constructor(platform: Platform, device: Device, appProvider: CoreAppProvider, fileProvider: CoreFileProvider,
            initDelegate: CoreInitDelegate, langProvider: CoreLangProvider, sitesProvider: CoreSitesProvider,
            localNotificationsProvider: CoreLocalNotificationsProvider, pushNotificationsProvider: AddonPushNotificationsProvider) {

        const currentSite = sitesProvider.getCurrentSite();

        this.appName = appProvider.isDesktop() ? CoreConfigConstants.desktopappname : CoreConfigConstants.appname;
        this.versionName = CoreConfigConstants.versionname;
        this.versionCode = CoreConfigConstants.versioncode;
        this.compilationTime = CoreConfigConstants.compilationtime;
        this.lastCommit = CoreConfigConstants.lastcommit;

        // Calculate the privacy policy to use.
        this.privacyPolicy = (currentSite && (currentSite.getStoredConfig('tool_mobile_apppolicy') ||
                currentSite.getStoredConfig('sitepolicy'))) || CoreConfigConstants.privacypolicy;

        this.navigator = window.navigator;
        if (window.location && window.location.href) {
            const url = window.location.href;
            this.locationHref = url.substr(0, url.indexOf('#'));
        }

        this.appReady = initDelegate.isReady() ? 'core.yes' : 'core.no';
        this.deviceType = platform.is('tablet') ? 'core.tablet' : 'core.phone';

        if (platform.is('android')) {
            this.deviceOs = 'core.android';
        } else if (platform.is('ios')) {
            this.deviceOs = 'core.ios';
        } else if (platform.is('windows')) {
            this.deviceOs = 'core.windowsphone';
        } else {
            const matches = navigator.userAgent.match(/\(([^\)]*)\)/);
            if (matches && matches.length > 1) {
                this.deviceOs = matches[1];
            } else {
                this.deviceOs = 'core.unknown';
            }
        }

        langProvider.getCurrentLanguage().then((lang) => {
            this.currentLanguage = lang;
        });

        this.networkStatus = appProvider.isOnline() ? 'core.online' : 'core.offline';
        this.wifiConnection = appProvider.isWifi() ? 'core.yes' : 'core.no';
        this.deviceWebWorkers = !!window['Worker'] && !!window['URL'] ? 'core.yes' : 'core.no';
        this.device = device;

        if (fileProvider.isAvailable()) {
            fileProvider.getBasePath().then((basepath) => {
                this.fileSystemRoot = basepath;
                this.fsClickable = fileProvider.usesHTMLAPI();
            });
        }

        this.localNotifAvailable = localNotificationsProvider.isAvailable() ? 'core.yes' : 'core.no';
        this.pushId = pushNotificationsProvider.getPushId();
    }

 return this.glossaryOffline.getEntryFolder(glossaryId, entryName, timeCreated, siteId).then((folderPath) => {
     return this.fileProvider.removeDir(folderPath).catch(() => {
         // Ignore any errors, CoreFileProvider.removeDir fails if folder doesn't exists.
     });
 });

 return this.forumOffline.getNewDiscussionFolder(forumId, timecreated, siteId).then((folderPath) => {
     return this.fileProvider.removeDir(folderPath).catch(() => {
         // Ignore any errors, CoreFileProvider.removeDir fails if folder doesn't exists.
     });
 });

 return this.workshopOffline.getAssessmentFolder(workshopId, assessmentId, siteId).then((folderPath) => {
     return this.fileProvider.removeDir(folderPath).catch(() => {
         // Ignore any errors, CoreFileProvider.removeDir fails if folder doesn't exists.
     });
 });

    /**
     * Component being initialized.
     */
    ngOnInit(): void {
        if (!this.filePath) {
            this.domUtils.showErrorModal('Error reading file.');
            this.navCtrl.pop();

            return;
        }

        const fileAndDir = this.fileProvider.getFileAndDirectoryFromPath(this.filePath);
        this.fileName = fileAndDir.name;

        // Get the file.
        this.fileProvider.getExternalFile(this.filePath).then((fe) => {
            this.fileEntry = fe;
            this.fileName = this.fileEntry.name;
        }).catch(() => {
            this.domUtils.showErrorModal('Error reading file.');
            this.navCtrl.pop();
        });

        // Get the sites.
        this.sitesProvider.getSites().then((sites) => {
            this.sites = sites;
        }).finally(() => {
            this.loaded = true;
        });
    }

 fileProvider.getBasePath().then((basepath) => {
     this.fileSystemRoot = basepath;
     this.fsClickable = fileProvider.usesHTMLAPI();
 });