自定义一个指令,下方代码直接使用,针对的是element 弹窗
使用:直接引入js, 在el-dialog上只是使用v-dialogDrag 就可以了,斜角拉升 有点问题,建议注释掉,我下面已经注释了
/* eslint-disable */
import Vue from 'vue';
// 需要在对话框中添加 v-dialogDrag
Vue.directive('dialogDrag', {
bind (el, binding, vnode, oldVnode) {
console.log("12313")
try {
// 弹框可拉伸最小宽高
let minWidth = 200;
let minHeight = 100;
// 初始非全屏
let isFullScreen = false;
// 当前宽高
let nowWidth = 0;
let nowHight = 0;
// 当前顶部高度
let nowMarginTop = 0;
// 获取弹框头部(这部分可双击全屏)
const dialogHeaderEl = el.querySelector('.el-dialog__header');
// 获取弹框底部
const dialogFootEl = el.querySelector('.el-dialog__footer');
// 弹窗
const dragDom = el.querySelector('.el-dialog');
dragDom.style.maxHeight = '100VH';
let headFootHeight = 0
let timer = setInterval(() => {
if(dialogHeaderEl.offsetHeight){
headFootHeight = dialogHeaderEl.offsetHeight+dialogFootEl.offsetHeight
clearInterval(timer)
}
}, 200);
// 给弹窗加上overflow auto;不然缩小时框内的标签可能超出dialog;
dragDom.style.overflow = 'auto';
// 清除选择头部文字效果
dialogHeaderEl.onselectstart = new Function('return false');
// 头部加上可拖动cursor
dialogHeaderEl.style.cursor = 'move';
// 获取原有属性 ie dom元素.currentStyle 火狐谷歌 window.getComputedStyle(dom元素, null);
const sty = dragDom.currentStyle || window.getComputedStyle(dragDom, null);
let moveDown = (e) => {
// 鼠标按下,计算当前元素距离可视区的距离
const disX = e.clientX - dialogHeaderEl.offsetLeft;
const disY = e.clientY - dialogHeaderEl.offsetTop;
// 获取到的值带px 正则匹配替换
let styL, styT;
// 注意在ie中 第一次获取到的值为组件自带50% 移动之后赋值为px
if (sty.left.includes('%')) {
styL = +document.body.clientWidth * (+sty.left.replace(/%/g, '') / 100);
styT = +document.body.clientHeight * (+sty.top.replace(/%/g, '') / 100);
} else {
styL = +sty.left.replace(/px/g, '');
styT = +sty.top.replace(/px/g, '');
}
document.onmousemove = function (e) {
// 通过事件委托,计算移动的距离
const l = e.clientX - disX;
const t = e.clientY - disY;
// 移动当前元素
dragDom.style.left = `${l + styL}px`;
dragDom.style.top = `${t + styT}px`;
// 将此时的位置传出去
// binding.value({x:e.pageX,y:e.pageY})
};
document.onmouseup = function (e) {
document.onmousemove = null;
document.onmouseup = null;
};
};
dialogHeaderEl.onmousedown = moveDown;
// 双击(头部)效果不想要可以注释
dialogHeaderEl.ondblclick = (e) => {
if (isFullScreen === false) {
nowHight = dragDom.clientHeight;
nowWidth = dragDom.clientWidth;
nowMarginTop = dragDom.style.marginTop;
dragDom.style.left = 0;
dragDom.style.top = 0;
dragDom.querySelector('.el-dialog__body').style.height = `calc(100VH - ${headFootHeight}px)`;
dragDom.querySelector('.el-dialog__body').style.maxHeight = `calc(100VH - ${headFootHeight}px)`;
dragDom.style.height = '100VH';
dragDom.style.width = '100VW';
dragDom.style.marginTop = 0;
isFullScreen = true;
dialogHeaderEl.style.cursor = 'initial';
dialogHeaderEl.onmousedown = null;
} else {
dragDom.style.height = 'auto';
dragDom.querySelector('.el-dialog__body').style.height = 'calc(100% - 300px)';
dragDom.querySelector('.el-dialog__body').style.maxHeight = `calc(100VH - 300px)`;
dragDom.style.width = nowWidth + 'px';
dragDom.style.marginTop = nowMarginTop;
isFullScreen = false;
dialogHeaderEl.style.cursor = 'move';
dialogHeaderEl.onmousedown = moveDown;
}
};
// 拉伸(右下方)效果不想要可以注释
// let resizeEl = document.createElement('div');
// dragDom.appendChild(resizeEl);
// // 在弹窗右下角加上一个10-10px的控制块
// resizeEl.style.cursor = 'se-resize';
// resizeEl.style.position = 'absolute';
// resizeEl.style.height = '10px';
// resizeEl.style.width = '10px';
// resizeEl.style.right = '0px';
// resizeEl.style.bottom = '0px';
// resizeEl.style.zIndex = '99';
// // 鼠标拉伸弹窗
// resizeEl.onmousedown = (e) => {
// // 记录初始x位置
// let clientX = e.clientX;
// // 鼠标按下,计算当前元素距离可视区的距离
// let disX = e.clientX - resizeEl.offsetLeft;
// let disY = e.clientY - resizeEl.offsetTop;
