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fix(animations): properly handle cancelled animation style application

This commit is contained in:
Matias Niemelä 2017-06-29 17:05:52 -07:00 committed by Jason Aden
parent 858dea98e5
commit 105e920b69
7 changed files with 194 additions and 74 deletions
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29
packages/animations/browser/src/render/transition_animation_engine.ts
View File

@ -18,7 +18,7 @@ import {ENTER_CLASSNAME, LEAVE_CLASSNAME, NG_ANIMATING_CLASSNAME, NG_ANIMATING_S
import {AnimationDriver} from './animation_driver';
import {getOrSetAsInMap, listenOnPlayer, makeAnimationEvent, normalizeKeyframes, optimizeGroupPlayer} from './shared';
const EMPTY_PLAYER_ARRAY: AnimationPlayer[] = [];
const EMPTY_PLAYER_ARRAY: TransitionAnimationPlayer[] = [];
const NULL_REMOVAL_STATE: ElementAnimationState = {
namespaceId: '',
setForRemoval: null,
@ -708,7 +708,14 @@ export class TransitionAnimationEngine {
if (this._namespaceList.length &&
(this.totalQueuedPlayers || this.collectedLeaveElements.length)) {
players = this._flushAnimations(microtaskId);
const cleanupFns: Function[] = [];
try {
players = this._flushAnimations(cleanupFns, microtaskId);
} finally {
for (let i = 0; i < cleanupFns.length; i++) {
cleanupFns[i]();
}
}
} else {
for (let i = 0; i < this.collectedLeaveElements.length; i++) {
const element = this.collectedLeaveElements[i];
@ -737,7 +744,8 @@ export class TransitionAnimationEngine {
}
}
private _flushAnimations(microtaskId: number): TransitionAnimationPlayer[] {
private _flushAnimations(cleanupFns: Function[], microtaskId: number):
TransitionAnimationPlayer[] {
const subTimelines = new ElementInstructionMap();
const skippedPlayers: TransitionAnimationPlayer[] = [];
const skippedPlayersMap = new Map<any, AnimationPlayer[]>();
@ -745,7 +753,6 @@ export class TransitionAnimationEngine {
const queriedElements = new Map<any, TransitionAnimationPlayer[]>();
const allPreStyleElements = new Map<any, Set<string>>();
const allPostStyleElements = new Map<any, Set<string>>();
const cleanupFns: Function[] = [];
const bodyNode = getBodyNode();
const allEnterNodes: any[] = this.collectedEnterElements.length ?
@ -855,7 +862,6 @@ export class TransitionAnimationEngine {
instruction.errors !.forEach(error => { msg += `- ${error}\n`; });
});
cleanupFns.forEach(fn => fn());
allPlayers.forEach(player => player.destroy());
throw new Error(msg);
}
@ -1011,7 +1017,6 @@ export class TransitionAnimationEngine {
player.play();
});
cleanupFns.forEach(fn => fn());
return rootPlayers;
}
@ -1107,20 +1112,16 @@ export class TransitionAnimationEngine {
const allSubElements = new Set<any>();
const allNewPlayers = instruction.timelines.map(timelineInstruction => {
const element = timelineInstruction.element;
allConsumedElements.add(element);
// FIXME (matsko): make sure to-be-removed animations are removed properly
const details = element[REMOVAL_FLAG];
if (details && details.removedBeforeQueried) return new NoopAnimationPlayer();
const isQueriedElement = element !== rootElement;
let previousPlayers: AnimationPlayer[] = EMPTY_PLAYER_ARRAY;
if (!allConsumedElements.has(element)) {
allConsumedElements.add(element);
const _previousPlayers = allPreviousPlayersMap.get(element);
if (_previousPlayers) {
previousPlayers = _previousPlayers.map(p => p.getRealPlayer());
}
}
const previousPlayers =
(allPreviousPlayersMap.get(element) || EMPTY_PLAYER_ARRAY).map(p => p.getRealPlayer());
const preStyles = preStylesMap.get(element);
const postStyles = postStylesMap.get(element);
const keyframes = normalizeKeyframes(

7
packages/animations/browser/src/render/web_animations/web_animations_player.ts
View File

