content/static: update empty message in jump to modal
Change-Id: I0efd36a203f094db922ae3ceeaa0d3fa658a6109
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/310230
Trust: Jamal Carvalho <jamal@golang.org>
Run-TryBot: Jamal Carvalho <jamal@golang.org>
Reviewed-by: Julie Qiu <julie@golang.org>
TryBot-Result: kokoro <noreply+kokoro@google.com>
diff --git a/content/static/js/jump.js b/content/static/js/jump.js
index 86873e8..33382c4 100644
--- a/content/static/js/jump.js
+++ b/content/static/js/jump.js
@@ -3,5 +3,5 @@
* Copyright 2019-2020 The Go Authors. All rights reserved.
* Use of this source code is governed by a BSD-style
* license that can be found in the LICENSE file.
- */const jumpDialog=document.querySelector(".JumpDialog"),jumpBody=jumpDialog?.querySelector(".JumpDialog-body"),jumpList=jumpDialog?.querySelector(".JumpDialog-list"),jumpFilter=jumpDialog?.querySelector(".JumpDialog-input"),searchInput=document.querySelector(".js-searchFocus"),doc=document.querySelector(".js-documentation");function loadPolyfill(){return import(`${window.location.origin}/third_party/dialog-polyfill/dialog-polyfill.esm.js`)}jumpDialog&&!jumpDialog.showModal&&loadPolyfill().then(({default:t})=>{t.registerDialog(jumpDialog)});let jumpListItems;function collectJumpListItems(){const t=[];if(!!doc){for(const e of doc.querySelectorAll("[data-kind]"))t.push(newJumpListItem(e));for(const e of t)e.link.addEventListener("click",function(){jumpDialog?.close()});return t.sort(function(e,n){return e.lower.localeCompare(n.lower)}),t}}function newJumpListItem(t){const e=document.createElement("a"),n=t.getAttribute("id");e.setAttribute("href","#"+n),e.setAttribute("tabindex","-1");const o=t.getAttribute("data-kind");return{link:e,name:n??"",kind:o??"",lower:n?.toLowerCase()??""}}let lastFilterValue,activeJumpItem=-1;function updateJumpList(t){for(lastFilterValue=t,jumpListItems||(jumpListItems=collectJumpListItems()),setActiveJumpItem(-1);jumpList?.firstChild;)jumpList.firstChild.remove();if(t){const e=t.toLowerCase(),n=[],o=[],c=[],l=(i,s,r)=>i.name.substring(0,s)+"<b>"+i.name.substring(s,r)+"</b>"+i.name.substring(r);for(const i of jumpListItems??[]){const s=i.name.toLowerCase();if(s===e)i.link.innerHTML=l(i,0,i.name.length),n.push(i);else if(s.startsWith(e))i.link.innerHTML=l(i,0,t.length),o.push(i);else{const r=s.indexOf(e);r>-1&&(i.link.innerHTML=l(i,r,r+t.length),c.push(i))}}for(const i of n.concat(o).concat(c))jumpList?.appendChild(i.link)}else{if(!jumpListItems||jumpListItems.length===0){const e=document.createElement("i");e.innerHTML="No jump items found.",jumpList?.appendChild(e)}for(const e of jumpListItems??[])e.link.innerHTML=e.name+" <i>"+e.kind+"</i>",jumpList?.appendChild(e.link)}jumpBody&&(jumpBody.scrollTop=0),jumpListItems?.length&&jumpList&&jumpList.children.length>0&&setActiveJumpItem(0)}function setActiveJumpItem(t){const e=jumpList?.children;if(!(!e||!jumpBody)){if(activeJumpItem>=0&&e[activeJumpItem].classList.remove("JumpDialog-active"),t>=e.length&&(t=e.length-1),t>=0){e[t].classList.add("JumpDialog-active");const n=e[t].offsetTop-e[0].offsetTop,o=n+e[t].clientHeight;n<jumpBody.scrollTop?jumpBody.scrollTop=n:o>jumpBody.scrollTop+jumpBody.clientHeight&&(jumpBody.scrollTop=o-jumpBody.clientHeight)}activeJumpItem=t}}function incActiveJumpItem(t){if(activeJumpItem<0)return;let e=activeJumpItem+t;e<0&&(e=0),setActiveJumpItem(e)}jumpFilter?.addEventListener("keyup",function(){jumpFilter.value.toUpperCase()!