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@@ -0,0 +1,184 @@
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+
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+export default function (Alpine) {
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+ Alpine.directive('popover', (el, directive) => {
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+ if (! directive.value) handleRoot(el, Alpine)
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+ else if (directive.value === 'overlay') handleOverlay(el, Alpine)
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+ else if (directive.value === 'button') handleButton(el, Alpine)
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+ else if (directive.value === 'panel') handlePanel(el, Alpine)
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+ else if (directive.value === 'group') handleGroup(el, Alpine)
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+ })
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+
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+ Alpine.magic('popover', el => {
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+ let $data = Alpine.$data(el)
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+
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+ return {
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+ get open() {
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+ return $data.__isOpen
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+ }
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+ }
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+ })
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+}
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+
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+function handleRoot(el, Alpine) {
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+ Alpine.bind(el, {
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+ 'x-id'() { return ['alpine-popover-button', 'alpine-popover-panel'] },
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+ 'x-data'() {
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+ return {
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+ init() {
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+ if (this.$data.__groupEl) {
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+ this.$data.__groupEl.addEventListener('__close-others', ({ detail }) => {
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+ if (detail.el.isSameNode(this.$el)) return
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+
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+ this.__close(false)
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+ })
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+ }
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+ },
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+ __buttonEl: undefined,
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+ __panelEl: undefined,
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+ __isOpen: false,
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+ __open() {
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+ this.__isOpen = true
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+
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+ this.$dispatch('__close-others', { el: this.$el })
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+ },
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+ __toggle() {
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+ this.__isOpen ? this.__close() : this.__open()
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+ },
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+ __close(el) {
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+ this.__isOpen = false
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+
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+ if (el === false) return
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+
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+ el = el || this.$data.__buttonEl
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+
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+ if (document.activeElement.isSameNode(el)) return
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+
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+ setTimeout(() => el.focus())
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+ },
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+ __contains(outer, inner) {
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+ return !! Alpine.findClosest(inner, el => el.isSameNode(outer))
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+ }
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+ }
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+ },
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+ '@keydown.escape.stop.prevent'() {
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+ this.__close()
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+ },
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+ '@focusin.window'() {
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+ if (this.$data.__groupEl) {
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+ if (! this.$data.__contains(this.$data.__groupEl, document.activeElement)) {
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+ this.$data.__close(false)
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+ }
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+
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+ return
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+ }
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+
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+ if (! this.$data.__contains(this.$el, document.activeElement)) {
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+ this.$data.__close(false)
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+ }
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+ },
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+ })
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+}
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+
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+function handleButton(el, Alpine) {
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+ Alpine.bind(el, {
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+ 'x-ref': 'button',
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+ ':id'() { return this.$id('alpine-popover-button') },
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+ ':aria-expanded'() { return this.$data.__isOpen },
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+ ':aria-controls'() { return this.$data.__isOpen && this.$id('alpine-popover-panel') },
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+ 'x-init'() {
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+ if (this.$el.tagName.toLowerCase() === 'button' && !this.$el.hasAttribute('type')) this.$el.type = 'button'
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+
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+ this.$data.__buttonEl = this.$el
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+ },
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+ '@click'() { this.$data.__toggle() },
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+ '@keydown.tab'(e) {
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+ if (! e.shiftKey && this.$data.__isOpen) {
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+ e.preventDefault()
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+ e.stopPropagation()
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+ this.$focus.within(this.$data.__panelEl).first()
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+ }
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+ },
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+ '@keyup.tab'(e) {
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+ if (this.$data.__isOpen) {
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+ // Check if the last focused element was "after" this one
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+ let lastEl = this.$focus.previouslyFocused()
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+
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+ if (
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+ // Make sure the last focused wasn't part of this popover.
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+ (! this.$data.__buttonEl.contains(lastEl) && ! this.$data.__panelEl.contains(lastEl))
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+ // Also make sure it appeared "after" this button in the DOM.
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+ && this.$el.compareDocumentPosition(lastEl) & Node.DOCUMENT_POSITION_FOLLOWING
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+ ) {
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+ e.preventDefault()
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+ e.stopPropagation()
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+
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+ this.$focus.within(this.$data.__panelEl).last()
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+ }
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+ }
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+ },
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+ '@keydown.space.stop.prevent'() { this.$data.__toggle() },
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+ '@keydown.enter.stop.prevent'() { this.$data.__toggle() },
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+ // This is to stop Firefox from firing a "click".
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+ '@keyup.space.stop.prevent'() { },
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+ })
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+}
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+
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+function handlePanel(el, Alpine) {
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+ Alpine.bind(el, {
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+ 'x-init'() { this.$data.__panelEl = this.$el },
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+ 'x-effect'() {
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+ this.$data.__isOpen && Alpine.bound(el, 'focus') && this.$focus.first()
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+ },
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+ 'x-ref': 'panel',
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+ ':id'() { return this.$id('alpine-popover-panel') },
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+ 'x-show'() { return this.$data.__isOpen },
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+ '@mousedown.window'($event) {
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+ if (! this.$data.__isOpen) return
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+ if (this.$data.__contains(this.$data.__buttonEl, $event.target)) return
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+ if (this.$data.__contains(this.$el, $event.target)) return
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+
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+ if (! this.$focus.focusable($event.target)) {
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+ this.$data.__close()
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+ }
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+ },
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+ '@keydown.tab'(e) {
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+ if (e.shiftKey && this.$focus.isFirst(e.target)) {
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+ e.preventDefault()
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+ e.stopPropagation()
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+ Alpine.bound(el, 'focus') ? this.$data.__close() : this.$data.__buttonEl.focus()
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+ } else if (! e.shiftKey && this.$focus.isLast(e.target)) {
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+ e.preventDefault()
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+ e.stopPropagation()
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+
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+ // Get the next panel button:
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+ let els = this.$focus.within(document).all()
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+ let buttonIdx = els.indexOf(this.$data.__buttonEl)
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+
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+ let nextEls = els
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+ .splice(buttonIdx + 1) // Elements after button
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+ .filter(el => ! this.$el.contains(el)) // Ignore items in panel
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+
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+ nextEls[0].focus()
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+
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+ Alpine.bound(el, 'focus') && this.$data.__close(false)
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+ }
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+ },
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+ })
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+}
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+
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+function handleGroup(el, Alpine) {
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+ Alpine.bind(el, {
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+ 'x-ref': 'container',
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+ 'x-data'() {
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+ return {
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+ __groupEl: this.$el,
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+ }
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+ },
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+ })
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+}
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+
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+function handleOverlay(el, Alpine) {
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+ Alpine.bind(el, {
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+ 'x-show'() { return this.$data.__isOpen }
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+ })
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+}
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