Take the icon off the snackbar and lift the FAB clear of it

M3 says to avoid an icon in a snackbar and gives the supporting text no fourth
colour, so the state glyph and the 80% description are gone: a type now only
picks the announcement role. The 40px action and close buttons take the shared
touch-target, Escape dismisses a snackbar that holds the focus, and the host
publishes --material-snackbar-height on <html> so a `fab` button sits above the
snackbar instead of under it. Plan step 18, actions.md ACT-17, ACT-18, ACT-20,
ACT-34, ACT-35.

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
2026-09-14 06:09:47 +02:00
co-authored by Claude Opus 5
parent eac7f6a1de
commit 7bc4f740e7
7 changed files with 76 additions and 33 deletions
+7 -4
View File
@@ -11,7 +11,8 @@
* list and matching it position for position.
*
* `state-transition-fast` is the press/hover/select transition of a control the finger lands on:
* shape and size on the fast spatial spring, colour and elevation on the fast effects spring.
* shape, size and the place it sits on the fast spatial spring (a `fab` button nudges up when a
* snackbar arrives under it), colour and elevation on the fast effects spring.
* `state-transition-default` is the same pair one step slower, for the bigger morph of a FAB
* turning into a close button.
*
@@ -26,12 +27,14 @@
*/
@utility state-transition-fast {
transition-property: border-radius, padding, margin, background-color, color, box-shadow;
transition-property: border-radius, padding, margin, bottom, background-color, color, box-shadow;
transition-duration:
var(--md-sys-motion-spatial-fast-duration), var(--md-sys-motion-spatial-fast-duration), var(--md-sys-motion-spatial-fast-duration),
var(--md-sys-motion-spatial-fast-duration), var(--md-sys-motion-spatial-fast-duration),
var(--md-sys-motion-spatial-fast-duration), var(--md-sys-motion-spatial-fast-duration),
var(--md-sys-motion-effects-fast-duration), var(--md-sys-motion-effects-fast-duration), var(--md-sys-motion-effects-fast-duration);
transition-timing-function:
var(--md-sys-motion-spatial-fast), var(--md-sys-motion-spatial-fast), var(--md-sys-motion-spatial-fast),
var(--md-sys-motion-spatial-fast), var(--md-sys-motion-spatial-fast),
var(--md-sys-motion-spatial-fast), var(--md-sys-motion-spatial-fast),
var(--md-sys-motion-effects-fast), var(--md-sys-motion-effects-fast), var(--md-sys-motion-effects-fast);
}