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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module 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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qapplication.h"
#include "qevent.h"
#include "qbitmap.h"
#include "private/qsoftkeymanager_p.h"
#include "private/qobject_p.h"
#include "private/qsoftkeymanager_common_p.h"
#ifdef Q_WS_S60
#include "private/qsoftkeymanager_s60_p.h"
#endif
#ifndef QT_NO_SOFTKEYMANAGER
QT_BEGIN_NAMESPACE
QSoftKeyManager *QSoftKeyManagerPrivate::self = 0;
QString QSoftKeyManager::standardSoftKeyText(StandardSoftKey standardKey)
{
QString softKeyText;
switch (standardKey) {
case OkSoftKey:
softKeyText = QSoftKeyManager::tr("Ok");
break;
case SelectSoftKey:
softKeyText = QSoftKeyManager::tr("Select");
break;
case DoneSoftKey:
softKeyText = QSoftKeyManager::tr("Done");
break;
case MenuSoftKey:
softKeyText = QSoftKeyManager::tr("Options");
break;
case CancelSoftKey:
softKeyText = QSoftKeyManager::tr("Cancel");
break;
default:
break;
};
return softKeyText;
}
QSoftKeyManager *QSoftKeyManager::instance()
{
if (!QSoftKeyManagerPrivate::self)
QSoftKeyManagerPrivate::self = new QSoftKeyManager;
return QSoftKeyManagerPrivate::self;
}
QSoftKeyManager::QSoftKeyManager() :
#ifdef Q_WS_S60
QObject(*(new QSoftKeyManagerPrivateS60), 0)
#else
QObject(*(new QSoftKeyManagerPrivate), 0)
#endif
{
}
QAction *QSoftKeyManager::createAction(StandardSoftKey standardKey, QWidget *actionWidget)
{
QAction *action = new QAction(standardSoftKeyText(standardKey), actionWidget);
QAction::SoftKeyRole softKeyRole = QAction::NoSoftKey;
switch (standardKey) {
case MenuSoftKey: // FALL-THROUGH
action->setProperty(MENU_ACTION_PROPERTY, QVariant(true)); // TODO: can be refactored away to use _q_action_menubar
case OkSoftKey:
case SelectSoftKey:
case DoneSoftKey:
softKeyRole = QAction::PositiveSoftKey;
break;
case CancelSoftKey:
softKeyRole = QAction::NegativeSoftKey;
break;
}
action->setSoftKeyRole(softKeyRole);
return action;
}
/*! \internal
Creates a QAction and registers the 'triggered' signal to send the given key event to
\a actionWidget as a convenience.
*/
QAction *QSoftKeyManager::createKeyedAction(StandardSoftKey standardKey, Qt::Key key, QWidget *actionWidget)
{
#ifndef QT_NO_ACTION
QScopedPointer<QAction> action(createAction(standardKey, actionWidget));
connect(action.data(), SIGNAL(triggered()), QSoftKeyManager::instance(), SLOT(sendKeyEvent()));
connect(action.data(), SIGNAL(destroyed(QObject*)), QSoftKeyManager::instance(), SLOT(cleanupHash(QObject*)));
QSoftKeyManager::instance()->d_func()->keyedActions.insert(action.data(), key);
return action.take();
#endif //QT_NO_ACTION
}
void QSoftKeyManager::cleanupHash(QObject *obj)
{
Q_D(QSoftKeyManager);
QAction *action = qobject_cast<QAction*>(obj);
d->keyedActions.remove(action);
}
void QSoftKeyManager::sendKeyEvent()
{
Q_D(QSoftKeyManager);
QAction *action = qobject_cast<QAction*>(sender());
if (!action)
return;
Qt::Key keyToSend = d->keyedActions.value(action, Qt::Key_unknown);
if (keyToSend != Qt::Key_unknown)
QApplication::postEvent(action->parentWidget(),
new QKeyEvent(QEvent::KeyPress, keyToSend, Qt::NoModifier));
}
void QSoftKeyManager::updateSoftKeys()
{
QEvent *event = new QEvent(QEvent::UpdateSoftKeys);
QApplication::postEvent(QSoftKeyManager::instance(), event);
}
bool QSoftKeyManager::appendSoftkeys(const QWidget &source, int level)
{
Q_D(QSoftKeyManager);
bool ret = false;
QList<QAction*> actions = source.actions();
for (int i = 0; i < actions.count(); ++i) {
if (actions.at(i)->softKeyRole() != QAction::NoSoftKey) {
d->requestedSoftKeyActions.insert(level, actions.at(i));
ret = true;
}
}
return ret;
}
QWidget *QSoftKeyManager::softkeySource(QWidget *previousSource, bool& recursiveMerging)
{
Q_D(QSoftKeyManager);
QWidget *source = NULL;
if (!previousSource) {
// Initial source is primarily focuswidget and secondarily activeWindow
source = QApplication::focusWidget();
if (!source)
source = QApplication::activeWindow();
} else {
// Softkey merging is based on four criterias
// 1. Implicit merging is used whenever focus widget does not specify any softkeys
bool implicitMerging = d->requestedSoftKeyActions.isEmpty();
// 2. Explicit merging with parent is used whenever WA_MergeSoftkeys widget attribute is set
bool explicitMerging = previousSource->testAttribute(Qt::WA_MergeSoftkeys);
// 3. Explicit merging with all parents
recursiveMerging |= previousSource->testAttribute(Qt::WA_MergeSoftkeysRecursively);
// 4. Implicit and explicit merging always stops at window boundary
bool merging = (implicitMerging || explicitMerging || recursiveMerging) && !previousSource->isWindow();
source = merging ? previousSource->parentWidget() : NULL;
}
return source;
}
bool QSoftKeyManager::handleUpdateSoftKeys()
{
Q_D(QSoftKeyManager);
int level = 0;
d->requestedSoftKeyActions.clear();
bool recursiveMerging = false;
QWidget *source = softkeySource(NULL, recursiveMerging);
while (source) {
if (appendSoftkeys(*source, level))
++level;
source = softkeySource(source, recursiveMerging);
}
d->updateSoftKeys_sys();
return true;
}
bool QSoftKeyManager::event(QEvent *e)
{
#ifndef QT_NO_ACTION
if (e->type() == QEvent::UpdateSoftKeys)
return handleUpdateSoftKeys();
#endif //QT_NO_ACTION
return false;
}
#ifdef Q_WS_S60
bool QSoftKeyManager::handleCommand(int command)
{
return static_cast<QSoftKeyManagerPrivateS60*>(QSoftKeyManager::instance()->d_func())->handleCommand(command);
}
#endif
QT_END_NAMESPACE
#endif //QT_NO_SOFTKEYMANAGER
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