static/frontend: hide expand/collapse on smaller readmes
The readme expand/collapse toggle will only appear
after page load when the readme content is higher than
320px.
Fixes golang/go#48193
Change-Id: I300025bac382059d55c25785fbf48085039a54f7
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/378097
Trust: Jamal Carvalho <jamal@golang.org>
Run-TryBot: Jamal Carvalho <jamal@golang.org>
TryBot-Result: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jonathan Amsterdam <jba@google.com>
diff --git a/static/frontend/unit/main/_readme.css b/static/frontend/unit/main/_readme.css
index 4b3d5bf..0c3c104 100644
--- a/static/frontend/unit/main/_readme.css
+++ b/static/frontend/unit/main/_readme.css
@@ -58,10 +58,13 @@
max-height: initial;
overflow: initial;
}
+.UnitReadme--toggle .UnitReadme-expandLink {
+ display: block;
+}
.UnitReadme--expanded .UnitReadme-expandLink {
display: none;
}
-.UnitReadme--expanded .UnitReadme-collapseLink {
+.UnitReadme--expanded.UnitReadme--toggle .UnitReadme-collapseLink {
display: block;
}
diff --git a/static/frontend/unit/main/_readme.tmpl b/static/frontend/unit/main/_readme.tmpl
index a0d27cd..288c690 100644
--- a/static/frontend/unit/main/_readme.tmpl
+++ b/static/frontend/unit/main/_readme.tmpl
@@ -5,7 +5,7 @@
-->
{{define "unit-readme"}}
- <div class="UnitReadme {{if .ExpandReadme}}UnitReadme--expanded{{end}} js-readme">
+ <div class="UnitReadme UnitReadme--expanded js-readme">
<h2 class="UnitReadme-title" id="section-readme">
<img class="go-Icon" height="24" width="24" src="/static/shared/icon/chrome_reader_mode_gm_grey_24dp.svg" alt="">
README
diff --git a/static/frontend/unit/main/main.js b/static/frontend/unit/main/main.js
index a38f518..f0d396a 100644
--- a/static/frontend/unit/main/main.js
+++ b/static/frontend/unit/main/main.js
@@ -1,4 +1,4 @@
-var 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"},g=class{constructor(e){this.exampleEl=e;var 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0:t.value}).then(i=>i.text()).then(i=>{let s=e+i;this.setOutputText(`<a href="${s}">${s}</a>`),window.open(s)}).catch(i=>{this.setErrorText(i)})}handleFormatButtonClick(){var t,i;this.setOutputText("Waiting for remote server\u2026");let e=new FormData;e.append("body",(i=(t=this.inputEl)==null?void 0:t.value)!=null?i:""),fetch("/play/fmt",{method:"POST",body:e}).then(s=>s.json()).then(({Body:s,Error:r})=>{this.setOutputText(r||"Done."),s&&(this.setInputText(s),this.resize())}).catch(s=>{this.setErrorText(s)})}handleRunButtonClick(){var e;this.setOutputText("Waiting for remote server\u2026"),fetch("/play/compile",{method:"POST",body:JSON.stringify({body:(e=this.inputEl)==null?void 0:e.value,version:2})}).then(t=>t.json()).then(async({Events:t,Errors:i})=>{this.setOutputText(i||"");for(let s of t||[])this.setOutputText(s.Message),await new Promise(r=>setTimeout(r,s.Delay/1e6))}).catch(t=>{this.setErrorText(t)})}};function y(){let l=location.hash.match(/^#(example-.*)$/);if(l){let i=document.getElementById(l[1]);i&&(i.open=!0)}let e=[...document.querySelectorAll(d.PLAY_HREF)],t=i=>e.find(s=>s.hash===i.getAnchorHash());for(let i of document.querySelectorAll(d.PLAY_CONTAINER)){let s=new g(i),r=t(s);r?r.addEventListener("click",()=>{s.expand()}):console.warn("example href not found")}}var p=class{constructor(e){this.el=e;this.el.addEventListener("change",t=>{let i=t.target,s=i.value;i.value.startsWith("/")||(s="/"+s),window.location.href=s})}};function A(l){let e=document.createElement("label");e.classList.add("go-Label"),e.setAttribute("aria-label","Menu");let t=document.createElement("select");t.classList.add("go-Select","js-selectNav"),e.appendChild(t);let i=document.createElement("optgroup");i.label="Outline",t.appendChild(i);let s={},r;for(let n of l.treeitems){if(Number(n.depth)>4)continue;n.groupTreeitem?(r=s[n.groupTreeitem.label],r||(r=s[n.groupTreeitem.label]=document.createElement("optgroup"),r.label=n.groupTreeitem.label,t.appendChild(r))):r=i;let a=document.createElement("option");a.label=n.label,a.textContent=n.label,a.value=n.el.href.replace(window.location.origin,"").replace("/",""),r.appendChild(a)}return l.addObserver(n=>{var c;let a=n.el.hash,h=(c=t.querySelector(`[value$="${a}"]`))==null?void 0:c.value;h&&(t.value=h)},50),e}var f=class{constructor(e){this.el=e;this.handleResize=()=>{this.el.style.setProperty("--js-tree-height","100vh"),this.el.style.setProperty("--js-tree-height",this.el.clientHeight+"px")};this.treeitems=[],this.firstChars=[],this.firstTreeitem=null,this.lastTreeitem=null,this.observerCallbacks=[],this.init()}init(){this.handleResize(),window.addEventListener("resize",this.handleResize),this.findTreeItems(),this.updateVisibleTreeitems(),this.observeTargets(),this.firstTreeitem&&(this.firstTreeitem.el.tabIndex=0)}observeTargets(){this.addObserver(i=>{this.expandTreeitem(i),this.setSelected(i)});let e=new Map,t=new IntersectionObserver(i=>{for(let s of i)e.set(s.target.id,s.isIntersecting||s.intersectionRatio===1);for(let[s,r]of e)if(r){let n=this.treeitems.find(a=>{var h;return(h=a.el)==null?void 0:h.href.endsWith(`#${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(M(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 L(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 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r=e.nextElementSibling;for(;r;){if(r.tagName.toLowerCase()=="ul"){let x=`${(v=i==null?void 0:i.label)!=null?v:""} nav group ${this.label}`.replace(/[\W_]+/g,"_");e.setAttribute("aria-owns",x),e.setAttribute("aria-expanded","false"),r.setAttribute("role","group"),r.setAttribute("id",x),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 M(l,e){let t;return(...i)=>{let 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/*!
* @license
* Copyright 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 f966e10..6d16a90 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/playground/playground.ts", "../../../shared/outline/select.ts", "../../../shared/outline/tree.ts", "../../../shared/table/table.ts", "main.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. 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\nexport function initPlaygrounds(): void {\n const exampleHashRegex = location.hash.match(/^#(example-.*)$/);\n if (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.\n const 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 */\n const findExampleHash = (playContainer: PlaygroundExampleController) =>\n exampleHrefs.find(ex => {\n return ex.hash === playContainer.getAnchorHash();\n });\n\n for (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", "/**\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 { initPlaygrounds } from 'static/shared/playground/playground';\nimport { SelectNavController, makeSelectNav } from 'static/shared/outline/select';\nimport { TreeNavController } from 'static/shared/outline/tree';\nimport { ExpandableRowsTableController } from 'static/shared/table/table';\n\ninitPlaygrounds();\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 expandReadme();\n }\n mobileNavSelect?.addEventListener('change', e => {\n if ((e.target as HTMLSelectElement).value.startsWith('readme-')) {\n expandReadme();\n }\n });\n readmeExpand.forEach(el =>\n el.addEventListener('click', e => {\n e.preventDefault();\n expandReadme();\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 expandReadme();\n });\n readmeContent.addEventListener('click', () => {\n expandReadme();\n });\n readmeOutline.addEventListener('click', () => {\n expandReadme();\n });\n document.addEventListener('keydown', e => {\n if ((e.ctrlKey || e.metaKey) && e.key === 'f') {\n expandReadme();\n }\n });\n}\n\n/**\n * expandReadme expands the readme and adds the section-readme hash to the\n * URL so it stays expanded when navigating back from an external link.\n */\nfunction expandReadme() {\n history.replaceState(null, '', `${location.pathname}#section-readme`);\n readme?.classList.add('UnitReadme--expanded');\n}\n\n/**\n * Expand details items that are focused. 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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// 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\nexport function initPlaygrounds(): void {\n const exampleHashRegex = location.hash.match(/^#(example-.*)$/);\n if (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.\n const 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 */\n const findExampleHash = (playContainer: PlaygroundExampleController) =>\n exampleHrefs.find(ex => {\n return ex.hash === playContainer.getAnchorHash();\n });\n\n for (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", "/**\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 { initPlaygrounds } from 'static/shared/playground/playground';\nimport { SelectNavController, makeSelectNav } from 'static/shared/outline/select';\nimport { TreeNavController } from 'static/shared/outline/tree';\nimport { ExpandableRowsTableController } from 'static/shared/table/table';\n\ninitPlaygrounds();\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 (readme.clientHeight > 320) {\n readme?.classList.remove('UnitReadme--expanded');\n readme?.classList.add('UnitReadme--toggle');\n }\n if (window.location.hash.includes('readme')) {\n expandReadme();\n }\n mobileNavSelect?.addEventListener('change', e => {\n if ((e.target as HTMLSelectElement).value.startsWith('readme-')) {\n expandReadme();\n }\n });\n readmeExpand.forEach(el =>\n el.addEventListener('click', e => {\n e.preventDefault();\n expandReadme();\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 expandReadme();\n });\n readmeContent.addEventListener('click', () => {\n expandReadme();\n });\n readmeOutline.addEventListener('click', () => {\n expandReadme();\n });\n document.addEventListener('keydown', e => {\n if ((e.ctrlKey || e.metaKey) && e.key === 'f') {\n expandReadme();\n }\n });\n}\n\n/**\n * expandReadme expands the readme and adds the section-readme hash to the\n * URL so it stays expanded when navigating back from an external link.\n */\nfunction expandReadme() {\n history.replaceState(null, '', `${location.pathname}#section-readme`);\n readme?.classList.add('UnitReadme--expanded');\n}\n\n/**\n * Expand details items that are focused. This will expand\n * deprecated symbols when they are navigated to from the index\n * or a direct link.\n */\nfunction openDeprecatedSymbol() {\n if (!location.hash) return;\n const heading = document.getElementById(location.hash.slice(1));\n const grandParent = heading?.parentElement?.parentElement as HTMLDetailsElement | null;\n if (grandParent?.nodeName === 'DETAILS') {\n grandParent.open = true;\n }\n}\nopenDeprecatedSymbol();\nwindow.addEventListener('hashchange', () => openDeprecatedSymbol());\n\n/**\n * Listen for changes in the build context dropdown.\n */\ndocument.querySelectorAll('.js-buildContextSelect').forEach(el => {\n el.addEventListener('change', e => {\n window.location.search = `?GOOS=${(e.target as HTMLSelectElement).value}`;\n });\n});\n"],
