MOBILE-2901 file: Support offline files for Nextcloud

src/addon/mod/resource/providers/helper.ts

@@ -113,7 +113,8 @@ export class AddonModResourceHelperProvider {
      * @return {boolean}         Whether the resource should be displayed embeded.
      */
     isDisplayedEmbedded(module: any, display: number): boolean {
-        if (!module.contents.length || !this.fileProvider.isAvailable() || this.isNextcloudFile(module)) {
+        if (!module.contents.length || !this.fileProvider.isAvailable() ||
+                (!this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan('3.7') && this.isNextcloudFile(module))) {
             return false;
         }
 

src/addon/mod/resource/providers/prefetch-handler.ts

@@ -130,7 +130,12 @@ export class AddonModResourcePrefetchHandler extends CoreCourseResourcePrefetchH
      * @return {Promise<boolean>} Promise resolved with true if downloadable, resolved with false otherwise.
      */
     isDownloadable(module: any, courseId: number): Promise<boolean> {
-        // Don't allow downloading Nextcloud files for now.
+        if (this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan('3.7')) {
+            // Nextcloud files are downloadable from 3.7 onwards.
+            return Promise.resolve(true);
+        }
+
+        // Don't allow downloading Nextcloud files in older sites.
         return this.loadContents(module, courseId, false).then(() => {
             return !this.resourceHelper.isNextcloudFile(module);
         });

src/assets/lang/en.json

@@ -1342,6 +1342,7 @@
     "core.favourites": "Starred",
     "core.filename": "Filename",
     "core.filenameexist": "File name already exists: {{$a}}",
+    "core.filenotfound": "File not found, sorry.",
     "core.fileuploader.addfiletext": "Add file",
     "core.fileuploader.audio": "Audio",
     "core.fileuploader.camera": "Camera",

src/classes/site.ts

@@ -176,7 +176,8 @@ export class CoreSite {
         3.3: 2017051503,
         3.4: 2017111300,
         3.5: 2018051700,
-        3.6: 2018120300
+        3.6: 2018120300,
+        3.7: 2019030700 // @todo: Replace it with the right 3.7 date when released
     };
 
     // Rest of variables.

src/core/course/components/module/module.ts

@@ -86,12 +86,15 @@ export class CoreCourseModuleComponent implements OnInit, OnDestroy {
                 if (data.componentId === this.module.id && this.prefetchHandler &&
                         data.component === this.prefetchHandler.component) {
 
+                    // Call determineModuleStatus to get the right status to display.
+                    const status = this.prefetchDelegate.determineModuleStatus(this.module, data.status);
+
                     if (this.downloadEnabled) {
                         // Download is enabled, show the status.
-                        this.showStatus(data.status);
+                        this.showStatus(status);
                     } else if (this.module.handlerData.updateStatus) {
                         // Download isn't enabled but the handler defines a updateStatus function, call it anyway.
-                        this.module.handlerData.updateStatus(data.status);
+                        this.module.handlerData.updateStatus(status);
                     }
                 }
             }, this.sitesProvider.getCurrentSiteId());

src/core/course/providers/module-prefetch-delegate.ts

@@ -377,6 +377,8 @@ export class CoreCourseModulePrefetchDelegate extends CoreDelegate {
                 }
             } else if (handler.determineStatus) {
                 // The handler implements a determineStatus function. Apply it.
+                canCheck = canCheck || this.canCheckUpdates();
+
                 return handler.determineStatus(module, status, canCheck);
             }
         }