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94 lines
2.1 KiB
Vue
94 lines
2.1 KiB
Vue
<template>
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<div
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ref="bubbleRef"
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class="floating-bubble"
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:style="bubbleStyle"
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@touchstart="onTouchStart"
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@touchmove="onTouchMove"
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@touchend="onTouchEnd"
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>
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<slot></slot>
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</div>
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</template>
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<script setup>
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import { ref, computed } from 'vue'
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import { useThrottleFn } from '@vueuse/core'
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const props = defineProps({
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offset: {
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type: Number,
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default: 0
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}
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})
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const bubbleRef = ref(null)
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const position = ref({
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right: props.offset,
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bottom: 100
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})
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let startTouch = { x: 0, y: 0 }
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let startPos = { right: 0, bottom: 0 }
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let isDragging = false
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const bubbleStyle = computed(() => ({
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position: 'fixed',
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right: `${position.value.right}px`,
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bottom: `${position.value.bottom}px`,
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zIndex: 99999,
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transition: isDragging ? 'none' : 'all 0.3s'
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}))
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const onTouchStart = (event) => {
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isDragging = true
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const touch = event.touches[0]
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startTouch = { x: touch.clientX, y: touch.clientY }
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startPos = { ...position.value }
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}
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const onTouchMove = useThrottleFn((event) => {
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if (!isDragging) return
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event.preventDefault()
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const touch = event.touches[0]
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const { clientWidth, clientHeight } = document.documentElement
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const rect = bubbleRef.value.getBoundingClientRect()
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// 计算新位置
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const deltaX = startTouch.x - touch.clientX
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const deltaY = startTouch.y - touch.clientY
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const newRight = startPos.right + deltaX
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const newBottom = startPos.bottom + deltaY
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// 边界检测
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position.value = {
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right: Math.min(Math.max(newRight, props.offset),
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clientWidth - rect.width - props.offset),
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bottom: Math.min(Math.max(newBottom, props.offset),
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clientHeight - rect.height - props.offset)
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}
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}, 16)
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const onTouchEnd = () => {
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if (!isDragging) return
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isDragging = false
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const { clientWidth } = document.documentElement
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const rect = bubbleRef.value.getBoundingClientRect()
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const left = clientWidth - position.value.right - rect.width
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// 吸附
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position.value.right = left < clientWidth / 2
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? clientWidth - rect.width - props.offset
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: props.offset
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}
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</script>
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<style scoped>
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.floating-bubble {
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touch-action: none;
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user-select: none;
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}
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</style>
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