可以拖拽，靠边停靠，效果图如下
代码如下：
注意：代码中使用的图片未上传
DragAndDrop组件：
<template>
<div class="drag" id="moveDiv"
@mousedown="start($event)" @touchstart="start($event)"
@mousemove="move($event)" @touchmove="move($event)"
@mouseup="end($event)" @touchend="end($event)">
<slot name="drag-cont"></slot>
<div id="optionBall"></div>
<div id="optionContent" v-show="optionContentShow">
<span class="imgWrap" @click="gatewayOption" v-bind:style="{backgroundColor : this.$parent.whichOption? '#ff5b45' : '#ffffff'}" >
<img v-bind:src="this.$parent.whichOption?require('../assets/img/SmartGateway_write.png'):require('../assets/img/SmartGateway.png')" alt="" width="24px" height="24px">
</span>
<span class="imgWrap" @click="alertOption" v-bind:style="{backgroundColor : !this.$parent.whichOption? '#ff5b45' : '#ffffff'}">
<img v-bind:src="!this.$parent.whichOption?require('../assets/img/alert_write.png'):require('../assets/img/alert.png')" alt="" width="24px" height="24px">
</span>
</div>
</div><!--E 拖动组件 -->
</template> <script>
export default {
name: "dragAndDrop",
data() {
return {
position: {x: 0,y: 0}, // 鼠标点击的x轴和y轴的距离
nx: '', // 鼠标当前距离元素的左侧距离
ny: '', // 鼠标当前距离元素的顶部距离
dx: '', // 元素距离左侧的距离
dy: '', // 元素距离顶部的距离
xPum: '', // 元素移动的x轴距离
yPum: '', // 元素移动的y轴距离
optionContentShow: true
};
},
methods: {
start(e){
// 如果touches存在就说明是移动端
// 否则为pc端直接获取事件源对象
let touch = e.touches? e.touches[0] : e;
this.position.x = touch.clientX;
this.position.y = touch.clientY;
this.dx = moveDiv.offsetLeft;
this.dy = moveDiv.offsetTop;
this.optionContentShow = true;
},
move(e){
this.isDrop = true;
if(this.isDrop){
let touch = e.touches? e.touches[0] : e;
this.nx = touch.clientX - this.position.x;
this.ny = touch.clientY - this.position.y;
this.xPum = this.dx+this.nx;
this.yPum = this.dy+this.ny;
moveDiv.style.left = this.xPum + "px";
moveDiv.style.top = this.yPum + "px";
document.addEventListener("touchmove",function(){
event.preventDefault();
},false);
if(e.preventDefault){
e.preventDefault();
}else{
window.event.returnValue == false;
}
} },
end(e){
let oWidth = moveDiv.offsetWidth; // Element Width
let oWrapWidth = moveDiv.parentNode.offsetWidth; // Parent Element Width
let oWrprapHeight = moveDiv.parentNode.offsetHeight; // Parent Element Height
let sumWidth = moveDiv.offsetLeft + oWidth; // Element Left + Element Width
let sumHeight = moveDiv.offsetTop + moveDiv.offsetHeight; // Element Top + Element Height
// The Limit Deal
if(moveDiv.offsetLeft < 0) {
moveDiv.style.left = 0;
this.optionContentShow = false;
moveDiv.style.left = "-30px";
} else if(sumWidth > oWrapWidth){
moveDiv.style.left = oWrapWidth - oWidth + 'px';
// console.log("到最右边了");
this.optionContentShow = false;
moveDiv.style.left = "-30px";
} else if(moveDiv.offsetTop < 0) {
moveDiv.style.top = 0;
} else if(sumHeight > oWrprapHeight) {
moveDiv.style.top = oWrprapHeight - moveDiv.offsetHeight + 'px';
}
document.onmousemove = null;
document.onmouseup = null;
},
gatewayOption: function () {
this.$parent.gatewayOption();
},
alertOption: function () {
this.$parent.alertOption();
},
}
};
</script> <style scoped>
.drag {
width: 160px;
height: 60px;
position: absolute;
left: 40px;
bottom: 60px;
z-index: 999;
} #optionBall {
width: 56px;
height: 56px;
position: absolute;
background-color: #ff5b45;
border-radius: 56px;
z-index: 20;
} #optionContent {
width: 130px;
height: 50px;
background-color: #ff956b;
position: absolute;
left: 20px;
margin-top: 3px;
border-radius: 50px;
z-index: 10;
padding: 6px 0 6px 34px;
box-sizing: border-box;
} .imgWrap {
display: inline-block;
width: 38px;
height: 38px;
background-color: #ffffff;
border-radius: 40px;
padding: 8px;
box-sizing: border-box;
} .checked {
background-color: #ff5b45;
}
</style> 父组件：subDevice.vue
<template>
<DragAndDrop></DragAndDrop>
</template>
<script>
import DragAndDrop from "./DragAndDrop";
export default {
name: "subDevice",
components: {DragAndDrop,InfiniteScroll},
data() {
return {
whichOption: true
}
},
methods:{
gatewayOption: function () {
this.whichOption = true;
},
alertOption: function () {
this.whichOption = false;
}
}
}
</script>