修复拖拽bug

src/components/ShowFile/ShowFile.vue

@@ -1005,30 +1005,32 @@
             }
 
             child.ondragstart = function(e){
-              let count = _this.selectRowData.length
-              if(_this.selectRowData.length >= 99){
-                count = 99
+              if(_this.fileListScrollTop === 0){
+                let count = _this.selectRowData.length
+                if(_this.selectRowData.length >= 99){
+                  count = 99
+                }
+                let dragImage = document.getElementById('dragImage');
+                dragImage.src = require(`@/assets/img/move-file/move-file${count}.png`)
+
+                e.dataTransfer.setDragImage(dragImage, 10, 10);
+
+                Bus.$emit('onDragStart', true)
+                // 避免和画矩形选区冲突
+                _this.drawFlag = false
+                let rectangle = document.getElementById('rectangle1')
+                if(rectangle){
+                  document.getElementById('v-draw-rectangle').removeChild(rectangle)
+                }
+
+                dragged = e.path[0]
+                draggedIndex = e.path[0].rowIndex
+                // 只有选中的才能拖拽
+                _this.cellMouseIndex = -1
+                // dragged.style.cursor = 'grabbing'
+                dragged.style.borderRadius = '10px'
+                dragBackCorlor = dragged.style.backgroundColor
               }
-              let dragImage = document.getElementById('dragImage');
-              dragImage.src = require(`@/assets/img/move-file/move-file${count}.png`)
-
-              e.dataTransfer.setDragImage(dragImage, 10, 10);
-
-              Bus.$emit('onDragStart', true)
-              // 避免和画矩形选区冲突
-              _this.drawFlag = false
-              let rectangle = document.getElementById('rectangle1')
-              if(rectangle){
-                document.getElementById('v-draw-rectangle').removeChild(rectangle)
-              }
-
-              dragged = e.path[0]
-              draggedIndex = e.path[0].rowIndex
-              // 只有选中的才能拖拽
-              _this.cellMouseIndex = -1
-              dragged.style.cursor = 'grabbing'
-              dragged.style.borderRadius = '10px'
-              dragBackCorlor = dragged.style.backgroundColor
             }
             child.ondragend = function(){
               Bus.$emit('onDragStart', false)
@@ -1502,6 +1504,7 @@
       },
       tableBodyScroll(table, e) {
         this.fileListScrollTop = e.target.scrollTop
+        Bus.$emit("fileListScrollTop",this.fileListScrollTop)
         let scrollBottom = e.target.scrollHeight-e.target.clientHeight-e.target.scrollTop;
         if(scrollBottom < 200){
           if(!this.finished){

src/components/SimpleUploader/globalUploader.vue

@@ -154,6 +154,8 @@
         pc: true,
         dragover: false,
         isDragStart: false,
+        fileListScrollTop: 0,
+        dragoverLoop: null,
       }
     },
     computed: {
@@ -169,26 +171,42 @@
       let dropbox = document.body
 
       document.body.ondragstart = function(e){
-        return e.target.slot === 'jmal';
+        return e.target.slot === 'jmal' && that.fileListScrollTop === 0;
       }
 
       dropbox.addEventListener("dragenter", function(e){
         e.stopPropagation();
         e.preventDefault();
       }, false);
+
       dropbox.addEventListener("dragover", function(e){
         e.stopPropagation();
         e.preventDefault();
+        clearInterval(that.dragoverLoop)
         if(!that.isDragStart){
           that.dragover = true
         }
+        that.dragoverLoop = setTimeout(function () {
+          that.dragover = false
+        },100)
       }, false);
+
+      dropbox.addEventListener("ondragleave", function(e){
+        e.stopPropagation();
+        e.preventDefault();
+        that.dragover = false
+      }, false);
+
       dropbox.addEventListener("drop", function(e){
         e.stopPropagation();
         e.preventDefault();
         that.dragover = false
       }, false);
 
+      Bus.$on('fileListScrollTop', fileListScrollTop => {
+        this.fileListScrollTop = fileListScrollTop
+      })
+
       Bus.$on('onDragStart', isDragStart => {
         this.isDragStart = isDragStart
       })
@@ -233,6 +251,9 @@
         }
       },
       onFilesAdded(files) {
+        if(files.length === 0){
+          return
+        }
         this.fileListLength = this.uploader.fileList.length
         const filePaths = this.uploader.filePaths
         const paths = Object.keys(filePaths)