@ -7,7 +7,7 @@
*/
import {AnimationPlayer} from '@angular/animations';
import {copyStyles, eraseStyles, setStyles} from '../../util';
import {allowPreviousPlayerStylesMerge, copyStyles} from '../../util';
import {DOMAnimation} from './dom_animation';
@ -26,7 +26,7 @@ export class WebAnimationsPlayer implements AnimationPlayer {
public time = 0;
public parentPlayer: AnimationPlayer|null = null;
public previousStyles: {[styleName: string]: string | number};
public previousStyles: {[styleName: string]: string | number} = {};
public currentSnapshot: {[styleName: string]: string | number} = {};
constructor(
@ -37,12 +37,13 @@ export class WebAnimationsPlayer implements AnimationPlayer {
this._delay = <number>options['delay'] || 0;
this.time = this._duration + this._delay;
this.previousStyles = {};
if (allowPreviousPlayerStylesMerge(this._duration, this._delay)) {
previousPlayers.forEach(player => {
let styles = player.currentSnapshot;
Object.keys(styles).forEach(prop => this.previousStyles[prop] = styles[prop]);
});
}
}
private _onFinish() {
if (!this._finished) {

4
packages/animations/browser/src/util.ts
View File

@ -213,3 +213,7 @@ const DASH_CASE_REGEXP = /-+([a-z0-9])/g;
export function dashCaseToCamelCase(input: string): string {
return input.replace(DASH_CASE_REGEXP, (...m: any[]) => m[1].toUpperCase());
}
export function allowPreviousPlayerStylesMerge(duration: number, delay: number) {
return duration === 0 || delay === 0;
}

5
packages/animations/browser/testing/src/mock_animation_driver.ts
View File

@ -9,7 +9,7 @@ import {AUTO_STYLE, AnimationPlayer, NoopAnimationPlayer, ɵStyleData} from '@an
import {AnimationDriver} from '../../src/render/animation_driver';
import {containsElement, invokeQuery, matchesElement} from '../../src/render/shared';
import {allowPreviousPlayerStylesMerge} from '../../src/util';
/**
* @experimental Animation support is experimental.
@ -56,12 +56,15 @@ export class MockAnimationPlayer extends NoopAnimationPlayer {
public duration: number, public delay: number, public easing: string,
public previousPlayers: any[]) {
super();
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]);
}
});
}
this.totalTime = delay + duration;
}

2
packages/core/test/animation/animation_integration_spec.ts
View File

@ -782,7 +782,7 @@ export function main() {
expect(players.length).toEqual(3);
const [p1, p2, p3] = players;
expect(p1.previousStyles).toEqual({opacity: AUTO_STYLE});
expect(p2.previousStyles).toEqual({});
expect(p2.previousStyles).toEqual({opacity: AUTO_STYLE});
expect(p3.previousStyles).toEqual({});
});

19
packages/core/test/animation/animation_query_integration_spec.ts
View File

@ -1000,7 +1000,8 @@ export function main() {
}
});
it('should properly cancel items that were queried into a former animation', () => {
it('should properly cancel items that were queried into a former animation and pass in the associated styles into the follow-up players per element',
() => {
@Component({
selector: 'ani-cmp',
template: `
@ -1052,16 +1053,16 @@ export function main() {
expect(players.length).toEqual(4);
const [p1, p2, p3, p4] = players;
const [p1p1, p1p2] = p1.previousPlayers;
const [p2p1, p2p2] = p2.previousPlayers;
expect(p1p1).toBe(previousPlayers[3]);
expect(p1p2).toBe(previousPlayers[8]);
expect(p2p1).toBe(previousPlayers[4]);
expect(p2p2).toBe(previousPlayers[9]);
// p1 && p2 are the starting players for item3 and item4
expect(p1.previousStyles)
.toEqual({opacity: AUTO_STYLE, width: AUTO_STYLE, height: AUTO_STYLE});
expect(p2.previousStyles)
.toEqual({opacity: AUTO_STYLE, width: AUTO_STYLE, height: AUTO_STYLE});
expect(p3.previousPlayers).toEqual([]);
expect(p4.previousPlayers).toEqual([]);
// p3 && p4 are the following players for item3 and item4
expect(p3.previousStyles).toEqual({});
expect(p4.previousStyles).toEqual({});
});
it('should not remove a parent container if its contents are queried into by an ancestor element',

134
packages/core/test/animation/animations_with_web_animations_integration_spec.ts
View File

