@angular/cdk
Version:
Angular Material Component Development Kit
41 lines • 5.57 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 { Directionality } from '@angular/cdk/bidi';
import { Directive, ElementRef, InjectionToken, NgZone, Optional } from '@angular/core';
import { ScrollDispatcher } from './scroll-dispatcher';
import { CdkScrollable } from './scrollable';
import * as i0 from "@angular/core";
import * as i1 from "./scroll-dispatcher";
import * as i2 from "@angular/cdk/bidi";
export const VIRTUAL_SCROLLABLE = new InjectionToken('VIRTUAL_SCROLLABLE');
/**
* Extending the {@link CdkScrollable} to be used as scrolling container for virtual scrolling.
*/
class CdkVirtualScrollable extends CdkScrollable {
constructor(elementRef, scrollDispatcher, ngZone, dir) {
super(elementRef, scrollDispatcher, ngZone, dir);
}
/**
* Measure the viewport size for the provided orientation.
*
* @param orientation The orientation to measure the size from.
*/
measureViewportSize(orientation) {
const viewportEl = this.elementRef.nativeElement;
return orientation === 'horizontal' ? viewportEl.clientWidth : viewportEl.clientHeight;
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.0.0", ngImport: i0, type: CdkVirtualScrollable, deps: [{ token: i0.ElementRef }, { token: i1.ScrollDispatcher }, { token: i0.NgZone }, { token: i2.Directionality, optional: true }], target: i0.ɵɵFactoryTarget.Directive }); }
static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "16.0.0", type: CdkVirtualScrollable, usesInheritance: true, ngImport: i0 }); }
}
export { CdkVirtualScrollable };
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.0.0", ngImport: i0, type: CdkVirtualScrollable, decorators: [{
type: Directive
}], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: i1.ScrollDispatcher }, { type: i0.NgZone }, { type: i2.Directionality, decorators: [{
type: Optional
}] }]; } });
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