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pre{font-family:monospace,monospace;font-size:1em}.Overview-readmeContent hr{box-sizing:initial;height:0;overflow:visible}.Overview-readmeContent input{font:inherit;margin:0}.Overview-readmeContent input{overflow:visible}.Overview-readmeContent [type=checkbox]{box-sizing:border-box;padding:0}.Overview-readmeContent *{box-sizing:border-box}.Overview-readmeContent input{font-family:inherit;font-size:inherit;line-height:inherit}.Overview-readmeContent a{color:var(--color-brand-primary);text-decoration:none}.Overview-readmeContent a:hover{text-decoration:underline}.Overview-readmeContent strong{font-weight:600}.Overview-readmeContent hr{height:0;margin:.9375rem 0;overflow:hidden;background:transparent;border:0;border-bottom:var(--border)}.Overview-readmeContent hr:after,.Overview-readmeContent hr:before{display:table;content:""}.Overview-readmeContent hr:after{clear:both}.Overview-readmeContent table{border-spacing:0;border-collapse:collapse}.Overview-readmeContent td,.Overview-readmeContent th{padding:0}.Overview-readmeContent details summary{cursor:pointer}.Overview-readmeContent kbd{display:inline-block;padding:.1875rem .3125rem;font:.6875rem SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;line-height:.625rem;color:#444d56;vertical-align:middle;background-color:var(--color-background-accented);border:var(--border);border-radius:.1875rem;box-shadow:inset 0 -.0625rem 0 var(--border)}.Overview-readmeContent h3,.Overview-readmeContent h4,.Overview-readmeContent h5,.Overview-readmeContent h6,.Overview-readmeContent div[aria-level="7"],.Overview-readmeContent div[aria-level="8"]{margin-top:0;margin-bottom:0}.Overview-readmeContent h3{font-size:2rem}.Overview-readmeContent h3,.Overview-readmeContent h4{font-weight:600}.Overview-readmeContent h4{font-size:1.5rem}.Overview-readmeContent h5{font-size:1.25rem}.Overview-readmeContent h5,.Overview-readmeContent h6{font-weight:600}.Overview-readmeContent h6{font-size:1rem}.Overview-readmeContent div[aria-level="7"]{font-size:.875rem}.Overview-readmeContent div[aria-level="7"],.Overview-readmeContent div[aria-level="8"]{font-weight:600}.Overview-readmeContent div[aria-level="8"]{font-size:.75rem}.Overview-readmeContent p{margin-top:0;margin-bottom:.625rem}.Overview-readmeContent blockquote{margin:0}.Overview-readmeContent ol,.Overview-readmeContent ul{padding-left:0;margin-top:0;margin-bottom:0}.Overview-readmeContent ol ol,.Overview-readmeContent ul ol{list-style-type:lower-roman}.Overview-readmeContent ol ol ol,.Overview-readmeContent ol ul ol,.Overview-readmeContent ul ol ol,.Overview-readmeContent ul ul ol{list-style-type:lower-alpha}.Overview-readmeContent dd{margin-left:0}.Overview-readmeContent code,.Overview-readmeContent pre{font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;font-size:.75rem}.Overview-readmeContent pre{margin-top:0;margin-bottom:0}.Overview-readmeContent input::-webkit-inner-spin-button,.Overview-readmeContent input::-webkit-outer-spin-button{margin:0;-webkit-appearance:none;appearance:none}.Overview-readmeContent :checked+.radio-label{position:relative;z-index:1;border-color:var(--color-brand-primary)}.Overview-readmeContent hr{border-bottom-color:var(--color-border)}.Overview-readmeContent kbd{display:inline-block;padding:.1875rem .3125rem;font:.6875rem SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;line-height:.625rem;color:#444d56;vertical-align:middle;background-color:var(--color-background-accented);border:var(--border);border-radius:.1875rem;box-shadow:inset 0 -.0625rem 0 var(--color-border)}.Overview-readmeContent a:not([href]){color:inherit;text-decoration:none}.Overview-readmeContent blockquote,.Overview-readmeContent details,.Overview-readmeContent dl,.Overview-readmeContent ol,.Overview-readmeContent p,.Overview-readmeContent pre,.Overview-readmeContent table,.Overview-readmeContent ul{margin-top:0;margin-bottom:1rem}.Overview-readmeContent hr{height:.25em;padding:0;margin:1.5rem 0;background-color:var(--color-border);border:0}.Overview-readmeContent blockquote{padding:0 1em;color:var(--color-text-subtle);border-left:.25em solid var(--color-border)}.Overview-readmeContent blockquote>:first-child{margin-top:0}.Overview-readmeContent blockquote>:last-child{margin-bottom:0}.Overview-readmeContent h3,.Overview-readmeContent h4,.Overview-readmeContent h5,.Overview-readmeContent h6,.Overview-readmeContent div[aria-level="7"],.Overview-readmeContent div[aria-level="8"]{margin-top:1.5rem;margin-bottom:1rem;font-weight:600;line-height:1.25}.Overview-readmeContent h3{font-size:2em}.Overview-readmeContent h3,.Overview-readmeContent h4{padding-bottom:.3em;border-bottom:var(--border)}.Overview-readmeContent h4{font-size:1.5em}.Overview-readmeContent h5{font-size:1.25em}.Overview-readmeContent h6{font-size:1em}.Overview-readmeContent div[aria-level="7"]{font-size:.875em}.Overview-readmeContent div[aria-level="8"]{font-size:.85em;color:var(--color-text-subtle)}.Overview-readmeContent ol,.Overview-readmeContent ul{padding-left:2em}.Overview-readmeContent ol ol,.Overview-readmeContent ol ul,.Overview-readmeContent ul ol,.Overview-readmeContent ul ul{margin-top:0;margin-bottom:0}.Overview-readmeContent li{word-wrap:break-all}.Overview-readmeContent li>p{margin-top:1rem}.Overview-readmeContent li+li{margin-top:.25em}.Overview-readmeContent dl{padding:0}.Overview-readmeContent dl dt{padding:0;margin-top:1rem;font-size:1em;font-style:italic;font-weight:600}.Overview-readmeContent dl dd{padding:0 1rem;margin-bottom:1rem}.Overview-readmeContent table{display:block;width:100%;overflow:auto}.Overview-readmeContent table th{font-weight:600}.Overview-readmeContent table td,.Overview-readmeContent table th{padding:.375rem .8125rem;border:var(--border)}.Overview-readmeContent table tr{background-color:var(--color-background);border-top:var(--border)}.Overview-readmeContent table tr:nth-child(2n){background-color:var(--color-background-accented)}.Overview-readmeContent img{max-width:100%;box-sizing:initial;background-color:var(--color-background)}.Overview-readmeContent img[align=right]{padding-left:1.25rem}.Overview-readmeContent img[align=left]{padding-right:1.25rem}.Overview-readmeContent code{padding:.2em .4em;margin:0;font-size:85%;background-color:var(--color-background-accented);border-radius:.1875rem}.Overview-readmeContent pre{word-wrap:normal}.Overview-readmeContent pre>code{padding:0;margin:0;font-size:100%;word-break:normal;white-space:pre;background:transparent;border:0}.Overview-readmeContent pre{padding:1rem;overflow:auto;font-size:85%;line-height:1.45;background-color:var(--color-background-accented);border-radius:.1875rem}.Overview-readmeContent pre code{display:inline;max-width:auto;padding:0;margin:0;overflow:visible;line-height:inherit;word-wrap:normal;background-color:initial;border:0}.UnitReadme{margin-bottom:2rem}.UnitReadme ul,.UnitReadme ol{list-style:circle}.UnitReadme h2 a.UnitReadme-idLink,.UnitReadme summary a{opacity:0}.UnitReadme h2:hover a,.UnitReadme summary:focus a{opacity:1}.UnitReadme-title{border-bottom:var(--border);font-size:1.375rem;padding-bottom:1rem}.UnitReadme-title img{margin:auto 1rem auto 0}.UnitReadme-content{-webkit-mask-image:linear-gradient(to bottom,black 75%,transparent 100%);mask-image:linear-gradient(to bottom,black 75%,transparent 100%);max-height:20rem;overflow:hidden;position:relative}.UnitReadme-content ul{line-height:1.5rem}.UnitReadme-expandLink{background:none;border:none;color:var(--color-brand-primary);cursor:pointer;padding:0}.UnitReadme-collapseLink{background:none;border:none;color:var(--color-brand-primary);cursor:pointer;display:none;padding:0}.UnitReadme--expanded .UnitReadme-content{-webkit-mask-image:none;mask-image:none;max-height:initial;overflow:initial}.UnitReadme--toggle .UnitReadme-expandLink{display:block}.UnitReadme--expanded .UnitReadme-expandLink{display:none}.UnitReadme--expanded.UnitReadme--toggle .UnitReadme-collapseLink{display:block}.Overview-readmeContent{overflow-wrap:break-word}.UnitDetails{column-gap:2rem;display:grid;grid-template-columns:minmax(0,auto);margin:auto;min-height:32rem}@media only screen and (min-width: 64rem){.UnitDetails{grid-template-columns:15.5rem minmax(30.5rem,43.125rem) minmax(10rem,15.5rem)}}@media only screen and (min-width: 80rem){.UnitDetails{grid-template-columns:15.5rem minmax(43.125rem,60rem) 15.5rem;justify-content:center}}.UnitDetails :target{scroll-margin-top:calc(var(--js-sticky-header-height, 3.5rem) * 2.15)}@media only screen and (min-width: 64rem){.UnitDetails :target{scroll-margin-top:calc(var(--js-sticky-header-height, 3.5rem) * 1.25)}}.UnitDetails :target:not(details,h2){background-color:var(--color-background-highlighted);padding:.25rem}.UnitDetails-meta{order:-1}@media only screen and (min-width: 64rem){.UnitDetails-meta{display:block;margin-top:2rem;order:initial}}.UnitDetails-contentEmpty{align-items:center;background-color:var(--color-background-accented);color:var(--color-text-subtle);display:flex;flex-direction:column;height:15rem;padding-top:1rem;text-align:center}.UnitDetails-contentEmpty img{height:7.8125rem;width:auto}
/*!
* Copyright 2020 The Go Authors. All rights reserved.
* Use of this source code is governed by a BSD-style
diff --git a/static/frontend/unit/main/main.min.css.map b/static/frontend/unit/main/main.min.css.map
index 4eb7141..cedd269 100644
--- a/static/frontend/unit/main/main.min.css.map
+++ b/static/frontend/unit/main/main.min.css.map
