lilei 3 years ago
parent
commit
8ccecaa493
3 changed files with 86 additions and 69 deletions
  1. 1 1
      public/version.json
  2. 84 67
      src/core/directives/dragModal.js
  3. 1 1
      src/views/common/pdfViewModal.vue

+ 1 - 1
public/version.json

@@ -1,5 +1,5 @@
 {
   "message": "发现有新版本发布,确定更新系统?",
   "vendorJsVersion": "",
-  "version": 1655437967255
+  "version": 1655444839913
 }

+ 84 - 67
src/core/directives/dragModal.js

@@ -1,76 +1,93 @@
 import Vue from 'vue'
-/*定义a-modal弹框可拖拽*/
-const dragModal = Vue.directive('drag-modal', (el, bindings, vnode) => {
-    Vue.nextTick(() => {
-        let { visible, destroyOnClose } = vnode.componentInstance
-        // 防止未定义 destroyOnClose 关闭弹窗时dom未被销毁,指令被重复调用
-        if (!visible) return
-        let modal = el.getElementsByClassName('ant-modal')[0]
 
-        let header = el.getElementsByClassName('ant-modal-header')[0]
-        let left = 0
-        let top = 0
-        // 未定义 destroyOnClose 时,dom未被销毁,关闭弹窗再次打开,弹窗会停留在上一次拖动的位置
-        if (!destroyOnClose) {
-            left = modal.left || 0
-            top = modal.top || 0
-        }
-        header.onmousedown = e => {
-            let startX = e.clientX;
-            let startY = e.clientY;
-            header.left = header.offsetLeft;
-            header.top = header.offsetTop;
-            header.style.cursor = 'move'
-            el.onmousemove = event => {
-                let endX = event.clientX;
-                let endY = event.clientY;
-                  // 左右拖拽的距离
-                modal.left = header.left + (endX - startX) + left; 
-                //上下拖拽的距离
-                modal.top = header.top + (endY - startY) + top;
-                //屏幕边界X
-                const screenX = (document.body.offsetWidth + 17 - modal.offsetWidth) / 2
-                //屏幕边界Y
-                const screenY = (document.body.offsetHeight - modal.offsetHeight) / 2
-        
-                //判断拖拽是否超出屏幕  X
-                if (Math.abs(modal.left) > screenX) {
-                    if (modal.left < 0) {
-                        modal.style.left = -screenX + 'px'
-                    }
-                    if (modal.left > 0) {
-                        modal.style.left = screenX + 'px'
-                    }
+// 弹窗拖拽属性
+/**
+ * @directive 自定义属性
+ * @todo 弹窗拖拽属性
+ * @desc 使用在弹窗内部任意加载的html添加v-drag
+ * @param .ant-modal-header 弹窗头部用来拖动的属性
+ * @param .ant-modal 拖动的属性
+*/
+const dragModal = Vue.directive('drag', (el, binding, vnode, oldVnode) => {
+  // inserted (el, binding, vnode, oldVnode) {
+  Vue.nextTick(() => {
+    const isThemeModal = el.classList.contains('grid-theme')
+    const dialogHeaderEl = isThemeModal ? el.querySelector('.ant-tabs-bar') : document.querySelector('.ant-modal-header')
+    const dragDom = isThemeModal ? el.querySelector('.ant-modal') : document.querySelector('.ant-modal')
+    // dialogHeaderEl.style.cursor = 'move';
+    dialogHeaderEl.style.cssText += ';cursor:move;'
+    // dragDom.style.cssText += ';top:0px;'
+    
+    // 获取原有属性 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, false)[attr]
+      }
+    })()
+
+    dialogHeaderEl.onmousedown = (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
+
+      const screenWidth = document.body.clientWidth // body当前宽度
+      const screenHeight = document.documentElement.clientHeight // 可见区域高度(应为body高度,可某些环境下无法获取)
+
+      const dragDomWidth = dragDom.offsetWidth // 对话框宽度
+      const dragDomheight = dragDom.offsetHeight // 对话框高度
+
+      const minDragDomLeft = dragDom.offsetLeft
+      const maxDragDomLeft = screenWidth - dragDom.offsetLeft - dragDomWidth - (isThemeModal ? 10 : 0)
 
-                } else {
-                    modal.style.left = modal.left + 'px'
-                }
-                //判断拖拽是否超出屏幕  Y
-                if (Math.abs(modal.top) > screenY) {
-                    if (modal.top < 0) {
-                        modal.style.top = -screenY + 'px'
-                    }
-                    if (modal.top > 0) {
-                        modal.style.top = screenY + 'px'
-                    }
+      const minDragDomTop = dragDom.offsetTop
+      const maxDragDomTop = screenHeight - dragDom.offsetTop - dragDomheight - (isThemeModal ? 10 : 0)
 
-                } else {
-                    modal.style.top = modal.top + 'px'
-                }
+      // 获取到的值带px 正则匹配替换
+      let styL = sty(dragDom, 'left')
+      let styT = sty(dragDom, 'top')
 
-            }
-            el.onmouseup = event => {
-                left = modal.left
-                top = modal.top
-                el.onmousemove = null;
-                el.onmouseup = null;
-                header.style.cursor = 'auto'
-                header.releaseCapture && header.releaseCapture();
-            }
-            header.setCapture && header.setCapture();
-            return false
+      // 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 (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) {
+        // 通过事件委托,计算移动的距离
+        let left = e.clientX - disX
+        let top = e.clientY - disY
+
+        // 边界处理
+        if (-(left) > minDragDomLeft) {
+          left = -(minDragDomLeft)
+        } else if (left > maxDragDomLeft) {
+          left = maxDragDomLeft
         }
-    })
+
+        if (-(top) > minDragDomTop) {
+          top = -(minDragDomTop)
+        } else if (top > maxDragDomTop) {
+          top = maxDragDomTop
+        }
+        // 移动当前元素
+        dragDom.style.cssText += `;left:${left + styL}px;top:${top + styT}px;`
+      }
+
+      document.onmouseup = function (e) {
+        document.onmousemove = null
+        document.onmouseup = null
+        dragDom.releaseCapture && dragDom.releaseCapture();
+      }
+       dragDom.setCapture && dragDom.setCapture();
+    }
+  })
 })
 
 export default dragModal

+ 1 - 1
src/views/common/pdfViewModal.vue

@@ -1,7 +1,7 @@
 <template>
   <a-modal
     centered
-    v-drag-modal
+    v-drag
     class="common-pdfView-modal"
     :footer="null"
     :maskClosable="false"