613 lines
25 KiB
TypeScript
613 lines
25 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {StyleData} from '../../src/common/style_data';
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import {Animation} from '../../src/dsl/animation';
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import {AUTO_STYLE, AnimationMetadata, animate, group, keyframes, sequence, style} from '../../src/dsl/animation_metadata';
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import {AnimationTimelineInstruction} from '../../src/dsl/animation_timeline_instruction';
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import {validateAnimationSequence} from '../../src/dsl/animation_validator_visitor';
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export function main() {
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describe('Animation', () => {
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describe('validation', () => {
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it('should throw an error if one or more but not all keyframes() styles contain offsets',
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() => {
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const steps = animate(1000, keyframes([
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style({opacity: 0}),
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style({opacity: 1, offset: 1}),
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]));
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expect(() => { validateAndThrowAnimationSequence(steps); })
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.toThrowError(
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/Not all style\(\) steps within the declared keyframes\(\) contain offsets/);
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});
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it('should throw an error if not all offsets are between 0 and 1', () => {
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let steps = animate(1000, keyframes([
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style({opacity: 0, offset: -1}),
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style({opacity: 1, offset: 1}),
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]));
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expect(() => {
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validateAndThrowAnimationSequence(steps);
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}).toThrowError(/Please ensure that all keyframe offsets are between 0 and 1/);
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steps = animate(1000, keyframes([
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style({opacity: 0, offset: 0}),
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style({opacity: 1, offset: 1.1}),
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]));
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expect(() => {
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validateAndThrowAnimationSequence(steps);
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}).toThrowError(/Please ensure that all keyframe offsets are between 0 and 1/);
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});
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it('should throw an error if a smaller offset shows up after a bigger one', () => {
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let steps = animate(1000, keyframes([
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style({opacity: 0, offset: 1}),
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style({opacity: 1, offset: 0}),
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]));
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expect(() => {
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validateAndThrowAnimationSequence(steps);
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}).toThrowError(/Please ensure that all keyframe offsets are in order/);
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});
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it('should throw an error if any styles overlap during parallel animations', () => {
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const steps = group([
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sequence([
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// 0 -> 2000ms
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style({opacity: 0}), animate('500ms', style({opacity: .25})),
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animate('500ms', style({opacity: .5})), animate('500ms', style({opacity: .75})),
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animate('500ms', style({opacity: 1}))
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]),
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animate('1s 500ms', keyframes([
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// 0 -> 1500ms
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style({width: 0}),
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style({opacity: 1, width: 1000}),
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]))
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]);
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expect(() => { validateAndThrowAnimationSequence(steps); })
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.toThrowError(
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/The CSS property "opacity" that exists between the times of "0ms" and "2000ms" is also being animated in a parallel animation between the times of "0ms" and "1500ms"/);
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});
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it('should throw an error if an animation time is invalid', () => {
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const steps = [animate('500xs', style({opacity: 1}))];
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expect(() => {
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validateAndThrowAnimationSequence(steps);
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}).toThrowError(/The provided timing value "500xs" is invalid/);
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const steps2 = [animate('500ms 500ms 500ms ease-out', style({opacity: 1}))];
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expect(() => {
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validateAndThrowAnimationSequence(steps2);
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}).toThrowError(/The provided timing value "500ms 500ms 500ms ease-out" is invalid/);
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});
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});
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describe('keyframe building', () => {
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describe('style() / animate()', () => {
