a11y(darkmode): use a button for the theme toggle (#1335)
* Use a `<button>` for theme toggle * docs: Adds back Xinyang's cs garden to showcase (#1323) adding back my garden which was deleted from the cleanup showcase * feat(toc,explorer): add accessibility for toggle (#1327) * Restore focus highlight on explorer toggle button. Remove `unset: all` declaration causing `outline` property to be unset. This allows the default browser focus highlight to be shown. * Fix semantics of expandable sections (explorer, toc). This adds the appropriate aria attributes for the [disclosure pattern](https://www.w3.org/WAI/ARIA/apg/patterns/disclosure/examples/disclosure-image-description/#javascriptandcsssourcecode) and uses `visibility: hidden` to remove the hidden elements from the focus order without disrupting the animations. Further work is needed on the tree view nodes. * Run prettier for SCSS files. * feat: custom global latex macros (closes #1325) * chore: ts fixes * docs: recommend at least node 20 in gh * fix: unmemoize explorer on rebuild (closes #1077) * fix: pass buildId to worker * Fix theme button DOM hierarchy and styles * Restore functionality of theme button * `aria-label` on theme svgs so their accessible labels are included in button content --------- Co-authored-by: Xinyang Yu <47915643+xy-241@users.noreply.github.com> Co-authored-by: Jacky Zhao <j.zhao2k19@gmail.com>
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@ -9,9 +9,7 @@ import { classNames } from "../util/lang"
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const Darkmode: QuartzComponent = ({ displayClass, cfg }: QuartzComponentProps) => {
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return (
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<div class={classNames(displayClass, "darkmode")}>
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<input class="toggle" id="darkmode-toggle" type="checkbox" tabIndex={-1} />
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<label id="toggle-label-light" for="darkmode-toggle" tabIndex={-1}>
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<button class={classNames(displayClass, "darkmode")} id="darkmode">
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<svg
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xmlns="http://www.w3.org/2000/svg"
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xmlnsXlink="http://www.w3.org/1999/xlink"
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@ -22,12 +20,11 @@ const Darkmode: QuartzComponent = ({ displayClass, cfg }: QuartzComponentProps)
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viewBox="0 0 35 35"
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style="enable-background:new 0 0 35 35"
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xmlSpace="preserve"
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aria-label={i18n(cfg.locale).components.themeToggle.darkMode}
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>
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<title>{i18n(cfg.locale).components.themeToggle.darkMode}</title>
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<path d="M6,17.5C6,16.672,5.328,16,4.5,16h-3C0.672,16,0,16.672,0,17.5 S0.672,19,1.5,19h3C5.328,19,6,18.328,6,17.5z M7.5,26c-0.414,0-0.789,0.168-1.061,0.439l-2,2C4.168,28.711,4,29.086,4,29.5 C4,30.328,4.671,31,5.5,31c0.414,0,0.789-0.168,1.06-0.44l2-2C8.832,28.289,9,27.914,9,27.5C9,26.672,8.329,26,7.5,26z M17.5,6 C18.329,6,19,5.328,19,4.5v-3C19,0.672,18.329,0,17.5,0S16,0.672,16,1.5v3C16,5.328,16.671,6,17.5,6z M27.5,9 c0.414,0,0.789-0.168,1.06-0.439l2-2C30.832,6.289,31,5.914,31,5.5C31,4.672,30.329,4,29.5,4c-0.414,0-0.789,0.168-1.061,0.44 l-2,2C26.168,6.711,26,7.086,26,7.5C26,8.328,26.671,9,27.5,9z M6.439,8.561C6.711,8.832,7.086,9,7.5,9C8.328,9,9,8.328,9,7.5 c0-0.414-0.168-0.789-0.439-1.061l-2-2C6.289,4.168,5.914,4,5.5,4C4.672,4,4,4.672,4,5.5c0,0.414,0.168,0.789,0.439,1.06 L6.439,8.561z M33.5,16h-3c-0.828,0-1.5,0.672-1.5,1.5s0.672,1.5,1.5,1.5h3c0.828,0,1.5-0.672,1.5-1.5S34.328,16,33.5,16z M28.561,26.439C28.289,26.168,27.914,26,27.5,26c-0.828,0-1.5,0.672-1.5,1.5c0,0.414,0.168,0.789,0.439,1.06l2,2 C28.711,30.832,29.086,31,29.5,31c0.828,0,1.5-0.672,1.5-1.5c0-0.414-0.168-0.789-0.439-1.061L28.561,26.439z M17.5,29 c-0.829,0-1.5,0.672-1.5,1.5v3c0,0.828,0.671,1.5,1.5,1.5s1.5-0.672,1.5-1.5v-3C19,29.672,18.329,29,17.5,29z M17.5,7 C11.71,7,7,11.71,7,17.5S11.71,28,17.5,28S28,23.29,28,17.5S23.29,7,17.5,7z M17.5,25c-4.136,0-7.5-3.364-7.5-7.5 c0-4.136,3.364-7.5,7.5-7.5c4.136,0,7.5,3.364,7.5,7.5C25,21.636,21.636,25,17.5,25z"></path>
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</svg>
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</label>
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<label id="toggle-label-dark" for="darkmode-toggle" tabIndex={-1}>
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<svg
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xmlns="http://www.w3.org/2000/svg"
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xmlnsXlink="http://www.w3.org/1999/xlink"
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@ -38,12 +35,12 @@ const Darkmode: QuartzComponent = ({ displayClass, cfg }: QuartzComponentProps)
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viewBox="0 0 100 100"
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style="enable-background:new 0 0 100 100"
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xmlSpace="preserve"
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aria-label={i18n(cfg.locale).components.themeToggle.lightMode}
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>
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<title>{i18n(cfg.locale).components.themeToggle.lightMode}</title>
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<path d="M96.76,66.458c-0.853-0.852-2.15-1.064-3.23-0.534c-6.063,2.991-12.858,4.571-19.655,4.571 C62.022,70.495,50.88,65.88,42.5,57.5C29.043,44.043,25.658,23.536,34.076,6.47c0.532-1.08,0.318-2.379-0.534-3.23 c-0.851-0.852-2.15-1.064-3.23-0.534c-4.918,2.427-9.375,5.619-13.246,9.491c-9.447,9.447-14.65,22.008-14.65,35.369 c0,13.36,5.203,25.921,14.65,35.368s22.008,14.65,35.368,14.65c13.361,0,25.921-5.203,35.369-14.65 c3.872-3.871,7.064-8.328,9.491-13.246C97.826,68.608,97.611,67.309,96.76,66.458z"></path>
