/*
    Copyright 2012 Frederik Gladhorn <gladhorn@kde.org>

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) version 3, or any
    later version accepted by the membership of KDE e.V. (or its
    successor approved by the membership of KDE e.V.), which shall
    act as a proxy defined in Section 6 of version 3 of the license.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "registry_p.h"
#include "registry.h"

#include <qdbusmessage.h>
#include <qdbusargument.h>
#include <qdbusreply.h>
#include <qdbuspendingcall.h>
#include <qdbusinterface.h>
#include <qdbusargument.h>

#include <qdebug.h>
#include <qdbusmessage.h>
#include <qstringlist.h>
#include <qurl.h>

#include "atspi/atspi-constants.h"
#include "atspi/qt-atspi.h"
#include "atspi/dbusconnection.h"

#include <qstring.h>
#include <qhash.h>

#ifdef QT4_BUILD
#define QStringLiteral(x) QLatin1String(x)
#endif

// interface names from at-spi2-core/atspi/atspi-misc-private.h
#define ATSPI_DBUS_NAME_REGISTRY "org.a11y.atspi.Registry"
#define ATSPI_DBUS_PATH_REGISTRY "/org/a11y/atspi/registry"
#define ATSPI_DBUS_INTERFACE_REGISTRY "org.a11y.atspi.Registry"

#define ATSPI_DBUS_PATH_NULL "/org/a11y/atspi/null"
#define ATSPI_DBUS_PATH_ROOT "/org/a11y/atspi/accessible/root"

#define ATSPI_DBUS_PATH_DEC "/org/a11y/atspi/registry/deviceeventcontroller"
#define ATSPI_DBUS_INTERFACE_DEC "org.a11y.atspi.DeviceEventController"
#define ATSPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER "org.a11y.atspi.DeviceEventListener"

#define ATSPI_DBUS_INTERFACE_CACHE "org.a11y.atspi.Cache"
#define ATSPI_DBUS_INTERFACE_ACCESSIBLE "org.a11y.atspi.Accessible"
#define ATSPI_DBUS_INTERFACE_ACTION "org.a11y.atspi.Action"
#define ATSPI_DBUS_INTERFACE_APPLICATION "org.a11y.atspi.Application"
#define ATSPI_DBUS_INTERFACE_COLLECTION "org.a11y.atspi.Collection"
#define ATSPI_DBUS_INTERFACE_COMPONENT "org.a11y.atspi.Component"
#define ATSPI_DBUS_INTERFACE_DOCUMENT "org.a11y.atspi.Document"
#define ATSPI_DBUS_INTERFACE_EDITABLE_TEXT "org.a11y.atspi.EditableText"
#define ATSPI_DBUS_INTERFACE_EVENT_KEYBOARD "org.a11y.atspi.Event.Keyboard"
#define ATSPI_DBUS_INTERFACE_EVENT_MOUSE "org.a11y.atspi.Event.Mouse"
#define ATSPI_DBUS_INTERFACE_EVENT_OBJECT "org.a11y.atspi.Event.Object"
#define ATSPI_DBUS_INTERFACE_HYPERLINK "org.a11y.atspi.Hyperlink"
#define ATSPI_DBUS_INTERFACE_HYPERTEXT "org.a11y.atspi.Hypertext"
#define ATSPI_DBUS_INTERFACE_IMAGE "org.a11y.atspi.Image"
#define ATSPI_DBUS_INTERFACE_SELECTION "org.a11y.atspi.Selection"
#define ATSPI_DBUS_INTERFACE_TABLE "org.a11y.atspi.Table"
#define ATSPI_DBUS_INTERFACE_TEXT "org.a11y.atspi.Text"
#define ATSPI_DBUS_INTERFACE_VALUE "org.a11y.atspi.Value"
#define ATSPI_DBUS_INTERFACE_SOCKET "org.a11y.atspi.Socket"

// missing from at-spi2-core:
#define ATSPI_DBUS_INTERFACE_EVENT_WINDOW "org.a11y.atspi.Event.Window"
#define ATSPI_DBUS_INTERFACE_EVENT_FOCUS  "org.a11y.atspi.Event.Focus"

#define QSPI_OBJECT_PATH_ACCESSIBLE  "/org/a11y/atspi/accessible"
#define QSPI_OBJECT_PATH_PREFIX      "/org/a11y/atspi/accessible/"
#define QSPI_OBJECT_PATH_ROOT    QSPI_OBJECT_PATH_PREFIX "root"

