feat:Geomerty adds two function: undoEditcheck and redoEditcheck, which are used to determine whether the edit can continue to undo and redo, respectively (#2483)

Author: minemine-m

packages/map/src/geometry/editor/GeometryEditor.ts

@@ -1476,7 +1476,7 @@ class GeometryEditor extends Eventable(Class) {
      * @return {Object} map view
      */
     undo(): any {
-        if (!this._history || this._historyPointer === 0) {
+        if (this._isundoEdit()) {
             return this;
         }
         const record = this._history[--this._historyPointer];
@@ -1491,7 +1491,7 @@ class GeometryEditor extends Eventable(Class) {
      * @return {Object} map view
      */
     redo(): any {
-        if (!this._history || this._historyPointer === this._history.length - 1) {
+        if (this._isRedoEdit()) {
             return this;
         }
         const record = this._history[++this._historyPointer];
@@ -1549,6 +1549,18 @@ class GeometryEditor extends Eventable(Class) {
         }
         this._updating = updating;
     }
+    _isRedoEdit(): boolean {
+        if (!this._history || this._historyPointer === this._history.length - 1) {
+            return true;
+        }
+        return false; 
+    }
+    _isundoEdit(): boolean {
+        if (!this._history || this._historyPointer === 0) {
+            return true;
+        }
+        return false; 
+    }
 
 }
 

packages/map/src/geometry/ext/Geometry.Edit.ts

@@ -195,5 +195,27 @@ Geometry.include(/** @lends Geometry.prototype */ {
             return this._editor.isEditing();
         }
         return false;
+    },
+    /**
+ * 编辑是否已经全部撤回
+ * @english
+ * Whether the geometry is being edited.
+ * @return {boolean}
+ */
+    undoEditcheck(): boolean {
+        if (this.isEditing()) {
+            return this._editor._isundoEdit();
+        }
+    },
+    /**
+     * 编辑是否已经全部重做
+     * @english
+     * Whether the geometry is being edited.
+     * @return {boolean}
+     */
+    redoEditcheck(): boolean {
+        if (this.isEditing()) {
+            return this._editor._isRedoEdit();
+        }
     }
 });