@ -5,10 +5,10 @@
* 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, state, style, transition, trigger} from '@angular/animations';
import {AnimationDriver, ɵAnimationEngine} from '@angular/animations/browser';
import {ɵWebAnimationsDriver, ɵWebAnimationsPlayer, ɵsupportsWebAnimations} from '@angular/animations/browser'
import {Component, ViewChild} from '@angular/core';
import {animate, query, state, style, transition, trigger} from '@angular/animations';
import {AnimationDriver, ɵAnimationEngine, ɵWebAnimationsDriver, ɵWebAnimationsPlayer, ɵsupportsWebAnimations} from '@angular/animations/browser';
import {AnimationGroupPlayer} from '@angular/animations/src/players/animation_group_player';
import {Component} from '@angular/core';
import {BrowserAnimationsModule} from '@angular/platform-browser/animations';
import {TestBed} from '../../testing';
@ -172,15 +172,125 @@ export function main() {
{height: '100px', offset: 0}, {height: '80px', offset: 1}
]);
});
it('should compute intermediate styles properly when an animation is cancelled', () => {
@Component({
selector: 'ani-cmp',
template: `
<div [@myAnimation]="exp">...</div>
`,
animations: [
trigger(
'myAnimation',
[
transition(
'* => a',
[
style({width: 0, height: 0}),
animate('1s', style({width: '300px', height: '600px'})),
]),
transition('* => b', [animate('1s', style({opacity: 0}))]),
]),
]
})
class Cmp {
public exp: string;
}
TestBed.configureTestingModule({declarations: [Cmp]});
const engine = TestBed.get(ɵAnimationEngine);
const fixture = TestBed.createComponent(Cmp);
const cmp = fixture.componentInstance;
cmp.exp = 'a';
fixture.detectChanges();
let player = engine.players[0] !;
let webPlayer = player.getRealPlayer() as ɵWebAnimationsPlayer;
webPlayer.setPosition(0.5);
cmp.exp = 'b';
fixture.detectChanges();
player = engine.players[0] !;
webPlayer = player.getRealPlayer() as ɵWebAnimationsPlayer;
expect(approximate(parseFloat(webPlayer.previousStyles['width'] as string), 150))
.toBeLessThan(0.05);
expect(approximate(parseFloat(webPlayer.previousStyles['height'] as string), 300))
.toBeLessThan(0.05);
});
it('should compute intermediate styles properly for multiple queried elements when an animation is cancelled',
() => {
@Component({
selector: 'ani-cmp',
template: `
<div [@myAnimation]="exp">
<div *ngFor="let item of items" class="target"></div>
</div>
`,
animations: [
trigger(
'myAnimation',
[
transition(
'* => full', [query(
'.target',
[
style({width: 0, height: 0}),
animate('1s', style({width: '500px', height: '1000px'})),
])]),
transition(
'* => empty', [query('.target', [animate('1s', style({opacity: 0}))])]),
]),
]
})
class Cmp {
public exp: string;
public items: any[] = [];
}
TestBed.configureTestingModule({declarations: [Cmp]});
const engine = TestBed.get(ɵAnimationEngine);
const fixture = TestBed.createComponent(Cmp);
const cmp = fixture.componentInstance;
cmp.exp = 'full';
cmp.items = [0, 1, 2, 3, 4];
fixture.detectChanges();
let player = engine.players[0] !;
let groupPlayer = player.getRealPlayer() as AnimationGroupPlayer;
let players = groupPlayer.players;
expect(players.length).toEqual(5);
for (let i = 0; i < players.length; i++) {
const p = players[i] as ɵWebAnimationsPlayer;
p.setPosition(0.5);
}
cmp.exp = 'empty';
cmp.items = [];
fixture.detectChanges();
player = engine.players[0];
groupPlayer = player.getRealPlayer() as AnimationGroupPlayer;
players = groupPlayer.players;
expect(players.length).toEqual(5);
for (let i = 0; i < players.length; i++) {
const p = players[i] as ɵWebAnimationsPlayer;
expect(approximate(parseFloat(p.previousStyles['width'] as string), 250))
.toBeLessThan(0.05);
expect(approximate(parseFloat(p.previousStyles['height'] as string), 500))
.toBeLessThan(0.05);
}
});
});
}
function assertStyleBetween(
element: any, prop: string, start: string | number, end: string | number) {
const style = (window.getComputedStyle(element) as any)[prop] as string;
if (typeof start == 'number' && typeof end == 'number') {
const value = parseFloat(style);
expect(value).toBeGreaterThan(start);
expect(value).toBeLessThan(end);
}
function approximate(value: number, target: number) {
return Math.abs(target - value) / value;
}