@angular/cdk
Version:
Angular Material Component Development Kit
169 lines • 22.1 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 { Platform } from '@angular/cdk/platform';
import { Injectable, NgZone, Optional, Inject } from '@angular/core';
import { fromEvent, of as observableOf, Subject, Observable } from 'rxjs';
import { auditTime, filter } from 'rxjs/operators';
import { DOCUMENT } from '@angular/common';
import * as i0 from "@angular/core";
import * as i1 from "@angular/cdk/platform";
import * as i2 from "@angular/common";
/** Time in ms to throttle the scrolling events by default. */
export const DEFAULT_SCROLL_TIME = 20;
/**
* Service contained all registered Scrollable references and emits an event when any one of the
* Scrollable references emit a scrolled event.
*/
export class ScrollDispatcher {
constructor(_ngZone, _platform,
/** @breaking-change 11.0.0 make document required */
document) {
this._ngZone = _ngZone;
this._platform = _platform;
/** Subject for notifying that a registered scrollable reference element has been scrolled. */
this._scrolled = new Subject();
/** Keeps track of the global `scroll` and `resize` subscriptions. */
this._globalSubscription = null;
/** Keeps track of the amount of subscriptions to `scrolled`. Used for cleaning up afterwards. */
this._scrolledCount = 0;
/**
* Map of all the scrollable references that are registered with the service and their
* scroll event subscriptions.
*/
this.scrollContainers = new Map();
this._document = document;
}
/**
* Registers a scrollable instance with the service and listens for its scrolled events. When the
* scrollable is scrolled, the service emits the event to its scrolled observable.
* @param scrollable Scrollable instance to be registered.
*/
register(scrollable) {
if (!this.scrollContainers.has(scrollable)) {
this.scrollContainers.set(scrollable, scrollable.elementScrolled()
.subscribe(() => this._scrolled.next(scrollable)));
}
}
/**
* Deregisters a Scrollable reference and unsubscribes from its scroll event observable.
* @param scrollable Scrollable instance to be deregistered.
*/
deregister(scrollable) {
const scrollableReference = this.scrollContainers.get(scrollable);
if (scrollableReference) {
scrollableReference.unsubscribe();
this.scrollContainers.delete(scrollable);
}
}
/**
* Returns an observable that emits an event whenever any of the registered Scrollable
* references (or window, document, or body) fire a scrolled event. Can provide a time in ms
* to override the default "throttle" time.
*
* **Note:** in order to avoid hitting change detection for every scroll event,
* all of the events emitted from this stream will be run outside the Angular zone.
* If you need to update any data bindings as a result of a scroll event, you have
* to run the callback using `NgZone.run`.
*/
scrolled(auditTimeInMs = DEFAULT_SCROLL_TIME) {
if (!this._platform.isBrowser) {
return observableOf();
}
return new Observable((observer) => {
if (!this._globalSubscription) {
this._addGlobalListener();
}
// In the case of a 0ms delay, use an observable without auditTime
// since it does add a perceptible delay in processing overhead.
const subscription = auditTimeInMs > 0 ?
this._scrolled.pipe(auditTime(auditTimeInMs)).subscribe(observer) :
this._scrolled.subscribe(observer);
this._scrolledCount++;
return () => {
subscription.unsubscribe();
this._scrolledCount--;
if (!this._scrolledCount) {
this._removeGlobalListener();
}
};
});
}
ngOnDestroy() {
this._removeGlobalListener();
this.scrollContainers.forEach((_, container) => this.deregister(container));
this._scrolled.complete();
}
/**
* Returns an observable that emits whenever any of the
* scrollable ancestors of an element are scrolled.
* @param elementRef Element whose ancestors to listen for.
* @param auditTimeInMs Time to throttle the scroll events.
*/
ancestorScrolled(elementRef, auditTimeInMs) {
const ancestors = this.getAncestorScrollContainers(elementRef);
return this.scrolled(auditTimeInMs).pipe(filter(target => {
return !target || ancestors.indexOf(target) > -1;
}));
}
/** Returns all registered Scrollables that contain the provided element. */
getAncestorScrollContainers(elementRef) {
const scrollingContainers = [];
this.scrollContainers.forEach((_subscription, scrollable) => {
if (this._scrollableContainsElement(scrollable, elementRef)) {
scrollingContainers.push(scrollable);
}
});
return scrollingContainers;
}
/** Access injected document if available or fallback to global document reference */
_getDocument() {
return this._document || document;
}
/** Use defaultView of injected document if available or fallback to global window reference */
_getWindow() {
const doc = this._getDocument();
return doc.defaultView || window;
}
/** Returns true if the element is contained within the provided Scrollable. */
_scrollableContainsElement(scrollable, elementRef) {
let element = elementRef.nativeElement;
let scrollableElement = scrollable.getElementRef().nativeElement;
// Traverse through the element parents until we reach null, checking if any of the elements
// are the scrollable's element.
