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/**
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import {Directive, EventEmitter, HostBinding, HostListener, Input, Output, TemplateRef, ViewContainerRef} from '@angular/core';
@Directive({
selector: '[appCdkDetailRow]'
})
export class CdkDetailRowDirective {
private row: any;
private tRef: TemplateRef<any>;
private opened: boolean;
@HostBinding('class.expanded')
get expended(): boolean {
return this.opened;
}
@Input()
set appCdkDetailRow(value: any) {
if (value !== this.row) {
this.row = value;
// this.render();
}
}
@Input('appCdkDetailRowTpl')
set template(value: TemplateRef<any>) {
if (value !== this.tRef) {
this.tRef = value;
}
}
@Output() toggleChange = new EventEmitter<CdkDetailRowDirective>();
constructor(public vcRef: ViewContainerRef) { }
@HostListener('click')
onClick(): void {
this.toggle();
}
toggle(): void {
if (this.opened) {
this.vcRef.clear();
} else {
this.render();
}
this.opened = this.vcRef.length > 0;
this.toggleChange.emit(this);
}
private render(): void {
this.vcRef.clear();
if (this.tRef && this.row) {
this.vcRef.createEmbeddedView(this.tRef, { $implicit: this.row });
}
}
}
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