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import { maybeDecode } from '../../utils/encode-decode'; |
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import getSiblings from '../../utils/get-siblings'; |
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|
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/** |
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* Block Accordion |
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*/ |
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const { |
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location, |
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GHOSTKIT, |
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Motion: { animate }, |
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requestAnimationFrame, |
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} = window; |
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|
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const { events } = GHOSTKIT; |
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|
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let pageHash = location.hash; |
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|
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const ANIMATION_SPEED = 300; |
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|
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function show($item, animationSpeed, cb) { |
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const $button = $item.querySelector( |
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'.ghostkit-accordion-item-heading > button' |
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); |
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const $content = $item.querySelector('.ghostkit-accordion-item-content'); |
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|
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$item.classList.add('ghostkit-accordion-item-active'); |
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|
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if ($button) { |
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$button.setAttribute('aria-expanded', 'true'); |
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} |
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|
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const contentStyles = window.getComputedStyle($content); |
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|
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const endHeight = contentStyles.height; |
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const endPaddingTop = contentStyles.paddingTop; |
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const endPaddingBottom = contentStyles.paddingBottom; |
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|
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$content.style.display = 'block'; |
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$content.style.overflow = 'hidden'; |
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|
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const animation = animate( |
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$content, |
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{ |
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height: ['0px', endHeight], |
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paddingTop: ['0px', endPaddingTop], |
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paddingBottom: ['0px', endPaddingBottom], |
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}, |
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{ |
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duration: animationSpeed / 1000, |
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easing: 'ease-out', |
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} |
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); |
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|
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animation.finished.then(() => { |
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// Reset styles. |
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$content.style.display = ''; |
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$content.style.overflow = ''; |
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$content.style.height = ''; |
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$content.style.paddingTop = ''; |
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$content.style.paddingBottom = ''; |
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$item.gktAccordion.animation = null; |
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|
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cb(); |
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}); |
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|
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$item.gktAccordion.animation = animation; |
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} |
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|
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function hide($item, animationSpeed, cb) { |
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const $button = $item.querySelector( |
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'.ghostkit-accordion-item-heading > button' |
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); |
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const $content = $item.querySelector('.ghostkit-accordion-item-content'); |
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|
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const contentStyles = window.getComputedStyle($content); |
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|
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const startPaddingTop = contentStyles.paddingTop; |
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const startPaddingBottom = contentStyles.paddingBottom; |
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const startHeight = contentStyles.height; |
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|
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$content.style.display = 'block'; |
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$content.style.overflow = 'hidden'; |
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|
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const animation = animate( |
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$content, |
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{ |
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height: [startHeight, '0px'], |
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paddingTop: [startPaddingTop, '0px'], |
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paddingBottom: [startPaddingBottom, '0px'], |
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}, |
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{ |
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duration: animationSpeed / 1000, |
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easing: 'ease-out', |
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} |
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); |
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|
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animation.finished.then(() => { |
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// Reset styles. |
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$content.style.display = ''; |
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$content.style.overflow = ''; |
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$content.style.height = ''; |
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$content.style.paddingTop = ''; |
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$content.style.paddingBottom = ''; |
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$item.gktAccordion.animation = null; |
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|
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cb(); |
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}); |
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|
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$item.gktAccordion.animation = animation; |
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|
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$item.classList.remove('ghostkit-accordion-item-active'); |
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|
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if ($button) { |
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$button.setAttribute('aria-expanded', 'false'); |
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} |
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} |
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|
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/** |
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* Toggle accordion item |
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* |
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* @param {Element} $heading - heading element |
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* @param {Int} animationSpeed - animation speed |
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* @param {boolean} skipCollapse - skip collapse other items |
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*/ |
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function toggleAccordionItem( |
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$heading, |
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animationSpeed = ANIMATION_SPEED, |
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skipCollapse = false |
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) { |
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const $accordion = $heading.closest('.ghostkit-accordion'); |