do {
if (element == scrollableElement) {
return true;
}
} while (element = element.parentElement);
return false;
}
/** Sets up the global scroll listeners. */
_addGlobalListener() {
this._globalSubscription = this._ngZone.runOutsideAngular(() => {
const window = this._getWindow();
return fromEvent(window.document, 'scroll').subscribe(() => this._scrolled.next());
});
}
/** Cleans up the global scroll listener. */
_removeGlobalListener() {
if (this._globalSubscription) {
this._globalSubscription.unsubscribe();
this._globalSubscription = null;
}
}
}
ScrollDispatcher.ɵprov = i0.ɵɵdefineInjectable({ factory: function ScrollDispatcher_Factory() { return new ScrollDispatcher(i0.ɵɵinject(i0.NgZone), i0.ɵɵinject(i1.Platform), i0.ɵɵinject(i2.DOCUMENT, 8)); }, token: ScrollDispatcher, providedIn: "root" });
ScrollDispatcher.decorators = [
{ type: Injectable, args: [{ providedIn: 'root' },] }
];
ScrollDispatcher.ctorParameters = () => [
{ type: NgZone },
{ type: Platform },
{ type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [DOCUMENT,] }] }
];
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"scroll-dispatcher.js","sourceRoot":"","sources":["../../../../../../src/cdk/scrolling/scroll-dispatcher.ts"],"names":[],"mappings":"AAAA;;;;;;GAMG;AAEH,OAAO,EAAC,QAAQ,EAAC,MAAM,uBAAuB,CAAC;AAC/C,OAAO,EAAa,UAAU,EAAE,MAAM,EAAa,QAAQ,EAAE,MAAM,EAAC,MAAM,eAAe,CAAC;AAC1F,OAAO,EAAC,SAAS,EAAE,EAAE,IAAI,YAAY,EAAE,OAAO,EAAgB,UAAU,EAAW,MAAM,MAAM,CAAC;AAChG,OAAO,EAAC,SAAS,EAAE,MAAM,EAAC,MAAM,gBAAgB,CAAC;AAEjD,OAAO,EAAC,QAAQ,EAAC,MAAM,iBAAiB,CAAC;;;;AAEzC,8DAA8D;AAC9D,MAAM,CAAC,MAAM,mBAAmB,GAAG,EAAE,CAAC;AAEtC;;;GAGG;AAEH,MAAM,OAAO,gBAAgB;IAI3B,YAAoB,OAAe,EACf,SAAmB;IAC3B,qDAAqD;IACvB,QAAc;QAHpC,YAAO,GAAP,OAAO,CAAQ;QACf,cAAS,GAAT,SAAS,CAAU;QAMvC,8FAA8F;QACtF,cAAS,GAAG,IAAI,OAAO,EAAsB,CAAC;QAEtD,qEAAqE;QACrE,wBAAmB,GAAwB,IAAI,CAAC;QAEhD,iGAAiG;QACzF,mBAAc,GAAG,CAAC,CAAC;QAE3B;;;WAGG;QACH,qBAAgB,GAAqC,IAAI,GAAG,EAAE,CAAC;QAhB7D,IAAI,CAAC,SAAS,GAAG,QAAQ,CAAC;IAC5B,CAAC;IAiBD;;;;OAIG;IACH,QAAQ,CAAC,UAAyB;QAChC,IAAI,CAAC,IAAI,CAAC,gBAAgB,CAAC,GAAG,CAAC,UAAU,CAAC,EAAE;YAC1C,IAAI,CAAC,gBAAgB,CAAC,GAAG,CAAC,UAAU,EAAE,UAAU,CAAC,eAAe,EAAE;iBAC7D,SAAS,CAAC,GAAG,EAAE,CAAC,IAAI,CAAC,SAAS,CAAC,IAAI,CAAC,UAAU,CAAC,CAAC,CAAC,CAAC;SACxD;IACH,CAAC;IAED;;;OAGG;IACH,UAAU,CAAC,UAAyB;QAClC,MAAM,mBAAmB,GAAG,IAAI,CAAC,gBAAgB,CAAC,GAAG,CAAC,UAAU,CAAC,CAAC;QAElE,IAAI,mBAAmB,EAAE;YACvB,mBAAmB,CAAC,WAAW,EAAE,CAAC;YAClC,IAAI,CAAC,gBAAgB,CAAC,MAAM,CAAC,UAAU,CAAC,CAAC;SAC1C;IACH,CAAC;IAED;;;;;;;;;OASG;IACH,QAAQ,CAAC,gBAAwB,mBAAmB;QAClD,IAAI,CAAC,IAAI,CAAC,SAAS,CAAC,SAAS,EAAE;YAC7B,OAAO,YAAY,EAAQ,CAAC;SAC7B;QAED,OAAO,IAAI,UAAU,CAAC,CAAC,QAAsC,EAAE,EAAE;YAC/D,IAAI,CAAC,IAAI,CAAC,mBAAmB,EAAE;gBAC7B,IAAI,CAAC,kBAAkB,EAAE,CAAC;aAC3B;YAED,kEAAkE;YAClE,gEAAgE;YAChE,MAAM,YAAY,GAAG,aAAa,GAAG,CAAC,CAAC,CAAC;gBACtC,IAAI,CAAC,SAAS,CAAC,IAAI,CAAC,SAAS,CAAC,aAAa,CAAC,CAAC,CAAC,SAAS,CAAC,QAAQ,CAAC,CAAC,CAAC;gBACnE,IAAI,CAAC,SAAS,CAAC,SAAS,CAAC,QAAQ,CAAC,CAAC;YAErC,IAAI,CAAC,cAAc,EAAE,CAAC;YAEtB,OAAO,GAAG,EAAE;gBACV,YAAY,CAAC,WAAW,EAAE,CAAC;gBAC3B,IAAI,CAAC,cAAc,EAAE,CAAC;gBAEtB,IAAI,CAAC,IAAI,CAAC,cAAc,EAAE;oBACxB,IAAI,CAAC,qBAAqB,EAAE,CAAC;iBAC9B;YACH,CAAC,CAAC;QACJ,CAAC,CAAC,CAAC;IACL,CAAC;IAED,WAAW;QACT,IAAI,CAAC,qBAAqB,EAAE,CAAC;QAC7B,IAAI,CAAC,gBAAgB,CAAC,OAAO,CAAC,CAAC,CAAC,EAAE,SAAS,EAAE,EAAE,CAAC,IAAI,CAAC,UAAU,CAAC,SAAS,CAAC,CAAC,CAAC;QAC5E,IAAI,CAAC,SAAS,CAAC,QAAQ,EAAE,CAAC;IAC5B,CAAC;IAED;;;;;OAKG;IACH,gBAAgB,CAAC,UAAsB,EAAE,aAAsB;QAC7D,MAAM,SAAS,GAAG,IAAI,CAAC,2BAA2B,CAAC,UAAU,CAAC,CAAC;QAE/D,OAAO,IAAI,CAAC,QAAQ,CAAC,aAAa,CAAC,CAAC,IAAI,CAAC,MAAM,CAAC,MAAM,CAAC,EAAE;YACvD,OAAO,CAAC,MAAM,IAAI,SAAS,CAAC,OAAO,CAAC,MAAM,CAAC,GAAG,CAAC,CAAC,CAAC;QACnD,CAAC,CAAC,CAAC,CAAC;IACN,CAAC;IAED,4EAA4E;IAC5E,2BAA2B,CAAC,UAAsB;QAChD,MAAM,mBAAmB,GAAoB,EAAE,CAAC;QAEhD,IAAI,CAAC,gBAAgB,CAAC,OAAO,CAAC,CAAC,aAA2B,EAAE,UAAyB,EAAE,EAAE;YACvF,IAAI,IAAI,CAAC,0BAA0B,CAAC,UAAU,EAAE,UAAU,CAAC,EAAE;gBAC3D,mBAAmB,CAAC,IAAI,CAAC,UAAU,CAAC,CAAC;aACtC;QACH,CAAC,CAAC,CAAC;QAEH,OAAO,mBAAmB,CAAC;IAC7B,CAAC;IAED,qFAAqF;IAC7E,YAAY;QAClB,OAAO,IAAI,CAAC,SAAS,IAAI,QAAQ,CAAC;IACpC,CAAC;IAED,+FAA+F;IACvF,UAAU;QAChB,MAAM,GAAG,GAAG,IAAI,CAAC,YAAY,EAAE,CAAC;QAChC,OAAO,GAAG,CAAC,WAAW,IAAI,MAAM,CAAC;IACnC,CAAC;IAED,+EAA+E;IACvE,0BAA0B,CAAC,UAAyB,EAAE,UAAsB;QAClF,IAAI,OAAO,GAAuB,UAAU,CAAC,aAAa,CAAC;QAC3D,IAAI,iBAAiB,GAAG,UAAU,CAAC,aAAa,EAAE,CAAC,aAAa,CAAC;QAEjE,4FAA4F;QAC5F,gCAAgC;QAChC,GAAG;YACD,IAAI,OAAO,IAAI,iBAAiB,EAAE;gBAAE,OAAO,IAAI,CAAC;aAAE;SACnD,QAAQ,OAAO,GAAG,OAAQ,CAAC,aAAa,EAAE;QAE3C,OAAO,KAAK,CAAC;IACf,CAAC;IAED,2CAA2C;IACnC,kBAAkB;QACxB,IAAI,CAAC,mBAAmB,GAAG,IAAI,CAAC,OAAO,CAAC,iBAAiB,CAAC,GAAG,EAAE;YAC7D,MAAM,MAAM,GAAG,IAAI,CAAC,UAAU,EAAE,CAAC;YACjC,OAAO,SAAS,CAAC,MAAM,CAAC,QAAQ,EAAE,QAAQ,CAAC,CAAC,SAAS,CAAC,GAAG,EAAE,CAAC,IAAI,CAAC,SAAS,CAAC,IAAI,EAAE,CAAC,CAAC;QACrF,CAAC,CAAC,CAAC;IACL,CAAC;IAED,4CAA4C;IACpC,qBAAqB;QAC3B,IAAI,IAAI,CAAC,mBAAmB,EAAE;YAC5B,IAAI,CAAC,mBAAmB,CAAC,WAAW,EAAE,CAAC;YACvC,IAAI,CAAC,mBAAmB,GAAG,IAAI,CAAC;SACjC;IACH,CAAC;;;;YAnKF,UAAU,SAAC,EAAC,UAAU,EAAE,MAAM,EAAC;;;YAbA,MAAM;YAD9B,QAAQ;4CAsBD,QAAQ,YAAI,MAAM,SAAC,QAAQ","sourcesContent":["/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {Platform} from '@angular/cdk/platform';\nimport {ElementRef, Injectable, NgZone, OnDestroy, Optional, Inject} from '@angular/core';\nimport {fromEvent, of as observableOf, Subject, Subscription, Observable, Observer} from 'rxjs';\nimport {auditTime, filter} from 'rxjs/operators';\nimport {CdkScrollable} from './scrollable';\nimport {DOCUMENT} from '@angular/common';\n\n/** Time in ms to throttle the scrolling events by default. */\nexport const DEFAULT_SCROLL_TIME = 20;\n\n/**\n * Service contained all registered Scrollable references and emits an event when any one of the\n * Scrollable references emit a scrolled event.