1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (developer.feedback@nokia.com)

     6 **

     7 ** This file is part of the HbCore module of the UI Extensions for Mobile.

     8 **

     9 ** GNU Lesser General Public License Usage

    10 ** This file may be used under the terms of the GNU Lesser General Public

    11 ** License version 2.1 as published by the Free Software Foundation and

    12 ** appearing in the file LICENSE.LGPL included in the packaging of this file.

    13 ** Please review the following information to ensure the GNU Lesser General

    14 ** Public License version 2.1 requirements will be met:

    15 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    16 **

    17 ** In addition, as a special exception, Nokia gives you certain additional

    18 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    19 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    20 **

    21 ** If you have questions regarding the use of this file, please contact

    22 ** Nokia at developer.feedback@nokia.com.

    23 **

    24 ****************************************************************************/

    25 

    26 #include <QString>

    27 #include <QDir>

    28 

    29 #include <hbinputmethoddescriptor.h>

    30 #include <hbinputmethod.h>

    31 

    32 class QInputContextPlugin;

    33 class QSharedMemory;

    34 

    35 const char HbInputMethodListKey[] = "HbInputMethodList";

    36 const char HbInputMethodListModTimeKey[] = "HbInputMethodListModTime";

    37 

    38 class HB_CORE_PRIVATE_EXPORT HbInputMethodListItem

    39 {

    40 public:

    41     HbInputMethodListItem() : cached(0), toBeRemoved(false) {}

    42     bool operator==(const HbInputMethodListItem &item) const {

    43         return (descriptor.pluginNameAndPath() == item.descriptor.pluginNameAndPath() &&

    44                 descriptor.key() == item.descriptor.key());

    45     }

    46 

    47     void setValues(QInputContextPlugin *plugin, const QString &key);

    48 

    49 public:

    50     HbInputMethodDescriptor descriptor;

    51     QStringList languages;

    52     HbInputMethod *cached;

    53     bool toBeRemoved;

    54 };

    55 

    56 HB_CORE_PRIVATE_EXPORT QDataStream &operator<<(QDataStream &stream, const HbInputMethodListItem &item);

    57 HB_CORE_PRIVATE_EXPORT QDataStream &operator>>(QDataStream &stream, HbInputMethodListItem &item);

    58 

    59 class HB_CORE_PRIVATE_EXPORT HbInputModeCachePrivate

    60 {

    61 public:

    62     HbInputModeCachePrivate();

    63     ~HbInputModeCachePrivate();

    64     void refresh();

    65     static void readInputMethodDataFromDisk(QList<HbInputMethodListItem> *methodList, const QDir &readPath = QDir());

    66     bool readInputMethodDataFromSharedMemory();

    67     void pruneRemovedMethods();

    68     static QInputContextPlugin *pluginInstance(const QString &pluginFileName);

    69     HbInputMethod *methodInstance(const QString &pluginFileName, const QString &key) const;

    70     HbInputMethod *cachedMethod(HbInputMethodListItem &item);

    71     bool isMappedLanguage(const HbInputLanguage &language) const;

    72 

    73 public:

    74     QList<HbInputMethodListItem> mMethods;

    75     QSharedMemory *mSharedMethodList;

    76     QSharedMemory *mMethodListModTime;

    77     uint mMethodListLastUpdate;

    78     bool mMethodsFetchedFromDisk;

    79     bool mShuttingDown;

    80 };