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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "application_p.h"
#include <QtCore/qcoreapplication.h>
#include <QtDBus/qdbuspendingreply.h>
#include <qdebug.h>
#ifndef QT_NO_ACCESSIBILITY
#include "deviceeventcontroller_adaptor.h"
#include "atspi/atspi-constants.h"
//#define KEYBOARD_DEBUG
QT_BEGIN_NAMESPACE
/*!
\class QSpiApplicationAdaptor
\internal
\brief QSpiApplicationAdaptor
QSpiApplicationAdaptor
*/
QSpiApplicationAdaptor::QSpiApplicationAdaptor(const QDBusConnection &connection, QObject *parent)
: QObject(parent), dbusConnection(connection), inCapsLock(false)
{
}
enum QSpiKeyEventType {
QSPI_KEY_EVENT_PRESS,
QSPI_KEY_EVENT_RELEASE,
QSPI_KEY_EVENT_LAST_DEFINED
};
void QSpiApplicationAdaptor::sendEvents(bool active)
{
if (active) {
qApp->installEventFilter(this);
} else {
qApp->removeEventFilter(this);
}
}
bool QSpiApplicationAdaptor::eventFilter(QObject *target, QEvent *event)
{
if (!event->spontaneous())
return false;
switch (event->type()) {
case QEvent::WindowActivate:
emit windowActivated(target, true);
break;
case QEvent::WindowDeactivate:
emit windowActivated(target, false);
break;
case QEvent::KeyPress:
case QEvent::KeyRelease: {
QKeyEvent *keyEvent = static_cast <QKeyEvent *>(event);
QSpiDeviceEvent de;
if (event->type() == QEvent::KeyPress)
de.type = QSPI_KEY_EVENT_PRESS;
else
de.type = QSPI_KEY_EVENT_RELEASE;
de.id = keyEvent->nativeVirtualKey();
de.hardwareCode = keyEvent->nativeScanCode();
de.timestamp = QDateTime::currentMSecsSinceEpoch();
if (keyEvent->key() == Qt::Key_Tab)
de.text = QStringLiteral("Tab");
else if (keyEvent->key() == Qt::Key_Backtab)
de.text = QStringLiteral("Backtab");
else if (keyEvent->key() == Qt::Key_Control)
de.text = QStringLiteral("Control_L");
else if (keyEvent->key() == Qt::Key_Left)
de.text = (keyEvent->modifiers() & Qt::KeypadModifier) ? QStringLiteral("KP_Left") : QStringLiteral("Left");
else if (keyEvent->key() == Qt::Key_Right)
de.text = (keyEvent->modifiers() & Qt::KeypadModifier) ? QStringLiteral("KP_Right") : QStringLiteral("Right");
else if (keyEvent->key() == Qt::Key_Up)
de.text = (keyEvent->modifiers() & Qt::KeypadModifier) ? QStringLiteral("KP_Up") : QStringLiteral("Up");
else if (keyEvent->key() == Qt::Key_Down)
de.text = (keyEvent->modifiers() & Qt::KeypadModifier) ? QStringLiteral("KP_Down") : QStringLiteral("Down");
else if (keyEvent->key() == Qt::Key_Enter || keyEvent->key() == Qt::Key_Return)
de.text = QStringLiteral("Return");
else if (keyEvent->key() == Qt::Key_Backspace)
de.text = QStringLiteral("BackSpace");
else if (keyEvent->key() == Qt::Key_Delete)
de.text = QStringLiteral("Delete");
else if (keyEvent->key() == Qt::Key_PageUp)
de.text = (keyEvent->modifiers() & Qt::KeypadModifier) ? QStringLiteral("KP_Page_Up") : QStringLiteral("Page_Up");
else if (keyEvent->key() == Qt::Key_PageDown)
de.text = (keyEvent->modifiers() & Qt::KeypadModifier) ? QStringLiteral("KP_Page_Up") : QStringLiteral("Page_Down");
else if (keyEvent->key() == Qt::Key_Home)
de.text = (keyEvent->modifiers() & Qt::KeypadModifier) ? QStringLiteral("KP_Home") : QStringLiteral("Home");
else if (keyEvent->key() == Qt::Key_End)
de.text = (keyEvent->modifiers() & Qt::KeypadModifier) ? QStringLiteral("KP_End") : QStringLiteral("End");
else if (keyEvent->key() == Qt::Key_Clear && (keyEvent->modifiers() & Qt::KeypadModifier))
de.text = QStringLiteral("KP_Begin"); // Key pad 5
else if (keyEvent->key() == Qt::Key_Escape)
de.text = QStringLiteral("Escape");
else if (keyEvent->key() == Qt::Key_Space)
de.text = QStringLiteral("space");
else if (keyEvent->key() == Qt::Key_CapsLock) {
de.text = QStringLiteral("Caps_Lock");
if (event->type() == QEvent::KeyPress)
inCapsLock = true;
else
inCapsLock = false;
} else if (keyEvent->key() == Qt::Key_NumLock)
de.text = QStringLiteral("Num_Lock");
else if (keyEvent->key() == Qt::Key_Insert)
de.text = QStringLiteral("Insert");
else
de.text = keyEvent->text();
// This is a bit dubious, Gnome uses some gtk function here.
