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animations_with_css_keyframes_animations_integration_spec.ts
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animations_with_css_keyframes_animations_integration_spec.ts
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/**
* @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 {animate, group, keyframes, query, state, style, transition, trigger} from '@angular/animations';
import {AnimationDriver, Ι΅AnimationEngine as AnimationEngine, Ι΅CssKeyframesDriver as CssKeyframesDriver, Ι΅CssKeyframesPlayer as CssKeyframesPlayer} from '@angular/animations/browser';
import {AnimationGroupPlayer} from '@angular/animations/src/players/animation_group_player';
import {Component, ViewChild} from '@angular/core';
import {BrowserAnimationsModule} from '@angular/platform-browser/animations';
import {browserDetection} from '@angular/platform-browser/testing/src/browser_util';
import {ivyEnabled} from '@angular/private/testing';
import {TestBed} from '../../testing';
(function() {
// these tests are only mean't to be run within the DOM (for now)
// Buggy in Chromium 39, see https://github.com/angular/angular/issues/15793
if (isNode) return;
describe('animation integration tests using css keyframe animations', function() {
beforeEach(() => {
TestBed.configureTestingModule({
providers: [{provide: AnimationDriver, useClass: CssKeyframesDriver}],
imports: [BrowserAnimationsModule]
});
});
it('should compute (*) animation styles for a container that is being removed', () => {
@Component({
selector: 'ani-cmp',
template: `
<div @auto *ngIf="exp">
<div style="line-height:20px;">1</div>
<div style="line-height:20px;">2</div>
<div style="line-height:20px;">3</div>
<div style="line-height:20px;">4</div>
<div style="line-height:20px;">5</div>
</div>
`,
animations: [trigger(
'auto',
[
state('void', style({height: '0px'})),
state('*', style({height: '*'})),
transition('* => *', animate(1000)),
])]
})
class Cmp {
public exp: boolean = false;
}
TestBed.configureTestingModule({declarations: [Cmp]});
const engine = TestBed.get(AnimationEngine);
const fixture = TestBed.createComponent(Cmp);
const cmp = fixture.componentInstance;
cmp.exp = true;
fixture.detectChanges();
expect(engine.players.length).toEqual(1);
let player = getPlayer(engine) as CssKeyframesPlayer;
expect(player.keyframes).toEqual([{height: '0px', offset: 0}, {height: '100px', offset: 1}]);
player.finish();
if (browserDetection.isOldChrome) return;
cmp.exp = false;
fixture.detectChanges();
player = getPlayer(engine) as CssKeyframesPlayer;
expect(player.keyframes).toEqual([{height: '100px', offset: 0}, {height: '0px', offset: 1}]);
});
it('should cleanup all existing @keyframe <style> objects after the animation has finished',
() => {
@Component({
selector: 'ani-cmp',
template: `
<div [@myAnimation]="myAnimationExp">
<div>1</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
</div>
`,
animations: [trigger(
'myAnimation',
[
transition(
'* => go',
[
query(
'div',
[
style({opacity: 0}),
animate('1s', style({opacity: 0})),
]),
]),
])]
})
class Cmp {
public myAnimationExp = '';
}
TestBed.configureTestingModule({declarations: [Cmp]});
const engine = TestBed.get(AnimationEngine);
const fixture = TestBed.createComponent(Cmp);
const cmp = fixture.componentInstance;
cmp.myAnimationExp = 'go';
fixture.detectChanges();
const webPlayer = <AnimationGroupPlayer>getPlayer(engine);
const players = webPlayer.players as CssKeyframesPlayer[];
expect(players.length).toEqual(5);
const head = document.querySelector('head') !;
const sheets: any[] = [];
for (let i = 0; i < 5; i++) {
const sheet = findStyleObjectWithKeyframes(i);
expect(head.contains(sheet)).toBeTruthy();
sheets.push(sheet);
}
cmp.myAnimationExp = 'go-back';
fixture.detectChanges();
for (let i = 0; i < 5; i++) {
expect(head.contains(sheets[i])).toBeFalsy();
}
});
it('should properly handle easing values that are apart of the sequence', () => {
@Component({
selector: 'ani-cmp',
template: `
<div #elm [@myAnimation]="myAnimationExp"></div>
`,
animations: [
trigger(
'myAnimation',
[
transition(
'* => goSteps',
[
style({opacity: 0}),
animate('1s ease-out', style({opacity: 1})),
]),
transition(
'* => goKeyframes',
[
animate('1s cubic-bezier(0.5, 1, 0.5, 1)', keyframes([
style({opacity: 0}),
style({opacity: 0.5}),
style({opacity: 1}),
])),
]),
]),
]
})
class Cmp {
@ViewChild('elm') public element: any;
public myAnimationExp = '';
}
TestBed.configureTestingModule({declarations: [Cmp]});
const engine = TestBed.get(AnimationEngine);
const fixture = TestBed.createComponent(Cmp);
const cmp = fixture.componentInstance;
cmp.myAnimationExp = 'goSteps';
fixture.detectChanges();
let kfElm = findStyleObjectWithKeyframes();
const [r1, r2] = kfElm.sheet.cssRules[0].cssRules;
assertEasing(r1, 'ease-out');
assertEasing(r2, '');
const element = cmp.element.nativeElement;
const webPlayer = getPlayer(engine);
