@angular/flex-layout
Version:
Angular Flex-Layout =======
151 lines • 18.2 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, PLATFORM_ID } from '@angular/core';
import { ɵMatchMedia as MatchMedia, BREAKPOINTS, LAYOUT_CONFIG } from '@angular/flex-layout/core';
import * as i0 from "@angular/core";
/**
* Special server-only class to simulate a MediaQueryList and
* - supports manual activation to simulate mediaQuery matching
* - manages listeners
*/
export class ServerMediaQueryList {
constructor(_mediaQuery, _isActive = false) {
this._mediaQuery = _mediaQuery;
this._isActive = _isActive;
this._listeners = [];
this.onchange = null;
}
get matches() {
return this._isActive;
}
get media() {
return this._mediaQuery;
}
/**
* Destroy the current list by deactivating the
* listeners and clearing the internal list
*/
destroy() {
this.deactivate();
this._listeners = [];
}
/** Notify all listeners that 'matches === TRUE' */
activate() {
if (!this._isActive) {
this._isActive = true;
this._listeners.forEach((callback) => {
const cb = callback;
cb.call(this, { matches: this.matches, media: this.media });
});
}
return this;
}
/** Notify all listeners that 'matches === false' */
deactivate() {
if (this._isActive) {
this._isActive = false;
this._listeners.forEach((callback) => {
const cb = callback;
cb.call(this, { matches: this.matches, media: this.media });
});
}
return this;
}
/** Add a listener to our internal list to activate later */
addListener(listener) {
if (this._listeners.indexOf(listener) === -1) {
this._listeners.push(listener);
}
if (this._isActive) {
const cb = listener;
cb.call(this, { matches: this.matches, media: this.media });
}
}
/** Don't need to remove listeners in the server environment */
removeListener(_) {
}
addEventListener(_, __, ___) {
}
removeEventListener(_, __, ___) {
}
dispatchEvent(_) {
return false;
}
}
/**
* Special server-only implementation of MatchMedia that uses the above
* ServerMediaQueryList as its internal representation
*
* Also contains methods to activate and deactivate breakpoints
*/
export class ServerMatchMedia extends MatchMedia {
constructor(_zone, _platformId, _document, breakpoints, layoutConfig) {
super(_zone, _platformId, _document);
this._zone = _zone;
this._platformId = _platformId;
this._document = _document;
this.breakpoints = breakpoints;
this.layoutConfig = layoutConfig;
this._activeBreakpoints = [];
const serverBps = layoutConfig.ssrObserveBreakpoints;
if (serverBps) {
this._activeBreakpoints = serverBps
.reduce((acc, serverBp) => {
const foundBp = breakpoints.find(bp => serverBp === bp.alias);
if (!foundBp) {
console.warn(`FlexLayoutServerModule: unknown breakpoint alias "${serverBp}"`);
}
else {
acc.push(foundBp);
}
return acc;
}, []);
}
}
/** Activate the specified breakpoint if we're on the server, no-op otherwise */
activateBreakpoint(bp) {
const lookupBreakpoint = this.registry.get(bp.mediaQuery);
if (lookupBreakpoint) {
lookupBreakpoint.activate();
}
}
/** Deactivate the specified breakpoint if we're on the server, no-op otherwise */
deactivateBreakpoint(bp) {
const lookupBreakpoint = this.registry.get(bp.mediaQuery);
if (lookupBreakpoint) {
lookupBreakpoint.deactivate();
}
}
/**
* Call window.matchMedia() to build a MediaQueryList; which
* supports 0..n listeners for activation/deactivation
*/
buildMQL(query) {
const isActive = this._activeBreakpoints.some(ab => ab.mediaQuery === query);
return new ServerMediaQueryList(query, isActive);
}
}
ServerMatchMedia.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "13.0.2", ngImport: i0, type: ServerMatchMedia, deps: [{ token: i0.NgZone }, { token: PLATFORM_ID }, { token: DOCUMENT }, { token: BREAKPOINTS }, { token: LAYOUT_CONFIG }], target: i0.ɵɵFactoryTarget.Injectable });
ServerMatchMedia.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "13.0.2", ngImport: i0, type: ServerMatchMedia });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "13.0.2", ngImport: i0, type: ServerMatchMedia, decorators: [{
type: Injectable
}], ctorParameters: function () { return [{ type: i0.NgZone }, { type: Object, decorators: [{
type: Inject,
args: [PLATFORM_ID]
}] }, { type: undefined, decorators: [{
type: Inject,
args: [DOCUMENT]
}] }, { type: undefined, decorators: [{
type: Inject,
args: [BREAKPOINTS]
}] }, { type: undefined, decorators: [{
type: Inject,
args: [LAYOUT_CONFIG]
}] }]; } });