// Long term the spec will hopefully change to just use keycodes.
de.isText = !de.text.isEmpty();
de.modifiers = 0;
if (!inCapsLock && keyEvent->modifiers() & Qt::ShiftModifier)
de.modifiers |= 1 << ATSPI_MODIFIER_SHIFT;
if (inCapsLock && (keyEvent->key() != Qt::Key_CapsLock))
de.modifiers |= 1 << ATSPI_MODIFIER_SHIFTLOCK;
if ((keyEvent->modifiers() & Qt::ControlModifier) && (keyEvent->key() != Qt::Key_Control))
de.modifiers |= 1 << ATSPI_MODIFIER_CONTROL;
if ((keyEvent->modifiers() & Qt::AltModifier) && (keyEvent->key() != Qt::Key_Alt))
de.modifiers |= 1 << ATSPI_MODIFIER_ALT;
if ((keyEvent->modifiers() & Qt::MetaModifier) && (keyEvent->key() != Qt::Key_Meta))
de.modifiers |= 1 << ATSPI_MODIFIER_META;
#ifdef KEYBOARD_DEBUG
qDebug() << "Key event text:" << event->type() << de.text
<< "native virtual key:" << de.id
<< "hardware code/scancode:" << de.hardwareCode
<< "modifiers:" << de.modifiers
<< "text:" << de.text;
#endif
QDBusMessage m = QDBusMessage::createMethodCall(QStringLiteral("org.a11y.atspi.Registry"),
QStringLiteral("/org/a11y/atspi/registry/deviceeventcontroller"),
QStringLiteral("org.a11y.atspi.DeviceEventController"), QStringLiteral("NotifyListenersSync"));
m.setArguments(QVariantList() << QVariant::fromValue(de));
// FIXME: this is critical, the timeout should probably be pretty low to allow normal processing
int timeout = 100;
bool sent = dbusConnection.callWithCallback(m, this, SLOT(notifyKeyboardListenerCallback(QDBusMessage)),
SLOT(notifyKeyboardListenerError(QDBusError,QDBusMessage)), timeout);
if (sent) {
//queue the event and send it after callback
keyEvents.enqueue(QPair<QPointer<QObject>, QKeyEvent*> (QPointer<QObject>(target), copyKeyEvent(keyEvent)));
return true;
}
}
default:
break;
}
return false;
}
QKeyEvent* QSpiApplicationAdaptor::copyKeyEvent(QKeyEvent* old)
{
return new QKeyEvent(old->type(), old->key(), old->modifiers(),
old->nativeScanCode(), old->nativeVirtualKey(), old->nativeModifiers(),
old->text(), old->isAutoRepeat(), old->count());
}
void QSpiApplicationAdaptor::notifyKeyboardListenerCallback(const QDBusMessage& message)
{
if (!keyEvents.length()) {
qWarning("QSpiApplication::notifyKeyboardListenerCallback with no queued key called");
return;
}
Q_ASSERT(message.arguments().length() == 1);
if (message.arguments().at(0).toBool() == true) {
QPair<QPointer<QObject>, QKeyEvent*> event = keyEvents.dequeue();
delete event.second;
} else {
QPair<QPointer<QObject>, QKeyEvent*> event = keyEvents.dequeue();
if (event.first)
QCoreApplication::postEvent(event.first.data(), event.second);
}
}
void QSpiApplicationAdaptor::notifyKeyboardListenerError(const QDBusError& error, const QDBusMessage& /*message*/)
{
qWarning() << "QSpiApplication::keyEventError " << error.name() << error.message();
while (!keyEvents.isEmpty()) {
QPair<QPointer<QObject>, QKeyEvent*> event = keyEvents.dequeue();
if (event.first)
QCoreApplication::postEvent(event.first.data(), event.second);
}
}
QT_END_NAMESPACE
#endif //QT_NO_ACCESSIBILITY
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