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/****************************************************************************

**

** Implementation of QInputContextFactory class

**

** Copyright (C) 2003-2004 immodule for Qt Project.  All rights reserved.

**

** This file is written to contribute to Nokia Corporation and/or its subsidiary(-ies) under their own

** license. You may use this file under your Qt license. Following

** description is copied from their original file headers. Contact

** immodule-qt@freedesktop.org if any conditions of this licensing are

** not clear to you.

**

****************************************************************************/

#include "qinputcontextfactory.h"

#ifndef QT_NO_IM

#include "qcoreapplication.h"

#include "qinputcontext.h"

#include "qinputcontextplugin.h"

#ifdef Q_WS_X11

#include "private/qt_x11_p.h"

#include "qximinputcontext_p.h"

#endif

#ifdef Q_WS_WIN

#include "qwininputcontext_p.h"

#endif

#ifdef Q_WS_MAC

#include "qmacinputcontext_p.h"

#endif

#ifdef Q_WS_S60

#include "qcoefepinputcontext_p.h"

#endif

#include "private/qfactoryloader_p.h"

#include "qmutex.h"

QT_BEGIN_NAMESPACE

#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)

Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,

    (QInputContextFactoryInterface_iid, QLatin1String("/inputmethods")))

#endif

/*!

    \class QInputContextFactory

    \brief The QInputContextFactory class creates QInputContext objects.

    The input context factory creates a QInputContext object for a

    given key with QInputContextFactory::create().

    The input contexts are either built-in or dynamically loaded from

    an input context plugin (see QInputContextPlugin).

    keys() returns a list of valid keys. The

    keys are the names used, for example, to identify and specify

    input methods for the input method switching mechanism. The names

    have to be consistent with QInputContext::identifierName(), and

    may only contain ASCII characters.

    A key can be used to retrieve the associated input context's

    supported languages using languages(). You

    can retrieve the input context's description using

    description() and finally you can get a user

    friendly internationalized name of the QInputContext object

    specified by the key using displayName().

    \legalese

    Copyright (C) 2003-2004 immodule for Qt Project.  All rights reserved.

    This file is written to contribute to Nokia Corporation and/or its subsidiary(-ies) under their own

    license. You may use this file under your Qt license. Following

    description is copied from their original file headers. Contact

    immodule-qt@freedesktop.org if any conditions of this licensing are

    not clear to you.

    \endlegalese

    \sa QInputContext, QInputContextPlugin

*/

/*!

    Creates and returns a QInputContext object for the input context

    specified by \a key with the given \a parent. Keys are case

    sensitive.

    \sa keys()

*/

QInputContext *QInputContextFactory::create( const QString& key, QObject *parent )

{

    QInputContext *result = 0;

#if defined(Q_WS_X11) && !defined(QT_NO_XIM)

    if (key == QLatin1String("xim")) {

        result = new QXIMInputContext;

    }

#endif

#if defined(Q_WS_WIN)

    if (key == QLatin1String("win")) {

        result = new QWinInputContext;

    }

#endif

#if defined(Q_WS_MAC)

    if (key == QLatin1String("mac")) {

        result = new QMacInputContext;

    }

#endif

#if defined(Q_WS_S60)

    if (key == QLatin1String("coefep")) {

        result = new QCoeFepInputContext;

    }

#endif

#if defined(QT_NO_LIBRARY) || defined(QT_NO_SETTINGS)

    Q_UNUSED(key);

#else

    if (QInputContextFactoryInterface *factory =

        qobject_cast<QInputContextFactoryInterface*>(loader()->instance(key))) {

        result = factory->create(key);

    }

#endif

    if (result)

        result->setParent(parent);

    return result;

}

/*!

    Returns the list of keys this factory can create input contexts

    for.

    The keys are the names used, for example, to identify and specify

    input methods for the input method switching mechanism.  The names

    have to be consistent with QInputContext::identifierName(), and

    may only contain ASCII characters.

    \sa create(), displayName(), QInputContext::identifierName()

*/

QStringList QInputContextFactory::keys()

{

    QStringList result;

#if defined(Q_WS_X11) && !defined(QT_NO_XIM)

    result << QLatin1String("xim");

#endif

#if defined(Q_WS_WIN) && !defined(QT_NO_XIM)

    result << QLatin1String("win");

#endif

#if defined(Q_WS_MAC)

    result << QLatin1String("mac");

#endif

#if defined(Q_WS_S60)

    result << QLatin1String("coefep");

#endif

#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)

    result += loader()->keys();

#endif // QT_NO_LIBRARY

    return result;

}

#if defined(Q_WS_S60)

/*!

    \internal

    This function contains pure Symbian exception handling code for

    getting S60 language list.

    Returned object ownership is transfered to caller.

