static: navigation bug fixes
- Fix spacing of submenu items by reducing line-height.
- Remove unneeded console.log statement
Change-Id: I57bf8e9dc25180ef4e55d1f5c8a85d2dd0688713
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/445995
Run-TryBot: Jamal Carvalho <jamal@golang.org>
TryBot-Result: kokoro <noreply+kokoro@google.com>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
diff --git a/static/frontend/frontend.js b/static/frontend/frontend.js
index 1dfc36a..b9f0c8a 100644
--- a/static/frontend/frontend.js
+++ b/static/frontend/frontend.js
@@ -1,4 +1,4 @@
-function q(){let t=document.querySelector(".js-header");document.querySelectorAll(".js-desktop-menu-hover").forEach(l=>{l.addEventListener("mouseenter",c=>{let m=c.target,s=document.querySelector(".forced-open");s&&s!==l&&(s.blur(),s.classList.remove("forced-open")),m.focus(),m.blur()});let r=c=>{var u,h;let m=c.target,s=m==null?void 0:m.classList.contains("forced-open"),o=c.currentTarget;s?(o.removeEventListener("blur",()=>o.classList.remove("forced-open")),o.classList.remove("forced-open"),o.classList.add("forced-closed"),o.blur(),(u=o==null?void 0:o.parentNode)==null||u.addEventListener("mouseout",()=>{o.classList.remove("forced-closed")})):(o.classList.remove("forced-closed"),o.classList.add("forced-open"),o.focus(),o.addEventListener("blur",()=>o.classList.remove("forced-open")),(h=o==null?void 0:o.parentNode)==null||h.removeEventListener("mouseout",()=>{o.classList.remove("forced-closed")}))};l.addEventListener("click",r)}),document.querySelectorAll(".Header-menuItem").forEach(l=>{l.addEventListener("keyup",r=>{var m;let c=r;c.key==="Escape"&&((m=c.target)==null||m.blur())})});let i=document.querySelectorAll(".js-headerMenuButton");i.forEach(l=>{l.addEventListener("click",r=>{r.preventDefault();let c=t==null?void 0:t.classList.contains("is-active");c?v(t):T(t),l.setAttribute("aria-expanded",c?"true":"false")})});let a=document.querySelector(".js-scrim");a==null||a.addEventListener("click",l=>{l.preventDefault(),document.querySelectorAll(".go-NavigationDrawer-submenuItem.is-active").forEach(c=>v(c)),v(t),i.forEach(c=>{c.setAttribute("aria-expanded",(t==null?void 0:t.classList.contains("is-active"))?"true":"false")})});let d=l=>{if(!l)return[];let r=Array.from(l.querySelectorAll(":scope > .go-NavigationDrawer-nav > .go-NavigationDrawer-list > .go-NavigationDrawer-listItem > a, :scope > .go-NavigationDrawer-nav > .go-NavigationDrawer-list > .go-NavigationDrawer-listItem > .go-Header-socialIcons > a")||[]);console.log(r);let c=l.querySelector(".go-NavigationDrawer-header > a");return c&&r.unshift(c),r},g=l=>{if(!!l)return l.classList.contains("go-NavigationDrawer-submenuItem")},v=l=>{var m,s;if(!l)return;let r=d(l);l.classList.remove("is-active");let c=(m=l.closest(".go-NavigationDrawer-listItem"))==null?void 0:m.querySelector(":scope > a");c==null||c.focus(),r==null||r.forEach(o=>o==null?void 0:o.setAttribute("tabindex","-1")),r&&r[0]&&(r[0].removeEventListener("keydown",p(l)),r[r.length-1].removeEventListener("keydown",L(l))),l===t&&i&&((s=i[0])==null||s.focus())},T=l=>{let r=d(l);l.classList.add("is-active"),r.forEach(c=>c.setAttribute("tabindex","0")),r[0].focus(),r[0].addEventListener("keydown",p(l)),r[r.length-1].addEventListener("keydown",L(l))},p=l=>r=>{r.key==="Tab"&&r.shiftKey&&(r.preventDefault(),v(l))},L=l=>r=>{r.key==="Tab"&&!r.shiftKey&&(r.preventDefault(),v(l))},y=l=>{var m;let r=g(l),c=d(l);l.addEventListener("keyup",s=>{s.key==="Escape"&&v(l)}),c.forEach(s=>{let o=s.closest("li");if(o&&o.classList.contains("js-mobile-subnav-trigger")){let u=o.querySelector(".go-NavigationDrawer-submenuItem");s.addEventListener("click",()=>{T(u)})}}),r&&(v(l),(m=l==null?void 0:l.querySelector(".go-NavigationDrawer-header"))==null||m.addEventListener("click",s=>{s.preventDefault(),v(l)}))};document.querySelectorAll(".go-NavigationDrawer").forEach(l=>y(l)),v(t)}function N(){let t=document.querySelector(".js-searchForm"),e=document.querySelector(".js-expandSearch"),n=t==null?void 0:t.querySelector("input"),i=document.querySelector(".js-headerLogo"),a=document.querySelector(".js-headerMenuButton");e==null||e.addEventListener("click",()=>{t==null||t.classList.add("go-SearchForm--expanded"),i==null||i.classList.add("go-Header-logo--hidden"),a==null||a.classList.add("go-Header-navOpen--hidden"),n==null||n.focus()}),document==null||document.addEventListener("click",d=>{(t==null?void 0:t.contains(d.target))||(t==null||t.classList.remove("go-SearchForm--expanded"),i==null||i.classList.remove("go-Header-logo--hidden"),a==null||a.classList.remove("go-Header-navOpen--hidden"))})}var k=class{constructor(e){this.el=e;this.setActive=e=>{this.activeIndex=(e+this.slides.length)%this.slides.length,this.el.setAttribute("data-slide-index",String(this.activeIndex));for(let n of this.dots)n.classList.remove("go-Carousel-dot--active");this.dots[this.activeIndex].classList.add("go-Carousel-dot--active");for(let n of this.slides)n.setAttribute("aria-hidden","true");this.slides[this.activeIndex].removeAttribute("aria-hidden"),this.liveRegion.textContent="Slide "+(this.activeIndex+1)+" of "+this.slides.length};var n;this.slides=Array.from(e.querySelectorAll(".go-Carousel-slide")),this.dots=[],this.liveRegion=document.createElement("div"),this.activeIndex=Number((n=e.getAttribute("data-slide-index"))!=null?n:0),this.initSlides(),this.initArrows(),this.initDots(),this.initLiveRegion()}initSlides(){for(let[e,n]of this.slides.entries())e!==this.activeIndex&&n.setAttribute("aria-hidden","true")}initArrows(){var n,i;let e=document.createElement("ul");e.classList.add("go-Carousel-arrows"),e.innerHTML=`
+function q(){let t=document.querySelector(".js-header");document.querySelectorAll(".js-desktop-menu-hover").forEach(l=>{l.addEventListener("mouseenter",c=>{let m=c.target,s=document.querySelector(".forced-open");s&&s!==l&&(s.blur(),s.classList.remove("forced-open")),m.focus(),m.blur()});let r=c=>{var u,h;let m=c.target,s=m==null?void 0:m.classList.contains("forced-open"),o=c.currentTarget;s?(o.removeEventListener("blur",()=>o.classList.remove("forced-open")),o.classList.remove("forced-open"),o.classList.add("forced-closed"),o.blur(),(u=o==null?void 0:o.parentNode)==null||u.addEventListener("mouseout",()=>{o.classList.remove("forced-closed")})):(o.classList.remove("forced-closed"),o.classList.add("forced-open"),o.focus(),o.addEventListener("blur",()=>o.classList.remove("forced-open")),(h=o==null?void 0:o.parentNode)==null||h.removeEventListener("mouseout",()=>{o.classList.remove("forced-closed")}))};l.addEventListener("click",r)}),document.querySelectorAll(".Header-menuItem").forEach(l=>{l.addEventListener("keyup",r=>{var m;let c=r;c.key==="Escape"&&((m=c.target)==null||m.blur())})});let i=document.querySelectorAll(".js-headerMenuButton");i.forEach(l=>{l.addEventListener("click",r=>{r.preventDefault();let c=t==null?void 0:t.classList.contains("is-active");c?v(t):T(t),l.setAttribute("aria-expanded",c?"true":"false")})});let a=document.querySelector(".js-scrim");a==null||a.addEventListener("click",l=>{l.preventDefault(),document.querySelectorAll(".go-NavigationDrawer-submenuItem.is-active").forEach(c=>v(c)),v(t),i.forEach(c=>{c.setAttribute("aria-expanded",(t==null?void 0:t.classList.contains("is-active"))?"true":"false")})});let d=l=>{if(!l)return[];let r=Array.from(l.querySelectorAll(":scope > .go-NavigationDrawer-nav > .go-NavigationDrawer-list > .go-NavigationDrawer-listItem > a, :scope > .go-NavigationDrawer-nav > .go-NavigationDrawer-list > .go-NavigationDrawer-listItem > .go-Header-socialIcons > a")||[]),c=l.querySelector(".go-NavigationDrawer-header > a");return c&&r.unshift(c),r},g=l=>{if(!!l)return l.classList.contains("go-NavigationDrawer-submenuItem")},v=l=>{var m,s;if(!l)return;let r=d(l);l.classList.remove("is-active");let c=(m=l.closest(".go-NavigationDrawer-listItem"))==null?void 0:m.querySelector(":scope > a");c==null||c.focus(),r==null||r.forEach(o=>o==null?void 0:o.setAttribute("tabindex","-1")),r&&r[0]&&(r[0].removeEventListener("keydown",p(l)),r[r.length-1].removeEventListener("keydown",L(l))),l===t&&i&&((s=i[0])==null||s.focus())},T=l=>{let r=d(l);l.classList.add("is-active"),r.forEach(c=>c.setAttribute("tabindex","0")),r[0].focus(),r[0].addEventListener("keydown",p(l)),r[r.length-1].addEventListener("keydown",L(l))},p=l=>r=>{r.key==="Tab"&&r.shiftKey&&(r.preventDefault(),v(l))},L=l=>r=>{r.key==="Tab"&&!r.shiftKey&&(r.preventDefault(),v(l))},y=l=>{var m;let r=g(l),c=d(l);l.addEventListener("keyup",s=>{s.key==="Escape"&&v(l)}),c.forEach(s=>{let o=s.closest("li");if(o&&o.classList.contains("js-mobile-subnav-trigger")){let u=o.querySelector(".go-NavigationDrawer-submenuItem");s.addEventListener("click",()=>{T(u)})}}),r&&(v(l),(m=l==null?void 0:l.querySelector(".go-NavigationDrawer-header"))==null||m.addEventListener("click",s=>{s.preventDefault(),v(l)}))};document.querySelectorAll(".go-NavigationDrawer").forEach(l=>y(l)),v(t)}function N(){let t=document.querySelector(".js-searchForm"),e=document.querySelector(".js-expandSearch"),n=t==null?void 0:t.querySelector("input"),i=document.querySelector(".js-headerLogo"),a=document.querySelector(".js-headerMenuButton");e==null||e.addEventListener("click",()=>{t==null||t.classList.add("go-SearchForm--expanded"),i==null||i.classList.add("go-Header-logo--hidden"),a==null||a.classList.add("go-Header-navOpen--hidden"),n==null||n.focus()}),document==null||document.addEventListener("click",d=>{(t==null?void 0:t.contains(d.target))||(t==null||t.classList.remove("go-SearchForm--expanded"),i==null||i.classList.remove("go-Header-logo--hidden"),a==null||a.classList.remove("go-Header-navOpen--hidden"))})}var k=class{constructor(e){this.el=e;this.setActive=e=>{this.activeIndex=(e+this.slides.length)%this.slides.length,this.el.setAttribute("data-slide-index",String(this.activeIndex));for(let n of this.dots)n.classList.remove("go-Carousel-dot--active");this.dots[this.activeIndex].classList.add("go-Carousel-dot--active");for(let n of this.slides)n.setAttribute("aria-hidden","true");this.slides[this.activeIndex].removeAttribute("aria-hidden"),this.liveRegion.textContent="Slide "+(this.activeIndex+1)+" of "+this.slides.length};var n;this.slides=Array.from(e.querySelectorAll(".go-Carousel-slide")),this.dots=[],this.liveRegion=document.createElement("div"),this.activeIndex=Number((n=e.getAttribute("data-slide-index"))!=null?n:0),this.initSlides(),this.initArrows(),this.initDots(),this.initLiveRegion()}initSlides(){for(let[e,n]of this.slides.entries())e!==this.activeIndex&&n.setAttribute("aria-hidden","true")}initArrows(){var n,i;let e=document.createElement("ul");e.classList.add("go-Carousel-arrows"),e.innerHTML=`
<li>
<button class="go-Carousel-prevSlide" aria-label="Go to previous slide">
<img class="go-Icon" height="24" width="24" src="/static/shared/icon/arrow_left_gm_grey_24dp.svg" alt="">
diff --git a/static/frontend/frontend.js.map b/static/frontend/frontend.js.map
index 886199e..960f501 100644
--- a/static/frontend/frontend.js.map
+++ b/static/frontend/frontend.js.map
@@ -1,7 +1,7 @@
{
"version": 3,
"sources": ["../shared/header/header.ts", "../shared/carousel/carousel.ts", "../shared/clipboard/clipboard.ts", "../shared/tooltip/tooltip.ts", "../shared/outline/select.ts", "../shared/modal/modal.ts", "../shared/analytics/analytics.ts", "../shared/keyboard/keyboard.ts", "../shared/jump/jump.ts", "frontend.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\nexport function registerHeaderListeners(): void {\n const header = document.querySelector('.js-header') as HTMLElement;\n\n // Desktop menu hover state\n const menuItemHovers = document.querySelectorAll('.js-desktop-menu-hover');\n menuItemHovers.forEach(menuItemHover => {\n // when user clicks on the dropdown menu item on desktop or mobile,\n // force the menu to stay open until the user clicks off of it.\n menuItemHover.addEventListener('mouseenter', e => {\n const target = e.target as HTMLElement;\n const forced = document.querySelector('.forced-open') as HTMLElement;\n if (forced && forced !== menuItemHover) {\n forced.blur();\n forced.classList.remove('forced-open');\n }\n // prevents menus that have been tabbed into from staying open\n // when you hover over another menu\n target.focus();\n target.blur();\n });\n\n const toggleForcedOpen = (e: Event) => {\n const target = e.target as HTMLElement;\n const isForced = target?.classList.contains('forced-open');\n const currentTarget = e.currentTarget as HTMLElement;\n if (isForced) {\n currentTarget.removeEventListener('blur', () =>\n currentTarget.classList.remove('forced-open')\n );\n currentTarget.classList.remove('forced-open');\n currentTarget.classList.add('forced-closed');\n currentTarget.blur();\n currentTarget?.parentNode?.addEventListener('mouseout', () => {\n currentTarget.classList.remove('forced-closed');\n });\n } else {\n currentTarget.classList.remove('forced-closed');\n currentTarget.classList.add('forced-open');\n currentTarget.focus();\n currentTarget.addEventListener('blur', () => currentTarget.classList.remove('forced-open'));\n currentTarget?.parentNode?.removeEventListener('mouseout', () => {\n currentTarget.classList.remove('forced-closed');\n });\n }\n };\n menuItemHover.addEventListener('click', toggleForcedOpen);\n });\n\n // ensure desktop submenus are closed when esc is pressed\n const headerItems = document.querySelectorAll('.Header-menuItem');\n headerItems.forEach(header => {\n header.addEventListener('keyup', e => {\n const event = e as KeyboardEvent;\n if (event.key === 'Escape') {\n (event.target as HTMLElement)?.blur();\n }\n });\n });\n\n // Mobile menu subnav menus\n const headerbuttons = document.querySelectorAll('.js-headerMenuButton');\n headerbuttons.forEach(button => {\n button.addEventListener('click', e => {\n e.preventDefault();\n const isActive = header?.classList.contains('is-active');\n if (isActive) {\n handleNavigationDrawerInactive(header);\n } else {\n handleNavigationDrawerActive(header);\n }\n button.setAttribute('aria-expanded', isActive ? 'true' : 'false');\n });\n });\n\n const scrim = document.querySelector('.js-scrim');\n scrim?.addEventListener('click', e => {\n e.preventDefault();\n\n // find any active submenus and close them\n const activeSubnavs = document.querySelectorAll('.go-NavigationDrawer-submenuItem.is-active');\n activeSubnavs.forEach(subnav => handleNavigationDrawerInactive(subnav as HTMLElement));\n\n handleNavigationDrawerInactive(header);\n\n headerbuttons.forEach(button => {\n button.setAttribute(\n 'aria-expanded',\n header?.classList.contains('is-active') ? 'true' : 'false'\n );\n });\n });\n\n const getNavigationDrawerMenuItems = (navigationDrawer: HTMLElement): HTMLElement[] => {\n if (!navigationDrawer) {\n return [];\n }\n\n const menuItems = Array.from(\n navigationDrawer.querySelectorAll(\n ':scope > .go-NavigationDrawer-nav > .go-NavigationDrawer-list > .go-NavigationDrawer-listItem > a, :scope > .go-NavigationDrawer-nav > .go-NavigationDrawer-list > .go-NavigationDrawer-listItem > .go-Header-socialIcons > a'\n ) || []\n );\n console.log(menuItems);\n\n const anchorEl = navigationDrawer.querySelector('.go-NavigationDrawer-header > a');\n if (anchorEl) {\n menuItems.unshift(anchorEl);\n }\n return menuItems as HTMLElement[];\n };\n\n const getNavigationDrawerIsSubnav = (navigationDrawer: HTMLElement) => {\n if (!navigationDrawer) {\n return;\n }\n return navigationDrawer.classList.contains('go-NavigationDrawer-submenuItem');\n };\n\n const handleNavigationDrawerInactive = (navigationDrawer: HTMLElement) => {\n if (!navigationDrawer) {\n return;\n }\n const menuItems = getNavigationDrawerMenuItems(navigationDrawer);\n navigationDrawer.classList.remove('is-active');\n const parentMenuItem = navigationDrawer\n .closest('.go-NavigationDrawer-listItem')\n ?.querySelector(':scope > a') as HTMLElement;\n parentMenuItem?.focus();\n menuItems?.forEach(item => item?.setAttribute('tabindex', '-1'));\n if (menuItems && menuItems[0]) {\n menuItems[0].removeEventListener('keydown', handleMenuItemTabLeftFactory(navigationDrawer));\n menuItems[menuItems.length - 1].removeEventListener(\n 'keydown',\n handleMenuItemTabRightFactory(navigationDrawer)\n );\n }\n\n if (navigationDrawer === header) {\n headerbuttons && (headerbuttons[0] as HTMLElement)?.focus();\n }\n };\n\n const handleNavigationDrawerActive = (navigationDrawer: HTMLElement) => {\n const menuItems = getNavigationDrawerMenuItems(navigationDrawer);\n\n navigationDrawer.classList.add('is-active');\n menuItems.forEach(item => item.setAttribute('tabindex', '0'));\n menuItems[0].focus();\n\n menuItems[0].addEventListener('keydown', handleMenuItemTabLeftFactory(navigationDrawer));\n menuItems[menuItems.length - 1].addEventListener(\n 'keydown',\n handleMenuItemTabRightFactory(navigationDrawer)\n );\n };\n\n const handleMenuItemTabLeftFactory = (navigationDrawer: HTMLElement) => {\n return (e: KeyboardEvent) => {\n if (e.key === 'Tab' && e.shiftKey) {\n e.preventDefault();\n handleNavigationDrawerInactive(navigationDrawer);\n }\n };\n };\n\n const handleMenuItemTabRightFactory = (navigationDrawer: HTMLElement) => {\n return (e: KeyboardEvent) => {\n if (e.key === 'Tab' && !e.shiftKey) {\n e.preventDefault();\n handleNavigationDrawerInactive(navigationDrawer);\n }\n };\n };\n\n const prepMobileNavigationDrawer = (navigationDrawer: HTMLElement) => {\n const isSubnav = getNavigationDrawerIsSubnav(navigationDrawer);\n const menuItems = getNavigationDrawerMenuItems(navigationDrawer);\n navigationDrawer.addEventListener('keyup', e => {\n if (e.key === 'Escape') {\n handleNavigationDrawerInactive(navigationDrawer);\n }\n });\n\n menuItems.forEach(item => {\n const parentLi = item.closest('li');\n if (parentLi && parentLi.classList.contains('js-mobile-subnav-trigger')) {\n const submenu = parentLi.querySelector('.go-NavigationDrawer-submenuItem') as HTMLElement;\n item.addEventListener('click', () => {\n handleNavigationDrawerActive(submenu);\n });\n }\n });\n if (isSubnav) {\n handleNavigationDrawerInactive(navigationDrawer);\n navigationDrawer\n ?.querySelector('.go-NavigationDrawer-header')\n ?.addEventListener('click', e => {\n e.preventDefault();\n handleNavigationDrawerInactive(navigationDrawer);\n });\n }\n };\n\n document\n .querySelectorAll('.go-NavigationDrawer')\n .forEach(drawer => prepMobileNavigationDrawer(drawer as HTMLElement));\n\n handleNavigationDrawerInactive(header);\n}\n\nexport function registerSearchFormListeners(): void {\n const searchForm = document.querySelector('.js-searchForm');\n const expandSearch = document.querySelector('.js-expandSearch');\n const input = searchForm?.querySelector('input');\n const headerLogo = document.querySelector('.js-headerLogo');\n const menuButton = document.querySelector('.js-headerMenuButton');\n expandSearch?.addEventListener('click', () => {\n searchForm?.classList.add('go-SearchForm--expanded');\n headerLogo?.classList.add('go-Header-logo--hidden');\n menuButton?.classList.add('go-Header-navOpen--hidden');\n input?.focus();\n });\n document?.addEventListener('click', e => {\n if (!searchForm?.contains(e.target as Node)) {\n searchForm?.classList.remove('go-SearchForm--expanded');\n headerLogo?.classList.remove('go-Header-logo--hidden');\n menuButton?.classList.remove('go-Header-navOpen--hidden');\n }\n });\n}\n", "/**\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 * Carousel Controller adds event listeners, accessibility enhancements, and\n * control elements to a carousel component.\n */\nexport class CarouselController {\n /**\n * slides is a collection of slides in the carousel.\n */\n private slides: HTMLLIElement[];\n /**\n * dots is a collection of dot navigation controls, added to the carousel\n * by this controller.\n */\n private dots: HTMLElement[];\n /**\n * liveRegion is a visually hidden element that notifies assitive devices\n * of visual changes to the carousel. They are added to the carousel by\n * this controller.\n */\n private liveRegion: HTMLElement;\n /**\n * activeIndex is the 0-index of the currently active slide.\n */\n private activeIndex: number;\n\n constructor(private el: HTMLElement) {\n this.slides = Array.from(el.querySelectorAll('.go-Carousel-slide'));\n this.dots = [];\n this.liveRegion = document.createElement('div');\n this.activeIndex = Number(el.getAttribute('data-slide-index') ?? 0);\n\n this.initSlides();\n this.initArrows();\n this.initDots();\n this.initLiveRegion();\n }\n\n private initSlides() {\n for (const [i, v] of this.slides.entries()) {\n if (i === this.activeIndex) continue;\n v.setAttribute('aria-hidden', 'true');\n }\n }\n\n private initArrows() {\n const arrows = document.createElement('ul');\n arrows.classList.add('go-Carousel-arrows');\n arrows.innerHTML = `\n <li>\n <button class=\"go-Carousel-prevSlide\" aria-label=\"Go to previous slide\">\n <img class=\"go-Icon\" height=\"24\" width=\"24\" src=\"/static/shared/icon/arrow_left_gm_grey_24dp.svg\" alt=\"\">\n </button>\n </li>\n <li>\n <button class=\"go-Carousel-nextSlide\" aria-label=\"Go to next slide\">\n <img class=\"go-Icon\" height=\"24\" width=\"24\" src=\"/static/shared/icon/arrow_right_gm_grey_24dp.svg\" alt=\"\">\n </button>\n </li>\n `;\n arrows\n .querySelector('.go-Carousel-prevSlide')\n ?.addEventListener('click', () => this.setActive(this.activeIndex - 1));\n arrows\n .querySelector('.go-Carousel-nextSlide')\n ?.addEventListener('click', () => this.setActive(this.activeIndex + 1));\n this.el.append(arrows);\n }\n\n private initDots() {\n const dots = document.createElement('ul');\n dots.classList.add('go-Carousel-dots');\n for (let i = 0; i < this.slides.length; i++) {\n const li = document.createElement('li');\n const button = document.createElement('button');\n button.classList.add('go-Carousel-dot');\n if (i === this.activeIndex) {\n button.classList.add('go-Carousel-dot--active');\n }\n button.innerHTML = `<span class=\"go-Carousel-obscured\">Slide ${i + 1}</span>`;\n button.addEventListener('click', () => this.setActive(i));\n li.append(button);\n dots.append(li);\n this.dots.push(button);\n }\n this.el.append(dots);\n }\n\n private initLiveRegion() {\n this.liveRegion.setAttribute('aria-live', 'polite');\n this.liveRegion.setAttribute('aria-atomic', 'true');\n this.liveRegion.setAttribute('class', 'go-Carousel-obscured');\n this.liveRegion.textContent = `Slide ${this.activeIndex + 1} of ${this.slides.length}`;\n this.el.appendChild(this.liveRegion);\n }\n\n private setActive = (index: number) => {\n this.activeIndex = (index + this.slides.length) % this.slides.length;\n this.el.setAttribute('data-slide-index', String(this.activeIndex));\n for (const d of this.dots) {\n d.classList.remove('go-Carousel-dot--active');\n }\n this.dots[this.activeIndex].classList.add('go-Carousel-dot--active');\n for (const s of this.slides) {\n s.setAttribute('aria-hidden', 'true');\n }\n this.slides[this.activeIndex].removeAttribute('aria-hidden');\n this.liveRegion.textContent = 'Slide ' + (this.activeIndex + 1) + ' of ' + this.slides.length;\n };\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * This class decorates an element to copy arbitrary data attached via a data-\n * attribute to the clipboard.\n */\nexport class ClipboardController {\n /**\n * The data to be copied to the clipboard.\n */\n private data: string;\n\n /**\n * @param el The element that will trigger copying text to the clipboard. The text is\n * expected to be within its data-to-copy attribute.\n */\n constructor(private el: HTMLButtonElement) {\n this.data = el.dataset['toCopy'] ?? el.innerText;\n // if data-to-copy is empty and the button is part of an input group\n // capture the value of the input.\n if (!this.data && el.parentElement?.classList.contains('go-InputGroup')) {\n this.data = (this.data || el.parentElement?.querySelector('input')?.value) ?? '';\n }\n el.addEventListener('click', e => this.handleCopyClick(e));\n }\n\n /**\n * Handles when the primary element is clicked.\n */\n handleCopyClick(e: MouseEvent): void {\n e.preventDefault();\n const TOOLTIP_SHOW_DURATION_MS = 1000;\n\n // This API is not available on iOS.\n if (!navigator.clipboard) {\n this.showTooltipText('Unable to copy', TOOLTIP_SHOW_DURATION_MS);\n return;\n }\n navigator.clipboard\n .writeText(this.data)\n .then(() => {\n this.showTooltipText('Copied!', TOOLTIP_SHOW_DURATION_MS);\n })\n .catch(() => {\n this.showTooltipText('Unable to copy', TOOLTIP_SHOW_DURATION_MS);\n });\n }\n\n /**\n * Shows the given text in a tooltip for a specified amount of time, in milliseconds.\n */\n showTooltipText(text: string, durationMs: number): void {\n this.el.setAttribute('data-tooltip', text);\n setTimeout(() => this.el.setAttribute('data-tooltip', ''), durationMs);\n }\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * ToolTipController handles closing tooltips on external clicks.\n */\nexport class ToolTipController {\n constructor(private el: HTMLDetailsElement) {\n document.addEventListener('click', e => {\n const insideTooltip = this.el.contains(e.target as Element);\n if (!insideTooltip) {\n this.el.removeAttribute('open');\n }\n });\n }\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { TreeNavController } from './tree.js';\n\nexport class SelectNavController {\n constructor(private el: Element) {\n this.el.addEventListener('change', e => {\n const target = e.target as HTMLSelectElement;\n let href = target.value;\n if (!target.value.startsWith('/')) {\n href = '/' + href;\n }\n window.location.href = href;\n });\n }\n}\n\nexport function makeSelectNav(tree: TreeNavController): HTMLLabelElement {\n const label = document.createElement('label');\n label.classList.add('go-Label');\n label.setAttribute('aria-label', 'Menu');\n const select = document.createElement('select');\n select.classList.add('go-Select', 'js-selectNav');\n label.appendChild(select);\n const outline = document.createElement('optgroup');\n outline.label = 'Outline';\n select.appendChild(outline);\n const groupMap: Record<string, HTMLOptGroupElement> = {};\n let group: HTMLOptGroupElement;\n for (const t of tree.treeitems) {\n if (Number(t.depth) > 4) continue;\n if (t.groupTreeitem) {\n group = groupMap[t.groupTreeitem.label];\n if (!group) {\n group = groupMap[t.groupTreeitem.label] = document.createElement('optgroup');\n group.label = t.groupTreeitem.label;\n select.appendChild(group);\n }\n } else {\n group = outline;\n }\n const o = document.createElement('option');\n o.label = t.label;\n o.textContent = t.label;\n o.value = (t.el as HTMLAnchorElement).href.replace(window.location.origin, '').replace('/', '');\n group.appendChild(o);\n }\n tree.addObserver(t => {\n const hash = (t.el as HTMLAnchorElement).hash;\n const value = select.querySelector<HTMLOptionElement>(`[value$=\"${hash}\"]`)?.value;\n if (value) {\n select.value = value;\n }\n }, 50);\n return label;\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\ninterface Window {\n dialogPolyfill?: {\n registerDialog: (el: HTMLDialogElement) => void;\n };\n}\n\ndeclare const window: Window;\n\n/**\n * ModalController registers a dialog element with the polyfill if\n * necessary for the current browser, add adds event listeners to\n * close and open modals.