feedback

resources/i18n/en.json5

@@ -196,6 +196,14 @@
 
   "browse.metadata.title": "Title",
 
+  "browse.metadata.author.breadcrumbs": "Browse by Author",
+
+  "browse.metadata.dateissued.breadcrumbs": "Browse by Date",
+
+  "browse.metadata.subject.breadcrumbs": "Browse by Subject",
+
+  "browse.metadata.title.breadcrumbs": "Browse by Title",
+
   "browse.startsWith.choose_start": "(Choose start)",
 
   "browse.startsWith.choose_year": "(Choose year)",
@@ -237,7 +245,6 @@
   "browse.title": "Browsing {{ collection }} by {{ field }} {{ value }}",
 
 
-
   "chips.remove": "Remove chip",
 
 

src/app/+browse-by/+browse-by-metadata-page/browse-by-metadata-page.component.spec.ts

@@ -20,7 +20,6 @@ import { Item } from '../../core/shared/item.model';
 import { DSpaceObjectDataService } from '../../core/data/dspace-object-data.service';
 import { Community } from '../../core/shared/community.model';
 import { MockRouter } from '../../shared/mocks/mock-router';
-import { ResourceType } from '../../core/shared/resource-type';
 import { createSuccessfulRemoteDataObject$ } from '../../shared/testing/utils';
 import { BrowseEntry } from '../../core/shared/browse-entry.model';
 import { VarDirective } from '../../shared/utils/var.directive';

src/app/+browse-by/browse-by-dso-breadcrumb.resolver.ts

@@ -0,0 +1,41 @@
+import { Injectable } from '@angular/core';
+import { Community } from '../core/shared/community.model';
+import { DSpaceObjectDataService } from '../core/data/dspace-object-data.service';
+import { DSOBreadcrumbsService } from '../core/breadcrumbs/dso-breadcrumbs.service';
+import { Collection } from '../core/shared/collection.model';
+import { ActivatedRouteSnapshot, RouterStateSnapshot } from '@angular/router';
+import { BreadcrumbConfig } from '../breadcrumbs/breadcrumb/breadcrumb-config.model';
+import { Observable } from 'rxjs';
+import { getRemoteDataPayload, getSucceededRemoteData } from '../core/shared/operators';
+import { map } from 'rxjs/operators';
+import { hasValue } from '../shared/empty.util';
+import { getDSOPath } from '../app-routing.module';
+
+/**
+ * The class that resolves the BreadcrumbConfig object for a DSpaceObject on a browse by page
+ */
+@Injectable()
+export class BrowseByDSOBreadcrumbResolver {
+  constructor(protected breadcrumbService: DSOBreadcrumbsService, protected dataService: DSpaceObjectDataService) {
+  }
+
+  /**
+   * Method for resolving a breadcrumb config object
+   * @param {ActivatedRouteSnapshot} route The current ActivatedRouteSnapshot
+   * @param {RouterStateSnapshot} state The current RouterStateSnapshot
+   * @returns BreadcrumbConfig object
+   */
+  resolve(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<BreadcrumbConfig<Community | Collection>> {
+    const uuid = route.queryParams.scope;
+    if (hasValue(uuid)) {
+      return this.dataService.findById(uuid).pipe(
+        getSucceededRemoteData(),
+        getRemoteDataPayload(),
+        map((object: Community | Collection) => {
+          return { provider: this.breadcrumbService, key: object, url: getDSOPath(object) };
+        })
+      );
+    }
+    return undefined;
+  }
+}

src/app/+browse-by/browse-by-guard.ts

@@ -37,24 +37,24 @@ export class BrowseByGuard implements CanActivate {
       return dsoAndMetadata$.pipe(
         map((dsoRD) => {
           const name = dsoRD.payload.name;
-          route.data = this.createData(title, id, metadataField, name, metadataTranslated, value);
+          route.data = this.createData(title, id, metadataField, name, metadataTranslated, value, route);
           return true;
         })
       );
     } else {
-      route.data = this.createData(title, id, metadataField, '', metadataTranslated, value);
+      route.data = this.createData(title, id, metadataField, '', metadataTranslated, value, route);
       return observableOf(true);
     }
   }
 
