1 | (function (global, factory) {
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2 | typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/cdk/coercion'), require('@angular/core'), require('rxjs'), require('rxjs/operators')) :
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3 | typeof define === 'function' && define.amd ? define('@angular/cdk/observers', ['exports', '@angular/cdk/coercion', '@angular/core', 'rxjs', 'rxjs/operators'], factory) :
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4 | (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory((global.ng = global.ng || {}, global.ng.cdk = global.ng.cdk || {}, global.ng.cdk.observers = {}), global.ng.cdk.coercion, global.ng.core, global.rxjs, global.rxjs.operators));
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5 | }(this, (function (exports, coercion, i0, rxjs, operators) { 'use strict';
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6 |
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7 | function _interopNamespace(e) {
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8 | if (e && e.__esModule) return e;
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9 | var n = Object.create(null);
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10 | if (e) {
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11 | Object.keys(e).forEach(function (k) {
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12 | if (k !== 'default') {
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13 | var d = Object.getOwnPropertyDescriptor(e, k);
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14 | Object.defineProperty(n, k, d.get ? d : {
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15 | enumerable: true,
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16 | get: function () {
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17 | return e[k];
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18 | }
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19 | });
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20 | }
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21 | });
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22 | }
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23 | n['default'] = e;
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24 | return Object.freeze(n);
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25 | }
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26 |
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27 | var i0__namespace = _interopNamespace(i0);
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28 |
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29 | |
30 |
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31 |
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32 |
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33 |
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34 |
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35 |
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36 | |
37 |
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38 |
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39 |
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40 | var MutationObserverFactory = (function () {
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41 | function MutationObserverFactory() {
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42 | }
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43 | MutationObserverFactory.prototype.create = function (callback) {
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44 | return typeof MutationObserver === 'undefined' ? null : new MutationObserver(callback);
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45 | };
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46 | return MutationObserverFactory;
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47 | }());
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48 | MutationObserverFactory.ɵprov = i0__namespace.ɵɵdefineInjectable({ factory: function MutationObserverFactory_Factory() { return new MutationObserverFactory(); }, token: MutationObserverFactory, providedIn: "root" });
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49 | MutationObserverFactory.decorators = [
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50 | { type: i0.Injectable, args: [{ providedIn: 'root' },] }
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51 | ];
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52 |
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53 | var ContentObserver = (function () {
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54 | function ContentObserver(_mutationObserverFactory) {
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55 | this._mutationObserverFactory = _mutationObserverFactory;
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56 |
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57 | this._observedElements = new Map();
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58 | }
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59 | ContentObserver.prototype.ngOnDestroy = function () {
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60 | var _this = this;
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61 | this._observedElements.forEach(function (_, element) { return _this._cleanupObserver(element); });
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62 | };
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63 | ContentObserver.prototype.observe = function (elementOrRef) {
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64 | var _this = this;
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65 | var element = coercion.coerceElement(elementOrRef);
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66 | return new rxjs.Observable(function (observer) {
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67 | var stream = _this._observeElement(element);
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68 | var subscription = stream.subscribe(observer);
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69 | return function () {
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70 | subscription.unsubscribe();
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71 | _this._unobserveElement(element);
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72 | };
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73 | });
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74 | };
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75 | |
76 |
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77 |
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78 |
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79 | ContentObserver.prototype._observeElement = function (element) {
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80 | if (!this._observedElements.has(element)) {
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81 | var stream_1 = new rxjs.Subject();
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82 | var observer = this._mutationObserverFactory.create(function (mutations) { return stream_1.next(mutations); });
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83 | if (observer) {
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84 | observer.observe(element, {
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85 | characterData: true,
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86 | childList: true,
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87 | subtree: true
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88 | });
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89 | }
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90 | this._observedElements.set(element, { observer: observer, stream: stream_1, count: 1 });
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91 | }
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92 | else {
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93 | this._observedElements.get(element).count++;
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94 | }
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95 | return this._observedElements.get(element).stream;
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96 | };
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97 | |
98 |
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99 |
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100 |
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101 | ContentObserver.prototype._unobserveElement = function (element) {
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102 | if (this._observedElements.has(element)) {
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103 | this._observedElements.get(element).count--;
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104 | if (!this._observedElements.get(element).count) {
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105 | this._cleanupObserver(element);
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106 | }
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107 | }
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108 | };
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109 |
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110 | ContentObserver.prototype._cleanupObserver = function (element) {
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111 | if (this._observedElements.has(element)) {
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112 | var _b = this._observedElements.get(element), observer = _b.observer, stream = _b.stream;
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113 | if (observer) {
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114 | observer.disconnect();
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115 | }
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116 | stream.complete();
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117 | this._observedElements.delete(element);
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118 | }
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119 | };
