136 lines
4.6 KiB
C++
136 lines
4.6 KiB
C++
/***************************************************************************************************
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**
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** Copyright (c) 2012 Linas Valiukas and others.
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**
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** Permission is hereby granted, free of charge, to any person obtaining a copy of this
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** software and associated documentation files (the "Software"), to deal in the Software
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** without restriction, including without limitation the rights to use, copy, modify,
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** merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
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** permit persons to whom the Software is furnished to do so, subject to the following conditions:
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**
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** The above copyright notice and this permission notice shall be included in all copies or
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** substantial portions of the Software.
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**
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** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
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** NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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** NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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** DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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**
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******************************************************************************************************/
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#ifndef FVUPDATER_H
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#define FVUPDATER_H
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#include <QMetaObject>
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#include <QMutex>
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#include <QNetworkAccessManager>
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#include <QObject>
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#include <QPointer>
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#include <QString>
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#include <QUrl>
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#include <QXmlStreamReader>
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#include <QtGlobal>
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#include "fvavailableupdate.h"
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#include "fvupdatewindow.h"
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class FvAvailableUpdate;
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class FvUpdateWindow;
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class QNetworkReply;
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extern const QString defaultFeedURL;
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class FvUpdater : public QObject
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{
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Q_OBJECT
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public:
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// Singleton
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static FvUpdater* sharedUpdater();
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static void drop();
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// Set / get feed URL
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void SetFeedURL(const QUrl &feedURL);
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void SetFeedURL(const QString &feedURL);
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QString GetFeedURL() const;
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public slots:
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// Check for updates
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bool CheckForUpdates(bool silentAsMuchAsItCouldGet = true);
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// Aliases
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bool CheckForUpdatesSilent();
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bool CheckForUpdatesNotSilent();
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protected:
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friend class FvUpdateWindow; // Uses GetProposedUpdate() and others
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QPointer<FvAvailableUpdate> GetProposedUpdate();
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protected slots:
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// Update window button slots
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void InstallUpdate();
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void SkipUpdate();
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void RemindMeLater();
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// Update confirmation dialog button slots
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void UpdateInstallationConfirmed();
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private slots:
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void httpFeedDownloadFinished();
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private:
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//
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// Singleton business
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//
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Q_DISABLE_COPY(FvUpdater)
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FvUpdater(); // Hide main constructor
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virtual ~FvUpdater(); // Hide main destructor
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static QPointer<FvUpdater> m_Instance; // Singleton instance
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QPointer<FvUpdateWindow> m_updaterWindow; // Updater window (NULL if not shown)
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// Available update (NULL if not fetched)
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QPointer<FvAvailableUpdate> m_proposedUpdate;
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// If true, don't show the error dialogs and the "no updates." dialog
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// (silentAsMuchAsItCouldGet from CheckForUpdates() goes here)
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// Useful for automatic update checking upon application startup.
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bool m_silentAsMuchAsItCouldGet;
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//
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// HTTP feed fetcher infrastructure
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//
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QUrl m_feedURL; // Feed URL that will be fetched
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QNetworkAccessManager m_qnam;
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QNetworkReply* m_reply;
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bool m_httpRequestAborted;
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QXmlStreamReader m_xml; // XML data collector and parser
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void showUpdaterWindowUpdatedWithCurrentUpdateProposal(); // Show updater window
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void hideUpdaterWindow(); // Hide + destroy m_updaterWindow
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void startDownloadFeed(const QUrl &url); // Start downloading feed
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void cancelDownloadFeed(); // Stop downloading the current feed
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// Dialogs (notifications)
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// Show an error message
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void showErrorDialog(const QString &message, bool showEvenInSilentMode = false);
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// Show an informational message
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void showInformationDialog(const QString &message, bool showEvenInSilentMode = false);
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bool xmlParseFeed(); // Parse feed in m_xml
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bool searchDownloadedFeedForUpdates(const QString &xmlEnclosureUrl,
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const QString &xmlEnclosureVersion,
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const QString &xmlEnclosurePlatform);
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static bool VersionIsIgnored(const QString &version);
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static void IgnoreVersion(const QString &version);
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static bool CurrentlyRunningOnPlatform(const QString &platform);
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};
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#endif // FVUPDATER_H
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