\n */\nexport class ModalController {\n constructor(private el: HTMLDialogElement) {\n if (window.dialogPolyfill) {\n window.dialogPolyfill.registerDialog(el);\n }\n this.init();\n }\n\n init() {\n const button = document.querySelector<HTMLButtonElement>(`[aria-controls=\"${this.el.id}\"]`);\n if (button) {\n button.addEventListener('click', () => {\n if (this.el.showModal) {\n this.el.showModal();\n } else {\n this.el.setAttribute('opened', 'true');\n }\n this.el.querySelector('input')?.focus();\n });\n }\n for (const btn of this.el.querySelectorAll<HTMLButtonElement>('[data-modal-close]')) {\n btn.addEventListener('click', () => {\n if (this.el.close) {\n this.el.close();\n } else {\n this.el.removeAttribute('opened');\n }\n });\n }\n }\n}\n", "interface TagManagerEvent {\n /**\n * event is the name of the event, used to filter events in\n * Google Analytics.\n */\n event: string;\n\n /**\n * event_category is a name that you supply as a way to group objects\n * that to analyze. Typically, you will use the same category name\n * multiple times over related UI elements (buttons, links, etc).\n */\n event_category?: string;\n\n /**\n * event_action is used to name the type of event or interaction you\n * want to measure for a particular web object. For example, with a\n * single \"form\" category, you can analyze a number of specific events\n * with this parameter, such as: form entered, form submitted.\n */\n event_action?: string;\n\n /**\n * event_label provide additional information for events that you want\n * to analyze, such as the text label of a link.\n */\n event_label?: string;\n\n /**\n * gtm.start is used to initialize Google Tag Manager.\n */\n 'gtm.start'?: number;\n}\n\n// eslint-disable-next-line @typescript-eslint/no-unused-vars\ndeclare global {\n interface Window {\n dataLayer?: (TagManagerEvent | VoidFunction)[];\n ga?: unknown;\n }\n}\n\n/**\n * track sends events to Google Tag Manager.\n */\nexport function track(\n event: string | TagManagerEvent,\n category?: string,\n action?: string,\n label?: string\n): void {\n window.dataLayer ??= [];\n if (typeof event === 'string') {\n window.dataLayer.push({\n event,\n event_category: category,\n event_action: action,\n event_label: label,\n });\n } else {\n window.dataLayer.push(event);\n }\n}\n\n/**\n * func adds functions to run sequentionally after\n * Google Tag Manager is ready.\n */\nexport function func(fn: () => void): void {\n window.dataLayer ??= [];\n window.dataLayer.push(fn);\n}\n", "/*!\n * @license\n * Copyright 2019-2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { track } from '../analytics/analytics';\n\n/**\n * Options are keyhandler callback options.\n */\ninterface Options {\n /**\n * target is the element the key event should filter on. The\n * default target is the document.\n */\n target?: Element;\n\n /**\n * withMeta specifies if the event callback should fire when\n * the key is pressed with a meta key (ctrl, alt, etc). By\n * default meta keypresses are ignored.\n */\n withMeta?: boolean;\n}\n\n/**\n * KeyHandler is the config for a keyboard event callback.\n */\ninterface KeyHandler extends Options {\n description: string;\n callback: (e: KeyboardEvent) => void;\n}\n\n/**\n * KeyboardController controls event callbacks for sitewide\n * keyboard events. Multiple callbacks can be registered for\n * a single key and by default the controller ignores events\n * for text input targets.\n */\nclass KeyboardController {\n handlers: Record<string, Set<KeyHandler>>;\n\n constructor() {\n this.handlers = {};\n document.addEventListener('keydown', e => this.handleKeyPress(e));\n }\n\n /**\n * on registers keyboard event callbacks.\n * @param key the key to register.\n * @param description name of the event.\n * @param callback event callback.\n * @param options set target and withMeta options to override the default behaviors.\n */\n on(key: string, description: string, callback: (e: KeyboardEvent) => void, options?: Options) {\n this.handlers[key] ??= new Set();\n this.handlers[key].add({ description, callback, ...options });\n return this;\n }\n\n private handleKeyPress(e: KeyboardEvent) {\n for (const handler of this.handlers[e.key.toLowerCase()] ?? new Set()) {\n if (handler.target && handler.target !== e.target) {\n return;\n }\n const t = e.target as HTMLElement | null;\n if (\n !handler.target &&\n (t?.tagName === 'INPUT' || t?.tagName === 'SELECT' || t?.tagName === 'TEXTAREA')\n ) {\n return;\n }\n if (t?.isContentEditable) {\n return;\n }\n if (\n (handler.withMeta && !(e.ctrlKey || e.metaKey)) ||\n (!handler.withMeta && (e.ctrlKey || e.metaKey))\n ) {\n return;\n }\n track('keypress', 'hotkeys', `${e.key} pressed`, handler.description);\n handler.callback(e);\n }\n }\n}\n\nexport const keyboard = new KeyboardController();\n", "/*!\n * @license\n * Copyright 2019-2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n// This file implements the behavior of the \"jump to symbol\" dialog for Go\n// package documentation, as well as the simple dialog that displays keyboard\n// shortcuts.\n\n// The DOM for the dialogs is at the bottom of static/frontend/unit/main/_modals.tmpl.\n// The CSS is in static/frontend/unit/main/_modals.css.\n\n// The dialog is activated by pressing the 'f' key. It presents a list\n// (#JumpDialog-list) of all Go symbols displayed in the documentation.\n// Entering text in the dialog's text box (#JumpDialog-filter) restricts the\n// list to symbols containing the text. Clicking on an symbol jumps to\n// its documentation.\n\n// This code is based on\n// https://go.googlesource.com/gddo/+/refs/heads/master/gddo-server/assets/site.js.\n// It was modified to remove the dependence on jquery and bootstrap.\n\nimport { keyboard } from '../keyboard/keyboard';\n\nexport function initModals(): void {\n const jumpDialog = document.querySelector<HTMLDialogElement>('.JumpDialog');\n const jumpBody = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-body');\n const jumpList = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-list');\n const jumpFilter = jumpDialog?.querySelector<HTMLInputElement>('.JumpDialog-input');\n const doc = document.querySelector<HTMLDivElement>('.js-documentation');\n\n interface JumpListItem {\n link: HTMLAnchorElement;\n name: string;\n kind: string;\n lower: string;\n }\n\n let jumpListItems: JumpListItem[] | undefined; // All the symbols in the doc; computed only once.\n\n // collectJumpListItems returns a list of items, one for each symbol in the\n // documentation on the current page.\n //\n // It uses the data-kind attribute generated in the documentation HTML to find\n // the symbols and their id attributes.\n //\n // If there are no data-kind attributes, then we have older doc; fall back to\n // a less precise method.\n function collectJumpListItems() {\n const items = [];\n if (!doc) return;\n for (const el of doc.querySelectorAll('[data-kind]')) {\n items.push(newJumpListItem(el));\n }\n\n // Clicking on any of the links closes the dialog.\n for (const item of items) {\n item.link.addEventListener('click', function () {\n jumpDialog?.close();\n });\n }\n // Sort case-insensitively by symbol name.\n items.sort(function (a, b) {\n return a.lower.localeCompare(b.lower);\n });\n return items;\n }\n\n // newJumpListItem creates a new item for the DOM element el.\n // An item is an object with:\n // - name: the element's id (which is the symbol name)\n // - kind: the element's kind (function, variable, etc.),\n // - link: a link ('a' tag) to the element\n // - lower: the name in lower case, just for sorting\n function newJumpListItem(el: Element): JumpListItem {\n const a = document.createElement('a');\n const name = el.getAttribute('id');\n a.setAttribute('href', '#' + name);\n a.setAttribute('tabindex', '-1');\n a.setAttribute('data-gtmc', 'jump to link');\n const kind = el.getAttribute('data-kind');\n return {\n link: a,\n name: name ?? '',\n kind: kind ?? '',\n lower: name?.toLowerCase() ?? '', // for sorting\n };\n }\n\n let lastFilterValue: string; // The last contents of the filter text box.\n let 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.\n function updateJumpList(filter: string) {\n lastFilterValue = filter;\n if (!jumpListItems) {\n jumpListItems = collectJumpListItems();\n }\n setActiveJumpItem(-1);\n\n // Remove all children from list.\n while (jumpList?.firstChild) {\n jumpList.firstChild.remove();\n }\n\n if (filter) {\n // A filter is set. We treat the filter as a substring that can appear in\n // an item name (case insensitive), and find the following matches - in\n // order of priority:\n //\n // 1. Exact matches (the filter matches the item's name exactly)\n // 2. Prefix matches (the item's name starts with filter)\n // 3. Infix matches (the filter is a substring of the item's name)\n const filterLowerCase = filter.toLowerCase();\n\n const exactMatches = [];\n const prefixMatches = [];\n const infixMatches = [];\n\n // makeLinkHtml creates the link name HTML for a list item. item is the DOM\n // item. item.name.substr(boldStart, boldEnd) will be bolded.\n const makeLinkHtml = (item: JumpListItem, boldStart: number, boldEnd: number) => {\n return (\n item.name.substring(0, boldStart) +\n '<b>' +\n item.name.substring(boldStart, boldEnd) +\n '</b>' +\n item.name.substring(boldEnd)\n );\n };\n\n for (const item of jumpListItems ?? []) {\n const nameLowerCase = item.name.toLowerCase();\n\n if (nameLowerCase === filterLowerCase) {\n item.link.innerHTML = makeLinkHtml(item, 0, item.name.length);\n exactMatches.push(item);\n } else if (nameLowerCase.startsWith(filterLowerCase)) {\n item.link.innerHTML = makeLinkHtml(item, 0, filter.length);\n prefixMatches.push(item);\n } else {\n const index = nameLowerCase.indexOf(filterLowerCase);\n if (index > -1) {\n item.link.innerHTML = makeLinkHtml(item, index, index + filter.length);\n infixMatches.push(item);\n }\n }\n }\n\n for (const item of exactMatches.concat(prefixMatches).concat(infixMatches)) {\n jumpList?.appendChild(item.link);\n }\n } else {\n if (!jumpListItems || jumpListItems.length === 0) {\n const msg = document.createElement('i');\n msg.innerHTML = 'There are no symbols on this page.';\n jumpList?.appendChild(msg);\n }\n // No filter set; display all items in their existing order.\n for (const item of jumpListItems ?? []) {\n item.link.innerHTML = item.name + ' <i>' + item.kind + '</i>';\n jumpList?.appendChild(item.link);\n }\n }\n\n if (jumpBody) {\n jumpBody.scrollTop = 0;\n }\n if (jumpListItems?.length && jumpList && jumpList.children.length > 0) {\n setActiveJumpItem(0);\n }\n }\n\n // Set the active jump item to n.\n function 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.\n function 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).\n jumpFilter?.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.\n jumpFilter?.addEventListener('keydown', function (event) {\n const upArrow = 38;\n const downArrow = 40;\n const enterKey = 13;\n switch (event.which) {\n case upArrow:\n incActiveJumpItem(-1);\n event.preventDefault();\n break;\n case downArrow:\n incActiveJumpItem(1);\n event.preventDefault();\n break;\n case enterKey:\n if (activeJumpItem >= 0) {\n if (jumpList) {\n (jumpList.children[activeJumpItem] as HTMLElement).click();\n event.preventDefault();\n }\n }\n break;\n }\n });\n\n const shortcutsDialog = document.querySelector<HTMLDialogElement>('.ShortcutsDialog');\n\n // - Pressing 'f' or 'F' opens the jump-to-symbol dialog.\n // - Pressing '?' opens up the shortcut dialog.\n // Ignore a keypress if a dialog is already open, or if it is pressed on a\n // component that wants to consume it.\n keyboard\n .on('f', 'open jump to modal', e => {\n if (jumpDialog?.open || shortcutsDialog?.open) {\n return;\n }\n e.preventDefault();\n if (jumpFilter) {\n jumpFilter.value = '';\n }\n jumpDialog?.showModal?.();\n jumpFilter?.focus();\n updateJumpList('');\n })\n .on('?', 'open shortcuts modal', () => {\n if (jumpDialog?.open || shortcutsDialog?.open) {\n return;\n }\n shortcutsDialog?.showModal?.();\n });\n\n const jumpOutlineInput = document.querySelector('.js-jumpToInput');\n if (jumpOutlineInput) {\n jumpOutlineInput.addEventListener('click', () => {\n if (jumpFilter) {\n jumpFilter.value = '';\n }\n updateJumpList('');\n if (jumpDialog?.open || shortcutsDialog?.open) {\n return;\n }\n jumpDialog?.showModal?.();\n jumpFilter?.focus();\n });\n }\n\n document.querySelector('.js-openShortcuts')?.addEventListener('click', () => {\n shortcutsDialog?.showModal?.();\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\nimport { registerHeaderListeners, registerSearchFormListeners } from 'static/shared/header/header';\nimport { CarouselController } from 'static/shared/carousel/carousel';\nimport { ClipboardController } from 'static/shared/clipboard/clipboard';\nimport { ToolTipController } from 'static/shared/tooltip/tooltip';\nimport { SelectNavController } from 'static/shared/outline/select';\nimport { ModalController } from 'static/shared/modal/modal';\nimport { initModals } from 'static/shared/jump/jump';\n\nimport { keyboard } from 'static/shared/keyboard/keyboard';\nimport * as analytics from 'static/shared/analytics/analytics';\n\nwindow.addEventListener('load', () => {\n for (const el of document.querySelectorAll<HTMLButtonElement>('.js-clipboard')) {\n new ClipboardController(el);\n }\n\n for (const el of document.querySelectorAll<HTMLDialogElement>('.js-modal')) {\n new ModalController(el);\n }\n\n for (const t of document.querySelectorAll<HTMLDetailsElement>('.js-tooltip')) {\n new ToolTipController(t);\n }\n\n for (const el of document.querySelectorAll<HTMLSelectElement>('.js-selectNav')) {\n new SelectNavController(el);\n }\n\n for (const el of document.querySelectorAll<HTMLSelectElement>('.js-carousel')) {\n new CarouselController(el);\n }\n\n for (const el of document.querySelectorAll('.js-toggleTheme')) {\n el.addEventListener('click', () => {\n toggleTheme();\n });\n }\n\n if (document.querySelector<HTMLElement>('.js-gtmID')?.dataset.gtmid && window.dataLayer) {\n analytics.func(function () {\n removeUTMSource();\n });\n } else {\n removeUTMSource();\n }\n\n registerHeaderListeners();\n registerSearchFormListeners();\n initModals();\n});\n\n// Pressing '/' focuses the search box\nkeyboard.on('/', 'focus search', e => {\n const searchInput = Array.from(\n document.querySelectorAll<HTMLInputElement>('.js-searchFocus')\n ).pop();\n // Favoring the Firefox quick find feature over search input\n // focus. See: https://github.com/golang/go/issues/41093.\n if (searchInput && !window.navigator.userAgent.includes('Firefox')) {\n e.preventDefault();\n searchInput.focus();\n }\n});\n\n// Pressing 'y' changes the browser URL to the canonical URL\n// without triggering a reload.\nkeyboard.on('y', 'set canonical url', () => {\n let canonicalURLPath = document.querySelector<HTMLDivElement>('.js-canonicalURLPath')?.dataset[\n 'canonicalUrlPath'\n ];\n if (canonicalURLPath && canonicalURLPath !== '') {\n const fragment = window.location.hash;\n if (fragment) {\n canonicalURLPath += fragment;\n }\n window.history.replaceState(null, '', canonicalURLPath);\n }\n});\n\n/**\n * setupGoogleTagManager initializes Google Tag Manager.\n */\n(function setupGoogleTagManager() {\n analytics.track({\n 'gtm.start': new Date().getTime(),\n event: 'gtm.js',\n });\n})();\n\n/**\n * removeUTMSource removes the utm_source GET parameter if present.\n * This is done using JavaScript, so that the utm_source is still\n * captured by Google Analytics.\n */\nfunction removeUTMSource() {\n const urlParams = new URLSearchParams(window.location.search);\n const utmSource = urlParams.get('utm_source');\n if (utmSource !== 'gopls' && utmSource !== 'godoc' && utmSource !== 'pkggodev') {\n return;\n }\n\n /** Strip the utm_source query parameter and replace the URL. **/\n const newURL = new URL(window.location.href);\n urlParams.delete('utm_source');\n newURL.search = urlParams.toString();\n window.history.replaceState(null, '', newURL.toString());\n}\n\n/**\n * toggleTheme switches the preferred color scheme between auto, light, and dark.\n */\nfunction toggleTheme() {\n let nextTheme = 'dark';\n const theme = document.documentElement.getAttribute('data-theme');\n if (theme === 'dark') {\n nextTheme = 'light';\n } else if (theme === 'light') {\n nextTheme = 'auto';\n }\n let domain = '';\n if (location.hostname.endsWith('go.dev')) {\n domain = 'domain=.go.dev;';\n }\n document.documentElement.setAttribute('data-theme', nextTheme);\n document.cookie = `prefers-color-scheme=${nextTheme};${domain}path=/;max-age=31536000;`;\n}\n"],
- "mappings": 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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\nexport function registerHeaderListeners(): void {\n const header = document.querySelector('.js-header') as HTMLElement;\n\n // Desktop menu hover state\n const menuItemHovers = document.querySelectorAll('.js-desktop-menu-hover');\n menuItemHovers.forEach(menuItemHover => {\n // when user clicks on the dropdown menu item on desktop or mobile,\n // force the menu to stay open until the user clicks off of it.\n menuItemHover.addEventListener('mouseenter', e => {\n const target = e.target as HTMLElement;\n const forced = document.querySelector('.forced-open') as HTMLElement;\n if (forced && forced !== menuItemHover) {\n forced.blur();\n forced.classList.remove('forced-open');\n }\n // prevents menus that have been tabbed into from staying open\n // when you hover over another menu\n target.focus();\n target.blur();\n });\n\n const toggleForcedOpen = (e: Event) => {\n const target = e.target as HTMLElement;\n const isForced = target?.classList.contains('forced-open');\n const currentTarget = e.currentTarget as HTMLElement;\n if (isForced) {\n currentTarget.removeEventListener('blur', () =>\n currentTarget.classList.remove('forced-open')\n );\n currentTarget.classList.remove('forced-open');\n currentTarget.classList.add('forced-closed');\n currentTarget.blur();\n currentTarget?.parentNode?.addEventListener('mouseout', () => {\n currentTarget.classList.remove('forced-closed');\n });\n } else {\n currentTarget.classList.remove('forced-closed');\n currentTarget.classList.add('forced-open');\n currentTarget.focus();\n currentTarget.addEventListener('blur', () => currentTarget.classList.remove('forced-open'));\n currentTarget?.parentNode?.removeEventListener('mouseout', () => {\n currentTarget.classList.remove('forced-closed');\n });\n }\n };\n menuItemHover.addEventListener('click', toggleForcedOpen);\n });\n\n // ensure desktop submenus are closed when esc is pressed\n const headerItems = document.querySelectorAll('.Header-menuItem');\n headerItems.forEach(header => {\n header.addEventListener('keyup', e => {\n const event = e as KeyboardEvent;\n if (event.key === 'Escape') {\n (event.target as HTMLElement)?.blur();\n }\n });\n });\n\n // Mobile menu subnav menus\n const headerbuttons = document.querySelectorAll('.js-headerMenuButton');\n headerbuttons.forEach(button => {\n button.addEventListener('click', e => {\n e.preventDefault();\n const isActive = header?.classList.contains('is-active');\n if (isActive) {\n handleNavigationDrawerInactive(header);\n } else {\n handleNavigationDrawerActive(header);\n }\n button.setAttribute('aria-expanded', isActive ? 'true' : 'false');\n });\n });\n\n const scrim = document.querySelector('.js-scrim');\n scrim?.addEventListener('click', e => {\n e.preventDefault();\n\n // find any active submenus and close them\n const activeSubnavs = document.querySelectorAll('.go-NavigationDrawer-submenuItem.is-active');\n activeSubnavs.forEach(subnav => handleNavigationDrawerInactive(subnav as HTMLElement));\n\n handleNavigationDrawerInactive(header);\n\n headerbuttons.forEach(button => {\n button.setAttribute(\n 'aria-expanded',\n header?.classList.contains('is-active') ? 'true' : 'false'\n );\n });\n });\n\n const getNavigationDrawerMenuItems = (navigationDrawer: HTMLElement): HTMLElement[] => {\n if (!navigationDrawer) {\n return [];\n }\n\n const menuItems = Array.from(\n navigationDrawer.querySelectorAll(\n ':scope > .go-NavigationDrawer-nav > .go-NavigationDrawer-list > .go-NavigationDrawer-listItem > a, :scope > .go-NavigationDrawer-nav > .go-NavigationDrawer-list > .go-NavigationDrawer-listItem > .go-Header-socialIcons > a'\n ) || []\n );\n\n const anchorEl = navigationDrawer.querySelector('.go-NavigationDrawer-header > a');\n if (anchorEl) {\n menuItems.unshift(anchorEl);\n }\n return menuItems as HTMLElement[];\n };\n\n const getNavigationDrawerIsSubnav = (navigationDrawer: HTMLElement) => {\n if (!navigationDrawer) {\n return;\n }\n return navigationDrawer.classList.contains('go-NavigationDrawer-submenuItem');\n };\n\n const handleNavigationDrawerInactive = (navigationDrawer: HTMLElement) => {\n if (!navigationDrawer) {\n return;\n }\n const menuItems = getNavigationDrawerMenuItems(navigationDrawer);\n navigationDrawer.classList.remove('is-active');\n const parentMenuItem = navigationDrawer\n .closest('.go-NavigationDrawer-listItem')\n ?.querySelector(':scope > a') as HTMLElement;\n parentMenuItem?.focus();\n menuItems?.forEach(item => item?.setAttribute('tabindex', '-1'));\n if (menuItems && menuItems[0]) {\n menuItems[0].removeEventListener('keydown', handleMenuItemTabLeftFactory(navigationDrawer));\n menuItems[menuItems.length - 1].removeEventListener(\n 'keydown',\n handleMenuItemTabRightFactory(navigationDrawer)\n );\n }\n\n if (navigationDrawer === header) {\n headerbuttons && (headerbuttons[0] as HTMLElement)?.focus();\n }\n };\n\n const handleNavigationDrawerActive = (navigationDrawer: HTMLElement) => {\n const menuItems = getNavigationDrawerMenuItems(navigationDrawer);\n\n navigationDrawer.classList.add('is-active');\n menuItems.forEach(item => item.setAttribute('tabindex', '0'));\n menuItems[0].focus();\n\n menuItems[0].addEventListener('keydown', handleMenuItemTabLeftFactory(navigationDrawer));\n menuItems[menuItems.length - 1].addEventListener(\n 'keydown',\n handleMenuItemTabRightFactory(navigationDrawer)\n );\n };\n\n const handleMenuItemTabLeftFactory = (navigationDrawer: HTMLElement) => {\n return (e: KeyboardEvent) => {\n if (e.key === 'Tab' && e.shiftKey) {\n e.preventDefault();\n handleNavigationDrawerInactive(navigationDrawer);\n }\n };\n };\n\n const handleMenuItemTabRightFactory = (navigationDrawer: HTMLElement) => {\n return (e: KeyboardEvent) => {\n if (e.key === 'Tab' && !e.shiftKey) {\n e.preventDefault();\n handleNavigationDrawerInactive(navigationDrawer);\n }\n };\n };\n\n const prepMobileNavigationDrawer = (navigationDrawer: HTMLElement) => {\n const isSubnav = getNavigationDrawerIsSubnav(navigationDrawer);\n const menuItems = getNavigationDrawerMenuItems(navigationDrawer);\n navigationDrawer.addEventListener('keyup', e => {\n if (e.key === 'Escape') {\n handleNavigationDrawerInactive(navigationDrawer);\n }\n });\n\n menuItems.forEach(item => {\n const parentLi = item.closest('li');\n if (parentLi && parentLi.classList.contains('js-mobile-subnav-trigger')) {\n const submenu = parentLi.querySelector('.go-NavigationDrawer-submenuItem') as HTMLElement;\n item.addEventListener('click', () => {\n handleNavigationDrawerActive(submenu);\n });\n }\n });\n if (isSubnav) {\n handleNavigationDrawerInactive(navigationDrawer);\n navigationDrawer\n ?.querySelector('.go-NavigationDrawer-header')\n ?.addEventListener('click', e => {\n e.preventDefault();\n handleNavigationDrawerInactive(navigationDrawer);\n });\n }\n };\n\n document\n .querySelectorAll('.go-NavigationDrawer')\n .forEach(drawer => prepMobileNavigationDrawer(drawer as HTMLElement));\n\n handleNavigationDrawerInactive(header);\n}\n\nexport function registerSearchFormListeners(): void {\n const searchForm = document.querySelector('.js-searchForm');\n const expandSearch = document.querySelector('.js-expandSearch');\n const input = searchForm?.querySelector('input');\n const headerLogo = document.querySelector('.js-headerLogo');\n const menuButton = document.querySelector('.js-headerMenuButton');\n expandSearch?.addEventListener('click', () => {\n searchForm?.classList.add('go-SearchForm--expanded');\n headerLogo?.classList.add('go-Header-logo--hidden');\n menuButton?.classList.add('go-Header-navOpen--hidden');\n input?.focus();\n });\n document?.addEventListener('click', e => {\n if (!searchForm?.contains(e.target as Node)) {\n searchForm?.classList.remove('go-SearchForm--expanded');\n headerLogo?.classList.remove('go-Header-logo--hidden');\n menuButton?.classList.remove('go-Header-navOpen--hidden');\n }\n });\n}\n", "/**\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 * Carousel Controller adds event listeners, accessibility enhancements, and\n * control elements to a carousel component.\n */\nexport class CarouselController {\n /**\n * slides is a collection of slides in the carousel.\n */\n private slides: HTMLLIElement[];\n /**\n * dots is a collection of dot navigation controls, added to the carousel\n * by this controller.\n */\n private dots: HTMLElement[];\n /**\n * liveRegion is a visually hidden element that notifies assitive devices\n * of visual changes to the carousel. They are added to the carousel by\n * this controller.\n */\n private liveRegion: HTMLElement;\n /**\n * activeIndex is the 0-index of the currently active slide.\n */\n private activeIndex: number;\n\n constructor(private el: HTMLElement) {\n this.slides = Array.from(el.querySelectorAll('.go-Carousel-slide'));\n this.dots = [];\n this.liveRegion = document.createElement('div');\n this.activeIndex = Number(el.getAttribute('data-slide-index') ?? 