@@ -1,7 +1,7 @@
{
"version": 3,
"sources": ["_build-context.css", "_directories.css", "_doc.css", "_files.css", "_meta.css", "_outline.css", "_readme_gen.css", "_readme.css", "main.css"],
- "sourcesContent": ["/*!\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.UnitBuildContext-titleContext label,\n.UnitBuildContext-singleContext {\n color: var(--color-text-subtle);\n font-size: 0.875rem;\n}\n.UnitBuildContext-singleContext {\n padding: 0.35rem 0;\n}\n.UnitBuildContext-titleContext select {\n border-color: var(--color-border);\n color: var(--color-text-subtle);\n margin-left: 0.25rem;\n min-width: 6rem;\n}\n.UnitBuildContext-titleContext option {\n color: var(--color-text-subtle);\n}\n.UnitBuildContext-link {\n display: none;\n}\n@media only screen and (min-width: 30rem) {\n .UnitBuildContext-link {\n display: initial;\n }\n}\n\n.UnitDoc .UnitBuildContext-titleContext {\n position: relative;\n}\n.UnitDoc .UnitBuildContext-titleContext label,\n.UnitDoc .UnitBuildContext-singleContext {\n bottom: 0.875rem;\n position: absolute;\n right: 0;\n}\n", "/*!\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.UnitDirectories {\n margin-bottom: 2rem;\n}\n.UnitDirectories h2 a.UnitDirectories-idLink,\n.UnitDirectories summary a {\n opacity: 0;\n}\n.UnitDirectories h2:hover a,\n.UnitDirectories summary:focus a {\n opacity: 1;\n}\n.UnitDirectories-title {\n border-bottom: var(--border);\n font-size: 1.375rem;\n margin: 0.5rem 0 0 0;\n padding-bottom: 1rem;\n}\n.UnitDirectories-title img {\n margin: auto 1rem auto 0;\n}\n.UnitDirectories-table {\n border-collapse: collapse;\n height: 0;\n table-layout: auto;\n width: 100%;\n}\n.UnitDirectories-table--tree {\n margin-top: -2rem;\n}\n.UnitDirectories-tableHeader {\n background-color: var(--color-background-accented);\n}\n.UnitDirectories-tableHeader--tree {\n visibility: hidden;\n}\n.UnitDirectories td {\n border-bottom: var(--border);\n max-width: 32rem;\n min-width: 12rem;\n padding: 0.25rem 1rem;\n vertical-align: middle;\n word-break: break-word;\n}\n.UnitDirectories th {\n padding: 0.5rem 1rem;\n text-align: left;\n}\n.UnitDirectories tr.hidden {\n display: none;\n}\n.UnitDirectories tr[aria-controls] {\n cursor: pointer;\n}\n.UnitDirectories tr[aria-controls]:hover {\n background-color: var(--color-background-accented);\n}\n.UnitDirectories th.UnitDirectories-toggleHead {\n font-size: 0;\n max-width: 0.625rem;\n padding: 0;\n width: 0.625rem;\n}\n.UnitDirectories td.UnitDirectories-toggleCell,\nth.UnitDirectories-toggleCell {\n background-color: var(--background);\n border: var(--white);\n max-width: 0.625rem;\n padding: 0;\n width: 0.625rem;\n}\n.UnitDirectories-toggleButton {\n font-size: 1.25rem;\n left: -0.75rem;\n margin: 0 0 -1rem -0.875rem;\n padding: 0;\n position: absolute;\n vertical-align: top;\n}\n.UnitDirectories-subSpacer {\n border-right: var(--border);\n display: inline;\n margin-right: 0.875rem;\n width: 0.0625rem;\n}\n.UnitDirectories-toggleButton[aria-expanded='true'] img {\n transform: rotate(90deg);\n}\n.UnitDirectories-pathCell {\n align-items: flex-start;\n display: flex;\n flex-direction: column;\n line-height: 1.75rem;\n word-break: break-all;\n}\n.UnitDirectories-pathCell > div {\n position: relative;\n}\n.UnitDirectories-subdirectory {\n border-left: var(--border);\n display: flex;\n flex-direction: column;\n margin-left: 0.375rem;\n padding: 0.5rem 1rem;\n}\n.UnitDirectories-mobileSynopsis {\n display: none;\n line-height: 1.25rem;\n margin-top: 0.25rem;\n word-break: keep-all;\n}\n@media only screen and (max-width: 52rem) {\n .UnitDirectories-mobileSynopsis {\n display: initial;\n }\n .UnitDirectories-table th.UnitDirectories-desktopSynopsis,\n .UnitDirectories-table td.UnitDirectories-desktopSynopsis {\n display: none;\n }\n}\n.UnitDirectories-expandButton {\n position: relative;\n}\n.UnitDirectories-expandButton button {\n background-color: transparent;\n border: none;\n bottom: 1rem;\n color: var(--color-brand-primary);\n cursor: pointer;\n display: none;\n font-size: 0.875rem;\n position: absolute;\n right: 0;\n text-decoration: none;\n}\n.UnitDirectories-badge {\n border: 0.0625rem solid var(--color-text-subtle);\n border-radius: 0.125rem;\n font-size: 0.6875rem;\n font-weight: 500;\n line-height: 1rem;\n margin-left: 0.5rem;\n margin-top: 0.125rem;\n padding: 0 0.35rem;\n text-align: center;\n}\n", "/*!\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/* stylelint-disable no-descending-specificity */\n.UnitDoc {\n margin-bottom: 2rem;\n word-break: break-word;\n}\n.UnitDoc h2 a.UnitDoc-idLink,\n.UnitDoc summary a {\n opacity: 0;\n}\n.UnitDoc h2:hover a,\n.UnitDoc summary:focus a {\n opacity: 1;\n}\n.UnitDoc-title {\n border-bottom: var(--border);\n padding-bottom: 1rem;\n}\n.UnitDoc-title img {\n margin: auto 1rem auto 0;\n}\n.UnitDoc-emptySection {\n background-color: var(--color-background-accented);\n color: var(--gray-2);\n height: 12.25rem;\n margin-top: 1.5rem;\n text-align: center;\n}\n.UnitDoc-emptySection img {\n height: 7.8125rem;\n width: auto;\n}\n.UnitDoc-emptySection p {\n margin: 1rem auto;\n}\n.UnitDoc .Documentation h4 {\n margin-top: 1.5rem;\n}\n.Documentation {\n display: block;\n}\n.Documentation p {\n margin: 1rem 0;\n}\n.Documentation h2,\n.Documentation h3 {\n margin-top: 1.5rem;\n}\n.Documentation a {\n text-decoration: none;\n}\n.Documentation a:hover {\n text-decoration: underline;\n}\n.Documentation h2 a,\n.Documentation h3 a,\n.Documentation h4 a.Documentation-idLink,\n.Documentation summary a {\n opacity: 0;\n}\n.Documentation a:focus {\n opacity: 1;\n}\n.Documentation h3 a.Documentation-source {\n opacity: 1;\n}\n.Documentation h2:hover a,\n.Documentation h3:hover a,\n.Documentation h4:hover a,\n.Documentation summary:hover a,\n.Documentation summary:focus a {\n opacity: 1;\n}\n.Documentation ul {\n line-height: 1.5rem;\n list-style: none;\n padding-left: 0;\n}\n.Documentation ul ul {\n padding-left: 2em;\n}\n\n.Documentation pre + pre {\n margin-top: 0.625rem;\n}\n\n.Documentation .Documentation-declarationLink + pre {\n border-radius: 0 0 0.3em 0.3em;\n border-top: var(--border);\n margin-top: 0;\n}\n.Documentation pre .comment {\n color: var(--color-code-comment);\n}\n\n.Documentation-toc,\n.Documentation-overview,\n.Documentation-index,\n.Documentation-examples {\n padding-bottom: 0;\n}\n.Documentation-empty {\n color: var(--color-text-subtle);\n margin-top: -0.5rem;\n}\n@media only screen and (min-width: 64rem) {\n .Documentation-toc {\n margin-left: 2rem;\n white-space: nowrap;\n }\n .Documentation-toc-columns {\n columns: 2;\n }\n}\n.Documentation-toc:empty {\n display: none;\n}\n.Documentation-tocItem {\n overflow: hidden;\n text-overflow: ellipsis;\n}\n\n.Documentation-tocItem--constants,\n.Documentation-tocItem--funcsAndTypes,\n.Documentation-tocItem--functions,\n.Documentation-tocItem--types,\n.Documentation-tocItem--variables,\n.Documentation-tocItem--notes {\n display: none;\n}\n\n.Documentation-overviewHeader,\n.Documentation-indexHeader,\n.Documentation-constantsHeader,\n.Documentation-variablesHeader,\n.Documentation-examplesHeader,\n.Documentation-filesHeader,\n.Documentation-functionHeader,\n.Documentation-typeHeader,\n.Documentation-typeMethodHeader,\n.Documentation-typeFuncHeader {\n margin-bottom: 0.5rem;\n}\n\n.Documentation-function h4,\n.Documentation-type h4,\n.Documentation-typeFunc h4,\n.Documentation-typeMethod h4 {\n align-items: baseline;\n display: flex;\n justify-content: space-between;\n}\n.Documentation-sinceVersion {\n color: var(--color-text-subtle);\n font-size: 0.9375rem;\n font-weight: 400;\n}\n\n.Documentation-constants br:last-of-type,\n.Documentation-variables br:last-of-type {\n display: none;\n}\n\n.Documentation-build {\n color: var(--color-text-subtle);\n padding-top: 1.5rem;\n text-align: right;\n}\n.Documentation-declaration pre {\n scroll-padding-top: calc(var(--js-sticky-header-height, 3.5rem) + 3.75rem);\n}\n@media only screen and (min-width: 64rem) {\n .Documentation-declaration pre {\n scroll-padding-top: calc(var(--js-sticky-header-height, 3.5rem) + 0.75rem);\n }\n}\n.Documentation-declaration + .Documentation-declaration {\n margin-top: 0.625rem;\n}\n.Documentation-declarationLink {\n background-color: var(--color-background-accented);\n border: var(--border);\n border-bottom: none;\n border-radius: 0.3em 0.3em 0 0;\n display: block;\n font-size: 0.75rem;\n line-height: 0.5rem;\n padding: 0.375rem;\n text-align: right;\n}\n.Documentation-exampleButtonsContainer {\n align-items: center;\n display: flex;\n justify-content: flex-end;\n margin-top: 0.5rem;\n}\n.Documentation-examplePlayButton {\n background-color: var(--white);\n border: 0.15rem solid var(--turq-med);\n color: var(--turq-med);\n cursor: pointer;\n flex-shrink: 0;\n height: 2.5rem;\n width: 4.125rem;\n}\n.Documentation-exampleRunButton,\n.Documentation-exampleShareButton,\n.Documentation-exampleFormatButton {\n border: 0.0625rem solid var(--turq-dark);\n border-radius: 0.25rem;\n cursor: pointer;\n height: 2rem;\n margin-left: 0.5rem;\n padding: 0 1rem;\n}\n.Documentation-exampleRunButton {\n background-color: var(--turq-dark);\n color: var(--white);\n}\n.Documentation-exampleShareButton,\n.Documentation-exampleFormatButton {\n background-color: var(--white);\n color: var(--turq-dark);\n}\n.Documentation-exampleDetails {\n margin-top: 1rem;\n}\n.Documentation-exampleDetailsBody pre {\n border-radius: 0 0 0.3rem 0.3rem;\n margin-bottom: 1rem;\n margin-top: -0.25rem;\n}\n.Documentation-exampleDetailsBody textarea {\n height: 100%;\n outline: none;\n overflow-x: auto;\n resize: none;\n white-space: pre;\n width: 100%;\n}\n\n/**\n * We add another selector here to these two classes to increase CSS specificity,\n * the selector .Documentation pre + pre overrides .Documentation-exampleCode\n * and .Documentation-exampleOutput by itself and would replace the styles.