页面悬浮按钮可拖动实现
作者：互联网
注：引入https://blog.csdn.net/qq_34684704/article/details/119952404
<template>
<div
ref="floatDrag"
class="float-position"
:style="{ top: top + 'px', right: right + 'px !important', zIndex: zIndex }"
@touchmove.prevent
@mousemove.prevent
@mousedown="mouseDown"
@mouseup="mouseUp"
>
<div class="content">
<!-- <div>
<span class="close">
<Icon icon="icon-guanbi" :size="18" />
</span>
<Icon icon="icon-xuanzhong" :size="36" style="color: #fff" />
</div> -->
<img src="../../../assets/images/uploadLoading.png" alt="" />
</div>
</div>
</template>
<script>
import { Icon } from '/@/components/Icon';
export default {
components: {
Icon,
},
name: 'DragBall',
props: {
distanceRight: {
type: Number,
default: 36,
},
distanceBottom: {
type: Number,
default: 100,
},
isScrollHidden: {
type: Boolean,
default: false,
},
isCanDraggable: {
type: Boolean,
default: true,
},
zIndex: {
type: Number,
default: 50,
},
value: {
type: String,
default: '悬浮球！',
},
},
//data 域
data() {
return {
clientWidth: null,
clientHeight: null,
left: null,
top: null,
right: null,
timer: null,
currentTop: 0,
mousedownX: 0,
mousedownY: 0,
};
},
created() {
this.clientWidth = document.documentElement.clientWidth;
this.clientHeight = document.documentElement.clientHeight;
},
mounted() {
this.isCanDraggable &&
this.$nextTick(() => {
this.floatDrag = this.$refs.floatDrag;
// 获取元素位置属性
this.floatDragDom = this.floatDrag.getBoundingClientRect();
// 设置初始位置
// this.left = this.clientWidth - this.floatDragDom.width - this.distanceRight;
this.right = this.distanceRight;
this.top = this.clientHeight - this.floatDragDom.height - this.distanceBottom;
this.initDraggable();
});
// this.isScrollHidden && window.addEventListener('scroll', this.handleScroll);
window.addEventListener('resize', this.handleResize);
},
beforeUnmount() {
window.removeEventListener('scroll', this.handleScroll);
window.removeEventListener('resize', this.handleResize);
},
methods: {
/**
* 窗口resize监听
*/
handleResize() {
// this.clientWidth = document.documentElement.clientWidth;
// this.clientHeight = document.documentElement.clientHeight;
// console.log(window.innerWidth);
// console.log(document.documentElement.clientWidth);
this.checkDraggablePosition();
},
/**
* 初始化draggable
*/
initDraggable() {
this.floatDrag.addEventListener('touchstart', this.toucheStart);
this.floatDrag.addEventListener('touchmove', (e) => this.touchMove(e));
this.floatDrag.addEventListener('touchend', this.touchEnd);
},
mouseDown(e) {
const event = e || window.event;
this.mousedownX = event.screenX;
this.mousedownY = event.screenY;
const that = this;
let floatDragWidth = this.floatDragDom.width / 2;
let floatDragHeight = this.floatDragDom.height / 2;
if (event.preventDefault) {
event.preventDefault();
}
this.canClick = false;
this.floatDrag.style.transition = 'none';
document.onmousemove = function (e) {
var event = e || window.event;
console.log(event.clientX);
console.log(event.clientY);
that.right = that.clientWidth - event.clientX - floatDragWidth;
that.top = event.clientY - floatDragHeight;
console.log(that.right);
if (that.right < 0) that.right = 0;
if (that.top < 0) that.top = 0;
if (that.right >= document.documentElement.clientWidth - floatDragWidth * 2) {
that.right = document.documentElement.clientWidth - floatDragWidth * 2;
}
if (that.top >= that.clientHeight - floatDragHeight * 2) {
