[CST-5182 Fix issue with grid view mode

Author: atarix83

src/app/core/shared/search/search-configuration.service.ts

@@ -23,6 +23,7 @@ import { createSuccessfulRemoteDataObject$ } from '../../../shared/remote-data.u
 import { SearchConfig, SortConfig } from './search-filters/search-config.model';
 import { SearchService } from './search.service';
 import { PaginationService } from '../../pagination/pagination.service';
+import { ViewMode } from '../view-mode.model';
 
 /**
  * Service that performs all actions that have to do with the current search configuration
@@ -196,6 +197,15 @@ export class SearchConfigurationService implements OnDestroy {
     return this.routeService.getQueryParamsWithPrefix('f.');
   }
 
+  /**
+   * @returns {Observable<string>} Emits the current view mode
+   */
+  getCurrentViewMode(defaultViewMode: ViewMode) {
+    return this.routeService.getQueryParameterValue('view').pipe(map((viewMode) => {
+      return viewMode || defaultViewMode;
+    }));
+  }
+
   /**
    * Creates an observable of SearchConfig every time the configuration stream emits.
    * @param configuration The search configuration
@@ -285,7 +295,8 @@ export class SearchConfigurationService implements OnDestroy {
       this.getQueryPart(defaults.query),
       this.getDSOTypePart(),
       this.getFiltersPart(),
-      this.getFixedFilterPart()
+      this.getFixedFilterPart(),
+      this.getViewModePart(defaults.view)
     ).subscribe((update) => {
       const currentValue: SearchOptions = this.searchOptions.getValue();
       const updatedValue: SearchOptions = Object.assign(new PaginatedSearchOptions({}), currentValue, update);
@@ -308,7 +319,8 @@ export class SearchConfigurationService implements OnDestroy {
       this.getQueryPart(defaults.query),
       this.getDSOTypePart(),
       this.getFiltersPart(),
-      this.getFixedFilterPart()
+      this.getFixedFilterPart(),
+      this.getViewModePart(defaults.view)
     ).subscribe((update) => {
       const currentValue: PaginatedSearchOptions = this.paginatedSearchOptions.getValue();
       const updatedValue: PaginatedSearchOptions = Object.assign(new PaginatedSearchOptions({}), currentValue, update);
@@ -403,4 +415,13 @@ export class SearchConfigurationService implements OnDestroy {
       }),
     );
   }
+
+  /**
+   * @returns {Observable<Params>} Emits the current view mode as a partial SearchOptions object
+   */
+  private getViewModePart(defaultViewMode: ViewMode): Observable<any> {
+    return this.getCurrentViewMode(defaultViewMode).pipe(map((view) => {
+      return { view };
+    }));
+  }
 }

src/app/shared/search/models/paginated-search-options.model.ts

@@ -4,6 +4,7 @@ import { isNotEmpty } from '../../empty.util';
 import { SearchOptions } from './search-options.model';
 import { SearchFilter } from './search-filter.model';
 import { DSpaceObjectType } from '../../../core/shared/dspace-object-type.model';
+import { ViewMode } from '../../../core/shared/view-mode.model';
 
 /**
  * This model class represents all parameters needed to request information about a certain page of a search request, in a certain order
@@ -12,10 +13,11 @@ export class PaginatedSearchOptions extends SearchOptions {
   pagination?: PaginationComponentOptions;
   sort?: SortOptions;
 
-  constructor(options: {configuration?: string, scope?: string, query?: string, dsoTypes?: DSpaceObjectType[], filters?: SearchFilter[], fixedFilter?: any, pagination?: PaginationComponentOptions, sort?: SortOptions}) {
+  constructor(options: {configuration?: string, scope?: string, query?: string, dsoTypes?: DSpaceObjectType[], filters?: SearchFilter[], fixedFilter?: any, pagination?: PaginationComponentOptions, sort?: SortOptions, view?: ViewMode}) {
     super(options);
     this.pagination = options.pagination;
     this.sort = options.sort;
+    this.view = options.view;
   }
 
   /**