\n */\n@Injectable({providedIn: 'root'})\nexport class ScrollDispatcher implements OnDestroy {\n  /** Used to reference correct document/window */\n  protected _document?: Document;\n\n  constructor(private _ngZone: NgZone,\n              private _platform: Platform,\n              /** @breaking-change 11.0.0 make document required */\n              @Optional() @Inject(DOCUMENT) document?: any) {\n    this._document = document;\n  }\n\n  /** Subject for notifying that a registered scrollable reference element has been scrolled. */\n  private _scrolled = new Subject<CdkScrollable|void>();\n\n  /** Keeps track of the global `scroll` and `resize` subscriptions. */\n  _globalSubscription: Subscription | null = null;\n\n  /** Keeps track of the amount of subscriptions to `scrolled`. Used for cleaning up afterwards. */\n  private _scrolledCount = 0;\n\n  /**\n   * Map of all the scrollable references that are registered with the service and their\n   * scroll event subscriptions.\n   */\n  scrollContainers: Map<CdkScrollable, Subscription> = new Map();\n\n  /**\n   * Registers a scrollable instance with the service and listens for its scrolled events. When the\n   * scrollable is scrolled, the service emits the event to its scrolled observable.\n   * @param scrollable Scrollable instance to be registered.\n   */\n  register(scrollable: CdkScrollable): void {\n    if (!this.scrollContainers.has(scrollable)) {\n      this.scrollContainers.set(scrollable, scrollable.elementScrolled()\n          .subscribe(() => this._scrolled.next(scrollable)));\n    }\n  }\n\n  /**\n   * Deregisters a Scrollable reference and unsubscribes from its scroll event observable.\n   * @param scrollable Scrollable instance to be deregistered.\n   */\n  deregister(scrollable: CdkScrollable): void {\n    const scrollableReference = this.scrollContainers.get(scrollable);\n\n    if (scrollableReference) {\n      scrollableReference.unsubscribe();\n      this.scrollContainers.delete(scrollable);\n    }\n  }\n\n  /**\n   * Returns an observable that emits an event whenever any of the registered Scrollable\n   * references (or window, document, or body) fire a scrolled event. Can provide a time in ms\n   * to override the default \"throttle\" time.\n   *\n   * **Note:** in order to avoid hitting change detection for every scroll event,\n   * all of the events emitted from this stream will be run outside the Angular zone.\n   * If you need to update any data bindings as a result of a scroll event, you have\n   * to run the callback using `NgZone.run`.\n   */\n  scrolled(auditTimeInMs: number = DEFAULT_SCROLL_TIME): Observable<CdkScrollable|void> {\n    if (!this._platform.isBrowser) {\n      return observableOf<void>();\n    }\n\n    return new Observable((observer: Observer<CdkScrollable|void>) => {\n      if (!this._globalSubscription) {\n        this._addGlobalListener();\n      }\n\n      // In the case of a 0ms delay, use an observable without auditTime\n      // since it does add a perceptible delay in processing overhead.\n      const subscription = auditTimeInMs > 0 ?