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touch: we need to get all the dispatch targets on the start of the inertia event

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This commit is contained in:
isidor 2017-11-22 12:32:00 +01:00
parent aed06bdf64
commit 39a48b482c
1 changed files with 8 additions and 6 deletions
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14
src/vs/base/browser/touch.ts
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@ -186,7 +186,9 @@ export class Gesture implements IDisposable {
let deltaX = finalX - data.rollingPageX[0];
let deltaY = finalY - data.rollingPageY[0];
this.inertia(data.initialTarget, timestamp, // time now
// We need to get all the dispatch targets on the start of the inertia event
const dispatchTo = this.targets.filter(t => data.initialTarget instanceof Node && t.contains(data.initialTarget));
this.inertia(dispatchTo, timestamp, // time now
Math.abs(deltaX) / deltaT, // speed
deltaX > 0 ? 1 : -1, // x direction
finalX, // x now
@ -201,7 +203,7 @@ export class Gesture implements IDisposable {
}
}
private newGestureEvent(type: string, intialTarget: EventTarget): GestureEvent {
private newGestureEvent(type: string, intialTarget?: EventTarget): GestureEvent {
let event = <GestureEvent>(<any>document.createEvent('CustomEvent'));
event.initEvent(type, false, true);
event.initialTarget = intialTarget;
@ -216,7 +218,7 @@ export class Gesture implements IDisposable {
});
}
private inertia(initialTarget: EventTarget, t1: number, vX: number, dirX: number, x: number, vY: number, dirY: number, y: number): void {
private inertia(dispatchTo: EventTarget[], t1: number, vX: number, dirX: number, x: number, vY: number, dirY: number, y: number): void {
this.handle = DomUtils.scheduleAtNextAnimationFrame(() => {
let now = Date.now();
@ -239,13 +241,13 @@ export class Gesture implements IDisposable {
}
// dispatch translation event
let evt = this.newGestureEvent(EventType.Change, initialTarget);
let evt = this.newGestureEvent(EventType.Change);
evt.translationX = delta_pos_x;
evt.translationY = delta_pos_y;
this.dispatchEvent(evt);
dispatchTo.forEach(d => d.dispatchEvent(evt));
if (!stopped) {
this.inertia(initialTarget, now, vX, dirX, x + delta_pos_x, vY, dirY, y + delta_pos_y);
this.inertia(dispatchTo, now, vX, dirX, x + delta_pos_x, vY, dirY, y + delta_pos_y);
}
});
}