\n */\n.Documentation-exampleDetailsBody .Documentation-exampleCode {\n border-bottom-left-radius: 0;\n border-bottom-right-radius: 0;\n margin: 0;\n}\n.Documentation-exampleDetailsBody .Documentation-exampleOutput {\n border-top-left-radius: 0;\n border-top-right-radius: 0;\n margin: 0 0 0.5rem;\n}\n.Documentation-exampleDetailsHeader {\n color: var(--color-brand-primary);\n cursor: pointer;\n margin-bottom: 2rem;\n outline: none;\n text-decoration: none;\n}\n.Documentation-exampleOutputLabel {\n color: var(--color-text-subtle);\n}\n.Documentation-exampleError {\n color: var(--pink);\n margin-right: 0.4rem;\n padding-right: 0.5rem;\n}\n\n/* See https://golang.org/issue/43368 for context. */\n.Documentation-function pre,\n.Documentation-typeFunc pre,\n.Documentation-typeMethod pre {\n white-space: pre-wrap;\n word-break: break-all;\n word-wrap: break-word;\n}\n\n.Documentation-indexDeprecated {\n margin-left: 0.5rem;\n}\n.Documentation-deprecatedBody {\n color: var(--color-text-subtle);\n font-size: 0.87rem;\n font-weight: 400;\n margin-left: 0.25rem;\n margin-right: 0.5rem;\n}\n.Documentation-deprecatedTag {\n background-color: var(--color-border);\n border-radius: 0.125rem;\n color: var(--color-text-inverted);\n font-size: 0.75rem;\n font-weight: normal;\n line-height: 1.375;\n padding: 0.125rem 0.25rem;\n text-transform: uppercase;\n vertical-align: middle;\n}\n.Documentation-deprecatedTitle {\n align-items: center;\n display: flex;\n gap: 0.5rem;\n}\n.Documentation-deprecatedDetails {\n color: var(--color-text-subtle);\n}\n.Documentation-deprecatedDetails a {\n color: var(--color-text-subtle);\n}\n.Documentation-deprecatedDetails[open] {\n color: var(--color-text);\n}\n.Documentation-deprecatedDetails[open] a {\n color: var(--color-brand-primary);\n}\n.Documentation-deprecatedDetails .Documentation-deprecatedBody::after {\n color: var(--color-brand-primary);\n content: 'Show';\n}\n.Documentation-deprecatedDetails[open] .Documentation-deprecatedBody::after {\n color: var(--color-brand-primary);\n content: 'Hide';\n}\n.Documentation-deprecatedDetails > summary {\n list-style: none;\n opacity: 1;\n}\n.Documentation-deprecatedDetails .Documentation-source {\n opacity: 1;\n}\n.Documentation-deprecatedItemBody {\n padding: 1rem 1rem 0.5rem 1rem;\n}\n.Documentation-deprecatedMessage {\n align-items: center;\n display: flex;\n gap: 0.5rem;\n margin-bottom: 1rem;\n}\n", "/*!\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.UnitFiles {\n margin-bottom: 2rem;\n}\n.UnitFiles-titleLink {\n position: relative;\n}\n.UnitFiles-titleLink a {\n bottom: 1rem;\n font-size: 0.875rem;\n position: absolute;\n right: 0;\n}\n.UnitFiles-titleLink a::after {\n background-image: url(/static/shared/icon/launch_gm_grey_24dp.svg);\n background-repeat: no-repeat;\n background-size: 0.875rem 1.25rem;\n content: '';\n display: inline-block;\n height: 1rem;\n left: 0.3125rem;\n position: relative;\n top: 0.125rem;\n width: 1rem;\n}\n.UnitFiles h2 a.UnitFiles-idLink,\n.UnitFiles summary a {\n opacity: 0;\n}\n.UnitFiles h2:hover a,\n.UnitFiles summary:focus a {\n opacity: 1;\n}\n.UnitFiles-title {\n border-bottom: var(--border);\n font-size: 1.375rem;\n margin: 0.5rem 0 0 0;\n padding-bottom: 1rem;\n}\n.UnitFiles-title img {\n margin: auto 1rem auto 0;\n}\n.UnitFiles-fileList {\n column-count: 5;\n column-width: 12.5rem;\n line-height: 1.5rem;\n list-style: none;\n margin-top: 1rem;\n padding-left: 0;\n word-break: break-all;\n}\n", "/*!\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.UnitMeta {\n display: grid;\n gap: 1rem 2rem;\n grid-template-columns: max-content auto;\n white-space: nowrap;\n}\n.UnitMeta-details,\n.UnitMeta-links {\n display: flex;\n flex-flow: wrap;\n flex-direction: row;\n gap: 1rem 2rem;\n}\n.UnitMeta-repo {\n align-items: center;\n display: flex;\n}\n.UnitMeta-repo a {\n overflow: hidden;\n text-overflow: ellipsis;\n}\n@media (min-width: 50rem) {\n .UnitMeta {\n grid-template-columns: max-content auto;\n }\n .UnitMeta-details,\n .UnitMeta-links {\n flex-direction: row;\n }\n}\n@media (min-width: 112rem) {\n :root[data-layout='responsive'] .UnitMeta {\n grid-template-columns: 100%;\n }\n :root[data-layout='responsive'] .UnitMeta-details,\n :root[data-layout='responsive'] .UnitMeta-links {\n flex-direction: column;\n white-space: nowrap;\n }\n}\n.UnitMeta-detailsLearn {\n width: 100%;\n}\n@media (min-width: 50rem) {\n .UnitMeta-detailsLearn {\n width: initial;\n }\n}\n", "/*!\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.UnitOutline-jumpTo {\n display: flex;\n margin-bottom: 1rem;\n}\n.UnitOutline-jumpTo button {\n align-items: center;\n background-color: var(--color-background);\n border: var(--border);\n border-radius: 0.25rem;\n color: var(--color-text-subtle);\n cursor: pointer;\n height: 2rem;\n padding-left: 1rem;\n text-align: left;\n width: 100%;\n}\n.UnitOutline-jumpTo button:hover:not([disabled]) {\n border-color: var(--color-border);\n}\n.UnitOutline-jumpToInput:disabled {\n background-color: var(--gray-9);\n}\n", "/*!\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/* ---------- */\n/*\n/* The CSS classes below are generated using devtools/cmd/css/main.go\n/* If the generated CSS already exists, the file is overwritten\n/*\n/* ---------- */\n\n.Overview-readmeContent details {\n display: block;\n}\n.Overview-readmeContent summary {\n display: list-item;\n}\n.Overview-readmeContent a {\n background-color: initial;\n}\n.Overview-readmeContent a:active,\n.Overview-readmeContent a:hover {\n outline-width: 0;\n}\n.Overview-readmeContent strong {\n font-weight: inherit;\n font-weight: bolder;\n}\n.Overview-readmeContent h3 {\n font-size: 2em;\n margin: 0.67em 0;\n}\n.Overview-readmeContent img {\n border-style: none;\n}\n.Overview-readmeContent code,\n.Overview-readmeContent kbd,\n.Overview-readmeContent pre {\n font-family: monospace, monospace;\n font-size: 1em;\n}\n.Overview-readmeContent hr {\n box-sizing: initial;\n height: 0;\n overflow: visible;\n}\n.Overview-readmeContent input {\n font: inherit;\n margin: 0;\n}\n.Overview-readmeContent input {\n overflow: visible;\n}\n.Overview-readmeContent [type='checkbox'] {\n box-sizing: border-box;\n padding: 0;\n}\n.Overview-readmeContent * {\n box-sizing: border-box;\n}\n.Overview-readmeContent input {\n font-family: inherit;\n font-size: inherit;\n line-height: inherit;\n}\n.Overview-readmeContent a {\n color: var(--color-brand-primary);\n text-decoration: none;\n}\n.Overview-readmeContent a:hover {\n text-decoration: underline;\n}\n.Overview-readmeContent strong {\n font-weight: 600;\n}\n.Overview-readmeContent hr {\n height: 0;\n margin: 0.9375rem 0;\n overflow: hidden;\n background: transparent;\n border: 0;\n border-bottom: var(--border);\n}\n.Overview-readmeContent hr:after,\n.Overview-readmeContent hr:before {\n display: table;\n content: '';\n}\n.Overview-readmeContent hr:after {\n clear: both;\n}\n.Overview-readmeContent table {\n border-spacing: 0;\n border-collapse: collapse;\n}\n.Overview-readmeContent td,\n.Overview-readmeContent th {\n padding: 0;\n}\n.Overview-readmeContent details summary {\n cursor: pointer;\n}\n.Overview-readmeContent kbd {\n display: inline-block;\n padding: 0.1875rem 0.3125rem;\n font: 0.6875rem SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace;\n line-height: 0.625rem;\n color: #444d56;\n vertical-align: middle;\n background-color: var(--color-background-accented);\n border: var(--border);\n border-radius: 0.1875rem;\n box-shadow: inset 0 -0.0625rem 0 var(--border);\n}\n.Overview-readmeContent h3,\n.Overview-readmeContent h4,\n.Overview-readmeContent h5,\n.Overview-readmeContent h6,\n.Overview-readmeContent div[aria-level='7'],\n.Overview-readmeContent div[aria-level='8'] {\n margin-top: 0;\n margin-bottom: 0;\n}\n.Overview-readmeContent h3 {\n font-size: 2rem;\n}\n.Overview-readmeContent h3,\n.Overview-readmeContent h4 {\n font-weight: 600;\n}\n.Overview-readmeContent h4 {\n font-size: 1.5rem;\n}\n.Overview-readmeContent h5 {\n font-size: 1.25rem;\n}\n.Overview-readmeContent h5,\n.Overview-readmeContent h6 {\n font-weight: 600;\n}\n.Overview-readmeContent h6 {\n font-size: 1rem;\n}\n.Overview-readmeContent div[aria-level='7'] {\n font-size: 0.875rem;\n}\n.Overview-readmeContent div[aria-level='7'],\n.Overview-readmeContent div[aria-level='8'] {\n font-weight: 600;\n}\n.Overview-readmeContent div[aria-level='8'] {\n font-size: 0.75rem;\n}\n.Overview-readmeContent p {\n margin-top: 0;\n margin-bottom: 0.625rem;\n}\n.Overview-readmeContent blockquote {\n margin: 0;\n}\n.Overview-readmeContent ol,\n.Overview-readmeContent ul {\n padding-left: 0;\n margin-top: 0;\n margin-bottom: 0;\n}\n.Overview-readmeContent ol ol,\n.Overview-readmeContent ul ol {\n list-style-type: lower-roman;\n}\n.Overview-readmeContent ol ol ol,\n.Overview-readmeContent ol ul ol,\n.Overview-readmeContent ul ol ol,\n.Overview-readmeContent ul ul ol {\n list-style-type: lower-alpha;\n}\n.Overview-readmeContent dd {\n margin-left: 0;\n}\n.Overview-readmeContent code,\n.Overview-readmeContent pre {\n font-family: SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace;\n font-size: 0.75rem;\n}\n.Overview-readmeContent pre {\n margin-top: 0;\n margin-bottom: 0;\n}\n.Overview-readmeContent input::-webkit-inner-spin-button,\n.Overview-readmeContent input::-webkit-outer-spin-button {\n margin: 0;\n -webkit-appearance: none;\n appearance: none;\n}\n.Overview-readmeContent :checked + .radio-label {\n position: relative;\n z-index: 1;\n border-color: var(--color-brand-primary);\n}\n.Overview-readmeContent hr {\n border-bottom-color: var(--color-border);\n}\n.Overview-readmeContent kbd {\n display: inline-block;\n padding: 0.1875rem 0.3125rem;\n font: 0.6875rem SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace;\n line-height: 0.625rem;\n color: #444d56;\n vertical-align: middle;\n background-color: var(--color-background-accented);\n border: var(--border);\n border-radius: 0.1875rem;\n box-shadow: inset 0 -0.0625rem 0 var(--color-border);\n}\n.Overview-readmeContent a:not([href]) {\n color: inherit;\n text-decoration: none;\n}\n.Overview-readmeContent blockquote,\n.Overview-readmeContent details,\n.Overview-readmeContent dl,\n.Overview-readmeContent ol,\n.Overview-readmeContent p,\n.Overview-readmeContent pre,\n.Overview-readmeContent table,\n.Overview-readmeContent ul {\n margin-top: 0;\n margin-bottom: 1rem;\n}\n.Overview-readmeContent hr {\n height: 0.25em;\n padding: 0;\n margin: 1.5rem 0;\n background-color: var(--color-border);\n border: 0;\n}\n.Overview-readmeContent blockquote {\n padding: 0 1em;\n color: var(--color-text-subtle);\n border-left: 0.25em solid var(--color-border);\n}\n.Overview-readmeContent blockquote > :first-child {\n margin-top: 0;\n}\n.Overview-readmeContent blockquote > :last-child {\n margin-bottom: 0;\n}\n.Overview-readmeContent h3,\n.Overview-readmeContent h4,\n.Overview-readmeContent h5,\n.Overview-readmeContent h6,\n.Overview-readmeContent div[aria-level='7'],\n.Overview-readmeContent div[aria-level='8'] {\n margin-top: 1.5rem;\n margin-bottom: 1rem;\n font-weight: 600;\n line-height: 1.25;\n}\n.Overview-readmeContent h3 {\n font-size: 2em;\n}\n.Overview-readmeContent h3,\n.Overview-readmeContent h4 {\n padding-bottom: 0.3em;\n border-bottom: var(--border);\n}\n.Overview-readmeContent h4 {\n font-size: 1.5em;\n}\n.Overview-readmeContent h5 {\n font-size: 1.25em;\n}\n.Overview-readmeContent h6 {\n font-size: 1em;\n}\n.Overview-readmeContent div[aria-level='7'] {\n font-size: 0.875em;\n}\n.Overview-readmeContent div[aria-level='8'] {\n font-size: 0.85em;\n color: var(--color-text-subtle);\n}\n.Overview-readmeContent ol,\n.Overview-readmeContent ul {\n padding-left: 2em;\n}\n.Overview-readmeContent ol ol,\n.Overview-readmeContent ol ul,\n.Overview-readmeContent ul ol,\n.Overview-readmeContent ul ul {\n margin-top: 0;\n margin-bottom: 0;\n}\n.Overview-readmeContent li {\n word-wrap: break-all;\n}\n.Overview-readmeContent li > p {\n margin-top: 1rem;\n}\n.Overview-readmeContent li + li {\n margin-top: 0.25em;\n}\n.Overview-readmeContent dl {\n padding: 0;\n}\n.Overview-readmeContent dl dt {\n padding: 0;\n margin-top: 1rem;\n font-size: 1em;\n font-style: italic;\n font-weight: 600;\n}\n.Overview-readmeContent dl dd {\n padding: 0 1rem;\n margin-bottom: 1rem;\n}\n.Overview-readmeContent table {\n display: block;\n width: 100%;\n overflow: auto;\n}\n.Overview-readmeContent table th {\n font-weight: 600;\n}\n.Overview-readmeContent table td,\n.Overview-readmeContent table th {\n padding: 0.375rem 0.8125rem;\n border: var(--border);\n}\n.Overview-readmeContent table tr {\n background-color: var(--color-background);\n border-top: var(--border);\n}\n.Overview-readmeContent table tr:nth-child(2n) {\n background-color: var(--color-background-accented);\n}\n.Overview-readmeContent img {\n max-width: 100%;\n box-sizing: initial;\n background-color: var(--color-background);\n}\n.Overview-readmeContent img[align='right'] {\n padding-left: 1.25rem;\n}\n.Overview-readmeContent img[align='left'] {\n padding-right: 1.25rem;\n}\n.Overview-readmeContent code {\n padding: 0.2em 0.4em;\n margin: 0;\n font-size: 85%;\n background-color: var(--color-background-accented);\n border-radius: 0.1875rem;\n}\n.Overview-readmeContent pre {\n word-wrap: normal;\n}\n.Overview-readmeContent pre > code {\n padding: 0;\n margin: 0;\n font-size: 100%;\n word-break: normal;\n white-space: pre;\n background: transparent;\n border: 0;\n}\n.Overview-readmeContent pre {\n padding: 1rem;\n overflow: auto;\n font-size: 85%;\n line-height: 1.45;\n background-color: var(--color-background-accented);\n border-radius: 0.1875rem;\n}\n.Overview-readmeContent pre code {\n display: inline;\n max-width: auto;\n padding: 0;\n margin: 0;\n overflow: visible;\n line-height: inherit;\n word-wrap: normal;\n background-color: initial;\n border: 0;\n}\n\n/* ---------- */\n/*\n/* End output from devtools/cmd/css/main.go\n/*\n/* ---------- */\n", "/*!\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.UnitReadme {\n margin-bottom: 2rem;\n}\n.UnitReadme ul,\n.UnitReadme ol {\n list-style: circle;\n}\n.UnitReadme h2 a.UnitReadme-idLink,\n.UnitReadme summary a {\n opacity: 0;\n}\n.UnitReadme h2:hover a,\n.UnitReadme summary:focus a {\n opacity: 1;\n}\n.UnitReadme-title {\n border-bottom: var(--border);\n font-size: 1.375rem;\n padding-bottom: 1rem;\n}\n.UnitReadme-title img {\n margin: auto 1rem auto 0;\n}\n.UnitReadme-content {\n -webkit-mask-image: linear-gradient(to bottom, black 75%, transparent 100%);\n mask-image: linear-gradient(to bottom, black 75%, transparent 100%);\n max-height: 20rem;\n overflow: hidden;\n position: relative;\n}\n.UnitReadme-content ul {\n line-height: 1.5rem;\n}\n.UnitReadme-expandLink {\n background: none;\n border: none;\n color: var(--color-brand-primary);\n cursor: pointer;\n padding: 0;\n}\n.UnitReadme-collapseLink {\n background: none;\n border: none;\n color: var(--color-brand-primary);\n cursor: pointer;\n display: none;\n padding: 0;\n}\n.UnitReadme--expanded .UnitReadme-content {\n -webkit-mask-image: none;\n mask-image: none;\n max-height: initial;\n overflow: initial;\n}\n.UnitReadme--expanded .UnitReadme-expandLink {\n display: none;\n}\n.UnitReadme--expanded .UnitReadme-collapseLink {\n display: block;\n}\n\n.Overview-readmeContent {\n overflow-wrap: break-word;\n}\n", "/*!\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@import url('./_build-context.css');\n@import url('./_directories.css');\n@import url('./_doc.css');\n@import url('./_files.css');\n@import url('./_meta.css');\n@import url('./_outline.css');\n@import url('./_readme_gen.css');\n@import url('./_readme.css');\n\n.UnitDetails {\n column-gap: 2rem;\n display: grid;\n grid-template-columns: minmax(0, auto);\n margin: auto;\n min-height: 32rem;\n}\n@media only screen and (min-width: 64rem) {\n .UnitDetails {\n grid-template-columns: 15.5rem minmax(30.5rem, 43.125rem) minmax(10rem, 15.5rem);\n }\n}\n@media only screen and (min-width: 80rem) {\n .UnitDetails {\n grid-template-columns: 15.5rem minmax(43.125rem, 60rem) 15.5rem;\n justify-content: center;\n }\n}\n.UnitDetails :target {\n scroll-margin-top: calc(var(--js-sticky-header-height, 3.5rem) * 2.15);\n}\n@media only screen and (min-width: 64rem) {\n .UnitDetails :target {\n scroll-margin-top: calc(var(--js-sticky-header-height, 3.5rem) * 1.25);\n }\n}\n\n.UnitDetails :target:not(details, h2) {\n background-color: var(--color-background-highlighted);\n padding: 0.25rem;\n}\n.UnitDetails-meta {\n order: -1;\n}\n@media only screen and (min-width: 64rem) {\n .UnitDetails-meta {\n display: block;\n margin-top: 2rem;\n order: initial;\n }\n}\n.UnitDetails-contentEmpty {\n align-items: center;\n background-color: var(--color-background-accented);\n color: var(--color-text-subtle);\n display: flex;\n flex-direction: column;\n height: 15rem;\n padding-top: 1rem;\n text-align: center;\n}\n.UnitDetails-contentEmpty img {\n height: 7.8125rem;\n width: auto;\n}\n"],
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+ "sourcesContent": ["/*!\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.UnitBuildContext-titleContext label,\n.UnitBuildContext-singleContext {\n color: var(--color-text-subtle);\n font-size: 0.875rem;\n}\n.UnitBuildContext-singleContext {\n padding: 0.35rem 0;\n}\n.UnitBuildContext-titleContext select {\n border-color: var(--color-border);\n color: var(--color-text-subtle);\n margin-left: 0.25rem;\n min-width: 6rem;\n}\n.UnitBuildContext-titleContext option {\n color: var(--color-text-subtle);\n}\n.UnitBuildContext-link {\n display: none;\n}\n@media only screen and (min-width: 30rem) {\n .UnitBuildContext-link {\n display: initial;\n }\n}\n\n.UnitDoc .UnitBuildContext-titleContext {\n position: relative;\n}\n.UnitDoc .UnitBuildContext-titleContext label,\n.UnitDoc .UnitBuildContext-singleContext {\n bottom: 0.875rem;\n position: absolute;\n right: 0;\n}\n", "/*!\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.UnitDirectories {\n margin-bottom: 2rem;\n}\n.UnitDirectories h2 a.UnitDirectories-idLink,\n.UnitDirectories summary a {\n opacity: 0;\n}\n.UnitDirectories h2:hover a,\n.UnitDirectories summary:focus a {\n opacity: 1;\n}\n.UnitDirectories-title {\n border-bottom: var(--border);\n font-size: 1.375rem;\n margin: 0.5rem 0 0 0;\n padding-bottom: 1rem;\n}\n.UnitDirectories-title img {\n margin: auto 1rem auto 0;\n}\n.UnitDirectories-table {\n border-collapse: collapse;\n height: 0;\n table-layout: auto;\n width: 100%;\n}\n.UnitDirectories-table--tree {\n margin-top: -2rem;\n}\n.UnitDirectories-tableHeader {\n background-color: var(--color-background-accented);\n}\n.UnitDirectories-tableHeader--tree {\n visibility: hidden;\n}\n.UnitDirectories td {\n border-bottom: var(--border);\n max-width: 32rem;\n min-width: 12rem;\n padding: 0.25rem 1rem;\n vertical-align: middle;\n word-break: break-word;\n}\n.UnitDirectories th {\n padding: 0.5rem 1rem;\n text-align: left;\n}\n.UnitDirectories tr.hidden {\n display: none;\n}\n.UnitDirectories tr[aria-controls] {\n cursor: pointer;\n}\n.UnitDirectories tr[aria-controls]:hover {\n background-color: var(--color-background-accented);\n}\n.UnitDirectories th.UnitDirectories-toggleHead {\n font-size: 0;\n max-width: 0.625rem;\n padding: 0;\n width: 0.625rem;\n}\n.UnitDirectories td.UnitDirectories-toggleCell,\nth.UnitDirectories-toggleCell {\n background-color: var(--background);\n border: var(--white);\n max-width: 0.625rem;\n padding: 0;\n width: 0.625rem;\n}\n.UnitDirectories-toggleButton {\n font-size: 1.25rem;\n left: -0.75rem;\n margin: 0 0 -1rem -0.875rem;\n padding: 0;\n position: absolute;\n vertical-align: top;\n}\n.UnitDirectories-subSpacer {\n border-right: var(--border);\n display: inline;\n margin-right: 0.875rem;\n width: 0.0625rem;\n}\n.UnitDirectories-toggleButton[aria-expanded='true'] img {\n transform: rotate(90deg);\n}\n.UnitDirectories-pathCell {\n align-items: flex-start;\n display: flex;\n flex-direction: column;\n line-height: 1.75rem;\n word-break: break-all;\n}\n.UnitDirectories-pathCell > div {\n position: relative;\n}\n.UnitDirectories-subdirectory {\n border-left: var(--border);\n display: flex;\n flex-direction: column;\n margin-left: 0.375rem;\n padding: 0.5rem 1rem;\n}\n.UnitDirectories-mobileSynopsis {\n display: none;\n line-height: 1.25rem;\n margin-top: 0.25rem;\n word-break: keep-all;\n}\n@media only screen and (max-width: 52rem) {\n .UnitDirectories-mobileSynopsis {\n display: initial;\n }\n .UnitDirectories-table th.UnitDirectories-desktopSynopsis,\n .UnitDirectories-table td.UnitDirectories-desktopSynopsis {\n display: none;\n }\n}\n.UnitDirectories-expandButton {\n position: relative;\n}\n.UnitDirectories-expandButton button {\n background-color: transparent;\n border: none;\n bottom: 1rem;\n color: var(--color-brand-primary);\n cursor: pointer;\n display: none;\n font-size: 0.875rem;\n position: absolute;\n right: 0;\n text-decoration: none;\n}\n.UnitDirectories-badge {\n border: 0.0625rem solid var(--color-text-subtle);\n border-radius: 0.125rem;\n font-size: 0.6875rem;\n font-weight: 500;\n line-height: 1rem;\n margin-left: 0.5rem;\n margin-top: 0.125rem;\n padding: 0 0.35rem;\n text-align: center;\n}\n", "/*!