+import {slideUp, slideDown} from "../services/animations";
class ChapterToggle {
open() {
const list = this.elem.parentNode.querySelector('.inset-list');
-
this.elem.classList.add('open');
- list.style.display = 'block';
- list.style.maxHeight = '';
- const maxHeight = list.getBoundingClientRect().height + 10;
- list.style.maxHeight = '0px';
- list.style.overflow = 'hidden';
- list.style.transition = 'max-height ease-in-out 240ms';
-
- let transitionEndBound = onTransitionEnd.bind(this);
- function onTransitionEnd() {
- list.style.overflow = '';
- list.style.maxHeight = '';
- list.style.transition = '';
- list.style.display = `block`;
- list.removeEventListener('transitionend', transitionEndBound);
- }
-
- setTimeout(() => {
- requestAnimationFrame(() => {
- list.style.maxHeight = `${maxHeight}px`;
- list.addEventListener('transitionend', transitionEndBound)
- });
- }, 1);
+ this.elem.setAttribute('aria-expanded', 'true');
+ slideDown(list, 240);
}
close() {
const list = this.elem.parentNode.querySelector('.inset-list');
-
- list.style.display = 'block';
this.elem.classList.remove('open');
- list.style.maxHeight = list.getBoundingClientRect().height + 'px';
- list.style.overflow = 'hidden';
- list.style.transition = 'max-height ease-in-out 240ms';
-
- const transitionEndBound = onTransitionEnd.bind(this);
- function onTransitionEnd() {
- list.style.overflow = '';
- list.style.maxHeight = '';
- list.style.transition = '';
- list.style.display = 'none';
- list.removeEventListener('transitionend', transitionEndBound);
- }
-
- setTimeout(() => {
- requestAnimationFrame(() => {
- list.style.maxHeight = `0px`;
- list.addEventListener('transitionend', transitionEndBound)
- });
- }, 1);
+ this.elem.setAttribute('aria-expanded', 'false');
+ slideUp(list, 240);
}
click(event) {