-  private createData(title, id, metadataField, collection, field, value) {
+  private createData(title, id, metadataField, collection, field, value, route) {
-    return {
+    return Object.assign({}, route.data, {
       title: title,
       id: id,
       metadataField: metadataField,
       collection: collection,
       field: field,
       value: hasValue(value) ? `"${value}"` : ''
-    }
+    });
   }
 }

src/app/+browse-by/browse-by-i18n-breadcrumb.resolver.ts

@@ -0,0 +1,28 @@
+import { Injectable } from '@angular/core';
+import { ActivatedRouteSnapshot, Resolve, RouterStateSnapshot } from '@angular/router';
+import { I18nBreadcrumbsService } from '../core/breadcrumbs/i18n-breadcrumbs.service';
+import { BreadcrumbConfig } from '../breadcrumbs/breadcrumb/breadcrumb-config.model';
+import { I18nBreadcrumbResolver } from '../core/breadcrumbs/i18n-breadcrumb.resolver';
+
+/**
+ * This class resolves a BreadcrumbConfig object with an i18n key string for a route
+ * It adds the metadata field of the current browse-by page
+ */
+@Injectable()
+export class BrowseByI18nBreadcrumbResolver extends I18nBreadcrumbResolver {
+  constructor(protected breadcrumbService: I18nBreadcrumbsService) {
+    super(breadcrumbService);
+  }
+
+  /**
+   * Method for resolving a browse-by i18n breadcrumb configuration object
+   * @param {ActivatedRouteSnapshot} route The current ActivatedRouteSnapshot
+   * @param {RouterStateSnapshot} state The current RouterStateSnapshot
+   * @returns BreadcrumbConfig object for a browse-by page
+   */
+  resolve(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): BreadcrumbConfig<string> {
+    const extendedBreadcrumbKey = route.data.breadcrumbKey + '.' + route.params.id;
+    route.data = Object.assign({}, route.data, { breadcrumbKey: extendedBreadcrumbKey });
+    return super.resolve(route, state);
+  }
+}

src/app/+browse-by/browse-by-routing.module.ts

@@ -2,12 +2,29 @@ import { RouterModule } from '@angular/router';
 import { NgModule } from '@angular/core';
 import { BrowseByGuard } from './browse-by-guard';
 import { BrowseBySwitcherComponent } from './+browse-by-switcher/browse-by-switcher.component';
+import { BrowseByDSOBreadcrumbResolver } from './browse-by-dso-breadcrumb.resolver';
+import { BrowseByI18nBreadcrumbResolver } from './browse-by-i18n-breadcrumb.resolver';
 
 @NgModule({
   imports: [
     RouterModule.forChild([
-      { path: ':id', component: BrowseBySwitcherComponent, canActivate: [BrowseByGuard], data: { title: 'browse.title' } }
+      {
-    ])
+        path: '',
+        resolve: { breadcrumb: BrowseByDSOBreadcrumbResolver },
+        children: [
+          {
+            path: ':id',
+            component: BrowseBySwitcherComponent,
+            canActivate: [BrowseByGuard],
+            resolve: { breadcrumb: BrowseByI18nBreadcrumbResolver },
+            data: { title: 'browse.title', breadcrumbKey: 'browse.metadata' }
+          }
+        ]
+      }])
+  ],
+  providers: [
+    BrowseByI18nBreadcrumbResolver,
+    BrowseByDSOBreadcrumbResolver
   ]
 })
 export class BrowseByRoutingModule {

src/app/+collection-page/edit-collection-page/edit-collection-page.routing.module.ts

@@ -31,23 +31,24 @@ import { I18nBreadcrumbResolver } from '../../core/breadcrumbs/i18n-breadcrumb.r
             component: CollectionMetadataComponent,
             data: {
               title: 'collection.edit.tabs.metadata.title',
-              hideReturnButton: true
+              hideReturnButton: true,
+              showBreadcrumbs: true
             }
           },
           {
             path: 'roles',
             component: CollectionRolesComponent,
-            data: { title: 'collection.edit.tabs.roles.title' }
+            data: { title: 'collection.edit.tabs.roles.title', showBreadcrumbs: true }
           },
           {
             path: 'source',
             component: CollectionSourceComponent,
-            data: { title: 'collection.edit.tabs.source.title' }
+            data: { title: 'collection.edit.tabs.source.title', showBreadcrumbs: true }
           },
           {
             path: 'curate',
             component: CollectionCurateComponent,
-            data: { title: 'collection.edit.tabs.curate.title' }
+            data: { title: 'collection.edit.tabs.curate.title', showBreadcrumbs: true }
           }
         ]
       }

src/app/+community-page/edit-community-page/edit-community-page.routing.module.ts

