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

**

** Copyright (C) 2016 The Qt Company Ltd.

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**

** This file is part of the QtGui module of the Qt Toolkit.

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** $QT_BEGIN_LICENSE:LGPL$

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** General Public License version 3 as published by the Free Software

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

#include <qpa/qplatformthemefactory_p.h>

#include <qpa/qplatformthemeplugin.h>

#include <QDir>

#include "private/qfactoryloader_p.h"

#include "qmutex.h"

#include "qguiapplication.h"

#include "qdebug.h"

QT_BEGIN_NAMESPACE

Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,

    (QPlatformThemeFactoryInterface_iid, QLatin1String("/platformthemes"), Qt::CaseInsensitive))

#if QT_CONFIG(library)

Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, directLoader,

                          (QPlatformThemeFactoryInterface_iid, QLatin1String(""), Qt::CaseInsensitive))

#endif

QPlatformTheme *QPlatformThemeFactory::create(const QString& key, const QString &platformPluginPath)

{

    QStringList paramList = key.split(QLatin1Char(':'));

    const QString platform = paramList.takeFirst().toLower();

#if QT_CONFIG(library)

    // Try loading the plugin from platformPluginPath first:

    if (!platformPluginPath.isEmpty()) {

        QCoreApplication::addLibraryPath(platformPluginPath);

        if (QPlatformTheme *ret = qLoadPlugin<QPlatformTheme, QPlatformThemePlugin>(directLoader(), platform, paramList))

            return ret;

    }

#else

    Q_UNUSED(platformPluginPath);

#endif

    return qLoadPlugin<QPlatformTheme, QPlatformThemePlugin>(loader(), platform, paramList);

}

/*!

    Returns the list of valid keys, i.e. the keys this factory can

    create styles for.

    \sa create()

*/

QStringList QPlatformThemeFactory::keys(const QString &platformPluginPath)

{

    QStringList list;

#if QT_CONFIG(library)

    if (!platformPluginPath.isEmpty()) {

        QCoreApplication::addLibraryPath(platformPluginPath);

        list += directLoader()->keyMap().values();

        if (!list.isEmpty()) {

            const QString postFix = QLatin1String(" (from ")

                    + QDir::toNativeSeparators(platformPluginPath)

                    + QLatin1Char(')');

            const QStringList::iterator end = list.end();

            for (QStringList::iterator it = list.begin(); it != end; ++it)

                (*it).append(postFix);

        }

    }

#else

    Q_UNUSED(platformPluginPath);

#endif

    list += loader()->keyMap().values();

    return list;

}

QT_END_NAMESPACE