fix(animations): make sure @.disabled works in non-animation components
Note 4.3 only! Prior to this fix when [@.disabled] was used in a component that contained zero animation code it wouldn't register properly because the renderer associated with that component was not an animation renderer. This patch ensures that it gets registered even when there are no animations set.
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@ -67,20 +67,17 @@ export class AnimationEngine {
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this._transitionEngine.removeNode(namespaceId, element, context);
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}
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process(namespaceId: string, element: any, property: string, value: any): boolean {
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switch (property.charAt(0)) {
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case '.':
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if (property == '.disabled') {
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this._transitionEngine.markElementAsDisabled(element, !!value);
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disableAnimations(element: any, disable: boolean) {
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this._transitionEngine.markElementAsDisabled(element, disable);
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}
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return false;
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case '@':
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process(namespaceId: string, element: any, property: string, value: any) {
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if (property.charAt(0) == '@') {
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const [id, action] = parseTimelineCommand(property);
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const args = value as any[];
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this._timelineEngine.command(id, element, action, args);
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return false;
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default:
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return this._transitionEngine.trigger(namespaceId, element, property, value);
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} else {
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this._transitionEngine.trigger(namespaceId, element, property, value);
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}
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}
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@ -2281,6 +2281,57 @@ export function main() {
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expect(cmp.startEvent.totalTime).toEqual(9876);
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// the done event isn't fired because it's an actual animation
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}));
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it('should work when there are no animations on the component handling the disable/enable flag',
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() => {
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@Component({
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selector: 'parent-cmp',
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template: `
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<div [@.disabled]="disableExp">
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<child-cmp #child></child-cmp>
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</div>
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`
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})
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class ParentCmp {
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@ViewChild('child') public child: ChildCmp|null = null;
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disableExp = false;
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}
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@Component({
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selector: 'child-cmp',
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template: `
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<div [@myAnimation]="exp"></div>
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`,
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animations: [trigger(
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'myAnimation',
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[transition(
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'* => go, * => goAgain',
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[style({opacity: 0}), animate('1s', style({opacity: 1}))])])]
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})
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class ChildCmp {
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public exp = '';
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}
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TestBed.configureTestingModule({declarations: [ParentCmp, ChildCmp]});
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const fixture = TestBed.createComponent(ParentCmp);
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const cmp = fixture.componentInstance;
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cmp.disableExp = true;
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fixture.detectChanges();
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resetLog();
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const child = cmp.child !;
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child.exp = 'go';
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fixture.detectChanges();
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expect(getLog().length).toEqual(0);
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resetLog();
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cmp.disableExp = false;
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child.exp = 'goAgain';
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fixture.detectChanges();
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expect(getLog().length).toEqual(1);
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});
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});
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});
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@ -9,6 +9,9 @@ import {AnimationTriggerMetadata} from '@angular/animations';
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import {ɵAnimationEngine as AnimationEngine} from '@angular/animations/browser';
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import {Injectable, NgZone, Renderer2, RendererFactory2, RendererStyleFlags2, RendererType2} from '@angular/core';
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const ANIMATION_PREFIX = '@';
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const DISABLE_ANIMATIONS_FLAG = '@.disabled';
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@Injectable()
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export class AnimationRendererFactory implements RendererFactory2 {
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private _currentId: number = 0;
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@ -174,14 +177,22 @@ export class BaseAnimationRenderer implements Renderer2 {
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}
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setProperty(el: any, name: string, value: any): void {
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if (name.charAt(0) == ANIMATION_PREFIX && name == DISABLE_ANIMATIONS_FLAG) {
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this.disableAnimations(el, !!value);
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} else {
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this.delegate.setProperty(el, name, value);
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}
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}
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setValue(node: any, value: string): void { this.delegate.setValue(node, value); }
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listen(target: any, eventName: string, callback: (event: any) => boolean | void): () => void {
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return this.delegate.listen(target, eventName, callback);
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}
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protected disableAnimations(element: any, value: boolean) {
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this.engine.disableAnimations(element, value);
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}
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}
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export class AnimationRenderer extends BaseAnimationRenderer implements Renderer2 {
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@ -193,9 +204,12 @@ export class AnimationRenderer extends BaseAnimationRenderer implements Renderer
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}
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setProperty(el: any, name: string, value: any): void {
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if (name.charAt(0) == '@') {
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name = name.substr(1);
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this.engine.process(this.namespaceId, el, name, value);
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if (name.charAt(0) == ANIMATION_PREFIX) {
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if (name.charAt(1) == '.' && name == DISABLE_ANIMATIONS_FLAG) {
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this.disableAnimations(el, !!value);
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} else {
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this.engine.process(this.namespaceId, el, name.substr(1), value);
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}
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} else {
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this.delegate.setProperty(el, name, value);
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}
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@ -203,11 +217,13 @@ export class AnimationRenderer extends BaseAnimationRenderer implements Renderer
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listen(target: 'window'|'document'|'body'|any, eventName: string, callback: (event: any) => any):
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() => void {
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if (eventName.charAt(0) == '@') {
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if (eventName.charAt(0) == ANIMATION_PREFIX) {
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const element = resolveElementFromTarget(target);
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let name = eventName.substr(1);
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let phase = '';
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if (name.charAt(0) != '@') { // transition-specific
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// @listener.phase is for trigger animation callbacks
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// @@listener is for animation builder callbacks
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if (name.charAt(0) != ANIMATION_PREFIX) {
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[name, phase] = parseTriggerCallbackName(name);
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}
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return this.engine.listen(this.namespaceId, element, name, phase, event => {
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