#define QSPI_REGISTRY_NAME "org.a11y.atspi.Registry"

//#define ATSPI_DEBUG

using namespace QAccessibleClient;

QString RegistryPrivate::ACCESSIBLE_OBJECT_SCHEME_STRING = QLatin1String("accessibleobject");

RegistryPrivate::RegistryPrivate(Registry *qq)
    :q(qq)
    , m_subscriptions(Registry::NoEventListeners)
    , m_cache(new CacheWeakStrategy())
{
    connect(&conn, SIGNAL(connectionFetched()), this, SLOT(connectionFetched()));
    connect(&m_actionMapper, SIGNAL(mapped(QString)), this, SLOT(actionTriggered(QString)));
    init();
}

void RegistryPrivate::init()
{
    interfaceHash[QLatin1String(ATSPI_DBUS_INTERFACE_CACHE)] = AccessibleObject::CacheInterface;
    interfaceHash[QLatin1String(ATSPI_DBUS_INTERFACE_ACCESSIBLE)] = AccessibleObject::AccessibleInterface;
    interfaceHash[QLatin1String(ATSPI_DBUS_INTERFACE_ACTION)] = AccessibleObject::ActionInterface;
    interfaceHash[QLatin1String(ATSPI_DBUS_INTERFACE_APPLICATION)] = AccessibleObject::ApplicationInterface;
    interfaceHash[QLatin1String(ATSPI_DBUS_INTERFACE_COLLECTION)] = AccessibleObject::CollectionInterface;
    interfaceHash[QLatin1String(ATSPI_DBUS_INTERFACE_COMPONENT)] = AccessibleObject::ComponentInterface;
    interfaceHash[QLatin1String(ATSPI_DBUS_INTERFACE_DOCUMENT)] = AccessibleObject::DocumentInterface;
    interfaceHash[QLatin1String(ATSPI_DBUS_INTERFACE_EDITABLE_TEXT)] = AccessibleObject::TextInterface;
    interfaceHash[QLatin1String(ATSPI_DBUS_INTERFACE_EVENT_KEYBOARD)] = AccessibleObject::EventKeyboardInterface;
    interfaceHash[QLatin1String(ATSPI_DBUS_INTERFACE_EVENT_MOUSE)] = AccessibleObject::EventMouseInterface;
    interfaceHash[QLatin1String(ATSPI_DBUS_INTERFACE_EVENT_OBJECT)] = AccessibleObject::EventObjectInterface;
    interfaceHash[QLatin1String(ATSPI_DBUS_INTERFACE_HYPERLINK)] = AccessibleObject::HyperlinkInterface;
    interfaceHash[QLatin1String(ATSPI_DBUS_INTERFACE_HYPERTEXT)] = AccessibleObject::HypertextInterface;
    interfaceHash[QLatin1String(ATSPI_DBUS_INTERFACE_IMAGE)] = AccessibleObject::ImageInterface;
    interfaceHash[QLatin1String(ATSPI_DBUS_INTERFACE_SELECTION)] = AccessibleObject::SelectionInterface;
    interfaceHash[QLatin1String(ATSPI_DBUS_INTERFACE_TABLE)] = AccessibleObject::TableInterface;
    interfaceHash[QLatin1String(ATSPI_DBUS_INTERFACE_TEXT)] = AccessibleObject::TextInterface;
    interfaceHash[QLatin1String(ATSPI_DBUS_INTERFACE_VALUE)] = AccessibleObject::ValueInterface;
    interfaceHash[QLatin1String(ATSPI_DBUS_INTERFACE_SOCKET)] = AccessibleObject::SocketInterface;
    interfaceHash[QLatin1String(ATSPI_DBUS_INTERFACE_EVENT_WINDOW)] = AccessibleObject::EventWindowInterface;
    interfaceHash[QLatin1String(ATSPI_DBUS_INTERFACE_EVENT_FOCUS)] = AccessibleObject::EventFocusInterface;
}

bool RegistryPrivate::isEnabled() const
{
    if (conn.status() != DBusConnection::Connected)
        return false;
    QDBusMessage message = QDBusMessage::createMethodCall(
                QLatin1String("org.a11y.Bus"), QLatin1String("/org/a11y/bus"), QLatin1String("org.freedesktop.DBus.Properties"), QLatin1String("Get"));
    message.setArguments(QVariantList() << QLatin1String("org.a11y.Status") << QLatin1String("IsEnabled"));
    QDBusReply<QVariant> reply  = QDBusConnection::sessionBus().call(message);
    if (!reply.isValid())
        return false;
    return reply.value().toBool();
}

