fix(canvas): filter out touch events by identifier

herefishyfish · herefishyfish · commit 53922dcd67d4 · 2025-08-27T14:29:48.000+08:00
diff --git a/packages/canvas/Canvas/common.ts b/packages/canvas/Canvas/common.ts
@@ -695,7 +695,7 @@ export abstract class CanvasBase extends View implements ICanvasBase {
 			}
 
 			if (hasTouchCallbacks && !preventDefault) {
-				const touches = TouchList.fromList(this._touches);
+				const touches = TouchList.fromList(this._touches.filter((t) => t.identifier !== ptrId));
 
 				const changedTouches = TouchList.fromList([
 					new Touch({

Original file line number	Diff line number	Diff line change
`@@ -695,7 +695,7 @@ export abstract class CanvasBase extends View implements ICanvasBase {`
`695`	`695`	`}`
`696`	`696`
`697`	`697`	`if (hasTouchCallbacks && !preventDefault) {`
`698`		`- const touches = TouchList.fromList(this._touches);`
	`698`	`+ const touches = TouchList.fromList(this._touches.filter((t) => t.identifier !== ptrId));`
`699`	`699`
`700`	`700`	`const changedTouches = TouchList.fromList([`
`701`	`701`	`new Touch({`