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Contents
import {controller} from '@github/catalyst'
// eslint-disable-next-line custom-elements/no-exports-with-element
export class ActionListTruncationObserver {
resizeObserver = new ResizeObserver(entries => {
for (const entry of entries) {
const action = entry.target
if (action instanceof HTMLElement) {
this.update(action)
}
}
})
constructor(el: HTMLElement) {
this.resizeObserver.observe(el)
}
unobserve(el: HTMLElement) {
this.resizeObserver.unobserve(el)
}
update(el: HTMLElement) {
const items = el.querySelectorAll('li')
for (const item of items) {
const label = item.querySelector('.ActionListItem-label') as HTMLElement
if (!label) continue
const tooltip = item.querySelector('.ActionListItem-truncationTooltip') as HTMLElement
if (!tooltip) continue
const isTruncated = label.scrollWidth > label.clientWidth
if (isTruncated) {
tooltip.style.display = ''
} else {
tooltip.style.display = 'none'
}
}
}
}
@controller
// eslint-disable-next-line custom-elements/expose-class-on-global
export class ActionListElement extends HTMLElement {
#truncationObserver: ActionListTruncationObserver
connectedCallback() {
this.#truncationObserver = new ActionListTruncationObserver(this)
}
disconnectedCallback() {
this.#truncationObserver.unobserve(this)
}
}
declare global {
interface Window {
ActionListElement: typeof ActionListElement
}
}
Version data entries
59 entries across 59 versions & 2 rubygems