import type { App } from 'vue';
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/**
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* 按钮波浪指令
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* @directive 默认方式：v-waves，如 `<div v-waves></div>`
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* @directive 参数方式：v-waves=" |light|red|orange|purple|green|teal"，如 `<div v-waves="'light'"></div>`
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*/
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export function wavesDirective(app: App) {
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app.directive('waves', {
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mounted(el, binding) {
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el.classList.add('waves-effect');
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binding.value && el.classList.add(`waves-${binding.value}`);
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function setConvertStyle(obj: { [key: string]: unknown }) {
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let style: string = '';
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for (let i in obj) {
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if (obj.hasOwnProperty(i)) style += `${i}:${obj[i]};`;
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}
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return style;
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}
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function onCurrentClick(e: { [key: string]: unknown }) {
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let elDiv = document.createElement('div');
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elDiv.classList.add('waves-ripple');
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el.appendChild(elDiv);
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let styles = {
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left: `${e.layerX}px`,
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top: `${e.layerY}px`,
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opacity: 1,
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transform: `scale(${(el.clientWidth / 100) * 10})`,
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'transition-duration': `750ms`,
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'transition-timing-function': `cubic-bezier(0.250, 0.460, 0.450, 0.940)`,
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};
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elDiv.setAttribute('style', setConvertStyle(styles));
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setTimeout(() => {
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elDiv.setAttribute(
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'style',
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setConvertStyle({
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opacity: 0,
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transform: styles.transform,
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left: styles.left,
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top: styles.top,
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})
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);
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setTimeout(() => {
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elDiv && el.removeChild(elDiv);
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}, 750);
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}, 450);
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}
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el.addEventListener('mousedown', onCurrentClick, false);
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},
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unmounted(el) {
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el.addEventListener('mousedown', () => {});
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},
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});
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}
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/**
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* 自定义拖动指令
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* @description 使用方式：v-drag="[dragDom,dragHeader]"，如 `<div v-drag="['.drag-container .el-dialog', '.drag-container .el-dialog__header']"></div>`
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* @description dragDom 要拖动的元素，dragHeader 要拖动的 Header 位置
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* @link 注意：https://github.com/element-plus/element-plus/issues/522
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* @lick 参考：https://blog.csdn.net/weixin_46391323/article/details/105228020?utm_medium=distribute.pc_relevant.none-task-blog-baidujs_title-10&spm=1001.2101.3001.4242
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*/
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export function dragDirective(app: App) {
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app.directive('drag', {
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mounted(el, binding) {
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if (!binding.value) return false;
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const dragDom = document.querySelector(binding.value[0]) as HTMLElement;
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const dragHeader = document.querySelector(binding.value[1]) as HTMLElement;
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dragHeader.onmouseover = () => (dragHeader.style.cursor = `move`);
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function down(e: any, type: string) {
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// 鼠标按下，计算当前元素距离可视区的距离
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const disX = type === 'pc' ? e.clientX - dragHeader.offsetLeft : e.touches[0].clientX - dragHeader.offsetLeft;
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const disY = type === 'pc' ? e.clientY - dragHeader.offsetTop : e.touches[0].clientY - dragHeader.offsetTop;
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// body当前宽度
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const screenWidth = document.body.clientWidth;
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// 可见区域高度(应为body高度，可某些环境下无法获取)
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const screenHeight = document.documentElement.clientHeight;
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// 对话框宽度
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const dragDomWidth = dragDom.offsetWidth;
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// 对话框高度
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const dragDomheight = dragDom.offsetHeight;
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const minDragDomLeft = dragDom.offsetLeft;
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const maxDragDomLeft = screenWidth - dragDom.offsetLeft - dragDomWidth;
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const minDragDomTop = dragDom.offsetTop;
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const maxDragDomTop = screenHeight - dragDom.offsetTop - dragDomheight;
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// 获取到的值带px 正则匹配替换
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let styL: any = getComputedStyle(dragDom).left;
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let styT: any = getComputedStyle(dragDom).top;
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// 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
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if (styL.includes('%')) {
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styL = +document.body.clientWidth * (+styL.replace(/\%/g, '') / 100);
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styT = +document.body.clientHeight * (+styT.replace(/\%/g, '') / 100);
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} else {
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styL = +styL.replace(/\px/g, '');
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styT = +styT.replace(/\px/g, '');
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}
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return {
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disX,
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disY,
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minDragDomLeft,
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maxDragDomLeft,
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minDragDomTop,
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maxDragDomTop,
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styL,
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styT,
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};
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}
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function move(e: any, type: string, obj: any) {
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let { disX, disY, minDragDomLeft, maxDragDomLeft, minDragDomTop, maxDragDomTop, styL, styT } = obj;
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// 通过事件委托，计算移动的距离
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let left = type === 'pc' ? e.clientX - disX : e.touches[0].clientX - disX;
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let top = type === 'pc' ? e.clientY - disY : e.touches[0].clientY - disY;
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// 边界处理
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if (-left > minDragDomLeft) {
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left = -minDragDomLeft;
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} else if (left > maxDragDomLeft) {
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left = maxDragDomLeft;
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}
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if (-top > minDragDomTop) {
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top = -minDragDomTop;
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} else if (top > maxDragDomTop) {
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top = maxDragDomTop;
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}
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// 移动当前元素
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dragDom.style.cssText += `;left:${left + styL}px;top:${top + styT}px;`;
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}
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/**
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* pc端
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* onmousedown 鼠标按下触发事件
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* onmousemove 鼠标按下时持续触发事件
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* onmouseup 鼠标抬起触发事件
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*/
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dragHeader.onmousedown = (e) => {
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const obj = down(e, 'pc');
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document.onmousemove = (e) => {
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move(e, 'pc', obj);
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};
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document.onmouseup = () => {
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document.onmousemove = null;
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document.onmouseup = null;
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};
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};
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/**
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* 移动端
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* ontouchstart 当按下手指时，触发ontouchstart
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* ontouchmove 当移动手指时，触发ontouchmove
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* ontouchend 当移走手指时，触发ontouchend
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*/
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dragHeader.ontouchstart = (e) => {
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const obj = down(e, 'app');
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document.ontouchmove = (e) => {
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move(e, 'app', obj);
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};
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document.ontouchend = () => {
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document.ontouchmove = null;
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document.ontouchend = null;
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};
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};
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},
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});
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}
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