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* @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 */\nimport {DOCUMENT} from '@angular/common';\nimport {Inject, Injectable, NgZone, PLATFORM_ID} from '@angular/core';\nimport {\n  BreakPoint,\n  ɵMatchMedia as MatchMedia,\n  BREAKPOINTS,\n  LAYOUT_CONFIG,\n  LayoutConfigOptions\n} from '@angular/flex-layout/core';\n\n/**\n * Special server-only class to simulate a MediaQueryList and\n * - supports manual activation to simulate mediaQuery matching\n * - manages listeners\n */\nexport class ServerMediaQueryList implements MediaQueryList {\n  private _listeners: MediaQueryListListener[] = [];\n\n  get matches(): boolean {\n    return this._isActive;\n  }\n\n  get media(): string {\n    return this._mediaQuery;\n  }\n\n  constructor(private _mediaQuery: string, private _isActive = false) {}\n\n  /**\n   * Destroy the current list by deactivating the\n   * listeners and clearing the internal list\n   */\n  destroy() {\n    this.deactivate();\n    this._listeners = [];\n  }\n\n  /** Notify all listeners that 'matches === TRUE' */\n  activate(): ServerMediaQueryList {\n    if (!this._isActive) {\n      this._isActive = true;\n      this._listeners.forEach((callback) => {\n        const cb: ((this: MediaQueryList, ev: MediaQueryListEvent) => any) = callback!;\n        cb.call(this, {matches: this.matches, media: this.media} as MediaQueryListEvent);\n      });\n    }\n    return this;\n  }\n\n  /** Notify all listeners that 'matches === false' */\n  deactivate(): ServerMediaQueryList {\n    if (this._isActive) {\n      this._isActive = false;\n      this._listeners.forEach((callback) => {\n        const cb: ((this: MediaQueryList, ev: MediaQueryListEvent) => any) = callback!;\n        cb.call(this, {matches: this.matches, media: this.media} as MediaQueryListEvent);\n      });\n    }\n    return this;\n  }\n\n  /** Add a listener to our internal list to activate later */\n  addListener(listener: MediaQueryListListener) {\n    if (this._listeners.indexOf(listener) === -1) {\n      this._listeners.push(listener);\n    }\n    if (this._isActive) {\n      const cb: ((this: MediaQueryList, ev: MediaQueryListEvent) => any) = listener!;\n      cb.call(this, {matches: this.matches, media: this.media} as MediaQueryListEvent);\n    }\n  }\n\n  /** Don't need to remove listeners in the server environment */\n  removeListener(_: MediaQueryListListener | null) {\n  }\n\n  addEventListener<K extends keyof\n    MediaQueryListEventMap>(_: K,\n                            __: (this: MediaQueryList,\n                                 ev: MediaQueryListEventMap[K]) => any,\n                            ___?: boolean | AddEventListenerOptions): void;\n  addEventListener(_: string,\n                   __: EventListenerOrEventListenerObject,\n                   ___?: boolean | AddEventListenerOptions) {\n  }\n\n  removeEventListener<K extends keyof\n    MediaQueryListEventMap>(_: K,\n                            __: (this: MediaQueryList,\n                                 ev: MediaQueryListEventMap[K]) => any,\n                            ___?: boolean | EventListenerOptions): void;\n  removeEventListener(_: string,\n                      __: EventListenerOrEventListenerObject,\n                      ___?: boolean | EventListenerOptions) {\n  }\n\n  dispatchEvent(_: Event): boolean {\n    return false;\n  }\n\n  onchange: MediaQueryListListener = null;\n}\n\n/**\n * Special server-only implementation of MatchMedia that uses the above\n * ServerMediaQueryList as its internal representation\n *\n * Also contains methods to activate and deactivate breakpoints\n */\n@Injectable()\nexport class ServerMatchMedia extends MatchMedia {\n  private _activeBreakpoints: BreakPoint[] = [];\n\n  constructor(protected _zone: NgZone,\n              @Inject(PLATFORM_ID) protected _platformId: Object,\n              @Inject(DOCUMENT) protected _document: any,\n              @Inject(BREAKPOINTS) protected breakpoints: BreakPoint[],\n              @Inject(LAYOUT_CONFIG) protected layoutConfig: LayoutConfigOptions) {\n    super(_zone, _platformId, _document);\n\n    const serverBps = layoutConfig.ssrObserveBreakpoints;\n    if (serverBps) {\n      this._activeBreakpoints = serverBps\n        .reduce((acc: BreakPoint[], serverBp: string) => {\n          const foundBp = breakpoints.find(bp => serverBp === bp.alias);\n          if (!foundBp) {\n            console.warn(`FlexLayoutServerModule: unknown breakpoint alias \"${serverBp}\"`);\n          } else {\n            acc.push(foundBp);\n          }\n          return acc;\n        }, []);\n    }\n  }\n\n  /** Activate the specified breakpoint if we're on the server, no-op otherwise */\n  activateBreakpoint(bp: BreakPoint) {\n    const lookupBreakpoint = this.registry.get(bp.mediaQuery) as ServerMediaQueryList;\n    if (lookupBreakpoint) {\n      lookupBreakpoint.activate();\n    }\n  }\n\n  /** Deactivate the specified breakpoint if we're on the server, no-op otherwise */\n  deactivateBreakpoint(bp: BreakPoint) {\n    const lookupBreakpoint = this.registry.get(bp.mediaQuery) as ServerMediaQueryList;\n    if (lookupBreakpoint) {\n      lookupBreakpoint.deactivate();\n    }\n  }\n\n  /**\n   * Call window.matchMedia() to build a MediaQueryList; which\n   * supports 0..n listeners for activation/deactivation\n   */\n  protected buildMQL(query: string): ServerMediaQueryList {\n    const isActive = this._activeBreakpoints.some(ab => ab.mediaQuery === query);\n\n    return new ServerMediaQueryList(query, isActive);\n  }\n}\n\ntype MediaQueryListListener = ((this: MediaQueryList, ev: MediaQueryListEvent) => any) | null;\n"]}