Andreas Reinhold / reiniandClaude Opus 5
6a133c2c67
Both scrims are shown and hidden by Alpine's `x-show`, and faded by CSS:
closing set `display: none` inline in the same frame as the opacity
change, and `transition-behavior: allow-discrete` on `display` held the
element for the fade. Firefox does not transition `display`, so no
transition started there and the scrim vanished at once — what
ContainmentTest's two fade-out tests caught.
Alpine now holds `display` itself: `x-transition` with a class string
waits for the element's computed transition-duration (the effects token,
zero under reduced motion) before hiding it, the same in every engine,
and registering `enter` too means reopening during the fade cancels the
pending hide. `display` leaves the scrims' CSS transitions, so Chrome and
Safari do not hold it a second time after Alpine's hold.
The Alpine transition also holds `$nextTick` until the sheet is shown,
which menu.js's openSheet() relies on ("Alpine holds $nextTick until
then") and which had been lost when the bottom sheet moved off
x-transition. Without it `focusItem()` could run while the sheet was
still `display: none`, so ActionsTest's sheet-at-compact menu and its
filter field did not take the focus in Firefox and Safari; both pass
there again.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
251 lines
9.7 KiB
CSS
251 lines
9.7 KiB
CSS
/*
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* `<x-drawer>`: M3's side sheet, modal by default and co-planar as `standard` from 840px
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* (docs/reference/m3/components-actions-communication-containment.md § Side sheets → Specs; no
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* androidx Compose token file exists for it — Compose support is "Unavailable" per the site — so
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* the numbers come from the specs page and, for the standard variant's 0dp elevation,
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* material-components-android's `SideSheet.md`).
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*
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* [data-md-drawer] the wrapper; data-md-open, data-md-standard
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* [data-md-drawer-scrim] modal only (a standard sheet's is hidden from 840px)
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* [data-md-drawer-sheet] surface-container-low, elevation 1; data-md-side
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* [data-md-drawer-head] title/subtitle/close, and the separator's divider
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* [data-md-drawer-head-row], [data-md-drawer-heading], [data-md-drawer-title],
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* [data-md-drawer-subtitle], [data-md-drawer-close]
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* [data-md-drawer-body] a size container, so its contents lay out by the sheet's own
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* width (`@md:`), never the viewport's
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* [data-md-drawer-actions] left-aligned, 72dp (C-10 — a dialog's are trailing-aligned)
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*
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* 400px cap, 24dp start/end padding, a large corner on the inner edge only — from the specs
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* table. It enters on the emphasized-decelerate easing rather than a spring, because a sheet
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* anchored to an edge that overshot would open a gap, and leaves on emphasized accelerate: the
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* view keeps `x-show`, so `@starting-style` gives the entry its start and `allow-discrete` holds
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* `display` through the exit, whose timing comes from the closed state's own rule (a transition
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* takes the after-change style's). Reduced motion zeroes both duration tokens (tokens/motion.css).
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* Below `expanded` it slides, from whichever edge `data-md-side` names in the document's direction;
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* once `standard` makes it co-planar it only fades (an in-flow box does not need to travel). Every
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* state rule matches the sheet and scrim as the root's children, so a sheet nested in an open one
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* keeps its own.
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*
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* A `standard` sheet drops the scrim, the trap and the elevation, and swaps surface-container-low
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* for `surface` with an outline-variant rule down its inner edge, in place of the scrim
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* (its anatomy's "Divider (optional)"). Below `expanded` (840px) it is the modal sheet — M3 caps
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* a side sheet at 400dp, and a 600px window has too little room left beside one, so the switch
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* sits at `expanded` rather than `medium`. `data-md-drawer-collapsed` (the view, from the
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* `wide` — window ≥ 840px — Alpine state) takes the standard sheet out of the layout entirely
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* while it is closed there, so the content beside it fills the space.
