Files
react-native/ReactAndroid
Luna Wei 64ae12e553 PointerEvents: Refactor JSPointerDispatcher to share logic for UP/DOWN for secondary pointers
Summary:
Changelog: [Internal] -  Refactor JSPointerDispatcher to group secondary actions (pointer_up, pointer_down) to use same logic and emit non-direct events

This diff re-arranges some code and re-uses some logic for different MotionEvent types.

Specifically, before our code for handling a motionEvent looked like
```
func onMotionEvent(event) {
    if (event is HOVER_MOVE) {
        handleHoverEvent(event)
    }
    if (event is ACTION_DOWN) {
       // logic for dispatching down, enter, over
    }
    if (event is ACTION_POINTER_DOWN) { // this represents any secondary pointer going down
       // logic for dispatching down
    }
    if (event is ACTION_MOVE) {
       // logic for dispatching touch move
    }
    if (event is ACTION_UP) {
       // logic for dispatching up, out, leave
    }
    if (event is ACTION_POINTER_UP) { // this represents any secondary pointer going up
       // logic for dispatching up
    }
   ....
}
```

now, we've refactored it to be like:
```
func onMotionEvent(event) {
    if (event is HOVER_MOVE) { // Still keep this as separate because it does some special things. Will refactor in follow-up diff
        handleHoverEvent(event)
    }

    switch() {
         case ACTION_DOWN or ACTION_POINTER_DOWN:
             // do same logic
         break;
         case ACTION_UP or ACTION_POINTER_UP:
             // do same logic
         break;
         case ACTION_MOVE:
             // do same logic, we will want to converge this logic with HOVER_MOVE, todo in a follow-up
         break;
         ...
    }
   ....
}
```
This refactor adds the functionality of `enter, over, out, leave` to secondary pointer events in which they weren't fired before.

Reviewed By: vincentriemer

Differential Revision: D39142820

fbshipit-source-id: 8b89db6dc22f24583f8c14dbb8392d4dc8ff6e4d
2022-09-01 13:11:44 -07:00
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