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Draggable playhead #12

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Merged
tadaspetra merged 1 commit into from
Jun 11, 2026
Merged

Draggable playhead #12

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29 changes: 26 additions & 3 deletions src/index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -372,6 +372,7 @@ <h2 class="text-xs font-medium text-neutral-500 uppercase tracking-wider mb-2">R
<div class="flex rounded-lg border border-neutral-800 overflow-hidden">
<!-- Track labels (fixed) -->
<div class="shrink-0 bg-neutral-950 border-r border-neutral-800/60 select-none">
<div class="h-4 border-b border-neutral-800/60"></div>
<div
class="h-8 flex items-center px-2.5 text-[10px] font-medium text-neutral-500 uppercase tracking-wider"
>
Expand Down Expand Up @@ -404,6 +405,28 @@ <h2 class="text-xs font-medium text-neutral-500 uppercase tracking-wider mb-2">R
class="relative cursor-pointer select-none"
style="min-width: 100%"
>
<!-- Playhead ruler (drag-to-scrub) -->
<div
id="editorPlayheadRuler"
class="relative h-4 bg-neutral-950 border-b border-neutral-800/60 overflow-visible"
>
<div
id="editorPlayhead"
class="absolute top-0 bottom-0 pointer-events-auto z-30"
style="left: 0%; transform: translateX(-50%); cursor: ew-resize"
>
<div
class="absolute left-1/2 top-0 -translate-x-1/2"
style="
width: 0;
height: 0;
border-left: 6px solid transparent;
border-right: 6px solid transparent;
border-top: 8px solid #ffffff;
"
></div>
</div>
</div>
<!-- Screen track -->
<div id="editorScreenTrack" class="relative h-8 bg-neutral-900 overflow-hidden">
<div id="editorSectionMarkers" class="absolute inset-0 z-[1]"></div>
Expand Down Expand Up @@ -438,11 +461,11 @@ <h2 class="text-xs font-medium text-neutral-500 uppercase tracking-wider mb-2">R
style="opacity: 0.65"
></canvas>
</div>
<!-- Scrubber (spans all tracks) -->
<!-- Scrubber (spans all tracks below the playhead ruler) -->
<div
id="editorScrubber"
class="absolute top-0 bottom-0 w-0.5 bg-white pointer-events-none z-20"
style="left: 0%"
class="absolute bottom-0 w-0.5 bg-white pointer-events-none z-20"
style="left: 0%; top: 1rem"
></div>
</div>
</div>
Expand Down
21 changes: 21 additions & 0 deletions src/renderer/app.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -123,6 +123,8 @@ const editorTimelineWrapper = document.getElementById('editorTimelineWrapper');
const editorTimeline = document.getElementById('editorTimeline');
const editorSectionMarkers = document.getElementById('editorSectionMarkers');
const editorScrubber = document.getElementById('editorScrubber');
const editorPlayhead = document.getElementById('editorPlayhead');
const editorPlayheadRuler = document.getElementById('editorPlayheadRuler');
const editorCameraTrack = document.getElementById('editorCameraTrack');
const editorCameraMarkers = document.getElementById('editorCameraMarkers');
const cameraTrackLabel = document.getElementById('cameraTrackLabel');
Expand Down Expand Up @@ -4683,6 +4685,7 @@ function updateScrubberPosition() {
if (!editorState || editorState.duration <= 0) return;
const pct = (editorState.currentTime / editorState.duration) * 100;
editorScrubber.style.left = pct + '%';
if (editorPlayhead) editorPlayhead.style.left = pct + '%';
if (editorState.playing) scrollTimelineToPlayhead();
}

Expand Down Expand Up @@ -5062,6 +5065,24 @@ function seekFromTimeline(e) {
editorSeek(pct * editorState.duration);
}

// Playhead ruler above the tracks: dedicated drag-to-scrub surface that cannot
// accidentally hit section clips or trim handles.
if (editorPlayheadRuler) {
editorPlayheadRuler.addEventListener('mousedown', (e) => {
if (!editorState || editorState.rendering) return;
e.preventDefault();
e.stopPropagation();
seekFromTimeline(e);
const onMove = (e2) => seekFromTimeline(e2);
const onUp = () => {
window.removeEventListener('mousemove', onMove);
window.removeEventListener('mouseup', onUp);
};
window.addEventListener('mousemove', onMove);
window.addEventListener('mouseup', onUp);
});
}

const SECTION_DRAG_THRESHOLD = 5;

function getDragSelectedIds() {
Expand Down
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