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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 './button.css';
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@import './divider.css';
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@layer material.components {
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/* The scrim fades in from `@starting-style` and back out while the view's `x-transition` holds
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its `display` for this duration. Not `allow-discrete` on `display`: Firefox does not transition
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`display`, so the scrim vanished there, and in the other engines it would hold a second time
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after Alpine's hold. */
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[data-md-drawer-scrim] {
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position: fixed;
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inset: 0;
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z-index: 40;
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background-color: color-mix(in srgb, var(--md-sys-color-scrim) 32%, transparent);
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opacity: 0;
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transition-property: opacity;
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transition-duration: var(--md-sys-motion-effects-default-duration);
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transition-timing-function: var(--md-sys-motion-effects-default);
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}
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[data-md-drawer][data-md-open] > [data-md-drawer-scrim] {
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opacity: 1;
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}
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@starting-style {
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[data-md-drawer][data-md-open] > [data-md-drawer-scrim] {
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opacity: 0;
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}
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}
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/* Closed, the sheet waits one width past its own edge (`--sheet-offset`, mirrored in RTL) and
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slides there on emphasized accelerate; open, it comes back on emphasized decelerate. */
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[data-md-drawer-sheet] {
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--sheet-offset: 100%;
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position: fixed;
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top: var(--material-safe-top, env(safe-area-inset-top));
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bottom: 0;
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z-index: 50;
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display: flex;
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width: 100%;
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flex-direction: column;
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overflow-y: auto;
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padding: var(--md-sys-measurement-space300);
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background-color: var(--md-sys-color-surface-container-low);
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color: var(--md-sys-color-on-surface);
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box-shadow: var(--md-sys-elevation-1);
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translate: var(--sheet-offset) 0;
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transition-property: translate, display;
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transition-duration: var(--md-sys-motion-effects-default-duration);
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transition-timing-function: var(--md-sys-motion-easing-emphasized-accelerate);
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transition-behavior: allow-discrete;
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}
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[data-md-drawer-sheet][data-md-side='end'] {
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inset-inline-end: 0;
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}
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[data-md-drawer-sheet][data-md-side='start'] {
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--sheet-offset: -100%;
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inset-inline-start: 0;
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}
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[data-md-drawer-sheet][data-md-side='end']:is([dir='rtl'], [dir='rtl'] *) {
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--sheet-offset: -100%;
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}
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[data-md-drawer-sheet][data-md-side='start']:is([dir='rtl'], [dir='rtl'] *) {
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--sheet-offset: 100%;
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}
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[data-md-drawer][data-md-open] > [data-md-drawer-sheet] {
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translate: 0 0;
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transition-duration: var(--md-sys-motion-spatial-default-duration);
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transition-timing-function: var(--md-sys-motion-easing-emphasized-decelerate);
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}
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@starting-style {
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[data-md-drawer][data-md-open] > [data-md-drawer-sheet] {
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translate: var(--sheet-offset) 0;
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}
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}
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@media (width >= 600px) {
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[data-md-drawer-sheet] {
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width: var(--sheet-width);
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max-width: calc(100vw - 64px);
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}
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[data-md-drawer-sheet][data-md-side='end'] {
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border-start-start-radius: var(--md-sys-shape-corner-lg);
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border-end-start-radius: var(--md-sys-shape-corner-lg);
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}
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[data-md-drawer-sheet][data-md-side='start'] {
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border-start-end-radius: var(--md-sys-shape-corner-lg);
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border-end-end-radius: var(--md-sys-shape-corner-lg);
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}
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}
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/* Co-planar from expanded: sticky beside the content, no scrim, no elevation, flat on
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`surface` with an outline-variant rule down the inner edge instead. It only fades here —
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an in-flow box does not travel like an overlay does. */
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@media (width >= 840px) {
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[data-md-drawer][data-md-standard] {
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position: sticky;
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top: 0;
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height: 100dvh;
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flex-shrink: 0;
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align-self: flex-start;
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}
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[data-md-drawer][data-md-standard][data-md-drawer-collapsed] {
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display: none;
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}
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[data-md-drawer][data-md-standard] > [data-md-drawer-scrim] {
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display: none;
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}
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[data-md-drawer][data-md-standard] > [data-md-drawer-sheet] {
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position: relative;
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top: 0;
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z-index: auto;
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height: 100%;
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translate: 0 0;
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border-radius: var(--md-sys-shape-corner-none);
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background-color: var(--md-sys-color-surface);
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box-shadow: none;
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opacity: 0;
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transition-property: opacity, display;
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transition-duration: var(--md-sys-motion-effects-default-duration);
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transition-timing-function: var(--md-sys-motion-easing-emphasized-accelerate);
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}
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[data-md-drawer][data-md-standard][data-md-open] > [data-md-drawer-sheet] {
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opacity: 1;
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transition-duration: var(--md-sys-motion-spatial-default-duration);
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transition-timing-function: var(--md-sys-motion-easing-emphasized-decelerate);
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}
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@starting-style {
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[data-md-drawer][data-md-standard][data-md-open] > [data-md-drawer-sheet] {
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translate: 0 0;
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opacity: 0;
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}
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}
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[data-md-drawer][data-md-standard] > [data-md-drawer-sheet][data-md-side='end'] {
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border-inline-start: 1px solid var(--md-sys-color-outline-variant);
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}
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[data-md-drawer][data-md-standard] > [data-md-drawer-sheet][data-md-side='start'] {
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border-inline-end: 1px solid var(--md-sys-color-outline-variant);
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}
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}
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[data-md-drawer-head] {
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margin-bottom: var(--md-sys-measurement-space200);
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}
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[data-md-drawer-head-row] {
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display: flex;
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align-items: flex-start;
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justify-content: space-between;
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gap: 12px;
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}
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[data-md-drawer-heading] {
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min-width: 0;
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}
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[data-md-drawer-title] {
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font: var(--md-sys-typescale-title-lg);
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letter-spacing: var(--md-sys-typescale-title-lg-tracking);
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}
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[data-md-drawer-subtitle] {
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margin-top: var(--md-sys-measurement-space50);
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color: var(--md-sys-color-on-surface-variant);
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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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}
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[data-md-drawer-close] {
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display: inline-flex;
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flex-shrink: 0;
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margin-top: calc(-1 * var(--md-sys-measurement-space100));
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margin-inline-end: -12px;
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}
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[data-md-drawer-head] > [data-md-divider] {
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margin-top: var(--md-sys-measurement-space200);
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}
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[data-md-drawer-body] {
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container-type: inline-size;
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flex: 1 1 0%;
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}
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[data-md-drawer-actions] {
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display: flex;
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min-height: var(--md-sys-measurement-space900);
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flex-shrink: 0;
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flex-wrap: wrap;
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align-items: center;
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justify-content: flex-start;
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gap: var(--md-sys-measurement-space100);
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padding-top: var(--md-sys-measurement-space200);
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}
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}
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