=lastFilterValue.toUpperCase()&&updateJumpList(jumpFilter.value)}),jumpFilter?.addEventListener("keydown",function(t){const e=38,n=40,o=13;switch(t.which){case e:incActiveJumpItem(-1),t.preventDefault();break;case n:incActiveJumpItem(1),t.preventDefault();break;case o:activeJumpItem>=0&&jumpList&&jumpList.children[activeJumpItem].click();break}});const shortcutsDialog=document.querySelector(".ShortcutsDialog");shortcutsDialog&&!shortcutsDialog.showModal&&loadPolyfill().then(({default:t})=>{t.registerDialog(shortcutsDialog)}),document.addEventListener("keypress",function(t){if(jumpDialog?.open||shortcutsDialog?.open)return;const e=t.target,n=e?.tagName;if(n=="INPUT"||n=="SELECT"||n=="TEXTAREA"||e?.contentEditable=="true"||t.metaKey||t.ctrlKey)return;switch(String.fromCharCode(t.which)){case"f":case"F":t.preventDefault(),jumpFilter&&(jumpFilter.value=""),jumpDialog?.showModal(),updateJumpList("");break;case"?":shortcutsDialog?.showModal();break;case"/":searchInput&&!window.navigator.userAgent.includes("Firefox")&&(t.preventDefault(),searchInput.focus());break}});const jumpOutlineInput=document.querySelector(".js-jumpToInput");jumpOutlineInput&&jumpOutlineInput.addEventListener("click",()=>{jumpFilter&&(jumpFilter.value=""),jumpDialog?.showModal(),updateJumpList("")});
+ */const jumpDialog=document.querySelector(".JumpDialog"),jumpBody=jumpDialog?.querySelector(".JumpDialog-body"),jumpList=jumpDialog?.querySelector(".JumpDialog-list"),jumpFilter=jumpDialog?.querySelector(".JumpDialog-input"),searchInput=document.querySelector(".js-searchFocus"),doc=document.querySelector(".js-documentation");function loadPolyfill(){return import(`${window.location.origin}/third_party/dialog-polyfill/dialog-polyfill.esm.js`)}jumpDialog&&!jumpDialog.showModal&&loadPolyfill().then(({default:t})=>{t.registerDialog(jumpDialog)});let jumpListItems;function collectJumpListItems(){const t=[];if(!!doc){for(const e of doc.querySelectorAll("[data-kind]"))t.push(newJumpListItem(e));for(const e of t)e.link.addEventListener("click",function(){jumpDialog?.close()});return t.sort(function(e,n){return e.lower.localeCompare(n.lower)}),t}}function newJumpListItem(t){const e=document.createElement("a"),n=t.getAttribute("id");e.setAttribute("href","#"+n),e.setAttribute("tabindex","-1");const o=t.getAttribute("data-kind");return{link:e,name:n??"",kind:o??"",lower:n?.toLowerCase()??""}}let lastFilterValue,activeJumpItem=-1;function updateJumpList(t){for(lastFilterValue=t,jumpListItems||(jumpListItems=collectJumpListItems()),setActiveJumpItem(-1);jumpList?.firstChild;)jumpList.firstChild.remove();if(t){const e=t.toLowerCase(),n=[],o=[],c=[],l=(i,r,s)=>i.name.substring(0,r)+"<b>"+i.name.substring(r,s)+"</b>"+i.name.substring(s);for(const i of jumpListItems??[]){const r=i.name.toLowerCase();if(r===e)i.link.innerHTML=l(i,0,i.name.length),n.push(i);else if(r.startsWith(e))i.link.innerHTML=l(i,0,t.length),o.push(i);else{const s=r.indexOf(e);s>-1&&(i.link.innerHTML=l(i,s,s+t.length),c.push(i))}}for(const i of n.concat(o).concat(c))jumpList?.appendChild(i.link)}else{if(!jumpListItems||jumpListItems.length===0){const e=document.createElement("i");e.innerHTML="There are no identifiers on this page.",jumpList?.appendChild(e)}for(const e of jumpListItems??[])e.link.innerHTML=e.name+" <i>"+e.kind+"</i>",jumpList?.appendChild(e.link)}jumpBody&&(jumpBody.scrollTop=0),jumpListItems?.length&&jumpList&&jumpList.children.length>0&&setActiveJumpItem(0)}function setActiveJumpItem(t){const e=jumpList?.children;if(!(!e||!jumpBody)){if(activeJumpItem>=0&&e[activeJumpItem].classList.remove("JumpDialog-active"),t>=e.length&&(t=e.length-1),t>=0){e[t].classList.add("JumpDialog-active");const n=e[t].offsetTop-e[0].offsetTop,o=n+e[t].clientHeight;n<jumpBody.scrollTop?jumpBody.scrollTop=n:o>jumpBody.scrollTop+jumpBody.clientHeight&&(jumpBody.scrollTop=o-jumpBody.clientHeight)}activeJumpItem=t}}function incActiveJumpItem(t){if(activeJumpItem<0)return;let e=activeJumpItem+t;e<0&&(e=0),setActiveJumpItem(e)}jumpFilter?.addEventListener("keyup",function(){jumpFilter.value.toUpperCase()!