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docuseal/app/javascript/elements/document_tabs.js

46 lines
1.7 KiB

export default class extends HTMLElement {
connectedCallback () {
this._tabs = Array.from(this.querySelectorAll('[role="tab"]'))
this._panels = Array.from(this.querySelectorAll('[role="tabpanel"]'))
this._tabs.forEach((tab) => {
tab.addEventListener('click', () => this._selectTab(tab))
tab.addEventListener('keydown', (e) => this._onKeydown(e))
})
const saved = localStorage.getItem('docuseal_document_view')
const savedTab = saved && this._tabs.find((t) => t.id === saved)
this._selectTab(savedTab || this._tabs[0], false)
}
_selectTab (selectedTab, save = true) {
this._tabs.forEach((tab) => {
const isSelected = tab === selectedTab
tab.setAttribute('aria-selected', isSelected ? 'true' : 'false')
tab.setAttribute('tabindex', isSelected ? '0' : '-1')
tab.classList.toggle('border-primary', isSelected)
tab.classList.toggle('text-primary', isSelected)
tab.classList.toggle('border-transparent', !isSelected)
tab.classList.toggle('text-base-content/60', !isSelected)
})
this._panels.forEach((panel) => {
panel.hidden = panel.id !== selectedTab.getAttribute('aria-controls')
})
if (save) localStorage.setItem('docuseal_document_view', selectedTab.id)
}
_onKeydown (e) {
const tabs = this._tabs
const idx = tabs.indexOf(e.currentTarget)
let next
if (e.key === 'ArrowRight') next = tabs[(idx + 1) % tabs.length]
else if (e.key === 'ArrowLeft') next = tabs[(idx - 1 + tabs.length) % tabs.length]
else if (e.key === 'Home') next = tabs[0]
else if (e.key === 'End') next = tabs[tabs.length - 1]
else return
e.preventDefault()
this._selectTab(next)
next.focus()
}
}