carbon-components-angular
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<div class="content injectable">
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<li class="breadcrumb-item">Injectables</li>
<li class="breadcrumb-item" >AnimationFrameServiceSingleton</li>
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<h3>File</h3>
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<p class="comment">
<code>src/utils/animation-frame.service.ts</code>
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<section data-compodoc="block-index">
<h3 id="index">Index</h3>
<table class="table table-sm table-bordered index-table">
<tbody>
<tr>
<td class="col-md-4">
<h6><b>Properties</b></h6>
</td>
</tr>
<tr>
<td class="col-md-4">
<ul class="index-list">
<li>
<span class="modifier">Protected</span>
<a href="#animationFrameId" >animationFrameId</a>
</li>
<li>
<span class="modifier">Protected</span>
<a href="#frameSource" >frameSource</a>
</li>
<li>
<span class="modifier">Public</span>
<a href="#tick" >tick</a>
</li>
</ul>
</td>
</tr>
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<td class="col-md-4">
<h6><b>Methods</b></h6>
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<td class="col-md-4">
<ul class="index-list">
<li>
<span class="modifier">Protected</span>
<a href="#doTick" >doTick</a>
</li>
<li>
<a href="#ngOnDestroy" >ngOnDestroy</a>
</li>
</ul>
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</tr>
</tbody>
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<h3 id="constructor">Constructor</h3>
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<code>constructor(ngZone: NgZone)</code>
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<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="14" class="link-to-prism">src/utils/animation-frame.service.ts:14</a></div>
</td>
</tr>
<tr>
<td class="col-md-4">
<div>
<b>Parameters :</b>
<table class="params">
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Optional</td>
</tr>
</thead>
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<tr>
<td>ngZone</td>
<td>
<code>NgZone</code>
</td>
<td>
No
</td>
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Methods
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<a name="doTick"></a>
<span class="name">
<span class="modifier">Protected</span>
<span ><b>doTick</b></span>
<a href="#doTick"><span class="icon ion-ios-link"></span></a>
</span>
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<span class="modifier-icon icon ion-ios-reset"></span>
<code>doTick(frame: <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/number" target="_blank">number</a>)</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="27"
class="link-to-prism">src/utils/animation-frame.service.ts:27</a></div>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-description">
<b>Parameters :</b>
<table class="params">
<thead>
<tr>
<td>Name</td>
<td>Type</td>
<td>Optional</td>
</tr>
</thead>
<tbody>
<tr>
<td>frame</td>
<td>
<code><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/number" target="_blank" >number</a></code>
</td>
<td>
No
</td>
</tr>
</tbody>
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<div class="io-description">
<b>Returns : </b> <code><a href="https://www.typescriptlang.org/docs/handbook/basic-types.html" target="_blank" >void</a></code>
</div>
<div class="io-description">
</div>
</td>
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<a name="ngOnDestroy"></a>
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<span ><b>ngOnDestroy</b></span>
<a href="#ngOnDestroy"><span class="icon ion-ios-link"></span></a>
</span>
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<code>ngOnDestroy()</code>
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<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="23"
class="link-to-prism">src/utils/animation-frame.service.ts:23</a></div>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-description">
<b>Returns : </b> <code><a href="https://www.typescriptlang.org/docs/handbook/basic-types.html" target="_blank" >void</a></code>
</div>
</td>
</tr>
</tbody>
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<h3 id="inputs">
Properties
</h3>
<table class="table table-sm table-bordered">
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<tr>
<td class="col-md-4">
<a name="animationFrameId"></a>
<span class="name">
<span class="modifier">Protected</span>
<span ><b>animationFrameId</b></span>
<a href="#animationFrameId"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Type : </i> <code><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/number" target="_blank" >number</a></code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="14" class="link-to-prism">src/utils/animation-frame.service.ts:14</a></div>
</td>
</tr>
</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="frameSource"></a>
<span class="name">
<span class="modifier">Protected</span>
<span ><b>frameSource</b></span>
<a href="#frameSource"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Default value : </i><code>new Subject<number>()</code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="12" class="link-to-prism">src/utils/animation-frame.service.ts:12</a></div>
</td>
</tr>
</tbody>
</table>
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td class="col-md-4">
<a name="tick"></a>
<span class="name">
<span class="modifier">Public</span>
<span ><b>tick</b></span>
<a href="#tick"><span class="icon ion-ios-link"></span></a>
</span>
</td>
</tr>
<tr>
<td class="col-md-4">
<i>Type : </i> <code>Observable<number></code>
</td>
</tr>
<tr>
<td class="col-md-4">
<div class="io-line">Defined in <a href="" data-line="10" class="link-to-prism">src/utils/animation-frame.service.ts:10</a></div>
</td>
</tr>
</tbody>
</table>
</section>
</div>
<div class="tab-pane fade tab-source-code" id="source">
<pre class="line-numbers compodoc-sourcecode"><code class="language-typescript">import {
Injectable,
OnDestroy,
NgZone
} from "@angular/core";
import { Observable, Subject, from } from "rxjs";
@Injectable()
export class AnimationFrameServiceSingleton implements OnDestroy {
public tick: Observable<number>;
protected frameSource = new Subject<number>();
protected animationFrameId: number;
constructor(protected ngZone: NgZone) {
this.tick = this.frameSource.asObservable();
this.ngZone.runOutsideAngular(() => {
this.animationFrameId = requestAnimationFrame(this.doTick.bind(this));
});
}
ngOnDestroy() {
cancelAnimationFrame(this.animationFrameId);
}
protected doTick(frame: number) {
this.frameSource.next(frame);
this.ngZone.runOutsideAngular(() => {
requestAnimationFrame(this.doTick.bind(this));
});
}
}
@Injectable()
export class AnimationFrameService {
public tick: Observable<number>;
constructor(protected singleton: AnimationFrameServiceSingleton) {
this.tick = from(this.singleton.tick);
}
}
</code></pre>
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