refactor: ♻️ add options for preventDefault in event handlers

packages/x6/src/graph/options.ts

@@ -132,6 +132,10 @@ export namespace Options {
      */
     preventDefaultContextMenu: boolean
 
+    preventDefaultDblClick: boolean
+
+    preventDefaultMouseDown: boolean
+
     /**
      * Prevents default action when an empty graph area is clicked.
      * Setting the option to `false` will make the graph pannable
@@ -753,6 +757,8 @@ export namespace Options {
     moveThreshold: 0,
     clickThreshold: 0,
     magnetThreshold: 0,
+    preventDefaultDblClick: true,
+    preventDefaultMouseDown: false,
     preventDefaultContextMenu: true,
     preventDefaultBlankAction: true,
     interacting: {

packages/x6/src/graph/view.ts

@@ -93,7 +93,10 @@ export class GraphView extends View {
   }
 
   protected onDblClick(evt: JQuery.DoubleClickEvent) {
-    evt.preventDefault()
+    if (this.options.preventDefaultDblClick) {
+      evt.preventDefault()
+    }
+
     const e = this.normalizeEvent(evt)
     const view = this.findView(e.target)
 
@@ -188,10 +191,13 @@ export class GraphView extends View {
       return
     }
 
+    if (this.options.preventDefaultMouseDown) {
+      e.preventDefault()
+    }
+
     const localPoint = this.graph.snapToGrid(e.clientX, e.clientY)
 
     if (view) {
-      e.preventDefault()
       view.onMouseDown(e, localPoint.x, localPoint.y)
     } else {
       if (this.options.preventDefaultBlankAction) {