@@ -31,18 +31,19 @@ import { I18nBreadcrumbResolver } from '../../core/breadcrumbs/i18n-breadcrumb.r
             component: CommunityMetadataComponent,
             data: {
               title: 'community.edit.tabs.metadata.title',
-              hideReturnButton: true
+              hideReturnButton: true,
+              showBreadcrumbs: true
             }
           },
           {
             path: 'roles',
             component: CommunityRolesComponent,
-            data: { title: 'community.edit.tabs.roles.title' }
+            data: { title: 'community.edit.tabs.roles.title', showBreadcrumbs: true }
           },
           {
             path: 'curate',
             component: CommunityCurateComponent,
-            data: { title: 'community.edit.tabs.curate.title' }
+            data: { title: 'community.edit.tabs.curate.title', showBreadcrumbs: true }
           }
         ]
       }

src/app/+item-page/edit-item-page/edit-item-page.routing.module.ts

@@ -47,34 +47,34 @@ const ITEM_EDIT_MOVE_PATH = 'move';
               {
                 path: 'status',
                 component: ItemStatusComponent,
-                data: { title: 'item.edit.tabs.status.title' }
+                data: { title: 'item.edit.tabs.status.title', showBreadcrumbs: true }
               },
               {
                 path: 'bitstreams',
                 component: ItemBitstreamsComponent,
-                data: { title: 'item.edit.tabs.bitstreams.title' }
+                data: { title: 'item.edit.tabs.bitstreams.title', showBreadcrumbs: true }
               },
               {
                 path: 'metadata',
                 component: ItemMetadataComponent,
-                data: { title: 'item.edit.tabs.metadata.title' }
+                data: { title: 'item.edit.tabs.metadata.title', showBreadcrumbs: true }
               },
               {
                 path: 'relationships',
                 component: ItemRelationshipsComponent,
-                data: { title: 'item.edit.tabs.relationships.title' }
+                data: { title: 'item.edit.tabs.relationships.title', showBreadcrumbs: true }
               },
               {
                 path: 'view',
                 /* TODO - change when view page exists */
                 component: ItemBitstreamsComponent,
-                data: { title: 'item.edit.tabs.view.title' }
+                data: { title: 'item.edit.tabs.view.title', showBreadcrumbs: true }
               },
               {
                 path: 'curate',
                 /* TODO - change when curate page exists */
                 component: ItemBitstreamsComponent,
-                data: { title: 'item.edit.tabs.curate.title' }
+                data: { title: 'item.edit.tabs.curate.title', showBreadcrumbs: true }
               }
             ]
           },

src/app/+item-page/item-page.resolver.ts

@@ -27,7 +27,7 @@ export class ItemPageResolver implements Resolve<RemoteData<Item>> {
     return this.itemService.findById(route.params.id,
       followLink('owningCollection'),
       followLink('bundles'),
-      followLink('relationships')
+      followLink('relationships'),
     ).pipe(
       find((RD) => hasValue(RD.error) || RD.hasSucceeded),
     );

src/app/app-routing.module.ts

@@ -11,6 +11,7 @@ import { Collection } from './core/shared/collection.model';
 import { Item } from './core/shared/item.model';
 import { getItemPageRoute } from './+item-page/item-page-routing.module';
 import { getCollectionPageRoute } from './+collection-page/collection-page-routing.module';
+import { BrowseByDSOBreadcrumbResolver } from './+browse-by/browse-by-dso-breadcrumb.resolver';
 
 const ITEM_MODULE_PATH = 'items';
 

src/app/breadcrumbs/breadcrumb/breadcrumb-config.model.ts

@@ -1,7 +1,21 @@
 import { BreadcrumbsService } from '../../core/breadcrumbs/breadcrumbs.service';
 
+/**
+ * Interface for breadcrumb configuration objects
+ */
 export interface BreadcrumbConfig<T> {
+    /**
+     * The service used to calculate the breadcrumb object
+     */
     provider: BreadcrumbsService<T>;
+
+    /**
+     * The key that is used to calculate the breadcrumb display value
+     */
     key: T;
+
+    /**
+     * The url of the breadcrumb
+     */
     url?: string;
 }

src/app/breadcrumbs/breadcrumb/breadcrumb.model.ts

@@ -1,6 +1,15 @@
+/**
+ * Class representing a single breadcrumb
+ */
 export class Breadcrumb {
   constructor(
+    /**
+     * The display value of the breadcrumb
+     */
     public text: string,
+    /**
+     * The optional url of the breadcrumb
+     */
     public url?: string) {
   }
 }

src/app/breadcrumbs/breadcrumbs.component.ts

@@ -1,7 +1,7 @@
 import { Component, OnDestroy, OnInit } from '@angular/core';
 import { ActivatedRoute, NavigationEnd, Router } from '@angular/router';
 import { Breadcrumb } from './breadcrumb/breadcrumb.model';
-import { hasNoValue, hasValue, isNotUndefined } from '../shared/empty.util';
+import { hasNoValue, hasValue, isNotUndefined, isUndefined } from '../shared/empty.util';
 import { filter, map, switchMap, tap } from 'rxjs/operators';
 import { combineLatest, Observable, Subscription, of as observableOf } from 'rxjs';
 