0);\n\n this.initSlides();\n this.initArrows();\n this.initDots();\n this.initLiveRegion();\n }\n\n private initSlides() {\n for (const [i, v] of this.slides.entries()) {\n if (i === this.activeIndex) continue;\n v.setAttribute('aria-hidden', 'true');\n }\n }\n\n private initArrows() {\n const arrows = document.createElement('ul');\n arrows.classList.add('go-Carousel-arrows');\n arrows.innerHTML = `\n <li>\n <button class=\"go-Carousel-prevSlide\" aria-label=\"Go to previous slide\">\n <img class=\"go-Icon\" height=\"24\" width=\"24\" src=\"/static/shared/icon/arrow_left_gm_grey_24dp.svg\" alt=\"\">\n </button>\n </li>\n <li>\n <button class=\"go-Carousel-nextSlide\" aria-label=\"Go to next slide\">\n <img class=\"go-Icon\" height=\"24\" width=\"24\" src=\"/static/shared/icon/arrow_right_gm_grey_24dp.svg\" alt=\"\">\n </button>\n </li>\n `;\n arrows\n .querySelector('.go-Carousel-prevSlide')\n ?.addEventListener('click', () => this.setActive(this.activeIndex - 1));\n arrows\n .querySelector('.go-Carousel-nextSlide')\n ?.addEventListener('click', () => this.setActive(this.activeIndex + 1));\n this.el.append(arrows);\n }\n\n private initDots() {\n const dots = document.createElement('ul');\n dots.classList.add('go-Carousel-dots');\n for (let i = 0; i < this.slides.length; i++) {\n const li = document.createElement('li');\n const button = document.createElement('button');\n button.classList.add('go-Carousel-dot');\n if (i === this.activeIndex) {\n button.classList.add('go-Carousel-dot--active');\n }\n button.innerHTML = `<span class=\"go-Carousel-obscured\">Slide ${i + 1}</span>`;\n button.addEventListener('click', () => this.setActive(i));\n li.append(button);\n dots.append(li);\n this.dots.push(button);\n }\n this.el.append(dots);\n }\n\n private initLiveRegion() {\n this.liveRegion.setAttribute('aria-live', 'polite');\n this.liveRegion.setAttribute('aria-atomic', 'true');\n this.liveRegion.setAttribute('class', 'go-Carousel-obscured');\n this.liveRegion.textContent = `Slide ${this.activeIndex + 1} of ${this.slides.length}`;\n this.el.appendChild(this.liveRegion);\n }\n\n private setActive = (index: number) => {\n this.activeIndex = (index + this.slides.length) % this.slides.length;\n this.el.setAttribute('data-slide-index', String(this.activeIndex));\n for (const d of this.dots) {\n d.classList.remove('go-Carousel-dot--active');\n }\n this.dots[this.activeIndex].classList.add('go-Carousel-dot--active');\n for (const s of this.slides) {\n s.setAttribute('aria-hidden', 'true');\n }\n this.slides[this.activeIndex].removeAttribute('aria-hidden');\n this.liveRegion.textContent = 'Slide ' + (this.activeIndex + 1) + ' of ' + this.slides.length;\n };\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * This class decorates an element to copy arbitrary data attached via a data-\n * attribute to the clipboard.\n */\nexport class ClipboardController {\n /**\n * The data to be copied to the clipboard.\n */\n private data: string;\n\n /**\n * @param el The element that will trigger copying text to the clipboard. The text is\n * expected to be within its data-to-copy attribute.\n */\n constructor(private el: HTMLButtonElement) {\n this.data = el.dataset['toCopy'] ?? el.innerText;\n // if data-to-copy is empty and the button is part of an input group\n // capture the value of the input.\n if (!this.data && el.parentElement?.classList.contains('go-InputGroup')) {\n this.data = (this.data || el.parentElement?.querySelector('input')?.value) ?? '';\n }\n el.addEventListener('click', e => this.handleCopyClick(e));\n }\n\n /**\n * Handles when the primary element is clicked.\n */\n handleCopyClick(e: MouseEvent): void {\n e.preventDefault();\n const TOOLTIP_SHOW_DURATION_MS = 1000;\n\n // This API is not available on iOS.\n if (!navigator.clipboard) {\n this.showTooltipText('Unable to copy', TOOLTIP_SHOW_DURATION_MS);\n return;\n }\n navigator.clipboard\n .writeText(this.data)\n .then(() => {\n this.showTooltipText('Copied!', TOOLTIP_SHOW_DURATION_MS);\n })\n .catch(() => {\n this.showTooltipText('Unable to copy', TOOLTIP_SHOW_DURATION_MS);\n });\n }\n\n /**\n * Shows the given text in a tooltip for a specified amount of time, in milliseconds.\n */\n showTooltipText(text: string, durationMs: number): void {\n this.el.setAttribute('data-tooltip', text);\n setTimeout(() => this.el.setAttribute('data-tooltip', ''), durationMs);\n }\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * ToolTipController handles closing tooltips on external clicks.\n */\nexport class ToolTipController {\n constructor(private el: HTMLDetailsElement) {\n document.addEventListener('click', e => {\n const insideTooltip = this.el.contains(e.target as Element);\n if (!insideTooltip) {\n this.el.removeAttribute('open');\n }\n });\n }\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { TreeNavController } from './tree.js';\n\nexport class SelectNavController {\n constructor(private el: Element) {\n this.el.addEventListener('change', e => {\n const target = e.target as HTMLSelectElement;\n let href = target.value;\n if (!target.value.startsWith('/')) {\n href = '/' + href;\n }\n window.location.href = href;\n });\n }\n}\n\nexport function makeSelectNav(tree: TreeNavController): HTMLLabelElement {\n const label = document.createElement('label');\n label.classList.add('go-Label');\n label.setAttribute('aria-label', 'Menu');\n const select = document.createElement('select');\n select.classList.add('go-Select', 'js-selectNav');\n label.appendChild(select);\n const outline = document.createElement('optgroup');\n outline.label = 'Outline';\n select.appendChild(outline);\n const groupMap: Record<string, HTMLOptGroupElement> = {};\n let group: HTMLOptGroupElement;\n for (const t of tree.treeitems) {\n if (Number(t.depth) > 4) continue;\n if (t.groupTreeitem) {\n group = groupMap[t.groupTreeitem.label];\n if (!group) {\n group = groupMap[t.groupTreeitem.label] = document.createElement('optgroup');\n group.label = t.groupTreeitem.label;\n select.appendChild(group);\n }\n } else {\n group = outline;\n }\n const o = document.createElement('option');\n o.label = t.label;\n o.textContent = t.label;\n o.value = (t.el as HTMLAnchorElement).href.replace(window.location.origin, '').replace('/', '');\n group.appendChild(o);\n }\n tree.addObserver(t => {\n const hash = (t.el as HTMLAnchorElement).hash;\n const value = select.querySelector<HTMLOptionElement>(`[value$=\"${hash}\"]`)?.value;\n if (value) {\n select.value = value;\n }\n }, 50);\n return label;\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\ninterface Window {\n dialogPolyfill?: {\n registerDialog: (el: HTMLDialogElement) => void;\n };\n}\n\ndeclare const window: Window;\n\n/**\n * ModalController registers a dialog element with the polyfill if\n * necessary for the current browser, add adds event listeners to\n * close and open modals.\n */\nexport class ModalController {\n constructor(private el: HTMLDialogElement) {\n if (window.dialogPolyfill) {\n window.dialogPolyfill.registerDialog(el);\n }\n this.init();\n }\n\n init() {\n const button = document.querySelector<HTMLButtonElement>(`[aria-controls=\"${this.el.id}\"]`);\n if (button) {\n button.addEventListener('click', () => {\n if (this.el.showModal) {\n this.el.showModal();\n } else {\n this.el.setAttribute('opened', 'true');\n }\n this.el.querySelector('input')?.focus();\n });\n }\n for (const btn of this.el.querySelectorAll<HTMLButtonElement>('[data-modal-close]')) {\n btn.addEventListener('click', () => {\n if (this.el.close) {\n this.el.close();\n } else {\n this.el.removeAttribute('opened');\n }\n });\n }\n }\n}\n", "interface TagManagerEvent {\n /**\n * event is the name of the event, used to filter events in\n * Google Analytics.\n */\n event: string;\n\n /**\n * event_category is a name that you supply as a way to group objects\n * that to analyze. Typically, you will use the same category name\n * multiple times over related UI elements (buttons, links, etc).\n */\n event_category?: string;\n\n /**\n * event_action is used to name the type of event or interaction you\n * want to measure for a particular web object. For example, with a\n * single \"form\" category, you can analyze a number of specific events\n * with this parameter, such as: form entered, form submitted.\n */\n event_action?: string;\n\n /**\n * event_label provide additional information for events that you want\n * to analyze, such as the text label of a link.\n */\n event_label?: string;\n\n /**\n * gtm.start is used to initialize Google Tag Manager.\n */\n 'gtm.start'?: number;\n}\n\n// eslint-disable-next-line @typescript-eslint/no-unused-vars\ndeclare global {\n interface Window {\n dataLayer?: (TagManagerEvent | VoidFunction)[];\n ga?: unknown;\n }\n}\n\n/**\n * track sends events to Google Tag Manager.\n */\nexport function track(\n event: string | TagManagerEvent,\n category?: string,\n action?: string,\n label?: string\n): void {\n window.dataLayer ??= [];\n if (typeof event === 'string') {\n window.dataLayer.push({\n event,\n event_category: category,\n event_action: action,\n event_label: label,\n });\n } else {\n window.dataLayer.push(event);\n }\n}\n\n/**\n * func adds functions to run sequentionally after\n * Google Tag Manager is ready.\n */\nexport function func(fn: () => void): void {\n window.dataLayer ??= [];\n window.dataLayer.push(fn);\n}\n", "/*!\n * @license\n * Copyright 2019-2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { track } from '../analytics/analytics';\n\n/**\n * Options are keyhandler callback options.\n */\ninterface Options {\n /**\n * target is the element the key event should filter on. The\n * default target is the document.\n */\n target?: Element;\n\n /**\n * withMeta specifies if the event callback should fire when\n * the key is pressed with a meta key (ctrl, alt, etc). By\n * default meta keypresses are ignored.\n */\n withMeta?: boolean;\n}\n\n/**\n * KeyHandler is the config for a keyboard event callback.\n */\ninterface KeyHandler extends Options {\n description: string;\n callback: (e: KeyboardEvent) => void;\n}\n\n/**\n * KeyboardController controls event callbacks for sitewide\n * keyboard events. Multiple callbacks can be registered for\n * a single key and by default the controller ignores events\n * for text input targets.\n */\nclass KeyboardController {\n handlers: Record<string, Set<KeyHandler>>;\n\n constructor() {\n this.handlers = {};\n document.addEventListener('keydown', e => this.handleKeyPress(e));\n }\n\n /**\n * on registers keyboard event callbacks.\n * @param key the key to register.\n * @param description name of the event.\n * @param callback event callback.\n * @param options set target and withMeta options to override the default behaviors.\n */\n on(key: string, description: string, callback: (e: KeyboardEvent) => void, options?: Options) {\n this.handlers[key] ??= new Set();\n this.handlers[key].add({ description, callback, ...options });\n return this;\n }\n\n private handleKeyPress(e: KeyboardEvent) {\n for (const handler of this.handlers[e.key.toLowerCase()] ?? new Set()) {\n if (handler.target && handler.target !== e.target) {\n return;\n }\n const t = e.target as HTMLElement | null;\n if (\n !handler.target &&\n (t?.tagName === 'INPUT' || t?.tagName === 'SELECT' || t?.tagName === 'TEXTAREA')\n ) {\n return;\n }\n if (t?.isContentEditable) {\n return;\n }\n if (\n (handler.withMeta && !(e.ctrlKey || e.metaKey)) ||\n (!handler.withMeta && (e.ctrlKey || e.metaKey))\n ) {\n return;\n }\n track('keypress', 'hotkeys', `${e.key} pressed`, handler.description);\n handler.callback(e);\n }\n }\n}\n\nexport const keyboard = new KeyboardController();\n", "/*!\n * @license\n * Copyright 2019-2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n// This file implements the behavior of the \"jump to symbol\" dialog for Go\n// package documentation, as well as the simple dialog that displays keyboard\n// shortcuts.\n\n// The DOM for the dialogs is at the bottom of static/frontend/unit/main/_modals.tmpl.\n// The CSS is in static/frontend/unit/main/_modals.css.\n\n// The dialog is activated by pressing the 'f' key. It presents a list\n// (#JumpDialog-list) of all Go symbols displayed in the documentation.\n// Entering text in the dialog's text box (#JumpDialog-filter) restricts the\n// list to symbols containing the text. Clicking on an symbol jumps to\n// its documentation.\n\n// This code is based on\n// https://go.googlesource.com/gddo/+/refs/heads/master/gddo-server/assets/site.js.\n// It was modified to remove the dependence on jquery and bootstrap.\n\nimport { keyboard } from '../keyboard/keyboard';\n\nexport function initModals(): void {\n const jumpDialog = document.querySelector<HTMLDialogElement>('.JumpDialog');\n const jumpBody = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-body');\n const jumpList = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-list');\n const jumpFilter = jumpDialog?.querySelector<HTMLInputElement>('.JumpDialog-input');\n const doc = document.querySelector<HTMLDivElement>('.js-documentation');\n\n interface JumpListItem {\n link: HTMLAnchorElement;\n name: string;\n kind: string;\n lower: string;\n }\n\n let jumpListItems: JumpListItem[] | undefined; // All the symbols in the doc; computed only once.\n\n // collectJumpListItems returns a list of items, one for each symbol in the\n // documentation on the current page.\n //\n // It uses the data-kind attribute generated in the documentation HTML to find\n // the symbols and their id attributes.\n //\n // If there are no data-kind attributes, then we have older doc; fall back to\n // a less precise method.\n function collectJumpListItems() {\n const items = [];\n if (!doc) return;\n for (const el of doc.querySelectorAll('[data-kind]')) {\n items.push(newJumpListItem(el));\n }\n\n // Clicking on any of the links closes the dialog.\n for (const item of items) {\n item.link.addEventListener('click', function () {\n jumpDialog?.close();\n });\n }\n // Sort case-insensitively by symbol name.\n items.sort(function (a, b) {\n return a.lower.localeCompare(b.lower);\n });\n return items;\n }\n\n // newJumpListItem creates a new item for the DOM element el.\n // An item is an object with:\n // - name: the element's id (which is the symbol name)\n // - kind: the element's kind (function, variable, etc.),\n // - link: a link ('a' tag) to the element\n // - lower: the name in lower case, just for sorting\n function newJumpListItem(el: Element): JumpListItem {\n const a = document.createElement('a');\n const name = el.getAttribute('id');\n a.setAttribute('href', '#' + name);\n a.setAttribute('tabindex', '-1');\n a.setAttribute('data-gtmc', 'jump to link');\n const kind = el.getAttribute('data-kind');\n return {\n link: a,\n name: name ?? '',\n kind: kind ?? '',\n lower: name?.toLowerCase() ?? '', // for sorting\n };\n }\n\n let lastFilterValue: string; // The last contents of the filter text box.\n let 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.\n function updateJumpList(filter: string) {\n lastFilterValue = filter;\n if (!jumpListItems) {\n jumpListItems = collectJumpListItems();\n }\n setActiveJumpItem(-1);\n\n // Remove all children from list.\n while (jumpList?.firstChild) {\n jumpList.firstChild.remove();\n }\n\n if (filter) {\n // A filter is set. We treat the filter as a substring that can appear in\n // an item name (case insensitive), and find the following matches - in\n // order of priority:\n //\n // 1. Exact matches (the filter matches the item's name exactly)\n // 2. Prefix matches (the item's name starts with filter)\n // 3. Infix matches (the filter is a substring of the item's name)\n const filterLowerCase = filter.toLowerCase();\n\n const exactMatches = [];\n const prefixMatches = [];\n const infixMatches = [];\n\n // makeLinkHtml creates the link name HTML for a list item. item is the DOM\n // item. item.name.substr(boldStart, boldEnd) will be bolded.\n const makeLinkHtml = (item: JumpListItem, boldStart: number, boldEnd: number) => {\n return (\n item.name.substring(0, boldStart) +\n '<b>' +\n item.name.substring(boldStart, boldEnd) +\n '</b>' +\n item.name.substring(boldEnd)\n );\n };\n\n for (const item of jumpListItems ?? []) {\n const nameLowerCase = item.name.toLowerCase();\n\n if (nameLowerCase === filterLowerCase) {\n item.link.innerHTML = makeLinkHtml(item, 0, item.name.length);\n exactMatches.push(item);\n } else if (nameLowerCase.startsWith(filterLowerCase)) {\n item.link.innerHTML = makeLinkHtml(item, 0, filter.length);\n prefixMatches.push(item);\n } else {\n const index = nameLowerCase.indexOf(filterLowerCase);\n if (index > -1) {\n item.link.innerHTML = makeLinkHtml(item, index, index + filter.length);\n infixMatches.push(item);\n }\n }\n }\n\n for (const item of exactMatches.concat(prefixMatches).concat(infixMatches)) {\n jumpList?.appendChild(item.link);\n }\n } else {\n if (!jumpListItems || jumpListItems.length === 0) {\n const msg = document.createElement('i');\n msg.innerHTML = 'There are no symbols on this page.';\n jumpList?.appendChild(msg);\n }\n // No filter set; display all items in their existing order.\n for (const item of jumpListItems ?? []) {\n item.link.innerHTML = item.name + ' <i>' + item.kind + '</i>';\n jumpList?.appendChild(item.link);\n }\n }\n\n if (jumpBody) {\n jumpBody.scrollTop = 0;\n }\n if (jumpListItems?.length && jumpList && jumpList.children.length > 0) {\n setActiveJumpItem(0);\n }\n }\n\n // Set the active jump item to n.\n function 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.\n function 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).\n jumpFilter?.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.\n jumpFilter?.addEventListener('keydown', function (event) {\n const upArrow = 38;\n const downArrow = 40;\n const enterKey = 13;\n switch (event.which) {\n case upArrow:\n incActiveJumpItem(-1);\n event.preventDefault();\n break;\n case downArrow:\n incActiveJumpItem(1);\n event.preventDefault();\n break;\n case enterKey:\n if (activeJumpItem >= 0) {\n if (jumpList) {\n (jumpList.children[activeJumpItem] as HTMLElement).click();\n event.preventDefault();\n }\n }\n break;\n }\n });\n\n const shortcutsDialog = document.querySelector<HTMLDialogElement>('.ShortcutsDialog');\n\n // - Pressing 'f' or 'F' opens the jump-to-symbol dialog.\n // - Pressing '?' opens up the shortcut dialog.\n // Ignore a keypress if a dialog is already open, or if it is pressed on a\n // component that wants to consume it.\n keyboard\n .on('f', 'open jump to modal', e => {\n if (jumpDialog?.open || shortcutsDialog?.open) {\n return;\n }\n e.preventDefault();\n if (jumpFilter) {\n jumpFilter.value = '';\n }\n jumpDialog?.showModal?.();\n jumpFilter?.focus();\n updateJumpList('');\n })\n .on('?', 'open shortcuts modal', () => {\n if (jumpDialog?.open || shortcutsDialog?.open) {\n return;\n }\n shortcutsDialog?.showModal?.();\n });\n\n const jumpOutlineInput = document.querySelector('.js-jumpToInput');\n if (jumpOutlineInput) {\n jumpOutlineInput.addEventListener('click', () => {\n if (jumpFilter) {\n jumpFilter.value = '';\n }\n updateJumpList('');\n if (jumpDialog?.open || shortcutsDialog?.open) {\n return;\n }\n jumpDialog?.showModal?.();\n jumpFilter?.focus();\n });\n }\n\n document.querySelector('.js-openShortcuts')?.addEventListener('click', () => {\n shortcutsDialog?.showModal?.();\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\nimport { registerHeaderListeners, registerSearchFormListeners } from 'static/shared/header/header';\nimport { CarouselController } from 'static/shared/carousel/carousel';\nimport { ClipboardController } from 'static/shared/clipboard/clipboard';\nimport { ToolTipController } from 'static/shared/tooltip/tooltip';\nimport { SelectNavController } from 'static/shared/outline/select';\nimport { ModalController } from 'static/shared/modal/modal';\nimport { initModals } from 'static/shared/jump/jump';\n\nimport { keyboard } from 'static/shared/keyboard/keyboard';\nimport * as analytics from 'static/shared/analytics/analytics';\n\nwindow.addEventListener('load', () => {\n for (const el of document.querySelectorAll<HTMLButtonElement>('.js-clipboard')) {\n new ClipboardController(el);\n }\n\n for (const el of document.querySelectorAll<HTMLDialogElement>('.js-modal')) {\n new ModalController(el);\n }\n\n for (const t of document.querySelectorAll<HTMLDetailsElement>('.js-tooltip')) {\n new ToolTipController(t);\n }\n\n for (const el of document.querySelectorAll<HTMLSelectElement>('.js-selectNav')) {\n new SelectNavController(el);\n }\n\n for (const el of document.querySelectorAll<HTMLSelectElement>('.js-carousel')) {\n new CarouselController(el);\n }\n\n for (const el of document.querySelectorAll('.js-toggleTheme')) {\n el.addEventListener('click', () => {\n toggleTheme();\n });\n }\n\n if (document.querySelector<HTMLElement>('.js-gtmID')?.dataset.gtmid && window.dataLayer) {\n analytics.func(function () {\n removeUTMSource();\n });\n } else {\n removeUTMSource();\n }\n\n registerHeaderListeners();\n registerSearchFormListeners();\n initModals();\n});\n\n// Pressing '/' focuses the search box\nkeyboard.on('/', 'focus search', e => {\n const searchInput = Array.from(\n document.querySelectorAll<HTMLInputElement>('.js-searchFocus')\n ).pop();\n // Favoring the Firefox quick find feature over search input\n // focus. See: https://github.com/golang/go/issues/41093.\n if (searchInput && !window.navigator.userAgent.includes('Firefox')) {\n e.preventDefault();\n searchInput.focus();\n }\n});\n\n// Pressing 'y' changes the browser URL to the canonical URL\n// without triggering a reload.\nkeyboard.on('y', 'set canonical url', () => {\n let canonicalURLPath = document.querySelector<HTMLDivElement>('.js-canonicalURLPath')?.dataset[\n 'canonicalUrlPath'\n ];\n if (canonicalURLPath && canonicalURLPath !== '') {\n const fragment = window.location.hash;\n if (fragment) {\n canonicalURLPath += fragment;\n }\n window.history.replaceState(null, '', canonicalURLPath);\n }\n});\n\n/**\n * setupGoogleTagManager initializes Google Tag Manager.\n */\n(function setupGoogleTagManager() {\n analytics.track({\n 'gtm.start': new Date().getTime(),\n event: 'gtm.js',\n });\n})();\n\n/**\n * removeUTMSource removes the utm_source GET parameter if present.\n * This is done using JavaScript, so that the utm_source is still\n * captured by Google Analytics.\n */\nfunction removeUTMSource() {\n const urlParams = new URLSearchParams(window.location.search);\n const utmSource = urlParams.get('utm_source');\n if (utmSource !== 'gopls' && utmSource !== 'godoc' && utmSource !== 'pkggodev') {\n return;\n }\n\n /** Strip the utm_source query parameter and replace the URL. **/\n const newURL = new URL(window.location.href);\n urlParams.delete('utm_source');\n newURL.search = urlParams.toString();\n window.history.replaceState(null, '', newURL.toString());\n}\n\n/**\n * toggleTheme switches the preferred color scheme between auto, light, and dark.\n */\nfunction toggleTheme() {\n let nextTheme = 'dark';\n const theme = document.documentElement.getAttribute('data-theme');\n if (theme === 'dark') {\n nextTheme = 'light';\n } else if (theme === 'light') {\n nextTheme = 'auto';\n }\n let domain = '';\n if (location.hostname.endsWith('go.dev')) {\n domain = 'domain=.go.dev;';\n }\n document.documentElement.setAttribute('data-theme', nextTheme);\n document.cookie = `prefers-color-scheme=${nextTheme};${domain}path=/;max-age=31536000;`;\n}\n"],
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"names": []
}
diff --git a/static/frontend/frontend.min.css b/static/frontend/frontend.min.css
index 2490676..9a5fdff 100644
--- a/static/frontend/frontend.min.css
+++ b/static/frontend/frontend.min.css
@@ -3,7 +3,7 @@
* Use of this source code is governed by a BSD-style
* license that can be found in the LICENSE file.
*/
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var(--color-brand-primary);--color-button-inverted-text-disabled: var(--color-text-subtle);--color-button-accented: var(--yellow);--color-button-accented-disabled: var(--gray-9);--color-button-accented-text: var(--gray-1);--color-button-accented-text-disabled: var(--gray-3)}[data-theme=dark]{--color-brand-primary: var(--turq-med);--color-background: var(--gray-1);--color-background-accented: var(--gray-2);--color-background-highlighted: var(--gray-2);--color-background-highlighted-link: var(--gray-2);--color-background-info: var(--gray-3);--color-background-warning: var(--yellow);--color-background-alert: var(--pink);--color-border: var(--gray-4);--color-text: var(--gray-9);--color-text-link: var(--turq-med);--color-text-subtle: var(--gray-7);--color-code-comment: var(--green-light)}@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--color-brand-primary: var(--turq-med);--color-background: var(--gray-1);--color-background-accented: 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.go-Footer-link--primary{font-size:1.125rem;line-height:1.75rem;margin-bottom:.5rem;margin-top:.75rem}.go-Footer-bottom{align-items:center;border-top:var(--border);display:flex;margin:0 1.5rem;min-height:4.125rem}.go-Footer-gopher{align-self:flex-end;height:3.147rem;width:5rem}.go-Footer-listRow{display:flex;flex:1;flex-wrap:wrap;list-style:none;margin:0;padding:0;text-align:center}.go-Footer-listItem{align-items:center;display:flex;flex:1 100%;justify-content:center;margin:.4rem 0;padding:0 1rem}.go-Footer-listItem a:link,.go-Footer-listItem a:visited{color:var(--color-text-inverted)}.go-Footer-listItem .go-Button--text{background-color:transparent;font-size:1rem;margin:-.5rem 0}.go-Footer-listItem [data-value]{display:none}[data-theme=auto] .go-Footer-listItem [data-value=auto],:root:not([data-theme]) .go-Footer-listItem [data-value=auto]{display:initial}[data-theme=dark] .go-Footer-listItem [data-value=dark],[data-theme=light] .go-Footer-listItem 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form{flex-grow:1}.go-Header-inner--dark{border-bottom:none;color:var(--white)}.go-Header-logo{display:block;height:2rem;margin-right:2.25rem;width:5.125rem}.go-Header-logo--hidden{display:none}.go-Header-menuItem{display:none;position:relative}.go-Header-menu{align-items:stretch;display:flex;height:100%;list-style:none;margin:0;padding:0}.go-Header-submenu{padding:1.5rem 1.5rem 0;list-style-type:none;background:transparent;visibility:hidden;opacity:0;display:none;transition:all .2s ease;margin-top:3.5rem;position:absolute;flex-direction:column;flex-wrap:wrap;color:var(--color-text);background-color:var(--color-background);border:.0625rem solid #007d9d;border-width:0 .0625rem .0625rem}.go-Header-menuItem:hover>.js-desktop-menu-hover:not(.forced-closed)~.go-Header-submenu,.go-Header-menuItem:focus-within>.js-desktop-menu-hover:not(.forced-closed)~.go-Header-submenu{visibility:visible;opacity:1;display:flex}.go-Header-menuItem .go-Header-submenuItem a:link,.go-Header-menuItem 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a:hover{border-bottom-color:var(--white)}.go-Header-menuItem:hover>a:not(.forced-closed).js-desktop-menu-hover,.go-Header-menuItem:focus-within>a:not(.forced-closed).js-desktop-menu-hover{background:var(--white);color:var(--color-text-link);border-color:var(--white)}@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .go-Header-menuItem:hover>a:not(.forced-closed).js-desktop-menu-hover .go-Icon,:root:not([data-theme="light"]) .go-Header-menuItem:focus-within>a:not(.forced-closed).js-desktop-menu-hover .go-Icon{filter:brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(158deg) brightness(83%) contrast(157%)}:root:not([data-theme="light"]) .go-Header-submenuItem .go-Icon:not(.go-Icon--accented){filter:brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(163deg) brightness(80%) contrast(157%)}}.go-NavigationDrawer-listItem>div:not(.go-NavigationDrawer),.go-NavigationDrawer-listItem a:link,.go-NavigationDrawer-listItem 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center/2rem url(/static/shared/icon/menu_gm_grey_24dp.svg);filter:brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg) brightness(103%) contrast(107%)}.go-SearchForm--expanded{flex-grow:1}.go-SearchForm-form{display:none}.go-SearchForm-form:after{right:2.75rem}.go-SearchForm--expanded .go-SearchForm-form{display:flex}.go-SearchForm-expandSearch{appearance:none;background:none;font-size:1.5rem}.go-SearchForm--expanded .go-SearchForm-expandSearch{display:none}@media only screen and (min-width: 32rem){.go-Header-rightContent{width:100%}.go-SearchForm{flex:1}.go-SearchForm-form{display:flex}.go-SearchForm-expandSearch{display:none}.go-Header-logo--hidden{display:initial}}.go-NavigationDrawer{background:var(--color-background);height:100%;left:auto;max-width:27rem;position:fixed;right:0;top:0;transform:translate(100%);transition:transform .1s ease-in-out;width:85%;z-index:30}@media only screen and (min-width: 65rem){.go-NavigationDrawer{display:none}}.go-NavigationDrawer.is-active{transform:translate(0)}.go-NavigationDrawer-header{border-bottom:1px solid #eeeeee;margin-bottom:.5rem}.go-NavigationDrawer-submenuItem{width:100%}.go-NavigationDrawer-submenuItem .go-NavigationDrawer-header{min-height:4.0625rem;font-size:1.375rem;display:flex;align-items:center;justify-content:flex-start;padding:.5rem .5rem .5rem 1.5rem;color:var(--color-text-link)}.go-NavigationDrawer-submenuItem .go-NavigationDrawer-header>a{display:flex;margin-left:0}.go-NavigationDrawer-logo{display:block;height:2rem;margin:1rem;width:5.125rem}.go-NavigationDrawer-list{list-style:none;margin:0;padding:0}.go-NavigationDrawer-listItem{font-size:1.125rem;margin:0 .5rem;color:var(--color-text-subtle)}.go-NavigationDrawer-listItem--active{background-color:var(--blue);border-radius:.4rem}.go-NavigationDrawer-listItem .material-icons{color:var(--color-brand-primary);margin-right:.5rem;display:inline-block;vertical-align:sub;text-decoration:none}@media only screen and (max-width: 57.7rem){.go-NavigationDrawer-listItem .go-Header-socialIcons{padding:.5rem 0}.go-NavigationDrawer-listItem a.go-Header-socialIcon{padding:0 .5rem;margin:0;display:inline-block}@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .go-NavigationDrawer-listItem .go-Icon:not(.go-Icon--accented){filter:brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(163deg) brightness(80%) contrast(157%)}}}.go-NavigationDrawer-scrim{display:none;height:100%;left:0;position:fixed;top:0;width:100%;z-index:20}.go-NavigationDrawer.is-active+.go-NavigationDrawer-scrim{background-color:var(--gray-1);display:block;opacity:.32}.depsdev-Icon{height:1.125em;vertical-align:text-bottom;width:auto}.go-Icon{filter:none;height:1.125em;vertical-align:text-bottom;width:auto}.go-Icon--accented{filter:brightness(0) invert(45%) sepia(94%) saturate(6735%) hue-rotate(176deg) brightness(94%) contrast(101%)}.go-Icon--inverted{filter:brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg) brightness(103%) contrast(107%)}[data-theme=dark] .go-Icon:not(.go-Icon--accented){filter:brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg) brightness(103%) contrast(107%)}[data-theme=dark] .go-Icon--accented{filter:brightness(0) invert(69%) sepia(46%) saturate(466%) hue-rotate(153deg) brightness(90%) contrast(88%)}@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .go-Icon:not(.go-Icon--accented){filter:brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg) brightness(103%) contrast(107%)}:root:not([data-theme="light"]) .go-Icon--accented{filter:brightness(0) invert(57%) sepia(63%) saturate(4864%) hue-rotate(160deg) brightness(100%) contrast(101%)}}.go-Message{color:var(--color-text);font-size:.875rem;line-height:1.5rem;padding:.25rem .5rem;width:100%}.go-Message--notice{background-color:var(--color-background-info)}.go-Message--warning{background-color:var(--color-background-warning);color:var(--gray-1)}.go-Message--alert{background-color:var(--color-background-alert)}.go-Message>.go-Icon{vertical-align:text-top}[data-theme=dark] .go-Message a:not(:hover){color:var(--color-text);text-decoration:underline}[data-theme=dark] .go-Message--warning .go-Icon{filter:none}@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .go-Message--warning .go-Icon{filter:none}}dialog{position:absolute;left:0;right:0;width:-moz-fit-content;width:-webkit-fit-content;width:fit-content;height:-moz-fit-content;height:-webkit-fit-content;height:fit-content;margin:auto;border:solid;padding:1em;background:white;color:#000;display:block}dialog:not([open]){display:none}dialog+.backdrop{position:fixed;inset:0;background:rgba(0,0,0,.1)}._dialog_overlay{position:fixed;inset:0}dialog.fixed{position:fixed;top:50%;transform:translateY(-50%)}.go-Modal{background:var(--color-background);border:var(--border);border-radius:var(--border-radius);bottom:0;box-shadow:var(--box-shadow);color:var(--color-text);display:flex;flex-direction:column;gap:1rem;max-height:100%;max-width:100%;position:fixed;top:0}.go-Modal>form{display:contents}.go-Modal--small{width:20rem}.go-Modal--md{width:30rem}.go-Modal--lg{width:40rem}.go-Modal-header{display:flex;justify-content:space-between}.go-Modal-header h2{font-size:1.15rem;line-height:1.25rem}.go-Modal-body{flex-grow:1;min-height:2rem;min-width:18rem}.go-Modal-actions{text-align:right}@media not all and (min-resolution: .001dpcm){@supports (-webkit-appearance: none){.go-Modal{padding-bottom:0}}}.go-Tree{--js-tree-height: 0;display:flex;flex-direction:column}.go-Tree ul{list-style:none;padding-left:0}.go-Tree li:last-of-type{padding-bottom:.25rem}.go-Tree a+ul{display:none}.go-Tree a[aria-expanded=true]+ul[role=group]{display:block}.go-Tree a[aria-level="1"]+ul[role=group]{max-height:calc(100vh - var(--js-tree-height, 0) - var(--js-sticky-header-height, 3.5rem) - 5rem);overflow-y:auto;padding:.5rem .25rem 0}.go-Tree a{color:var(--color-text-subtle);display:block;line-height:1.5rem;overflow:hidden;padding:.125rem 0 .125rem 1.25rem;position:relative;text-overflow:ellipsis;user-select:none;white-space:nowrap}.go-Tree>li>a,.go-Tree a[aria-level="1"]{display:block;font-size:1rem;font-weight:500;line-height:2.5rem;padding:0 1rem}.go-Tree a:focus,.go-Tree a:hover{text-decoration:underline;z-index:1}.go-Tree a[aria-selected=true]{color:var(--color-text);font-weight:500}.go-Tree a[aria-level="1"][aria-selected=true],.go-Tree a[aria-level="1"][aria-expanded=true]{background-color:var(--color-background-accented)}.go-Tree a[aria-level="3"][aria-expanded=true]{margin-bottom:.375em}.go-Tree a[aria-level="2"]{margin-bottom:.25rem;position:relative}.go-Tree a[aria-level="3"]{padding-left:2.5rem}.go-Tree a[aria-level="4"]{border-left:.125rem solid var(--color-background-accented);margin-left:2.5rem;padding-left:.5rem}.go-Tree a[aria-selected=true][aria-level="2"]:not([aria-expanded]):before,.go-Tree a[aria-selected=true][aria-level="3"]:not([aria-expanded]):before{background-color:var(--color-brand-primary);border-radius:50%;content:"";display:block;height:.3125rem;left:.4688rem;position:absolute;top:.75rem;width:.3125rem}.go-Tree a[aria-expanded][aria-owns][aria-level="2"]:before,.go-Tree a[aria-expanded][aria-owns][aria-level="3"]:before{border-bottom:.25rem solid transparent;border-left:.25rem solid var(--color-border);border-right:0;border-top:.25rem solid transparent;content:"";display:block;height:0;left:.5rem;position:absolute;top:.625rem;transition:transform .1s linear;width:0}.go-Tree a[aria-expanded=true][aria-level="2"]:before,.go-Tree a[aria-expanded=true][aria-level="3"]:before{transform:rotate(90deg)}.go-Tree a[aria-expanded][aria-level="3"]:not([empty]):before,.go-Tree a[aria-selected][aria-level="3"]:not([empty]):before{left:1.5rem;top:.75rem}.go-Tree a[aria-selected=true][aria-level="4"]{border-left:.125rem solid var(--color-brand-primary)}.go-TabNav{margin:0 0 .5rem}.go-TabNav ul{display:flex;gap:2rem}.go-TabNav li{border-bottom:.25rem transparent solid;display:flex;font-size:1rem;height:2.375rem;padding:0 .25rem}.go-TabNav li[aria-current],.go-TabNav li:hover{border-color:var(--color-brand-primary)}.go-TabNav a{align-items:center;color:var(--color-text-subtle);display:inline-flex}.go-TabNav li:hover a{text-decoration:none}.go-TabNav li[aria-current] a{color:var(--color-text)}.go-Tooltip{border-radius:var(--border-radius);cursor:pointer;display:inline-block;position:relative}.go-Tooltip>summary{list-style:none}.go-Tooltip>summary::-webkit-details-marker,.go-Tooltip>summary::marker{display:none}.go-Tooltip>summary>img{vertical-align:text-bottom}.go-Tooltip p{background:var(--color-background) 80%;border:var(--border);border-radius:var(--border-radius);color:var(--color-text);font-size:.75rem;letter-spacing:.01875rem;line-height:1rem;padding:.5rem;position:absolute;top:1.5rem;white-space:normal;width:12rem;z-index:100}:root{--gutter: 1.5rem;--gap: 1rem;--scroll-margin: calc( var(--js-sticky-header-height, 3.5rem) + var(--js-sticky-nav-height, 0) + 2rem );--border: .0625rem solid var(--color-border);--border-radius: .25rem;--box-shadow: 0 0 .375rem 0 rgb(0 0 0 / 25%);--focus-box-shadow: 0 0 .0625rem .0625rem rgb(0 112 210 / 60%)}[data-theme=dark]{--box-shadow: 0 .3125rem .9375rem rgb(0 0 0 / 45%)}@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--box-shadow: 0 .3125rem .9375rem rgb(0 0 0 / 45%)}}@media (min-width: 50rem){:root{--gap: 2rem;--scroll-margin: calc( var(--js-sticky-header-height, 3.5rem) + var(--js-sticky-nav-height, 0) + 1rem )}}*:target{scroll-margin-top:var(--scroll-margin)}body{background-color:var(--color-background);display:flex;flex-direction:column;min-height:100vh;min-width:23.5rem;-webkit-overflow-scrolling:touch}.go-Container{display:flex;flex-direction:column;flex-grow:1;height:100%;margin-bottom:5rem}.go-Content{display:flex;flex-flow:column;gap:1rem;margin:0 auto;max-width:63rem;min-height:32rem;padding:2rem var(--gutter);width:100%}.go-Content--center{justify-content:center;margin:auto}.JumpDialog-body{height:12rem;overflow-y:auto}.JumpDialog-list{display:flex;flex-direction:column}.JumpDialog-input{width:100%}.JumpDialog a{padding:.25rem;text-decoration:none}.JumpDialog .JumpDialog-active{background-color:var(--color-brand-primary);color:var(--white)}.ShortcutsDialog-key{text-align:right}.ShortcutsDialog table{padding:0 1rem}.ShortcutsDialog td{padding-bottom:.5rem;padding-left:.5rem}.ShortcutsDialog-theme span{display:none}[data-theme=light] .ShortcutsDialog-themeLight,[data-theme=dark] .ShortcutsDialog-themeDark,[data-theme=""] .ShortcutsDialog-themeAuto,[data-theme=auto] .ShortcutsDialog-themeAuto{display:initial}
+html,body,button,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6,hr,input,p,blockquote,pre,a,abbr,acronym,address,big,cite,code,del,dfn,dialog,em,img,ins,kbd,q,s,samp,small,strike,strong,sub,sup,tt,var,b,u,i,center,dl,dt,dd,ol,ul,li,fieldset,form,label,legend,table,caption,tbody,tfoot,thead,tr,th,td,article,aside,canvas,details,embed,figure,figcaption,footer,header,hgroup,menu,nav,output,ruby,section,summary,time,mark,audio,video{border:0;font:inherit;font-size:100%;margin:0;padding:0;vertical-align:baseline}article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section{display:block}body{line-height:1}ol,ul{list-style:none}blockquote,q{quotes:none}blockquote:before,blockquote:after,q:before,q:after{content:"";content:none}table{border-collapse:collapse;border-spacing:0}*,:before,:after{box-sizing:border-box}body{color:var(--color-text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:1rem;line-height:normal}h1{font-size:1.5rem}h2{font-size:1.375rem}h3{font-size:1.25rem}h4{font-size:1.125rem}h5{font-size:1rem}h6{font-size:.875rem}h1,h2,h3,h4{font-weight:600;line-height:1.25em;word-break:break-word}h5,h6{font-weight:500;line-height:1.3em;word-break:break-word}hr{border:none;border-bottom:var(--border);margin:0;width:100%}p{font-size:1rem;line-height:1.5rem;max-width:60rem}strong{font-weight:600}.go-textSubtle{color:var(--color-text-subtle)}.go-textTitle{font-size:1.125rem;font-weight:600;line-height:1.25rem}.go-textLabel{font-size:.875rem;font-weight:600;line-height:1rem}.go-textPagination{font-size:.875rem;line-height:1rem}code,pre,textarea.code{font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;font-size:.875rem;line-height:1.5em}pre,textarea.code{background-color:var(--color-background-accented);border:var(--border);border-radius:var(--border-radius);color:var(--color-text);overflow-x:auto;padding:.625rem;tab-size:4;white-space:pre}button,input,select,textarea{font:inherit}a,a:link,a:visited{color:var(--color-brand-primary);text-decoration:none}a:hover{color:var(--color-brand-primary);text-decoration:underline}a:hover>*{text-decoration:underline}button:focus:not([disabled]){border-color:var(--color-brand-primary);-webkit-box-shadow:var(--focus-box-shadow);box-shadow:var(--focus-box-shadow);outline:transparent}.go-Button{align-items:center;background-color:var(--color-button);border:.0625rem solid transparent;border-radius:var(--border-radius);color:var(--color-button-text);cursor:pointer;display:inline-flex;font-weight:500;gap:.25rem}.go-Button:not(.go-Button--inline){padding:.5rem}.go-Button--accented{background-color:var(--color-button-accented);color:var(--color-button-accented-text)}.go-Button--inverted,.go-Button--text,.go-Button--inline{background-color:var(--color-button-inverted);color:var(--color-button-inverted-text)}.go-Button--inline{background-color:transparent}.go-Button--inverted{border:var(--border)}.go-Button:hover{box-shadow:var(--focus-box-shadow);filter:contrast(.95)}.go-Button--inline:hover{box-shadow:none;text-decoration:underline var(--color-button-inverted-text)}.go-Button:focus{filter:contrast(.95)}.go-Button--inverted:focus{border-color:var(--color-button-inverted-text)}.go-Button:active{box-shadow:none;filter:contrast(.85)}.go-Button:disabled{background-color:var(--color-button-disabled);box-shadow:none;color:var(--color-button-text-disabled);cursor:initial;filter:none;text-decoration:none}.go-Button--accented:disabled{background-color:var(--color-button-accented-disabled);color:var(--color-button-accented-text-disabled)}.go-Button--inverted:disabled,.go-Button--text:disabled,.go-Button--inline:disabled{background-color:var(--color-button-inverted-disabled);color:var(--color-button-inverted-text-disabled)}.go-Button--inline:disabled{background-color:transparent}.go-Breadcrumb ol{line-height:1.5rem;white-space:initial}.go-Breadcrumb li{align-items:center;color:var(--color-text-subtle);display:inline-flex;font-size:.875rem}.go-Breadcrumb li:not(:last-child):after{content:">";padding:0 .5rem}.go-Breadcrumb li:last-child>a{color:var(--color-text-subtle)}.go-Breadcrumb li>.go-Clipboard{margin:0 .5rem}.go-Carousel{align-items:center;display:flex;flex-direction:column;position:relative;text-align:center}.go-Carousel-slide{margin:.5rem 3rem}.go-Carousel-slide[aria-hidden]{display:none}.go-Carousel-prevSlide{left:0}.go-Carousel-nextSlide{right:0}.go-Carousel-prevSlide,.go-Carousel-nextSlide{background-color:transparent;border-radius:var(--border-radius);font-size:1.5rem;height:2.75rem;margin-top:-1.375rem;opacity:0;position:absolute;top:50%;width:2.75rem}.go-Carousel-prevSlide:hover,.go-Carousel-nextSlide:hover{background-color:var(--color-background-accented);cursor:pointer}.go-Carousel:hover .go-Carousel-prevSlide,.go-Carousel:hover .go-Carousel-nextSlide,.go-Carousel:focus-within .go-Carousel-prevSlide,.go-Carousel:focus-within .go-Carousel-nextSlide{opacity:1}.go-Carousel-dots{display:flex;font-size:.4375rem;gap:.5rem}.go-Carousel-dot{background-color:var(--color-border);border-radius:2rem;height:.4375rem;width:.4375rem}.go-Carousel-dot--active,.go-Carousel-dot:hover{background-color:var(--color-text-subtle)}.go-Carousel-obscured{border:0;clip:rect(0 0 0 0);height:.0625rem;margin:-.0625rem;overflow:hidden;padding:0;position:absolute;width:.0625rem}.go-Chip{background:var(--color-button);border:.0625rem solid var(--color-button);border-radius:1.25rem;color:var(--color-button-text);font-size:.75rem;padding:.125rem .625rem}.go-Chip--accented{background:var(--color-button-accented);border:.0625rem solid var(--color-button-accented);color:var(--color-button-accented-text)}.go-Chip--inverted{background:var(--color-button-inverted);border:var(--border);color:var(--color-text)}.go-Chip--highlighted{background:var(--color-background-highlighted-link);border-color:var(--color-background-highlighted-link);color:var(--color-brand-primary)}.go-Chip--alert{background:var(--pink);border:.0625rem solid var(--pink);color:var(--color-text-inverted)}.go-Chip--vuln{background:var(--pink-light);border:.0625rem solid var(--pink-light);color:var(--color-text-inverted)}.go-Chip--subtle{background-color:var(--color-background-accented);border-color:transparent;color:var(--color-text-subtle)}.go-Clipboard{position:relative}.go-Clipboard:before{background-color:var(--color-background-inverted);border-radius:var(--border-radius);color:var(--color-text-inverted);content:attr(data-tooltip);display:block;font-size:.9em;left:calc(100% + .125rem);padding:.25rem .3rem;position:absolute;text-transform:uppercase;top:.125rem;white-space:nowrap;z-index:1000}.go-Clipboard:after{border-bottom:.25rem solid transparent;border-left:0;border-right:.25rem solid var(--color-background-inverted);border-top:.25rem solid transparent;content:"";display:block;position:absolute;right:-.125rem;top:.5625rem;z-index:1000}.go-Clipboard:not([data-tooltip]):before,.go-Clipboard:not([data-tooltip]):after,.go-Clipboard[data-tooltip=""]:before,.go-Clipboard[data-tooltip=""]:after{display:none}:root{--gray-1: #202224;--gray-2: #3e4042;--gray-3: #555759;--gray-4: #6e7072;--gray-5: #848688;--gray-6: #aaacae;--gray-7: #c6c8ca;--gray-8: #dcdee0;--gray-9: #f0f1f2;--gray-10: #f8f8f8;--turq-light: #5dc9e2;--turq-med: #50b7e0;--turq-dark: #007d9c;--blue: #bfeaf4;--blue-light: #f2fafd;--black: #000;--green: #3a6e11;--green-light: #5fda64;--pink: #c85e7a;--pink-light: #fdecf1;--purple: #542c7d;--slate: #253443;--white: #fff;--yellow: #fceea5;--yellow-light: #fff8cc;--color-brand-primary: var(--turq-dark);--color-background: var(--white);--color-background-inverted: var(--slate);--color-background-accented: var(--gray-10);--color-background-highlighted: var(--blue);--color-background-highlighted-link: var(--blue-light);--color-background-info: var(--gray-9);--color-background-warning: var(--yellow-light);--color-background-alert: var(--pink-light);--color-border: var(--gray-7);--color-text: var(--gray-1);--color-text-subtle: var(--gray-4);--color-text-link: var(--turq-dark);--color-text-inverted: var(--white);--color-code-comment: var(--green);--color-input: var(--color-background);--color-input-text: var(--color-text);--color-button: var(--turq-dark);--color-button-disabled: var(--gray-9);--color-button-text: var(--white);--color-button-text-disabled: var(--gray-3);--color-button-inverted: var(--color-background);--color-button-inverted-disabled: var(--color-background);--color-button-inverted-text: var(--color-brand-primary);--color-button-inverted-text-disabled: var(--color-text-subtle);--color-button-accented: var(--yellow);--color-button-accented-disabled: var(--gray-9);--color-button-accented-text: var(--gray-1);--color-button-accented-text-disabled: var(--gray-3)}[data-theme=dark]{--color-brand-primary: var(--turq-med);--color-background: var(--gray-1);--color-background-accented: var(--gray-2);--color-background-highlighted: var(--gray-2);--color-background-highlighted-link: var(--gray-2);--color-background-info: var(--gray-3);--color-background-warning: var(--yellow);--color-background-alert: var(--pink);--color-border: var(--gray-4);--color-text: var(--gray-9);--color-text-link: var(--turq-med);--color-text-subtle: var(--gray-7);--color-code-comment: var(--green-light)}@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--color-brand-primary: var(--turq-med);--color-background: var(--gray-1);--color-background-accented: var(--gray-2);--color-background-highlighted: var(--gray-2);--color-background-highlighted-link: var(--gray-2);--color-background-info: var(--gray-3);--color-background-warning: var(--yellow);--color-background-alert: var(--pink);--color-border: var(--gray-4);--color-text: var(--gray-9);--color-text-link: var(--turq-med);--color-text-subtle: var(--gray-7);--color-code-comment: var(--green-light)}}.go-Footer{background-color:var(--color-background-inverted);color:var(--color-text-inverted);font-size:.875rem;width:100%}.go-Footer-links{display:flex;flex-wrap:wrap;justify-content:space-between;margin:auto;max-width:75.75rem;padding:2rem 1.5rem 2.625rem}.go-Footer-linkColumn{flex:0 0 9.5rem}.go-Footer .go-Footer-link{color:var(--color-text-inverted);display:flex;flex:1;font-size:.875rem;line-height:2rem}.go-Footer .go-Footer-link--primary{font-size:1.125rem;line-height:1.75rem;margin-bottom:.5rem;margin-top:.75rem}.go-Footer-bottom{align-items:center;border-top:var(--border);display:flex;margin:0 1.5rem;min-height:4.125rem}.go-Footer-gopher{align-self:flex-end;height:3.147rem;width:5rem}.go-Footer-listRow{display:flex;flex:1;flex-wrap:wrap;list-style:none;margin:0;padding:0;text-align:center}.go-Footer-listItem{align-items:center;display:flex;flex:1 100%;justify-content:center;margin:.4rem 0;padding:0 1rem}.go-Footer-listItem a:link,.go-Footer-listItem a:visited{color:var(--color-text-inverted)}.go-Footer-listItem .go-Button--text{background-color:transparent;font-size:1rem;margin:-.5rem 0}.go-Footer-listItem [data-value]{display:none}[data-theme=auto] .go-Footer-listItem [data-value=auto],:root:not([data-theme]) .go-Footer-listItem [data-value=auto]{display:initial}[data-theme=dark] .go-Footer-listItem [data-value=dark],[data-theme=light] .go-Footer-listItem [data-value=light]{display:initial}.go-Footer-toggleTheme,.go-Footer-keyboard{margin:0 0 .5rem}.go-Footer-googleLogo{align-self:flex-end;height:1.5rem;margin-bottom:1.3rem;text-align:right}.go-Footer-googleLogoImg{height:1.5rem;width:4.529rem}@media only screen and (min-width: 52rem){.go-Footer-listItem{flex:initial}.go-Footer-listItem+.go-Footer-listItem{border-left:var(--border)}.go-Footer-toggleTheme{margin:0 0 0 -.5rem}.go-Footer-keyboard{margin:0}}select:focus:not([disabled]),input:focus:not([disabled]){border-color:var(--color-brand-primary);-webkit-box-shadow:var(--focus-box-shadow);box-shadow:var(--focus-box-shadow);outline:transparent;z-index:2}input::placeholder{color:var(--color-text-subtle)}.go-Form{align-items:start;display:flex;flex-direction:column;gap:1rem}.go-Label{display:flex;flex-direction:column;gap:.5rem}.go-Label--inline{align-items:center;flex-direction:row}.go-Label legend{margin-bottom:.5rem}.go-Label--inline legend{float:left;margin-bottom:0}.go-Input,.go-Select{background:var(--color-input);border:var(--border);border-radius:var(--border-radius);color:var(--color-input-text)}.go-Input{padding:.40625rem .5rem}.go-Select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:url(/static/shared/icon/arrow_drop_down_gm_grey_24dp.svg) right no-repeat;background-color:var(--color-background);background-position:right center;border-radius:var(--border-radius);margin:0;padding:.34375rem 1.25rem .34375rem .5rem}.go-InputGroup{display:flex}.go-InputGroup .go-Input{flex:1}.go-InputGroup>:not(:first-child,:last-child){border-radius:0;margin-left:-.0625rem}.go-InputGroup>:first-child{border-bottom-right-radius:0;border-top-right-radius:0}.go-InputGroup>:last-child{border-bottom-left-radius:0;border-top-left-radius:0;margin-left:-.0625rem}.go-InputGroup>*:hover,.go-InputGroup>*:focus{z-index:1}.go-ShortcutKey{display:flex;position:relative}.go-ShortcutKey .go-Input{flex-grow:1}.go-ShortcutKey:after{align-self:center;background-color:var(--color-background-accented);border-radius:.5rem;color:var(--gray-6);content:attr(data-shortcut);content:attr(data-shortcut) / attr(data-shortcut-alt);display:none;font-size:.75rem;padding:.0625rem 0;position:absolute;right:.75rem;text-align:center;width:1.5rem;z-index:1}@media only screen and (min-width: 52rem){.go-ShortcutKey:after{display:initial}}.go-GopherMessage img{display:block;height:15rem;margin:0 auto;padding:1.25rem 0;width:15rem}.go-GopherMessage p{font-weight:600;margin:auto;text-align:center}.go-Banner{background-color:var(--gray-1);display:none}.go-Banner-inner{align-items:center;display:flex;justify-content:space-between;margin:0 auto;min-height:2.5rem;padding:.5rem var(--gutter)}.Site--wide .go-Banner-inner{max-width:98rem}.go-Banner--full .go-Banner-inner{max-width:unset}.go-Banner-message{color:var(--white);margin-right:1.25rem}.go-Banner-action:link,.go-Banner-action:visited{color:var(--white);text-decoration:underline;white-space:nowrap}@media only screen and (min-width: 52rem){.go-Banner{display:block}}.go-Header{background:#007d9c;border-bottom:none;box-shadow:0 .0625rem .125rem #ababab4d;top:0;width:100%;z-index:10}.go-Header-inner{margin:0 auto;padding:0 var(--gutter)}.Site--wide .go-Header-inner{max-width:98rem}.go-Header--full .go-Header-inner{max-width:initial}.go-Header-nav{align-items:center;display:flex;height:3.5rem;justify-content:space-between}.go-Header-rightContent{align-items:center;display:flex;height:100%;justify-content:flex-end;width:100%}.go-Header-rightContent form{flex-grow:1}.go-Header-inner--dark{border-bottom:none;color:var(--white)}.go-Header-logo{display:block;height:2rem;margin-right:2.25rem;width:5.125rem}.go-Header-logo--hidden{display:none}.go-Header-menuItem{display:none;position:relative}.go-Header-menu{align-items:stretch;display:flex;height:100%;list-style:none;margin:0;padding:0}.go-Header-submenu{padding:1.5rem 1.5rem 0;list-style-type:none;background:transparent;visibility:hidden;opacity:0;display:none;transition:all .2s ease;margin-top:3.5rem;position:absolute;flex-direction:column;flex-wrap:wrap;color:var(--color-text);background-color:var(--color-background);border:.0625rem solid #007d9d;border-width:0 .0625rem .0625rem}.go-Header-menuItem:hover>.js-desktop-menu-hover:not(.forced-closed)~.go-Header-submenu,.go-Header-menuItem:focus-within>.js-desktop-menu-hover:not(.forced-closed)~.go-Header-submenu{visibility:visible;opacity:1;display:flex}.go-Header-menuItem .go-Header-submenuItem a:link,.go-Header-menuItem .go-Header-submenuItem a:visited{margin:0;margin-bottom:-.125rem;padding:0;border-bottom:none;font-weight:400;color:var(--color-text-link);display:inline-flex;align-items:baseline}.go-Header-menuItem .go-Icon{font-size:1.25rem;filter:brightness(0%) saturate(100%) invert(100%)}.go-Header-menuItem .go-Header-submenuItem .go-Icon,.go-NavigationDrawer-listItem .go-Icon{filter:brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(162deg) brightness(71%) contrast(177%)}.go-Header-submenu .go-Header-submenuItem i{margin-left:.25rem;transform:translateY(.1rem);font-size:.75rem}.go-Header-menu .go-Header-submenu--why{width:18.5rem;left:-1px}.go-Header-menu .go-Header-submenu--docs{left:-12rem;height:20.78rem;width:37.25rem}.go-Header-menu .go-Header-submenu--community{right:-1px;height:18.4rem;width:37.25rem}.go-Header-socialIcons{display:flex;flex-wrap:wrap}.go-Header-submenu .go-Header-submenuItem a.go-Header-socialIcon{flex:0 1 auto;display:inline-flex;width:auto}.go-Header-submenu .go-Header-submenuItem a.go-Header-socialIcon:not(:last-child){margin-right:.75rem}@media only screen and (min-width: 65rem){.go-Header-menuItem{align-items:stretch;display:inline-flex;flex:none}.go-Header-menu{justify-content:flex-end}.go-Header-navOpen{display:none}}.go-Header-menuItem .js-desktop-menu-hover img{pointer-events:none}.go-Header-menuItem a:link,.go-Header-menuItem a:visited{align-items:center;border-bottom:.1875rem solid transparent;border-top:.1875rem solid transparent;color:var(--color-text);display:inline-flex;padding:0 1.5rem;text-align:center;text-decoration:none;width:100%}.go-Header-menuItem--active a:link,.go-Header-menuItem--active a:visited{border-bottom-color:var(--turq-med);font-weight:700}.go-Header-menuItem a:hover{border-bottom-color:var(--white)}.go-Header-menuItem:hover>a:not(.forced-closed).js-desktop-menu-hover,.go-Header-menuItem:focus-within>a:not(.forced-closed).js-desktop-menu-hover{background:var(--white);color:var(--color-text-link);border-color:var(--white)}@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .go-Header-menuItem:hover>a:not(.forced-closed).js-desktop-menu-hover .go-Icon,:root:not([data-theme="light"]) .go-Header-menuItem:focus-within>a:not(.forced-closed).js-desktop-menu-hover .go-Icon{filter:brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(158deg) brightness(83%) contrast(157%)}:root:not([data-theme="light"]) .go-Header-submenuItem .go-Icon:not(.go-Icon--accented){filter:brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(163deg) brightness(80%) contrast(157%)}}.go-NavigationDrawer-listItem>div:not(.go-NavigationDrawer),.go-NavigationDrawer-listItem a:link,.go-NavigationDrawer-listItem a:visited{margin:0 1rem;padding:.5rem;display:block}.go-NavigationDrawer-listItem>span{color:var(--gray-2)}.go-Header-inner--dark .go-Header-menuItem a:link,.go-Header-inner--dark .go-Header-menuItem a:visited{color:var(--white)}.go-NavigationDrawer-listItem.go-NavigationDrawer-hasSubnav>a i{float:right}.go-Header-inner--dark .go-Header-menuItem .go-Header-submenuItem{color:var(--color-text-link)}.go-Header-inner--dark .go-Header-menuItem .js-desktop-menu-hover.is-expanded{color:var(--color-text-link);background-color:var(--white)}.go-Header-inner--dark .go-Header-menuItem .go-Header-submenu a:link,.go-Header-inner--dark .go-Header-menuItem .go-Header-submenu a:visited{color:var(--color-text-link);display:inline-flex;align-items:baseline;margin-bottom:-2px;width:auto}.go-Header-submenu .go-Header-submenuItem a:link,.go-Header-submenu .go-Header-submenuItem a:visited{margin:0;padding:0;border-bottom:none;font-weight:400}.go-Header-inner--dark .go-Header-menuItem:hover>a:not(.forced-closed).js-desktop-menu-hover,.go-Header-inner--dark .go-Header-menuItem:focus-within>a:not(.forced-closed).js-desktop-menu-hover{background:var(--color-background);border-color:var(--color-background)}.go-Header-submenu p{max-width:15.5rem}.go-Header-submenu a:link:hover,.go-Header-submenu a:visited:hover{border-bottom:2px solid var(--turq-dark);text-decoration:none}.go-Header-submenu a:link:hover>*,.go-Header-submenu a:visited:hover>*{text-decoration:none}.go-Header-submenu .go-Header-submenuItem{line-height:1;padding-bottom:1.5rem}.go-Header-submenu .go-Header-submenuItem p{font-size:.875rem;color:var(--color-text-subtle);margin-top:.55rem}.go-Header-inner--dark .go-Header-submenu .go-Header-submenuItem p{color:var(--color-text-subtle)}.go-Header-navOpen{background:no-repeat center/2rem url(/images/menu-24px.svg);border:none;height:2.5rem;margin-left:1rem;width:2.5rem}.go-Header-navOpen--hidden{display:none}.go-Header-navOpen--white{background:no-repeat center/2rem url(/static/shared/icon/menu_gm_grey_24dp.svg);filter:brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg) brightness(103%) contrast(107%)}.go-SearchForm--expanded{flex-grow:1}.go-SearchForm-form{display:none}.go-SearchForm-form:after{right:2.75rem}.go-SearchForm--expanded .go-SearchForm-form{display:flex}.go-SearchForm-expandSearch{appearance:none;background:none;font-size:1.5rem}.go-SearchForm--expanded .go-SearchForm-expandSearch{display:none}@media only screen and (min-width: 32rem){.go-Header-rightContent{width:100%}.go-SearchForm{flex:1}.go-SearchForm-form{display:flex}.go-SearchForm-expandSearch{display:none}.go-Header-logo--hidden{display:initial}}.go-NavigationDrawer{background:var(--color-background);height:100%;left:auto;max-width:27rem;position:fixed;right:0;top:0;transform:translate(100%);transition:transform .1s ease-in-out;width:85%;z-index:30}@media only screen and (min-width: 65rem){.go-NavigationDrawer{display:none}}.go-NavigationDrawer.is-active{transform:translate(0)}.go-NavigationDrawer-header{border-bottom:1px solid #eeeeee;margin-bottom:.5rem}.go-NavigationDrawer-submenuItem{width:100%}.go-NavigationDrawer-submenuItem .go-NavigationDrawer-header{min-height:4.0625rem;font-size:1.375rem;display:flex;align-items:center;justify-content:flex-start;padding:.5rem .5rem .5rem 1.5rem;color:var(--color-text-link)}.go-NavigationDrawer-submenuItem .go-NavigationDrawer-header>a{display:flex;margin-left:0}.go-NavigationDrawer-logo{display:block;height:2rem;margin:1rem;width:5.125rem}.go-NavigationDrawer-list{list-style:none;margin:0;padding:0}.go-NavigationDrawer-listItem{font-size:1.125rem;margin:0 .5rem;color:var(--color-text-subtle)}.go-NavigationDrawer-listItem--active{background-color:var(--blue);border-radius:.4rem}.go-NavigationDrawer-listItem .material-icons{color:var(--color-brand-primary);margin-right:.5rem;display:inline-block;vertical-align:sub;text-decoration:none}@media only screen and (max-width: 57.7rem){.go-NavigationDrawer-listItem .go-Header-socialIcons{padding:.5rem 0}.go-NavigationDrawer-listItem a.go-Header-socialIcon{padding:0 .5rem;margin:0;display:inline-block}@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .go-NavigationDrawer-listItem .go-Icon:not(.go-Icon--accented){filter:brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(163deg) brightness(80%) contrast(157%)}}}.go-NavigationDrawer-scrim{display:none;height:100%;left:0;position:fixed;top:0;width:100%;z-index:20}.go-NavigationDrawer.is-active+.go-NavigationDrawer-scrim{background-color:var(--gray-1);display:block;opacity:.32}.depsdev-Icon{height:1.125em;vertical-align:text-bottom;width:auto}.go-Icon{filter:none;height:1.125em;vertical-align:text-bottom;width:auto}.go-Icon--accented{filter:brightness(0) invert(45%) sepia(94%) saturate(6735%) hue-rotate(176deg) brightness(94%) contrast(101%)}.go-Icon--inverted{filter:brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg) brightness(103%) contrast(107%)}[data-theme=dark] .go-Icon:not(.go-Icon--accented){filter:brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg) brightness(103%) contrast(107%)}[data-theme=dark] .go-Icon--accented{filter:brightness(0) invert(69%) sepia(46%) saturate(466%) hue-rotate(153deg) brightness(90%) contrast(88%)}@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .go-Icon:not(.go-Icon--accented){filter:brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg) brightness(103%) contrast(107%)}:root:not([data-theme="light"]) .go-Icon--accented{filter:brightness(0) invert(57%) sepia(63%) saturate(4864%) hue-rotate(160deg) brightness(100%) contrast(101%)}}.go-Message{color:var(--color-text);font-size:.875rem;line-height:1.5rem;padding:.25rem .5rem;width:100%}.go-Message--notice{background-color:var(--color-background-info)}.go-Message--warning{background-color:var(--color-background-warning);color:var(--gray-1)}.go-Message--alert{background-color:var(--color-background-alert)}.go-Message>.go-Icon{vertical-align:text-top}[data-theme=dark] .go-Message a:not(:hover){color:var(--color-text);text-decoration:underline}[data-theme=dark] .go-Message--warning .go-Icon{filter:none}@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .go-Message--warning .go-Icon{filter:none}}dialog{position:absolute;left:0;right:0;width:-moz-fit-content;width:-webkit-fit-content;width:fit-content;height:-moz-fit-content;height:-webkit-fit-content;height:fit-content;margin:auto;border:solid;padding:1em;background:white;color:#000;display:block}dialog:not([open]){display:none}dialog+.backdrop{position:fixed;inset:0;background:rgba(0,0,0,.1)}._dialog_overlay{position:fixed;inset:0}dialog.fixed{position:fixed;top:50%;transform:translateY(-50%)}.go-Modal{background:var(--color-background);border:var(--border);border-radius:var(--border-radius);bottom:0;box-shadow:var(--box-shadow);color:var(--color-text);display:flex;flex-direction:column;gap:1rem;max-height:100%;max-width:100%;position:fixed;top:0}.go-Modal>form{display:contents}.go-Modal--small{width:20rem}.go-Modal--md{width:30rem}.go-Modal--lg{width:40rem}.go-Modal-header{display:flex;justify-content:space-between}.go-Modal-header h2{font-size:1.15rem;line-height:1.25rem}.go-Modal-body{flex-grow:1;min-height:2rem;min-width:18rem}.go-Modal-actions{text-align:right}@media not all and (min-resolution: .001dpcm){@supports (-webkit-appearance: none){.go-Modal{padding-bottom:0}}}.go-Tree{--js-tree-height: 0;display:flex;flex-direction:column}.go-Tree ul{list-style:none;padding-left:0}.go-Tree li:last-of-type{padding-bottom:.25rem}.go-Tree a+ul{display:none}.go-Tree a[aria-expanded=true]+ul[role=group]{display:block}.go-Tree a[aria-level="1"]+ul[role=group]{max-height:calc(100vh - var(--js-tree-height, 0) - var(--js-sticky-header-height, 3.5rem) - 5rem);overflow-y:auto;padding:.5rem .25rem 0}.go-Tree a{color:var(--color-text-subtle);display:block;line-height:1.5rem;overflow:hidden;padding:.125rem 0 .125rem 1.25rem;position:relative;text-overflow:ellipsis;user-select:none;white-space:nowrap}.go-Tree>li>a,.go-Tree a[aria-level="1"]{display:block;font-size:1rem;font-weight:500;line-height:2.5rem;padding:0 1rem}.go-Tree a:focus,.go-Tree a:hover{text-decoration:underline;z-index:1}.go-Tree a[aria-selected=true]{color:var(--color-text);font-weight:500}.go-Tree a[aria-level="1"][aria-selected=true],.go-Tree a[aria-level="1"][aria-expanded=true]{background-color:var(--color-background-accented)}.go-Tree a[aria-level="3"][aria-expanded=true]{margin-bottom:.375em}.go-Tree a[aria-level="2"]{margin-bottom:.25rem;position:relative}.go-Tree a[aria-level="3"]{padding-left:2.5rem}.go-Tree a[aria-level="4"]{border-left:.125rem solid var(--color-background-accented);margin-left:2.5rem;padding-left:.5rem}.go-Tree a[aria-selected=true][aria-level="2"]:not([aria-expanded]):before,.go-Tree a[aria-selected=true][aria-level="3"]:not([aria-expanded]):before{background-color:var(--color-brand-primary);border-radius:50%;content:"";display:block;height:.3125rem;left:.4688rem;position:absolute;top:.75rem;width:.3125rem}.go-Tree a[aria-expanded][aria-owns][aria-level="2"]:before,.go-Tree a[aria-expanded][aria-owns][aria-level="3"]:before{border-bottom:.25rem solid transparent;border-left:.25rem solid var(--color-border);border-right:0;border-top:.25rem solid transparent;content:"";display:block;height:0;left:.5rem;position:absolute;top:.625rem;transition:transform .1s linear;width:0}.go-Tree a[aria-expanded=true][aria-level="2"]:before,.go-Tree a[aria-expanded=true][aria-level="3"]:before{transform:rotate(90deg)}.go-Tree a[aria-expanded][aria-level="3"]:not([empty]):before,.go-Tree a[aria-selected][aria-level="3"]:not([empty]):before{left:1.5rem;top:.75rem}.go-Tree a[aria-selected=true][aria-level="4"]{border-left:.125rem solid var(--color-brand-primary)}.go-TabNav{margin:0 0 .5rem}.go-TabNav ul{display:flex;gap:2rem}.go-TabNav li{border-bottom:.25rem transparent solid;display:flex;font-size:1rem;height:2.375rem;padding:0 .25rem}.go-TabNav li[aria-current],.go-TabNav li:hover{border-color:var(--color-brand-primary)}.go-TabNav a{align-items:center;color:var(--color-text-subtle);display:inline-flex}.go-TabNav li:hover a{text-decoration:none}.go-TabNav li[aria-current] a{color:var(--color-text)}.go-Tooltip{border-radius:var(--border-radius);cursor:pointer;display:inline-block;position:relative}.go-Tooltip>summary{list-style:none}.go-Tooltip>summary::-webkit-details-marker,.go-Tooltip>summary::marker{display:none}.go-Tooltip>summary>img{vertical-align:text-bottom}.go-Tooltip p{background:var(--color-background) 80%;border:var(--border);border-radius:var(--border-radius);color:var(--color-text);font-size:.75rem;letter-spacing:.01875rem;line-height:1rem;padding:.5rem;position:absolute;top:1.5rem;white-space:normal;width:12rem;z-index:100}:root{--gutter: 1.5rem;--gap: 1rem;--scroll-margin: calc( var(--js-sticky-header-height, 3.5rem) + var(--js-sticky-nav-height, 0) + 2rem );--border: .0625rem solid var(--color-border);--border-radius: .25rem;--box-shadow: 0 0 .375rem 0 rgb(0 0 0 / 25%);--focus-box-shadow: 0 0 .0625rem .0625rem rgb(0 112 210 / 60%)}[data-theme=dark]{--box-shadow: 0 .3125rem .9375rem rgb(0 0 0 / 45%)}@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--box-shadow: 0 .3125rem .9375rem rgb(0 0 0 / 45%)}}@media (min-width: 50rem){:root{--gap: 2rem;--scroll-margin: calc( var(--js-sticky-header-height, 3.5rem) + var(--js-sticky-nav-height, 0) + 1rem )}}*:target{scroll-margin-top:var(--scroll-margin)}body{background-color:var(--color-background);display:flex;flex-direction:column;min-height:100vh;min-width:23.5rem;-webkit-overflow-scrolling:touch}.go-Container{display:flex;flex-direction:column;flex-grow:1;height:100%;margin-bottom:5rem}.go-Content{display:flex;flex-flow:column;gap:1rem;margin:0 auto;max-width:63rem;min-height:32rem;padding:2rem var(--gutter);width:100%}.go-Content--center{justify-content:center;margin:auto}.JumpDialog-body{height:12rem;overflow-y:auto}.JumpDialog-list{display:flex;flex-direction:column}.JumpDialog-input{width:100%}.JumpDialog a{padding:.25rem;text-decoration:none}.JumpDialog .JumpDialog-active{background-color:var(--color-brand-primary);color:var(--white)}.ShortcutsDialog-key{text-align:right}.ShortcutsDialog table{padding:0 1rem}.ShortcutsDialog td{padding-bottom:.5rem;padding-left:.5rem}.ShortcutsDialog-theme span{display:none}[data-theme=light] .ShortcutsDialog-themeLight,[data-theme=dark] .ShortcutsDialog-themeDark,[data-theme=""] .ShortcutsDialog-themeAuto,[data-theme=auto] .ShortcutsDialog-themeAuto{display:initial}
/*!
* Copyright 2020 The Go Authors. All rights reserved.
* Use of this source code is governed by a BSD-style
diff --git a/static/frontend/frontend.min.css.map b/static/frontend/frontend.min.css.map
index 93dcb2a..420446c 100644
--- a/static/frontend/frontend.min.css.map
+++ b/static/frontend/frontend.min.css.map
@@ -1,7 +1,7 @@
{
"version": 3,
"sources": ["../shared/reset.css", "../shared/typography/typography.css", "../shared/button/button.css", "../shared/breadcrumb/breadcrumb.css", "../shared/carousel/carousel.css", "../shared/chip/chip.css", "../shared/clipboard/clipboard.css", "../shared/color/color.css", "../shared/footer/footer.css", "../shared/form/form.css", "../shared/gopher/gopher.css", "../shared/header/header.css", "../shared/icon/icon.css", "../shared/message/message.css", "../../third_party/dialog-polyfill/dialog-polyfill.css", "../shared/modal/modal.css", "../shared/outline/tree.css", "../shared/tabnav/tabnav.css", "../shared/tooltip/tooltip.css", "../shared/shared.css", "_modals.css"],
- "sourcesContent": ["/*!\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 * http://meyerweb.com/eric/tools/css/reset/\n * v2.0 | 20110126\n * License: none (public domain)\n */\n\nhtml,\nbody,\nbutton,\ndiv,\nspan,\napplet,\nobject,\niframe,\nh1,\nh2,\nh3,\nh4,\nh5,\nh6,\nhr,\ninput,\np,\nblockquote,\npre,\na,\nabbr,\nacronym,\naddress,\nbig,\ncite,\ncode,\ndel,\ndfn,\ndialog,\nem,\nimg,\nins,\nkbd,\nq,\ns,\nsamp,\nsmall,\nstrike,\nstrong,\nsub,\nsup,\ntt,\nvar,\nb,\nu,\ni,\ncenter,\ndl,\ndt,\ndd,\nol,\nul,\nli,\nfieldset,\nform,\nlabel,\nlegend,\ntable,\ncaption,\ntbody,\ntfoot,\nthead,\ntr,\nth,\ntd,\narticle,\naside,\ncanvas,\ndetails,\nembed,\nfigure,\nfigcaption,\nfooter,\nheader,\nhgroup,\nmenu,\nnav,\noutput,\nruby,\nsection,\nsummary,\ntime,\nmark,\naudio,\nvideo {\n border: 0;\n font: inherit;\n font-size: 100%;\n margin: 0;\n padding: 0;\n vertical-align: baseline;\n}\n\n/* HTML5 display-role reset for older browsers */\narticle,\naside,\ndetails,\nfigcaption,\nfigure,\nfooter,\nheader,\nhgroup,\nmenu,\nnav,\nsection {\n display: block;\n}\n\nbody {\n line-height: 1;\n}\n\nol,\nul {\n list-style: none;\n}\n\nblockquote,\nq {\n quotes: none;\n}\n\nblockquote::before,\nblockquote::after,\nq::before,\nq::after {\n content: '';\n content: none;\n}\n\ntable {\n border-collapse: collapse;\n border-spacing: 0;\n}\n\n*,\n::before,\n::after {\n box-sizing: border-box;\n}\n", "/*!\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\nbody {\n color: var(--color-text);\n font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif,\n 'Apple Color Emoji', 'Segoe UI Emoji';\n font-size: 1rem;\n line-height: normal;\n}\nh1 {\n font-size: 1.5rem;\n}\nh2 {\n font-size: 1.375rem;\n}\nh3 {\n font-size: 1.25rem;\n}\nh4 {\n font-size: 1.125rem;\n}\nh5 {\n font-size: 1rem;\n}\nh6 {\n font-size: 0.875rem;\n}\n\nh1,\nh2,\nh3,\nh4 {\n font-weight: 600;\n line-height: 1.25em;\n word-break: break-word;\n}\nh5,\nh6 {\n font-weight: 500;\n line-height: 1.3em;\n word-break: break-word;\n}\n\nhr {\n border: none;\n border-bottom: var(--border);\n margin: 0;\n width: 100%;\n}\n\np {\n font-size: 1rem;\n line-height: 1.5rem;\n max-width: 60rem;\n}\nstrong {\n font-weight: 600;\n}\n\n.go-textSubtle {\n color: var(--color-text-subtle);\n}\n.go-textTitle {\n font-size: 1.125rem;\n font-weight: 600;\n line-height: 1.25rem;\n}\n.go-textLabel {\n font-size: 0.875rem;\n font-weight: 600;\n line-height: 1rem;\n}\n.go-textPagination {\n font-size: 0.875rem;\n line-height: 1rem;\n}\ncode,\npre,\ntextarea.code {\n font-family: SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace;\n font-size: 0.875rem;\n line-height: 1.5em;\n}\npre,\ntextarea.code {\n background-color: var(--color-background-accented);\n border: var(--border);\n border-radius: var(--border-radius);\n color: var(--color-text);\n overflow-x: auto;\n padding: 0.625rem;\n tab-size: 4;\n white-space: pre;\n}\n\nbutton,\ninput,\nselect,\ntextarea {\n font: inherit;\n}\n\na,\na:link,\na:visited {\n color: var(--color-brand-primary);\n text-decoration: none;\n}\na:hover {\n color: var(--color-brand-primary);\n text-decoration: underline;\n}\na:hover > * {\n text-decoration: underline;\n}\n", "/*!\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\nbutton:focus:not([disabled]) {\n border-color: var(--color-brand-primary);\n -webkit-box-shadow: var(--focus-box-shadow);\n box-shadow: var(--focus-box-shadow);\n outline: transparent;\n}\n\n.go-Button {\n align-items: center;\n background-color: var(--color-button);\n border: 0.0625rem solid transparent;\n border-radius: var(--border-radius);\n color: var(--color-button-text);\n cursor: pointer;\n display: inline-flex;\n font-weight: 500;\n gap: 0.25rem;\n}\n.go-Button:not(.go-Button--inline) {\n padding: 0.5rem;\n}\n\n.go-Button--accented {\n background-color: var(--color-button-accented);\n color: var(--color-button-accented-text);\n}\n.go-Button--inverted,\n.go-Button--text,\n.go-Button--inline {\n background-color: var(--color-button-inverted);\n color: var(--color-button-inverted-text);\n}\n.go-Button--inline {\n background-color: transparent;\n}\n\n.go-Button--inverted {\n border: var(--border);\n}\n\n.go-Button:hover {\n box-shadow: var(--focus-box-shadow);\n filter: contrast(0.95);\n}\n.go-Button--inline:hover {\n box-shadow: none;\n text-decoration: underline var(--color-button-inverted-text);\n}\n.go-Button:focus {\n filter: contrast(0.95);\n}\n.go-Button--inverted:focus {\n border-color: var(--color-button-inverted-text);\n}\n.go-Button:active {\n box-shadow: none;\n filter: contrast(0.85);\n}\n\n.go-Button:disabled {\n background-color: var(--color-button-disabled);\n box-shadow: none;\n color: var(--color-button-text-disabled);\n cursor: initial;\n filter: none;\n text-decoration: none;\n}\n.go-Button--accented:disabled {\n background-color: var(--color-button-accented-disabled);\n color: var(--color-button-accented-text-disabled);\n}\n.go-Button--inverted:disabled,\n.go-Button--text:disabled,\n.go-Button--inline:disabled {\n background-color: var(--color-button-inverted-disabled);\n color: var(--color-button-inverted-text-disabled);\n}\n.go-Button--inline:disabled {\n background-color: transparent;\n}\n", "/*!\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.go-Breadcrumb ol {\n line-height: 1.5rem;\n white-space: initial;\n}\n.go-Breadcrumb li {\n align-items: center;\n color: var(--color-text-subtle);\n display: inline-flex;\n font-size: 0.875rem;\n}\n.go-Breadcrumb li:not(:last-child)::after {\n content: '>';\n padding: 0 0.5rem;\n}\n.go-Breadcrumb li:last-child > a {\n color: var(--color-text-subtle);\n}\n.go-Breadcrumb li > .go-Clipboard {\n margin: 0 0.5rem;\n}\n", "/*!\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.go-Carousel {\n align-items: center;\n display: flex;\n flex-direction: column;\n position: relative;\n text-align: center;\n}\n.go-Carousel-slide {\n margin: 0.5rem 3rem;\n}\n.go-Carousel-slide[aria-hidden] {\n display: none;\n}\n.go-Carousel-prevSlide {\n left: 0;\n}\n.go-Carousel-nextSlide {\n right: 0;\n}\n.go-Carousel-prevSlide,\n.go-Carousel-nextSlide {\n background-color: transparent;\n border-radius: var(--border-radius);\n font-size: 1.5rem;\n height: 2.75rem;\n margin-top: -1.375rem;\n opacity: 0;\n position: absolute;\n top: 50%;\n width: 2.75rem;\n}\n.go-Carousel-prevSlide:hover,\n.go-Carousel-nextSlide:hover {\n background-color: var(--color-background-accented);\n cursor: pointer;\n}\n.go-Carousel:hover .go-Carousel-prevSlide,\n.go-Carousel:hover .go-Carousel-nextSlide,\n.go-Carousel:focus-within .go-Carousel-prevSlide,\n.go-Carousel:focus-within .go-Carousel-nextSlide {\n opacity: 1;\n}\n.go-Carousel-dots {\n display: flex;\n font-size: 0.4375rem;\n gap: 0.5rem;\n}\n.go-Carousel-dot {\n background-color: var(--color-border);\n border-radius: 2rem;\n height: 0.4375rem;\n width: 0.4375rem;\n}\n.go-Carousel-dot--active,\n.go-Carousel-dot:hover {\n background-color: var(--color-text-subtle);\n}\n.go-Carousel-obscured {\n border: 0;\n clip: rect(0 0 0 0);\n height: 0.0625rem;\n margin: -0.0625rem;\n overflow: hidden;\n padding: 0;\n position: absolute;\n width: 0.0625rem;\n}\n", "/*!\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.go-Chip {\n background: var(--color-button);\n border: 0.0625rem solid var(--color-button);\n border-radius: 1.25rem;\n color: var(--color-button-text);\n font-size: 0.75rem;\n padding: 0.125rem 0.625rem;\n}\n.go-Chip--accented {\n background: var(--color-button-accented);\n border: 0.0625rem solid var(--color-button-accented);\n color: var(--color-button-accented-text);\n}\n.go-Chip--inverted {\n background: var(--color-button-inverted);\n border: var(--border);\n color: var(--color-text);\n}\n.go-Chip--highlighted {\n background: var(--color-background-highlighted-link);\n border-color: var(--color-background-highlighted-link);\n color: var(--color-brand-primary);\n}\n.go-Chip--alert {\n background: var(--pink);\n border: 0.0625rem solid var(--pink);\n color: var(--color-text-inverted);\n}\n.go-Chip--vuln {\n background: var(--pink-light);\n border: 0.0625rem solid var(--pink-light);\n color: var(--color-text-inverted);\n}\n.go-Chip--subtle {\n background-color: var(--color-background-accented);\n border-color: transparent;\n color: var(--color-text-subtle);\n}\n", "/*!\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.go-Clipboard {\n position: relative;\n}\n.go-Clipboard::before {\n background-color: var(--color-background-inverted);\n border-radius: var(--border-radius);\n color: var(--color-text-inverted);\n content: attr(data-tooltip);\n display: block;\n font-size: 0.9em;\n left: calc(100% + 0.125rem);\n padding: 0.25rem 0.3rem;\n position: absolute;\n text-transform: uppercase;\n top: 0.125rem;\n white-space: nowrap;\n z-index: 1000;\n}\n.go-Clipboard::after {\n border-bottom: 0.25rem solid transparent;\n border-left: 0;\n border-right: 0.25rem solid var(--color-background-inverted);\n border-top: 0.25rem solid transparent;\n content: '';\n display: block;\n position: absolute;\n right: -0.125rem;\n top: 0.5625rem;\n z-index: 1000;\n}\n.go-Clipboard:not([data-tooltip])::before,\n.go-Clipboard:not([data-tooltip])::after,\n.go-Clipboard[data-tooltip='']::before,\n.go-Clipboard[data-tooltip='']::after {\n display: none;\n}\n", "/*!\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:root {\n /* Colors */\n --gray-1: #202224;\n --gray-2: #3e4042;\n --gray-3: #555759;\n --gray-4: #6e7072;\n --gray-5: #848688;\n --gray-6: #aaacae;\n --gray-7: #c6c8ca;\n --gray-8: #dcdee0;\n --gray-9: #f0f1f2;\n --gray-10: #f8f8f8;\n --turq-light: #5dc9e2;\n --turq-med: #50b7e0;\n --turq-dark: #007d9c;\n --blue: #bfeaf4;\n --blue-light: #f2fafd;\n --black: #000;\n --green: #3a6e11;\n --green-light: #5fda64;\n --pink: #c85e7a;\n --pink-light: #fdecf1;\n --purple: #542c7d;\n --slate: #253443; /* Footer background. */\n --white: #fff;\n --yellow: #fceea5;\n --yellow-light: #fff8cc;\n\n /* Color Intents */\n --color-brand-primary: var(--turq-dark);\n --color-background: var(--white);\n --color-background-inverted: var(--slate);\n --color-background-accented: var(--gray-10);\n --color-background-highlighted: var(--blue);\n --color-background-highlighted-link: var(--blue-light);\n --color-background-info: var(--gray-9);\n --color-background-warning: var(--yellow-light);\n --color-background-alert: var(--pink-light);\n --color-border: var(--gray-7);\n --color-text: var(--gray-1);\n --color-text-subtle: var(--gray-4);\n --color-text-link: var(--turq-dark);\n --color-text-inverted: var(--white);\n --color-code-comment: var(--green);\n\n /* Interactive Colors */\n --color-input: var(--color-background);\n --color-input-text: var(--color-text);\n --color-button: var(--turq-dark);\n --color-button-disabled: var(--gray-9);\n --color-button-text: var(--white);\n --color-button-text-disabled: var(--gray-3);\n --color-button-inverted: var(--color-background);\n --color-button-inverted-disabled: var(--color-background);\n --color-button-inverted-text: var(--color-brand-primary);\n --color-button-inverted-text-disabled: var(--color-text-subtle);\n --color-button-accented: var(--yellow);\n --color-button-accented-disabled: var(--gray-9);\n --color-button-accented-text: var(--gray-1);\n --color-button-accented-text-disabled: var(--gray-3);\n}\n\n[data-theme='dark'] {\n --color-brand-primary: var(--turq-med);\n --color-background: var(--gray-1);\n --color-background-accented: var(--gray-2);\n --color-background-highlighted: var(--gray-2);\n --color-background-highlighted-link: var(--gray-2);\n --color-background-info: var(--gray-3);\n --color-background-warning: var(--yellow);\n --color-background-alert: var(--pink);\n --color-border: var(--gray-4);\n --color-text: var(--gray-9);\n --color-text-link: var(--turq-med);\n --color-text-subtle: var(--gray-7);\n --color-code-comment: var(--green-light);\n}\n@media (prefers-color-scheme: dark) {\n :root:not([data-theme='light']) {\n --color-brand-primary: var(--turq-med);\n --color-background: var(--gray-1);\n --color-background-accented: var(--gray-2);\n --color-background-highlighted: var(--gray-2);\n --color-background-highlighted-link: var(--gray-2);\n --color-background-info: var(--gray-3);\n --color-background-warning: var(--yellow);\n --color-background-alert: var(--pink);\n --color-border: var(--gray-4);\n --color-text: var(--gray-9);\n --color-text-link: var(--turq-med);\n --color-text-subtle: var(--gray-7);\n --color-code-comment: var(--green-light);\n }\n}\n", "/*!