=lastFilterValue.toUpperCase()&&updateJumpList(jumpFilter.value)}),jumpFilter?.addEventListener("keydown",function(t){const e=38,n=40,o=13;switch(t.which){case e:incActiveJumpItem(-1),t.preventDefault();break;case n:incActiveJumpItem(1),t.preventDefault();break;case o:activeJumpItem>=0&&jumpList&&jumpList.children[activeJumpItem].click();break}});const shortcutsDialog=document.querySelector(".ShortcutsDialog");shortcutsDialog&&!shortcutsDialog.showModal&&loadPolyfill().then(({default:t})=>{t.registerDialog(shortcutsDialog)}),document.addEventListener("keypress",function(t){if(jumpDialog?.open||shortcutsDialog?.open)return;const e=t.target,n=e?.tagName;if(n=="INPUT"||n=="SELECT"||n=="TEXTAREA"||e?.contentEditable=="true"||t.metaKey||t.ctrlKey)return;switch(String.fromCharCode(t.which)){case"f":case"F":t.preventDefault(),jumpFilter&&(jumpFilter.value=""),jumpDialog?.showModal(),updateJumpList("");break;case"?":shortcutsDialog?.showModal();break;case"/":searchInput&&!window.navigator.userAgent.includes("Firefox")&&(t.preventDefault(),searchInput.focus());break}});const jumpOutlineInput=document.querySelector(".js-jumpToInput");jumpOutlineInput&&jumpOutlineInput.addEventListener("click",()=>{jumpFilter&&(jumpFilter.value=""),jumpDialog?.showModal(),updateJumpList("")});
//# sourceMappingURL=jump.js.map
diff --git a/content/static/js/jump.js.map b/content/static/js/jump.js.map
index eb738db..0d5bb06 100644
--- a/content/static/js/jump.js.map
+++ b/content/static/js/jump.js.map
@@ -1,7 +1,7 @@
{
"version": 3,
"sources": ["jump.ts"],
- "sourcesContent": ["/*!\n * @license\n * Copyright 2019-2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n// This file implements the behavior of the \"jump to identifer\" dialog for Go\n// package documentation, as well as the simple dialog that displays keyboard\n// shortcuts.\n\n// The DOM for the dialogs is at the bottom of content/static/html/pages/pkg_doc.tmpl.\n// The CSS is in content/static/css/stylesheet.css.\n\n// The dialog is activated by pressing the 'f' key. It presents a list\n// (#JumpDialog-list) of all Go identifiers displayed in the documentation.\n// Entering text in the dialog's text box (#JumpDialog-filter) restricts the\n// list to identifiers containing the text. Clicking on an identifier jumps to\n// its documentation.\n\n// This code is based on\n// https://go.googlesource.com/gddo/+/refs/heads/master/gddo-server/assets/site.js.\n// It was modified to remove the dependence on jquery and bootstrap.\n\nconst jumpDialog = document.querySelector<HTMLDialogElement>('.JumpDialog');\nconst jumpBody = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-body');\nconst jumpList = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-list');\nconst jumpFilter = jumpDialog?.querySelector<HTMLInputElement>('.JumpDialog-input');\nconst searchInput = document.querySelector<HTMLInputElement>('.js-searchFocus');\nconst doc = document.querySelector<HTMLDivElement>('.js-documentation');\n\nfunction loadPolyfill() {\n return import(`${window.location.origin}/third_party/dialog-polyfill/dialog-polyfill.esm.js`);\n}\n\nif (jumpDialog && !jumpDialog.showModal) {\n loadPolyfill().then(({ default: dialogPolyfill }) => {\n dialogPolyfill.registerDialog(jumpDialog);\n });\n}\n\ninterface JumpListItem {\n link: HTMLAnchorElement;\n name: string;\n kind: string;\n lower: string;\n}\n\nlet jumpListItems: JumpListItem[] | undefined; // All the identifiers in the doc; computed only once.\n\n// collectJumpListItems returns a list of items, one for each identifier in the\n// documentation on the current page.