MOBILE-1874 sitehome: Check if Main Menu block is visible

src/core/course/providers/course.ts

@@ -85,11 +85,22 @@ export class CoreCourseProvider {
         this.sitesProvider.createTableFromSchema(this.courseStatusTableSchema);
     }
 
+    /**
+     * Check if the get course blocks WS is available in current site.
+     *
+     * @return {boolean} Whether it's available.
+     * @since 3.3
+     */
+    canGetCourseBlocks(): boolean {
+        return this.sitesProvider.wsAvailableInCurrentSite('core_block_get_course_blocks');
+    }
+
     /**
      * Check whether the site supports requesting stealth modules.
      *
      * @param {CoreSite} [site] Site. If not defined, current site.
      * @return {boolean} Whether the site supports requesting stealth modules.
+     * @since 3.4.6, 3.5.3, 3.6
      */
     canRequestStealthModules(site?: CoreSite): boolean {
         site = site || this.sitesProvider.getCurrentSite();
@@ -208,6 +219,39 @@ export class CoreCourseProvider {
         return this.ROOT_CACHE_KEY + 'activitiescompletion:' + courseId + ':' + userId;
     }
 
+    /**
+     * Get course blocks.
+     *
+     * @param {number} courseId Course ID.
+     * @param {string} [siteId] Site ID. If not defined, current site.
+     * @return {Promise<any[]>} Promise resolved with the list of blocks.
+     * @since 3.3
+     */
+    getCourseBlocks(courseId: number, siteId?: string): Promise<any[]> {
+        return this.sitesProvider.getSite(siteId).then((site) => {
+            const params = {
+                    courseid: courseId
+                },
+                preSets: CoreSiteWSPreSets = {
+                    cacheKey: this.getCourseBlocksCacheKey(courseId)
+                };
+
+            return site.read('core_block_get_course_blocks', params, preSets).then((result) => {
+                return result.blocks || [];
+            });
+        });
+    }
+
+    /**
+     * Get cache key for course blocks WS calls.
+     *
+     * @param {number} courseId Course ID.
+     * @return {string} Cache key.
+     */
+    protected getCourseBlocksCacheKey(courseId: number): string {
+        return this.ROOT_CACHE_KEY + 'courseblocks:' + courseId;
+    }
+
     /**
      * Get the data stored for a course.
      *
@@ -608,6 +652,19 @@ export class CoreCourseProvider {
         return modules;
     }
 
+    /**
+     * Invalidates course blocks WS call.
+     *
+     * @param {number} courseId Course ID.
+     * @param {string} [siteId] Site ID. If not defined, current site.
+     * @return {Promise<any>} Promise resolved when the data is invalidated.
+     */
+    invalidateCourseBlocks(courseId: number, siteId?: string): Promise<any> {
+        return this.sitesProvider.getSite(siteId).then((site) => {
+            return site.invalidateWsCacheForKey(this.getCourseBlocksCacheKey(courseId));
+        });
+    }
+
     /**
      * Invalidates module WS call.
      *

src/core/sitehome/components/index/core-sitehome-index.html

@@ -22,14 +22,14 @@
             </ng-container>
         </ng-container>
 
-        <!-- Site home block. -->
+        <!-- Main menu block. -->
-        <ng-container *ngIf="block && block.hasContent">
+        <ng-container *ngIf="mainMenuBlock && mainMenuBlock.hasContent">
             <ion-item-divider color="light" *ngIf="(section && section.hasContent) || items.length > 0"></ion-item-divider>
-            <ion-item text-wrap *ngIf="block.summary">
+            <ion-item text-wrap *ngIf="mainMenuBlock.summary">
-                <core-format-text [text]="block.summary"></core-format-text>
+                <core-format-text [text]="mainMenuBlock.summary"></core-format-text>
             </ion-item>
 
-            <core-course-module *ngFor="let module of block.modules" [module]="module" [courseId]="siteHomeId" [downloadEnabled]="true" [section]="block"></core-course-module>
+            <core-course-module *ngFor="let module of mainMenuBlock.modules" [module]="module" [courseId]="siteHomeId" [downloadEnabled]="true" [section]="mainMenuBlock"></core-course-module>
         </ng-container>
     </ion-list>
 

src/core/sitehome/components/index/index.ts

@@ -30,7 +30,7 @@ import { CoreSiteHomeProvider } from '../../providers/sitehome';
 export class CoreSiteHomeIndexComponent implements OnInit {
     dataLoaded = false;
     section: any;
-    block: any;
+    mainMenuBlock: any;
     hasContent: boolean;
     items: any[] = [];
     siteHomeId: number;
@@ -75,6 +75,10 @@ export class CoreSiteHomeIndexComponent implements OnInit {
             promises.push(this.prefetchDelegate.invalidateModules(modules, this.siteHomeId));
         }
 
