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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qevdevkeyboardmanager_p.h"
#include <QStringList>
#include <QCoreApplication>
//#define QT_QPA_KEYMAP_DEBUG
#ifdef QT_QPA_KEYMAP_DEBUG
#include <QDebug>
#endif
QT_BEGIN_NAMESPACE
QEvdevKeyboardManager::QEvdevKeyboardManager(const QString &key, const QString &specification, QObject *parent)
: QObject(parent)
{
Q_UNUSED(key);
QString spec = QString::fromLocal8Bit(qgetenv("QT_QPA_EVDEV_KEYBOARD_PARAMETERS"));
if (spec.isEmpty())
spec = specification;
QStringList args = spec.split(QLatin1Char(':'));
QStringList devices;
foreach (const QString &arg, args) {
if (arg.startsWith(QLatin1String("/dev/"))) {
// if device is specified try to use it
devices.append(arg);
args.removeAll(arg);
}
}
// build new specification without /dev/ elements
m_spec = args.join(QLatin1Char(':'));
// add all keyboards for devices specified in the argument list
foreach (const QString &device, devices)
addKeyboard(device);
if (devices.isEmpty()) {
#ifdef QT_QPA_KEYMAP_DEBUG
qWarning() << "Use device discovery";
#endif
m_deviceDiscovery = QDeviceDiscovery::create(QDeviceDiscovery::Device_Keyboard, this);
if (m_deviceDiscovery) {
// scan and add already connected keyboards
QStringList devices = m_deviceDiscovery->scanConnectedDevices();
foreach (const QString &device, devices) {
addKeyboard(device);
}
connect(m_deviceDiscovery, SIGNAL(deviceDetected(QString)), this, SLOT(addKeyboard(QString)));
connect(m_deviceDiscovery, SIGNAL(deviceRemoved(QString)), this, SLOT(removeKeyboard(QString)));
}
}
}
QEvdevKeyboardManager::~QEvdevKeyboardManager()
{
qDeleteAll(m_keyboards);
m_keyboards.clear();
}
void QEvdevKeyboardManager::addKeyboard(const QString &deviceNode)
{
#ifdef QT_QPA_KEYMAP_DEBUG
qWarning() << "Adding keyboard at" << deviceNode;
#endif
QEvdevKeyboardHandler *keyboard;
keyboard = QEvdevKeyboardHandler::create(deviceNode, m_spec, m_defaultKeymapFile);
if (keyboard)
m_keyboards.insert(deviceNode, keyboard);
else
qWarning("Failed to open keyboard");
}
void QEvdevKeyboardManager::removeKeyboard(const QString &deviceNode)
{
if (m_keyboards.contains(deviceNode)) {
#ifdef QT_QPA_KEYMAP_DEBUG
qWarning() << "Removing keyboard at" << deviceNode;
#endif
QEvdevKeyboardHandler *keyboard = m_keyboards.value(deviceNode);
m_keyboards.remove(deviceNode);
delete keyboard;
}
}
void QEvdevKeyboardManager::loadKeymap(const QString &file)
{
m_defaultKeymapFile = file;
if (file.isEmpty()) {
// Restore the default, which is either the built-in keymap or
// the one given in the plugin spec.
QString keymapFromSpec;
foreach (const QString &arg, m_spec.split(QLatin1Char(':'))) {
if (arg.startsWith(QLatin1String("keymap=")))
keymapFromSpec = arg.mid(7);
}
foreach (QEvdevKeyboardHandler *handler, m_keyboards) {
if (keymapFromSpec.isEmpty())
handler->unloadKeymap();
else
handler->loadKeymap(keymapFromSpec);
}
} else {
foreach (QEvdevKeyboardHandler *handler, m_keyboards)
handler->loadKeymap(file);
}
}
QT_END_NAMESPACE
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