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it('should produce a balanced series of keyframes given a sequence of animate steps',
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() => {
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const steps = [
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style({width: 0}), animate(1000, style({height: 50})),
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animate(1000, style({width: 100})), animate(1000, style({height: 150})),
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animate(1000, style({width: 200}))
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];
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const players = invokeAnimationSequence(steps);
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expect(players[0].keyframes).toEqual([
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{height: AUTO_STYLE, width: 0, offset: 0},
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{height: 50, width: 0, offset: .25},
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{height: 50, width: 100, offset: .5},
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{height: 150, width: 100, offset: .75},
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{height: 150, width: 200, offset: 1},
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]);
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});
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it('should fill in missing starting steps when a starting `style()` value is not used',
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() => {
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const steps = [animate(1000, style({width: 999}))];
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const players = invokeAnimationSequence(steps);
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expect(players[0].keyframes).toEqual([
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{width: AUTO_STYLE, offset: 0}, {width: 999, offset: 1}
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]);
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});
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it('should merge successive style() calls together before an animate() call', () => {
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const steps = [
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style({width: 0}), style({height: 0}), style({width: 200}), style({opacity: 0}),
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animate(1000, style({width: 100, height: 400, opacity: 1}))
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];
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const players = invokeAnimationSequence(steps);
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expect(players[0].keyframes).toEqual([
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{width: 200, height: 0, opacity: 0, offset: 0},
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{width: 100, height: 400, opacity: 1, offset: 1}
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]);
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});
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it('should not merge in successive style() calls to the previous animate() keyframe',
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() => {
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const steps = [
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style({opacity: 0}), animate(1000, style({opacity: .5})), style({opacity: .6}),
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animate(1000, style({opacity: 1}))
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];
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const players = invokeAnimationSequence(steps);
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const keyframes = humanizeOffsets(players[0].keyframes, 4);
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expect(keyframes).toEqual([
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{opacity: 0, offset: 0},
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{opacity: .5, offset: .4998},
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{opacity: .6, offset: .5002},
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{opacity: 1, offset: 1},
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]);
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});
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it('should support an easing value that uses cubic-bezier(...)', () => {
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const steps = [
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style({opacity: 0}),
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animate('1s cubic-bezier(.29, .55 ,.53 ,1.53)', style({opacity: 1}))
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];
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const player = invokeAnimationSequence(steps)[0];
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const lastKeyframe = player.keyframes[1];
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const lastKeyframeEasing = <string>lastKeyframe['easing'];
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expect(lastKeyframeEasing.replace(/\s+/g, '')).toEqual('cubic-bezier(.29,.55,.53,1.53)');
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});
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});
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describe('sequence()', () => {
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it('should not produce extra timelines when multiple sequences are used within each other',
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() => {
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const steps = [
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style({width: 0}), animate(1000, style({width: 100})), sequence([
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animate(1000, style({width: 200})),
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sequence([animate(1000, style({width: 300}))])
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]),
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animate(1000, style({width: 400})), sequence([animate(1000, style({width: 500}))])
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];
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const players = invokeAnimationSequence(steps);
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expect(players[0].keyframes).toEqual([
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{width: 0, offset: 0}, {width: 100, offset: .2}, {width: 200, offset: .4},
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{width: 300, offset: .6}, {width: 400, offset: .8}, {width: 500, offset: 1}
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]);
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});