@@ -58,8 +58,12 @@ export class BreadcrumbsComponent implements OnInit, OnDestroy {
     const routeConfig = route.snapshot.routeConfig;
 
     const last: boolean = hasNoValue(route.firstChild);
-    if (last && isNotUndefined(data.showBreadcrumbs)) {
+    if (last) {
+      if (hasValue(data.showBreadcrumbs)) {
         this.showBreadcrumbs = data.showBreadcrumbs;
+      } else if (isUndefined(data.breadcrumb)) {
+        this.showBreadcrumbs = false;
+      }
     }
 
     if (

src/app/core/breadcrumbs/collection-breadcrumb.resolver.ts

@@ -3,6 +3,7 @@ import { DSOBreadcrumbsService } from './dso-breadcrumbs.service';
 import { DSOBreadcrumbResolver } from './dso-breadcrumb.resolver';
 import { Collection } from '../shared/collection.model';
 import { CollectionDataService } from '../data/collection-data.service';
+import { followLink, FollowLinkConfig } from '../../shared/utils/follow-link-config.model';
 
 /**
  * The class that resolves the BreadcrumbConfig object for a Collection
@@ -12,4 +13,17 @@ export class CollectionBreadcrumbResolver extends DSOBreadcrumbResolver<Collecti
   constructor(protected breadcrumbService: DSOBreadcrumbsService, protected dataService: CollectionDataService) {
     super(breadcrumbService, dataService);
   }
+
+  /**
+   * Method that returns the follow links to already resolve
+   * The self links defined in this list are expected to be requested somewhere in the near future
+   * Requesting them as embeds will limit the number of requests
+   */
+  get followLinks(): Array<FollowLinkConfig<Collection>> {
+    return [
+      followLink('parentCommunity', undefined,
+        followLink('parentCommunity')
+      )
+    ];
+  }
 }

src/app/core/breadcrumbs/community-breadcrumb.resolver.ts

@@ -3,6 +3,7 @@ import { DSOBreadcrumbsService } from './dso-breadcrumbs.service';
 import { DSOBreadcrumbResolver } from './dso-breadcrumb.resolver';
 import { CommunityDataService } from '../data/community-data.service';
 import { Community } from '../shared/community.model';
+import { followLink, FollowLinkConfig } from '../../shared/utils/follow-link-config.model';
 
 /**
  * The class that resolves the BreadcrumbConfig object for a Community
@@ -12,4 +13,15 @@ export class CommunityBreadcrumbResolver extends DSOBreadcrumbResolver<Community
   constructor(protected breadcrumbService: DSOBreadcrumbsService, protected dataService: CommunityDataService) {
     super(breadcrumbService, dataService);
   }
+
+  /**
+   * Method that returns the follow links to already resolve
+   * The self links defined in this list are expected to be requested somewhere in the near future
+   * Requesting them as embeds will limit the number of requests
+   */
+  get followLinks(): Array<FollowLinkConfig<Community>> {
+    return [
+      followLink('parentCommunity')
+    ];
+  }
 }

src/app/core/breadcrumbs/dso-breadcrumb.resolver.spec.ts

@@ -2,6 +2,7 @@ import { DSOBreadcrumbResolver } from './dso-breadcrumb.resolver';
 import { Collection } from '../shared/collection.model';
 import { createSuccessfulRemoteDataObject$ } from '../../shared/testing/utils';
 import { getTestScheduler } from 'jasmine-marbles';
+import { CollectionBreadcrumbResolver } from './collection-breadcrumb.resolver';
 
 describe('DSOBreadcrumbResolver', () => {
   describe('resolve', () => {
@@ -22,7 +23,7 @@ describe('DSOBreadcrumbResolver', () => {
       collectionService = {
         findById: (id: string) => createSuccessfulRemoteDataObject$(testCollection)
       };
-      resolver = new DSOBreadcrumbResolver(dsoBreadcrumbService, collectionService);
+      resolver = new CollectionBreadcrumbResolver(dsoBreadcrumbService, collectionService);
     });
 
     it('should resolve a breadcrumb config for the correct DSO', () => {

src/app/core/breadcrumbs/dso-breadcrumb.resolver.ts

@@ -8,12 +8,13 @@ import { map } from 'rxjs/operators';
 import { Observable } from 'rxjs';
 import { DSpaceObject } from '../shared/dspace-object.model';
 import { ChildHALResource } from '../shared/child-hal-resource.model';
+import { FollowLinkConfig } from '../../shared/utils/follow-link-config.model';
 