\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/* stylelint-disable no-descending-specificity */\n.UnitDoc {\n margin-bottom: 2rem;\n word-break: break-word;\n}\n.UnitDoc h2 a.UnitDoc-idLink,\n.UnitDoc summary a {\n opacity: 0;\n}\n.UnitDoc h2:hover a,\n.UnitDoc summary:focus a {\n opacity: 1;\n}\n.UnitDoc-title {\n border-bottom: var(--border);\n padding-bottom: 1rem;\n}\n.UnitDoc-title img {\n margin: auto 1rem auto 0;\n}\n.UnitDoc-emptySection {\n background-color: var(--color-background-accented);\n color: var(--gray-2);\n height: 12.25rem;\n margin-top: 1.5rem;\n text-align: center;\n}\n.UnitDoc-emptySection img {\n height: 7.8125rem;\n width: auto;\n}\n.UnitDoc-emptySection p {\n margin: 1rem auto;\n}\n.UnitDoc .Documentation h4 {\n margin-top: 1.5rem;\n}\n.Documentation {\n display: block;\n}\n.Documentation p {\n margin: 1rem 0;\n}\n.Documentation h2,\n.Documentation h3 {\n margin-top: 1.5rem;\n}\n.Documentation a {\n text-decoration: none;\n}\n.Documentation a:hover {\n text-decoration: underline;\n}\n.Documentation h2 a,\n.Documentation h3 a,\n.Documentation h4 a.Documentation-idLink,\n.Documentation summary a {\n opacity: 0;\n}\n.Documentation a:focus {\n opacity: 1;\n}\n.Documentation h3 a.Documentation-source {\n opacity: 1;\n}\n.Documentation h2:hover a,\n.Documentation h3:hover a,\n.Documentation h4:hover a,\n.Documentation summary:hover a,\n.Documentation summary:focus a {\n opacity: 1;\n}\n.Documentation ul {\n line-height: 1.5rem;\n list-style: none;\n padding-left: 0;\n}\n.Documentation ul ul {\n padding-left: 2em;\n}\n\n.Documentation pre + pre {\n margin-top: 0.625rem;\n}\n\n.Documentation .Documentation-declarationLink + pre {\n border-radius: 0 0 0.3em 0.3em;\n border-top: var(--border);\n margin-top: 0;\n}\n.Documentation pre .comment {\n color: var(--color-code-comment);\n}\n\n.Documentation-toc,\n.Documentation-overview,\n.Documentation-index,\n.Documentation-examples {\n padding-bottom: 0;\n}\n.Documentation-empty {\n color: var(--color-text-subtle);\n margin-top: -0.5rem;\n}\n@media only screen and (min-width: 64rem) {\n .Documentation-toc {\n margin-left: 2rem;\n white-space: nowrap;\n }\n .Documentation-toc-columns {\n columns: 2;\n }\n}\n.Documentation-toc:empty {\n display: none;\n}\n.Documentation-tocItem {\n overflow: hidden;\n text-overflow: ellipsis;\n}\n\n.Documentation-tocItem--constants,\n.Documentation-tocItem--funcsAndTypes,\n.Documentation-tocItem--functions,\n.Documentation-tocItem--types,\n.Documentation-tocItem--variables,\n.Documentation-tocItem--notes {\n display: none;\n}\n\n.Documentation-overviewHeader,\n.Documentation-indexHeader,\n.Documentation-constantsHeader,\n.Documentation-variablesHeader,\n.Documentation-examplesHeader,\n.Documentation-filesHeader,\n.Documentation-functionHeader,\n.Documentation-typeHeader,\n.Documentation-typeMethodHeader,\n.Documentation-typeFuncHeader {\n margin-bottom: 0.5rem;\n}\n\n.Documentation-function h4,\n.Documentation-type h4,\n.Documentation-typeFunc h4,\n.Documentation-typeMethod h4 {\n align-items: baseline;\n display: flex;\n justify-content: space-between;\n}\n.Documentation-sinceVersion {\n color: var(--color-text-subtle);\n font-size: 0.9375rem;\n font-weight: 400;\n}\n\n.Documentation-constants br:last-of-type,\n.Documentation-variables br:last-of-type {\n display: none;\n}\n\n.Documentation-build {\n color: var(--color-text-subtle);\n padding-top: 1.5rem;\n text-align: right;\n}\n.Documentation-declaration pre {\n scroll-padding-top: calc(var(--js-sticky-header-height, 3.5rem) + 3.75rem);\n}\n@media only screen and (min-width: 64rem) {\n .Documentation-declaration pre {\n scroll-padding-top: calc(var(--js-sticky-header-height, 3.5rem) + 0.75rem);\n }\n}\n.Documentation-declaration + .Documentation-declaration {\n margin-top: 0.625rem;\n}\n.Documentation-declarationLink {\n background-color: var(--color-background-accented);\n border: var(--border);\n border-bottom: none;\n border-radius: 0.3em 0.3em 0 0;\n display: block;\n font-size: 0.75rem;\n line-height: 0.5rem;\n padding: 0.375rem;\n text-align: right;\n}\n.Documentation-exampleButtonsContainer {\n align-items: center;\n display: flex;\n justify-content: flex-end;\n margin-top: 0.5rem;\n}\n.Documentation-examplePlayButton {\n background-color: var(--white);\n border: 0.15rem solid var(--turq-med);\n color: var(--turq-med);\n cursor: pointer;\n flex-shrink: 0;\n height: 2.5rem;\n width: 4.125rem;\n}\n.Documentation-exampleRunButton,\n.Documentation-exampleShareButton,\n.Documentation-exampleFormatButton {\n border: 0.0625rem solid var(--turq-dark);\n border-radius: 0.25rem;\n cursor: pointer;\n height: 2rem;\n margin-left: 0.5rem;\n padding: 0 1rem;\n}\n.Documentation-exampleRunButton {\n background-color: var(--turq-dark);\n color: var(--white);\n}\n.Documentation-exampleShareButton,\n.Documentation-exampleFormatButton {\n background-color: var(--white);\n color: var(--turq-dark);\n}\n.Documentation-exampleDetails {\n margin-top: 1rem;\n}\n.Documentation-exampleDetailsBody pre {\n border-radius: 0 0 0.3rem 0.3rem;\n margin-bottom: 1rem;\n margin-top: -0.25rem;\n}\n.Documentation-exampleDetailsBody textarea {\n height: 100%;\n outline: none;\n overflow-x: auto;\n resize: none;\n white-space: pre;\n width: 100%;\n}\n\n/**\n * We add another selector here to these two classes to increase CSS specificity,\n * the selector .Documentation pre + pre overrides .Documentation-exampleCode\n * and .Documentation-exampleOutput by itself and would replace the styles.\n */\n.Documentation-exampleDetailsBody .Documentation-exampleCode {\n border-bottom-left-radius: 0;\n border-bottom-right-radius: 0;\n margin: 0;\n}\n.Documentation-exampleDetailsBody .Documentation-exampleOutput {\n border-top-left-radius: 0;\n border-top-right-radius: 0;\n margin: 0 0 0.5rem;\n}\n.Documentation-exampleDetailsHeader {\n color: var(--color-brand-primary);\n cursor: pointer;\n margin-bottom: 2rem;\n outline: none;\n text-decoration: none;\n}\n.Documentation-exampleOutputLabel {\n color: var(--color-text-subtle);\n}\n.Documentation-exampleError {\n color: var(--pink);\n margin-right: 0.4rem;\n padding-right: 0.5rem;\n}\n\n/* See https://golang.org/issue/43368 for context. */\n.Documentation-function pre,\n.Documentation-typeFunc pre,\n.Documentation-typeMethod pre {\n white-space: pre-wrap;\n word-break: break-all;\n word-wrap: break-word;\n}\n\n.Documentation-indexDeprecated {\n margin-left: 0.5rem;\n}\n.Documentation-deprecatedBody {\n color: var(--color-text-subtle);\n font-size: 0.87rem;\n font-weight: 400;\n margin-left: 0.25rem;\n margin-right: 0.5rem;\n}\n.Documentation-deprecatedTag {\n background-color: var(--color-border);\n border-radius: 0.125rem;\n color: var(--color-text-inverted);\n font-size: 0.75rem;\n font-weight: normal;\n line-height: 1.375;\n padding: 0.125rem 0.25rem;\n text-transform: uppercase;\n vertical-align: middle;\n}\n.Documentation-deprecatedTitle {\n align-items: center;\n display: flex;\n gap: 0.5rem;\n}\n.Documentation-deprecatedDetails {\n color: var(--color-text-subtle);\n}\n.Documentation-deprecatedDetails a {\n color: var(--color-text-subtle);\n}\n.Documentation-deprecatedDetails[open] {\n color: var(--color-text);\n}\n.Documentation-deprecatedDetails[open] a {\n color: var(--color-brand-primary);\n}\n.Documentation-deprecatedDetails .Documentation-deprecatedBody::after {\n color: var(--color-brand-primary);\n content: 'Show';\n}\n.Documentation-deprecatedDetails[open] .Documentation-deprecatedBody::after {\n color: var(--color-brand-primary);\n content: 'Hide';\n}\n.Documentation-deprecatedDetails > summary {\n list-style: none;\n opacity: 1;\n}\n.Documentation-deprecatedDetails .Documentation-source {\n opacity: 1;\n}\n.Documentation-deprecatedItemBody {\n padding: 1rem 1rem 0.5rem 1rem;\n}\n.Documentation-deprecatedMessage {\n align-items: center;\n display: flex;\n gap: 0.5rem;\n margin-bottom: 1rem;\n}\n", "/*!\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.UnitFiles {\n margin-bottom: 2rem;\n}\n.UnitFiles-titleLink {\n position: relative;\n}\n.UnitFiles-titleLink a {\n bottom: 1rem;\n font-size: 0.875rem;\n position: absolute;\n right: 0;\n}\n.UnitFiles-titleLink a::after {\n background-image: url(/static/shared/icon/launch_gm_grey_24dp.svg);\n background-repeat: no-repeat;\n background-size: 0.875rem 1.25rem;\n content: '';\n display: inline-block;\n height: 1rem;\n left: 0.3125rem;\n position: relative;\n top: 0.125rem;\n width: 1rem;\n}\n.UnitFiles h2 a.UnitFiles-idLink,\n.UnitFiles summary a {\n opacity: 0;\n}\n.UnitFiles h2:hover a,\n.UnitFiles summary:focus a {\n opacity: 1;\n}\n.UnitFiles-title {\n border-bottom: var(--border);\n font-size: 1.375rem;\n margin: 0.5rem 0 0 0;\n padding-bottom: 1rem;\n}\n.UnitFiles-title img {\n margin: auto 1rem auto 0;\n}\n.UnitFiles-fileList {\n column-count: 5;\n column-width: 12.5rem;\n line-height: 1.5rem;\n list-style: none;\n margin-top: 1rem;\n padding-left: 0;\n word-break: break-all;\n}\n", "/*!\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.UnitMeta {\n display: grid;\n gap: 1rem 2rem;\n grid-template-columns: max-content auto;\n white-space: nowrap;\n}\n.UnitMeta-details,\n.UnitMeta-links {\n display: flex;\n flex-flow: wrap;\n flex-direction: row;\n gap: 1rem 2rem;\n}\n.UnitMeta-repo {\n align-items: center;\n display: flex;\n}\n.UnitMeta-repo a {\n overflow: hidden;\n text-overflow: ellipsis;\n}\n@media (min-width: 50rem) {\n .UnitMeta {\n grid-template-columns: max-content auto;\n }\n .UnitMeta-details,\n .UnitMeta-links {\n flex-direction: row;\n }\n}\n@media (min-width: 112rem) {\n :root[data-layout='responsive'] .UnitMeta {\n grid-template-columns: 100%;\n }\n :root[data-layout='responsive'] .UnitMeta-details,\n :root[data-layout='responsive'] .UnitMeta-links {\n flex-direction: column;\n white-space: nowrap;\n }\n}\n.UnitMeta-detailsLearn {\n width: 100%;\n}\n@media (min-width: 50rem) {\n .UnitMeta-detailsLearn {\n width: initial;\n }\n}\n", "/*!