vue v-dialogDrag: 弹窗拖拽

Vue.directive('dialogDrag', {

inserted:function(el) {

const dragDom = el.querySelector('.jsPropupLayerHead');

dragDom.style.cursor = 'move';

dragDom.onmousedown = (e) => {

event.stopPropagation();

// 鼠标按下，计算当前元素距离可视区的距离

const disX = e.clientX - el.offsetLeft;

const disY = e.clientY - el.offsetTop;

console.log('disX='+disX)

console.log('disY='+disY)

document.onmousemove = (e)=>{

//用鼠标的位置减去鼠标相对元素的位置，得到元素的位置

let left = e.clientX - disX;

let top = e.clientY - disY;

//移动当前元素

el.style.left = left + 'px';

el.style.top = top + 'px';

};

document.onmouseup = (e) => {

document.onmousemove = null;

document.onmouseup = null;

};

}

}

})