\n//\n// It uses the data-kind attribute generated in the documentation HTML to find\n// the identifiers and their id attributes.\n//\n// If there are no data-kind attributes, then we have older doc; fall back to\n// a less precise method.\nfunction collectJumpListItems() {\n const items = [];\n if (!doc) return;\n for (const el of doc.querySelectorAll('[data-kind]')) {\n items.push(newJumpListItem(el));\n }\n\n // Clicking on any of the links closes the dialog.\n for (const item of items) {\n item.link.addEventListener('click', function () {\n jumpDialog?.close();\n });\n }\n // Sort case-insensitively by identifier name.\n items.sort(function (a, b) {\n return a.lower.localeCompare(b.lower);\n });\n return items;\n}\n\n// newJumpListItem creates a new item for the DOM element el.\n// An item is an object with:\n// - name: the element's id (which is the identifer name)\n// - kind: the element's kind (function, variable, etc.),\n// - link: a link ('a' tag) to the element\n// - lower: the name in lower case, just for sorting\nfunction newJumpListItem(el: Element): JumpListItem {\n const a = document.createElement('a');\n const name = el.getAttribute('id');\n a.setAttribute('href', '#' + name);\n a.setAttribute('tabindex', '-1');\n const kind = el.getAttribute('data-kind');\n return {\n link: a,\n name: name ?? '',\n kind: kind ?? '',\n lower: name?.toLowerCase() ?? '', // for sorting\n };\n}\n\nlet lastFilterValue: string; // The last contents of the filter text box.\nlet activeJumpItem = -1; // The index of the currently active item in the list.\n\n// updateJumpList sets the elements of the dialog list to\n// everything whose name contains filter.\nfunction updateJumpList(filter: string) {\n lastFilterValue = filter;\n if (!jumpListItems) {\n jumpListItems = collectJumpListItems();\n }\n setActiveJumpItem(-1);\n\n // Remove all children from list.\n while (jumpList?.firstChild) {\n jumpList.firstChild.remove();\n }\n\n if (filter) {\n // A filter is set. We treat the filter as a substring that can appear in\n // an item name (case insensitive), and find the following matches - in\n // order of priority:\n //\n // 1. Exact matches (the filter matches the item's name exactly)\n // 2. Prefix matches (the item's name starts with filter)\n // 3. Infix matches (the filter is a substring of the item's name)\n const filterLowerCase = filter.toLowerCase();\n\n const exactMatches = [];\n const prefixMatches = [];\n const infixMatches = [];\n\n // makeLinkHtml creates the link name HTML for a list item. item is the DOM\n // item. item.name.substr(boldStart, boldEnd) will be bolded.\n const makeLinkHtml = (item: JumpListItem, boldStart: number, boldEnd: number) => {\n return (\n item.name.substring(0, boldStart) +\n '<b>' +\n item.name.substring(boldStart, boldEnd) +\n '</b>' +\n item.name.substring(boldEnd)\n );\n };\n\n for (const item of jumpListItems ?? []) {\n const nameLowerCase = item.name.toLowerCase();\n\n if (nameLowerCase === filterLowerCase) {\n item.link.innerHTML = makeLinkHtml(item, 0, item.name.length);\n exactMatches.push(item);\n } else if (nameLowerCase.startsWith(filterLowerCase)) {\n item.link.innerHTML = makeLinkHtml(item, 0, filter.length);\n prefixMatches.push(item);\n } else {\n const index = nameLowerCase.indexOf(filterLowerCase);\n if (index > -1) {\n item.link.innerHTML = makeLinkHtml(item, index, index + filter.length);\n infixMatches.push(item);\n }\n }\n }\n\n for (const item of exactMatches.concat(prefixMatches).concat(infixMatches)) {\n jumpList?.appendChild(item.link);\n }\n } else {\n if (!jumpListItems || jumpListItems.length === 0) {\n const msg = document.createElement('i');\n msg.innerHTML = 'No jump items found.';\n jumpList?.appendChild(msg);\n }\n // No filter set; display all items in their existing order.