+        if (this.courseProvider.canGetCourseBlocks()) {
+            promises.push(this.courseProvider.invalidateCourseBlocks(this.siteHomeId));
+        }
+
         Promise.all(promises).finally(() => {
             this.loadContent().finally(() => {
                 refresher.complete();
@@ -126,33 +130,53 @@ export class CoreSiteHomeIndexComponent implements OnInit {
         }
 
         return this.courseProvider.getSections(this.siteHomeId, false, true).then((sections) => {
+            const promises = [];
+
             this.sectionsLoaded = Array.from(sections);
 
             // Check "Include a topic section" setting from numsections.
             this.section = config.numsections && sections.length > 0 ? sections.pop() : false;
             if (this.section) {
                 this.section.hasContent = this.courseHelper.sectionHasContent(this.section);
+                this.hasContent = this.courseHelper.addHandlerDataForModules([this.section], this.siteHomeId) || this.hasContent;
             }
 
-            this.block = sections.length > 0 ? sections.pop() : false;
+            const mainMenuBlock = sections.length > 0 ? sections.pop() : false;
-            if (this.block) {
+            this.mainMenuBlock = false;
-                this.block.hasContent = this.courseHelper.sectionHasContent(this.block);
+
+            if (mainMenuBlock) {
+                // Check if the block can be viewed.
+                let promise;
+
+                if (this.courseProvider.canGetCourseBlocks()) {
+                    promise = this.courseProvider.getCourseBlocks(this.siteHomeId).then((blocks) => {
+                        // Search if the main menu block is enabled.
+                        return !!blocks.find((block) => { return block.name == 'site_main_menu'; });
+                    }).catch(() => {
+                        return true;
+                    });
+                } else {
+                    // We don't know if it can be viewed, so always display it.
+                    promise = Promise.resolve(true);
                 }
 
-            this.hasContent = this.courseHelper.addHandlerDataForModules(this.sectionsLoaded, this.siteHomeId) || this.hasContent;
+                promises.push(promise.then((canView) => {
+                    if (canView) {
+                        // User can view the block, display it and calculate its data.
+                        this.mainMenuBlock = mainMenuBlock;
+                        this.mainMenuBlock.hasContent = this.courseHelper.sectionHasContent(this.mainMenuBlock);
+                        this.hasContent = this.courseHelper.addHandlerDataForModules([mainMenuBlock], this.siteHomeId) ||
+                                this.hasContent;
 
-            // Add log in Moodle.
+                        if (hasNewsItem && this.mainMenuBlock.modules) {
-            this.courseProvider.logView(this.siteHomeId);
+                            // Remove forum activity (news one only) from the main menu block to prevent duplicates.
-
-            if (hasNewsItem && this.block && this.block.modules) {
-                // Remove forum activity (news one only) to prevent duplicates.
                             return this.siteHomeProvider.getNewsForum(this.siteHomeId).then((forum) => {
                                 // Search the module that belongs to site news.
-                    for (let i = 0; i < this.block.modules.length; i++) {
+                                for (let i = 0; i < this.mainMenuBlock.modules.length; i++) {
-                        const module = this.block.modules[i];
+                                    const module = this.mainMenuBlock.modules[i];
 
                                     if (module.modname == 'forum' && module.instance == forum.id) {
-                            this.block.modules.splice(i, 1);
+                                        this.mainMenuBlock.modules.splice(i, 1);
                                         break;
                                     }
                                 }
@@ -160,6 +184,16 @@ export class CoreSiteHomeIndexComponent implements OnInit {
                                 // Ignore errors.
                             });
                         }
+                    }
+                }));
+            }
+
+            // Add log in Moodle.
+            this.courseProvider.logView(this.siteHomeId).catch(() => {
+                // Ignore errors.
+            });
+
+            return Promise.all(promises);
         }).catch((error) => {
             this.domUtils.showErrorModalDefault(error, 'core.course.couldnotloadsectioncontent', true);
         });