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</svg>
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</label>
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</div>
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</button>
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)
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}
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@ -11,7 +11,8 @@ const emitThemeChangeEvent = (theme: "light" | "dark") => {
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document.addEventListener("nav", () => {
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const switchTheme = (e: Event) => {
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const newTheme = (e.target as HTMLInputElement)?.checked ? "dark" : "light"
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const newTheme =
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document.documentElement.getAttribute("saved-theme") === "dark" ? "light" : "dark"
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document.documentElement.setAttribute("saved-theme", newTheme)
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localStorage.setItem("theme", newTheme)
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emitThemeChangeEvent(newTheme)
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@ -21,17 +22,13 @@ document.addEventListener("nav", () => {
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const newTheme = e.matches ? "dark" : "light"
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document.documentElement.setAttribute("saved-theme", newTheme)
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localStorage.setItem("theme", newTheme)
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toggleSwitch.checked = e.matches
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emitThemeChangeEvent(newTheme)
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}
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// Darkmode toggle
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const toggleSwitch = document.querySelector("#darkmode-toggle") as HTMLInputElement
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toggleSwitch.addEventListener("change", switchTheme)
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window.addCleanup(() => toggleSwitch.removeEventListener("change", switchTheme))
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if (currentTheme === "dark") {
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toggleSwitch.checked = true
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}
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const themeButton = document.querySelector("#darkmode") as HTMLButtonElement
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themeButton.addEventListener("click", switchTheme)
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window.addCleanup(() => themeButton.removeEventListener("click", switchTheme))
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// Listen for changes in prefers-color-scheme
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const colorSchemeMediaQuery = window.matchMedia("(prefers-color-scheme: dark)")
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@ -1,17 +1,15 @@
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.darkmode {
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cursor: pointer;
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padding: 0;
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position: relative;
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background: none;
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border: none;
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width: 20px;
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height: 20px;
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margin: 0 10px;
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& > .toggle {
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display: none;
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box-sizing: border-box;
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}
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text-align: inherit;
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& svg {
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cursor: pointer;
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opacity: 0;
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position: absolute;
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width: 20px;
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height: 20px;
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@ -29,20 +27,20 @@
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color-scheme: light;
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}
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:root[saved-theme="dark"] .toggle ~ label {
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:root[saved-theme="dark"] .darkmode {
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& > #dayIcon {
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opacity: 0;
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display: none;
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}
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& > #nightIcon {
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opacity: 1;
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display: inline;
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}
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}
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:root .toggle ~ label {
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:root .darkmode {
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& > #dayIcon {
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opacity: 1;
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display: inline;
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}
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& > #nightIcon {
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opacity: 0;
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display: none;
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}
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}
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