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fix: commit dragged strength through options.setValue at drag end

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During drag, handleStrengthDrag is called with updateWidget=false, which
mutates widgetValue in-place via parseLoraValue's direct array reference,
bypassing widget.value setter and options.setValue entirely.

endDrag only called renderFunction for a DOM refresh, but never flushed the
mutation through options.setValue. Any external observer that wraps
options.setValue (e.g. ComfyUI Mirror Panel's bidirectional sync) would
therefore never see the dragged value and would treat the widget as unchanged.

Fix: replace the explicit renderFunction call with widget.value = widget.value.
This flushes the in-place mutation through the setter (options.setValue), which
re-renders the DOM internally AND notifies all setValue wrappers. Also fire
widget.callback for parity with the updateWidget=true path in handleStrengthDrag.

Applies the same fix to initHeaderDrag (proportional all-LoRA header drag).
This commit is contained in:
hein
2026-05-04 22:40:30 +08:00
parent 79dd9a1b29
commit 454210a47c
1 changed files with 14 additions and 6 deletions
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20
web/comfyui/loras_widget_events.js
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@@ -232,9 +232,13 @@ export function initDrag(
onDragEnd();
}
// Now do the re-render after drag is complete
if (renderFunction) {
renderFunction(widget.value, widget);
// Commit final value through options.setValue so external observers are notified.
// During drag, handleStrengthDrag mutates widgetValue in-place (updateWidget=false),
// bypassing widget.value setter and options.setValue entirely. This assignment
// flushes the in-place mutation through the setter so any setValue wrappers fire.
widget.value = widget.value;
if (typeof widget.callback === 'function') {
widget.callback(widget.value);
}
}
};
@@ -349,11 +353,15 @@ export function initHeaderDrag(headerEl, widget, renderFunction) {
document.body.classList.remove('lm-lora-strength-dragging');
// Only re-render if we actually dragged
if (wasDragging && renderFunction) {
renderFunction(widget.value, widget);
if (wasDragging) {
// Commit final value through options.setValue so external observers are notified.
widget.value = widget.value;
if (typeof widget.callback === 'function') {
widget.callback(widget.value);
}
}
};
// Handle pointer up to end dragging
headerEl.addEventListener('pointerup', endDrag);