Merge pull request #6519 from TrevorDev/customPointerDragStartRelease

disable pointer from starting/release drag

dist/preview release/what's new.md

@@ -21,6 +21,7 @@
 - Method to check if device orientation is available ([TrevorDev](https://github.com/TrevorDev))
 - Added support for sound sprites [Doc](https://doc.babylonjs.com/how_to/playing_sounds_and_music#playing-a-sound-sprite) ([Deltakosh](https://github.com/deltakosh/))
 - Display Oculus Quest controller when using a Quest in WebVR ([TrevorDev](https://github.com/TrevorDev))
+- Added startAndReleaseDragOnPointerEvents property to pointerDragBehavior which can be set to false when using custom drag triggering ([TrevorDev](https://github.com/TrevorDev))
 
 ### Engine
 - Morph targets now can morph UV channel as well ([Deltakosh](https://github.com/deltakosh/))

src/Behaviors/Meshes/pointerDragBehavior.ts

@@ -82,6 +82,11 @@ export class PointerDragBehavior implements Behavior<AbstractMesh> {
      *  If the drag behavior will react to drag events (Default: true)
      */
     public enabled = true;
+
+    /**
+     * If pointer events should start and release the drag (Default: true)
+     */
+    public startAndReleaseDragOnPointerEvents = true;
     /**
      * If camera controls should be detached during the drag
      */
@@ -171,11 +176,11 @@ export class PointerDragBehavior implements Behavior<AbstractMesh> {
 
             if (pointerInfo.type == PointerEventTypes.POINTERDOWN) {
 
-                if (!this.dragging && pointerInfo.pickInfo && pointerInfo.pickInfo.hit && pointerInfo.pickInfo.pickedMesh && pointerInfo.pickInfo.pickedPoint && pointerInfo.pickInfo.ray && pickPredicate(pointerInfo.pickInfo.pickedMesh)) {
+                if (this.startAndReleaseDragOnPointerEvents && !this.dragging && pointerInfo.pickInfo && pointerInfo.pickInfo.hit && pointerInfo.pickInfo.pickedMesh && pointerInfo.pickInfo.pickedPoint && pointerInfo.pickInfo.ray && pickPredicate(pointerInfo.pickInfo.pickedMesh)) {
                     this._startDrag((<PointerEvent>pointerInfo.event).pointerId, pointerInfo.pickInfo.ray, pointerInfo.pickInfo.pickedPoint);
                 }
             } else if (pointerInfo.type == PointerEventTypes.POINTERUP) {
-                if (this.currentDraggingPointerID == (<PointerEvent>pointerInfo.event).pointerId) {
+                if (this.startAndReleaseDragOnPointerEvents && this.currentDraggingPointerID == (<PointerEvent>pointerInfo.event).pointerId) {
                     this.releaseDrag();
                 }
             } else if (pointerInfo.type == PointerEventTypes.POINTERMOVE) {