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it('should produce a 1ms animation step if a style call exists before sequence within a call to animate()',
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() => {
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const steps = [
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style({width: 100}), sequence([
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animate(1000, style({width: 200})),
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])
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];
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const players = invokeAnimationSequence(steps);
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expect(humanizeOffsets(players[0].keyframes, 4)).toEqual([
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{width: 100, offset: 0}, {width: 100, offset: .001}, {width: 200, offset: 1}
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]);
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});
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it('should create a new timeline after a sequence if group() or keyframe() commands are used within',
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() => {
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const steps = [
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style({width: 100, height: 100}), animate(1000, style({width: 150, height: 150})),
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sequence([
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group([
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animate(1000, style({height: 200})),
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]),
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animate(1000, keyframes([style({width: 180}), style({width: 200})]))
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]),
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animate(1000, style({width: 500, height: 500}))
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];
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const players = invokeAnimationSequence(steps);
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expect(players.length).toEqual(4);
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const finalPlayer = players[players.length - 1];
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expect(finalPlayer.keyframes).toEqual([
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{width: 200, height: 200, offset: 0}, {width: 500, height: 500, offset: 1}
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]);
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});
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});
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describe('keyframes()', () => {
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it('should produce a sub timeline when `keyframes()` is used within a sequence', () => {
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const steps = [
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animate(1000, style({opacity: .5})), animate(1000, style({opacity: 1})),
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animate(
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1000, keyframes([style({height: 0}), style({height: 100}), style({height: 50})])),
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animate(1000, style({height: 0, opacity: 0}))
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];
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const players = invokeAnimationSequence(steps);
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expect(players.length).toEqual(3);
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const player0 = players[0];
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expect(player0.delay).toEqual(0);
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expect(player0.keyframes).toEqual([
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{opacity: AUTO_STYLE, offset: 0},
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{opacity: .5, offset: .5},
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{opacity: 1, offset: 1},
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]);
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const subPlayer = players[1];
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expect(subPlayer.delay).toEqual(2000);
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expect(subPlayer.keyframes).toEqual([
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{height: 0, offset: 0},
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{height: 100, offset: .5},
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{height: 50, offset: 1},
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]);
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const player1 = players[2];
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expect(player1.delay).toEqual(3000);
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expect(player1.keyframes).toEqual([
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{opacity: 1, height: 50, offset: 0}, {opacity: 0, height: 0, offset: 1}
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]);
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});
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it('should propagate inner keyframe style data to the parent timeline if used afterwards',
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() => {
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const steps = [
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style({opacity: 0}), animate(1000, style({opacity: .5})),
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animate(1000, style({opacity: 1})), animate(1000, keyframes([
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style({color: 'red'}),
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style({color: 'blue'}),
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])),
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animate(1000, style({color: 'green', opacity: 0}))
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];
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const players = invokeAnimationSequence(steps);
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const finalPlayer = players[players.length - 1];
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expect(finalPlayer.keyframes).toEqual([
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{opacity: 1, color: 'blue', offset: 0}, {opacity: 0, color: 'green', offset: 1}
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]);
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});
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it('should feed in starting data into inner keyframes if used in an style step beforehand',
