source: trunk/src/gui/embedded/qkbddriverfactory_qws.cpp@ 890

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#include "qkbddriverfactory_qws.h"

#ifndef QT_NO_QWS_KEYBOARD

#include "qapplication.h"
#include "qkbdtty_qws.h"
#include "qkbdlinuxinput_qws.h"
#include "qkbdum_qws.h"
#include "qkbdvfb_qws.h"
#include "qkbdqnx_qws.h"
#include <stdlib.h>
#include "private/qfactoryloader_p.h"
#include "qkbddriverplugin_qws.h"

QT_BEGIN_NAMESPACE

#if !defined(Q_OS_WIN32) || defined(QT_MAKEDLL)
#ifndef QT_NO_LIBRARY
Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
    (QWSKeyboardHandlerFactoryInterface_iid,
     QLatin1String("/kbddrivers"), Qt::CaseInsensitive))

#endif //QT_NO_LIBRARY
#endif //QT_MAKEDLL

/*!
    \class QKbdDriverFactory
    \ingroup qws

    \brief The QKbdDriverFactory class creates keyboard drivers in
    Qt for Embedded Linux.

    Note that this class is only available in \l{Qt for Embedded Linux}.

    QKbdDriverFactory is used to detect and instantiate the available
    keyboard drivers, allowing \l{Qt for Embedded Linux} to load the preferred
    driver into the server application at runtime. The create()
    function returns a QWSKeyboardHandler object representing the
    keyboard driver identified by a given key. The valid keys
    (i.e. the supported drivers) can be retrieved using the keys()
    function.

    \l{Qt for Embedded Linux} provides several built-in keyboard drivers. In
    addition, custom keyboard drivers can be added using Qt's plugin
    mechanism, i.e. by subclassing the QWSKeyboardHandler class and
    creating a keyboard driver plugin (QKbdDriverPlugin). See the
    \l{Qt for Embedded Linux Character Input}{character input} documentation
    for details.

    \sa QWSKeyboardHandler, QKbdDriverPlugin
*/

/*!
    Creates the keyboard driver specified by the given \a key, using
    the display specified by the given \a device.

    Note that the keys are case-insensitive.

    \sa keys()
*/
QWSKeyboardHandler *QKbdDriverFactory::create(const QString& key, const QString& device)
{
    QString driver = key.toLower();
#if defined(Q_OS_QNX) && !defined(QT_NO_QWS_KBD_QNX)
    if (driver == QLatin1String("qnx") || driver.isEmpty())
        return new QWSQnxKeyboardHandler(device);
#endif
#ifndef QT_NO_QWS_KEYBOARD
# ifndef QT_NO_QWS_KBD_TTY
    if (driver == QLatin1String("tty") || driver.isEmpty())
        return new QWSTtyKeyboardHandler(device);
# endif
# ifndef QT_NO_QWS_KBD_LINUXINPUT
    if (driver == QLatin1String("linuxinput") || \
        driver == QLatin1String("usb") || \
        driver == QLatin1String("linuxis"))
        return new QWSLinuxInputKeyboardHandler(device);
# endif
# ifndef QT_NO_QWS_KBD_UM
    if (driver == QLatin1String("um") || driver == QLatin1String("qvfbkeyboard"))
        return new QWSUmKeyboardHandler(device);
# endif
# ifndef QT_NO_QWS_KBD_QVFB
    if (driver == QLatin1String("qvfbkbd")
        || driver == QLatin1String("qvfbkeyboard")
        || driver == QLatin1String("qvfb"))
        return new QVFbKeyboardHandler(device);
# endif
#endif

#if !defined(Q_OS_WIN32) || defined(QT_MAKEDLL)
#ifndef QT_NO_LIBRARY
    if (QWSKeyboardHandlerFactoryInterface *factory = qobject_cast<QWSKeyboardHandlerFactoryInterface*>(loader()->instance(driver)))
        return factory->create(driver, device);
#endif
#endif
    return 0;
}

/*!
    Returns the list of valid keys, i.e. the available keyboard
    drivers.

    \sa create()
*/
QStringList QKbdDriverFactory::keys()
{
    QStringList list;

#if defined(Q_OS_QNX) && !defined(QT_NO_QWS_KBD_QNX)
    list << QLatin1String("QNX");
#endif
#ifndef QT_NO_QWS_KBD_TTY
    list << QLatin1String("TTY");
#endif
#ifndef QT_NO_QWS_KBD_LINUXINPUT
    list << QLatin1String("LinuxInput");
#endif
#ifndef QT_NO_QWS_KBD_UM
    list << QLatin1String("UM");
#endif

#if !defined(Q_OS_WIN32) || defined(QT_MAKEDLL)
#ifndef QT_NO_LIBRARY
    QStringList plugins = loader()->keys();
    for (int i = 0; i < plugins.size(); ++i) {
        if (!list.contains(plugins.at(i)))
            list += plugins.at(i);
    }
#endif //QT_NO_LIBRARY
#endif //QT_MAKEDLL

    return list;
}

QT_END_NAMESPACE

#endif // QT_NO_QWS_KEYBOARD