Merged PR 1964: feat(shared-filter): add canApply input to filter input menu components

feat(shared-filter): add canApply input to filter input menu components

Add canApply input parameter to FilterInputMenuButtonComponent and FilterInputMenuComponent to control when filter actions can be applied. Update RemissionListDepartmentElementsComponent to use canApply flag and implement rollback functionality when filter menu is closed without applying changes.

- Add canApply input to FilterInputMenuButtonComponent with default false
- Pass canApply parameter through to FilterInputMenuComponent
- Update remission department filter to use canApply=true
- Implement rollbackFilterInput method for filter state management
- Change selectedDepartments to selectedDepartment for single selection
- Update capacity resource to work with single department selection

Ref: #5320

libs/remission/feature/remission-list/src/lib/remission-list-department-elements/remission-list-department-elements.component.html

@@ -1,11 +1,12 @@
 <filter-input-menu-button
   [filterInput]="filterDepartmentInput()"
-  [label]="selectedDepartments()"
-  [commitOnClose]="true"
+  [label]="selectedDepartment()"
+  [canApply]="true"
+  (closed)="rollbackFilterInput()"
 >
 </filter-input-menu-button>
 
-@if (selectedDepartments()) {
+@if (selectedDepartment()) {
   <ui-toolbar class="ui-toolbar-rounded">
     <span class="flex gap-1 isa-text-body-2-regular"
       ><span *uiSkeletonLoader="capacityFetching()" class="isa-text-body-2-bold"

libs/remission/feature/remission-list/src/lib/remission-list-department-elements/remission-list-department-elements.component.ts

@@ -52,14 +52,17 @@ export class RemissionListDepartmentElementsComponent {
   });
 
   /**
-   * Computed signal for the selected departments from the filter input.
-   * If the input type is Checkbox and has selected values, it returns a comma-separated string.
-   * Otherwise, it returns undefined.
+   * Computed signal to get the selected department from the filter input.
+   * Returns the committed value if department is selected, otherwise a default label.
+   * @returns {string} The selected departments or a default label.
    */
-  selectedDepartments = computed(() => {
+  selectedDepartment = computed(() => {
     const input = this.filterDepartmentInput();
-    if (input?.type === InputType.Checkbox && input?.selected?.length > 0) {
-      return input?.selected?.filter((selected) => !!selected).join(', ');
+    if (input && input.type === InputType.Checkbox) {
+      const committedValue = this.#filterService.queryParams()[input.key];
+      if (input.selected.length > 0 && committedValue) {
+        return committedValue;
+      }
     }
     return 'Abteilung auswählen';
   });
@@ -71,9 +74,7 @@ export class RemissionListDepartmentElementsComponent {
    */
   capacityResource = createRemissionCapacityResource(() => {
     return {
-      departments: this.selectedDepartments()
-        ?.split(',')
-        .map((d) => d.trim()),
+      departments: [this.selectedDepartment()],
     };
   });
 
@@ -144,4 +145,9 @@ export class RemissionListDepartmentElementsComponent {
         })
       : 0;
   });
+
+  rollbackFilterInput() {
+    const inputKey = this.filterDepartmentInput()?.key;
+    this.#filterService.rollbackInput([inputKey!]);
+  }
 }