fix(grid): update ghost record handling for disabled rows - master (#16763)

Author: IMinchev64

projects/igniteui-angular/grids/core/src/grid-public-row.ts

@@ -181,8 +181,12 @@ abstract class BaseRow implements RowType {
         return false;
     }
 
+    /**
+     * Gets whether the row is disabled.
+     * A disabled row represents a ghost placeholder created by row pinning.
+     */
     public get disabled(): boolean {
-        return this.grid.isGhostRecord(this.data);
+        return this.grid.isGhostRecordAtIndex(this.index);
     }
 
     /**

projects/igniteui-angular/grids/grid/src/grid-base.directive.ts

@@ -7878,8 +7878,10 @@ export abstract class IgxGridBaseDirective implements GridType,
      * If record is pinned but is not in pinned area then it is a ghost record.
      *
      * @param dataViewIndex The index of that record in the data view.
+     * @hidden
+     * @internal
      */
-    private isGhostRecordAtIndex(dataViewIndex) {
+    public isGhostRecordAtIndex(dataViewIndex) {
         const isPinned = this.isRecordPinned(this.dataView[dataViewIndex]);
         const isInPinnedArea = this.isRecordPinnedByViewIndex(dataViewIndex);
         return isPinned && !isInPinnedArea;

projects/igniteui-angular/grids/grid/src/grid-row-pinning.spec.ts

@@ -397,6 +397,18 @@ describe('Row Pinning #grid', () => {
             expect(grid.gridAPI.get_row_by_index(1).key).toBe(fix.componentInstance.data[1]);
         });
 
+        it('should mark ghost placeholder rows as disabled in RowType API.', () => {
+            grid.pinRow(fix.componentInstance.data[0]);
+            fix.detectChanges();
+
+            const renderedRow = grid.rowList.toArray().find(r => r.index === 1);
+            const rowType = grid.getRowByIndex(1);
+
+            expect(renderedRow).toBeDefined();
+            expect(renderedRow.disabled).toBeTrue();
+            expect(rowType.disabled).toBeTrue();
+        });
+
         it('should search in both pinned and unpinned rows.', () => {
             // pin 1st row
             let row = grid.gridAPI.get_row_by_index(0);