that.top = that.clientHeight - floatDragHeight * 2;
}
// that.left = event.clientX - floatDragWidth;
// that.top = event.clientY - floatDragHeight;
// if (that.left < 0) that.left = 0;
// if (that.top < 0) that.top = 0;
// if (that.left >= document.documentElement.clientWidth - floatDragWidth * 2) {
// that.left = document.documentElement.clientWidth - floatDragWidth * 2;
// }
// if (that.top >= that.clientHeight - floatDragHeight * 2) {
// that.top = that.clientHeight - floatDragHeight * 2;
// }
};
},
mouseUp(e) {
const event = e || window.event;
//判断只是单纯的点击，没有拖拽
if (this.mousedownY == event.screenY && this.mousedownX == event.screenX) {
this.$emit('handlepaly');
}
document.onmousemove = null;
this.checkDraggablePosition();
this.floatDrag.style.transition = 'all 0.3s';
},
toucheStart() {
this.canClick = false;
this.floatDrag.style.transition = 'none';
},
touchMove(e) {
this.canClick = true;
if (e.targetTouches.length === 1) {
// 单指拖动
let touch = event.targetTouches[0];
this.left = touch.clientX - this.floatDragDom.width / 2;
this.top = touch.clientY - this.floatDragDom.height / 2;
}
},
touchEnd() {
if (!this.canClick) return; // 解决点击事件和touch事件冲突的问题
this.floatDrag.style.transition = 'all 0.3s';
this.checkDraggablePosition();
},
/**
* 判断元素显示位置
* 在窗口改变和move end时调用
*/
checkDraggablePosition() {
this.clientWidth = document.documentElement.clientWidth;
this.clientHeight = document.documentElement.clientHeight;
// if (this.left + this.floatDragDom.width / 2 >= this.clientWidth / 2) {
// // 判断位置是往左往右滑动
// this.left = this.clientWidth - this.floatDragDom.width;
// } else {
// this.left = 0;
// }
if (this.right + this.floatDragDom.width / 2 >= this.clientWidth / 2) {
// 判断位置是往左往右滑动
this.right = this.clientWidth - this.floatDragDom.width;
} else {
this.right = 0;
}
if (this.top < 0) {
// 判断是否超出屏幕上沿
this.top = 0;
}
if (this.top + this.floatDragDom.height >= this.clientHeight) {
// 判断是否超出屏幕下沿
this.top = this.clientHeight - this.floatDragDom.height;
}
},
},
};
</script>
<style>
html,
body {
overflow: hidden;
}
</style>
<style scoped lang="less">
.float-position {
position: fixed;
z-index: 10003 !important;
right: 0;
top: 70%;
width: 70px;
height: 70px;
background: pink;
// background: #716af2;
// box-shadow: 0px 0px 10px 2px #a299ff;
// border-radius: 50%;
// overflow: hidden;
display: flex;
align-items: center;
justify-content: center;
user-select: none;
border-right: 3px dashed #c00;
.content {
width: 50px;
height: 50px;
background: #716af2;
box-shadow: 0px 0px 10px 2px #a299ff;
border-radius: 50%;
position: relative;
padding: 0.8em;
display: flex;
align-content: center;
justify-content: center;
}
.close {
width: 20px;
height: 20px;
border-radius: 50%;
display: flex;
align-items: center;
justify-content: center;
color: #fff;
background: rgba(0, 0, 0, 0.6);
position: absolute;
right: -10px;
top: -12px;
cursor: pointer;
}
}
.cart {
border-radius: 50%;
width: 5em;
height: 5em;
display: flex;
align-items: center;
justify-content: center;
}
.header-notice {
display: inline-block;
transition: all 0.3s;
span {
vertical-align: initial;
}
.notice-badge {
color: inherit;
.header-notice-icon {
font-size: 16px;
padding: 4px;
}
}
}
.drag-ball .drag-content {
overflow-wrap: break-word;
font-size: 14px;
color: #fff;
letter-spacing: 2px;
}
</style>
标签：right,拖动,top,clientHeight,clientWidth,按钮,floatDragDom,event,页面 来源： https://www.cnblogs.com/deng-jie/p/16408876.html