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Diffstat (limited to 'src/platformsupport/linuxaccessibility/dbusconnection.cpp')
| -rw-r--r-- | src/platformsupport/linuxaccessibility/dbusconnection.cpp | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/src/platformsupport/linuxaccessibility/dbusconnection.cpp b/src/platformsupport/linuxaccessibility/dbusconnection.cpp deleted file mode 100644 index 45ddc8e496..0000000000 --- a/src/platformsupport/linuxaccessibility/dbusconnection.cpp +++ /dev/null @@ -1,172 +0,0 @@ -/**************************************************************************** -** -** 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 "dbusconnection_p.h" - -#include <QtDBus/QDBusMessage> -#include <QtDBus/QDBusServiceWatcher> -#include <qdebug.h> - -#include <QDBusConnectionInterface> -#include "bus_interface.h" - -#include <QtGui/qguiapplication.h> -#include <qpa/qplatformnativeinterface.h> - -QT_BEGIN_NAMESPACE - -/* note: do not change these to QStringLiteral; - we are unloaded before QtDBus is done using the strings. - */ -#define A11Y_SERVICE QLatin1String("org.a11y.Bus") -#define A11Y_PATH QLatin1String("/org/a11y/bus") - -/*! - \class DBusConnection - \internal - \brief Connects to the accessibility dbus. - - This is usually a different bus from the session bus. -*/ -DBusConnection::DBusConnection(QObject *parent) - : QObject(parent), m_a11yConnection(QString()), m_enabled(false) -{ - // Start monitoring if "org.a11y.Bus" is registered as DBus service. - QDBusConnection c = QDBusConnection::sessionBus(); - if (!c.isConnected()) { - return; - } - - dbusWatcher = new QDBusServiceWatcher(A11Y_SERVICE, c, QDBusServiceWatcher::WatchForRegistration, this); - connect(dbusWatcher, SIGNAL(serviceRegistered(QString)), this, SLOT(serviceRegistered())); - - // If it is registered already, setup a11y right away - if (c.interface()->isServiceRegistered(A11Y_SERVICE)) - serviceRegistered(); - - // In addition try if there is an xatom exposing the bus address, this allows applications run as root to work - QString address = getAddressFromXCB(); - if (!address.isEmpty()) { - m_enabled = true; - connectA11yBus(address); - } -} - -QString DBusConnection::getAddressFromXCB() -{ - QGuiApplication *app = qobject_cast<QGuiApplication *>(QCoreApplication::instance()); - if (!app) - return QString(); - QPlatformNativeInterface *platformNativeInterface = app->platformNativeInterface(); - QByteArray *addressByteArray = reinterpret_cast<QByteArray*>( - platformNativeInterface->nativeResourceForIntegration(QByteArrayLiteral("AtspiBus"))); - if (addressByteArray) { - QString address = QString::fromLatin1(*addressByteArray); - delete addressByteArray; - return address; - } - return QString(); -} - -// We have the a11y registry on the session bus. -// Subscribe to updates about a11y enabled state. -// Find out the bus address -void DBusConnection::serviceRegistered() -{ - // listen to enabled changes - QDBusConnection c = QDBusConnection::sessionBus(); - OrgA11yStatusInterface *a11yStatus = new OrgA11yStatusInterface(A11Y_SERVICE, A11Y_PATH, c, this); - - //The variable was introduced because on some embedded platforms there are custom accessibility - //clients which don't set Status.ScreenReaderEnabled to true. The variable is also useful for - //debugging. - static const bool a11yAlwaysOn = qEnvironmentVariableIsSet("QT_LINUX_ACCESSIBILITY_ALWAYS_ON"); - - bool enabled = a11yAlwaysOn || a11yStatus->screenReaderEnabled() || a11yStatus->isEnabled(); - - if (enabled != m_enabled) { - m_enabled = enabled; - if (m_a11yConnection.isConnected()) { - emit enabledChanged(m_enabled); - } else { - QDBusConnection c = QDBusConnection::sessionBus(); - QDBusMessage m = QDBusMessage::createMethodCall(QLatin1String("org.a11y.Bus"), - QLatin1String("/org/a11y/bus"), - QLatin1String("org.a11y.Bus"), QLatin1String("GetAddress")); - c.callWithCallback(m, this, SLOT(connectA11yBus(QString)), SLOT(dbusError(QDBusError))); - } - } - - // connect(a11yStatus, ); QtDbus doesn't support notifications for property changes yet -} - -void DBusConnection::serviceUnregistered() -{ - emit enabledChanged(false); -} - -void DBusConnection::connectA11yBus(const QString &address) -{ - if (address.isEmpty()) { - qWarning("Could not find Accessibility DBus address."); - return; - } - m_a11yConnection = QDBusConnection(QDBusConnection::connectToBus(address, QLatin1String("a11y"))); - - if (m_enabled) - emit enabledChanged(true); -} - -void DBusConnection::dbusError(const QDBusError &error) -{ - qWarning() << "Accessibility encountered a DBus error:" << error; -} - -/*! - Returns the DBus connection that got established. - Or an invalid connection if not yet connected. -*/ -QDBusConnection DBusConnection::connection() const -{ - return m_a11yConnection; -} - -QT_END_NAMESPACE |