151 lines
4.1 KiB
C++
151 lines
4.1 KiB
C++
#ifndef FVUPDATER_H
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#define FVUPDATER_H
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#include <QObject>
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#include <QMutex>
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#include <QNetworkAccessManager>
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#include <QUrl>
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#include <QXmlStreamReader>
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class FvUpdateWindow;
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class FvUpdateConfirmDialog;
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class FvAvailableUpdate;
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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(QUrl feedURL);
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void SetFeedURL(QString feedURL);
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QString GetFeedURL();
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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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//
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// ---------------------------------------------------
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// ---------------------------------------------------
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// ---------------------------------------------------
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// ---------------------------------------------------
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//
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protected:
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friend class FvUpdateWindow; // Uses GetProposedUpdate() and others
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friend class FvUpdateConfirmDialog; // Uses GetProposedUpdate() and others
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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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void UpdateInstallationNotConfirmed();
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private:
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//
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// Singleton business
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//
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// (we leave just the declarations, so the compiler will warn us if we try
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// to use those two functions by accident)
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FvUpdater(); // Hide main constructor
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~FvUpdater(); // Hide main destructor
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FvUpdater(const FvUpdater&); // Hide copy constructor
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FvUpdater& operator=(const FvUpdater&); // Hide assign op
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static FvUpdater* m_Instance; // Singleton instance
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//
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// Windows / dialogs
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//
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FvUpdateWindow* m_updaterWindow; // Updater window (NULL if not shown)
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void showUpdaterWindowUpdatedWithCurrentUpdateProposal(); // Show updater window
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void hideUpdaterWindow(); // Hide + destroy m_updaterWindow
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void updaterWindowWasClosed(); // Sent by the updater window when it gets closed
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FvUpdateConfirmDialog* m_updateConfirmationDialog; // Update confirmation dialog (NULL if not shown)
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void showUpdateConfirmationDialogUpdatedWithCurrentUpdateProposal(); // Show update confirmation dialog
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void hideUpdateConfirmationDialog(); // Hide + destroy m_updateConfirmationDialog
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void updateConfirmationDialogWasClosed(); // Sent by the update confirmation dialog when it gets closed
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// Available update (NULL if not fetched)
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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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// Dialogs (notifications)
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void showErrorDialog(QString message, bool showEvenInSilentMode = false); // Show an error message
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void showInformationDialog(QString message, bool showEvenInSilentMode = false); // Show an informational message
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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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int m_httpGetId;
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bool m_httpRequestAborted;
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void startDownloadFeed(QUrl url); // Start downloading feed
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void cancelDownloadFeed(); // Stop downloading the current feed
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private slots:
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void httpFeedReadyRead();
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void httpFeedUpdateDataReadProgress(qint64 bytesRead,
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qint64 totalBytes);
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void httpFeedDownloadFinished();
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private:
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//
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// XML parser
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//
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QXmlStreamReader m_xml; // XML data collector and parser
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bool xmlParseFeed(); // Parse feed in m_xml
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bool searchDownloadedFeedForUpdates(QString xmlTitle,
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QString xmlLink,
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QString xmlReleaseNotesLink,
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QString xmlPubDate,
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QString xmlEnclosureUrl,
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QString xmlEnclosureVersion,
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QString xmlEnclosurePlatform,
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unsigned long xmlEnclosureLength,
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QString xmlEnclosureType);
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//
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// Helpers
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//
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void installTranslator(); // Initialize translation mechanism
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};
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#endif // FVUPDATER_H
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