\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.go-Footer {\n background-color: var(--color-background-inverted);\n color: var(--color-text-inverted);\n font-size: 0.875rem;\n width: 100%;\n}\n.go-Footer-links {\n display: flex;\n flex-wrap: wrap;\n justify-content: space-between;\n margin: auto;\n max-width: 75.75rem;\n padding: 2rem 1.5rem 2.625rem 1.5rem;\n}\n.go-Footer-linkColumn {\n flex: 0 0 9.5rem;\n}\n.go-Footer .go-Footer-link {\n color: var(--color-text-inverted);\n display: flex;\n flex: 1;\n font-size: 0.875rem;\n line-height: 2rem;\n}\n.go-Footer .go-Footer-link--primary {\n font-size: 1.125rem;\n line-height: 1.75rem;\n margin-bottom: 0.5rem;\n margin-top: 0.75rem;\n}\n.go-Footer-bottom {\n align-items: center;\n border-top: var(--border);\n display: flex;\n margin: 0 1.5rem;\n min-height: 4.125rem;\n}\n.go-Footer-gopher {\n align-self: flex-end;\n height: 3.147rem;\n width: 5rem;\n}\n.go-Footer-listRow {\n display: flex;\n flex: 1;\n flex-wrap: wrap;\n list-style: none;\n margin: 0;\n padding: 0;\n text-align: center;\n}\n.go-Footer-listItem {\n align-items: center;\n display: flex;\n flex: 1 100%;\n justify-content: center;\n margin: 0.4rem 0;\n padding: 0 1rem;\n}\n.go-Footer-listItem a:link,\n.go-Footer-listItem a:visited {\n color: var(--color-text-inverted);\n}\n.go-Footer-listItem .go-Button--text {\n background-color: transparent;\n font-size: 1rem;\n margin: -0.5rem 0;\n}\n.go-Footer-listItem [data-value] {\n display: none;\n}\n\n[data-theme='auto'] .go-Footer-listItem [data-value='auto'],\n:root:not([data-theme]) .go-Footer-listItem [data-value='auto'] {\n display: initial;\n}\n[data-theme='dark'] .go-Footer-listItem [data-value='dark'] {\n display: initial;\n}\n[data-theme='light'] .go-Footer-listItem [data-value='light'] {\n display: initial;\n}\n.go-Footer-toggleTheme,\n.go-Footer-keyboard {\n margin: 0 0 0.5rem 0;\n}\n\n.go-Footer-googleLogo {\n align-self: flex-end;\n height: 1.5rem;\n margin-bottom: 1.3rem;\n text-align: right;\n}\n.go-Footer-googleLogoImg {\n height: 1.5rem;\n width: 4.529rem;\n}\n\n@media only screen and (min-width: 52rem) {\n .go-Footer-listItem {\n flex: initial;\n }\n .go-Footer-listItem + .go-Footer-listItem {\n border-left: var(--border);\n }\n .go-Footer-toggleTheme {\n margin: 0 0 0 -0.5rem;\n }\n .go-Footer-keyboard {\n margin: 0;\n }\n}\n", "/*!\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\nselect:focus:not([disabled]),\ninput:focus:not([disabled]) {\n border-color: var(--color-brand-primary);\n -webkit-box-shadow: var(--focus-box-shadow);\n box-shadow: var(--focus-box-shadow);\n outline: transparent;\n z-index: 2;\n}\n\ninput::placeholder {\n color: var(--color-text-subtle);\n}\n\n.go-Form {\n align-items: start;\n display: flex;\n flex-direction: column;\n gap: 1rem;\n}\n\n.go-Label {\n display: flex;\n flex-direction: column;\n gap: 0.5rem;\n}\n.go-Label--inline {\n align-items: center;\n flex-direction: row;\n}\n.go-Label legend {\n margin-bottom: 0.5rem;\n}\n.go-Label--inline legend {\n float: left;\n margin-bottom: 0;\n}\n.go-Input,\n.go-Select {\n background: var(--color-input);\n border: var(--border);\n border-radius: var(--border-radius);\n color: var(--color-input-text);\n}\n.go-Input {\n padding: 0.40625rem 0.5rem;\n}\n.go-Select {\n -webkit-appearance: none;\n -moz-appearance: none;\n appearance: none;\n background: url('/static/shared/icon/arrow_drop_down_gm_grey_24dp.svg') right no-repeat;\n background-color: var(--color-background);\n background-position: right center;\n border-radius: var(--border-radius);\n margin: 0;\n padding: 0.34375rem 1.25rem 0.34375rem 0.5rem;\n}\n\n.go-InputGroup {\n display: flex;\n}\n.go-InputGroup .go-Input {\n flex: 1;\n}\n.go-InputGroup > :not(:first-child, :last-child) {\n border-radius: 0;\n margin-left: -0.0625rem;\n}\n.go-InputGroup > :first-child {\n border-bottom-right-radius: 0;\n border-top-right-radius: 0;\n}\n.go-InputGroup > :last-child {\n border-bottom-left-radius: 0;\n border-top-left-radius: 0;\n margin-left: -0.0625rem;\n}\n.go-InputGroup > *:hover,\n.go-InputGroup > *:focus {\n z-index: 1;\n}\n\n.go-ShortcutKey {\n display: flex;\n position: relative;\n}\n.go-ShortcutKey .go-Input {\n flex-grow: 1;\n}\n.go-ShortcutKey::after {\n align-self: center;\n background-color: var(--color-background-accented);\n border-radius: 0.5rem;\n color: var(--gray-6);\n content: attr(data-shortcut);\n content: attr(data-shortcut) / attr(data-shortcut-alt);\n display: none;\n font-size: 0.75rem;\n padding: 0.0625rem 0;\n position: absolute;\n right: 0.75rem;\n text-align: center;\n width: 1.5rem;\n z-index: 1;\n}\n@media only screen and (min-width: 52rem) {\n .go-ShortcutKey::after {\n display: 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.go-GopherMessage img {\n display: block;\n height: 15rem;\n margin: 0 auto;\n padding: 1.25rem 0;\n width: 15rem;\n}\n.go-GopherMessage p {\n font-weight: 600;\n margin: auto;\n text-align: center;\n}\n", "/*!\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.go-Banner {\n background-color: var(--gray-1);\n\n /**\n * Only show on wide viewports so the\n * text never wraps or gets cut off.\n */\n display: none;\n}\n.go-Banner-inner {\n align-items: center;\n display: flex;\n justify-content: space-between;\n margin: 0 auto;\n min-height: 2.5rem;\n padding: 0.5rem var(--gutter);\n}\n.Site--wide .go-Banner-inner {\n max-width: 98rem;\n}\n.go-Banner--full .go-Banner-inner {\n max-width: unset;\n}\n.go-Banner-message {\n color: var(--white);\n margin-right: 1.25rem;\n}\n.go-Banner-action:link,\n.go-Banner-action:visited {\n color: var(--white);\n text-decoration: underline;\n white-space: nowrap;\n}\n@media only screen and (min-width: 52rem) {\n .go-Banner {\n display: block;\n }\n}\n\n.go-Header {\n background: #007d9c;\n border-bottom: none;\n box-shadow: 0 0.0625rem 0.125rem rgba(171, 171, 171, 0.3);\n top: 0;\n width: 100%;\n z-index: 10;\n}\n.go-Header-inner {\n margin: 0 auto;\n padding: 0 var(--gutter);\n}\n.Site--wide .go-Header-inner {\n max-width: 98rem;\n}\n.go-Header--full .go-Header-inner {\n max-width: initial;\n}\n.go-Header-nav {\n align-items: center;\n display: flex;\n height: 3.5rem;\n justify-content: space-between;\n}\n.go-Header-rightContent {\n align-items: center;\n display: flex;\n height: 100%;\n justify-content: flex-end;\n width: 100%;\n}\n.go-Header-rightContent form {\n flex-grow: 1;\n}\n.go-Header-inner--dark {\n border-bottom: none;\n color: var(--white);\n}\n\n.go-Header-logo {\n display: block;\n height: 2rem;\n margin-right: 2.25rem;\n width: 5.125rem;\n}\n.go-Header-logo--hidden {\n display: none;\n}\n.go-Header-menuItem {\n display: none;\n position: relative;\n}\n.go-Header-menu {\n align-items: stretch;\n display: flex;\n height: 100%;\n list-style: none;\n margin: 0;\n padding: 0;\n}\n\n.go-Header-submenu {\n padding: 1.5rem 1.5rem 0;\n list-style-type: none;\n background: transparent;\n visibility: hidden;\n opacity: 0;\n display: none;\n transition: all 0.2s ease;\n margin-top: 3.5rem;\n position: absolute;\n flex-direction: column;\n flex-wrap: wrap;\n color: var(--color-text);\n background-color: var(--color-background);\n border: 0.0625rem solid #007d9d;\n border-width: 0 0.0625rem 0.0625rem;\n}\n\n.go-Header-menuItem:hover > .js-desktop-menu-hover:not(.forced-closed) ~ .go-Header-submenu,\n.go-Header-menuItem:focus-within > .js-desktop-menu-hover:not(.forced-closed) ~ .go-Header-submenu {\n visibility: visible;\n opacity: 1;\n display: flex;\n}\n.go-Header-menuItem .go-Header-submenuItem a:link,\n.go-Header-menuItem .go-Header-submenuItem a:visited {\n margin: 0;\n margin-bottom: -0.125rem;\n padding: 0;\n border-bottom: none;\n font-weight: 400;\n color: var(--color-text-link);\n display: inline-flex;\n align-items: baseline;\n}\n.go-Header-menuItem .go-Icon {\n font-size: 1.25rem;\n filter: brightness(0%) saturate(100%) invert(100%);\n}\n.go-Header-menuItem .go-Header-submenuItem .go-Icon,\n.go-NavigationDrawer-listItem .go-Icon {\n filter: brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(162deg)\n brightness(71%) contrast(177%);\n}\n\n.go-Header-submenu .go-Header-submenuItem i {\n margin-left: 0.25rem;\n transform: translateY(0.1rem); /* to get bottom alignment w/ text */\n font-size: 0.75rem;\n}\n\n.go-Header-menu .go-Header-submenu--why {\n width: 18.5rem;\n left: -1px;\n}\n.go-Header-menu .go-Header-submenu--docs {\n left: -12rem;\n height: 20.78rem;\n width: 37.25rem;\n}\n.go-Header-menu .go-Header-submenu--community {\n right: -1px;\n height: 18.4rem;\n width: 37.25rem;\n}\n.go-Header-socialIcons {\n display: flex;\n flex-wrap: wrap;\n}\n.go-Header-submenu .go-Header-submenuItem a.go-Header-socialIcon {\n flex: 0 1 auto;\n display: inline-flex;\n width: auto;\n}\n.go-Header-submenu .go-Header-submenuItem a.go-Header-socialIcon:not(:last-child) {\n margin-right: 0.75rem;\n}\n@media only screen and (min-width: 65rem) {\n .go-Header-menuItem {\n align-items: stretch;\n display: inline-flex;\n flex: none;\n }\n .go-Header-menu {\n justify-content: flex-end;\n }\n .go-Header-navOpen {\n display: none;\n }\n}\n\n.go-Header-menuItem .js-desktop-menu-hover img {\n pointer-events: none;\n}\n.go-Header-menuItem a:link,\n.go-Header-menuItem a:visited {\n align-items: center;\n border-bottom: 0.1875rem solid transparent;\n border-top: 0.1875rem solid transparent; /* To ensure the text remains centered. */\n color: var(--color-text);\n display: inline-flex;\n padding: 0 1.5rem;\n text-align: center;\n text-decoration: none;\n width: 100%;\n}\n.go-Header-menuItem--active a:link,\n.go-Header-menuItem--active a:visited {\n border-bottom-color: var(--turq-med);\n font-weight: bold;\n}\n.go-Header-menuItem a:hover {\n border-bottom-color: var(--white);\n}\n.go-Header-menuItem:hover > a:not(.forced-closed).js-desktop-menu-hover,\n.go-Header-menuItem:focus-within > a:not(.forced-closed).js-desktop-menu-hover {\n background: var(--white);\n color: var(--color-text-link);\n border-color: var(--white);\n}\n\n/* Need to get around icon.css color management */\n@media (prefers-color-scheme: dark) {\n :root:not([data-theme='light'])\n .go-Header-menuItem:hover\n > a:not(.forced-closed).js-desktop-menu-hover\n .go-Icon,\n :root:not([data-theme='light'])\n .go-Header-menuItem:focus-within\n > a:not(.forced-closed).js-desktop-menu-hover\n .go-Icon {\n filter: brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(158deg)\n brightness(83%) contrast(157%);\n }\n :root:not([data-theme='light']) .go-Header-submenuItem .go-Icon:not(.go-Icon--accented) {\n filter: brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(163deg)\n brightness(80%) contrast(157%);\n }\n}\n.go-NavigationDrawer-listItem > div:not(.go-NavigationDrawer),\n.go-NavigationDrawer-listItem a:link,\n.go-NavigationDrawer-listItem a:visited {\n margin: 0 1rem;\n padding: 0.5rem;\n display: block;\n}\n\n.go-NavigationDrawer-listItem > span {\n color: var(--gray-2);\n}\n.go-Header-inner--dark .go-Header-menuItem a:link,\n.go-Header-inner--dark .go-Header-menuItem a:visited {\n color: var(--white);\n}\n.go-NavigationDrawer-listItem.go-NavigationDrawer-hasSubnav > a i {\n float: right;\n}\n.go-Header-inner--dark .go-Header-menuItem .go-Header-submenuItem {\n color: var(--color-text-link);\n}\n.go-Header-inner--dark .go-Header-menuItem .js-desktop-menu-hover.is-expanded {\n color: var(--color-text-link);\n background-color: var(--white);\n}\n.go-Header-inner--dark .go-Header-menuItem .go-Header-submenu a:link,\n.go-Header-inner--dark .go-Header-menuItem .go-Header-submenu a:visited {\n color: var(--color-text-link);\n display: inline-flex;\n align-items: baseline;\n margin-bottom: -2px;\n width: auto;\n}\n.go-Header-submenu .go-Header-submenuItem a:link,\n.go-Header-submenu .go-Header-submenuItem a:visited {\n margin: 0;\n padding: 0;\n border-bottom: none;\n font-weight: 400;\n}\n.go-Header-inner--dark .go-Header-menuItem:hover > a:not(.forced-closed).js-desktop-menu-hover,\n.go-Header-inner--dark\n .go-Header-menuItem:focus-within\n > a:not(.forced-closed).js-desktop-menu-hover {\n background: var(--color-background);\n border-color: var(--color-background);\n}\n.go-Header-submenu p {\n max-width: 15.5rem;\n}\n.go-Header-submenu a:link:hover,\n.go-Header-submenu a:visited:hover {\n border-bottom: 2px solid var(--turq-dark);\n text-decoration: none;\n}\n.go-Header-submenu a:link:hover > *,\n.go-Header-submenu a:visited:hover > * {\n text-decoration: none;\n}\n.go-Header-submenu .go-Header-submenuItem {\n padding-bottom: 1.5rem;\n}\n.go-Header-submenu .go-Header-submenuItem p {\n font-size: 0.875rem;\n color: var(--color-text-subtle);\n margin-top: 0.55rem;\n}\n.go-Header-inner--dark .go-Header-submenu .go-Header-submenuItem p {\n color: var(--color-text-subtle);\n}\n\n.go-Header-navOpen {\n background: no-repeat center/2rem url('/images/menu-24px.svg');\n border: none;\n height: 2.5rem;\n margin-left: 1rem;\n width: 2.5rem;\n}\n.go-Header-navOpen--hidden {\n display: none;\n}\n.go-Header-navOpen--white {\n background: no-repeat center/2rem url('/static/shared/icon/menu_gm_grey_24dp.svg');\n filter: brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg)\n brightness(103%) contrast(107%);\n}\n\n.go-SearchForm--expanded {\n flex-grow: 1;\n}\n.go-SearchForm-form {\n display: none;\n}\n.go-SearchForm-form::after {\n right: 2.75rem;\n}\n.go-SearchForm--expanded .go-SearchForm-form {\n display: flex;\n}\n.go-SearchForm-expandSearch {\n appearance: none;\n background: none;\n font-size: 1.5rem;\n}\n.go-SearchForm--expanded .go-SearchForm-expandSearch {\n display: none;\n}\n\n@media only screen and (min-width: 32rem) {\n .go-Header-rightContent {\n width: 100%;\n }\n .go-SearchForm {\n flex: 1;\n }\n .go-SearchForm-form {\n display: flex;\n }\n .go-SearchForm-expandSearch {\n display: none;\n }\n .go-Header-logo--hidden {\n display: initial;\n }\n}\n\n.go-NavigationDrawer {\n background: var(--color-background);\n height: 100%;\n left: auto;\n max-width: 27rem;\n position: fixed;\n right: 0;\n top: 0;\n transform: translateX(100%);\n transition: transform 100ms ease-in-out;\n width: 85%;\n z-index: 30;\n}\n@media only screen and (min-width: 65rem) {\n .go-NavigationDrawer {\n display: none;\n }\n}\n\n.go-NavigationDrawer.is-active {\n transform: translateX(0);\n}\n.go-NavigationDrawer-header {\n border-bottom: 1px solid #eeeeee;\n margin-bottom: 0.5rem;\n}\n.go-NavigationDrawer-submenuItem {\n width: 100%;\n}\n.go-NavigationDrawer-submenuItem .go-NavigationDrawer-header {\n min-height: 4.0625rem;\n font-size: 1.375rem;\n display: flex;\n align-items: center;\n justify-content: flex-start;\n padding: 0.5rem;\n padding-left: 1.5rem;\n color: var(--color-text-link);\n}\n.go-NavigationDrawer-submenuItem .go-NavigationDrawer-header > a {\n display: flex;\n margin-left: 0;\n}\n.go-NavigationDrawer-logo {\n display: block;\n height: 2rem;\n margin: 1rem 1rem;\n width: 5.125rem;\n}\n.go-NavigationDrawer-list {\n list-style: none;\n margin: 0;\n padding: 0;\n}\n.go-NavigationDrawer-listItem {\n font-size: 1.125rem;\n margin: 0 0.5rem;\n color: var(--color-text-subtle);\n}\n.go-NavigationDrawer-listItem--active {\n background-color: var(--blue);\n border-radius: 0.4rem;\n}\n.go-NavigationDrawer-listItem .material-icons {\n color: var(--color-brand-primary);\n margin-right: 0.5rem;\n display: inline-block;\n vertical-align: sub;\n text-decoration: none;\n}\n@media only screen and (max-width: 57.7rem) {\n .go-NavigationDrawer-listItem .go-Header-socialIcons {\n padding: 0.5rem 0;\n }\n\n .go-NavigationDrawer-listItem a.go-Header-socialIcon {\n padding: 0 0.5rem;\n margin: 0;\n display: inline-block;\n }\n\n @media (prefers-color-scheme: dark) {\n :root:not([data-theme='light']) .go-NavigationDrawer-listItem .go-Icon:not(.go-Icon--accented) {\n filter: brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(163deg)\n brightness(80%) contrast(157%);\n }\n }\n}\n.go-NavigationDrawer-scrim {\n display: none;\n height: 100%;\n left: 0;\n position: fixed;\n top: 0;\n width: 100%;\n z-index: 20;\n}\n.go-NavigationDrawer.is-active + .go-NavigationDrawer-scrim {\n background-color: var(--gray-1);\n display: block;\n opacity: 0.32;\n}\n", "/*!\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.depsdev-Icon {\n height: 1.125em;\n vertical-align: text-bottom;\n width: auto;\n}\n\n.go-Icon {\n filter: none;\n height: 1.125em;\n vertical-align: text-bottom;\n width: auto;\n}\n.go-Icon--accented {\n filter: brightness(0) invert(45%) sepia(94%) saturate(6735%) hue-rotate(176deg) brightness(94%)\n contrast(101%);\n}\n.go-Icon--inverted {\n filter: brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg)\n brightness(103%) contrast(107%);\n}\n\n[data-theme='dark'] .go-Icon:not(.go-Icon--accented) {\n filter: brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg)\n brightness(103%) contrast(107%);\n}\n[data-theme='dark'] .go-Icon--accented {\n filter: brightness(0) invert(69%) sepia(46%) saturate(466%) hue-rotate(153deg) brightness(90%)\n contrast(88%);\n}\n@media (prefers-color-scheme: dark) {\n :root:not([data-theme='light']) .go-Icon:not(.go-Icon--accented) {\n filter: brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg)\n brightness(103%) contrast(107%);\n }\n :root:not([data-theme='light']) .go-Icon--accented {\n filter: brightness(0) invert(57%) sepia(63%) saturate(4864%) hue-rotate(160deg) brightness(100%)\n contrast(101%);\n }\n}\n", "/*!\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.go-Message {\n color: var(--color-text);\n font-size: 0.875rem;\n line-height: 1.5rem;\n padding: 0.25rem 0.5rem;\n width: 100%;\n}\n.go-Message--notice {\n background-color: var(--color-background-info);\n}\n.go-Message--warning {\n background-color: var(--color-background-warning);\n color: var(--gray-1);\n}\n.go-Message--alert {\n background-color: var(--color-background-alert);\n}\n\n.go-Message > .go-Icon {\n vertical-align: text-top;\n}\n[data-theme='dark'] .go-Message a:not(:hover) {\n color: var(--color-text);\n text-decoration: underline;\n}\n[data-theme='dark'] .go-Message--warning .go-Icon {\n filter: none;\n}\n@media (prefers-color-scheme: dark) {\n :root:not([data-theme='light']) .go-Message--warning .go-Icon {\n filter: none;\n }\n}\n", "dialog {\n position: absolute;\n left: 0; right: 0;\n width: -moz-fit-content;\n width: -webkit-fit-content;\n width: fit-content;\n height: -moz-fit-content;\n height: -webkit-fit-content;\n height: fit-content;\n margin: auto;\n border: solid;\n padding: 1em;\n background: white;\n color: black;\n display: block;\n}\n\ndialog:not([open]) {\n display: none;\n}\n\ndialog + .backdrop {\n position: fixed;\n top: 0; right: 0; bottom: 0; left: 0;\n background: rgba(0,0,0,0.1);\n}\n\n._dialog_overlay {\n position: fixed;\n top: 0; right: 0; bottom: 0; left: 0;\n}\n\ndialog.fixed {\n position: fixed;\n top: 50%;\n transform: translate(0, -50%);\n}\n", "/*!\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@import url('../../../third_party/dialog-polyfill/dialog-polyfill.css');\n\n.go-Modal {\n background: var(--color-background);\n border: var(--border);\n border-radius: var(--border-radius);\n bottom: 0;\n box-shadow: var(--box-shadow);\n color: var(--color-text);\n display: flex;\n flex-direction: column;\n gap: 1rem;\n max-height: 100%;\n max-width: 100%;\n position: fixed;\n top: 0;\n}\n.go-Modal > form {\n display: contents;\n}\n.go-Modal--small {\n width: 20rem;\n}\n.go-Modal--md {\n width: 30rem;\n}\n.go-Modal--lg {\n width: 40rem;\n}\n.go-Modal-header {\n display: flex;\n justify-content: space-between;\n}\n.go-Modal-header h2 {\n font-size: 1.15rem;\n line-height: 1.25rem;\n}\n.go-Modal-body {\n flex-grow: 1;\n min-height: 2rem;\n min-width: 18rem;\n}\n.go-Modal-actions {\n text-align: right;\n}\n\n/* Safari only */\n@media not all and (min-resolution: 0.001dpcm) {\n @supports (-webkit-appearance: none) {\n .go-Modal {\n padding-bottom: 0;\n }\n }\n}\n", "/*!\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.go-Tree {\n --js-tree-height: 0;\n\n display: flex;\n flex-direction: column;\n}\n\n.go-Tree ul {\n list-style: none;\n padding-left: 0;\n}\n.go-Tree li:last-of-type {\n padding-bottom: 0.25rem;\n}\n.go-Tree a + ul {\n display: none;\n}\n.go-Tree a[aria-expanded='true'] + ul[role='group'] {\n display: block;\n}\n.go-Tree a[aria-level='1'] + ul[role='group'] {\n max-height: calc(\n 100vh - var(--js-tree-height, 0) - var(--js-sticky-header-height, 3.5rem) - 5rem\n );\n overflow-y: auto;\n padding: 0.5rem 0.25rem 0 0.25rem;\n}\n.go-Tree a {\n color: var(--color-text-subtle);\n display: block;\n line-height: 1.5rem;\n overflow: hidden;\n padding: 0.125rem 0 0.125rem 1.25rem;\n position: relative;\n text-overflow: ellipsis;\n user-select: none;\n white-space: nowrap;\n}\n.go-Tree > li > a,\n.go-Tree a[aria-level='1'] {\n display: block;\n font-size: 1rem;\n font-weight: 500;\n line-height: 2.5rem;\n padding: 0 1rem;\n}\n.go-Tree a:focus,\n.go-Tree a:hover {\n text-decoration: underline;\n z-index: 1;\n}\n.go-Tree a[aria-selected='true'] {\n color: var(--color-text);\n font-weight: 500;\n}\n.go-Tree a[aria-level='1'][aria-selected='true'],\n.go-Tree a[aria-level='1'][aria-expanded='true'] {\n background-color: var(--color-background-accented);\n}\n.go-Tree a[aria-level='3'][aria-expanded='true'] {\n margin-bottom: 0.375em;\n}\n.go-Tree a[aria-level='2'] {\n margin-bottom: 0.25rem;\n position: relative;\n}\n.go-Tree a[aria-level='3'] {\n padding-left: 2.5rem;\n}\n.go-Tree a[aria-level='4'] {\n border-left: 0.125rem solid var(--color-background-accented);\n margin-left: 2.5rem;\n padding-left: 0.5rem;\n}\n.go-Tree a[aria-selected='true'][aria-level='2']:not([aria-expanded])::before,\n.go-Tree a[aria-selected='true'][aria-level='3']:not([aria-expanded])::before {\n background-color: var(--color-brand-primary);\n border-radius: 50%;\n content: '';\n display: block;\n height: 0.3125rem;\n left: 0.4688rem;\n position: absolute;\n top: 0.75rem;\n width: 0.3125rem;\n}\n.go-Tree a[aria-expanded][aria-owns][aria-level='2']::before,\n.go-Tree a[aria-expanded][aria-owns][aria-level='3']::before {\n border-bottom: 0.25rem solid transparent;\n border-left: 0.25rem solid var(--color-border);\n border-right: 0;\n border-top: 0.25rem solid transparent;\n content: '';\n display: block;\n height: 0;\n left: 0.5rem;\n position: absolute;\n top: 0.625rem;\n transition: transform 0.1s linear;\n width: 0;\n}\n.go-Tree a[aria-expanded='true'][aria-level='2']::before,\n.go-Tree a[aria-expanded='true'][aria-level='3']::before {\n transform: rotate(90deg);\n}\n.go-Tree a[aria-expanded][aria-level='3']:not([empty])::before,\n.go-Tree a[aria-selected][aria-level='3']:not([empty])::before {\n left: 1.5rem;\n top: 0.75rem;\n}\n.go-Tree a[aria-selected='true'][aria-level='4'] {\n border-left: 0.125rem solid var(--color-brand-primary);\n}\n", "/*!\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.go-TabNav {\n margin: 0 0 0.5rem 0;\n}\n.go-TabNav ul {\n display: flex;\n gap: 2rem;\n}\n.go-TabNav li {\n border-bottom: 0.25rem transparent solid;\n display: flex;\n font-size: 1rem;\n height: 2.375rem;\n padding: 0 0.25rem;\n}\n.go-TabNav li[aria-current] {\n border-color: var(--color-brand-primary);\n}\n.go-TabNav li:hover {\n border-color: var(--color-brand-primary);\n}\n.go-TabNav a {\n align-items: center;\n color: var(--color-text-subtle);\n display: inline-flex;\n}\n.go-TabNav li:hover a {\n text-decoration: none;\n}\n.go-TabNav li[aria-current] a {\n color: var(--color-text);\n}\n", "/*!\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.go-Tooltip {\n border-radius: var(--border-radius);\n cursor: pointer;\n display: inline-block;\n position: relative;\n}\n.go-Tooltip > summary {\n list-style: none;\n}\n.go-Tooltip > summary::-webkit-details-marker,\n.go-Tooltip > summary::marker {\n display: none;\n}\n.go-Tooltip > summary > img {\n vertical-align: text-bottom;\n}\n.go-Tooltip p {\n background: var(--color-background) 80%;\n border: var(--border);\n border-radius: var(--border-radius);\n color: var(--color-text);\n font-size: 0.75rem;\n letter-spacing: 0.01875rem;\n line-height: 1rem;\n padding: 0.5rem;\n position: absolute;\n top: 1.5rem;\n white-space: normal;\n width: 12rem;\n z-index: 100;\n}\n", "/*!\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@import url('./reset.css');\n\n/**\n * Typography should be imported first in the list below to ensure expected\n * CSS rule inheritance on text elements.\n */\n@import url('./typography/typography.css');\n@import url('./button/button.css');\n@import url('./breadcrumb/breadcrumb.css');\n@import url('./carousel/carousel.css');\n@import url('./chip/chip.css');\n@import url('./clipboard/clipboard.css');\n@import url('./color/color.css');\n@import url('./footer/footer.css');\n@import url('./form/form.css');\n@import url('./gopher/gopher.css');\n@import url('./header/header.css');\n@import url('./icon/icon.css');\n@import url('./message/message.css');\n@import url('./modal/modal.css');\n@import url('./outline/tree.css');\n@import url('./tabnav/tabnav.css');\n@import url('./tooltip/tooltip.css');\n\n:root {\n /* Padding at the left and right of the viewport. */\n --gutter: 1.5rem;\n\n /* Margin between containers in the grid layout. */\n --gap: 1rem;\n\n /* The margin placed above elements scrolled to by clicking hash links. */\n --scroll-margin: calc(\n var(--js-sticky-header-height, 3.5rem) + var(--js-sticky-nav-height, 0) + 2rem\n );\n\n /* Default styles for page elements. */\n --border: 0.0625rem solid var(--color-border);\n --border-radius: 0.25rem;\n --box-shadow: 0 0 0.375rem 0 rgb(0 0 0 / 25%);\n --focus-box-shadow: 0 0 0.0625rem 0.0625rem rgb(0 112 210 / 60%);\n}\n\n[data-theme='dark'] {\n --box-shadow: 0 0.3125rem 0.9375rem rgb(0 0 0 / 45%);\n}\n@media (prefers-color-scheme: dark) {\n :root:not([data-theme='light']) {\n --box-shadow: 0 0.3125rem 0.9375rem rgb(0 0 0 / 45%);\n }\n}\n@media (min-width: 50rem) {\n :root {\n --gap: 2rem;\n --scroll-margin: calc(\n var(--js-sticky-header-height, 3.5rem) + var(--js-sticky-nav-height, 0) + 1rem\n );\n }\n}\n\n*:target {\n scroll-margin-top: var(--scroll-margin);\n}\n\nbody {\n background-color: var(--color-background);\n display: flex;\n flex-direction: column;\n min-height: 100vh;\n min-width: 23.5rem;\n\n /**\n * This is used to programatically detect whether overflow needs to be altered\n * to prevent jitter when focusing within fixed elements on iOS.\n * It also must be set to 'touch' for the fix to work.\n */\n -webkit-overflow-scrolling: touch;\n}\n\n.go-Container {\n display: flex;\n flex-direction: column;\n flex-grow: 1;\n height: 100%;\n margin-bottom: 5rem;\n}\n\n.go-Content {\n display: flex;\n flex-flow: column;\n gap: 1rem;\n margin: 0 auto;\n max-width: 63rem;\n min-height: 32rem;\n padding: 2rem var(--gutter);\n width: 100%;\n}\n\n.go-Content--center {\n justify-content: center;\n margin: auto;\n}\n", "/*!\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.JumpDialog-body {\n height: 12rem;\n overflow-y: auto;\n}\n\n.JumpDialog-list {\n display: flex;\n flex-direction: column;\n}\n\n.JumpDialog-input {\n width: 100%;\n}\n\n.JumpDialog a {\n padding: 0.25rem;\n text-decoration: none;\n}\n\n.JumpDialog .JumpDialog-active {\n background-color: var(--color-brand-primary);\n color: var(--white);\n}\n\n.ShortcutsDialog-key {\n text-align: right;\n}\n\n.ShortcutsDialog table {\n padding: 0 1rem;\n}\n\n.ShortcutsDialog td {\n padding-bottom: 0.5rem;\n padding-left: 0.5rem;\n}\n\n.ShortcutsDialog-theme span {\n display: none;\n}\n\n[data-theme='light'] .ShortcutsDialog-themeLight {\n display: initial;\n}\n\n[data-theme='dark'] .ShortcutsDialog-themeDark {\n display: initial;\n}\n\n[data-theme=''] .ShortcutsDialog-themeAuto,\n[data-theme='auto'] .ShortcutsDialog-themeAuto {\n display: initial;\n}\n"],
