feat(IgxGrid): close advanced filter dialog when press escape #7243

Author: ddincheva

projects/igniteui-angular/src/lib/grids/filtering/advanced-filtering/advanced-filtering-dialog.component.ts

@@ -797,9 +797,11 @@ export class IgxAdvancedFilteringDialogComponent implements AfterViewInit, OnDes
      */
     public onKeyDown(eventArgs: KeyboardEvent) {
         eventArgs.stopPropagation();
-        if (!this.contextMenuToggle.collapsed &&
-            (eventArgs.key === KEYS.ESCAPE || eventArgs.key === KEYS.ESCAPE_IE)) {
+        const key = eventArgs.key;
+        if (!this.contextMenuToggle.collapsed && (key === KEYS.ESCAPE || key === KEYS.ESCAPE_IE)) {
             this.clearSelection();
+        } else if (key === KEYS.ESCAPE || key === KEYS.ESCAPE_IE) {
+            this.closeDialog();
         }
     }
 
@@ -1072,6 +1074,9 @@ export class IgxAdvancedFilteringDialogComponent implements AfterViewInit, OnDes
         if (this._overlayComponentId) {
             this._overlayService.hide(this._overlayComponentId);
         }
+        if (this.grid.navigation.activeNode && this.grid.navigation.activeNode.row === -1) {
+            (this.grid as any).theadRow.nativeElement.focus();
+        }
     }
 
     /**