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120 | return ContentObserver;
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121 | }());
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122 | ContentObserver.ɵprov = i0__namespace.ɵɵdefineInjectable({ factory: function ContentObserver_Factory() { return new ContentObserver(i0__namespace.ɵɵinject(MutationObserverFactory)); }, token: ContentObserver, providedIn: "root" });
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123 | ContentObserver.decorators = [
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124 | { type: i0.Injectable, args: [{ providedIn: 'root' },] }
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125 | ];
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126 | ContentObserver.ctorParameters = function () { return [
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127 | { type: MutationObserverFactory }
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128 | ]; };
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129 | |
130 |
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131 |
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132 |
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133 | var CdkObserveContent = (function () {
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134 | function CdkObserveContent(_contentObserver, _elementRef, _ngZone) {
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135 | this._contentObserver = _contentObserver;
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136 | this._elementRef = _elementRef;
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137 | this._ngZone = _ngZone;
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138 |
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139 | this.event = new i0.EventEmitter();
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140 | this._disabled = false;
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141 | this._currentSubscription = null;
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142 | }
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143 | Object.defineProperty(CdkObserveContent.prototype, "disabled", {
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144 | |
145 |
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146 |
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147 |
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148 | get: function () { return this._disabled; },
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149 | set: function (value) {
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150 | this._disabled = coercion.coerceBooleanProperty(value);
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151 | this._disabled ? this._unsubscribe() : this._subscribe();
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152 | },
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153 | enumerable: false,
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154 | configurable: true
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155 | });
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156 | Object.defineProperty(CdkObserveContent.prototype, "debounce", {
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157 |
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158 | get: function () { return this._debounce; },
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159 | set: function (value) {
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160 | this._debounce = coercion.coerceNumberProperty(value);
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161 | this._subscribe();
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162 | },
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163 | enumerable: false,
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164 | configurable: true
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165 | });
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166 | CdkObserveContent.prototype.ngAfterContentInit = function () {
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167 | if (!this._currentSubscription && !this.disabled) {
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168 | this._subscribe();
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169 | }
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170 | };
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171 | CdkObserveContent.prototype.ngOnDestroy = function () {
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172 | this._unsubscribe();
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173 | };
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174 | CdkObserveContent.prototype._subscribe = function () {
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175 | var _this = this;
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176 | this._unsubscribe();
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177 | var stream = this._contentObserver.observe(this._elementRef);
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178 |
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179 |
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180 |
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181 |
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182 | this._ngZone.runOutsideAngular(function () {
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183 | _this._currentSubscription =
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184 | (_this.debounce ? stream.pipe(operators.debounceTime(_this.debounce)) : stream).subscribe(_this.event);
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185 | });
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186 | };
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187 | CdkObserveContent.prototype._unsubscribe = function () {
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188 | var _a;
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189 | (_a = this._currentSubscription) === null || _a === void 0 ? void 0 : _a.unsubscribe();
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190 | };
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191 | return CdkObserveContent;
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192 | }());
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193 | CdkObserveContent.decorators = [
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194 | { type: i0.Directive, args: [{
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195 | selector: '[cdkObserveContent]',
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196 | exportAs: 'cdkObserveContent',
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197 | },] }
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198 | ];
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199 | CdkObserveContent.ctorParameters = function () { return [
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200 | { type: ContentObserver },
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201 | { type: i0.ElementRef },
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202 | { type: i0.NgZone }
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203 | ]; };
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204 | CdkObserveContent.propDecorators = {
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205 | event: [{ type: i0.Output, args: ['cdkObserveContent',] }],
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206 | disabled: [{ type: i0.Input, args: ['cdkObserveContentDisabled',] }],
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207 | debounce: [{ type: i0.Input }]
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208 | };
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209 | var ObserversModule = (function () {
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210 | function ObserversModule() {
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211 | }
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212 | return ObserversModule;
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213 | }());
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214 | ObserversModule.decorators = [
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215 | { type: i0.NgModule, args: [{
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216 | exports: [CdkObserveContent],
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217 | declarations: [CdkObserveContent],
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218 | providers: [MutationObserverFactory]
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219 | },] }
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220 | ];
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221 |
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222 | |
223 |
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224 |
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225 |
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226 |
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227 |
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228 |
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229 |
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230 | |
231 |
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232 |
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233 |
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234 | exports.CdkObserveContent = CdkObserveContent;
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235 | exports.ContentObserver = ContentObserver;
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236 | exports.MutationObserverFactory = MutationObserverFactory;
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237 | exports.ObserversModule = ObserversModule;
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238 |
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239 | Object.defineProperty(exports, '__esModule', { value: true });
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240 |
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241 | })));
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242 |
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