,aAAa,KAAf,OAAqB,IAC5D,EAAE,gBAAgB,KAKhB,sBAAuB,CAjDjC,MAkDI,KAAK,KAAK,QAAQ,GAAK,CACrB,EAAE,iBAAiB,QAAS,GAAK,CAC/B,KAAK,kBAAkB,OAG3B,QAAK,YAAL,QAAgB,iBAAiB,QAAS,IAAM,CAC9C,KAAK,mBAGP,SAAS,iBAAiB,UAAW,GAAK,CACxC,AAAK,GAAE,SAAW,EAAE,UAAY,EAAE,MAAQ,KACxC,KAAK,mBAKH,kBAAkB,EAAe,CACvC,GAAI,GAAS,EAAE,cACf,AAAK,kBAAQ,aAAa,mBACxB,GAAS,KAAK,MAAM,cAClB,yBAAyB,iBAAQ,aAAa,uBAGlD,KAAM,GAAa,kBAAQ,aAAa,oBAAqB,OAC7D,WAAQ,aAAa,gBAAiB,EAAa,QAAU,QAC7D,EAAE,kBACF,KAAK,SAkBC,oBAAqB,CAC3B,KAAK,KAAK,IAAI,GAAK,CA/FvB,MAgGM,KAAM,GAAa,kBAAG,aAAa,oBAAqB,OAClD,EAAS,oBAAG,aAAa,mBAAhB,cAAkC,UAAU,MAAM,KACjE,WAAQ,IAAI,GAAM,CAChB,KAAM,GAAS,SAAS,eAAe,GAAG,KAC1C,AAAI,EACF,YAAQ,UAAU,IAAI,WACtB,WAAQ,UAAU,OAAO,WAEzB,YAAQ,UAAU,IAAI,UACtB,WAAQ,UAAU,OAAO,gBAMzB,oBAAqB,CAC3B,GAAI,CAAC,KAAK,UAAW,OACrB,AAAI,KAAK,KAAK,KAAK,GAAK,EAAE,aAAa,mBACrC,MAAK,UAAU,MAAM,QAAU,SAGjC,AADsB,KAAK,QAAQ,KAAK,GAAM,EAAG,aAAa,mBAAqB,SAEjF,MAAK,UAAU,UAAY,aAC3B,KAAK,UAAU,QAAU,KAAK,gBAE9B,MAAK,UAAU,UAAY,eAC3B,KAAK,UAAU,QAAU,KAAK",
+ "mappings": "AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,GAoBO,OAAoC,CAQzC,YAAoB,EAAiC,EAAsC,CAAvE,aAAiC,iBAmDrD,oBAAiB,IAAY,CAC3B,KAAK,QAAQ,IAAI,GAAK,EAAE,aAAa,gBAAiB,SACtD,KAAK,UAGC,sBAAmB,IAAM,CAC/B,KAAK,QAAQ,IAAI,GAAK,EAAE,aAAa,gBAAiB,UACtD,KAAK,UAGC,YAAS,IAAM,CACrB,KAAK,qBACL,WAAW,IAAM,KAAK,uBA9DtB,KAAK,KAAO,MAAM,KAAK,EAAM,iBAAsC,yBACnE,KAAK,QAAU,MAAM,KAAK,KAAK,MAAM,iBAAiB,oBACtD,KAAK,gBACL,KAAK,uBACL,KAAK,SAOC,eAAgB,CACtB,SAAW,KAAK,CAAC,qBAAsB,uBAAwB,WAC7D,KAAK,MAAM,iBAAiB,IAAI,MAAM,QAAQ,GAAK,CA1CzD,MA2CQ,EAAE,aAAa,EAAE,QAAQ,QAAS,IAAK,KAAE,aAAa,KAAf,OAAqB,IAC5D,EAAE,gBAAgB,KAKhB,sBAAuB,CAjDjC,MAkDI,KAAK,KAAK,QAAQ,GAAK,CACrB,EAAE,iBAAiB,QAAS,GAAK,CAC/B,KAAK,kBAAkB,OAG3B,QAAK,YAAL,QAAgB,iBAAiB,QAAS,IAAM,CAC9C,KAAK,mBAGP,SAAS,iBAAiB,UAAW,GAAK,CACxC,AAAK,GAAE,SAAW,EAAE,UAAY,EAAE,MAAQ,KACxC,KAAK,mBAKH,kBAAkB,EAAe,CACvC,GAAI,GAAS,EAAE,cACf,AAAK,kBAAQ,aAAa,mBACxB,GAAS,KAAK,MAAM,cAClB,yBAAyB,iBAAQ,aAAa,uBAGlD,KAAM,GAAa,kBAAQ,aAAa,oBAAqB,OAC7D,WAAQ,aAAa,gBAAiB,EAAa,QAAU,QAC7D,EAAE,kBACF,KAAK,SAkBC,oBAAqB,CAC3B,KAAK,KAAK,IAAI,GAAK,CA/FvB,MAgGM,KAAM,GAAa,kBAAG,aAAa,oBAAqB,OAClD,EAAS,oBAAG,aAAa,mBAAhB,cAAkC,UAAU,MAAM,KACjE,WAAQ,IAAI,GAAM,CAChB,KAAM,GAAS,SAAS,eAAe,GAAG,KAC1C,AAAI,EACF,YAAQ,UAAU,IAAI,WACtB,WAAQ,UAAU,OAAO,WAEzB,YAAQ,UAAU,IAAI,UACtB,WAAQ,UAAU,OAAO,gBAMzB,oBAAqB,CAC3B,GAAI,CAAC,KAAK,UAAW,OACrB,AAAI,KAAK,KAAK,KAAK,GAAK,EAAE,aAAa,mBACrC,MAAK,UAAU,MAAM,QAAU,SAGjC,AADsB,KAAK,QAAQ,KAAK,GAAM,EAAG,aAAa,mBAAqB,SAEjF,MAAK,UAAU,UAAY,aAC3B,KAAK,UAAU,QAAU,KAAK,gBAE9B,MAAK,UAAU,UAAY,eAC3B,KAAK,UAAU,QAAU,KAAK",
"names": []
}
diff --git a/static/shared/tooltip/tooltip.js b/static/shared/tooltip/tooltip.js
index e17187f..de6effe 100644
--- a/static/shared/tooltip/tooltip.js
+++ b/static/shared/tooltip/tooltip.js
@@ -3,5 +3,5 @@
* Copyright 2021 The Go Authors. All rights reserved.