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+ "sourcesContent": ["/*!\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 * http://meyerweb.com/eric/tools/css/reset/\n * v2.0 | 20110126\n * License: none (public domain)\n */\n\nhtml,\nbody,\nbutton,\ndiv,\nspan,\napplet,\nobject,\niframe,\nh1,\nh2,\nh3,\nh4,\nh5,\nh6,\nhr,\ninput,\np,\nblockquote,\npre,\na,\nabbr,\nacronym,\naddress,\nbig,\ncite,\ncode,\ndel,\ndfn,\ndialog,\nem,\nimg,\nins,\nkbd,\nq,\ns,\nsamp,\nsmall,\nstrike,\nstrong,\nsub,\nsup,\ntt,\nvar,\nb,\nu,\ni,\ncenter,\ndl,\ndt,\ndd,\nol,\nul,\nli,\nfieldset,\nform,\nlabel,\nlegend,\ntable,\ncaption,\ntbody,\ntfoot,\nthead,\ntr,\nth,\ntd,\narticle,\naside,\ncanvas,\ndetails,\nembed,\nfigure,\nfigcaption,\nfooter,\nheader,\nhgroup,\nmenu,\nnav,\noutput,\nruby,\nsection,\nsummary,\ntime,\nmark,\naudio,\nvideo {\n border: 0;\n font: inherit;\n font-size: 100%;\n margin: 0;\n padding: 0;\n vertical-align: baseline;\n}\n\n/* HTML5 display-role reset for older browsers */\narticle,\naside,\ndetails,\nfigcaption,\nfigure,\nfooter,\nheader,\nhgroup,\nmenu,\nnav,\nsection {\n display: block;\n}\n\nbody {\n line-height: 1;\n}\n\nol,\nul {\n list-style: none;\n}\n\nblockquote,\nq {\n quotes: none;\n}\n\nblockquote::before,\nblockquote::after,\nq::before,\nq::after {\n content: '';\n content: none;\n}\n\ntable {\n border-collapse: collapse;\n border-spacing: 0;\n}\n\n*,\n::before,\n::after {\n box-sizing: border-box;\n}\n", "/*!\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\nbody {\n color: var(--color-text);\n font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif,\n 'Apple Color Emoji', 'Segoe UI Emoji';\n font-size: 1rem;\n line-height: normal;\n}\nh1 {\n font-size: 1.5rem;\n}\nh2 {\n font-size: 1.375rem;\n}\nh3 {\n font-size: 1.25rem;\n}\nh4 {\n font-size: 1.125rem;\n}\nh5 {\n font-size: 1rem;\n}\nh6 {\n font-size: 0.875rem;\n}\n\nh1,\nh2,\nh3,\nh4 {\n font-weight: 600;\n line-height: 1.25em;\n word-break: break-word;\n}\nh5,\nh6 {\n font-weight: 500;\n line-height: 1.3em;\n word-break: break-word;\n}\n\nhr {\n border: none;\n border-bottom: var(--border);\n margin: 0;\n width: 100%;\n}\n\np {\n font-size: 1rem;\n line-height: 1.5rem;\n max-width: 60rem;\n}\nstrong {\n font-weight: 600;\n}\n\n.go-textSubtle {\n color: var(--color-text-subtle);\n}\n.go-textTitle {\n font-size: 1.125rem;\n font-weight: 600;\n line-height: 1.25rem;\n}\n.go-textLabel {\n font-size: 0.875rem;\n font-weight: 600;\n line-height: 1rem;\n}\n.go-textPagination {\n font-size: 0.875rem;\n line-height: 1rem;\n}\ncode,\npre,\ntextarea.code {\n font-family: SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace;\n font-size: 0.875rem;\n line-height: 1.5em;\n}\npre,\ntextarea.code {\n background-color: var(--color-background-accented);\n border: var(--border);\n border-radius: var(--border-radius);\n color: var(--color-text);\n overflow-x: auto;\n padding: 0.625rem;\n tab-size: 4;\n white-space: pre;\n}\n\nbutton,\ninput,\nselect,\ntextarea {\n font: inherit;\n}\n\na,\na:link,\na:visited {\n color: var(--color-brand-primary);\n text-decoration: none;\n}\na:hover {\n color: var(--color-brand-primary);\n text-decoration: underline;\n}\na:hover > * {\n text-decoration: underline;\n}\n", "/*!\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\nbutton:focus:not([disabled]) {\n border-color: var(--color-brand-primary);\n -webkit-box-shadow: var(--focus-box-shadow);\n box-shadow: var(--focus-box-shadow);\n outline: transparent;\n}\n\n.go-Button {\n align-items: center;\n background-color: var(--color-button);\n border: 0.0625rem solid transparent;\n border-radius: var(--border-radius);\n color: var(--color-button-text);\n cursor: pointer;\n display: inline-flex;\n font-weight: 500;\n gap: 0.25rem;\n}\n.go-Button:not(.go-Button--inline) {\n padding: 0.5rem;\n}\n\n.go-Button--accented {\n background-color: var(--color-button-accented);\n color: var(--color-button-accented-text);\n}\n.go-Button--inverted,\n.go-Button--text,\n.go-Button--inline {\n background-color: var(--color-button-inverted);\n color: var(--color-button-inverted-text);\n}\n.go-Button--inline {\n background-color: transparent;\n}\n\n.go-Button--inverted {\n border: var(--border);\n}\n\n.go-Button:hover {\n box-shadow: var(--focus-box-shadow);\n filter: contrast(0.95);\n}\n.go-Button--inline:hover {\n box-shadow: none;\n text-decoration: underline var(--color-button-inverted-text);\n}\n.go-Button:focus {\n filter: contrast(0.95);\n}\n.go-Button--inverted:focus {\n border-color: var(--color-button-inverted-text);\n}\n.go-Button:active {\n box-shadow: none;\n filter: contrast(0.85);\n}\n\n.go-Button:disabled {\n background-color: var(--color-button-disabled);\n box-shadow: none;\n color: var(--color-button-text-disabled);\n cursor: initial;\n filter: none;\n text-decoration: none;\n}\n.go-Button--accented:disabled {\n background-color: var(--color-button-accented-disabled);\n color: var(--color-button-accented-text-disabled);\n}\n.go-Button--inverted:disabled,\n.go-Button--text:disabled,\n.go-Button--inline:disabled {\n background-color: var(--color-button-inverted-disabled);\n color: var(--color-button-inverted-text-disabled);\n}\n.go-Button--inline:disabled {\n background-color: transparent;\n}\n", "/*!\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.go-Breadcrumb ol {\n line-height: 1.5rem;\n white-space: initial;\n}\n.go-Breadcrumb li {\n align-items: center;\n color: var(--color-text-subtle);\n display: inline-flex;\n font-size: 0.875rem;\n}\n.go-Breadcrumb li:not(:last-child)::after {\n content: '>';\n padding: 0 0.5rem;\n}\n.go-Breadcrumb li:last-child > a {\n color: var(--color-text-subtle);\n}\n.go-Breadcrumb li > .go-Clipboard {\n margin: 0 0.5rem;\n}\n", "/*!\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.go-Carousel {\n align-items: center;\n display: flex;\n flex-direction: column;\n position: relative;\n text-align: center;\n}\n.go-Carousel-slide {\n margin: 0.5rem 3rem;\n}\n.go-Carousel-slide[aria-hidden] {\n display: none;\n}\n.go-Carousel-prevSlide {\n left: 0;\n}\n.go-Carousel-nextSlide {\n right: 0;\n}\n.go-Carousel-prevSlide,\n.go-Carousel-nextSlide {\n background-color: transparent;\n border-radius: var(--border-radius);\n font-size: 1.5rem;\n height: 2.75rem;\n margin-top: -1.375rem;\n opacity: 0;\n position: absolute;\n top: 50%;\n width: 2.75rem;\n}\n.go-Carousel-prevSlide:hover,\n.go-Carousel-nextSlide:hover {\n background-color: var(--color-background-accented);\n cursor: pointer;\n}\n.go-Carousel:hover .go-Carousel-prevSlide,\n.go-Carousel:hover .go-Carousel-nextSlide,\n.go-Carousel:focus-within .go-Carousel-prevSlide,\n.go-Carousel:focus-within .go-Carousel-nextSlide {\n opacity: 1;\n}\n.go-Carousel-dots {\n display: flex;\n font-size: 0.4375rem;\n gap: 0.5rem;\n}\n.go-Carousel-dot {\n background-color: var(--color-border);\n border-radius: 2rem;\n height: 0.4375rem;\n width: 0.4375rem;\n}\n.go-Carousel-dot--active,\n.go-Carousel-dot:hover {\n background-color: var(--color-text-subtle);\n}\n.go-Carousel-obscured {\n border: 0;\n clip: rect(0 0 0 0);\n height: 0.0625rem;\n margin: -0.0625rem;\n overflow: hidden;\n padding: 0;\n position: absolute;\n width: 0.0625rem;\n}\n", "/*!\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.go-Chip {\n background: var(--color-button);\n border: 0.0625rem solid var(--color-button);\n border-radius: 1.25rem;\n color: var(--color-button-text);\n font-size: 0.75rem;\n padding: 0.125rem 0.625rem;\n}\n.go-Chip--accented {\n background: var(--color-button-accented);\n border: 0.0625rem solid var(--color-button-accented);\n color: var(--color-button-accented-text);\n}\n.go-Chip--inverted {\n background: var(--color-button-inverted);\n border: var(--border);\n color: var(--color-text);\n}\n.go-Chip--highlighted {\n background: var(--color-background-highlighted-link);\n border-color: var(--color-background-highlighted-link);\n color: var(--color-brand-primary);\n}\n.go-Chip--alert {\n background: var(--pink);\n border: 0.0625rem solid var(--pink);\n color: var(--color-text-inverted);\n}\n.go-Chip--vuln {\n background: var(--pink-light);\n border: 0.0625rem solid var(--pink-light);\n color: var(--color-text-inverted);\n}\n.go-Chip--subtle {\n background-color: var(--color-background-accented);\n border-color: transparent;\n color: var(--color-text-subtle);\n}\n", "/*!\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.go-Clipboard {\n position: relative;\n}\n.go-Clipboard::before {\n background-color: var(--color-background-inverted);\n border-radius: var(--border-radius);\n color: var(--color-text-inverted);\n content: attr(data-tooltip);\n display: block;\n font-size: 0.9em;\n left: calc(100% + 0.125rem);\n padding: 0.25rem 0.3rem;\n position: absolute;\n text-transform: uppercase;\n top: 0.125rem;\n white-space: nowrap;\n z-index: 1000;\n}\n.go-Clipboard::after {\n border-bottom: 0.25rem solid transparent;\n border-left: 0;\n border-right: 0.25rem solid var(--color-background-inverted);\n border-top: 0.25rem solid transparent;\n content: '';\n display: block;\n position: absolute;\n right: -0.125rem;\n top: 0.5625rem;\n z-index: 1000;\n}\n.go-Clipboard:not([data-tooltip])::before,\n.go-Clipboard:not([data-tooltip])::after,\n.go-Clipboard[data-tooltip='']::before,\n.go-Clipboard[data-tooltip='']::after {\n display: none;\n}\n", "/*!\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:root {\n /* Colors */\n --gray-1: #202224;\n --gray-2: #3e4042;\n --gray-3: #555759;\n --gray-4: #6e7072;\n --gray-5: #848688;\n --gray-6: #aaacae;\n --gray-7: #c6c8ca;\n --gray-8: #dcdee0;\n --gray-9: #f0f1f2;\n --gray-10: #f8f8f8;\n --turq-light: #5dc9e2;\n --turq-med: #50b7e0;\n --turq-dark: #007d9c;\n --blue: #bfeaf4;\n --blue-light: #f2fafd;\n --black: #000;\n --green: #3a6e11;\n --green-light: #5fda64;\n --pink: #c85e7a;\n --pink-light: #fdecf1;\n --purple: #542c7d;\n --slate: #253443; /* Footer background. */\n --white: #fff;\n --yellow: #fceea5;\n --yellow-light: #fff8cc;\n\n /* Color Intents */\n --color-brand-primary: var(--turq-dark);\n --color-background: var(--white);\n --color-background-inverted: var(--slate);\n --color-background-accented: var(--gray-10);\n --color-background-highlighted: var(--blue);\n --color-background-highlighted-link: var(--blue-light);\n --color-background-info: var(--gray-9);\n --color-background-warning: var(--yellow-light);\n --color-background-alert: var(--pink-light);\n --color-border: var(--gray-7);\n --color-text: var(--gray-1);\n --color-text-subtle: var(--gray-4);\n --color-text-link: var(--turq-dark);\n --color-text-inverted: var(--white);\n --color-code-comment: var(--green);\n\n /* Interactive Colors */\n --color-input: var(--color-background);\n --color-input-text: var(--color-text);\n --color-button: var(--turq-dark);\n --color-button-disabled: var(--gray-9);\n --color-button-text: var(--white);\n --color-button-text-disabled: var(--gray-3);\n --color-button-inverted: var(--color-background);\n --color-button-inverted-disabled: var(--color-background);\n --color-button-inverted-text: var(--color-brand-primary);\n --color-button-inverted-text-disabled: var(--color-text-subtle);\n --color-button-accented: var(--yellow);\n --color-button-accented-disabled: var(--gray-9);\n --color-button-accented-text: var(--gray-1);\n --color-button-accented-text-disabled: var(--gray-3);\n}\n\n[data-theme='dark'] {\n --color-brand-primary: var(--turq-med);\n --color-background: var(--gray-1);\n --color-background-accented: var(--gray-2);\n --color-background-highlighted: var(--gray-2);\n --color-background-highlighted-link: var(--gray-2);\n --color-background-info: var(--gray-3);\n --color-background-warning: var(--yellow);\n --color-background-alert: var(--pink);\n --color-border: var(--gray-4);\n --color-text: var(--gray-9);\n --color-text-link: var(--turq-med);\n --color-text-subtle: var(--gray-7);\n --color-code-comment: var(--green-light);\n}\n@media (prefers-color-scheme: dark) {\n :root:not([data-theme='light']) {\n --color-brand-primary: var(--turq-med);\n --color-background: var(--gray-1);\n --color-background-accented: var(--gray-2);\n --color-background-highlighted: var(--gray-2);\n --color-background-highlighted-link: var(--gray-2);\n --color-background-info: var(--gray-3);\n --color-background-warning: var(--yellow);\n --color-background-alert: var(--pink);\n --color-border: var(--gray-4);\n --color-text: var(--gray-9);\n --color-text-link: var(--turq-med);\n --color-text-subtle: var(--gray-7);\n --color-code-comment: var(--green-light);\n }\n}\n", "/*!\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.go-Footer {\n background-color: var(--color-background-inverted);\n color: var(--color-text-inverted);\n font-size: 0.875rem;\n width: 100%;\n}\n.go-Footer-links {\n display: flex;\n flex-wrap: wrap;\n justify-content: space-between;\n margin: auto;\n max-width: 75.75rem;\n padding: 2rem 1.5rem 2.625rem 1.5rem;\n}\n.go-Footer-linkColumn {\n flex: 0 0 9.5rem;\n}\n.go-Footer .go-Footer-link {\n color: var(--color-text-inverted);\n display: flex;\n flex: 1;\n font-size: 0.875rem;\n line-height: 2rem;\n}\n.go-Footer .go-Footer-link--primary {\n font-size: 1.125rem;\n line-height: 1.75rem;\n margin-bottom: 0.5rem;\n margin-top: 0.75rem;\n}\n.go-Footer-bottom {\n align-items: center;\n border-top: var(--border);\n display: flex;\n margin: 0 1.5rem;\n min-height: 4.125rem;\n}\n.go-Footer-gopher {\n align-self: flex-end;\n height: 3.147rem;\n width: 5rem;\n}\n.go-Footer-listRow {\n display: flex;\n flex: 1;\n flex-wrap: wrap;\n list-style: none;\n margin: 0;\n padding: 0;\n text-align: center;\n}\n.go-Footer-listItem {\n align-items: center;\n display: flex;\n flex: 1 100%;\n justify-content: center;\n margin: 0.4rem 0;\n padding: 0 1rem;\n}\n.go-Footer-listItem a:link,\n.go-Footer-listItem a:visited {\n color: var(--color-text-inverted);\n}\n.go-Footer-listItem .go-Button--text {\n background-color: transparent;\n font-size: 1rem;\n margin: -0.5rem 0;\n}\n.go-Footer-listItem [data-value] {\n display: none;\n}\n\n[data-theme='auto'] .go-Footer-listItem [data-value='auto'],\n:root:not([data-theme]) .go-Footer-listItem [data-value='auto'] {\n display: initial;\n}\n[data-theme='dark'] .go-Footer-listItem [data-value='dark'] {\n display: initial;\n}\n[data-theme='light'] .go-Footer-listItem [data-value='light'] {\n display: initial;\n}\n.go-Footer-toggleTheme,\n.go-Footer-keyboard {\n margin: 0 0 0.5rem 0;\n}\n\n.go-Footer-googleLogo {\n align-self: flex-end;\n height: 1.5rem;\n margin-bottom: 1.3rem;\n text-align: right;\n}\n.go-Footer-googleLogoImg {\n height: 1.5rem;\n width: 4.529rem;\n}\n\n@media only screen and (min-width: 52rem) {\n .go-Footer-listItem {\n flex: initial;\n }\n .go-Footer-listItem + .go-Footer-listItem {\n border-left: var(--border);\n }\n .go-Footer-toggleTheme {\n margin: 0 0 0 -0.5rem;\n }\n .go-Footer-keyboard {\n margin: 0;\n }\n}\n", "/*!\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\nselect:focus:not([disabled]),\ninput:focus:not([disabled]) {\n border-color: var(--color-brand-primary);\n -webkit-box-shadow: var(--focus-box-shadow);\n box-shadow: var(--focus-box-shadow);\n outline: transparent;\n z-index: 2;\n}\n\ninput::placeholder {\n color: var(--color-text-subtle);\n}\n\n.go-Form {\n align-items: start;\n display: flex;\n flex-direction: column;\n gap: 1rem;\n}\n\n.go-Label {\n display: flex;\n flex-direction: column;\n gap: 0.5rem;\n}\n.go-Label--inline {\n align-items: center;\n flex-direction: row;\n}\n.go-Label legend {\n margin-bottom: 0.5rem;\n}\n.go-Label--inline legend {\n float: left;\n margin-bottom: 0;\n}\n.go-Input,\n.go-Select {\n background: var(--color-input);\n border: var(--border);\n border-radius: var(--border-radius);\n color: var(--color-input-text);\n}\n.go-Input {\n padding: 0.40625rem 0.5rem;\n}\n.go-Select {\n -webkit-appearance: none;\n -moz-appearance: none;\n appearance: none;\n background: url('/static/shared/icon/arrow_drop_down_gm_grey_24dp.svg') right no-repeat;\n background-color: var(--color-background);\n background-position: right center;\n border-radius: var(--border-radius);\n margin: 0;\n padding: 0.34375rem 1.25rem 0.34375rem 0.5rem;\n}\n\n.go-InputGroup {\n display: flex;\n}\n.go-InputGroup .go-Input {\n flex: 1;\n}\n.go-InputGroup > :not(:first-child, :last-child) {\n border-radius: 0;\n margin-left: -0.0625rem;\n}\n.go-InputGroup > :first-child {\n border-bottom-right-radius: 0;\n border-top-right-radius: 0;\n}\n.go-InputGroup > :last-child {\n border-bottom-left-radius: 0;\n border-top-left-radius: 0;\n margin-left: -0.0625rem;\n}\n.go-InputGroup > *:hover,\n.go-InputGroup > *:focus {\n z-index: 1;\n}\n\n.go-ShortcutKey {\n display: flex;\n position: relative;\n}\n.go-ShortcutKey .go-Input {\n flex-grow: 1;\n}\n.go-ShortcutKey::after {\n align-self: center;\n background-color: var(--color-background-accented);\n border-radius: 0.5rem;\n color: var(--gray-6);\n content: attr(data-shortcut);\n content: attr(data-shortcut) / attr(data-shortcut-alt);\n display: none;\n font-size: 0.75rem;\n padding: 0.0625rem 0;\n position: absolute;\n right: 0.75rem;\n text-align: center;\n width: 1.5rem;\n z-index: 1;\n}\n@media only screen and (min-width: 52rem) {\n .go-ShortcutKey::after {\n display: 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.go-GopherMessage img {\n display: block;\n height: 15rem;\n margin: 0 auto;\n padding: 1.25rem 0;\n width: 15rem;\n}\n.go-GopherMessage p {\n font-weight: 600;\n margin: auto;\n text-align: center;\n}\n", "/*!\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.go-Banner {\n background-color: var(--gray-1);\n\n /**\n * Only show on wide viewports so the\n * text never wraps or gets cut off.\n */\n display: none;\n}\n.go-Banner-inner {\n align-items: center;\n display: flex;\n justify-content: space-between;\n margin: 0 auto;\n min-height: 2.5rem;\n padding: 0.5rem var(--gutter);\n}\n.Site--wide .go-Banner-inner {\n max-width: 98rem;\n}\n.go-Banner--full .go-Banner-inner {\n max-width: unset;\n}\n.go-Banner-message {\n color: var(--white);\n margin-right: 1.25rem;\n}\n.go-Banner-action:link,\n.go-Banner-action:visited {\n color: var(--white);\n text-decoration: underline;\n white-space: nowrap;\n}\n@media only screen and (min-width: 52rem) {\n .go-Banner {\n display: block;\n }\n}\n\n.go-Header {\n background: #007d9c;\n border-bottom: none;\n box-shadow: 0 0.0625rem 0.125rem rgba(171, 171, 171, 0.3);\n top: 0;\n width: 100%;\n z-index: 10;\n}\n.go-Header-inner {\n margin: 0 auto;\n padding: 0 var(--gutter);\n}\n.Site--wide .go-Header-inner {\n max-width: 98rem;\n}\n.go-Header--full .go-Header-inner {\n max-width: initial;\n}\n.go-Header-nav {\n align-items: center;\n display: flex;\n height: 3.5rem;\n justify-content: space-between;\n}\n.go-Header-rightContent {\n align-items: center;\n display: flex;\n height: 100%;\n justify-content: flex-end;\n width: 100%;\n}\n.go-Header-rightContent form {\n flex-grow: 1;\n}\n.go-Header-inner--dark {\n border-bottom: none;\n color: var(--white);\n}\n\n.go-Header-logo {\n display: block;\n height: 2rem;\n margin-right: 2.25rem;\n width: 5.125rem;\n}\n.go-Header-logo--hidden {\n display: none;\n}\n.go-Header-menuItem {\n display: none;\n position: relative;\n}\n.go-Header-menu {\n align-items: stretch;\n display: flex;\n height: 100%;\n list-style: none;\n margin: 0;\n padding: 0;\n}\n\n.go-Header-submenu {\n padding: 1.5rem 1.5rem 0;\n list-style-type: none;\n background: transparent;\n visibility: hidden;\n opacity: 0;\n display: none;\n transition: all 0.2s ease;\n margin-top: 3.5rem;\n position: absolute;\n flex-direction: column;\n flex-wrap: wrap;\n color: var(--color-text);\n background-color: var(--color-background);\n border: 0.0625rem solid #007d9d;\n border-width: 0 0.0625rem 0.0625rem;\n}\n\n.go-Header-menuItem:hover > .js-desktop-menu-hover:not(.forced-closed) ~ .go-Header-submenu,\n.go-Header-menuItem:focus-within > .js-desktop-menu-hover:not(.forced-closed) ~ .go-Header-submenu {\n visibility: visible;\n opacity: 1;\n display: flex;\n}\n.go-Header-menuItem .go-Header-submenuItem a:link,\n.go-Header-menuItem .go-Header-submenuItem a:visited {\n margin: 0;\n margin-bottom: -0.125rem;\n padding: 0;\n border-bottom: none;\n font-weight: 400;\n color: var(--color-text-link);\n display: inline-flex;\n align-items: baseline;\n}\n.go-Header-menuItem .go-Icon {\n font-size: 1.25rem;\n filter: brightness(0%) saturate(100%) invert(100%);\n}\n.go-Header-menuItem .go-Header-submenuItem .go-Icon,\n.go-NavigationDrawer-listItem .go-Icon {\n filter: brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(162deg)\n brightness(71%) contrast(177%);\n}\n\n.go-Header-submenu .go-Header-submenuItem i {\n margin-left: 0.25rem;\n transform: translateY(0.1rem); /* to get bottom alignment w/ text */\n font-size: 0.75rem;\n}\n\n.go-Header-menu .go-Header-submenu--why {\n width: 18.5rem;\n left: -1px;\n}\n.go-Header-menu .go-Header-submenu--docs {\n left: -12rem;\n height: 20.78rem;\n width: 37.25rem;\n}\n.go-Header-menu .go-Header-submenu--community {\n right: -1px;\n height: 18.4rem;\n width: 37.25rem;\n}\n.go-Header-socialIcons {\n display: flex;\n flex-wrap: wrap;\n}\n.go-Header-submenu .go-Header-submenuItem a.go-Header-socialIcon {\n flex: 0 1 auto;\n display: inline-flex;\n width: auto;\n}\n.go-Header-submenu .go-Header-submenuItem a.go-Header-socialIcon:not(:last-child) {\n margin-right: 0.75rem;\n}\n@media only screen and (min-width: 65rem) {\n .go-Header-menuItem {\n align-items: stretch;\n display: inline-flex;\n flex: none;\n }\n .go-Header-menu {\n justify-content: flex-end;\n }\n .go-Header-navOpen {\n display: none;\n }\n}\n\n.go-Header-menuItem .js-desktop-menu-hover img {\n pointer-events: none;\n}\n.go-Header-menuItem a:link,\n.go-Header-menuItem a:visited {\n align-items: center;\n border-bottom: 0.1875rem solid transparent;\n border-top: 0.1875rem solid transparent; /* To ensure the text remains centered. */\n color: var(--color-text);\n display: inline-flex;\n padding: 0 1.5rem;\n text-align: center;\n text-decoration: none;\n width: 100%;\n}\n.go-Header-menuItem--active a:link,\n.go-Header-menuItem--active a:visited {\n border-bottom-color: var(--turq-med);\n font-weight: bold;\n}\n.go-Header-menuItem a:hover {\n border-bottom-color: var(--white);\n}\n.go-Header-menuItem:hover > a:not(.forced-closed).js-desktop-menu-hover,\n.go-Header-menuItem:focus-within > a:not(.forced-closed).js-desktop-menu-hover {\n background: var(--white);\n color: var(--color-text-link);\n border-color: var(--white);\n}\n\n/* Need to get around icon.css color management */\n@media (prefers-color-scheme: dark) {\n :root:not([data-theme='light'])\n .go-Header-menuItem:hover\n > a:not(.forced-closed).js-desktop-menu-hover\n .go-Icon,\n :root:not([data-theme='light'])\n .go-Header-menuItem:focus-within\n > a:not(.forced-closed).js-desktop-menu-hover\n .go-Icon {\n filter: brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(158deg)\n brightness(83%) contrast(157%);\n }\n :root:not([data-theme='light']) .go-Header-submenuItem .go-Icon:not(.go-Icon--accented) {\n filter: brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(163deg)\n brightness(80%) contrast(157%);\n }\n}\n.go-NavigationDrawer-listItem > div:not(.go-NavigationDrawer),\n.go-NavigationDrawer-listItem a:link,\n.go-NavigationDrawer-listItem a:visited {\n margin: 0 1rem;\n padding: 0.5rem;\n display: block;\n}\n\n.go-NavigationDrawer-listItem > span {\n color: var(--gray-2);\n}\n.go-Header-inner--dark .go-Header-menuItem a:link,\n.go-Header-inner--dark .go-Header-menuItem a:visited {\n color: var(--white);\n}\n.go-NavigationDrawer-listItem.go-NavigationDrawer-hasSubnav > a i {\n float: right;\n}\n.go-Header-inner--dark .go-Header-menuItem .go-Header-submenuItem {\n color: var(--color-text-link);\n}\n.go-Header-inner--dark .go-Header-menuItem .js-desktop-menu-hover.is-expanded {\n color: var(--color-text-link);\n background-color: var(--white);\n}\n.go-Header-inner--dark .go-Header-menuItem .go-Header-submenu a:link,\n.go-Header-inner--dark .go-Header-menuItem .go-Header-submenu a:visited {\n color: var(--color-text-link);\n display: inline-flex;\n align-items: baseline;\n margin-bottom: -2px;\n width: auto;\n}\n.go-Header-submenu .go-Header-submenuItem a:link,\n.go-Header-submenu .go-Header-submenuItem a:visited {\n margin: 0;\n padding: 0;\n border-bottom: none;\n font-weight: 400;\n}\n.go-Header-inner--dark .go-Header-menuItem:hover > a:not(.forced-closed).js-desktop-menu-hover,\n.go-Header-inner--dark\n .go-Header-menuItem:focus-within\n > a:not(.forced-closed).js-desktop-menu-hover {\n background: var(--color-background);\n border-color: var(--color-background);\n}\n.go-Header-submenu p {\n max-width: 15.5rem;\n}\n.go-Header-submenu a:link:hover,\n.go-Header-submenu a:visited:hover {\n border-bottom: 2px solid var(--turq-dark);\n text-decoration: none;\n}\n.go-Header-submenu a:link:hover > *,\n.go-Header-submenu a:visited:hover > * {\n text-decoration: none;\n}\n.go-Header-submenu .go-Header-submenuItem {\n line-height: 1;\n padding-bottom: 1.5rem;\n}\n.go-Header-submenu .go-Header-submenuItem p {\n font-size: 0.875rem;\n color: var(--color-text-subtle);\n margin-top: 0.55rem;\n}\n.go-Header-inner--dark .go-Header-submenu .go-Header-submenuItem p {\n color: var(--color-text-subtle);\n}\n\n.go-Header-navOpen {\n background: no-repeat center/2rem url('/images/menu-24px.svg');\n border: none;\n height: 2.5rem;\n margin-left: 1rem;\n width: 2.5rem;\n}\n.go-Header-navOpen--hidden {\n display: none;\n}\n.go-Header-navOpen--white {\n background: no-repeat center/2rem url('/static/shared/icon/menu_gm_grey_24dp.svg');\n filter: brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg)\n brightness(103%) contrast(107%);\n}\n\n.go-SearchForm--expanded {\n flex-grow: 1;\n}\n.go-SearchForm-form {\n display: none;\n}\n.go-SearchForm-form::after {\n right: 2.75rem;\n}\n.go-SearchForm--expanded .go-SearchForm-form {\n display: flex;\n}\n.go-SearchForm-expandSearch {\n appearance: none;\n background: none;\n font-size: 1.5rem;\n}\n.go-SearchForm--expanded .go-SearchForm-expandSearch {\n display: none;\n}\n\n@media only screen and (min-width: 32rem) {\n .go-Header-rightContent {\n width: 100%;\n }\n .go-SearchForm {\n flex: 1;\n }\n .go-SearchForm-form {\n display: flex;\n }\n .go-SearchForm-expandSearch {\n display: none;\n }\n .go-Header-logo--hidden {\n display: initial;\n }\n}\n\n.go-NavigationDrawer {\n background: var(--color-background);\n height: 100%;\n left: auto;\n max-width: 27rem;\n position: fixed;\n right: 0;\n top: 0;\n transform: translateX(100%);\n transition: transform 100ms ease-in-out;\n width: 85%;\n z-index: 30;\n}\n@media only screen and (min-width: 65rem) {\n .go-NavigationDrawer {\n display: none;\n }\n}\n\n.go-NavigationDrawer.is-active {\n transform: translateX(0);\n}\n.go-NavigationDrawer-header {\n border-bottom: 1px solid #eeeeee;\n margin-bottom: 0.5rem;\n}\n.go-NavigationDrawer-submenuItem {\n width: 100%;\n}\n.go-NavigationDrawer-submenuItem .go-NavigationDrawer-header {\n min-height: 4.0625rem;\n font-size: 1.375rem;\n display: flex;\n align-items: center;\n justify-content: flex-start;\n padding: 0.5rem;\n padding-left: 1.5rem;\n color: var(--color-text-link);\n}\n.go-NavigationDrawer-submenuItem .go-NavigationDrawer-header > a {\n display: flex;\n margin-left: 0;\n}\n.go-NavigationDrawer-logo {\n display: block;\n height: 2rem;\n margin: 1rem 1rem;\n width: 5.125rem;\n}\n.go-NavigationDrawer-list {\n list-style: none;\n margin: 0;\n padding: 0;\n}\n.go-NavigationDrawer-listItem {\n font-size: 1.125rem;\n margin: 0 0.5rem;\n color: var(--color-text-subtle);\n}\n.go-NavigationDrawer-listItem--active {\n background-color: var(--blue);\n border-radius: 0.4rem;\n}\n.go-NavigationDrawer-listItem .material-icons {\n color: var(--color-brand-primary);\n margin-right: 0.5rem;\n display: inline-block;\n vertical-align: sub;\n text-decoration: none;\n}\n@media only screen and (max-width: 57.7rem) {\n .go-NavigationDrawer-listItem .go-Header-socialIcons {\n padding: 0.5rem 0;\n }\n\n .go-NavigationDrawer-listItem a.go-Header-socialIcon {\n padding: 0 0.5rem;\n margin: 0;\n display: inline-block;\n }\n\n @media (prefers-color-scheme: dark) {\n :root:not([data-theme='light']) .go-NavigationDrawer-listItem .go-Icon:not(.go-Icon--accented) {\n filter: brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(163deg)\n brightness(80%) contrast(157%);\n }\n }\n}\n.go-NavigationDrawer-scrim {\n display: none;\n height: 100%;\n left: 0;\n position: fixed;\n top: 0;\n width: 100%;\n z-index: 20;\n}\n.go-NavigationDrawer.is-active + .go-NavigationDrawer-scrim {\n background-color: var(--gray-1);\n display: block;\n opacity: 0.32;\n}\n", "/*!