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Remove support for MSGesture

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Alexandru Dima 2021-02-19 17:11:12 +01:00
parent 3c0970f6fc
commit 086ccb15b3
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GPG key ID: 6E58D7B045760DA0
1 changed files with 1 additions and 98 deletions
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99
src/vs/editor/browser/controller/pointerHandler.ts
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@ -6,7 +6,7 @@
import * as dom from 'vs/base/browser/dom';
import * as platform from 'vs/base/common/platform';
import { EventType, Gesture, GestureEvent } from 'vs/base/browser/touch';
import { IDisposable, Disposable } from 'vs/base/common/lifecycle';
import { Disposable } from 'vs/base/common/lifecycle';
import { IPointerHandlerHelper, MouseHandler, createMouseMoveEventMerger } from 'vs/editor/browser/controller/mouseHandler';
import { IMouseTarget } from 'vs/editor/browser/editorBrowser';
import { EditorMouseEvent, EditorPointerEventFactory } from 'vs/editor/browser/editorDom';
@ -15,101 +15,6 @@ import { ViewContext } from 'vs/editor/common/view/viewContext';
import { BrowserFeatures } from 'vs/base/browser/canIUse';
import { TextAreaSyntethicEvents } from 'vs/editor/browser/controller/textAreaInput';
interface IThrottledGestureEvent {
translationX: number;
translationY: number;
}
function gestureChangeEventMerger(lastEvent: IThrottledGestureEvent | null, currentEvent: MSGestureEvent): IThrottledGestureEvent {
const r = {
translationY: currentEvent.translationY,
translationX: currentEvent.translationX
};
if (lastEvent) {
r.translationY += lastEvent.translationY;
r.translationX += lastEvent.translationX;
}
return r;
}
/**
* Basically Edge but should be modified to handle any pointerEnabled, even without support of MSGesture
*/
class StandardPointerHandler extends MouseHandler implements IDisposable {
private _lastPointerType: string;
private _installGestureHandlerTimeout: number;
constructor(context: ViewContext, viewController: ViewController, viewHelper: IPointerHandlerHelper) {
super(context, viewController, viewHelper);
this.viewHelper.linesContentDomNode.style.touchAction = 'none';
// TODO@Alex -> this expects that the view is added in 100 ms, might not be the case
// This handler should be added when the dom node is in the dom tree
this._installGestureHandlerTimeout = window.setTimeout(() => {
this._installGestureHandlerTimeout = -1;
// TODO@Alex: replace the usage of MSGesture here with something that works across all browsers
if (window.MSGesture) {
const touchGesture = new MSGesture();
const penGesture = new MSGesture();
touchGesture.target = this.viewHelper.linesContentDomNode;
penGesture.target = this.viewHelper.linesContentDomNode;
this.viewHelper.linesContentDomNode.addEventListener('pointerdown', (e: PointerEvent) => {
const pointerType = <any>e.pointerType;
if (pointerType === 'mouse') {
this._lastPointerType = 'mouse';
return;
} else if (pointerType === 'touch') {
this._lastPointerType = 'touch';
touchGesture.addPointer(e.pointerId);
} else {
this._lastPointerType = 'pen';
penGesture.addPointer(e.pointerId);
}
});
this._register(dom.addDisposableThrottledListener<IThrottledGestureEvent, MSGestureEvent>(this.viewHelper.linesContentDomNode, 'MSGestureChange', (e) => this._onGestureChange(e), gestureChangeEventMerger));
this._register(dom.addDisposableListener(this.viewHelper.linesContentDomNode, 'MSGestureTap', (e) => this._onCaptureGestureTap(e), true));
}
}, 100);
this._lastPointerType = 'mouse';
}
public _onMouseDown(e: EditorMouseEvent): void {
if (this._lastPointerType === 'mouse') {
super._onMouseDown(e);
}
}
private _onCaptureGestureTap(rawEvent: MSGestureEvent): void {
const e = new EditorMouseEvent(<MouseEvent><any>rawEvent, this.viewHelper.viewDomNode);
const t = this._createMouseTarget(e, false);
if (t.position) {
this.viewController.moveTo(t.position);
}
// IE does not want to focus when coming in from the browser's address bar
if ((<any>e.browserEvent).fromElement) {
e.preventDefault();
this.viewHelper.focusTextArea();
} else {
// TODO@Alex -> cancel this is focus is lost
setTimeout(() => {
this.viewHelper.focusTextArea();
});
}
}
private _onGestureChange(e: IThrottledGestureEvent): void {
this._context.model.deltaScrollNow(-e.translationX, -e.translationY);
}
public dispose(): void {
window.clearTimeout(this._installGestureHandlerTimeout);
super.dispose();
}
}
/**
* Currently only tested on iOS 13/ iPadOS.
*/
@ -234,8 +139,6 @@ export class PointerHandler extends Disposable {
this.handler = this._register(new PointerEventHandler(context, viewController, viewHelper));
} else if (window.TouchEvent) {
this.handler = this._register(new TouchHandler(context, viewController, viewHelper));
} else if (window.navigator.pointerEnabled || window.PointerEvent) {
this.handler = this._register(new StandardPointerHandler(context, viewController, viewHelper));
} else {
this.handler = this._register(new MouseHandler(context, viewController, viewHelper));
}