[DataSpell] [DS-7097] Add an ability to unselect the cells in data grid

(cherry picked from commit 2edd8c1385e84fbc9b497519802ca519f185c429)

GitOrigin-RevId: c3b1f8172869b00399d751fca20cea3a1e4b02f3

grid/core-impl/src/datagrid/SelectionModel.java

@@ -46,6 +46,8 @@ public interface SelectionModel<Row, Column> {
 
   void selectWholeColumn();
 
+  void clearSelection();
+
   @NotNull
   ModelIndex<Row> getSelectedRow();
 

grid/impl/src/datagrid/SelectionModelUtil.java

@@ -119,6 +119,10 @@ public final class SelectionModelUtil {
     public void selectWholeColumn() {
     }
 
+    @Override
+    public void clearSelection() {
+    }
+
     @Override
     public @NotNull ModelIndex<GridRow> getSelectedRow() {
       return ModelIndex.forRow(myGrid, -1);

grid/impl/src/run/ui/table/TableSelectionModel.java

@@ -201,6 +201,11 @@ class TableSelectionModel implements SelectionModel<GridRow, GridColumn>, Select
     myGrid.getAutoscrollLocker().runWithLock(() -> setRowSelectionInterval(myTable.getRowCount() - 1, 0));
   }
 
+  @Override
+  public void clearSelection() {
+    myTable.clearSelection();
+  }
+
   private void setSelection(boolean columns, int[] array) {
     if (myTable.isTransposed() && columns || !myTable.isTransposed() && !columns) {
       setSelection(myTable.getSelectionModel(), false, myTable.getRowCount() - 1, array);

grid/impl/src/run/ui/treetable/TreeTableSelectionModel.java

@@ -182,6 +182,11 @@ class TreeTableSelectionModel implements SelectionModel<GridRow, GridColumn>, Se
     });
   }
 
+  @Override
+  public void clearSelection() {
+    myView.getComponent().getTree().clearSelection();
+  }
+
   @Override
   public @NotNull ModelIndex<GridRow> getSelectedRow() {
     TreePath path = myView.getComponent().getTree().getSelectionPath();

platform/platform-resources-en/src/messages/ActionsBundle.properties

@@ -2967,6 +2967,7 @@ action.RestoreProtocolHandler.text=Register Gateway Protocol
 action.GatewayPluginsAction.text=Manage Providers
 action.DSOpenConsole.text=Open Python Console
 action.CopyTableGridAction.text=Copy Data
+action.ResetTableGridSelectionAction.text=Clear Selection
 
 action.plugins.autoupdate.repository.view.text=View Plugins Auto-Update Repository
 action.ToolWindowShowNamesAction.text=Show Tool Window Names