Andreas Reinhold / reiniandClaude Opus 5
5a9211acd4
Plan step 36 ("Interaction is the shared classes", the user, 2026-09-14).
The trigger button (fab-menu.css) and each item (fab-menu-item.css)
hand-rolled md-state-layer and md-focus-ring; both now render the classes
and keep only their own colour, shape and motion. Neither needs
md-touch-target: the trigger and every item draw at 56px.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9
157 lines
6.4 KiB
CSS
157 lines
6.4 KiB
CSS
/*
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* <x-fab-menu>: an M3 Expressive FAB that opens into a short list of related actions.
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*
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* FabMenuBaselineTokens (androidx Compose Material 3, Apache-2.0): the trigger is a 56px FAB,
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* `data-md-color`'s container, large corner, elevation 3, rising to elevation 4 under a hovering
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* pointer; while its list is open (`aria-expanded`) it turns fully round and paints the colour
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* itself, on the default spatial and effects springs (ACT-19 splits the two). It renders the
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* foundation's `md-state-layer` and `md-focus-ring` (foundation/interaction.css); its 56px already
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* meets M3's target, so it needs no `md-touch-target`. The list sits
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* `data-md-position`'s corner of the trigger, 8px padding — the room the close button keeps below
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* the first item — and scrolls past `calc(100dvh - 128px)` on a short window, behind the close
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* button, which stays fixed (ACT-32).
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*
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* The items (fab-menu-item.css) rise into place as the list opens and sink back as it closes: the
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* entry is `@starting-style` on the item itself; the exit needs the state to be readable while the
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* popover is on its way out, which `[data-md-fab-menu-popover]:not(:popover-open) > *` is — the
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* popover keeps `display: flex` for the length of its own discrete transition, so the items have
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* somewhere to animate to (ACT-33). The Tailwind-era rule sat outside the layers to beat the
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* item's utilities; inside the layer it still beats fab-menu-item.css's resting `translate: 0 0`
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* and `opacity: 1`, on specificity — an attribute and a pseudo-class against the item's one
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* attribute — whichever order the two files are bundled in.
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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-fab-menu] {
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position: relative;
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display: inline-flex;
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}
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[data-md-fab-menu-anchor] {
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display: inline-flex;
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}
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[data-md-fab-menu-trigger] {
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--md-fab-menu-container: var(--md-sys-color-primary-container);
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--md-fab-menu-on-container: var(--md-sys-color-on-primary-container);
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--md-fab-menu-color: var(--md-sys-color-primary);
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--md-fab-menu-on-color: var(--md-sys-color-on-primary);
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display: inline-flex;
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flex-shrink: 0;
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align-items: center;
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justify-content: center;
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inline-size: var(--md-sys-measurement-space700);
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block-size: var(--md-sys-measurement-space700);
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border-radius: var(--md-sys-shape-corner-lg);
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background-color: var(--md-fab-menu-container);
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color: var(--md-fab-menu-on-container);
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box-shadow: var(--md-sys-elevation-3);
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cursor: pointer;
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-webkit-user-select: none;
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user-select: none;
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transition-property: border-radius, background-color, color, box-shadow;
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transition-duration:
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var(--md-sys-motion-spatial-default-duration), var(--md-sys-motion-effects-default-duration),
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var(--md-sys-motion-effects-default-duration), var(--md-sys-motion-effects-default-duration);
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transition-timing-function:
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var(--md-sys-motion-spatial-default), var(--md-sys-motion-effects-default),
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var(--md-sys-motion-effects-default), var(--md-sys-motion-effects-default);
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@media (hover: hover) {
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&:hover {
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box-shadow: var(--md-sys-elevation-4);
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}
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}
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&[aria-expanded='true'] {
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border-radius: var(--md-sys-shape-corner-full);
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background-color: var(--md-fab-menu-color);
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color: var(--md-fab-menu-on-color);
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}
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}
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[data-md-fab-menu-trigger][data-md-color='secondary'] {
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--md-fab-menu-container: var(--md-sys-color-secondary-container);
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--md-fab-menu-on-container: var(--md-sys-color-on-secondary-container);
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--md-fab-menu-color: var(--md-sys-color-secondary);
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--md-fab-menu-on-color: var(--md-sys-color-on-secondary);
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}
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[data-md-fab-menu-trigger][data-md-color='tertiary'] {
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--md-fab-menu-container: var(--md-sys-color-tertiary-container);
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--md-fab-menu-on-container: var(--md-sys-color-on-tertiary-container);
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--md-fab-menu-color: var(--md-sys-color-tertiary);
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--md-fab-menu-on-color: var(--md-sys-color-on-tertiary);
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}
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[data-md-fab-menu-close-icon] {
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display: none;
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}
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[data-md-fab-menu-trigger][aria-expanded='true'] [data-md-fab-menu-icon] {
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display: none;
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}
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[data-md-fab-menu-trigger][aria-expanded='true'] [data-md-fab-menu-close-icon] {
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display: inline-flex;
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}
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[data-md-fab-menu-popover] {
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inset: auto;
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margin: 0;
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display: none;
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flex-direction: column;
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gap: var(--md-sys-measurement-space50);
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max-block-size: calc(100dvh - 128px);
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overflow-y: auto;
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border-width: 0;
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background-color: transparent;
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padding: var(--md-sys-measurement-space100);
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transition-property: display, overlay;
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transition-duration: var(--md-sys-motion-spatial-fast-duration);
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transition-behavior: allow-discrete;
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&:popover-open {
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display: flex;
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}
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}
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[data-md-fab-menu-popover][data-md-position='top-end'] {
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margin-inline: calc(-1 * var(--md-sys-measurement-space100));
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margin-block-start: calc(-1 * var(--md-sys-measurement-space100));
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align-items: flex-end;
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position-area: top span-left;
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}
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[data-md-fab-menu-popover][data-md-position='top-start'] {
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margin-inline: calc(-1 * var(--md-sys-measurement-space100));
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margin-block-start: calc(-1 * var(--md-sys-measurement-space100));
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align-items: flex-start;
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position-area: top span-right;
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}
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[data-md-fab-menu-popover][data-md-position='bottom-end'] {
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margin-inline: calc(-1 * var(--md-sys-measurement-space100));
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margin-block-end: calc(-1 * var(--md-sys-measurement-space100));
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align-items: flex-end;
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position-area: bottom span-left;
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}
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[data-md-fab-menu-popover][data-md-position='bottom-start'] {
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margin-inline: calc(-1 * var(--md-sys-measurement-space100));
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margin-block-end: calc(-1 * var(--md-sys-measurement-space100));
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align-items: flex-start;
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position-area: bottom span-right;
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}
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[data-md-fab-menu-popover]:not(:popover-open) > * {
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translate: 0 var(--md-sys-measurement-space100);
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opacity: 0;
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}
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}
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