\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.UnitOutline-jumpTo {\n display: flex;\n margin-bottom: 1rem;\n}\n.UnitOutline-jumpTo button {\n align-items: center;\n background-color: var(--color-background);\n border: var(--border);\n border-radius: 0.25rem;\n color: var(--color-text-subtle);\n cursor: pointer;\n height: 2rem;\n padding-left: 1rem;\n text-align: left;\n width: 100%;\n}\n.UnitOutline-jumpTo button:hover:not([disabled]) {\n border-color: var(--color-border);\n}\n.UnitOutline-jumpToInput:disabled {\n background-color: var(--gray-9);\n}\n", "/*!\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/* ---------- */\n/*\n/* The CSS classes below are generated using devtools/cmd/css/main.go\n/* If the generated CSS already exists, the file is overwritten\n/*\n/* ---------- */\n\n.Overview-readmeContent details {\n display: block;\n}\n.Overview-readmeContent summary {\n display: list-item;\n}\n.Overview-readmeContent a {\n background-color: initial;\n}\n.Overview-readmeContent a:active,\n.Overview-readmeContent a:hover {\n outline-width: 0;\n}\n.Overview-readmeContent strong {\n font-weight: inherit;\n font-weight: bolder;\n}\n.Overview-readmeContent h3 {\n font-size: 2em;\n margin: 0.67em 0;\n}\n.Overview-readmeContent img {\n border-style: none;\n}\n.Overview-readmeContent code,\n.Overview-readmeContent kbd,\n.Overview-readmeContent pre {\n font-family: monospace, monospace;\n font-size: 1em;\n}\n.Overview-readmeContent hr {\n box-sizing: initial;\n height: 0;\n overflow: visible;\n}\n.Overview-readmeContent input {\n font: inherit;\n margin: 0;\n}\n.Overview-readmeContent input {\n overflow: visible;\n}\n.Overview-readmeContent [type='checkbox'] {\n box-sizing: border-box;\n padding: 0;\n}\n.Overview-readmeContent * {\n box-sizing: border-box;\n}\n.Overview-readmeContent input {\n font-family: inherit;\n font-size: inherit;\n line-height: inherit;\n}\n.Overview-readmeContent a {\n color: var(--color-brand-primary);\n text-decoration: none;\n}\n.Overview-readmeContent a:hover {\n text-decoration: underline;\n}\n.Overview-readmeContent strong {\n font-weight: 600;\n}\n.Overview-readmeContent hr {\n height: 0;\n margin: 0.9375rem 0;\n overflow: hidden;\n background: transparent;\n border: 0;\n border-bottom: var(--border);\n}\n.Overview-readmeContent hr:after,\n.Overview-readmeContent hr:before {\n display: table;\n content: '';\n}\n.Overview-readmeContent hr:after {\n clear: both;\n}\n.Overview-readmeContent table {\n border-spacing: 0;\n border-collapse: collapse;\n}\n.Overview-readmeContent td,\n.Overview-readmeContent th {\n padding: 0;\n}\n.Overview-readmeContent details summary {\n cursor: pointer;\n}\n.Overview-readmeContent kbd {\n display: inline-block;\n padding: 0.1875rem 0.3125rem;\n font: 0.6875rem SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace;\n line-height: 0.625rem;\n color: #444d56;\n vertical-align: middle;\n background-color: var(--color-background-accented);\n border: var(--border);\n border-radius: 0.1875rem;\n box-shadow: inset 0 -0.0625rem 0 var(--border);\n}\n.Overview-readmeContent h3,\n.Overview-readmeContent h4,\n.Overview-readmeContent h5,\n.Overview-readmeContent h6,\n.Overview-readmeContent div[aria-level='7'],\n.Overview-readmeContent div[aria-level='8'] {\n margin-top: 0;\n margin-bottom: 0;\n}\n.Overview-readmeContent h3 {\n font-size: 2rem;\n}\n.Overview-readmeContent h3,\n.Overview-readmeContent h4 {\n font-weight: 600;\n}\n.Overview-readmeContent h4 {\n font-size: 1.5rem;\n}\n.Overview-readmeContent h5 {\n font-size: 1.25rem;\n}\n.Overview-readmeContent h5,\n.Overview-readmeContent h6 {\n font-weight: 600;\n}\n.Overview-readmeContent h6 {\n font-size: 1rem;\n}\n.Overview-readmeContent div[aria-level='7'] {\n font-size: 0.875rem;\n}\n.Overview-readmeContent div[aria-level='7'],\n.Overview-readmeContent div[aria-level='8'] {\n font-weight: 600;\n}\n.Overview-readmeContent div[aria-level='8'] {\n font-size: 0.75rem;\n}\n.Overview-readmeContent p {\n margin-top: 0;\n margin-bottom: 0.625rem;\n}\n.Overview-readmeContent blockquote {\n margin: 0;\n}\n.Overview-readmeContent ol,\n.Overview-readmeContent ul {\n padding-left: 0;\n margin-top: 0;\n margin-bottom: 0;\n}\n.Overview-readmeContent ol ol,\n.Overview-readmeContent ul ol {\n list-style-type: lower-roman;\n}\n.Overview-readmeContent ol ol ol,\n.Overview-readmeContent ol ul ol,\n.Overview-readmeContent ul ol ol,\n.Overview-readmeContent ul ul ol {\n list-style-type: lower-alpha;\n}\n.Overview-readmeContent dd {\n margin-left: 0;\n}\n.Overview-readmeContent code,\n.Overview-readmeContent pre {\n font-family: SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace;\n font-size: 0.75rem;\n}\n.Overview-readmeContent pre {\n margin-top: 0;\n margin-bottom: 0;\n}\n.Overview-readmeContent input::-webkit-inner-spin-button,\n.Overview-readmeContent input::-webkit-outer-spin-button {\n margin: 0;\n -webkit-appearance: none;\n appearance: none;\n}\n.Overview-readmeContent :checked + .radio-label {\n position: relative;\n z-index: 1;\n border-color: var(--color-brand-primary);\n}\n.Overview-readmeContent hr {\n border-bottom-color: var(--color-border);\n}\n.Overview-readmeContent kbd {\n display: inline-block;\n padding: 0.1875rem 0.3125rem;\n font: 0.6875rem SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace;\n line-height: 0.625rem;\n color: #444d56;\n vertical-align: middle;\n background-color: var(--color-background-accented);\n border: var(--border);\n border-radius: 0.1875rem;\n box-shadow: inset 0 -0.0625rem 0 var(--color-border);\n}\n.Overview-readmeContent a:not([href]) {\n color: inherit;\n text-decoration: none;\n}\n.Overview-readmeContent blockquote,\n.Overview-readmeContent details,\n.Overview-readmeContent dl,\n.Overview-readmeContent ol,\n.Overview-readmeContent p,\n.Overview-readmeContent pre,\n.Overview-readmeContent table,\n.Overview-readmeContent ul {\n margin-top: 0;\n margin-bottom: 1rem;\n}\n.Overview-readmeContent hr {\n height: 0.25em;\n padding: 0;\n margin: 1.5rem 0;\n background-color: var(--color-border);\n border: 0;\n}\n.Overview-readmeContent blockquote {\n padding: 0 1em;\n color: var(--color-text-subtle);\n border-left: 0.25em solid var(--color-border);\n}\n.Overview-readmeContent blockquote > :first-child {\n margin-top: 0;\n}\n.Overview-readmeContent blockquote > :last-child {\n margin-bottom: 0;\n}\n.Overview-readmeContent h3,\n.Overview-readmeContent h4,\n.Overview-readmeContent h5,\n.Overview-readmeContent h6,\n.Overview-readmeContent div[aria-level='7'],\n.Overview-readmeContent div[aria-level='8'] {\n margin-top: 1.5rem;\n margin-bottom: 1rem;\n font-weight: 600;\n line-height: 1.25;\n}\n.Overview-readmeContent h3 {\n font-size: 2em;\n}\n.Overview-readmeContent h3,\n.Overview-readmeContent h4 {\n padding-bottom: 0.3em;\n border-bottom: var(--border);\n}\n.Overview-readmeContent h4 {\n font-size: 1.5em;\n}\n.Overview-readmeContent h5 {\n font-size: 1.25em;\n}\n.Overview-readmeContent h6 {\n font-size: 1em;\n}\n.Overview-readmeContent div[aria-level='7'] {\n font-size: 0.875em;\n}\n.Overview-readmeContent div[aria-level='8'] {\n font-size: 0.85em;\n color: var(--color-text-subtle);\n}\n.Overview-readmeContent ol,\n.Overview-readmeContent ul {\n padding-left: 2em;\n}\n.Overview-readmeContent ol ol,\n.Overview-readmeContent ol ul,\n.Overview-readmeContent ul ol,\n.Overview-readmeContent ul ul {\n margin-top: 0;\n margin-bottom: 0;\n}\n.Overview-readmeContent li {\n word-wrap: break-all;\n}\n.Overview-readmeContent li > p {\n margin-top: 1rem;\n}\n.Overview-readmeContent li + li {\n margin-top: 0.25em;\n}\n.Overview-readmeContent dl {\n padding: 0;\n}\n.Overview-readmeContent dl dt {\n padding: 0;\n margin-top: 1rem;\n font-size: 1em;\n font-style: italic;\n font-weight: 600;\n}\n.Overview-readmeContent dl dd {\n padding: 0 1rem;\n margin-bottom: 1rem;\n}\n.Overview-readmeContent table {\n display: block;\n width: 100%;\n overflow: auto;\n}\n.Overview-readmeContent table th {\n font-weight: 600;\n}\n.Overview-readmeContent table td,\n.Overview-readmeContent table th {\n padding: 0.375rem 0.8125rem;\n border: var(--border);\n}\n.Overview-readmeContent table tr {\n background-color: var(--color-background);\n border-top: var(--border);\n}\n.Overview-readmeContent table tr:nth-child(2n) {\n background-color: var(--color-background-accented);\n}\n.Overview-readmeContent img {\n max-width: 100%;\n box-sizing: initial;\n background-color: var(--color-background);\n}\n.Overview-readmeContent img[align='right'] {\n padding-left: 1.25rem;\n}\n.Overview-readmeContent img[align='left'] {\n padding-right: 1.25rem;\n}\n.Overview-readmeContent code {\n padding: 0.2em 0.4em;\n margin: 0;\n font-size: 85%;\n background-color: var(--color-background-accented);\n border-radius: 0.1875rem;\n}\n.Overview-readmeContent pre {\n word-wrap: normal;\n}\n.Overview-readmeContent pre > code {\n padding: 0;\n margin: 0;\n font-size: 100%;\n word-break: normal;\n white-space: pre;\n background: transparent;\n border: 0;\n}\n.Overview-readmeContent pre {\n padding: 1rem;\n overflow: auto;\n font-size: 85%;\n line-height: 1.45;\n background-color: var(--color-background-accented);\n border-radius: 0.1875rem;\n}\n.Overview-readmeContent pre code {\n display: inline;\n max-width: auto;\n padding: 0;\n margin: 0;\n overflow: visible;\n line-height: inherit;\n word-wrap: normal;\n background-color: initial;\n border: 0;\n}\n\n/* ---------- */\n/*\n/* End output from devtools/cmd/css/main.go\n/*\n/* ---------- */\n", "/*!