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feat(annotations): dim non-active annotations when a block is focused

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When activeAnnotationId is set, the active annotation stays at full
opacity with a highlight box-shadow, while all other annotations fade
to 30% opacity (300ms ease transition). When no block is focused,
all annotations show at full opacity.

Prop chain: activeAnnotationId flows from PdfViewer → AnnotationLayer.

2 new tests (RED/GREEN):
- dims non-active annotations when activeAnnotationId is set
- shows all at full opacity when no activeAnnotationId

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Marcel
2026-04-05 23:26:02 +02:00
parent b4212f5e86
commit d389dc2023
3 changed files with 36 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
frontend/src/lib/components/AnnotationLayer.svelte
View File

@@ -13,6 +13,7 @@ let {
canDraw,
color,
blockNumbers = {},
activeAnnotationId = null,
onDraw,
onAnnotationClick
}: {
@@ -20,6 +21,7 @@ let {
canDraw: boolean;
color: string;
blockNumbers?: Record<string, number>;
activeAnnotationId?: string | null;
onDraw: (rect: DrawRect) => void;
onAnnotationClick?: (id: string) => void;
} = $props();
@@ -121,11 +123,12 @@ const containerStyle = $derived(
top: {annotation.y * 100}%;
width: {annotation.width * 100}%;
height: {annotation.height * 100}%;
background-color: {hexToRgba(annotation.color, hoveredId === annotation.id ? 0.5 : 0.3)};
box-shadow: {hoveredId === annotation.id ? `inset 0 0 0 2px ${hexToRgba(annotation.color, 0.8)}` : 'none'};
background-color: {hexToRgba(annotation.color, hoveredId === annotation.id || annotation.id === activeAnnotationId ? 0.5 : 0.3)};
box-shadow: {annotation.id === activeAnnotationId ? `inset 0 0 0 2px ${hexToRgba(annotation.color, 0.8)}` : hoveredId === annotation.id ? `inset 0 0 0 2px ${hexToRgba(annotation.color, 0.8)}` : 'none'};
opacity: {activeAnnotationId && annotation.id !== activeAnnotationId ? 0.3 : 1};
pointer-events: auto;
cursor: pointer;
transition: background-color 0.15s ease, box-shadow 0.15s ease;
transition: background-color 0.15s ease, box-shadow 0.15s ease, opacity 0.3s ease;
"
>
{#if blockNumbers[annotation.id]}