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pointerHandler.ts
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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
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 { Disposable } from 'vs/base/common/lifecycle';
import { IPointerHandlerHelper, MouseHandler } from 'vs/editor/browser/controller/mouseHandler';
import { IMouseTarget, MouseTargetType } from 'vs/editor/browser/editorBrowser';
import { EditorMouseEvent, EditorPointerEventFactory } from 'vs/editor/browser/editorDom';
import { ViewController } from 'vs/editor/browser/view/viewController';
import { ViewContext } from 'vs/editor/common/viewModel/viewContext';
import { BrowserFeatures } from 'vs/base/browser/canIUse';
import { TextAreaSyntethicEvents } from 'vs/editor/browser/controller/textAreaInput';
import { NavigationCommandRevealType } from 'vs/editor/browser/coreCommands';
/**
* Currently only tested on iOS 13/ iPadOS.
*/
export class PointerEventHandler extends MouseHandler {
private _lastPointerType: string;
constructor(context: ViewContext, viewController: ViewController, viewHelper: IPointerHandlerHelper) {
super(context, viewController, viewHelper);
this._register(Gesture.addTarget(this.viewHelper.linesContentDomNode));
this._register(dom.addDisposableListener(this.viewHelper.linesContentDomNode, EventType.Tap, (e) => this.onTap(e)));
this._register(dom.addDisposableListener(this.viewHelper.linesContentDomNode, EventType.Change, (e) => this.onChange(e)));
this._register(dom.addDisposableListener(this.viewHelper.linesContentDomNode, EventType.Contextmenu, (e: MouseEvent) => this._onContextMenu(new EditorMouseEvent(e, false, this.viewHelper.viewDomNode), false)));
this._lastPointerType = 'mouse';
this._register(dom.addDisposableListener(this.viewHelper.linesContentDomNode, 'pointerdown', (e: any) => {
const pointerType = <any>e.pointerType;
if (pointerType === 'mouse') {
this._lastPointerType = 'mouse';
return;
} else if (pointerType === 'touch') {
this._lastPointerType = 'touch';
} else {
this._lastPointerType = 'pen';
}
}));
// PonterEvents
const pointerEvents = new EditorPointerEventFactory(this.viewHelper.viewDomNode);
this._register(pointerEvents.onPointerMove(this.viewHelper.viewDomNode, (e) => this._onMouseMove(e)));
this._register(pointerEvents.onPointerUp(this.viewHelper.viewDomNode, (e) => this._onMouseUp(e)));
this._register(pointerEvents.onPointerLeave(this.viewHelper.viewDomNode, (e) => this._onMouseLeave(e)));
this._register(pointerEvents.onPointerDown(this.viewHelper.viewDomNode, (e, pointerId) => this._onMouseDown(e, pointerId)));
}
private onTap(event: GestureEvent): void {
if (!event.initialTarget || !this.viewHelper.linesContentDomNode.contains(<any>event.initialTarget)) {
return;
}
event.preventDefault();
this.viewHelper.focusTextArea();
const target = this._createMouseTarget(new EditorMouseEvent(event, false, this.viewHelper.viewDomNode), false);
if (target.position) {
// this.viewController.moveTo(target.position);
this.viewController.dispatchMouse({
position: target.position,
mouseColumn: target.position.column,
startedOnLineNumbers: false,
revealType: NavigationCommandRevealType.Minimal,
mouseDownCount: event.tapCount,
inSelectionMode: false,
altKey: false,
ctrlKey: false,
metaKey: false,
shiftKey: false,
leftButton: false,
middleButton: false,
onInjectedText: target.type === MouseTargetType.CONTENT_TEXT && target.detail.injectedText !== null
});
}
}
private onChange(e: GestureEvent): void {
if (this._lastPointerType === 'touch') {
this._context.viewModel.viewLayout.deltaScrollNow(-e.translationX, -e.translationY);
}
}
protected override _onMouseDown(e: EditorMouseEvent, pointerId: number): void {
if ((e.browserEvent as any).pointerType === 'touch') {
return;
}
super._onMouseDown(e, pointerId);
}
}
class TouchHandler extends MouseHandler {
constructor(context: ViewContext, viewController: ViewController, viewHelper: IPointerHandlerHelper) {
super(context, viewController, viewHelper);
this._register(Gesture.addTarget(this.viewHelper.linesContentDomNode));
this._register(dom.addDisposableListener(this.viewHelper.linesContentDomNode, EventType.Tap, (e) => this.onTap(e)));
this._register(dom.addDisposableListener(this.viewHelper.linesContentDomNode, EventType.Change, (e) => this.onChange(e)));
this._register(dom.addDisposableListener(this.viewHelper.linesContentDomNode, EventType.Contextmenu, (e: MouseEvent) => this._onContextMenu(new EditorMouseEvent(e, false, this.viewHelper.viewDomNode), false)));
}
private onTap(event: GestureEvent): void {
event.preventDefault();
this.viewHelper.focusTextArea();
const target = this._createMouseTarget(new EditorMouseEvent(event, false, this.viewHelper.viewDomNode), false);
if (target.position) {
// Send the tap event also to the <textarea> (for input purposes)
const event = document.createEvent('CustomEvent');
event.initEvent(TextAreaSyntethicEvents.Tap, false, true);
this.viewHelper.dispatchTextAreaEvent(event);
this.viewController.moveTo(target.position, NavigationCommandRevealType.Minimal);
}
}
private onChange(e: GestureEvent): void {
this._context.viewModel.viewLayout.deltaScrollNow(-e.translationX, -e.translationY);
}
}
export class PointerHandler extends Disposable {
private readonly handler: MouseHandler;
constructor(context: ViewContext, viewController: ViewController, viewHelper: IPointerHandlerHelper) {
super();
if ((platform.isIOS && BrowserFeatures.pointerEvents)) {
this.handler = this._register(new PointerEventHandler(context, viewController, viewHelper));
} else if (window.TouchEvent) {
this.handler = this._register(new TouchHandler(context, viewController, viewHelper));
} else {
this.handler = this._register(new MouseHandler(context, viewController, viewHelper));
}
}
public getTargetAtClientPoint(clientX: number, clientY: number): IMouseTarget | null {
return this.handler.getTargetAtClientPoint(clientX, clientY);
}
}