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Multi-pointer case - covered

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This commit is contained in:
vakrilov
2016-05-16 13:52:35 +03:00
parent 8d5ef9b15b
commit c22f7ce478
1 changed files with 21 additions and 11 deletions
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32
ui/gestures/gestures.android.ts
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@ -468,7 +468,7 @@ class CustomPanGestureDetector {
}
private trackStart(currentEvent: android.view.MotionEvent) {
let inital = this.getMotionEventCenter(this.lastEventCache ? this.lastEventCache : currentEvent);
let inital = this.getEventCoordinates(this.lastEventCache ? this.lastEventCache : currentEvent);
this.initialX = inital.x;
this.initialY = inital.y;
this.isTracking = true;
@ -478,7 +478,7 @@ class CustomPanGestureDetector {
}
private trackChange(currentEvent: android.view.MotionEvent) {
let current = this.getMotionEventCenter(currentEvent);
let current = this.getEventCoordinates(currentEvent);
this.deltaX = current.x - this.initialX;
this.deltaY = current.y - this.initialY;
@ -486,18 +486,28 @@ class CustomPanGestureDetector {
_executeCallback(this.observer, args);
}
private getMotionEventCenter(event: android.view.MotionEvent): { x: number, y: number } {
let count = event.getPointerCount();
let res = { x: 0, y: 0 };
for (let i = 0; i < count; i++) {
res.x += event.getRawX();
res.y += event.getRawY();
private getEventCoordinates(event: android.view.MotionEvent): { x: number, y: number } {
var count = event.getPointerCount();
if (count === 1) {
return {
x: event.getRawX() / this.density,
y: event.getRawY() / this.density
};
}
else {
var res = { x: 0, y: 0 };
var offX = event.getRawX() - event.getX();
var offY = event.getRawY() - event.getY();
res.x /= (count * this.density);
res.y /= (count * this.density);
for (var i = 0; i < count; i++) {
res.x += event.getX(i) + offX;
res.y += event.getY(i) + offY;
}
return res;
res.x /= (count * this.density);
res.y /= (count * this.density);
return res;
}
}
}