optimize: change granularity is more fine-grained, only the changed cell elements are modified.

lib/ui/grid/column.js

@@ -133,7 +133,16 @@ export class GridColumn {
     }
 
     /**
-     * 单元格离开编辑元素时触发，需要由行包装对象的 `__editing` 来确定是否触发。
+     * 单元格编辑状态发生改变时调用的方法
+     * @method
+     * @name GridColumn.setEditing
+     * @param {HTMLElement} element - 单元格元素
+     * @param {boolean} editing - 是否处于编辑状态
+     * @virtual
+     */
+
+    /**
+     * 单元格离开编辑元素时调用的方法，需要由行包装对象的 `__editing` 来确定是否触发。
      * @method
      * @name GridColumn.leaveEdit
      * @param {HTMLElement} element - 单元格元素

lib/ui/grid/grid.js

@@ -618,18 +618,6 @@ export class Grid {
          * @private
          */
         startIndex: 0,
-        /**
-         * 旧选择索引数组
-         * @type {number[]}
-         * @private
-         */
-        oldSelectedIndexes: null,
-        /**
-         * 旧虚模式头部索引
-         * @type {number}
-         * @private
-         */
-        oldIndex: null,
         /**
          * 当前滚动上边距
          * @type {number}
@@ -2523,17 +2511,6 @@ export class Grid {
     _fillRows(rows, cols, widths) {
         const startIndex = this._var.startIndex;
         const selectedIndexes = this._var.selectedIndexes;
-        // const stateChanged =
-        //     this._var.oldIndex !== startIndex ||
-        //     selectedIndexes == null ||
-        //     this._var.oldSelectedIndexes?.length !== selectedIndexes.length ||
-        //     this._var.oldSelectedIndexes.find((s, i) => s !== selectedIndexes[i]) != null;
-        // if (stateChanged) {
-        //     this._var.oldIndex = startIndex;
-        //     if (selectedIndexes != null) {
-        //         this._var.oldSelectedIndexes = selectedIndexes.slice();
-        //     }
-        // }
         const offset = this.expandable ? 1 : 0;
         const readonly = this.readonly;
         rows.forEach((row, i) => {
@@ -2611,12 +2588,7 @@ export class Grid {
                 if (cell == null) {
                     return;
                 }
-                let virtualCell;
+                const virtualCell = virtualRow.cells[j];
-                if (stateChanged) {
-                    virtualRow.cells[j] = virtualCell = {};
-                } else {
-                    virtualCell = virtualRow.cells[j];
-                }
                 let val;
                 if (col.text != null) {
                     val = col.text;
@@ -2693,7 +2665,10 @@ export class Grid {
                     virtualCell.value = val;
                     type.setValue(element, val, vals, col, this);
                 }
-                if (typeof type.setEnabled === 'function') {
+                if (stateChanged && typeof type.setEditing === 'function') {
+                    type.setEditing(element, virtualRow.editing);
+                }
+                if (virtualRow.editing && typeof type.setEnabled === 'function') {
                     let enabled;
                     if (readonly) {
                         enabled = false;