\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.UnitReadme {\n margin-bottom: 2rem;\n}\n.UnitReadme ul,\n.UnitReadme ol {\n list-style: circle;\n}\n.UnitReadme h2 a.UnitReadme-idLink,\n.UnitReadme summary a {\n opacity: 0;\n}\n.UnitReadme h2:hover a,\n.UnitReadme summary:focus a {\n opacity: 1;\n}\n.UnitReadme-title {\n border-bottom: var(--border);\n font-size: 1.375rem;\n padding-bottom: 1rem;\n}\n.UnitReadme-title img {\n margin: auto 1rem auto 0;\n}\n.UnitReadme-content {\n -webkit-mask-image: linear-gradient(to bottom, black 75%, transparent 100%);\n mask-image: linear-gradient(to bottom, black 75%, transparent 100%);\n max-height: 20rem;\n overflow: hidden;\n position: relative;\n}\n.UnitReadme-content ul {\n line-height: 1.5rem;\n}\n.UnitReadme-expandLink {\n background: none;\n border: none;\n color: var(--color-brand-primary);\n cursor: pointer;\n padding: 0;\n}\n.UnitReadme-collapseLink {\n background: none;\n border: none;\n color: var(--color-brand-primary);\n cursor: pointer;\n display: none;\n padding: 0;\n}\n.UnitReadme--expanded .UnitReadme-content {\n -webkit-mask-image: none;\n mask-image: none;\n max-height: initial;\n overflow: initial;\n}\n.UnitReadme--toggle .UnitReadme-expandLink {\n display: block;\n}\n.UnitReadme--expanded .UnitReadme-expandLink {\n display: none;\n}\n.UnitReadme--expanded.UnitReadme--toggle .UnitReadme-collapseLink {\n display: block;\n}\n\n.Overview-readmeContent {\n overflow-wrap: break-word;\n}\n", "/*!\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@import url('./_build-context.css');\n@import url('./_directories.css');\n@import url('./_doc.css');\n@import url('./_files.css');\n@import url('./_meta.css');\n@import url('./_outline.css');\n@import url('./_readme_gen.css');\n@import url('./_readme.css');\n\n.UnitDetails {\n column-gap: 2rem;\n display: grid;\n grid-template-columns: minmax(0, auto);\n margin: auto;\n min-height: 32rem;\n}\n@media only screen and (min-width: 64rem) {\n .UnitDetails {\n grid-template-columns: 15.5rem minmax(30.5rem, 43.125rem) minmax(10rem, 15.5rem);\n }\n}\n@media only screen and (min-width: 80rem) {\n .UnitDetails {\n grid-template-columns: 15.5rem minmax(43.125rem, 60rem) 15.5rem;\n justify-content: center;\n }\n}\n.UnitDetails :target {\n scroll-margin-top: calc(var(--js-sticky-header-height, 3.5rem) * 2.15);\n}\n@media only screen and (min-width: 64rem) {\n .UnitDetails :target {\n scroll-margin-top: calc(var(--js-sticky-header-height, 3.5rem) * 1.25);\n }\n}\n\n.UnitDetails :target:not(details, h2) {\n background-color: var(--color-background-highlighted);\n padding: 0.25rem;\n}\n.UnitDetails-meta {\n order: -1;\n}\n@media only screen and (min-width: 64rem) {\n .UnitDetails-meta {\n display: block;\n margin-top: 2rem;\n order: initial;\n }\n}\n.UnitDetails-contentEmpty {\n align-items: center;\n background-color: var(--color-background-accented);\n color: var(--color-text-subtle);\n display: flex;\n flex-direction: column;\n height: 15rem;\n padding-top: 1rem;\n text-align: center;\n}\n.UnitDetails-contentEmpty img {\n height: 7.8125rem;\n width: auto;\n}\n"],
+ "mappings": ";;;;;AAMA,qEAEE,+BACA,kBAEF,gCAXA,iBAcA,sCACE,iCACA,+BACA,mBACA,eAEF,sCACE,+BAEF,uBACE,aAEF,0CACE,uBACE,iBAIJ,wCACE,kBAEF,uFAEE,eACA,kBACA,QCjCF,iBACE,mBAEF,wEAEE,UAEF,6DAEE,UAEF,uBACE,4BACA,mBAnBF,iBAqBE,oBAEF,2BAvBA,wBA0BA,uBACE,yBACA,SACA,kBACA,WAEF,6BACE,iBAEF,6BACE,kDAEF,mCACE,kBAEF,oBACE,4BACA,gBACA,gBA5CF,oBA8CE,sBACA,sBAEF,oBAjDA,mBAmDE,gBAEF,2BACE,aAEF,mCACE,eAEF,yCACE,kDAEF,+CACE,YACA,kBAhEF,UAkEE,cAEF,6EAEE,mCACA,oBACA,kBAxEF,UA0EE,cAEF,8BACE,kBACA,aA9EF,oCAiFE,kBACA,mBAEF,2BACE,2BACA,eACA,qBACA,eAEF,sDACE,wBAEF,0BACE,uBACA,aACA,sBACA,oBACA,qBAEF,8BACE,kBAEF,8BACE,0BACA,aACA,sBACA,oBA3GF,mBA8GA,gCACE,aACA,oBACA,kBACA,oBAEF,0CACE,gCACE,gBAEF,oHAEE,cAGJ,8BACE,kBAEF,qCACE,6BACA,YACA,YACA,iCACA,eACA,aACA,kBACA,kBACA,QACA,qBAEF,uBACE,+CA7IF,sBA+IE,mBACA,gBACA,iBACA,kBACA,mBAnJF,iBAqJE,kBC9IF,SACE,mBACA,sBAEF,gDAEE,UAEF,6CAEE,UAEF,eACE,4BACA,oBAEF,mBAvBA,wBA0BA,sBACE,kDACA,oBACA,gBACA,kBACA,kBAEF,0BACE,iBACA,WAEF,wBArCA,iBAwCA,2BACE,kBAEF,eACE,cAEF,iBA9CA,cAiDA,oCAEE,kBAEF,iBACE,qBAEF,uBACE,0BAEF,0GAIE,UAEF,uBACE,UAEF,yCACE,UAEF,4IAKE,UAEF,kBACE,mBACA,gBACA,eAEF,qBACE,iBAGF,uBACE,mBAGF,kDA3FA,4BA6FE,yBACA,aAEF,4BACE,gCAGF,wFAIE,iBAEF,qBACE,+BACA,kBAEF,0CACE,mBACE,iBACA,mBAEF,2BACE,WAGJ,yBACE,aAEF,uBACE,gBACA,uBAGF,wMAME,aAGF,sSAUE,oBAGF,0GAIE,qBACA,aACA,8BAEF,4BACE,+BACA,mBACA,gBAGF,kFAEE,aAGF,qBACE,+BACA,mBACA,iBAEF,+BACE,0EAEF,0CACE,+BACE,0EAGJ,sDACE,mBAEF,+BACE,kDACA,qBACA,mBA3LF,4BA6LE,cACA,iBACA,kBA/LF,gBAiME,iBAEF,uCACE,mBACA,aACA,yBACA,iBAEF,iCACE,8BACA,oCACA,sBACA,eACA,cACA,cACA,eAEF,qGAGE,uCArNF,qBAuNE,eACA,YACA,kBAzNF,eA4NA,gCACE,kCACA,mBAEF,qEAEE,8BACA,uBAEF,8BACE,gBAEF,sCAxOA,8BA0OE,mBACA,mBAEF,2CACE,YACA,aACA,gBACA,YACA,gBACA,WAQF,6DACE,4BACA,6BA7PF,SAgQA,+DACE,yBACA,0BAlQF,iBAqQA,oCACE,iCACA,eACA,mBACA,aACA,qBAEF,kCACE,+BAEF,4BACE,kBACA,mBACA,oBAIF,sFAGE,qBACA,qBACA,qBAGF,+BACE,kBAEF,8BACE,+BACA,iBACA,gBACA,mBACA,mBAEF,6BACE,qCAzSF,sBA2SE,iCACA,iBACA,gBACA,kBA9SF,uBAgTE,yBACA,sBAEF,+BACE,mBACA,aACA,UAEF,oEACE,+BAKF,uCACE,wBAEF,yCACE,iCAEF,qEACE,iCACA,eAEF,2EACE,iCACA,eAEF,yCACE,gBACA,UAEF,uDACE,UAEF,kCAnVA,wBAsVA,iCACE,mBACA,aACA,UACA,mBCpVF,WACE,mBAEF,qBACE,kBAEF,uBACE,YACA,kBACA,kBACA,QAEF,6BACE,kEACA,4BACA,gCACA,WACA,qBACA,YACA,cACA,kBACA,YACA,WAEF,sDAEE,UAEF,iDAEE,UAEF,iBACE,4BACA,mBAxCF,iBA0CE,oBAEF,qBA5CA,wBA+CA,oBACE,eACA,qBACA,mBACA,gBACA,gBACA,eACA,qBChDF,UACE,aACA,cACA,uCACA,mBAEF,kCAEE,aACA,eACA,mBACA,cAEF,eACE,mBACA,aAEF,iBACE,gBACA,uBAEF,0BACE,UACE,uCAEF,kCAEE,oBAGJ,2BACE,wCACE,2BAEF,8FAEE,sBACA,oBAGJ,uBACE,WAEF,0BACE,uBACE,eC7CJ,oBACE,aACA,mBAEF,2BACE,mBACA,yCACA,qBAbF,qBAeE,+BACA,eACA,YACA,kBACA,gBACA,WAEF,iDACE,iCAEF,kCACE,+BCbF,gCACE,cAEF,gCACE,kBAEF,0BACE,yBAEF,iEAEE,gBAEF,+BACE,oBACA,mBAEF,2BACE,cA/BF,eAkCA,4BACE,kBAEF,qFAGE,gCACA,cAEF,2BACE,mBACA,SACA,iBAEF,8BACE,aAjDF,SAoDA,8BACE,iBAEF,wCACE,sBAxDF,UA2DA,0BACE,sBAEF,8BACE,oBACA,kBACA,oBAEF,0BACE,iCACA,qBAEF,gCACE,0BAEF,+BACE,gBAEF,2BACE,SA9EF,kBAgFE,gBACA,uBACA,SACA,4BAEF,mEAEE,cACA,WAEF,iCACE,WAEF,8BACE,iBACA,yBAEF,sDAjGA,UAqGA,wCACE,eAEF,4BACE,qBAzGF,0BA2GE,sEACA,oBACA,cACA,sBACA,kDACA,qBAhHF,uBAkHE,6CAEF,oMAME,aACA,gBAEF,2BACE,eAEF,sDAEE,gBAEF,2BACE,iBAEF,2BACE,kBAEF,sDAEE,gBAEF,2BACE,eAEF,4CACE,kBAEF,wFAEE,gBAEF,4CACE,iBAEF,0BACE,aACA,sBAEF,mCA/JA,SAkKA,sDAEE,eACA,aACA,gBAEF,4DAEE,4BAEF,oIAIE,4BAEF,2BACE,cAEF,yDAEE,oEACA,iBAEF,4BACE,aACA,gBAEF,kHA9LA,SAiME,wBACA,gBAEF,8CACE,kBACA,UACA,wCAEF,2BACE,wCAEF,4BACE,qBA7MF,0BA+ME,sEACA,oBACA,cACA,sBACA,kDACA,qBApNF,uBAsNE,mDAEF,sCACE,cACA,qBAEF,wOAQE,aACA,mBAEF,2BACE,aAxOF,0BA2OE,qCACA,SAEF,mCA9OA,cAgPE,+BACA,4CAEF,gDACE,aAEF,+CACE,gBAEF,oMAME,kBACA,mBACA,gBACA,iBAEF,2BACE,cAEF,sDAEE,oBACA,4BAEF,2BACE,gBAEF,2BACE,iBAEF,2BACE,cAEF,4CACE,iBAEF,4CACE,gBACA,+BAEF,sDAEE,iBAEF,wHAIE,aACA,gBAEF,2BACE,oBAEF,6BACE,gBAEF,8BACE,iBAEF,2BAhTA,UAmTA,8BAnTA,UAqTE,gBACA,cACA,kBACA,gBAEF,8BA1TA,eA4TE,mBAEF,8BACE,cACA,WACA,cAEF,iCACE,gBAEF,kEAtUA,yBAyUE,qBAEF,iCACE,yCACA,yBAEF,+CACE,kDAEF,4BACE,eACA,mBACA,yCAEF,yCACE,qBAEF,wCACE,sBAEF,6BA7VA,2BAgWE,cACA,kDAjWF,uBAoWA,4BACE,iBAEF,iCAvWA,mBA0WE,eACA,kBACA,gBACA,uBACA,SAEF,4BAhXA,aAkXE,cACA,cACA,iBACA,kDArXF,uBAwXA,iCACE,eACA,eA1XF,mBA6XE,iBACA,oBACA,iBACA,yBACA,SC3XF,YACE,mBAEF,8BAEE,kBAEF,yDAEE,UAEF,mDAEE,UAEF,kBACE,4BACA,mBACA,oBAEF,sBA1BA,wBA6BA,oBACE,yEACA,iEACA,iBACA,gBACA,kBAEF,uBACE,mBAEF,uBACE,gBACA,YACA,iCACA,eA3CF,UA8CA,yBACE,gBACA,YACA,iCACA,eACA,aAnDF,UAsDA,0CACE,wBACA,gBACA,mBACA,iBAEF,2CACE,cAEF,6CACE,aAEF,kEACE,cAGF,wBACE,yBCxDF,aACE,gBACA,aACA,qCAlBF,YAoBE,iBAEF,0CACE,aACE,+EAGJ,0CACE,aACE,8DACA,wBAGJ,qBACE,sEAEF,0CACE,qBACE,uEAIJ,qCACE,qDA3CF,eA8CA,kBACE,SAEF,0CACE,kBACE,cACA,gBACA,eAGJ,0BACE,mBACA,kDACA,+BACA,aACA,sBACA,aACA,iBACA,kBAEF,8BACE,iBACA",
"names": []
}
diff --git a/static/frontend/unit/main/main.ts b/static/frontend/unit/main/main.ts
index d23dfb3..8c11915 100644
--- a/static/frontend/unit/main/main.ts
+++ b/static/frontend/unit/main/main.ts
@@ -40,6 +40,10 @@
const readmeCollapse = document.querySelector('.js-readmeCollapse');
const mobileNavSelect = document.querySelector<HTMLSelectElement>('.DocNavMobile-select');
if (readme && readmeContent && readmeOutline && readmeExpand.length && readmeCollapse) {
+ if (readme.clientHeight > 320) {
+ readme?.classList.remove('UnitReadme--expanded');
+ readme?.classList.add('UnitReadme--toggle');
+ }
if (window.location.hash.includes('readme')) {
expandReadme();
}
diff --git "a/tests/e2e/__image_snapshots__/ci/unit-desktop--github.com-jba-bit\043section-readme-snap.png" "b/tests/e2e/__image_snapshots__/ci/unit-desktop--github.com-jba-bit\043section-readme-snap.png"
index 6abad4d..0d9bf0d 100644
--- "a/tests/e2e/__image_snapshots__/ci/unit-desktop--github.com-jba-bit\043section-readme-snap.png"
+++ "b/tests/e2e/__image_snapshots__/ci/unit-desktop--github.com-jba-bit\043section-readme-snap.png"
Binary files differ
diff --git a/tests/e2e/__image_snapshots__/ci/unit-desktop--github.com-jba-bit-snap.png b/tests/e2e/__image_snapshots__/ci/unit-desktop--github.com-jba-bit-snap.png
index c28dd4b..f58788f 100644
--- a/tests/e2e/__image_snapshots__/ci/unit-desktop--github.com-jba-bit-snap.png
+++ b/tests/e2e/__image_snapshots__/ci/unit-desktop--github.com-jba-bit-snap.png
Binary files differ
diff --git a/tests/e2e/__image_snapshots__/ci/unit-desktop--rsc.io-quote-snap.png b/tests/e2e/__image_snapshots__/ci/unit-desktop--rsc.io-quote-snap.png
index dcd5a5e..ccf9955 100644
--- a/tests/e2e/__image_snapshots__/ci/unit-desktop--rsc.io-quote-snap.png
+++ b/tests/e2e/__image_snapshots__/ci/unit-desktop--rsc.io-quote-snap.png
Binary files differ
diff --git "a/tests/e2e/__image_snapshots__/ci/unit-mobile--github.com-jba-bit\043section-readme-snap.png" "b/tests/e2e/__image_snapshots__/ci/unit-mobile--github.com-jba-bit\043section-readme-snap.png"
index f977e97..0decaa4 100644
--- "a/tests/e2e/__image_snapshots__/ci/unit-mobile--github.com-jba-bit\043section-readme-snap.png"
+++ "b/tests/e2e/__image_snapshots__/ci/unit-mobile--github.com-jba-bit\043section-readme-snap.png"
Binary files differ
diff --git a/tests/e2e/__image_snapshots__/ci/unit-mobile--github.com-jba-bit-snap.png b/tests/e2e/__image_snapshots__/ci/unit-mobile--github.com-jba-bit-snap.png
index dfafef4..3a69031 100644
--- a/tests/e2e/__image_snapshots__/ci/unit-mobile--github.com-jba-bit-snap.png
+++ b/tests/e2e/__image_snapshots__/ci/unit-mobile--github.com-jba-bit-snap.png
Binary files differ
diff --git a/tests/e2e/__image_snapshots__/ci/unit-mobile--rsc.io-quote-snap.png b/tests/e2e/__image_snapshots__/ci/unit-mobile--rsc.io-quote-snap.png
index 747270c..01287af 100644
--- a/tests/e2e/__image_snapshots__/ci/unit-mobile--rsc.io-quote-snap.png
+++ b/tests/e2e/__image_snapshots__/ci/unit-mobile--rsc.io-quote-snap.png
Binary files differ