\n for (const item of jumpListItems ?? []) {\n item.link.innerHTML = item.name + ' <i>' + item.kind + '</i>';\n jumpList?.appendChild(item.link);\n }\n }\n\n if (jumpBody) {\n jumpBody.scrollTop = 0;\n }\n if (jumpListItems?.length && jumpList && jumpList.children.length > 0) {\n setActiveJumpItem(0);\n }\n}\n\n// Set the active jump item to n.\nfunction setActiveJumpItem(n: number) {\n const cs = jumpList?.children as HTMLCollectionOf<HTMLElement> | null | undefined;\n if (!cs || !jumpBody) {\n return;\n }\n if (activeJumpItem >= 0) {\n cs[activeJumpItem].classList.remove('JumpDialog-active');\n }\n if (n >= cs.length) {\n n = cs.length - 1;\n }\n if (n >= 0) {\n cs[n].classList.add('JumpDialog-active');\n\n // Scroll so the active item is visible.\n // For some reason cs[n].scrollIntoView() doesn't behave as I'd expect:\n // it moves the entire dialog box in the viewport.\n\n // Get the top and bottom of the active item relative to jumpBody.\n const activeTop = cs[n].offsetTop - cs[0].offsetTop;\n const activeBottom = activeTop + cs[n].clientHeight;\n if (activeTop < jumpBody.scrollTop) {\n // Off the top; scroll up.\n jumpBody.scrollTop = activeTop;\n } else if (activeBottom > jumpBody.scrollTop + jumpBody.clientHeight) {\n // Off the bottom; scroll down.\n jumpBody.scrollTop = activeBottom - jumpBody.clientHeight;\n }\n }\n activeJumpItem = n;\n}\n\n// Increment the activeJumpItem by delta.\nfunction incActiveJumpItem(delta: number) {\n if (activeJumpItem < 0) {\n return;\n }\n let n = activeJumpItem + delta;\n if (n < 0) {\n n = 0;\n }\n setActiveJumpItem(n);\n}\n\n// Pressing a key in the filter updates the list (if the filter actually changed).\njumpFilter?.addEventListener('keyup', function () {\n if (jumpFilter.value.toUpperCase() != lastFilterValue.toUpperCase()) {\n updateJumpList(jumpFilter.value);\n }\n});\n\n// Pressing enter in the filter selects the first element in the list.\njumpFilter?.addEventListener('keydown', function (event) {\n const upArrow = 38;\n const downArrow = 40;\n const enterKey = 13;\n switch (event.which) {\n case upArrow:\n incActiveJumpItem(-1);\n event.preventDefault();\n break;\n case downArrow:\n incActiveJumpItem(1);\n event.preventDefault();\n break;\n case enterKey:\n if (activeJumpItem >= 0) {\n if (jumpList) {\n (jumpList.children[activeJumpItem] as HTMLElement).click();\n }\n }\n break;\n }\n});\n\nconst shortcutsDialog = document.querySelector<HTMLDialogElement>('.ShortcutsDialog');\nif (shortcutsDialog && !shortcutsDialog.showModal) {\n loadPolyfill().then(({ default: dialogPolyfill }) => {\n dialogPolyfill.registerDialog(shortcutsDialog);\n });\n}\n\n// Keyboard shortcuts:\n// - Pressing '/' focuses the search box\n// - Pressing 'f' or 'F' opens the jump-to-identifier dialog.\n// - Pressing '?' opens up the shortcut dialog.\n// Ignore a keypress if a dialog is already open, or if it is pressed on a\n// component that wants to consume it.\ndocument.addEventListener('keypress', function (e) {\n if (jumpDialog?.open || shortcutsDialog?.open) {\n return;\n }\n const target = e.target as HTMLElement | null;\n const t = target?.tagName;\n if (t == 'INPUT' || t == 'SELECT' || t == 'TEXTAREA') {\n return;\n }\n if (target?.contentEditable == 'true') {\n return;\n }\n if (e.metaKey || e.ctrlKey) {\n return;\n }\n const ch = String.fromCharCode(e.which);\n switch (ch) {\n case 'f':\n case 'F':\n e.preventDefault();\n if (jumpFilter) {\n jumpFilter.value = '';\n }\n jumpDialog?.showModal();\n updateJumpList('');\n break;\n case '?':\n shortcutsDialog?.showModal();\n break;\n case '/':\n // Favoring the Firefox quick find feature over search input\n // focus. See: https://github.com/golang/go/issues/41093.\n if (searchInput && !window.navigator.userAgent.includes('Firefox')) {\n e.preventDefault();\n searchInput.focus();\n }\n break;\n }\n});\n\nconst jumpOutlineInput = document.querySelector('.js-jumpToInput');\nif (jumpOutlineInput) {\n jumpOutlineInput.addEventListener('click', () => {\n if (jumpFilter) {\n jumpFilter.value = '';\n }\n jumpDialog?.showModal();\n updateJumpList('');\n });\n}\n"],