* Use of this source code is governed by a BSD-style
* license that can be found in the LICENSE file.
- */export class ToolTipController{constructor(i){this.el=i;document.addEventListener("click",e=>{this.el.contains(e.target)||this.el.removeAttribute("open")})}}
+ */class l{constructor(i){this.el=i;document.addEventListener("click",e=>{this.el.contains(e.target)||this.el.removeAttribute("open")})}}export{l as ToolTipController};
//# sourceMappingURL=tooltip.js.map
diff --git a/static/shared/tooltip/tooltip.js.map b/static/shared/tooltip/tooltip.js.map
index 83a6e3c..68e048e 100644
--- a/static/shared/tooltip/tooltip.js.map
+++ b/static/shared/tooltip/tooltip.js.map
@@ -2,6 +2,6 @@
"version": 3,
"sources": ["tooltip.ts"],
"sourcesContent": ["/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * ToolTipController handles closing tooltips on external clicks.\n */\nexport class ToolTipController {\n constructor(private el: HTMLDetailsElement) {\n document.addEventListener('click', e => {\n const insideTooltip = this.el.contains(e.target as Element);\n if (!insideTooltip) {\n this.el.removeAttribute('open');\n }\n });\n }\n}\n"],
- "mappings": "AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,GAUO,8BAAwB,CAC7B,YAAoB,EAAwB,CAAxB,UAClB,SAAS,iBAAiB,QAAS,GAAK,CAEtC,AAAK,AADiB,KAAK,GAAG,SAAS,EAAE,SAEvC,KAAK,GAAG,gBAAgB",
+ "mappings": "AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,GAUO,OAAwB,CAC7B,YAAoB,EAAwB,CAAxB,UAClB,SAAS,iBAAiB,QAAS,GAAK,CAEtC,AAAK,AADiB,KAAK,GAAG,SAAS,EAAE,SAEvC,KAAK,GAAG,gBAAgB",
"names": []
}
diff --git a/static/worker/worker.js b/static/worker/worker.js
index b879317..f579131 100644
--- a/static/worker/worker.js
+++ b/static/worker/worker.js
@@ -1,4 +1,4 @@
-(()=>{function n(o,s){let e=document.querySelector(`form[name="${o}" ]`);if(!e)throw Error(`Form "${o}" not found.`);e.result.value="request pending...";let t=new XMLHttpRequest;t.onreadystatechange=function(){this.readyState==4&&(this.status>=200&&this.status<300?s?location.reload():e.result.value="Success.":e.result.value="ERROR: "+this.responseText)},t.open(e.method,e.action),t.send(new FormData(e))}window.submitForm=n;})();
+function n(o,s){let e=document.querySelector(`form[name="${o}" ]`);if(!e)throw Error(`Form "${o}" not found.`);e.result.value="request pending...";let t=new XMLHttpRequest;t.onreadystatechange=function(){this.readyState==4&&(this.status>=200&&this.status<300?s?location.reload():e.result.value="Success.":e.result.value="ERROR: "+this.responseText)},t.open(e.method,e.action),t.send(new FormData(e))}window.submitForm=n;
/*!
