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28 lines
953 B
TypeScript
28 lines
953 B
TypeScript
function toggleCallout(this: HTMLElement) {
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const outerBlock = this.parentElement!
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outerBlock.classList.toggle(`is-collapsed`)
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const collapsed = outerBlock.classList.contains(`is-collapsed`)
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const height = collapsed ? this.scrollHeight : outerBlock.scrollHeight
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outerBlock.style.maxHeight = height + `px`
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}
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function setupCallout() {
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const collapsible = document.getElementsByClassName(
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`callout is-collapsible`,
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) as HTMLCollectionOf<HTMLElement>
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for (const div of collapsible) {
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const title = div.firstElementChild
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if (title) {
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title.removeEventListener(`click`, toggleCallout)
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title.addEventListener(`click`, toggleCallout)
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const collapsed = div.classList.contains(`is-collapsed`)
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const height = collapsed ? title.scrollHeight : div.scrollHeight
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div.style.maxHeight = height + `px`
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}
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}
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}
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document.addEventListener(`nav`, setupCallout)
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window.addEventListener(`resize`, setupCallout)
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