*/

static CAknInputLanguageList* s60LangListL()

{

    CAknInputLanguageInfo *langInfo = AknInputLanguageInfoFactory::CreateInputLanguageInfoL();

    CleanupStack::PushL(langInfo);

    // In rare phone there is more than 7 languages installed -> use 7 as an array granularity

    CAknInputLanguageList *langList = new (ELeave) CAknInputLanguageList(7);

    CleanupStack::PushL(langList);

    langInfo->AppendAvailableLanguagesL(langList);

    CleanupStack::Pop(langList);

    CleanupStack::PopAndDestroy(langInfo);

    return langList;

}

/*!

    \internal

    This function utility function return S60 language list.

    Returned object ownership is transfered to caller.

*/

static CAknInputLanguageList* s60LangList()

{

    CAknInputLanguageList *langList = NULL;

    TRAP_IGNORE(langList = s60LangListL());

    q_check_ptr(langList);

    return langList;

}

#endif

/*!

    Returns the languages supported by the QInputContext object

    specified by \a key.

    The languages are expressed as language code (e.g. "zh_CN",

    "zh_TW", "zh_HK", "ja", "ko", ...). An input context that supports

    multiple languages can return all supported languages as a

    QStringList. The name has to be consistent with

    QInputContext::language().

    This information may be used to optimize a user interface.

    \sa keys(), QInputContext::language(), QLocale

*/

QStringList QInputContextFactory::languages( const QString &key )

{

    QStringList result;

#if defined(Q_WS_X11) && !defined(QT_NO_XIM)

    if (key == QLatin1String("xim"))

        return QStringList(QString());

#endif

#if defined(Q_WS_WIN)

    if (key == QLatin1String("win"))

        return QStringList(QString());

#endif

#if defined(Q_WS_MAC)

    if (key == QLatin1String("mac"))

        return QStringList(QString());

#endif

#if defined(Q_WS_S60)

    if (key == QLatin1String("coefep"))

        {

        CAknInputLanguageList *langList = s60LangList();

        int count = langList->Count();

        for (int i = 0; i < count; ++i)

            {

            result.append(QString(qt_symbianLocaleName(langList->At(i)->LanguageCode())));

            }

        delete langList;

        }

#endif

#if defined(QT_NO_LIBRARY) || defined(QT_NO_SETTINGS)

    Q_UNUSED(key);

#else

    if (QInputContextFactoryInterface *factory =

        qobject_cast<QInputContextFactoryInterface*>(loader()->instance(key)))

        result = factory->languages(key);

#endif // QT_NO_LIBRARY

    return result;

}

/*!

    Returns a user friendly internationalized name of the

    QInputContext object specified by \a key. You can, for example,

    use this name in a menu.

    \sa keys(), QInputContext::identifierName()

*/

QString QInputContextFactory::displayName( const QString &key )

{

    QString result;

#if defined(Q_WS_X11) && !defined(QT_NO_XIM)

    if (key == QLatin1String("xim"))

        return QInputContext::tr( "XIM" );

#endif

#ifdef Q_WS_S60

    if (key == QLatin1String("coefep"))

        return QInputContext::tr( "FEP" );

#endif

#if defined(QT_NO_LIBRARY) || defined(QT_NO_SETTINGS)

    Q_UNUSED(key);

#else

    if (QInputContextFactoryInterface *factory =

        qobject_cast<QInputContextFactoryInterface*>(loader()->instance(key)))

        return factory->displayName(key);

#endif // QT_NO_LIBRARY

    return QString();

}

/*!

    Returns an internationalized brief description of the QInputContext

    object specified by \a key. You can, for example, use this

    description in a user interface.

    \sa keys(), displayName()

*/

QString QInputContextFactory::description( const QString &key )

{

#if defined(Q_WS_X11) && !defined(QT_NO_XIM)

    if (key == QLatin1String("xim"))

        return QInputContext::tr( "XIM input method" );

#endif

#if defined(Q_WS_WIN) && !defined(QT_NO_XIM)

    if (key == QLatin1String("win"))

        return QInputContext::tr( "Windows input method" );

#endif

#if defined(Q_WS_MAC)

    if (key == QLatin1String("mac"))

        return QInputContext::tr( "Mac OS X input method" );

#endif

#if defined(Q_WS_S60)

    if (key == QLatin1String("coefep"))

        return QInputContext::tr( "S60 FEP input method" );

#endif

#if defined(QT_NO_LIBRARY) || defined(QT_NO_SETTINGS)

    Q_UNUSED(key);

#else

    if (QInputContextFactoryInterface *factory =

        qobject_cast<QInputContextFactoryInterface*>(loader()->instance(key)))

        return factory->description(key);

#endif // QT_NO_LIBRARY

    return QString();

}

QT_END_NAMESPACE

#endif // QT_NO_IM