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+ "sourcesContent": ["/*!\n * @license\n * Copyright 2019-2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n// This file implements the behavior of the \"jump to identifer\" dialog for Go\n// package documentation, as well as the simple dialog that displays keyboard\n// shortcuts.\n\n// The DOM for the dialogs is at the bottom of content/static/html/pages/pkg_doc.tmpl.\n// The CSS is in content/static/css/stylesheet.css.\n\n// The dialog is activated by pressing the 'f' key. It presents a list\n// (#JumpDialog-list) of all Go identifiers displayed in the documentation.\n// Entering text in the dialog's text box (#JumpDialog-filter) restricts the\n// list to identifiers containing the text. Clicking on an identifier jumps to\n// its documentation.\n\n// This code is based on\n// https://go.googlesource.com/gddo/+/refs/heads/master/gddo-server/assets/site.js.\n// It was modified to remove the dependence on jquery and bootstrap.\n\nconst jumpDialog = document.querySelector<HTMLDialogElement>('.JumpDialog');\nconst jumpBody = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-body');\nconst jumpList = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-list');\nconst jumpFilter = jumpDialog?.querySelector<HTMLInputElement>('.JumpDialog-input');\nconst searchInput = document.querySelector<HTMLInputElement>('.js-searchFocus');\nconst doc = document.querySelector<HTMLDivElement>('.js-documentation');\n\nfunction loadPolyfill() {\n return import(`${window.location.origin}/third_party/dialog-polyfill/dialog-polyfill.esm.js`);\n}\n\nif (jumpDialog && !jumpDialog.showModal) {\n loadPolyfill().then(({ default: dialogPolyfill }) => {\n dialogPolyfill.registerDialog(jumpDialog);\n });\n}\n\ninterface JumpListItem {\n link: HTMLAnchorElement;\n name: string;\n kind: string;\n lower: string;\n}\n\nlet jumpListItems: JumpListItem[] | undefined; // All the identifiers in the doc; computed only once.\n\n// collectJumpListItems returns a list of items, one for each identifier in the\n// documentation on the current page.\n//\n// It uses the data-kind attribute generated in the documentation HTML to find\n// the identifiers and their id attributes.\n//\n// If there are no data-kind attributes, then we have older doc; fall back to\n// a less precise method.\nfunction collectJumpListItems() {\n const items = [];\n if (!doc) return;\n for (const el of doc.querySelectorAll('[data-kind]')) {\n items.push(newJumpListItem(el));\n }\n\n // Clicking on any of the links closes the dialog.\n for (const item of items) {\n item.link.addEventListener('click', function () {\n jumpDialog?.close();\n });\n }\n // Sort case-insensitively by identifier name.\n items.sort(function (a, b) {\n return a.lower.localeCompare(b.lower);\n });\n return items;\n}\n\n// newJumpListItem creates a new item for the DOM element el.