MOBILE-2975 rating: Allow disabling rating

src/core/rating/components/aggregate/aggregate.ts

@@ -12,10 +12,11 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import { Component, Input, OnChanges, SimpleChange } from '@angular/core';
+import { Component, Input, OnChanges, SimpleChange, OnDestroy } from '@angular/core';
 import { ModalController } from 'ionic-angular';
 import { CoreEventsProvider } from '@providers/events';
 import { CoreRatingProvider, CoreRatingInfo, CoreRatingInfoItem } from '@core/rating/providers/rating';
+import { CoreSitesProvider } from '@providers/sites';
 
 /**
  * Component that displays the aggregation of a rating item.
@@ -24,7 +25,7 @@ import { CoreRatingProvider, CoreRatingInfo, CoreRatingInfoItem } from '@core/ra
     selector: 'core-rating-aggregate',
     templateUrl: 'core-rating-aggregate.html'
 })
-export class CoreRatingAggregateComponent implements OnChanges {
+export class CoreRatingAggregateComponent implements OnChanges, OnDestroy {
     @Input() ratingInfo: CoreRatingInfo;
     @Input() contextLevel: string;
     @Input() instanceId: number;
@@ -33,12 +34,23 @@ export class CoreRatingAggregateComponent implements OnChanges {
     @Input() scaleId: number;
     @Input() courseId?: number;
 
+    disabled = false;
     protected labelKey: string;
     protected showCount: boolean;
     protected item: CoreRatingInfoItem;
     protected aggregateObserver;
+    protected updateSiteObserver;
 
-    constructor(private eventsProvider: CoreEventsProvider, private modalCtrl: ModalController) {}
+    constructor(private eventsProvider: CoreEventsProvider, private modalCtrl: ModalController,
+            private ratingProvider: CoreRatingProvider, sitesProvider: CoreSitesProvider) {
+
+        this.disabled = this.ratingProvider.isRatingDisabledInSite();
+
+        // Update visibility if current site info is updated.
+        this.updateSiteObserver = eventsProvider.on(CoreEventsProvider.SITE_UPDATED, () => {
+            this.disabled = this.ratingProvider.isRatingDisabledInSite();
+        }, sitesProvider.getCurrentSiteId());
+    }
 
     /**
      * Detect changes on input properties.
@@ -86,7 +98,7 @@ export class CoreRatingAggregateComponent implements OnChanges {
      * Open the individual ratings page.
      */
     openRatings(): void {
-        if (!this.ratingInfo.canviewall || !this.item.count) {
+        if (!this.ratingInfo.canviewall || !this.item.count || this.disabled) {
             return;
         }
 
@@ -108,5 +120,6 @@ export class CoreRatingAggregateComponent implements OnChanges {
      */
     ngOnDestroy(): void {
         this.aggregateObserver && this.aggregateObserver.off();
+        this.updateSiteObserver && this.updateSiteObserver.off();
     }
 }

src/core/rating/components/aggregate/core-rating-aggregate.html

@@ -1,4 +1,4 @@
-<a *ngIf="item && item.canviewaggregate && labelKey" ion-item text-wrap [attr.detail-none]="ratingInfo.canviewall && item.count ? null : true" (click)="openRatings()">
+<a *ngIf="item && item.canviewaggregate && labelKey && !disabled" ion-item text-wrap [attr.detail-none]="ratingInfo.canviewall && item.count ? null : true" (click)="openRatings()">
     {{ labelKey | translate }}{{ 'core.labelsep' | translate }} {{ item.aggregatestr || '-' }}
     <span *ngIf="showCount && item.count > 0">({{ item.count }})</span>
 </a>

src/core/rating/components/rate/core-rating-rate.html

@@ -1,4 +1,4 @@
-<ion-item text-wrap *ngIf="item && (item.canrate || item.rating != null)">
+<ion-item text-wrap *ngIf="item && (item.canrate || item.rating != null) && !disabled">
     <ion-label>{{ 'core.rating.rating' | translate }}</ion-label>
     <ion-select text-start [(ngModel)]="rating" (ngModelChange)="userRatingChanged()" interface="action-sheet" [disabled]="!item.canrate">
         <ion-option *ngFor="let scaleItem of scale.items" [value]="scaleItem.value">{{ scaleItem.name }}</ion-option>

