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feat(tree): add IgxTree, initial commit, #7475
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179 changes: 179 additions & 0 deletions
179
projects/igniteui-angular/src/lib/expansion-panel/toggle-animation-component.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,179 @@ | ||
| import { AnimationBuilder, AnimationPlayer, AnimationReferenceMetadata, useAnimation } from '@angular/animations'; | ||
| import { Directive, ElementRef, EventEmitter, OnDestroy } from '@angular/core'; | ||
| import { noop, Subject } from 'rxjs'; | ||
| import { growVerIn, growVerOut } from '../animations/grow'; | ||
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| /**@hidden @internal */ | ||
| export interface ToggleAnimationSettings { | ||
| openAnimation: AnimationReferenceMetadata; | ||
| closeAnimation: AnimationReferenceMetadata; | ||
| } | ||
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| export interface ToggleAnimationOwner { | ||
| animationSettings: ToggleAnimationSettings; | ||
| openAnimationStart: EventEmitter<void>; | ||
| openAnimationDone: EventEmitter<void>; | ||
| closeAnimationStart: EventEmitter<void>; | ||
| closeAnimationDone: EventEmitter<void>; | ||
| openAnimationPlayer: AnimationPlayer; | ||
| closeAnimationPlayer: AnimationPlayer; | ||
| playOpenAnimation(element: ElementRef, onDone: () => void): void; | ||
| playCloseAnimation(element: ElementRef, onDone: () => void): void; | ||
| } | ||
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| enum ANIMATION_TYPE { | ||
| OPEN = 'open', | ||
| CLOSE = 'close', | ||
| } | ||
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| /**@hidden @internal */ | ||
| @Directive() | ||
| // eslint-disable-next-line @angular-eslint/directive-class-suffix | ||
| export abstract class ToggleAnimationPlayer implements ToggleAnimationOwner, OnDestroy { | ||
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| /** @hidden @internal */ | ||
| public openAnimationDone: EventEmitter<void> = new EventEmitter(); | ||
| /** @hidden @internal */ | ||
| public closeAnimationDone: EventEmitter<void> = new EventEmitter(); | ||
| /** @hidden @internal */ | ||
| public openAnimationStart: EventEmitter<void> = new EventEmitter(); | ||
| /** @hidden @internal */ | ||
| public closeAnimationStart: EventEmitter<void> = new EventEmitter(); | ||
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| public get animationSettings(): ToggleAnimationSettings { | ||
| return this._animationSettings; | ||
| } | ||
| public set animationSettings(value: ToggleAnimationSettings) { | ||
| this._animationSettings = value; | ||
| } | ||
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| /** @hidden @internal */ | ||
| public openAnimationPlayer: AnimationPlayer = null; | ||
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| /** @hidden @internal */ | ||
| public closeAnimationPlayer: AnimationPlayer = null; | ||
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| protected destroy$: Subject<void> = new Subject(); | ||
| protected players: Map<string, AnimationPlayer> = new Map(); | ||
| protected _animationSettings: ToggleAnimationSettings = { | ||
| openAnimation: growVerIn, | ||
| closeAnimation: growVerOut | ||
| }; | ||
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| private _defaultClosedCallback = noop; | ||
| private _defaultOpenedCallback = noop; | ||
| private onClosedCallback: () => any = this._defaultClosedCallback; | ||
| private onOpenedCallback: () => any = this._defaultOpenedCallback; | ||
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| constructor(protected builder: AnimationBuilder) { | ||
| } | ||
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| /** @hidden @internal */ | ||
| public playOpenAnimation(targetElement: ElementRef, onDone?: () => void): void { | ||
| this.startPlayer(ANIMATION_TYPE.OPEN, targetElement, onDone || this._defaultOpenedCallback); | ||
| } | ||
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| /** @hidden @internal */ | ||
| public playCloseAnimation(targetElement: ElementRef, onDone?: () => void): void { | ||