\n// An item is an object with:\n// - name: the element's id (which is the identifer name)\n// - kind: the element's kind (function, variable, etc.),\n// - link: a link ('a' tag) to the element\n// - lower: the name in lower case, just for sorting\nfunction newJumpListItem(el: Element): JumpListItem {\n const a = document.createElement('a');\n const name = el.getAttribute('id');\n a.setAttribute('href', '#' + name);\n a.setAttribute('tabindex', '-1');\n const kind = el.getAttribute('data-kind');\n return {\n link: a,\n name: name ?? '',\n kind: kind ?? '',\n lower: name?.toLowerCase() ?? '', // for sorting\n };\n}\n\nlet lastFilterValue: string; // The last contents of the filter text box.\nlet activeJumpItem = -1; // The index of the currently active item in the list.\n\n// updateJumpList sets the elements of the dialog list to\n// everything whose name contains filter.\nfunction updateJumpList(filter: string) {\n lastFilterValue = filter;\n if (!jumpListItems) {\n jumpListItems = collectJumpListItems();\n }\n setActiveJumpItem(-1);\n\n // Remove all children from list.\n while (jumpList?.firstChild) {\n jumpList.firstChild.remove();\n }\n\n if (filter) {\n // A filter is set. We treat the filter as a substring that can appear in\n // an item name (case insensitive), and find the following matches - in\n // order of priority:\n //\n // 1. Exact matches (the filter matches the item's name exactly)\n // 2. Prefix matches (the item's name starts with filter)\n // 3. Infix matches (the filter is a substring of the item's name)\n const filterLowerCase = filter.toLowerCase();\n\n const exactMatches = [];\n const prefixMatches = [];\n const infixMatches = [];\n\n // makeLinkHtml creates the link name HTML for a list item. item is the DOM\n // item. item.name.substr(boldStart, boldEnd) will be bolded.\n const makeLinkHtml = (item: JumpListItem, boldStart: number, boldEnd: number) => {\n return (\n item.name.substring(0, boldStart) +\n '<b>' +\n item.name.substring(boldStart, boldEnd) +\n '</b>' +\n item.name.substring(boldEnd)\n );\n };\n\n for (const item of jumpListItems ?? []) {\n const nameLowerCase = item.name.toLowerCase();\n\n if (nameLowerCase === filterLowerCase) {\n item.link.innerHTML = makeLinkHtml(item, 0, item.name.length);\n exactMatches.push(item);\n } else if (nameLowerCase.startsWith(filterLowerCase)) {\n item.link.innerHTML = makeLinkHtml(item, 0, filter.length);\n prefixMatches.push(item);\n } else {\n const index = nameLowerCase.indexOf(filterLowerCase);\n if (index > -1) {\n item.link.innerHTML = makeLinkHtml(item, index, index + filter.length);\n infixMatches.push(item);\n }\n }\n }\n\n for (const item of exactMatches.concat(prefixMatches).concat(infixMatches)) {\n jumpList?.appendChild(item.link);\n }\n } else {\n if (!jumpListItems || jumpListItems.length === 0) {\n const msg = document.createElement('i');\n msg.innerHTML = 'There are no identifiers on this page.';\n jumpList?.appendChild(msg);\n }\n // No filter set; display all items in their existing order.\n for (const item of jumpListItems ?? []) {\n item.link.innerHTML = item.name + ' <i>' + item.kind + '</i>';\n jumpList?.appendChild(item.link);\n }\n }\n\n if (jumpBody) {\n jumpBody.scrollTop = 0;\n }\n if (jumpListItems?.length && jumpList && jumpList.children.length > 0) {\n setActiveJumpItem(0);\n }\n}\n\n// Set the active jump item to n.\nfunction setActiveJumpItem(n: number) {\n const cs = jumpList?.children as HTMLCollectionOf<HTMLElement> | null | undefined;\n if (!cs || !jumpBody) {\n return;\n }\n if (activeJumpItem >= 0) {\n cs[activeJumpItem].classList.remove('JumpDialog-active');\n }\n if (n >= cs.length) {\n n = cs.length - 1;\n }\n if (n >= 0) {\n cs[n].classList.add('JumpDialog-active');\n\n // Scroll so the active item is visible.\n // For some reason cs[n].scrollIntoView() doesn't behave as I'd expect:\n // it moves the entire dialog box in the viewport.\n\n // Get the top and bottom of the active item relative to jumpBody.