void RegistryPrivate::setEnabled(bool enable)
{
    QDBusMessage message = QDBusMessage::createMethodCall(
                QLatin1String("org.a11y.Bus"), QLatin1String("/org/a11y/bus"), QLatin1String("org.freedesktop.DBus.Properties"), QLatin1String("Set"));
    message.setArguments(QVariantList() << QLatin1String("org.a11y.Status") << QLatin1String("IsEnabled") << QVariant::fromValue(QDBusVariant(enable)));
    QDBusMessage reply = QDBusConnection::sessionBus().call(message);
    if (reply.type() == QDBusMessage::ErrorMessage) {
        qWarning() << "Could not set org.a11y.Status.isEnabled." << reply.errorName() << reply.errorMessage();
    }
}

bool RegistryPrivate::isScreenReaderEnabled() const
{
    if (conn.status() != DBusConnection::Connected)
        return false;
    QDBusMessage message = QDBusMessage::createMethodCall(
                QLatin1String("org.a11y.Bus"), QLatin1String("/org/a11y/bus"), QLatin1String("org.freedesktop.DBus.Properties"), QLatin1String("Get"));
    message.setArguments(QVariantList() << QLatin1String("org.a11y.Status") << QLatin1String("ScreenReaderEnabled"));
    QDBusReply<QVariant> reply  = QDBusConnection::sessionBus().call(message);
    if (!reply.isValid())
        return false;
    return reply.value().toBool();
}

void RegistryPrivate::setScreenReaderEnabled(bool enable)
{
    QDBusMessage message = QDBusMessage::createMethodCall(
                QLatin1String("org.a11y.Bus"), QLatin1String("/org/a11y/bus"), QLatin1String("org.freedesktop.DBus.Properties"), QLatin1String("Set"));
    message.setArguments(QVariantList() << QLatin1String("org.a11y.Status") << QLatin1String("ScreenReaderEnabled") << QVariant::fromValue(QDBusVariant(enable)));
    QDBusMessage reply = QDBusConnection::sessionBus().call(message);
    if (reply.type() == QDBusMessage::ErrorMessage) {
        qWarning() << "Could not set org.a11y.Status.ScreenReaderEnabled." << reply.errorName() << reply.errorMessage();
    }
}

AccessibleObject RegistryPrivate::fromUrl(const QUrl &url) const
{
    Q_ASSERT(url.scheme() == ACCESSIBLE_OBJECT_SCHEME_STRING);
    if (url.scheme() != ACCESSIBLE_OBJECT_SCHEME_STRING)
        return AccessibleObject();
    QString path = url.path();
    QString service = url.fragment();
    return accessibleFromPath(service, path);
}

void RegistryPrivate::connectionFetched()
{
    Q_ASSERT(conn.status() == DBusConnection::Connected);

    QDBusConnection session = QDBusConnection::sessionBus();
    if (session.isConnected()) {
        bool connected = session.connect(QLatin1String("org.a11y.Bus"), QLatin1String("/org/a11y/bus"), QLatin1String("org.freedesktop.DBus.Properties"), QLatin1String("PropertiesChanged"), this, SLOT(a11yConnectionChanged(QString,QVariantMap,QStringList)));
        if (!connected)
            qWarning() << Q_FUNC_INFO << "Failed to connect with signal org.a11y.Status.PropertiesChanged on org.a11y.Bus";
    }

    if (m_pendingSubscriptions > 0) {
        subscribeEventListeners(m_pendingSubscriptions);
        m_pendingSubscriptions = 0;
    }
}

void RegistryPrivate::subscribeEventListeners(const Registry::EventListeners &listeners)
{
    if (conn.isFetchingConnection()) {
        m_pendingSubscriptions = listeners;
        return;
    }

    Registry::EventListeners addedListeners = listeners & ~m_subscriptions;
    Registry::EventListeners removedListeners = m_subscriptions & ~listeners;

