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notifications: click-through-except-buttons input region + push-down entrance

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surface::click_through set a completely empty input region on the toast
so every pointer event passed through -- including to the toast's own
action buttons and inline-reply entry. Replace it with
surface::set_hit_region(window, widgets), which sets the input region to
the union of the given widgets' rectangles instead of empty; everywhere
else on the surface stays click-through exactly as before.

popup.rs recomputes this via refresh_hit_region every time the card set
could have changed (shown, dismissed, expired -- routed through the one
dismiss() function) and keeps recomputing every frame for HIT_TRACK_MS
afterward, since a card's own entrance animation or the stack's
push-down reflow can still be moving a button on the frame the change
happens. collect_interactive walks the real widget tree for
GtkButton/GtkEntry rather than tracking a flat list, so it can't drift
out of sync with make_card's structure. build_window's connect_map
handles the first-map race the same way surface::click_through used to.

Also: spring_in_card grows a newly shown card's height from 0 to its
natural size via bread_theme::anim::spring_to (same technique as
main.rs's animate_drawer_height), so the existing stack gets pushed
down smoothly instead of jumping.

KeyboardMode::None is unchanged on the toast; history.rs's OnDemand
mode is untouched.

Still to do: the actual dismiss button in make_card (this commit wires
the mechanism that will hit-test it, but no card has one yet).
This commit is contained in:
Breadway 2026-08-26 19:30:08 +08:00
parent ba4e3480d4
commit 3eada87c7d
4 changed files with 216 additions and 40 deletions
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11
src/theme.rs
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@ -341,6 +341,17 @@ fn load_css() -> String {
.notification-action {{ padding: 2px 8px; font-size: 11px; border-radius: {radius_sm}; }}\
.notification-reply {{ margin-top: 6px; }}\
.notification-reply-entry {{ min-width: 0; }}\
/* NOTIFICATION INTERACTION #A: a direct dismiss control, floated\
in the card's top-right corner via an Overlay (see popup.rs's\
`make_card`) rather than a full extra header row, so it doesn't\
add vertical bulk the approved demo's own card never has. */\
.notification-dismiss {{ min-width: 18px; min-height: 18px; padding: 0;\
margin: 2px; border-radius: {radius_pill}; background: transparent;\
color: @on-bg; opacity: 0.45; font-size: 12px; font-weight: bold;\
border: none; outline: none; box-shadow: none;\
transition: background-color 0.18s {spring_settle}, opacity 0.18s ease; }}\
.notification-dismiss:hover {{ opacity: 1; background: alpha(@on-bg, 0.16); }}\
.notification-dismiss:active {{ background: alpha(@on-bg, 0.24); }}\
.history-title {{ font-weight: bold; font-size: 13px; }}\
.history-close {{ padding: 2px 8px; }}\
.history-empty {{ opacity: 0.5; padding: 8px 0; }}\