directives: {
// v-dialogDrag: 彈窗拖拽+水平方向伸縮
dialogDrag: {
bind(el, binding, vnode, oldVnode) {
let _this = this;
//彈框可拉伸最小寬高
let dialogTables = null;
let minWidth = 820;
let minHeight = 420;
//初始非全屏
let isFullScreen = false;
//當前寬高
let nowWidth = 0;
let nowHight = 0;
//當前頂部高度
let nowMarginTop = 0;
//獲取彈框頭部（這部分可雙擊全屏）
const dialogHeaderEl = el.querySelector('.el-dialog__header .header-title-drag');
//彈窗
const dragDom = el.querySelector('.el-dialog');
//獲取當前dialog id
const dialogID = el.id;
//給彈窗加上overflow auto；不然縮小時框內的標籤可能超出dialog；
dragDom.style.overflow = "hidden";
//清除選擇頭部文字效果
//dialogHeaderEl.onselectstart = new Function("return false");
//頭部加上可拖動cursor
dialogHeaderEl.style.cursor = 'move';
dialogHeaderEl.style.cssText += ';cursor:move;';
dragDom.style.cssText += ';top:0px;';
// 獲取原有屬性 ie dom元素.currentStyle 火狐谷歌 window.getComputedStyle(dom元素, null);
const sty = (function() {
if (window.document.currentStyle) {
return (dom, attr) => dom.currentStyle[attr];
} else {
return (dom, attr) => getComputedStyle(dom, null)[attr];
}
})();
//拖拽邊界優化
let moveDown = (e) => {
// 鼠標按下，計算當前元素距離可視區的距離
const disX = e.clientX - dialogHeaderEl.offsetLeft;
const disY = e.clientY - dialogHeaderEl.offsetTop;
const screenWidth = document.body.clientWidth; // body當前寬度
const screenHeight = document.documentElement.clientHeight; // 可見區域高度(應爲body高度，可某些環境下無法獲取)
const dragDomWidth = dragDom.offsetWidth; // 對話框寬度
const dragDomheight = dragDom.offsetHeight; // 對話框高度
const minDragDomLeft = dragDom.offsetLeft;
const maxDragDomLeft = screenWidth - dragDom.offsetLeft - dragDomWidth;
const minDragDomTop = dragDom.offsetTop;
const maxDragDomTop = screenHeight - dragDom.offsetTop - dragDomheight;
// 獲取到的值帶px 正則匹配替換
let styL = sty(dragDom, 'left');
let styT = sty(dragDom, 'top');
// 注意在ie中 第一次獲取到的值爲組件自帶50% 移動之後賦值爲px
if (styL.includes('%')) {
// eslint-disable-next-line no-useless-escape
styL = +document.body.clientWidth * (+styL.replace(/\%/g, '') / 100);
// eslint-disable-next-line no-useless-escape
styT = +document.body.clientHeight * (+styT.replace(/\%/g, '') / 100);
} else {
styL = +styL.replace(/\px/g, '');
styT = +styT.replace(/\px/g, '');
}
document.onmousemove = function (e) {
// 通過事件委託，計算移動的距離
let left = e.clientX - disX;
let top = e.clientY - disY;
// 邊界處理
if (-left > minDragDomLeft) {
left = -minDragDomLeft;
} else if (left > maxDragDomLeft) {
left = maxDragDomLeft;
}
if (-top > minDragDomTop) {
top = -minDragDomTop;
} else if (top > maxDragDomTop) {
top = maxDragDomTop;
}
// 移動當前元素
dragDom.style.cssText += `;left:${left + styL}px;top:${top + styT}px;`;
};
document.onmouseup = function(e) {
document.onmousemove = null;
document.onmouseup = null;
};
return false;
};
dialogHeaderEl.onmousedown = moveDown;
//雙擊頭部全屏效果
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.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.style.width = nowWidth + 'px';
dragDom.style.marginTop = nowMarginTop;
isFullScreen = false;
dialogHeaderEl.style.cursor = 'move';
dialogHeaderEl.onmousedown = moveDown;
}
}
dragDom.onmousemove = function (e) {
let moveE = e;
if (e.clientX > dragDom.offsetLeft + dragDom.clientWidth - 10 || dragDom.offsetLeft + 10 > e.clientX) {
dragDom.style.cursor = 'w-resize';
} else if (el.scrollTop + e.clientY > dragDom.offsetTop + dragDom.clientHeight - 10) {
dragDom.style.cursor = 's-resize';
} else {
dragDom.style.cursor = 'default';
dragDom.onmousedown = null;
}
dragDom.onmousedown = (e) => {
const clientX = e.clientX;
const clientY = e.clientY;
let elW = dragDom.clientWidth;
let elH = dragDom.clientHeight;
let EloffsetLeft = dragDom.offsetLeft;
let EloffsetTop = dragDom.offsetTop;
// dragDom.style.userSelect = 'none';
let ELscrollTop = el.scrollTop;
//判斷點擊的位置是不是爲頭部
if (clientX > EloffsetLeft && clientX < EloffsetLeft + elW && clientY > EloffsetTop && clientY < EloffsetTop + 100) {
//如果是頭部在此就不做任何動作，以上有綁定dialogHeaderEl.onmousedown = moveDown;
}else{
document.onmousemove = function (e) {
// e.preventDefault(); // 移動時禁用默認事件
//左側鼠標拖拽位置
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){
}else{
dragDom.style.width = elW - (e.clientX - clientX) * 2 + 'px';
}
}
}
//右側鼠標拖拽位置
if (clientX > EloffsetLeft + elW - 10 && clientX < EloffsetLeft + elW) {
//往左拖拽
if (clientX > e.clientX) {
if (dragDom.clientWidth < minWidth) {
} else {
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';
}
}
//底部鼠標拖拽位置
if (ELscrollTop + clientY > EloffsetTop + elH - 20 && ELscrollTop + clientY < EloffsetTop + elH) {
if(dialogID =="dialog-detail"){
dialogTables = document.getElementById('childTable')
}
if(dialogID =="dialog-error-detail"){
dialogTables = document.getElementById('childErrorTable')
}
if(dialogID =="dialog-bill-detail"){
dialogTables = document.getElementById('childBillTable')
}
// 往上拖拽
if (clientY > e.clientY) {
if (dragDom.clientHeight < minHeight) {
} else {
dragDom.style.height = elH - (clientY - e.clientY) * 2 + 'px';
let changeHeightSize = elH - (clientY - e.clientY) * 2;
// dialogTables.style.height = (changeHeightSize - 109 - 25 - 32)*0.1522 + 'vh'
dialogTables.style.height = (changeHeightSize - 84 - 25) + 'px'
}
}
//往下拖拽
if (clientY < e.clientY) {
dragDom.style.height = elH + (e.clientY - clientY) * 2 + 'px';
let changeHeightSize = elH - (clientY - e.clientY) * 2;
// dialogTables.style.height = (changeHeightSize - 109 - 25 - 32)*0.1522 + 'vh'
dialogTables.style.height = (changeHeightSize - 84 - 25) + 'px'
}
}
};
//拉伸結束
document.onmouseup = function (e) {
document.onmousemove = null;
document.onmouseup = null;
};
}
}
}
}
}
},
