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Diffstat (limited to 'tools/runonphone/trk/communicationstarter.h')
-rw-r--r-- | tools/runonphone/trk/communicationstarter.h | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/tools/runonphone/trk/communicationstarter.h b/tools/runonphone/trk/communicationstarter.h new file mode 100644 index 0000000..08defde --- /dev/null +++ b/tools/runonphone/trk/communicationstarter.h @@ -0,0 +1,160 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the tools applications of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef COMMUNICATIONSTARTER_H +#define COMMUNICATIONSTARTER_H + +#include <QtCore/QSharedPointer> +#include <QtCore/QObject> + +namespace trk { +class TrkDevice; +class BluetoothListener; +struct BaseCommunicationStarterPrivate; + +/* BaseCommunicationStarter: A QObject that repeatedly tries to open a + * trk device until a connection succeeds or a timeout occurs (emitting + * signals), allowing to do something else in the foreground (local event loop + * [say QMessageBox] or some asynchronous operation). If the initial + * connection attempt in start() fails, the + * virtual initializeStartupResources() is called to initialize resources + * required to pull up the communication (namely Bluetooth listeners). + * The base class can be used as is to prompt the user to launch App TRK for a + * serial communication as this requires no further resource setup. */ + +class BaseCommunicationStarter : public QObject { + Q_OBJECT + Q_DISABLE_COPY(BaseCommunicationStarter) +public: + typedef QSharedPointer<TrkDevice> TrkDevicePtr; + + enum State { Running, Connected, TimedOut }; + + explicit BaseCommunicationStarter(const TrkDevicePtr& trkDevice, QObject *parent = 0); + virtual ~BaseCommunicationStarter(); + + int intervalMS() const; + void setIntervalMS(int i); + + int attempts() const; + void setAttempts(int a); + + QString device() const; + void setDevice(const QString &); + + State state() const; + QString errorString() const; + + enum StartResult { + Started, // Starter is now running. + ConnectionSucceeded, /* Initial connection attempt succeeded, + * no need to keep running. */ + StartError // Error occurred during start. + }; + + StartResult start(); + +signals: + void connected(); + void timeout(); + void message(const QString &); + +private slots: + void slotTimer(); + +protected: + virtual bool initializeStartupResources(QString *errorMessage); + +private: + inline void stopTimer(); + + BaseCommunicationStarterPrivate *d; +}; + +/* AbstractBluetoothStarter: Repeatedly tries to open a trk Bluetooth + * device. Note that in case a Listener is already running mode, the + * connection will succeed immediately. + * initializeStartupResources() is implemented to fire up the listener. + * Introduces a new virtual createListener() that derived classes must + * implement as a factory function that creates and sets up the + * listener (mode, message connection, etc). */ + +class AbstractBluetoothStarter : public BaseCommunicationStarter { + Q_OBJECT + Q_DISABLE_COPY(AbstractBluetoothStarter) +public: + +protected: + explicit AbstractBluetoothStarter(const TrkDevicePtr& trkDevice, QObject *parent = 0); + + // Implemented to fire up the listener. + virtual bool initializeStartupResources(QString *errorMessage); + // New virtual: Overwrite to create and parametrize the listener. + virtual BluetoothListener *createListener() = 0; +}; + +/* ConsoleBluetoothStarter: Convenience class for console processes. Creates a + * listener in "Listen" mode with the messages redirected to standard output. */ + +class ConsoleBluetoothStarter : public AbstractBluetoothStarter { + Q_OBJECT + Q_DISABLE_COPY(ConsoleBluetoothStarter) +public: + static bool startBluetooth(const TrkDevicePtr& trkDevice, + QObject *listenerParent, + const QString &device, + int attempts, + QString *errorMessage); + +protected: + virtual BluetoothListener *createListener(); + +private: + explicit ConsoleBluetoothStarter(const TrkDevicePtr& trkDevice, + QObject *listenerParent, + QObject *parent = 0); + + QObject *m_listenerParent; +}; + +} // namespace trk + +#endif // COMMUNICATIONSTARTER_H |