angular-cn/packages/animations/browser/testing/src/mock_animation_driver.ts

123 lines
3.6 KiB
TypeScript

/**
* @license
* Copyright Google Inc. 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 {AUTO_STYLE, AnimationPlayer, NoopAnimationPlayer, ɵStyleData} from '@angular/animations';
import {ɵAnimationDriver as AnimationDriver, ɵallowPreviousPlayerStylesMerge as allowPreviousPlayerStylesMerge, ɵcontainsElement as containsElement, ɵinvokeQuery as invokeQuery, ɵmatchesElement as matchesElement, ɵvalidateStyleProperty as validateStyleProperty} from '@angular/animations/browser';
/**
* @publicApi
*/
export class MockAnimationDriver implements AnimationDriver {
static log: AnimationPlayer[] = [];
validateStyleProperty(prop: string): boolean { return validateStyleProperty(prop); }
matchesElement(element: any, selector: string): boolean {
return matchesElement(element, selector);
}
containsElement(elm1: any, elm2: any): boolean { return containsElement(elm1, elm2); }
query(element: any, selector: string, multi: boolean): any[] {
return invokeQuery(element, selector, multi);
}
computeStyle(element: any, prop: string, defaultValue?: string): string {
return defaultValue || '';
}
animate(
element: any, keyframes: {[key: string]: string | number}[], duration: number, delay: number,
easing: string, previousPlayers: any[] = []): MockAnimationPlayer {
const player =
new MockAnimationPlayer(element, keyframes, duration, delay, easing, previousPlayers);
MockAnimationDriver.log.push(<AnimationPlayer>player);
return player;
}
}
/**
* @publicApi
*/
export class MockAnimationPlayer extends NoopAnimationPlayer {
private __finished = false;
private __started = false;
public previousStyles: {[key: string]: string | number} = {};
private _onInitFns: (() => any)[] = [];
public currentSnapshot: ɵStyleData = {};
constructor(
public element: any, public keyframes: {[key: string]: string | number}[],
public duration: number, public delay: number, public easing: string,
public previousPlayers: any[]) {
super(duration, delay);
if (allowPreviousPlayerStylesMerge(duration, delay)) {
previousPlayers.forEach(player => {
if (player instanceof MockAnimationPlayer) {
const styles = player.currentSnapshot;
Object.keys(styles).forEach(prop => this.previousStyles[prop] = styles[prop]);
}
});
}
}
/* @internal */
onInit(fn: () => any) { this._onInitFns.push(fn); }
/* @internal */
init() {
super.init();
this._onInitFns.forEach(fn => fn());
this._onInitFns = [];
}
finish(): void {
super.finish();
this.__finished = true;
}
destroy(): void {
super.destroy();
this.__finished = true;
}
/* @internal */
triggerMicrotask() {}
play(): void {
super.play();
this.__started = true;
}
hasStarted() { return this.__started; }
beforeDestroy() {
const captures: ɵStyleData = {};
Object.keys(this.previousStyles).forEach(prop => {
captures[prop] = this.previousStyles[prop];
});
if (this.hasStarted()) {
// when assembling the captured styles, it's important that
// we build the keyframe styles in the following order:
// {other styles within keyframes, ... previousStyles }
this.keyframes.forEach(kf => {
Object.keys(kf).forEach(prop => {
if (prop != 'offset') {
captures[prop] = this.__finished ? kf[prop] : AUTO_STYLE;
}
});
});
}
this.currentSnapshot = captures;
}
}