BookStack/resources/js/components/collapsible.js

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import {slideDown, slideUp} from '../services/animations';
import {Component} from './component';
/**
* Collapsible
* Provides some simple logic to allow collapsible sections.
*/
export class Collapsible extends Component {
setup() {
this.container = this.$el;
this.trigger = this.$refs.trigger;
this.content = this.$refs.content;
if (this.trigger) {
this.trigger.addEventListener('click', this.toggle.bind(this));
this.openIfContainsError();
}
}
open() {
this.container.classList.add('open');
this.trigger.setAttribute('aria-expanded', 'true');
slideDown(this.content, 300);
}
close() {
this.container.classList.remove('open');
this.trigger.setAttribute('aria-expanded', 'false');
slideUp(this.content, 300);
}
toggle() {
if (this.container.classList.contains('open')) {
this.close();
} else {
this.open();
}
}
openIfContainsError() {
const error = this.content.querySelector('.text-neg.text-small');
if (error) {
this.open();
}
}
}