 /**
  * The class that resolves the BreadcrumbConfig object for a DSpaceObject
  */
 @Injectable()
-export class DSOBreadcrumbResolver<T extends ChildHALResource & DSpaceObject> implements Resolve<BreadcrumbConfig<T>> {
+export abstract class DSOBreadcrumbResolver<T extends ChildHALResource & DSpaceObject> implements Resolve<BreadcrumbConfig<T>> {
   constructor(protected breadcrumbService: DSOBreadcrumbsService, protected dataService: DataService<T>) {
   }
 
@@ -25,7 +26,7 @@ export class DSOBreadcrumbResolver<T extends ChildHALResource & DSpaceObject> im
    */
   resolve(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<BreadcrumbConfig<T>> {
     const uuid = route.params.id;
-    return this.dataService.findById(uuid).pipe(
+    return this.dataService.findById(uuid, ...this.followLinks).pipe(
       getSucceededRemoteData(),
       getRemoteDataPayload(),
       map((object: T) => {
@@ -34,6 +35,12 @@ export class DSOBreadcrumbResolver<T extends ChildHALResource & DSpaceObject> im
         return { provider: this.breadcrumbService, key: object, url: url };
       })
     );
+  }
 
-  }
+  /**
+   * Method that returns the follow links to already resolve
+   * The self links defined in this list are expected to be requested somewhere in the near future
+   * Requesting them as embeds will limit the number of requests
+   */
+  abstract get followLinks(): Array<FollowLinkConfig<T>>;
 }

src/app/core/breadcrumbs/i18n-breadcrumb.resolver.ts

@@ -9,11 +9,11 @@ import { hasNoValue } from '../../shared/empty.util';
  */
 @Injectable()
 export class I18nBreadcrumbResolver implements Resolve<BreadcrumbConfig<string>> {
-  constructor(private breadcrumbService: I18nBreadcrumbsService) {
+  constructor(protected breadcrumbService: I18nBreadcrumbsService) {
   }
 
   /**
-   * Method for resolving a site object
+   * Method for resolving an I18n breadcrumb configuration object
    * @param {ActivatedRouteSnapshot} route The current ActivatedRouteSnapshot
    * @param {RouterStateSnapshot} state The current RouterStateSnapshot
    * @returns BreadcrumbConfig object

src/app/core/breadcrumbs/item-breadcrumb.resolver.ts

@@ -3,6 +3,7 @@ import { DSOBreadcrumbsService } from './dso-breadcrumbs.service';
 import { ItemDataService } from '../data/item-data.service';
 import { Item } from '../shared/item.model';
 import { DSOBreadcrumbResolver } from './dso-breadcrumb.resolver';
+import { followLink, FollowLinkConfig } from '../../shared/utils/follow-link-config.model';
 
 /**
  * The class that resolves the BreadcrumbConfig object for an Item
@@ -12,4 +13,20 @@ export class ItemBreadcrumbResolver extends DSOBreadcrumbResolver<Item> {
   constructor(protected breadcrumbService: DSOBreadcrumbsService, protected dataService: ItemDataService) {
     super(breadcrumbService, dataService);
   }
+
+  /**
+   * Method that returns the follow links to already resolve
+   * The self links defined in this list are expected to be requested somewhere in the near future
+   * Requesting them as embeds will limit the number of requests
+   */
+  get followLinks(): Array<FollowLinkConfig<Item>> {
+    return [
+      followLink('owningCollection', undefined,
+        followLink('parentCommunity', undefined,
+          followLink('parentCommunity'))
+      ),
+      followLink('bundles'),
+      followLink('relationships')
+    ];
+  }
 }

src/app/core/shared/child-hal-resource.model.ts

@@ -1,5 +1,12 @@
 import { HALResource } from './hal-resource.model';
 
+/**
+ * Interface for HALResources with a parent object link
+ */
 export interface ChildHALResource extends HALResource {
+
+  /**
+   * Returns the key of the parent link
+   */
   getParentLinkKey(): keyof this['_links'];
 }