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() => {
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const steps = [
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animate(1000, style({opacity: .5})), animate(1000, keyframes([
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style({opacity: .8, offset: .5}),
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style({opacity: 1, offset: 1}),
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]))
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];
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const players = invokeAnimationSequence(steps);
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expect(players.length).toEqual(2);
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const topPlayer = players[0];
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expect(topPlayer.keyframes).toEqual([
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{opacity: AUTO_STYLE, offset: 0}, {opacity: .5, offset: 1}
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]);
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const subPlayer = players[1];
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expect(subPlayer.keyframes).toEqual([
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{opacity: .5, offset: 0}, {opacity: .8, offset: 0.5}, {opacity: 1, offset: 1}
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]);
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});
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it('should set the easing value as an easing value for the entire timeline', () => {
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const steps = [
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style({opacity: 0}), animate(1000, style({opacity: .5})),
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animate(
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'1s ease-out',
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keyframes([style({opacity: .8, offset: .5}), style({opacity: 1, offset: 1})]))
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];
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const player = invokeAnimationSequence(steps)[1];
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expect(player.easing).toEqual('ease-out');
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});
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it('should combine the starting time + the given delay as the delay value for the animated keyframes',
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() => {
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const steps = [
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style({opacity: 0}), animate(500, style({opacity: .5})),
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animate(
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'1s 2s ease-out',
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keyframes([style({opacity: .8, offset: .5}), style({opacity: 1, offset: 1})]))
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];
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const player = invokeAnimationSequence(steps)[1];
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expect(player.delay).toEqual(2500);
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});
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it('should not leak in additional styles used later on after keyframe styles have already been declared',
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() => {
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const steps = [
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animate(1000, style({height: '50px'})),
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animate(
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2000, keyframes([
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style({left: '0', transform: 'rotate(0deg)', offset: 0}),
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style({
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left: '40%',
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transform: 'rotate(250deg) translateY(-200px)',
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offset: .33
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}),
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style(
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{left: '60%', transform: 'rotate(180deg) translateY(200px)', offset: .66}),
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style({left: 'calc(100% - 100px)', transform: 'rotate(0deg)', offset: 1}),
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])),
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group([animate('2s', style({width: '200px'}))]),
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animate('2s', style({height: '300px'})),
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group([animate('2s', style({height: '500px', width: '500px'}))])
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];
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const players = invokeAnimationSequence(steps);
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expect(players.length).toEqual(5);
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const firstPlayerKeyframes = players[0].keyframes;
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expect(firstPlayerKeyframes[0]['width']).toBeFalsy();
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expect(firstPlayerKeyframes[1]['width']).toBeFalsy();
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expect(firstPlayerKeyframes[0]['height']).toEqual(AUTO_STYLE);
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expect(firstPlayerKeyframes[1]['height']).toEqual('50px');
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const keyframePlayerKeyframes = players[1].keyframes;
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expect(keyframePlayerKeyframes[0]['width']).toBeFalsy();
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expect(keyframePlayerKeyframes[0]['height']).toBeFalsy();
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const groupPlayerKeyframes = players[2].keyframes;
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expect(groupPlayerKeyframes[0]['width']).toEqual(AUTO_STYLE);
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expect(groupPlayerKeyframes[1]['width']).toEqual('200px');
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expect(groupPlayerKeyframes[0]['height']).toBeFalsy();
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expect(groupPlayerKeyframes[1]['height']).toBeFalsy();
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const secondToFinalAnimatePlayerKeyframes = players[3].keyframes;
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expect(secondToFinalAnimatePlayerKeyframes[0]['width']).toBeFalsy();