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const $item = $heading.closest('.ghostkit-accordion-item'); |
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const isActive = $item.classList.contains('ghostkit-accordion-item-active'); |
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const collapseOne = |
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!skipCollapse && |
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$accordion.classList.contains('ghostkit-accordion-collapse-one'); |
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|
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if (!$item?.gktAccordion) { |
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$item.gktAccordion = { |
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animation: null, |
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}; |
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} |
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|
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if ($item.gktAccordion.animation) { |
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$item.gktAccordion.animation.stop(); |
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} |
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|
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// Wait for the next frame to call this code after animation stopped. |
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requestAnimationFrame(() => { |
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if (isActive) { |
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events.trigger($accordion, 'hide.accordion.gkt', { |
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relatedTarget: $item, |
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}); |
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|
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hide($item, animationSpeed, () => { |
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events.trigger($accordion, 'hidden.accordion.gkt', { |
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relatedTarget: $item, |
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}); |
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}); |
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} else { |
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events.trigger($accordion, 'show.accordion.gkt', { |
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relatedTarget: $item, |
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}); |
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|
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show($item, animationSpeed, () => { |
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events.trigger($accordion, 'shown.accordion.gkt', { |
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relatedTarget: $item, |
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}); |
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}); |
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} |
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|
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// Hide all other elements |
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if (collapseOne && !isActive) { |
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getSiblings($item).forEach(($this) => { |
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if ( |
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$this.classList.contains('ghostkit-accordion-item-active') |
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) { |
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toggleAccordionItem($this, animationSpeed, true); |
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} |
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}); |
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} |
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}); |
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} |
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|
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/** |
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* Prepare Accordions. |
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*/ |
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events.on(document, 'init.blocks.gkt', () => { |
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document |
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.querySelectorAll('.ghostkit-accordion:not(.ghostkit-accordion-ready)') |
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.forEach(($this) => { |
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$this.classList.add('ghostkit-accordion-ready'); |
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|
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events.trigger($this, 'prepare.accordion.gkt'); |
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|
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// activate by page hash |
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if (pageHash) { |
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const pageHashEncoded = maybeDecode(pageHash); |
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|
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let $activeAccordion = $this.querySelector( |
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`:scope > [data-accordion="${pageHashEncoded.replace('#', '')}"]:not(.ghostkit-accordion-item-active) > .ghostkit-accordion-item-heading > button` |
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); |
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|
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// Legacy. |
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if (!$activeAccordion) { |
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$activeAccordion = $this.querySelector( |
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`:scope > :not(.ghostkit-accordion-item-active) > .ghostkit-accordion-item-heading > [href="${pageHashEncoded}"]` |
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); |
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} |
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|
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if ($activeAccordion) { |
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toggleAccordionItem($activeAccordion, 0); |
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} |
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} |
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|
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events.trigger($this, 'prepared.accordion.gkt'); |
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}); |
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}); |
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|
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/** |
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* Click Accordions. |
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*/ |
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events.on( |
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document, |
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'click', |
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'.ghostkit-accordion-item .ghostkit-accordion-item-heading', |
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(e) => { |
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e.preventDefault(); |
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toggleAccordionItem(e.delegateTarget, ANIMATION_SPEED); |
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} |
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); |
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|
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/* |
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* Activate item on hash change. |
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*/ |
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const handlerActivateItem = () => { |
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if (window.location.hash === pageHash) { |
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return; |
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} |
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|
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pageHash = window.location.hash; |
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|
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if (!pageHash) { |
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return; |
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} |
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|
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const pageHashEncoded = maybeDecode(pageHash); |
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|
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// Activate accordion item. |
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document |
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.querySelectorAll( |
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`.ghostkit-accordion-ready > [data-accordion="${pageHashEncoded.replace('#', '')}"]:not(.ghostkit-accordion-item-active) > .ghostkit-accordion-item-heading > button, |
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.ghostkit-accordion-ready > :not(.ghostkit-accordion-item-active) > .ghostkit-accordion-item-heading > [href="${pageHashEncoded}"]` |
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) |
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.forEach(($this) => { |
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toggleAccordionItem($this, ANIMATION_SPEED); |
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}); |
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}; |
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|
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events.on(window, 'hashchange', handlerActivateItem); |
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|
