排课窗口单元格单击双选问题修复

frontend/src/views/teachBusiness/schedulingWindow/index.vue

@@ -180,7 +180,7 @@
                       :class="slotClass(d, jc)"
                       :title="slotTitle(d, jc)"
                       @mousedown.prevent="startDrag(d.fi, jc, d, $event)"
-                      @mouseenter="hoverCell(d.fi, jc)"
+                      @mouseenter="hoverCell(d.fi, jc, $event)"
                       @dblclick="dblclickCell(d, jc)"
                       @dragover="onCellDragover(d, jc, $event)"
                       @dragleave="onCellDragleave(d, jc)"
@@ -227,7 +227,7 @@
                       :class="slotClass(d, jc)"
                       :title="slotTitle(d, jc)"
                       @mousedown.prevent="startDrag(d.fi, jc, d, $event)"
-                      @mouseenter="hoverCell(d.fi, jc)"
+                      @mouseenter="hoverCell(d.fi, jc, $event)"
                       @dblclick="dblclickCell(d, jc)"
                       @dragover="onCellDragover(d, jc, $event)"
                       @dragleave="onCellDragleave(d, jc)"
@@ -608,6 +608,8 @@ export default {
       dragging: false,
       /** 本次拖拽是否为追加（Ctrl / Meta） */
       additiveDrag: false,
+      /** 按下时的指针位置，用于忽略首次聚焦滚动触发的误 hover */
+      dragOrigin: null,
       /** 当前聚焦格（⑨ 当前格子编排信息） */
       focusedCell: null,
       /** 视图模式：week 单周 / all 全学期 / h 横版 */
@@ -840,6 +842,7 @@ export default {
         this.dragging = false
         this.dragStart = null
         this.dragEnd = null
+        this.dragOrigin = null
         // 尽量保留原来选中的课程
         const list = this.courses
         this.currentCourse = keepBh ? (list.find(c => c.sskcbh === keepBh) || list[0] || null) : (list[0] || null)
@@ -1024,18 +1027,29 @@ export default {
       // 拖拽调课模式下按住格子只做聚焦，课次块用 HTML5 拖拽移动
       if (this.moveMode) {
         this.focusCell(day.date, jc)
-        if (this.$refs.gridWrap && this.$refs.gridWrap.focus) this.$refs.gridWrap.focus()
+        const wrap = this.$refs.gridWrap
+        if (wrap && wrap.focus) wrap.focus({ preventScroll: true })
         return
       }
       this.dragging = true
       this.additiveDrag = !!(ev && (ev.ctrlKey || ev.metaKey))
       this.dragStart = { fi, jc }
       this.dragEnd = { fi, jc }
+      this.dragOrigin = ev ? { x: ev.clientX, y: ev.clientY } : null
       this.focusCell(day.date, jc)
-      if (this.$refs.gridWrap && this.$refs.gridWrap.focus) this.$refs.gridWrap.focus()
+      const wrap = this.$refs.gridWrap
+      if (wrap && wrap.focus) wrap.focus({ preventScroll: true })
     },
-    hoverCell(fi, jc) {
+    hoverCell(fi, jc, ev) {
       if (!this.dragging) return
+      // 刚进入页面首次单击会 focus 课表导致滚动，DOM 从指针下经过时误发 mouseenter。
+      // 指针未真正移动时不把结束格改成别的格子。
+      const origin = this.dragOrigin
+      if (origin && ev) {
+        const dx = Math.abs(ev.clientX - origin.x)
+        const dy = Math.abs(ev.clientY - origin.y)
+        if (dx < 6 && dy < 6) return
+      }
       this.dragEnd = { fi, jc }
     },
     finishDrag() {
@@ -1047,6 +1061,7 @@ export default {
       this.dragStart = null
       this.dragEnd = null
       this.additiveDrag = false
+      this.dragOrigin = null
       if (!s || !e) return
       const fiFrom = Math.min(s.fi, e.fi)
       const fiTo = Math.max(s.fi, e.fi)