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expect(secondToFinalAnimatePlayerKeyframes[1]['width']).toBeFalsy();
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expect(secondToFinalAnimatePlayerKeyframes[0]['height']).toEqual('50px');
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expect(secondToFinalAnimatePlayerKeyframes[1]['height']).toEqual('300px');
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const finalAnimatePlayerKeyframes = players[4].keyframes;
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expect(finalAnimatePlayerKeyframes[0]['width']).toEqual('200px');
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expect(finalAnimatePlayerKeyframes[1]['width']).toEqual('500px');
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expect(finalAnimatePlayerKeyframes[0]['height']).toEqual('300px');
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expect(finalAnimatePlayerKeyframes[1]['height']).toEqual('500px');
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});
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});
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describe('group()', () => {
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it('should properly tally style data within a group() for use in a follow-up animate() step',
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() => {
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const steps = [
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style({width: 0, height: 0}), animate(1000, style({width: 20, height: 50})),
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group([animate('1s 1s', style({width: 200})), animate('1s', style({height: 500}))]),
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animate(1000, style({width: 1000, height: 1000}))
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];
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const players = invokeAnimationSequence(steps);
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expect(players.length).toEqual(4);
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const player0 = players[0];
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expect(player0.duration).toEqual(1000);
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expect(player0.keyframes).toEqual([
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{width: 0, height: 0, offset: 0}, {width: 20, height: 50, offset: 1}
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]);
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const gPlayer1 = players[1];
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expect(gPlayer1.duration).toEqual(2000);
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expect(gPlayer1.delay).toEqual(1000);
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expect(gPlayer1.keyframes).toEqual([
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{width: 20, offset: 0}, {width: 20, offset: .5}, {width: 200, offset: 1}
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]);
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const gPlayer2 = players[2];
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expect(gPlayer2.duration).toEqual(1000);
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expect(gPlayer2.delay).toEqual(1000);
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expect(gPlayer2.keyframes).toEqual([
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{height: 50, offset: 0}, {height: 500, offset: 1}
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]);
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const player1 = players[3];
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expect(player1.duration).toEqual(1000);
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expect(player1.delay).toEqual(3000);
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expect(player1.keyframes).toEqual([
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{width: 200, height: 500, offset: 0}, {width: 1000, height: 1000, offset: 1}
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]);
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});
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it('should support groups with nested sequences', () => {
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const steps = [group([
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sequence([
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style({opacity: 0}),
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animate(1000, style({opacity: 1})),
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]),
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sequence([
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style({width: 0}),
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animate(1000, style({width: 200})),
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])
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])];
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const players = invokeAnimationSequence(steps);
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expect(players.length).toEqual(2);
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const gPlayer1 = players[0];
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expect(gPlayer1.delay).toEqual(0);
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expect(gPlayer1.keyframes).toEqual([
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{opacity: 0, offset: 0},
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{opacity: 1, offset: 1},
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]);
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const gPlayer2 = players[1];
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expect(gPlayer1.delay).toEqual(0);
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expect(gPlayer2.keyframes).toEqual([{width: 0, offset: 0}, {width: 200, offset: 1}]);
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});
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it('should respect delays after group entries', () => {
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const steps = [
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style({width: 0, height: 0}), animate(1000, style({width: 50, height: 50})), group([
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animate(1000, style({width: 100})),
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animate(1000, style({height: 100})),
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]),
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animate('1s 1s', style({height: 200, width: 200}))
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];
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const players = invokeAnimationSequence(steps);
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expect(players.length).toEqual(4);
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const finalPlayer = players[players.length - 1];
