UNPKG

17.1 kBJavaScriptView Raw
1/**
2 * @license
3 * Copyright Google LLC All Rights Reserved.
4 *
5 * Use of this source code is governed by an MIT-style license that can be
6 * found in the LICENSE file at https://angular.io/license
7 */
8import { DOCUMENT } from '@angular/common';
9import { Inject, Injectable, PLATFORM_ID } from '@angular/core';
10import { ɵMatchMedia as MatchMedia, BREAKPOINTS, LAYOUT_CONFIG } from '@angular/flex-layout/core';
11import * as i0 from "@angular/core";
12/**
13 * Special server-only class to simulate a MediaQueryList and
14 * - supports manual activation to simulate mediaQuery matching
15 * - manages listeners
16 */
17export class ServerMediaQueryList extends EventTarget {
18 constructor(_mediaQuery, _isActive = false) {
19 super();
20 this._mediaQuery = _mediaQuery;
21 this._isActive = _isActive;
22 this._listeners = [];
23 this.onchange = null;
24 }
25 get matches() {
26 return this._isActive;
27 }
28 get media() {
29 return this._mediaQuery;
30 }
31 /**
32 * Destroy the current list by deactivating the
33 * listeners and clearing the internal list
34 */
35 destroy() {
36 this.deactivate();
37 this._listeners = [];
38 }
39 /** Notify all listeners that 'matches === TRUE' */
40 activate() {
41 if (!this._isActive) {
42 this._isActive = true;
43 this._listeners.forEach((callback) => {
44 const cb = callback;
45 cb.call(this, { matches: this.matches, media: this.media });
46 });
47 }
48 return this;
49 }
50 /** Notify all listeners that 'matches === false' */
51 deactivate() {
52 if (this._isActive) {
53 this._isActive = false;
54 this._listeners.forEach((callback) => {
55 const cb = callback;
56 cb.call(this, { matches: this.matches, media: this.media });
57 });
58 }
59 return this;
60 }
61 /** Add a listener to our internal list to activate later */
62 addListener(listener) {
63 if (this._listeners.indexOf(listener) === -1) {
64 this._listeners.push(listener);
65 }
66 if (this._isActive) {
67 const cb = listener;
68 cb.call(this, { matches: this.matches, media: this.media });
69 }
70 }
71 /** Don't need to remove listeners in the server environment */
72 removeListener() {
73 }
74 addEventListener() {
75 }
76 removeEventListener() {
77 }
78 dispatchEvent(_) {
79 return false;
80 }
81}
82/**
83 * Special server-only implementation of MatchMedia that uses the above
84 * ServerMediaQueryList as its internal representation
85 *
86 * Also contains methods to activate and deactivate breakpoints
87 */
88export class ServerMatchMedia extends MatchMedia {
89 constructor(_zone, _platformId, _document, breakpoints, layoutConfig) {
90 super(_zone, _platformId, _document);
91 this._zone = _zone;
92 this._platformId = _platformId;
93 this._document = _document;
94 this.breakpoints = breakpoints;
95 this.layoutConfig = layoutConfig;
96 this._activeBreakpoints = [];
97 const serverBps = layoutConfig.ssrObserveBreakpoints;
98 if (serverBps) {
99 this._activeBreakpoints = serverBps
100 .reduce((acc, serverBp) => {
101 const foundBp = breakpoints.find(bp => serverBp === bp.alias);
102 if (!foundBp) {
103 console.warn(`FlexLayoutServerModule: unknown breakpoint alias "${serverBp}"`);
104 }
105 else {
106 acc.push(foundBp);
107 }
108 return acc;
109 }, []);
110 }
111 }
112 /** Activate the specified breakpoint if we're on the server, no-op otherwise */
113 activateBreakpoint(bp) {
114 const lookupBreakpoint = this.registry.get(bp.mediaQuery);
115 if (lookupBreakpoint) {
116 lookupBreakpoint.activate();
117 }
118 }
119 /** Deactivate the specified breakpoint if we're on the server, no-op otherwise */
120 deactivateBreakpoint(bp) {
121 const lookupBreakpoint = this.registry.get(bp.mediaQuery);
122 if (lookupBreakpoint) {
123 lookupBreakpoint.deactivate();
124 }
125 }
126 /**
127 * Call window.matchMedia() to build a MediaQueryList; which
128 * supports 0..n listeners for activation/deactivation
129 */
130 buildMQL(query) {
131 const isActive = this._activeBreakpoints.some(ab => ab.mediaQuery === query);
132 return new ServerMediaQueryList(query, isActive);
133 }
134}
135ServerMatchMedia.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.0.2", ngImport: i0, type: ServerMatchMedia, deps: [{ token: i0.NgZone }, { token: PLATFORM_ID }, { token: DOCUMENT }, { token: BREAKPOINTS }, { token: LAYOUT_CONFIG }], target: i0.ɵɵFactoryTarget.Injectable });
136ServerMatchMedia.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.0.2", ngImport: i0, type: ServerMatchMedia });
137i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.0.2", ngImport: i0, type: ServerMatchMedia, decorators: [{
138 type: Injectable
139 }], ctorParameters: function () { return [{ type: i0.NgZone }, { type: Object, decorators: [{
140 type: Inject,
141 args: [PLATFORM_ID]
142 }] }, { type: undefined, decorators: [{
143 type: Inject,
144 args: [DOCUMENT]
145 }] }, { type: undefined, decorators: [{
146 type: Inject,
147 args: [BREAKPOINTS]
148 }] }, { type: undefined, decorators: [{
149 type: Inject,
150 args: [LAYOUT_CONFIG]
151 }] }]; } });
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supports manual activation to simulate mediaQuery matching\n * - manages listeners\n */\nexport class ServerMediaQueryList extends EventTarget 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    super();\n  }\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() {\n  }\n\n  override addEventListener() {\n  }\n\n  override removeEventListener() {\n  }\n\n  override 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 override _zone: NgZone,\n              @Inject(PLATFORM_ID) protected override _platformId: Object,\n              @Inject(DOCUMENT) protected override _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 override 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"]}
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