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RN] Add public API to ReactRootView to control if JS touch events are dispatched

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Summary: This diff adds flag to `ReactRootView` to control if the touch event is to be dispatched to the JS side. This is needed for subclass of `ReactRootView` to control if the dispatch is needed.

Reviewed By: javache

Differential Revision: D35033684

fbshipit-source-id: febab6988cc3e4259e726d03d797dd0ffc978d24
This commit is contained in:
Xin Chen
2022-03-23 22:21:29 -07:00
committed by Facebook GitHub Bot
parent 12ad1fffe8
commit 0a517ae438
1 changed files with 12 additions and 2 deletions
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ReactAndroid/src/main/java/com/facebook/react/ReactRootView.java
+12 -2
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@@ -234,15 +234,25 @@ public class ReactRootView extends FrameLayout implements RootView, ReactRoot {
return true;
}
// By default the JS touch events are dispatched at the root view. This can be overridden in
// subclasses as needed.
public boolean shouldDispatchJSTouchEvent(MotionEvent ev) {
return true;
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
dispatchJSTouchEvent(ev);
if (shouldDispatchJSTouchEvent(ev)) {
dispatchJSTouchEvent(ev);
}
return super.onInterceptTouchEvent(ev);
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
dispatchJSTouchEvent(ev);
if (shouldDispatchJSTouchEvent(ev)) {
dispatchJSTouchEvent(ev);
}
super.onTouchEvent(ev);
// In case when there is no children interested in handling touch event, we return true from
// the root view in order to receive subsequent events related to that gesture