\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.depsdev-Icon {\n height: 1.125em;\n vertical-align: text-bottom;\n width: auto;\n}\n\n.go-Icon {\n filter: none;\n height: 1.125em;\n vertical-align: text-bottom;\n width: auto;\n}\n.go-Icon--accented {\n filter: brightness(0) invert(45%) sepia(94%) saturate(6735%) hue-rotate(176deg) brightness(94%)\n contrast(101%);\n}\n.go-Icon--inverted {\n filter: brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg)\n brightness(103%) contrast(107%);\n}\n\n[data-theme='dark'] .go-Icon:not(.go-Icon--accented) {\n filter: brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg)\n brightness(103%) contrast(107%);\n}\n[data-theme='dark'] .go-Icon--accented {\n filter: brightness(0) invert(69%) sepia(46%) saturate(466%) hue-rotate(153deg) brightness(90%)\n contrast(88%);\n}\n@media (prefers-color-scheme: dark) {\n :root:not([data-theme='light']) .go-Icon:not(.go-Icon--accented) {\n filter: brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg)\n brightness(103%) contrast(107%);\n }\n :root:not([data-theme='light']) .go-Icon--accented {\n filter: brightness(0) invert(57%) sepia(63%) saturate(4864%) hue-rotate(160deg) brightness(100%)\n contrast(101%);\n }\n}\n", "/*!\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.go-Message {\n color: var(--color-text);\n font-size: 0.875rem;\n line-height: 1.5rem;\n padding: 0.25rem 0.5rem;\n width: 100%;\n}\n.go-Message--notice {\n background-color: var(--color-background-info);\n}\n.go-Message--warning {\n background-color: var(--color-background-warning);\n color: var(--gray-1);\n}\n.go-Message--alert {\n background-color: var(--color-background-alert);\n}\n\n.go-Message > .go-Icon {\n vertical-align: text-top;\n}\n[data-theme='dark'] .go-Message a:not(:hover) {\n color: var(--color-text);\n text-decoration: underline;\n}\n[data-theme='dark'] .go-Message--warning .go-Icon {\n filter: none;\n}\n@media (prefers-color-scheme: dark) {\n :root:not([data-theme='light']) .go-Message--warning .go-Icon {\n filter: none;\n }\n}\n", "dialog {\n position: absolute;\n left: 0; right: 0;\n width: -moz-fit-content;\n width: -webkit-fit-content;\n width: fit-content;\n height: -moz-fit-content;\n height: -webkit-fit-content;\n height: fit-content;\n margin: auto;\n border: solid;\n padding: 1em;\n background: white;\n color: black;\n display: block;\n}\n\ndialog:not([open]) {\n display: none;\n}\n\ndialog + .backdrop {\n position: fixed;\n top: 0; right: 0; bottom: 0; left: 0;\n background: rgba(0,0,0,0.1);\n}\n\n._dialog_overlay {\n position: fixed;\n top: 0; right: 0; bottom: 0; left: 0;\n}\n\ndialog.fixed {\n position: fixed;\n top: 50%;\n transform: translate(0, -50%);\n}\n", "/*!\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@import url('../../../third_party/dialog-polyfill/dialog-polyfill.css');\n\n.go-Modal {\n background: var(--color-background);\n border: var(--border);\n border-radius: var(--border-radius);\n bottom: 0;\n box-shadow: var(--box-shadow);\n color: var(--color-text);\n display: flex;\n flex-direction: column;\n gap: 1rem;\n max-height: 100%;\n max-width: 100%;\n position: fixed;\n top: 0;\n}\n.go-Modal > form {\n display: contents;\n}\n.go-Modal--small {\n width: 20rem;\n}\n.go-Modal--md {\n width: 30rem;\n}\n.go-Modal--lg {\n width: 40rem;\n}\n.go-Modal-header {\n display: flex;\n justify-content: space-between;\n}\n.go-Modal-header h2 {\n font-size: 1.15rem;\n line-height: 1.25rem;\n}\n.go-Modal-body {\n flex-grow: 1;\n min-height: 2rem;\n min-width: 18rem;\n}\n.go-Modal-actions {\n text-align: right;\n}\n\n/* Safari only */\n@media not all and (min-resolution: 0.001dpcm) {\n @supports (-webkit-appearance: none) {\n .go-Modal {\n padding-bottom: 0;\n }\n }\n}\n", "/*!\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.go-Tree {\n --js-tree-height: 0;\n\n display: flex;\n flex-direction: column;\n}\n\n.go-Tree ul {\n list-style: none;\n padding-left: 0;\n}\n.go-Tree li:last-of-type {\n padding-bottom: 0.25rem;\n}\n.go-Tree a + ul {\n display: none;\n}\n.go-Tree a[aria-expanded='true'] + ul[role='group'] {\n display: block;\n}\n.go-Tree a[aria-level='1'] + ul[role='group'] {\n max-height: calc(\n 100vh - var(--js-tree-height, 0) - var(--js-sticky-header-height, 3.5rem) - 5rem\n );\n overflow-y: auto;\n padding: 0.5rem 0.25rem 0 0.25rem;\n}\n.go-Tree a {\n color: var(--color-text-subtle);\n display: block;\n line-height: 1.5rem;\n overflow: hidden;\n padding: 0.125rem 0 0.125rem 1.25rem;\n position: relative;\n text-overflow: ellipsis;\n user-select: none;\n white-space: nowrap;\n}\n.go-Tree > li > a,\n.go-Tree a[aria-level='1'] {\n display: block;\n font-size: 1rem;\n font-weight: 500;\n line-height: 2.5rem;\n padding: 0 1rem;\n}\n.go-Tree a:focus,\n.go-Tree a:hover {\n text-decoration: underline;\n z-index: 1;\n}\n.go-Tree a[aria-selected='true'] {\n color: var(--color-text);\n font-weight: 500;\n}\n.go-Tree a[aria-level='1'][aria-selected='true'],\n.go-Tree a[aria-level='1'][aria-expanded='true'] {\n background-color: var(--color-background-accented);\n}\n.go-Tree a[aria-level='3'][aria-expanded='true'] {\n margin-bottom: 0.375em;\n}\n.go-Tree a[aria-level='2'] {\n margin-bottom: 0.25rem;\n position: relative;\n}\n.go-Tree a[aria-level='3'] {\n padding-left: 2.5rem;\n}\n.go-Tree a[aria-level='4'] {\n border-left: 0.125rem solid var(--color-background-accented);\n margin-left: 2.5rem;\n padding-left: 0.5rem;\n}\n.go-Tree a[aria-selected='true'][aria-level='2']:not([aria-expanded])::before,\n.go-Tree a[aria-selected='true'][aria-level='3']:not([aria-expanded])::before {\n background-color: var(--color-brand-primary);\n border-radius: 50%;\n content: '';\n display: block;\n height: 0.3125rem;\n left: 0.4688rem;\n position: absolute;\n top: 0.75rem;\n width: 0.3125rem;\n}\n.go-Tree a[aria-expanded][aria-owns][aria-level='2']::before,\n.go-Tree a[aria-expanded][aria-owns][aria-level='3']::before {\n border-bottom: 0.25rem solid transparent;\n border-left: 0.25rem solid var(--color-border);\n border-right: 0;\n border-top: 0.25rem solid transparent;\n content: '';\n display: block;\n height: 0;\n left: 0.5rem;\n position: absolute;\n top: 0.625rem;\n transition: transform 0.1s linear;\n width: 0;\n}\n.go-Tree a[aria-expanded='true'][aria-level='2']::before,\n.go-Tree a[aria-expanded='true'][aria-level='3']::before {\n transform: rotate(90deg);\n}\n.go-Tree a[aria-expanded][aria-level='3']:not([empty])::before,\n.go-Tree a[aria-selected][aria-level='3']:not([empty])::before {\n left: 1.5rem;\n top: 0.75rem;\n}\n.go-Tree a[aria-selected='true'][aria-level='4'] {\n border-left: 0.125rem solid var(--color-brand-primary);\n}\n", "/*!\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.go-TabNav {\n margin: 0 0 0.5rem 0;\n}\n.go-TabNav ul {\n display: flex;\n gap: 2rem;\n}\n.go-TabNav li {\n border-bottom: 0.25rem transparent solid;\n display: flex;\n font-size: 1rem;\n height: 2.375rem;\n padding: 0 0.25rem;\n}\n.go-TabNav li[aria-current] {\n border-color: var(--color-brand-primary);\n}\n.go-TabNav li:hover {\n border-color: var(--color-brand-primary);\n}\n.go-TabNav a {\n align-items: center;\n color: var(--color-text-subtle);\n display: inline-flex;\n}\n.go-TabNav li:hover a {\n text-decoration: none;\n}\n.go-TabNav li[aria-current] a {\n color: var(--color-text);\n}\n", "/*!\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.go-Tooltip {\n border-radius: var(--border-radius);\n cursor: pointer;\n display: inline-block;\n position: relative;\n}\n.go-Tooltip > summary {\n list-style: none;\n}\n.go-Tooltip > summary::-webkit-details-marker,\n.go-Tooltip > summary::marker {\n display: none;\n}\n.go-Tooltip > summary > img {\n vertical-align: text-bottom;\n}\n.go-Tooltip p {\n background: var(--color-background) 80%;\n border: var(--border);\n border-radius: var(--border-radius);\n color: var(--color-text);\n font-size: 0.75rem;\n letter-spacing: 0.01875rem;\n line-height: 1rem;\n padding: 0.5rem;\n position: absolute;\n top: 1.5rem;\n white-space: normal;\n width: 12rem;\n z-index: 100;\n}\n", "/*!\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@import url('./reset.css');\n\n/**\n * Typography should be imported first in the list below to ensure expected\n * CSS rule inheritance on text elements.\n */\n@import url('./typography/typography.css');\n@import url('./button/button.css');\n@import url('./breadcrumb/breadcrumb.css');\n@import url('./carousel/carousel.css');\n@import url('./chip/chip.css');\n@import url('./clipboard/clipboard.css');\n@import url('./color/color.css');\n@import url('./footer/footer.css');\n@import url('./form/form.css');\n@import url('./gopher/gopher.css');\n@import url('./header/header.css');\n@import url('./icon/icon.css');\n@import url('./message/message.css');\n@import url('./modal/modal.css');\n@import url('./outline/tree.css');\n@import url('./tabnav/tabnav.css');\n@import url('./tooltip/tooltip.css');\n\n:root {\n /* Padding at the left and right of the viewport. */\n --gutter: 1.5rem;\n\n /* Margin between containers in the grid layout. */\n --gap: 1rem;\n\n /* The margin placed above elements scrolled to by clicking hash links. */\n --scroll-margin: calc(\n var(--js-sticky-header-height, 3.5rem) + var(--js-sticky-nav-height, 0) + 2rem\n );\n\n /* Default styles for page elements. */\n --border: 0.0625rem solid var(--color-border);\n --border-radius: 0.25rem;\n --box-shadow: 0 0 0.375rem 0 rgb(0 0 0 / 25%);\n --focus-box-shadow: 0 0 0.0625rem 0.0625rem rgb(0 112 210 / 60%);\n}\n\n[data-theme='dark'] {\n --box-shadow: 0 0.3125rem 0.9375rem rgb(0 0 0 / 45%);\n}\n@media (prefers-color-scheme: dark) {\n :root:not([data-theme='light']) {\n --box-shadow: 0 0.3125rem 0.9375rem rgb(0 0 0 / 45%);\n }\n}\n@media (min-width: 50rem) {\n :root {\n --gap: 2rem;\n --scroll-margin: calc(\n var(--js-sticky-header-height, 3.5rem) + var(--js-sticky-nav-height, 0) + 1rem\n );\n }\n}\n\n*:target {\n scroll-margin-top: var(--scroll-margin);\n}\n\nbody {\n background-color: var(--color-background);\n display: flex;\n flex-direction: column;\n min-height: 100vh;\n min-width: 23.5rem;\n\n /**\n * This is used to programatically detect whether overflow needs to be altered\n * to prevent jitter when focusing within fixed elements on iOS.\n * It also must be set to 'touch' for the fix to work.\n */\n -webkit-overflow-scrolling: touch;\n}\n\n.go-Container {\n display: flex;\n flex-direction: column;\n flex-grow: 1;\n height: 100%;\n margin-bottom: 5rem;\n}\n\n.go-Content {\n display: flex;\n flex-flow: column;\n gap: 1rem;\n margin: 0 auto;\n max-width: 63rem;\n min-height: 32rem;\n padding: 2rem var(--gutter);\n width: 100%;\n}\n\n.go-Content--center {\n justify-content: center;\n margin: auto;\n}\n", "/*!\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.JumpDialog-body {\n height: 12rem;\n overflow-y: auto;\n}\n\n.JumpDialog-list {\n display: flex;\n flex-direction: column;\n}\n\n.JumpDialog-input {\n width: 100%;\n}\n\n.JumpDialog a {\n padding: 0.25rem;\n text-decoration: none;\n}\n\n.JumpDialog .JumpDialog-active {\n background-color: var(--color-brand-primary);\n color: var(--white);\n}\n\n.ShortcutsDialog-key {\n text-align: right;\n}\n\n.ShortcutsDialog table {\n padding: 0 1rem;\n}\n\n.ShortcutsDialog td {\n padding-bottom: 0.5rem;\n padding-left: 0.5rem;\n}\n\n.ShortcutsDialog-theme span {\n display: none;\n}\n\n[data-theme='light'] .ShortcutsDialog-themeLight {\n display: initial;\n}\n\n[data-theme='dark'] .ShortcutsDialog-themeDark {\n display: initial;\n}\n\n[data-theme=''] .ShortcutsDialog-themeAuto,\n[data-theme='auto'] .ShortcutsDialog-themeAuto {\n display: initial;\n}\n"],
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"names": []
}
diff --git a/static/frontend/unit/main/main.js b/static/frontend/unit/main/main.js
index 525c597..0f1e6d6 100644
--- a/static/frontend/unit/main/main.js
+++ b/static/frontend/unit/main/main.js
@@ -1,8 +1,8 @@
-var h={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 t,i,s,r;this.exampleEl=e,this.anchorEl=e.querySelector("a"),this.errorEl=e.querySelector(h.EXAMPLE_ERROR),this.playButtonEl=e.querySelector(h.PLAY_BUTTON),this.shareButtonEl=e.querySelector(h.SHARE_BUTTON),this.formatButtonEl=e.querySelector(h.FORMAT_BUTTON),this.runButtonEl=e.querySelector(h.RUN_BUTTON),this.inputEl=this.makeTextArea(e.querySelector(h.EXAMPLE_INPUT)),this.outputEl=e.querySelector(h.EXAMPLE_OUTPUT),(t=this.playButtonEl)==null||t.addEventListener("click",()=>this.handleShareButtonClick()),(i=this.shareButtonEl)==null||i.addEventListener("click",()=>this.handleShareButtonClick()),(s=this.formatButtonEl)==null||s.addEventListener("click",()=>this.handleFormatButtonClick()),(r=this.runButtonEl)==null||r.addEventListener("click",()=>this.handleRunButtonClick()),!!this.inputEl&&(this.resize(),this.inputEl.addEventListener("keyup",()=>this.resize()),this.inputEl.addEventListener("keydown",l=>this.onKeydown(l)))}makeTextArea(e){var i,s;let t=document.createElement("textarea");return t.classList.add("Documentation-exampleCode","code"),t.spellcheck=!1,t.value=(i=e==null?void 0:e.textContent)!=null?i:"",(s=e==null?void 0:e.parentElement)==null||s.replaceChild(t,e),t}getAnchorHash(){var e;return(e=this.anchorEl)==null?void 0:e.hash}expand(){this.exampleEl.open=!0}resize(){var e;if((e=this.inputEl)==null?void 0:e.value){let t=(this.inputEl.value.match(/\n/g)||[]).length;this.inputEl.style.height=`${(20+t*20+12+2)/16}rem`}}onKeydown(e){e.key==="Tab"&&(document.execCommand("insertText",!1," "),e.preventDefault())}setInputText(e){this.inputEl&&(this.inputEl.value=e)}setOutputText(e){this.outputEl&&(this.outputEl.textContent=e)}setOutputHTML(e){this.outputEl&&(this.outputEl.innerHTML=e)}setErrorText(e){this.errorEl&&(this.errorEl.textContent=e),this.setOutputText("An error has occurred\u2026")}handleShareButtonClick(){var t;let e="https://play.golang.org/p/";this.setOutputText("Waiting for remote server\u2026"),fetch("/play/share",{method:"POST",body:(t=this.inputEl)==null?void 0:t.value}).then(i=>i.text()).then(i=>{let s=e+i;this.setOutputHTML(`<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 i,s,r,l;this.setOutputText("Waiting for remote server\u2026");let e=(s=(i=this.inputEl)==null?void 0:i.value)!=null?s:"",t=(l=(r=document.querySelector(".js-playgroundVars"))==null?void 0:r.dataset)!=null?l:{};console.log(t.unitpath),t.pagetype!=="std"&&(e=e.concat(`
+var h={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 t,i,s,r;this.exampleEl=e,this.anchorEl=e.querySelector("a"),this.errorEl=e.querySelector(h.EXAMPLE_ERROR),this.playButtonEl=e.querySelector(h.PLAY_BUTTON),this.shareButtonEl=e.querySelector(h.SHARE_BUTTON),this.formatButtonEl=e.querySelector(h.FORMAT_BUTTON),this.runButtonEl=e.querySelector(h.RUN_BUTTON),this.inputEl=this.makeTextArea(e.querySelector(h.EXAMPLE_INPUT)),this.outputEl=e.querySelector(h.EXAMPLE_OUTPUT),(t=this.playButtonEl)==null||t.addEventListener("click",()=>this.handleShareButtonClick()),(i=this.shareButtonEl)==null||i.addEventListener("click",()=>this.handleShareButtonClick()),(s=this.formatButtonEl)==null||s.addEventListener("click",()=>this.handleFormatButtonClick()),(r=this.runButtonEl)==null||r.addEventListener("click",()=>this.handleRunButtonClick()),!!this.inputEl&&(this.resize(),this.inputEl.addEventListener("keyup",()=>this.resize()),this.inputEl.addEventListener("keydown",l=>this.onKeydown(l)))}makeTextArea(e){var i,s;let t=document.createElement("textarea");return t.classList.add("Documentation-exampleCode","code"),t.spellcheck=!1,t.value=(i=e==null?void 0:e.textContent)!=null?i:"",(s=e==null?void 0:e.parentElement)==null||s.replaceChild(t,e),t}getAnchorHash(){var e;return(e=this.anchorEl)==null?void 0:e.hash}expand(){this.exampleEl.open=!0}resize(){var e;if((e=this.inputEl)==null?void 0:e.value){let t=(this.inputEl.value.match(/\n/g)||[]).length;this.inputEl.style.height=`${(20+t*20+12+2)/16}rem`}}onKeydown(e){e.key==="Tab"&&(document.execCommand("insertText",!1," "),e.preventDefault())}setInputText(e){this.inputEl&&(this.inputEl.value=e)}setOutputText(e){this.outputEl&&(this.outputEl.textContent=e)}setOutputHTML(e){this.outputEl&&(this.outputEl.innerHTML=e)}setErrorText(e){this.errorEl&&(this.errorEl.textContent=e),this.setOutputText("An error has occurred\u2026")}handleShareButtonClick(){var t;let e="https://play.golang.org/p/";this.setOutputText("Waiting for remote server\u2026"),fetch("/play/share",{method:"POST",body:(t=this.inputEl)==null?void 0:t.value}).then(i=>i.text()).then(i=>{let s=e+i;this.setOutputHTML(`<a href="${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 i,s,r,l;this.setOutputText("Waiting for remote server\u2026");let e=(s=(i=this.inputEl)==null?void 0:i.value)!=null?s:"",t=(l=(r=document.querySelector(".js-playgroundVars"))==null?void 0:r.dataset)!=null?l:{};t.modulepath!=="std"&&(e=e.concat(`
-- go.mod --
module play.ground
-require ${t.unitpath} ${t.version}
+require ${t.modulepath} ${t.version}
`)),fetch("/play/compile",{method:"POST",body:JSON.stringify({body:e,version:2})}).then(a=>a.json()).then(async({Events:a,Errors:d})=>{this.setOutputText(d||"");for(let u of a||[])this.setOutputText(u.Message),await new Promise(m=>setTimeout(m,u.Delay/1e6))}).catch(a=>{this.setErrorText(a)})}};function y(){let n=location.hash.match(/^#(example-.*)$/);if(n){let i=document.getElementById(n[1]);i&&(i.open=!0)}let e=[...document.querySelectorAll(h.PLAY_HREF)],t=i=>e.find(s=>s.hash===i.getAnchorHash());for(let i of document.querySelectorAll(h.PLAY_CONTAINER)){let s=new g(i),r=t(s);r?r.addEventListener("click",()=>{s.expand()}):console.warn("example href not found")}}var f=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 L(n){let e=document.createElement("label");e.classList.add("go-Label"),e.setAttribute("aria-label","Menu");let 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T=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 l=this.treeitems.find(a=>{var d;return(d=a.el)==null?void 0:d.href.endsWith(`#${s}`)});if(l)for(let a of this.observerCallbacks)a(l);break}},{threshold:1,rootMargin:"-60px 0px 0px 0px"});for(let i of 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A(r,this,i),this.treeitems.push(s),this.firstChars.push(s.label.substring(0,1).toLowerCase())),r.firstElementChild&&e(r,s),r=r.nextElementSibling};e(this.el,null),this.treeitems.map((t,i)=>t.index=i)}updateVisibleTreeitems(){this.firstTreeitem=this.treeitems[0];for(let e of this.treeitems){let t=e.groupTreeitem;for(e.isVisible=!0;t&&t.el!==this.el;)t.isExpanded()||(e.isVisible=!1),t=t.groupTreeitem;e.isVisible&&(this.lastTreeitem=e)}}setFocusToItem(e,t=!0){e.el.tabIndex=0,t&&e.el.focus();for(let i of this.treeitems)i!==e&&(i.el.tabIndex=-1)}getIndexFirstChars(e,t){for(let i=e;i<this.firstChars.length;i++)if(this.treeitems[i].isVisible&&t===this.firstChars[i])return i;return-1}},A=class{constructor(e,t,i){var l,a,d,u,m;e.tabIndex=-1,this.el=e,this.groupTreeitem=i,this.label=(a=(l=e.textContent)==null?void 0:l.trim())!=null?a:"",this.tree=t,this.depth=((i==null?void 0:i.depth)||0)+1,this.index=0;let s=e.parentElement;(s==null?void 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/*!
* @license
diff --git a/static/frontend/unit/main/main.js.map b/static/frontend/unit/main/main.js.map
index 540f8ab..f1b8149 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 accommodate 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 private setOutputHTML(output: string) {\n if (this.outputEl) {\n this.outputEl.innerHTML = 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.setOutputHTML(`<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 let codeWithModFile = this.inputEl?.value ?? '';\n const moduleVars = document.querySelector<HTMLDivElement>('.js-playgroundVars')?.dataset ?? {};\n console.log(moduleVars.unitpath);\n if (moduleVars.pagetype !== 'std') {\n codeWithModFile = codeWithModFile.concat(`\n-- go.mod --\nmodule play.ground\n\nrequire ${moduleVars.unitpath} ${moduleVars.version}\n`);\n }\n fetch('/play/compile', {\n method: 'POST',\n body: JSON.stringify({ body: codeWithModFile, version: 2 }),\n })\n .then(res => res.json())\n .then(async ({ Events, Errors }) => {\n this.setOutputText(Errors || '');\n for (const e of Events || []) {\n this.setOutputText(e.Message);\n await new Promise(resolve => setTimeout(resolve, e.Delay / 1000000));\n }\n })\n .catch(err => {\n this.setErrorText(err);\n });\n }\n}\n\nexport function initPlaygrounds(): void {\n const exampleHashRegex = location.hash.match(/^#(example-.*)$/);\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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+ "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 accommodate 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 = `${(20 + numLineBreaks * 20 + 12 + 2) / 16}rem`;\n }\n }\n\n /**\n * Handler to override keyboard behavior in the playground's\n * textarea element.\n *\n * Tab key inserts tabs into the example playground instead of\n * switching to the next interactive element.\n * @param e input element keyboard event.\n */\n private onKeydown(e: KeyboardEvent) {\n if (e.key === 'Tab') {\n document.execCommand('insertText', false, '\\t');\n e.preventDefault();\n }\n }\n\n /**\n * Changes the text of the example's input box.\n */\n private setInputText(output: string) {\n if (this.inputEl) {\n this.inputEl.value = output;\n }\n }\n\n /**\n * Changes the text of the example's output box.\n */\n private setOutputText(output: string) {\n if (this.outputEl) {\n this.outputEl.textContent = output;\n }\n }\n\n private setOutputHTML(output: string) {\n if (this.outputEl) {\n this.outputEl.innerHTML = output;\n }\n }\n\n /**\n * Sets the error message text and overwrites\n * output box to indicate a failed response.\n */\n private setErrorText(err: string) {\n if (this.errorEl) {\n this.errorEl.textContent = err;\n }\n this.setOutputText('An error has occurred\u2026');\n }\n\n /**\n * Opens a new window to play.golang.org using the\n * example snippet's code in the playground.\n */\n private handleShareButtonClick() {\n const PLAYGROUND_BASE_URL = 'https://play.golang.org/p/';\n\n this.setOutputText('Waiting for remote server\u2026');\n\n fetch('/play/share', {\n method: 'POST',\n body: this.inputEl?.value,\n })\n .then(res => res.text())\n .then(shareId => {\n const href = PLAYGROUND_BASE_URL + shareId;\n this.setOutputHTML(`<a href=\"${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 let codeWithModFile = this.inputEl?.value ?? '';\n const moduleVars = document.querySelector<HTMLDivElement>('.js-playgroundVars')?.dataset ?? {};\n if (moduleVars.modulepath !== 'std') {\n codeWithModFile = codeWithModFile.concat(`\n-- go.mod --\nmodule play.ground\n\nrequire ${moduleVars.modulepath} ${moduleVars.version}\n`);\n }\n fetch('/play/compile', {\n method: 'POST',\n body: JSON.stringify({ body: codeWithModFile, version: 2 }),\n })\n .then(res => res.json())\n .then(async ({ Events, Errors }) => {\n this.setOutputText(Errors || '');\n for (const e of Events || []) {\n this.setOutputText(e.Message);\n await new Promise(resolve => setTimeout(resolve, e.Delay / 1000000));\n }\n })\n .catch(err => {\n this.setErrorText(err);\n });\n }\n}\n\nexport function initPlaygrounds(): void {\n const exampleHashRegex = location.hash.match(/^#(example-.*)$/);\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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"names": []
}
diff --git a/static/shared/header/header.css b/static/shared/header/header.css
index f5a1452..b98d0f7 100644
--- a/static/shared/header/header.css
+++ b/static/shared/header/header.css
@@ -303,6 +303,7 @@
text-decoration: none;
}
.go-Header-submenu .go-Header-submenuItem {
+ line-height: 1;
padding-bottom: 1.5rem;
}
.go-Header-submenu .go-Header-submenuItem p {
diff --git a/static/shared/header/header.ts b/static/shared/header/header.ts
index d33e4e5..9aa2bec 100644
--- a/static/shared/header/header.ts
+++ b/static/shared/header/header.ts
@@ -107,7 +107,6 @@
':scope > .go-NavigationDrawer-nav > .go-NavigationDrawer-list > .go-NavigationDrawer-listItem > a, :scope > .go-NavigationDrawer-nav > .go-NavigationDrawer-list > .go-NavigationDrawer-listItem > .go-Header-socialIcons > a'
) || []
);
- console.log(menuItems);
const anchorEl = navigationDrawer.querySelector('.go-NavigationDrawer-header > a');
if (anchorEl) {
