<template>
<div>
<FloatBall />
</div>
</template>
<script>
import FloatBall from "@/components/FloatBall.vue"
export default {
name: "HomeView",
components: {
FloatBall },
data() {
return {
};
},
mounted() {
}
};
</script>
<style lang="less" scoped>
</style>
<template>
<transition>
<div ref="floatBall" class="floatBall" @touchstart.stop="handleStart"
@touchmove.prevent.stop="handleMove($event)" @touchend.stop="handleEnd"
:style="{ left: left + 'px', top: top + 'px', width: itemWidth + 'px', height: itemHeight + 'px' }"
v-if="isShow">
{
{ text }}
</div>
</transition>
</template>
<script>
export default {
props: {
text: {
type: String,
default: '悬浮'
},
itemWidth: {
type: Number,
default: 80
},
itemHeight: {
type: Number,
default: 80
}
},
data() {
return {
left: 0,
top: 0,
startToMove: false,
isShow: true,
timer: null,
currentTop: null,
clientW: document.documentElement.clientWidth,
clientH: document.documentElement.clientHeight,
}
},
created() {
this.left = (this.clientW - this.itemWidth - 30)
this.top = (this.clientH / 2 - this.itemHeight / 2)
},
mounted() {
this.bindScrollEvent()
},
beforeDestroy() {
this.removeScrollEvent()
},
methods: {
handleStart() {
this.startToMove = true
this.$refs.floatBall.style.transition = "none"
},
handleMove(e) {
const clientX = e.targetTouches[0].clientX;
const clientY = e.targetTouches[0].clientY;
const isInScreen = clientX <= this.clientW && clientX >= 0 && clientY <= this.clientH && clientY >= 0
if (this.startToMove && e.targetTouches.length === 1) {
if (isInScreen) {
this.left = clientX - this.itemWidth / 2
this.top = clientY - this.itemHeight / 2
}
}
},
handleEnd() {
if (this.left < (this.clientW / 2)) {
this.left = 30;
this.handleIconY()
} else {
this.left = this.clientW - this.itemWidth - 30;
this.handleIconY()
}
this.$refs.floatBall.style.transition = "all .3s"
},
handleIconY() {
if (this.top < 0) {
this.top = 30;
} else if (this.top + this.itemHeight > this.clientH) {
this.top = this.clientH - this.itemHeight - 30;
}
},
bindScrollEvent() {
window.addEventListener('scroll', this.handleScrollStart)
},
removeScrollEvent() {
window.removeEventListener('scroll', this.handleScrollStart)
},
handleScrollStart() {
this.isShow = false
this.timer && clearTimeout(this.timer)
this.timer = setTimeout(() => {
this.handleScrollEnd()
}, 300)
this.currentTop = document.documentElement.scrollTop || document.body.scrollTop
},
handleScrollEnd() {
this.scrollTop = document.documentElement.scrollTop || document.body.scrollTop
if (this.scrollTop == this.currentTop) {
this.isShow = true
}
}
},
}
</script>
<style scoped>
.floatBall {
position: fixed;
width: 80px;
height: 80px;
border-radius: 50%;
background-color: #f0f;
line-height: 80px;
text-align: center;
color: #fff;
}
.v-enter {
opacity: 1;
}
.v-leave-to {
opacity: 0;
}
.v-enter-active,
.v-leave-active {
transition: opacity 0.3s;
}
</style>
