Add filter duplication option.

ui-ngx/src/app/modules/home/components/filter/filters-dialog.component.html

@@ -64,6 +64,15 @@
                   matTooltipPosition="above">
             <mat-icon>edit</mat-icon>
           </button>
+          <button [disabled]="isLoading$ | async"
+                  mat-icon-button color="primary"
+                  style="min-width: 40px;"
+                  type="button"
+                  (click)="duplicateFilter($index)"
+                  matTooltip="{{ 'filter.duplicate-filter' | translate }}"
+                  matTooltipPosition="above">
+            <mat-icon>content_copy</mat-icon>
+          </button>
           <button [disabled]="isLoading$ | async"
                   mat-icon-button color="primary"
                   style="min-width: 40px;"

ui-ngx/src/app/modules/home/components/filter/filters-dialog.component.ts

@@ -36,7 +36,7 @@ import { UtilsService } from '@core/services/utils.service';
 import { TranslateService } from '@ngx-translate/core';
 import { ActionNotificationShow } from '@core/notification/notification.actions';
 import { DialogService } from '@core/services/dialog.service';
-import { deepClone, isUndefined } from '@core/utils';
+import { deepClone, isNumber, isUndefined } from '@core/utils';
 import { Filter, Filters, KeyFilterInfo } from '@shared/models/query/query.models';
 import { FilterDialogComponent, FilterDialogData } from '@home/components/filter/filter-dialog.component';
 
@@ -64,6 +64,8 @@ export class FiltersDialogComponent extends DialogComponent<FiltersDialogCompone
 
   filterToWidgetsMap: {[filterId: string]: Array<string>} = {};
 
+  filterNames: Set<string> = new Set<string>();
+
   filtersFormGroup: FormGroup;
 
   submitted = false;
@@ -112,6 +114,7 @@ export class FiltersDialogComponent extends DialogComponent<FiltersDialogCompone
       if (isUndefined(filter.editable)) {
         filter.editable = true;
       }
+      this.filterNames.add(filter.filter);
       filterControls.push(this.createFilterFormControl(filterId, filter));
     }
 
@@ -158,10 +161,37 @@ export class FiltersDialogComponent extends DialogComponent<FiltersDialogCompone
         message, this.translate.instant('action.close'), true);
     } else {
       (this.filtersFormGroup.get('filters') as FormArray).removeAt(index);
+      this.filterNames.delete(filter.filter);
       this.filtersFormGroup.markAsDirty();
     }
   }
 
+  private getNextDuplicatedName(filterName: string): string {
+    const suffix = ' - copy ';
+    let counter = 0;
+    while (++counter < Number.MAX_SAFE_INTEGER) {
+      const newName = `${filterName}${suffix}${counter}`;
+      if (!this.filterNames.has(newName)) {
+        return newName;
+      }
+    }
+
+    return null;
+  }
+
+  duplicateFilter(index: number) {
+    const originalFilter = (this.filtersFormGroup.get('filters').value as any[])[index];
+    const newFilterName = this.getNextDuplicatedName(originalFilter.filter);
+    if (newFilterName) {
+      const duplicatedFilter = deepClone(originalFilter);
+      duplicatedFilter.id = this.utils.guid();
+      duplicatedFilter.filter = newFilterName;
+      (this.filtersFormGroup.get('filters') as FormArray).
+        insert(index + 1, this.createFilterFormControl(duplicatedFilter.id, duplicatedFilter));
+      this.filterNames.add(duplicatedFilter.filter);
+    }
+  }
+
   public addFilter() {
     this.openFilterDialog(-1);
   }
@@ -176,6 +206,7 @@ export class FiltersDialogComponent extends DialogComponent<FiltersDialogCompone
     const filtersArray = this.filtersFormGroup.get('filters').value as any[];
     if (!isAdd) {
       filter = filtersArray[index];
+      this.filterNames.delete(filter.filter);
     }
     this.dialog.open<FilterDialogComponent, FilterDialogData,
       Filter>(FilterDialogComponent, {
@@ -197,6 +228,7 @@ export class FiltersDialogComponent extends DialogComponent<FiltersDialogCompone
           filterFormControl.get('editable').patchValue(result.editable);
           filterFormControl.get('keyFilters').patchValue(result.keyFilters);
         }
+        this.filterNames.add(result.filter);
         this.filtersFormGroup.markAsDirty();
       }
     });

ui-ngx/src/assets/locale/locale.constant-en_US.json

@@ -2300,6 +2300,7 @@
          "ignore-case": "ignore case",
          "value": "Value",
          "remove-filter": "Remove filter",
+         "duplicate-filter": "Duplicate filter",
          "preview": "Filter preview",
          "no-filters": "No filters configured",
          "add-filter": "Add filter",