src/core/rating/components/rate/rate.ts

@@ -12,11 +12,13 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import { Component, EventEmitter, Input, OnChanges, Output, SimpleChange  } from '@angular/core';
+import { Component, EventEmitter, Input, OnChanges, Output, SimpleChange, OnDestroy } from '@angular/core';
 import { TranslateService } from '@ngx-translate/core';
 import { CoreRatingProvider, CoreRatingInfo, CoreRatingInfoItem, CoreRatingScale } from '@core/rating/providers/rating';
 import { CoreDomUtilsProvider } from '@providers/utils/dom';
 import { CoreRatingOfflineProvider } from '@core/rating/providers/offline';
+import { CoreEventsProvider } from '@providers/events';
+import { CoreSitesProvider } from '@providers/sites';
 
 /**
  * Component that displays the user rating select.
@@ -25,7 +27,7 @@ import { CoreRatingOfflineProvider } from '@core/rating/providers/offline';
     selector: 'core-rating-rate',
     templateUrl: 'core-rating-rate.html'
 })
-export class CoreRatingRateComponent implements OnChanges {
+export class CoreRatingRateComponent implements OnChanges, OnDestroy {
     @Input() ratingInfo: CoreRatingInfo;
     @Input() contextLevel: string; // Context level: course, module, user, etc.
     @Input() instanceId: number; // Context instance id.
@@ -41,11 +43,22 @@ export class CoreRatingRateComponent implements OnChanges {
     item: CoreRatingInfoItem;
     scale: CoreRatingScale;
     rating: number;
+    disabled = false;
+    protected updateSiteObserver;
+
+    constructor(private domUtils: CoreDomUtilsProvider, private translate: TranslateService, eventsProvider: CoreEventsProvider,
+            private ratingProvider: CoreRatingProvider, private ratingOffline: CoreRatingOfflineProvider,
+            sitesProvider: CoreSitesProvider) {
 
-    constructor(private domUtils: CoreDomUtilsProvider, private translate: TranslateService,
-            private ratingProvider: CoreRatingProvider, private ratingOffline: CoreRatingOfflineProvider) {
         this.onLoading = new EventEmitter<boolean>();
         this.onUpdate = new EventEmitter<void>();
+
+        this.disabled = this.ratingProvider.isRatingDisabledInSite();
+
+        // Update visibility if current site info is updated.
+        this.updateSiteObserver = eventsProvider.on(CoreEventsProvider.SITE_UPDATED, () => {
+            this.disabled = this.ratingProvider.isRatingDisabledInSite();
+        }, sitesProvider.getCurrentSiteId());
     }
 
     /**
@@ -113,4 +126,11 @@ export class CoreRatingRateComponent implements OnChanges {
             modal.dismiss();
         });
     }
+
+    /**
+     * Component being destroyed.
+     */
+    ngOnDestroy(): void {
+        this.updateSiteObserver && this.updateSiteObserver.off();
+    }
 }

src/core/rating/providers/rating.ts

@@ -13,7 +13,7 @@
 // limitations under the License.
 
 import { Injectable } from '@angular/core';
-import { CoreSiteWSPreSets } from '@classes/site';
+import { CoreSite, CoreSiteWSPreSets } from '@classes/site';
 import { CoreAppProvider } from '@providers/app';
 import { CoreEventsProvider } from '@providers/events';
 import { CoreSitesProvider } from '@providers/sites';
@@ -302,6 +302,30 @@ export class CoreRatingProvider {
         });
     }
 
+    /**
+     * Check if rating is disabled in a certain site.
+     *
+     * @param {CoreSite} [site] Site. If not defined, use current site.
+     * @return {boolean} Whether it's disabled.
+     */
+    isRatingDisabledInSite(site?: CoreSite): boolean {
+        site = site || this.sitesProvider.getCurrentSite();
+
+        return site.isFeatureDisabled('NoDelegate_CoreRating');
+    }
+
+    /**
+     * Check if rating is disabled in a certain site.
+     *
+     * @param  {string} [siteId] Site Id. If not defined, use current site.
+     * @return {Promise<boolean>} Promise resolved with true if disabled, rejected or resolved with false otherwise.
+     */
+    isRatingDisabled(siteId?: string): Promise<boolean> {
+        return this.sitesProvider.getSite(siteId).then((site) => {
+            return this.isRatingDisabledInSite(site);
+        });
+    }
+
     /**
      * Prefetch individual ratings.
      *