\n const activeTop = cs[n].offsetTop - cs[0].offsetTop;\n const activeBottom = activeTop + cs[n].clientHeight;\n if (activeTop < jumpBody.scrollTop) {\n // Off the top; scroll up.\n jumpBody.scrollTop = activeTop;\n } else if (activeBottom > jumpBody.scrollTop + jumpBody.clientHeight) {\n // Off the bottom; scroll down.\n jumpBody.scrollTop = activeBottom - jumpBody.clientHeight;\n }\n }\n activeJumpItem = n;\n}\n\n// Increment the activeJumpItem by delta.\nfunction incActiveJumpItem(delta: number) {\n if (activeJumpItem < 0) {\n return;\n }\n let n = activeJumpItem + delta;\n if (n < 0) {\n n = 0;\n }\n setActiveJumpItem(n);\n}\n\n// Pressing a key in the filter updates the list (if the filter actually changed).\njumpFilter?.addEventListener('keyup', function () {\n if (jumpFilter.value.toUpperCase() != lastFilterValue.toUpperCase()) {\n updateJumpList(jumpFilter.value);\n }\n});\n\n// Pressing enter in the filter selects the first element in the list.\njumpFilter?.addEventListener('keydown', function (event) {\n const upArrow = 38;\n const downArrow = 40;\n const enterKey = 13;\n switch (event.which) {\n case upArrow:\n incActiveJumpItem(-1);\n event.preventDefault();\n break;\n case downArrow:\n incActiveJumpItem(1);\n event.preventDefault();\n break;\n case enterKey:\n if (activeJumpItem >= 0) {\n if (jumpList) {\n (jumpList.children[activeJumpItem] as HTMLElement).click();\n }\n }\n break;\n }\n});\n\nconst shortcutsDialog = document.querySelector<HTMLDialogElement>('.ShortcutsDialog');\nif (shortcutsDialog && !shortcutsDialog.showModal) {\n loadPolyfill().then(({ default: dialogPolyfill }) => {\n dialogPolyfill.registerDialog(shortcutsDialog);\n });\n}\n\n// Keyboard shortcuts:\n// - Pressing '/' focuses the search box\n// - Pressing 'f' or 'F' opens the jump-to-identifier dialog.\n// - Pressing '?' opens up the shortcut dialog.\n// Ignore a keypress if a dialog is already open, or if it is pressed on a\n// component that wants to consume it.\ndocument.addEventListener('keypress', function (e) {\n if (jumpDialog?.open || shortcutsDialog?.open) {\n return;\n }\n const target = e.target as HTMLElement | null;\n const t = target?.tagName;\n if (t == 'INPUT' || t == 'SELECT' || t == 'TEXTAREA') {\n return;\n }\n if (target?.contentEditable == 'true') {\n return;\n }\n if (e.metaKey || e.ctrlKey) {\n return;\n }\n const ch = String.fromCharCode(e.which);\n switch (ch) {\n case 'f':\n case 'F':\n e.preventDefault();\n if (jumpFilter) {\n jumpFilter.value = '';\n }\n jumpDialog?.showModal();\n updateJumpList('');\n break;\n case '?':\n shortcutsDialog?.showModal();\n break;\n case '/':\n // Favoring the Firefox quick find feature over search input\n // focus. See: https://github.com/golang/go/issues/41093.\n if (searchInput && !window.navigator.userAgent.includes('Firefox')) {\n e.preventDefault();\n searchInput.focus();\n }\n break;\n }\n});\n\nconst jumpOutlineInput = document.querySelector('.js-jumpToInput');\nif (jumpOutlineInput) {\n jumpOutlineInput.addEventListener('click', () => {\n if (jumpFilter) {\n jumpFilter.value = '';\n }\n jumpDialog?.showModal();\n updateJumpList('');\n });\n}\n"],
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"names": []
}
diff --git a/content/static/js/jump.ts b/content/static/js/jump.ts
index 31cda93..aa2474f 100644
--- a/content/static/js/jump.ts
+++ b/content/static/js/jump.ts
@@ -163,7 +163,7 @@
} else {
if (!jumpListItems || jumpListItems.length === 0) {
const msg = document.createElement('i');
- msg.innerHTML = 'No jump items found.';
+ msg.innerHTML = 'There are no identifiers on this page.';
jumpList?.appendChild(msg);
}
// No filter set; display all items in their existing order.
