自定义弹窗拖拽指令

ruoyi-ui/src/directive/dialog/drag.js

@@ -0,0 +1,64 @@
+/**
+* v-dialogDrag 弹窗拖拽
+* Copyright (c) 2019 ruoyi
+*/
+
+export default {
+  bind(el, binding, vnode, oldVnode) {
+    const value = binding.value
+    if (value == false) return
+    // 获取拖拽内容头部
+    const dialogHeaderEl = el.querySelector('.el-dialog__header');
+    const dragDom = el.querySelector('.el-dialog');
+    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);
+    dragDom.style.position = 'absolute';
+    dragDom.style.marginTop = 0;
+    let width = dragDom.style.width;
+    if (width.includes('%')) {
+      width = +document.body.clientWidth * (+width.replace(/\%/g, '') / 100);
+    } else {
+      width = +width.replace(/\px/g, '');
+    }
+    dragDom.style.left = `${(document.body.clientWidth - width) / 2}px`;
+    // 鼠标按下事件
+    dialogHeaderEl.onmousedown = (e) => {
+      // 鼠标按下，计算当前元素距离可视区的距离 (鼠标点击位置距离可视窗口的距离)
+      const disX = e.clientX - dialogHeaderEl.offsetLeft;
+      const disY = e.clientY - dialogHeaderEl.offsetTop;
+
+      // 获取到的值带px 正则匹配替换
+      let styL, styT;
+
+      // 注意在ie中 第一次获取到的值为组件自带50% 移动之后赋值为px
+      if (sty.left.includes('%')) {
+        styL = +document.body.clientWidth * (+sty.left.replace(/\%/g, '') / 100);
+        styT = +document.body.clientHeight * (+sty.top.replace(/\%/g, '') / 100);
+      } else {
+        styL = +sty.left.replace(/\px/g, '');
+        styT = +sty.top.replace(/\px/g, '');
+      };
+
+      // 鼠标拖拽事件
+      document.onmousemove = function (e) {
+        // 通过事件委托，计算移动的距离 （开始拖拽至结束拖拽的距离）
+        const l = e.clientX - disX;
+        const t = e.clientY - disY;
+
+        let finallyL = l + styL
+        let finallyT = t + styT
+
+        // 移动当前元素
+        dragDom.style.left = `${finallyL}px`;
+        dragDom.style.top = `${finallyT}px`;
+
+      };
+
+      document.onmouseup = function (e) {
+        document.onmousemove = null;
+        document.onmouseup = null;
+      };
+    }
+  }
+};

ruoyi-ui/src/directive/index.js

@@ -1,14 +1,17 @@
-import hasRole from './hasRole'
+import hasRole from './permission/hasRole'
-import hasPermi from './hasPermi'
+import hasPermi from './permission/hasPermi'
+import dialogDrag from './dialog/drag'
 
 const install = function(Vue) {
   Vue.directive('hasRole', hasRole)
   Vue.directive('hasPermi', hasPermi)
+  Vue.directive('dialogDrag', dialogDrag)
 }
 
 if (window.Vue) {
   window['hasRole'] = hasRole
   window['hasPermi'] = hasPermi
+  window['dialogDrag'] = dialogDrag
   Vue.use(install); // eslint-disable-line
 }
 

ruoyi-ui/src/directive/permission/hasPermi.js

@@ -1,5 +1,5 @@
  /**
- * 操作权限处理
+ * v-hasPermi 操作权限处理
  * Copyright (c) 2019 ruoyi
  */
  

ruoyi-ui/src/directive/permission/hasRole.js

@@ -1,5 +1,5 @@
  /**
- * 角色权限处理
+ * v-hasRole 角色权限处理
  * Copyright (c) 2019 ruoyi
  */