\n        this._scrolled.pipe(auditTime(auditTimeInMs)).subscribe(observer) :\n        this._scrolled.subscribe(observer);\n\n      this._scrolledCount++;\n\n      return () => {\n        subscription.unsubscribe();\n        this._scrolledCount--;\n\n        if (!this._scrolledCount) {\n          this._removeGlobalListener();\n        }\n      };\n    });\n  }\n\n  ngOnDestroy() {\n    this._removeGlobalListener();\n    this.scrollContainers.forEach((_, container) => this.deregister(container));\n    this._scrolled.complete();\n  }\n\n  /**\n   * Returns an observable that emits whenever any of the\n   * scrollable ancestors of an element are scrolled.\n   * @param elementRef Element whose ancestors to listen for.\n   * @param auditTimeInMs Time to throttle the scroll events.\n   */\n  ancestorScrolled(elementRef: ElementRef, auditTimeInMs?: number): Observable<CdkScrollable|void> {\n    const ancestors = this.getAncestorScrollContainers(elementRef);\n\n    return this.scrolled(auditTimeInMs).pipe(filter(target => {\n      return !target || ancestors.indexOf(target) > -1;\n    }));\n  }\n\n  /** Returns all registered Scrollables that contain the provided element. */\n  getAncestorScrollContainers(elementRef: ElementRef): CdkScrollable[] {\n    const scrollingContainers: CdkScrollable[] = [];\n\n    this.scrollContainers.forEach((_subscription: Subscription, scrollable: CdkScrollable) => {\n      if (this._scrollableContainsElement(scrollable, elementRef)) {\n        scrollingContainers.push(scrollable);\n      }\n    });\n\n    return scrollingContainers;\n  }\n\n  /** Access injected document if available or fallback to global document reference */\n  private _getDocument(): Document {\n    return this._document || document;\n  }\n\n  /** Use defaultView of injected document if available or fallback to global window reference */\n  private _getWindow(): Window {\n    const doc = this._getDocument();\n    return doc.defaultView || window;\n  }\n\n  /** Returns true if the element is contained within the provided Scrollable. */\n  private _scrollableContainsElement(scrollable: CdkScrollable, elementRef: ElementRef): boolean {\n    let element: HTMLElement | null = elementRef.nativeElement;\n    let scrollableElement = scrollable.getElementRef().nativeElement;\n\n    // Traverse through the element parents until we reach null, checking if any of the elements\n    // are the scrollable's element.\n    do {\n      if (element == scrollableElement) { return true; }\n    } while (element = element!.parentElement);\n\n    return false;\n  }\n\n  /** Sets up the global scroll listeners. */\n  private _addGlobalListener() {\n    this._globalSubscription = this._ngZone.runOutsideAngular(() => {\n      const window = this._getWindow();\n      return fromEvent(window.document, 'scroll').subscribe(() => this._scrolled.next());\n    });\n  }\n\n  /** Cleans up the global scroll listener. */\n  private _removeGlobalListener() {\n    if (this._globalSubscription) {\n      this._globalSubscription.unsubscribe();\n      this._globalSubscription = null;\n    }\n  }\n}\n"]}