[BugFix] Trigger IWidget.callback on widget drag (#514)

src/LGraphCanvas.ts

@@ -2568,6 +2568,7 @@ export class LGraphCanvas implements ConnectionColorContext {
       pointer.onDrag = eMove => widgetInstance.onDrag({
         e: eMove,
         node,
+        canvas: this,
       })
     } else {
       if (widget.mouse) {

src/widgets/BaseWidget.ts

@@ -96,6 +96,7 @@ export abstract class BaseWidget implements IBaseWidget {
   onDrag(options: {
     e: CanvasMouseEvent
     node: LGraphNode
+    canvas: LGraphCanvas
   }): void {}
 
   /**

src/widgets/NumberWidget.ts

@@ -146,8 +146,9 @@ export class NumberWidget extends BaseWidget implements INumericWidget {
   override onDrag(options: {
     e: CanvasMouseEvent
     node: LGraphNode
+    canvas: LGraphCanvas
   }) {
-    const { e, node } = options
+    const { e, node, canvas } = options
     const width = this.width || node.width
     const x = e.canvasX - node.pos[0]
     const delta = x < 40
@@ -168,9 +169,7 @@ export class NumberWidget extends BaseWidget implements INumericWidget {
       newValue = this.options.max
     }
     if (newValue !== this.value) {
-      this.value = newValue
-      return true
+      this.setValue(newValue, { e, node, canvas })
     }
-    return false
   }
 }

src/widgets/SliderWidget.ts

@@ -119,6 +119,7 @@ export class SliderWidget extends BaseWidget implements ISliderWidget {
   override onDrag(options: {
     e: CanvasMouseEvent
     node: LGraphNode
+    canvas: LGraphCanvas
   }) {
     if (this.options.read_only) return false
 
@@ -131,9 +132,7 @@ export class SliderWidget extends BaseWidget implements ISliderWidget {
     const newValue = this.options.min + (this.options.max - this.options.min) * slideFactor
 
     if (newValue !== this.value) {
-      this.value = newValue
-      return true
+      this.setValue(newValue, options)
     }
-    return false
   }
 }