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expect(finalPlayer.delay).toEqual(2000);
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expect(finalPlayer.duration).toEqual(2000);
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expect(finalPlayer.keyframes).toEqual([
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{width: 100, height: 100, offset: 0},
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{width: 100, height: 100, offset: .5},
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{width: 200, height: 200, offset: 1},
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]);
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});
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it('should respect delays after multiple calls to group()', () => {
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const steps = [
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group([animate('2s', style({opacity: 1})), animate('2s', style({width: '100px'}))]),
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animate(2000, style({width: 0, opacity: 0})),
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group([animate('2s', style({opacity: 1})), animate('2s', style({width: '200px'}))]),
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animate(2000, style({width: 0, opacity: 0}))
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];
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const players = invokeAnimationSequence(steps);
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const middlePlayer = players[2];
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expect(middlePlayer.delay).toEqual(2000);
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expect(middlePlayer.duration).toEqual(2000);
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const finalPlayer = players[players.length - 1];
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expect(finalPlayer.delay).toEqual(6000);
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expect(finalPlayer.duration).toEqual(2000);
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});
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});
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|
|
describe('timing values', () => {
|
|
it('should properly combine an easing value with a delay into a set of three keyframes',
|
|
() => {
|
|
const steps: AnimationMetadata[] =
|
|
[style({opacity: 0}), animate('3s 1s ease-out', style({opacity: 1}))];
|
|
|
|
const player = invokeAnimationSequence(steps)[0];
|
|
expect(player.keyframes).toEqual([
|
|
{opacity: 0, offset: 0}, {opacity: 0, offset: .25},
|
|
{opacity: 1, offset: 1, easing: 'ease-out'}
|
|
]);
|
|
});
|
|
|
|
it('should allow easing values to exist for each animate() step', () => {
|
|
const steps: AnimationMetadata[] = [
|
|
style({width: 0}), animate('1s linear', style({width: 10})),
|
|
animate('2s ease-out', style({width: 20})), animate('1s ease-in', style({width: 30}))
|
|
];
|
|
|
|
const players = invokeAnimationSequence(steps);
|
|
expect(players.length).toEqual(1);
|
|
|
|
const player = players[0];
|
|
expect(player.keyframes).toEqual([
|
|
{width: 0, offset: 0}, {width: 10, offset: .25, easing: 'linear'},
|
|
{width: 20, offset: .75, easing: 'ease-out'},
|
|
{width: 30, offset: 1, easing: 'ease-in'}
|
|
]);
|
|
});
|
|
|
|
it('should produce a top-level timeline only for the duration that is set as before a group kicks in',
|
|
() => {
|
|
const steps: AnimationMetadata[] = [
|
|
style({width: 0, height: 0, opacity: 0}),
|
|
animate('1s', style({width: 100, height: 100, opacity: .2})), group([
|
|
animate('500ms 1s', style({width: 500})), animate('1s', style({height: 500})),
|
|
sequence([
|
|
animate(500, style({opacity: .5})),
|
|
animate(500, style({opacity: .6})),
|
|
animate(500, style({opacity: .7})),
|
|
animate(500, style({opacity: 1})),
|
|
])
|
|
])
|
|
];
|
|
|
|
const player = invokeAnimationSequence(steps)[0];
|
|
expect(player.duration).toEqual(1000);
|
|
expect(player.delay).toEqual(0);
|
|
});
|
|
|
|
it('should offset group() and keyframe() timelines with a delay which is the current time of the previous player when called',
|
|
() => {
|
|
const steps: AnimationMetadata[] = [
|
|
style({width: 0, height: 0}),
|
|
animate('1500ms linear', style({width: 10, height: 10})), group([
|
|
animate(1000, style({width: 500, height: 500})),
|
|
animate(2000, style({width: 500, height: 500}))
|
|
]),
|
|
animate(1000, keyframes([
|
|
style({width: 200}),
|
|
style({width: 500}),
|
|
]))
|
|
];
|
|
|
|
const players = invokeAnimationSequence(steps);
|
|
expect(players[0].delay).toEqual(0); // top-level animation
|
|
expect(players[1].delay).toEqual(1500); // first entry in group()
|
|
expect(players[2].delay).toEqual(1500); // second entry in group()
|
|
expect(players[3].delay).toEqual(3500); // animate(...keyframes())
|
|
});
|
|
});
|
|
|
|
describe('state based data', () => {
|
|
it('should create an empty animation if there are zero animation steps', () => {
|
|
const steps: AnimationMetadata[] = [];
|
|
|
|
const fromStyles: StyleData[] = [{background: 'blue', height: 100}];
|
|
|
|
const toStyles: StyleData[] = [{background: 'red'}];
|
|
|
|
const player = invokeAnimationSequence(steps, fromStyles, toStyles)[0];
|
|
expect(player.duration).toEqual(0);
|
|
expect(player.keyframes).toEqual([]);
|
|
});
|
|
|
|
it('should produce an animation from start to end between the to and from styles if there are animate steps in between',
|
|
() => {
|
|
const steps: AnimationMetadata[] = [animate(1000)];
|
|
|
|
const fromStyles: StyleData[] = [{background: 'blue', height: 100}];
|
|
|
|
const toStyles: StyleData[] = [{background: 'red'}];
|
|
|
|
const players = invokeAnimationSequence(steps, fromStyles, toStyles);
|
|
expect(players[0].keyframes).toEqual([
|
|
{background: 'blue', height: 100, offset: 0},
|
|
{background: 'red', height: AUTO_STYLE, offset: 1}
|
|
]);
|
|
});
|
|
});
|
|
});
|
|
});
|
|
}
|
|
|
|
function humanizeOffsets(keyframes: StyleData[], digits: number = 3): StyleData[] {
|
|
return keyframes.map(keyframe => {
|
|
keyframe['offset'] = Number(parseFloat(<any>keyframe['offset']).toFixed(digits));
|
|
return keyframe;
|
|
});
|
|
}
|
|
|
|
function invokeAnimationSequence(
|
|
steps: AnimationMetadata | AnimationMetadata[], startingStyles: StyleData[] = [],
|
|
destinationStyles: StyleData[] = []): AnimationTimelineInstruction[] {
|
|
return new Animation(steps).buildTimelines(startingStyles, destinationStyles);
|
|
}
|
|
|
|
function validateAndThrowAnimationSequence(steps: AnimationMetadata | AnimationMetadata[]) {
|
|
const ast =
|
|
Array.isArray(steps) ? sequence(<AnimationMetadata[]>steps) : <AnimationMetadata>steps;
|
|
const errors = validateAnimationSequence(ast);
|
|
if (errors.length) {
|
|
throw new Error(errors.join('\n'));
|
|
}
|
|
}
|