// document.onmousemove = function (e) {
// e.preventDefault(); // 移动时禁用默认事件
// // 通过事件委托,计算移动的距离
// let x = e.clientX - disX + (e.clientX - clientX);// 这里 由于elementUI的dialog控制居中的,所以水平拉伸效果是双倍
// let y = e.clientY - disY;
// // 比较是否小于最小宽高
// dragDom.style.width = x > minWidth ? `${x}px` : minWidth + 'px';
// dragDom.style.height = y > minHeight ? `${y}px` : minHeight + 'px';
// };
// // 拉伸结束
// document.onmouseup = function (e) {
// document.onmousemove = null;
// document.onmouseup = null;
// };
// };
// 拉伸(右边)效果不想要可以注释
let resizeElR = document.createElement('div');
dragDom.appendChild(resizeElR);
// 在弹窗右下角加上一个10-10px的控制块
resizeElR.style.cursor = 'w-resize';
resizeElR.style.position = 'absolute';
resizeElR.style.height = '100%';
resizeElR.style.width = '10px';
resizeElR.style.right = '0px';
resizeElR.style.top = '0px';
// 鼠标拉伸弹窗
resizeElR.onmousedown = (e) => {
let elW = dragDom.clientWidth;
let EloffsetLeft = dragDom.offsetLeft;
// 记录初始x位置
let clientX = e.clientX;
document.onmousemove = function (e) {
e.preventDefault(); // 移动时禁用默认事件
// 右侧鼠标拖拽位置
if (clientX > EloffsetLeft + elW - 10 && clientX < EloffsetLeft + elW) {
// 往左拖拽
if (clientX > e.clientX) {
if (dragDom.clientWidth >= minWidth) {
dragDom.style.width = elW - (clientX - e.clientX) * 2 + 'px';
}
}
// 往右拖拽
if (clientX < e.clientX) {
dragDom.style.width = elW + (e.clientX - clientX) * 2 + 'px';
}
}
};
// 拉伸结束
document.onmouseup = function (e) {
document.onmousemove = null;
document.onmouseup = null;
};
};
// 拉伸(左边)效果不想要可以注释
let resizeElL = document.createElement('div');
dragDom.appendChild(resizeElL);
// 在弹窗右下角加上一个10-10px的控制块
resizeElL.style.cursor = 'w-resize';
resizeElL.style.position = 'absolute';
resizeElL.style.height = '100%';
resizeElL.style.width = '10px';
resizeElL.style.left = '0px';
resizeElL.style.top = '0px';
// 鼠标拉伸弹窗
resizeElL.onmousedown = (e) => {
let elW = dragDom.clientWidth;
let EloffsetLeft = dragDom.offsetLeft;
// 记录初始x位置
let clientX = e.clientX;
document.onmousemove = function (e) {
e.preventDefault(); // 移动时禁用默认事件
// 左侧鼠标拖拽位置
if (clientX > EloffsetLeft && clientX < EloffsetLeft + 10) {
// 往左拖拽
if (clientX > e.clientX) {
dragDom.style.width = elW + (clientX - e.clientX) * 2 + 'px';
}
// 往右拖拽
if (clientX < e.clientX) {
if (dragDom.clientWidth >= minWidth) {
dragDom.style.width = elW - (e.clientX - clientX) * 2 + 'px';
}
}
}
};
// 拉伸结束
document.onmouseup = function (e) {
document.onmousemove = null;
document.onmouseup = null;
};
};
// 拉伸(下边)效果不想要可以注释
let resizeElB = document.createElement('div');
dragDom.appendChild(resizeElB);
// 在弹窗右下角加上一个10-10px的控制块
resizeElB.style.cursor = 'n-resize';
resizeElB.style.position = 'absolute';
resizeElB.style.height = '10px';
resizeElB.style.width = '100%';
resizeElB.style.left = '0px';
resizeElB.style.bottom = '0px';
// 鼠标拉伸弹窗
resizeElB.onmousedown = (e) => {
let EloffsetTop = dragDom.offsetTop;
let ELscrollTop = el.scrollTop;
let clientY = e.clientY;
let elH = dragDom.clientHeight;
document.onmousemove = function (e) {
e.preventDefault(); // 移动时禁用默认事件
// 底部鼠标拖拽位置
if (ELscrollTop + clientY > EloffsetTop + elH - 20 && ELscrollTop + clientY < EloffsetTop + elH) {
// 往上拖拽
if (clientY > e.clientY) {
if (dragDom.clientHeight >= minHeight) {
dragDom.style.height = elH - (clientY - e.clientY) * 2 + 'px';
dragDom.querySelector('.el-dialog__body').style.height = `calc(100% - ${headFootHeight}px)`;
}
}
// 往下拖拽
if (clientY < e.clientY) {
dragDom.style.height = elH + (e.clientY - clientY) * 2 + 'px';
dragDom.querySelector('.el-dialog__body').style.height = `calc(100% - ${headFootHeight}px)`
}
}
};
// 拉伸结束
document.onmouseup = function (e) {
document.onmousemove = null;
document.onmouseup = null;
};
};
} catch (error) {
console.log(error);
}
}
});