SealShare's only navigation is a floating toolbar at place="bottom". In 1.x it set --material-bottom-bar to lift the snackbar over it; in 2.0.0 the toolbar reads that variable to place itself, so an application can no longer set it, and the snackbar landed on the toolbar. M3 nudges a snackbar "upward to avoid overlapping FABs/docked toolbars" and never puts one in front of navigation. A bottom-placed toolbar now publishes --material-bottom-toolbar, the distance from the window's bottom edge to its top: floating 64px (as tall as an md or lg FAB beside it), docked 64px plus the safe area it pads, rounded docked floating from 840px. It is declared on :root and again on the scaffold's root, the only place its formula sees the bar. The snackbar clears whichever of the bar and the toolbar reaches higher, and a page pads its end with it. Two Chromium tests, both failing on the old formula: a docked toolbar on a scaffold's navigation bar, and a floating toolbar without a scaffold (plan step 46). Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
139 lines
5.3 KiB
CSS
139 lines
5.3 KiB
CSS
/*
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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`, and above a toolbar placed at the
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* bottom through the `--material-bottom-toolbar` toolbar.css publishes — whichever reaches higher,
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* as M3 nudges a snackbar clear of a docked toolbar and never in front of navigation;
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* `data-md-position="bottom-start"` 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 and render the foundation's
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* `md-state-layer`, `md-focus-ring` and `md-touch-target` (foundation/interaction.css) to reach
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* M3's 48px target (ACT-18); nothing here copies their rules.
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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(max(var(--material-bottom-bar, 0px), var(--material-bottom-toolbar, 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;
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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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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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}
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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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