- ButtonInstance gains optional x/y; new instances default to stage
center and setButtonInstancePosition updates them
- useButtonRuntime composable holds per-instance state/disabled
overrides (runtime-only, not persisted). getState layers the
runtime disabled override on top of the persisted initial flag.
- store.actionRuntime's setButtonState/setButtonDisabled now drive
useButtonRuntime instead of mutating the scene, so script-triggered
state changes stay ephemeral
- CanvasStage renders each visible (playhead >= startTime) button
instance inside a <v-group> at (bi.x, bi.y), drawing the current
state's layer stack with draggable/listening disabled plus a
transparent hit-rect sized to the clip's hitArea or the bbox of
the first rect/circle layer. The group wires mouseenter/leave/
down/up into the state machine and fires onClick via evalAction.
- exportPlayer runtime mirrors the same thing: getEffectiveButtonState,
per-frame buttonHits array, canvas-level mousemove/down/up handlers
do their own hit testing in scene space. RUNTIME_VERSION bumped to 5.
- tests cover useButtonRuntime defaults/overrides and the
store.actionRuntime → runtime-state roundtrip via label resolution.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
thandClaude Opus 4.7
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