@angular/cdk
Version:
Angular Material Component Development Kit
94 lines • 13.7 kB
JavaScript
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import { DOCUMENT } from '@angular/common';
import { Inject, Injectable } from '@angular/core';
import { Platform } from '@angular/cdk/platform';
import { BaseOverlayDispatcher } from './base-overlay-dispatcher';
import * as i0 from "@angular/core";
import * as i1 from "@angular/common";
import * as i2 from "@angular/cdk/platform";
/**
* Service for dispatching mouse click events that land on the body to appropriate overlay ref,
* if any. It maintains a list of attached overlays to determine best suited overlay based
* on event target and order of overlay opens.
*/
export class OverlayOutsideClickDispatcher extends BaseOverlayDispatcher {
constructor(document, _platform) {
super(document);
this._platform = _platform;
this._cursorStyleIsSet = false;
/** Click event listener that will be attached to the body propagate phase. */
this._clickListener = (event) => {
// Get the target through the `composedPath` if possible to account for shadow DOM.
const target = event.composedPath ? event.composedPath()[0] : event.target;
const overlays = this._attachedOverlays;
// Dispatch the mouse event to the top overlay which has subscribers to its mouse events.
// We want to target all overlays for which the click could be considered as outside click.
// As soon as we reach an overlay for which the click is not outside click we break off
// the loop.
for (let i = overlays.length - 1; i > -1; i--) {
const overlayRef = overlays[i];
if (overlayRef._outsidePointerEvents.observers.length < 1) {
continue;
}
const config = overlayRef.getConfig();
const excludeElements = [...config.excludeFromOutsideClick, overlayRef.overlayElement];
const isInsideClick = excludeElements.some(e => e.contains(target));
// If it is inside click just break - we should do nothing
// If it is outside click dispatch the mouse event, and proceed with the next overlay
if (isInsideClick) {
break;
}
overlayRef._outsidePointerEvents.next(event);
}
};
}
/** Add a new overlay to the list of attached overlay refs. */
add(overlayRef) {
super.add(overlayRef);
// tslint:disable: max-line-length
// Safari on iOS does not generate click events for non-interactive
// elements. However, we want to receive a click for any element outside
// the overlay. We can force a "clickable" state by setting
// `cursor: pointer` on the document body.
// See https://developer.mozilla.org/en-US/docs/Web/API/Element/click_event#Safari_Mobile
// and https://developer.apple.com/library/archive/documentation/AppleApplications/Reference/SafariWebContent/HandlingEvents/HandlingEvents.html
// tslint:enable: max-line-length
if (!this._isAttached) {
this._document.body.addEventListener('click', this._clickListener, true);
// click event is not fired on iOS. To make element "clickable" we are
// setting the cursor to pointer
if (this._platform.IOS && !this._cursorStyleIsSet) {
this._cursorOriginalValue = this._document.body.style.cursor;
this._document.body.style.cursor = 'pointer';
this._cursorStyleIsSet = true;
}
this._isAttached = true;
}
}
/** Detaches the global keyboard event listener. */
detach() {
if (this._isAttached) {
this._document.body.removeEventListener('click', this._clickListener, true);
if (this._platform.IOS && this._cursorStyleIsSet) {
this._document.body.style.cursor = this._cursorOriginalValue;
this._cursorStyleIsSet = false;
}
this._isAttached = false;
}
}
}
OverlayOutsideClickDispatcher.ɵprov = i0.ɵɵdefineInjectable({ factory: function OverlayOutsideClickDispatcher_Factory() { return new OverlayOutsideClickDispatcher(i0.ɵɵinject(i1.DOCUMENT), i0.ɵɵinject(i2.Platform)); }, token: OverlayOutsideClickDispatcher, providedIn: "root" });
OverlayOutsideClickDispatcher.decorators = [
{ type: Injectable, args: [{ providedIn: 'root' },] }
];
OverlayOutsideClickDispatcher.ctorParameters = () => [
{ type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] },
{ type: Platform }
];
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It maintains a list of attached overlays to determine best suited overlay based\n * on event target and order of overlay opens.\n */\n@Injectable({providedIn: 'root'})\nexport class OverlayOutsideClickDispatcher extends BaseOverlayDispatcher {\n  private _cursorOriginalValue: string;\n  private _cursorStyleIsSet = false;\n\n  constructor(@Inject(DOCUMENT) document: any, private _platform: Platform) {\n    super(document);\n  }\n\n  /** Add a new overlay to the list of attached overlay refs. */\n  add(overlayRef: OverlayReference): void {\n    super.add(overlayRef);\n\n    // tslint:disable: max-line-length\n    // Safari on iOS does not generate click events for non-interactive\n    // elements. However, we want to receive a click for any element outside\n    // the overlay. We can force a \"clickable\" state by setting\n    // `cursor: pointer` on the document body.\n    // See https://developer.mozilla.org/en-US/docs/Web/API/Element/click_event#Safari_Mobile\n    // and https://developer.apple.com/library/archive/documentation/AppleApplications/Reference/SafariWebContent/HandlingEvents/HandlingEvents.html\n    // tslint:enable: max-line-length\n    if (!this._isAttached) {\n      this._document.body.addEventListener('click', this._clickListener, true);\n\n      // click event is not fired on iOS. To make element \"clickable\" we are\n      // setting the cursor to pointer\n      if (this._platform.IOS && !this._cursorStyleIsSet) {\n        this._cursorOriginalValue = this._document.body.style.cursor;\n        this._document.body.style.cursor = 'pointer';\n        this._cursorStyleIsSet = true;\n      }\n\n      this._isAttached = true;\n    }\n  }\n\n  /** Detaches the global keyboard event listener. */\n  protected detach() {\n    if (this._isAttached) {\n      this._document.body.removeEventListener('click', this._clickListener, true);\n      if (this._platform.IOS && this._cursorStyleIsSet) {\n        this._document.body.style.cursor = this._cursorOriginalValue;\n        this._cursorStyleIsSet = false;\n      }\n      this._isAttached = false;\n    }\n  }\n\n  /** Click event listener that will be attached to the body propagate phase. */\n  private _clickListener = (event: MouseEvent) => {\n    // Get the target through the `composedPath` if possible to account for shadow DOM.\n    const target = event.composedPath ? event.composedPath()[0] : event.target;\n    const overlays = this._attachedOverlays;\n\n    // Dispatch the mouse event to the top overlay which has subscribers to its mouse events.\n    // We want to target all overlays for which the click could be considered as outside click.\n    // As soon as we reach an overlay for which the click is not outside click we break off\n    // the loop.\n    for (let i = overlays.length - 1; i > -1; i--) {\n      const overlayRef = overlays[i];\n      if (overlayRef._outsidePointerEvents.observers.length < 1) {\n        continue;\n      }\n\n      const config = overlayRef.getConfig();\n      const excludeElements = [...config.excludeFromOutsideClick!, overlayRef.overlayElement];\n      const isInsideClick: boolean = excludeElements.some(e => e.contains(target));\n\n      // If it is inside click just break - we should do nothing\n      // If it is outside click dispatch the mouse event, and proceed with the next overlay\n      if (isInsideClick) {\n        break;\n      }\n\n      overlayRef._outsidePointerEvents.next(event);\n    }\n  }\n}\n"]}