/**
 * @license
 * Copyright Endlessjs. All Rights Reserved.
 * Licensed under the MIT License. See License.txt in the project root for license information.
 */
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var __param = (this && this.__param) || function (paramIndex, decorator) {
    return function (target, key) { decorator(target, key, paramIndex); }
};
import { Component, ChangeDetectionStrategy, Host, HostBinding, HostListener, ChangeDetectorRef, } from '@angular/core';
import { trigger, state, style, animate, transition } from '@angular/animations';
import { takeWhile } from 'rxjs/operators';
import { ElAccordionItemComponent } from './accordion-item.component';
/**
 * Component intended to be used within `<el-accordion-item>` component
 */
let ElAccordionItemHeaderComponent = class ElAccordionItemHeaderComponent {
    constructor(accordionItem, cd) {
        this.accordionItem = accordionItem;
        this.cd = cd;
        this.alive = true;
    }
    get isCollapsed() {
        return this.accordionItem.collapsed;
    }
    get expanded() {
        return !this.accordionItem.collapsed;
    }
    // issue #794
    get tabbable() {
        return this.accordionItem.disabled ? '-1' : '0';
    }
    get disabled() {
        return this.accordionItem.disabled;
    }
    toggle() {
        this.accordionItem.toggle();
    }
    get state() {
        if (this.isCollapsed) {
            return 'collapsed';
        }
        if (this.expanded) {
            return 'expanded';
        }
    }
    ngOnInit() {
        this.accordionItem.accordionItemInvalidate
            .pipe(takeWhile(() => this.alive))
            .subscribe(() => this.cd.markForCheck());
    }
    ngOnDestroy() {
        this.alive = false;
    }
};
__decorate([
    HostBinding('class.accordion-item-header-collapsed'),
    __metadata("design:type", Boolean),
    __metadata("design:paramtypes", [])
], ElAccordionItemHeaderComponent.prototype, "isCollapsed", null);
__decorate([
    HostBinding('class.accordion-item-header-expanded'),
    HostBinding('attr.aria-expanded'),
    __metadata("design:type", Boolean),
    __metadata("design:paramtypes", [])
], ElAccordionItemHeaderComponent.prototype, "expanded", null);
__decorate([
    HostBinding('attr.tabindex'),
    __metadata("design:type", String),
    __metadata("design:paramtypes", [])
], ElAccordionItemHeaderComponent.prototype, "tabbable", null);
__decorate([
    HostBinding('attr.aria-disabled'),
    __metadata("design:type", Boolean),
    __metadata("design:paramtypes", [])
], ElAccordionItemHeaderComponent.prototype, "disabled", null);
__decorate([
    HostListener('click'),
    __metadata("design:type", Function),
    __metadata("design:paramtypes", []),
    __metadata("design:returntype", void 0)
], ElAccordionItemHeaderComponent.prototype, "toggle", null);
ElAccordionItemHeaderComponent = __decorate([
    Component({
        selector: 'el-accordion-item-header',
        template: `
    <ng-content select="el-accordion-item-title"></ng-content>
    <ng-content select="el-accordion-item-description"></ng-content>
    <ng-content></ng-content>
    <el-icon icon="chevron-down-outline"
             pack="endlessjs-essentials"
             [@expansionIndicator]="state"
             *ngIf="!disabled"
             class="expansion-indicator">
    </el-icon>
  `,
        animations: [
            trigger('expansionIndicator', [
                state('expanded', style({
                    transform: 'rotate(180deg)',
                })),
                transition('collapsed => expanded', animate('100ms ease-in')),
                transition('expanded => collapsed', animate('100ms ease-out')),
            ]),
        ],
        changeDetection: ChangeDetectionStrategy.OnPush,
        styles: [":host{display:flex;align-items:center;cursor:pointer}:host:focus{outline:0}\n"]
    }),
    __param(0, Host()),
    __metadata("design:paramtypes", [ElAccordionItemComponent, ChangeDetectorRef])
], ElAccordionItemHeaderComponent);
export { ElAccordionItemHeaderComponent };
//# sourceMappingURL=accordion-item-header.component.js.map