| this.startPlayer(ANIMATION_TYPE.CLOSE, targetElement, onDone || this._defaultClosedCallback); | ||
| } | ||
| public ngOnDestroy() { | ||
| this.destroy$.next(); | ||
| this.destroy$.complete(); | ||
| } | ||
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| private startPlayer(type: ANIMATION_TYPE, targetElement: ElementRef, callback: () => void): void { | ||
| if (!targetElement) { // if no element is passed, there is nothing to animate | ||
| return; | ||
| } | ||
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| let target = this.getPlayer(type); | ||
| if (!target) { | ||
| target = this.initializePlayer(type, targetElement, callback); | ||
| } | ||
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| if (target.hasStarted()) { | ||
| return; | ||
| } | ||
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| const targetEmitter = type === ANIMATION_TYPE.OPEN ? this.openAnimationStart : this.closeAnimationStart; | ||
| targetEmitter.emit(); | ||
| target.play(); | ||
| } | ||
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| private initializePlayer(type: ANIMATION_TYPE, targetElement: ElementRef, callback: () => void): AnimationPlayer { | ||
| const oppositeType = type === ANIMATION_TYPE.OPEN ? ANIMATION_TYPE.CLOSE : ANIMATION_TYPE.OPEN; | ||
| const animationSettings = type === ANIMATION_TYPE.OPEN ? | ||
| this.animationSettings.openAnimation : this.animationSettings.closeAnimation; | ||
| const animation = useAnimation(animationSettings); | ||
| const animationBuilder = this.builder.build(animation); | ||
| const opposite = this.getPlayer(oppositeType); | ||
| let oppositePosition = 1; | ||
| if (opposite) { | ||
| if (opposite.hasStarted()) { | ||
| // .getPosition() still returns 0 sometimes, regardless of the fix for https://github.com/angular/angular/issues/18891; | ||
| oppositePosition = (opposite as any)._renderer.engine.players[0].getPosition(); | ||
| } | ||
| this.cleanUpPlayer(oppositeType); | ||
| } | ||
| if (type === ANIMATION_TYPE.OPEN) { | ||
| this.openAnimationPlayer = animationBuilder.create(targetElement.nativeElement); | ||
| } else if (type === ANIMATION_TYPE.CLOSE) { | ||
| this.closeAnimationPlayer = animationBuilder.create(targetElement.nativeElement); | ||
| } | ||
| const target = this.getPlayer(type); | ||
| target.init(); | ||
| this.getPlayer(type).setPosition(1 - oppositePosition); | ||
| if (type === ANIMATION_TYPE.OPEN) { | ||
| this.onOpenedCallback = callback; | ||
| } else if (type === ANIMATION_TYPE.CLOSE) { | ||
| this.onClosedCallback = callback; | ||
| } | ||
| const targetCallback = type === ANIMATION_TYPE.OPEN ? this.onOpenedCallback : this.onClosedCallback; | ||
| const targetEmitter = type === ANIMATION_TYPE.OPEN ? this.openAnimationDone : this.closeAnimationDone; | ||
| target.onDone(() => { | ||
| targetCallback(); | ||
| targetEmitter.emit(); | ||
| this.cleanUpPlayer(type); | ||
| }); | ||
| return target; | ||
| } | ||
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| private cleanUpPlayer(target: ANIMATION_TYPE) { | ||
| switch (target) { | ||
| case ANIMATION_TYPE.CLOSE: | ||
| if (this.closeAnimationPlayer != null) { | ||
| this.closeAnimationPlayer.reset(); | ||
| this.closeAnimationPlayer.destroy(); | ||
| this.closeAnimationPlayer = null; | ||
| } | ||
| this.onClosedCallback = this._defaultClosedCallback; | ||
| break; | ||
| case ANIMATION_TYPE.OPEN: | ||
| if (this.openAnimationPlayer != null) { | ||
| this.openAnimationPlayer.reset(); | ||
| this.openAnimationPlayer.destroy(); | ||
| this.openAnimationPlayer = null; | ||
| } | ||
| this.onOpenedCallback = this._defaultOpenedCallback; | ||
| break; | ||
| default: | ||
| break; | ||
| } | ||
| } | ||
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| private getPlayer(type: ANIMATION_TYPE): AnimationPlayer { | ||
| switch (type) { | ||
| case ANIMATION_TYPE.OPEN: | ||
| return this.openAnimationPlayer; | ||
| case ANIMATION_TYPE.CLOSE: | ||
| return this.closeAnimationPlayer; | ||
| default: | ||
| return null; | ||
| } | ||
| } | ||
| } |
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