* @license
* Copyright 2021 The Go Authors. All rights reserved.
diff --git a/static/worker/worker.js.map b/static/worker/worker.js.map
index a16cecf..9cc453f 100644
--- a/static/worker/worker.js.map
+++ b/static/worker/worker.js.map
@@ -1,7 +1,7 @@
{
"version": 3,
"sources": ["worker.ts"],
- "sourcesContent": ["/*!\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nfunction submitForm(formName: string, reload: boolean) {\n const form = document.querySelector<HTMLFormElement>(`form[name=\"${formName}\" ]`);\n if (!form) {\n throw Error(`Form \"${formName}\" not found.`);\n }\n form.result.value = 'request pending...';\n const xhr = new XMLHttpRequest();\n xhr.onreadystatechange = function () {\n if (this.readyState == 4) {\n if (this.status >= 200 && this.status < 300) {\n if (reload) {\n location.reload();\n } else {\n form.result.value = 'Success.';\n }\n } else {\n form.result.value = 'ERROR: ' + this.responseText;\n }\n }\n };\n xhr.open(form.method, form.action);\n xhr.send(new FormData(form));\n}\n\nwindow.submitForm = submitForm;\n"],
- "mappings": "MAAA,AAOA,WAAoB,EAAkB,EAAiB,CACrD,GAAM,GAAO,SAAS,cAA+B,cAAc,QACnE,GAAI,CAAC,EACH,KAAM,OAAM,SAAS,iBAEvB,EAAK,OAAO,MAAQ,qBACpB,GAAM,GAAM,GAAI,gBAChB,EAAI,mBAAqB,UAAY,CACnC,AAAI,KAAK,YAAc,GACrB,CAAI,KAAK,QAAU,KAAO,KAAK,OAAS,IACtC,AAAI,EACF,SAAS,SAET,EAAK,OAAO,MAAQ,WAGtB,EAAK,OAAO,MAAQ,UAAY,KAAK,eAI3C,EAAI,KAAK,EAAK,OAAQ,EAAK,QAC3B,EAAI,KAAK,GAAI,UAAS,IAGxB,OAAO,WAAa",
+ "sourcesContent": ["/*!\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\ndeclare global {\n interface Window {\n submitForm: typeof submitForm;\n }\n}\n\nfunction submitForm(formName: string, reload: boolean) {\n const form = document.querySelector<HTMLFormElement>(`form[name=\"${formName}\" ]`);\n if (!form) {\n throw Error(`Form \"${formName}\" not found.`);\n }\n form.result.value = 'request pending...';\n const xhr = new XMLHttpRequest();\n xhr.onreadystatechange = function () {\n if (this.readyState == 4) {\n if (this.status >= 200 && this.status < 300) {\n if (reload) {\n location.reload();\n } else {\n form.result.value = 'Success.';\n }\n } else {\n form.result.value = 'ERROR: ' + this.responseText;\n }\n }\n };\n xhr.open(form.method, form.action);\n xhr.send(new FormData(form));\n}\n\nwindow.submitForm = submitForm;\n\nexport {};\n"],
+ "mappings": "AAAA,AAYA,WAAoB,EAAkB,EAAiB,CACrD,GAAM,GAAO,SAAS,cAA+B,cAAc,QACnE,GAAI,CAAC,EACH,KAAM,OAAM,SAAS,iBAEvB,EAAK,OAAO,MAAQ,qBACpB,GAAM,GAAM,GAAI,gBAChB,EAAI,mBAAqB,UAAY,CACnC,AAAI,KAAK,YAAc,GACrB,CAAI,KAAK,QAAU,KAAO,KAAK,OAAS,IACtC,AAAI,EACF,SAAS,SAET,EAAK,OAAO,MAAQ,WAGtB,EAAK,OAAO,MAAQ,UAAY,KAAK,eAI3C,EAAI,KAAK,EAAK,OAAQ,EAAK,QAC3B,EAAI,KAAK,GAAI,UAAS,IAGxB,OAAO,WAAa",
"names": []
}
diff --git a/static/worker/worker.ts b/static/worker/worker.ts
index ef0aeaa..8d361dd 100644
--- a/static/worker/worker.ts
+++ b/static/worker/worker.ts
@@ -4,6 +4,11 @@
* Use of this source code is governed by a BSD-style
* license that can be found in the LICENSE file.
*/
+declare global {
+ interface Window {
+ submitForm: typeof submitForm;
+ }
+}
function submitForm(formName: string, reload: boolean) {
const form = document.querySelector<HTMLFormElement>(`form[name="${formName}" ]`);
@@ -30,3 +35,5 @@
}
window.submitForm = submitForm;
+
+export {};
diff --git a/tsconfig.json b/tsconfig.json
index 2775e3a..1c8bb3e 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -4,7 +4,7 @@
/* Basic Options */
// "incremental": true, /* Enable incremental compilation */
- "target": "ES2019", /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', or 'ESNEXT'. */
+ "target": "ES2019", /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', or 'ESNEXT'. */
"module": "ES2020", /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */
// "lib": [], /* Specify library files to be included in the compilation. */
// "allowJs": true, /* Allow javascript files to be compiled. */
@@ -22,7 +22,7 @@
// "noEmit": true, /* Do not emit outputs. */
// "importHelpers": true, /* Import emit helpers from 'tslib'. */
// "downlevelIteration": true, /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
- // "isolatedModules": true, /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
+ "isolatedModules": true, /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
/* Strict Type-Checking Options */
"strict": true, /* Enable all strict type-checking options. */
@@ -70,7 +70,6 @@
"static"
],
"exclude": [
- "static/legacy",
"**/*.test.ts"
]
}
