ng-zorro-antd
Version:
An enterprise-class UI components based on Ant Design and Angular
59 lines • 6.29 kB
JavaScript
/**
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
*/
import { Injectable, NgZone, RendererFactory2 } from '@angular/core';
import { Subject } from 'rxjs';
import { auditTime, finalize } from 'rxjs/operators';
import * as i0 from "@angular/core";
const NOOP = () => { };
const ɵ0 = NOOP;
export class NzResizeService {
constructor(ngZone, rendererFactory2) {
this.ngZone = ngZone;
this.rendererFactory2 = rendererFactory2;
this.resizeSource$ = new Subject();
this.listeners = 0;
this.disposeHandle = NOOP;
this.handler = () => {
this.ngZone.run(() => {
this.resizeSource$.next();
});
};
this.renderer = this.rendererFactory2.createRenderer(null, null);
}
subscribe() {
this.registerListener();
return this.resizeSource$.pipe(auditTime(16), finalize(() => this.unregisterListener()));
}
unsubscribe() {
this.unregisterListener();
}
registerListener() {
if (this.listeners === 0) {
this.ngZone.runOutsideAngular(() => {
this.disposeHandle = this.renderer.listen('window', 'resize', this.handler);
});
}
this.listeners += 1;
}
unregisterListener() {
this.listeners -= 1;
if (this.listeners === 0) {
this.disposeHandle();
this.disposeHandle = NOOP;
}
}
}
NzResizeService.ɵprov = i0.ɵɵdefineInjectable({ factory: function NzResizeService_Factory() { return new NzResizeService(i0.ɵɵinject(i0.NgZone), i0.ɵɵinject(i0.RendererFactory2)); }, token: NzResizeService, providedIn: "root" });
NzResizeService.decorators = [
{ type: Injectable, args: [{
providedIn: 'root'
},] }
];
NzResizeService.ctorParameters = () => [
{ type: NgZone },
{ type: RendererFactory2 }
];
export { ɵ0 };
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