cmp.myAnimationExp = 'goKeyframes';
fixture.detectChanges();
assertEasing(element, 'cubic-bezier(0.5,1,0.5,1)');
});
it('should restore existing style values once the animation completes', () => {
@Component({
selector: 'ani-cmp',
template: `
<div #elm [@myAnimation]="myAnimationExp"></div>
`,
animations: [
trigger(
'myAnimation',
[
state('go', style({width: '200px'})),
transition(
'* => go',
[
style({height: '100px', width: '100px'}), group([
animate('1s', style({height: '200px'})),
animate('1s', style({width: '200px'}))
])
]),
]),
]
})
class Cmp {
@ViewChild('elm') public element: any;
public myAnimationExp = '';
}
TestBed.configureTestingModule({declarations: [Cmp]});
const engine = TestBed.get(AnimationEngine);
const fixture = TestBed.createComponent(Cmp);
const cmp = fixture.componentInstance;
fixture.detectChanges();
const element = cmp.element.nativeElement;
element.style['width'] = '50px';
element.style['height'] = '50px';
assertStyle(element, 'width', '50px');
assertStyle(element, 'height', '50px');
cmp.myAnimationExp = 'go';
fixture.detectChanges();
const player = getPlayer(engine);
assertStyle(element, 'width', '100px');
assertStyle(element, 'height', '100px');
player.finish();
assertStyle(element, 'width', '200px');
assertStyle(element, 'height', '50px');
});
it('should clean up 0 second animation styles (queried styles) that contain camel casing when complete',
() => {
@Component({
selector: 'ani-cmp',
template: `
<div #elm [@myAnimation]="myAnimationExp">
<div class="foo"></div>
<div class="bar"></div>
</div>
`,
animations: [
trigger(
'myAnimation',
[
state('go', style({width: '200px'})),
transition(
'* => go',
[
query('.foo', [style({maxHeight: '0px'})]),
query(
'.bar',
[
style({width: '0px'}),
animate('1s', style({width: '100px'})),
]),
]),
]),
]
})
class Cmp {
@ViewChild('elm') public element: any;
public myAnimationExp = '';
}
TestBed.configureTestingModule({declarations: [Cmp]});
const engine = TestBed.get(AnimationEngine);
const fixture = TestBed.createComponent(Cmp);
const cmp = fixture.componentInstance;
// In Ivy, change detection needs to run before the ViewQuery for cmp.element will resolve.
// Keeping this test enabled since we still want to test the animation logic in Ivy.
if (ivyEnabled) fixture.detectChanges();
const elm = cmp.element.nativeElement;
const foo = elm.querySelector('.foo') as HTMLElement;
cmp.myAnimationExp = 'go';
fixture.detectChanges();
expect(foo.style.getPropertyValue('max-height')).toEqual('0px');
const player = engine.players.pop();
player.finish();
expect(foo.style.getPropertyValue('max-height')).toBeFalsy();
});
it('should apply the `display` and `position` styles as regular inline styles for the duration of the animation',
() => {
@Component({
selector: 'ani-cmp',
template: `
<div #elm [@myAnimation]="myAnimationExp" style="display:table; position:fixed"></div>
`,
animations: [
trigger(
'myAnimation',
[
state('go', style({display: 'inline-block'})),
transition(
'* => go',
[
style({display: 'inline', position: 'absolute', opacity: 0}),
animate('1s', style({display: 'inline', opacity: 1, position: 'static'})),
animate('1s', style({display: 'flexbox', opacity: 0})),
])
]),
]
})
class Cmp {
@ViewChild('elm') public element: any;
public myAnimationExp = '';
}
TestBed.configureTestingModule({declarations: [Cmp]});
const engine = TestBed.get(AnimationEngine);
const fixture = TestBed.createComponent(Cmp);
const cmp = fixture.componentInstance;
// In Ivy, change detection needs to run before the ViewQuery for cmp.element will resolve.
// Keeping this test enabled since we still want to test the animation logic in Ivy.
if (ivyEnabled) fixture.detectChanges();
const elm = cmp.element.nativeElement;
expect(elm.style.getPropertyValue('display')).toEqual('table');
expect(elm.style.getPropertyValue('position')).toEqual('fixed');
cmp.myAnimationExp = 'go';
fixture.detectChanges();
expect(elm.style.getPropertyValue('display')).toEqual('inline');
expect(elm.style.getPropertyValue('position')).toEqual('absolute');
const player = engine.players.pop();
player.finish();
player.destroy();
expect(elm.style.getPropertyValue('display')).toEqual('inline-block');
expect(elm.style.getPropertyValue('position')).toEqual('fixed');
});
});
})();
function getPlayer(engine: AnimationEngine, index = 0) {
return (engine.players[index] as any) !.getRealPlayer();
}
function findStyleObjectWithKeyframes(index?: number): any|null {
const sheetWithKeyframes = document.styleSheets[document.styleSheets.length - (index || 1)];
const styleElms = Array.from(document.querySelectorAll('head style') as any as any[]);
return styleElms.find(elm => elm.sheet == sheetWithKeyframes) || null;
}
function assertEasing(node: any, easing: string) {
expect((node.style.animationTimingFunction || '').replace(/\s+/g, '')).toEqual(easing);
}
function assertStyle(node: any, prop: string, value: string) {
expect(node.style[prop] || '').toEqual(value);
}