livewire-material/resources/js/tooltip.js

/**
 * `materialTooltip`: shows an `<x-tooltip>` popover for the control it belongs to.
 *
 * The trigger is the popover's parent element (the button, or the standalone wrapper). Hover
 * counts only for a pointer that can hover, after a short delay so a pointer passing over a
 * toolbar does not flash every label; keyboard focus shows it at once. A press, leaving, blur
 * and Escape hide it.
 */
const HOVER_DELAY_MS = 500

document.addEventListener('alpine:init', () => {
    window.Alpine.data('materialTooltip', () => ({
        timer: null,
        listeners: [],

        init() {
            const tip = this.$el
            const trigger = tip.parentElement

            const open = () => tip.matches(':popover-open')

            const show = (delay) => {
                clearTimeout(this.timer)
                this.timer = setTimeout(() => {
                    if (tip.isConnected && !open()) {
                        tip.showPopover()
                    }
                }, delay)
            }

            const hide = () => {
                clearTimeout(this.timer)

                if (open()) {
                    tip.hidePopover()
                }
            }

            this.listen(trigger, 'pointerenter', (event) => event.pointerType === 'mouse' && show(HOVER_DELAY_MS))
            this.listen(trigger, 'pointerleave', hide)
            this.listen(trigger, 'pointerdown', hide)
            this.listen(trigger, 'focusin', () => trigger.matches(':focus-within:has(:focus-visible), :focus-visible') && show(0))
            this.listen(trigger, 'focusout', hide)
            this.listen(document, 'keydown', (event) => event.key === 'Escape' && hide())
        },

        listen(target, type, handler) {
            target.addEventListener(type, handler)
            this.listeners.push(() => target.removeEventListener(type, handler))
        },

        destroy() {
            clearTimeout(this.timer)
            this.listeners.forEach((remove) => remove())
        },
    }))
})