Draw the snackbar host without Tailwind
Plan step 36 (actions). <x-toast> renders data-md-toast with data-md-position, its snackbar data-md-toast-snackbar with a bound data-md-two-line, data-md-toast-content with a bound data-md-toast-wrap, and data-md-toast-action/-dismiss; no class list. toast.css draws SnackbarTokens' inverse surface, 48/68px container, the two 40px controls reaching 48px targets with their own state layer and touch target (ACT-18), the enter transition and the position-start margin that grows from medium. data-toast becomes data-md-toast-snackbar and data-toast-action becomes data-md-toast-action (snackbar.js, navigation.js's hide-on-scroll guard, NavigationBarTest, CommunicationTest); a new data-md-toast-dismiss hook names the close button. ToastTest is rewritten on the hooks and ComponentStylesheet. CommunicationTest gains the owed tests: an actioned snackbar past the default timeout, Escape on a focused one, the live region before any message, and the two-line height with Alt+G reaching the action from elsewhere on the page. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9
This commit is contained in:
Andreas Reinhold / reini
co-authored by
Claude Opus 5
Claude Opus 5
parent
8cb8727f75
commit
ce8ac4d316
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/*
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* <x-toast>: the snackbar host — shows every toast queued behind it, one at a time.
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*
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* SnackbarTokens (androidx Compose Material 3, Apache-2.0): inverse-surface container,
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* inverse-on-surface text, an inverse-primary action, extra-small corners, elevation 3, 48px for
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* one line and 68px for two (SnackbarTokens.TwoLinesContainerHeight — the more precise of M3's
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* two published figures; the site's prose says 64dp). `[data-md-two-line]`, bound from whether
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* the current toast carries a description, pins the container to 68px instead of leaving it to
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* grow into it; below `medium` (600px), a two-line snackbar with an action wraps the action under
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* the text through `[data-md-toast-wrap]`, bound the same way — M3's "two lines with longer
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* action" configuration.
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*
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* It lifts above a bottom bar through `--material-bottom-bar`; `data-md-position="bottom-start"`
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* moves it to the start edge, with M3's margin growing from `medium`. resources/js/snackbar.js
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* publishes the snackbar's own height as `--material-snackbar-height`, so a FAB (fab.css) can
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* lift clear of it — M3 puts a snackbar above a FAB, never in front of or behind one (ACT-17).
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* Below `medium` it is full width; from there it hugs its line length, which an application's own
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* class can still bound.
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*
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* The action and the close button are both drawn at 40px but reach M3's 48px target (ACT-18) with
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* the same `::after` touch target the shared classes use (foundation/interaction.css); they draw
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* their own state layer and focus ring instead of those classes because the action's ink is
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* inverse-primary, not the button's inherited inverse-on-surface.
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*
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* It enters on a translate and a fade on the fast spatial spring, `@starting-style` giving both a
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* start. No state icon: M3 says to avoid one in a snackbar (ACT-20). The live region is the host
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* itself, in the page before any message is, never the snackbar that comes and goes (ACT-02);
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* resources/js/snackbar.js queues, times and dismisses a toast, including on Escape while it
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* holds the focus and on Alt+G, which moves the focus to one carrying an action (ACT-34).
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*/
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@layer material.reset, material.tokens, material.base, material.layout, material.components, material.text, material.visibility;
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@import './icon.css';
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@layer material.components {
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[data-md-toast] {
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position: fixed;
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z-index: 50;
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inset-inline: var(--md-sys-measurement-space200);
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bottom: calc(var(--material-bottom-bar, 0px) + var(--md-sys-measurement-space200));
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display: flex;
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justify-content: center;
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pointer-events: none;
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}
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[data-md-toast][data-md-position='bottom-start'] {
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justify-content: flex-start;
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}
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@media (width >= 600px) {
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[data-md-toast][data-md-position='bottom-start'] {
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inset-inline-start: var(--md-sys-measurement-space300);
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}
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}
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[data-md-toast-snackbar] {
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pointer-events: auto;
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display: flex;
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flex-wrap: wrap;
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align-items: center;
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gap: 12px;
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width: 100%;
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max-width: min(100%, 576px);
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min-height: var(--md-sys-measurement-space600);
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border-radius: var(--md-sys-shape-corner-xs);
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padding-block: 6px;
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padding-inline: var(--md-sys-measurement-space200) var(--md-sys-measurement-space100);
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background-color: var(--md-sys-color-inverse-surface);
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color: var(--md-sys-color-inverse-on-surface);
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box-shadow: var(--md-sys-elevation-3);
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translate: 0;
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opacity: 1;
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transition-property: translate, opacity;
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transition-duration: var(--md-sys-motion-spatial-fast-duration);
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transition-timing-function: var(--md-sys-motion-spatial-fast);
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@starting-style {
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translate: 0 16px;
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opacity: 0;
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}
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}
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[data-md-toast-snackbar][data-md-two-line] {
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min-height: 68px;
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}
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@media (width >= 600px) {
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[data-md-toast-snackbar] {
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width: auto;
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min-width: 344px;
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}
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}
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[data-md-toast-content] {
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min-width: 0;
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flex: 1 1 auto;
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padding-block: 6px;
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}
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@media (width < 600px) {
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[data-md-toast-content][data-md-toast-wrap] {
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flex-basis: 100%;
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}
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}
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[data-md-toast-title],
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[data-md-toast-description] {
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font: var(--md-sys-typescale-body-md);
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letter-spacing: var(--md-sys-typescale-body-md-tracking);
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font-variation-settings: normal;
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}
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:is([data-md-toast-action], [data-md-toast-dismiss]) {
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position: relative;
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isolation: isolate;
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flex-shrink: 0;
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border-radius: var(--md-sys-shape-corner-full);
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cursor: pointer;
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outline: none;
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&::before {
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content: '';
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position: absolute;
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inset: 0;
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z-index: -1;
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border-radius: inherit;
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background-color: currentColor;
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opacity: 0;
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pointer-events: none;
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transition: opacity var(--md-sys-motion-effects-fast-duration) var(--md-sys-motion-effects-fast);
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}
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&::after {
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content: '';
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position: absolute;
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top: 50%;
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left: 50%;
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width: 100%;
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height: 100%;
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min-width: var(--md-sys-measurement-space600);
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min-height: var(--md-sys-measurement-space600);
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translate: -50% -50%;
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}
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@media (hover: hover) {
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&:hover::before {
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opacity: var(--md-sys-state-hover-state-layer-opacity);
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}
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}
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&:focus-visible {
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outline: 3px solid var(--md-sys-color-secondary);
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outline-offset: 2px;
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}
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&:focus-visible::before {
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opacity: var(--md-sys-state-focus-state-layer-opacity);
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}
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&:active::before {
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opacity: var(--md-sys-state-pressed-state-layer-opacity);
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}
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}
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[data-md-toast-action] {
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margin-inline-start: auto;
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height: var(--md-sys-measurement-space500);
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padding-inline: 12px;
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color: var(--md-sys-color-inverse-primary);
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font: var(--md-sys-typescale-label-lg);
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letter-spacing: var(--md-sys-typescale-label-lg-tracking);
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font-variation-settings: normal;
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}
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[data-md-toast-dismiss] {
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display: inline-flex;
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align-items: center;
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justify-content: center;
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width: var(--md-sys-measurement-space500);
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height: var(--md-sys-measurement-space500);
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}
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}
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