    QStringList newSubscriptions;
    QStringList removedSubscriptions;

    if (removedListeners.testFlag(Registry::Window)) {
        removedSubscriptions << QLatin1String("window:");
    } else if (addedListeners.testFlag(Registry::Window)) {
        // subscribe all window events
        newSubscriptions << QLatin1String("window:");

        bool created = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Window"), QLatin1String("Create"),
                    this, SLOT(slotWindowCreate(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));
        bool destroyed = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Window"), QLatin1String("Destroy"),
                    this, SLOT(slotWindowDestroy(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));

        bool closed = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Window"), QLatin1String("Close"),
                    this, SLOT(slotWindowClose(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));
        bool reparented = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Window"), QLatin1String("Reparent"),
                    this, SLOT(slotWindowReparent(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));

        bool minimized = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Window"), QLatin1String("Minimize"),
                    this, SLOT(slotWindowMinimize(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));
        bool maximized = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Window"), QLatin1String("Maximize"),
                    this, SLOT(slotWindowMaximize(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));
        bool restored = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Window"), QLatin1String("Restore"),
                    this, SLOT(slotWindowRestore(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));

        bool activated = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Window"), QLatin1String("Activate"),
                    this, SLOT(slotWindowActivate(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));
        bool deactivated = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Window"), QLatin1String("Deactivate"),
                    this, SLOT(slotWindowDeactivate(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));

        bool desktopCreated = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Window"), QLatin1String("DesktopCreate"),
                    this, SLOT(slotWindowDesktopCreate(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));
        bool desktopDestroyed = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Window"), QLatin1String("DesktopDestroy"),
                    this, SLOT(slotWindowDesktopDestroy(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));
        bool raised = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Window"), QLatin1String("Raise"),
                    this, SLOT(slotWindowRaise(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));
        bool lowered = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Window"), QLatin1String("Lower"),
                    this, SLOT(slotWindowLower(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));
        bool moved = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Window"), QLatin1String("Move"),
                    this, SLOT(slotWindowMove(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));
        bool resized = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Window"), QLatin1String("Resize"),
                    this, SLOT(slotWindowResize(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));
        bool shaded = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Window"), QLatin1String("Shade"),
                    this, SLOT(slotWindowShade(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));
        bool unshaded = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Window"), QLatin1String("Unshade"),
                    this, SLOT(slotWindowUnshade(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));

        if (!created || !destroyed || !closed || !reparented || !minimized || !maximized || !restored || 
            !activated || !deactivated || !desktopCreated || !desktopDestroyed ||
            !raised || !lowered || !moved || !resized || !shaded || !unshaded
        ) {
            qWarning() << "Could not subscribe to Window event(s)."
                       << "created:" << created << "destroyed:" << destroyed
                       << "closed:" << closed << "reparented:" << reparented
                       << "minimized:" << minimized << "maximized:" << maximized << "restored:" << restored
                       << "activated:" << activated << "deactivated:" << deactivated
                       << "desktopCreated:" << desktopCreated << "desktopDestroyed:" << desktopDestroyed
                       << "raised:" << raised << "lowered:" << lowered
                       << "moved:" << moved << "resized:" << resized
                       << "shaded:" << shaded << "unshaded:" << unshaded
                       ;
        }
    }

    if (removedListeners.testFlag(Registry::ChildrenChanged)) {
        removedSubscriptions << QLatin1String("object:children-changed");
    } else if (addedListeners.testFlag(Registry::ChildrenChanged)) {
        newSubscriptions << QLatin1String("object:children-changed");
        bool success = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Object"), QLatin1String("ChildrenChanged"),
                    this, SLOT(slotChildrenChanged(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));
        if (!success) qWarning() << "Could not subscribe to accessibility ChildrenChanged events.";
    }

    if (removedListeners.testFlag(Registry::VisibleDataChanged)) {
        removedSubscriptions << QLatin1String("object:visibledata-changed");
    } else if (addedListeners.testFlag(Registry::VisibleDataChanged)) {
        newSubscriptions << QLatin1String("object:visibledata-changed");
        bool success = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Object"), QLatin1String("VisibleDataChanged"),
                    this, SLOT(slotVisibleDataChanged(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));
        if (!success) qWarning() << "Could not subscribe to accessibility VisibleDataChanged events.";
    }

    if (removedListeners.testFlag(Registry::SelectionChanged)) {
        removedSubscriptions << QLatin1String("object:selection-changed");
    } else if (addedListeners.testFlag(Registry::SelectionChanged)) {
        newSubscriptions << QLatin1String("object:selection-changed");
        bool success = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Object"), QLatin1String("SelectionChanged"),
                    this, SLOT(slotSelectionChanged(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));
        if (!success) qWarning() << "Could not subscribe to accessibility SelectionChanged events.";
    }


    if (removedListeners.testFlag(Registry::ModelChanged)) {
        removedSubscriptions << QLatin1String("object:model-changed");
    } else if (addedListeners.testFlag(Registry::ModelChanged)) {
        newSubscriptions << QLatin1String("object:model-changed");
        bool success = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Object"), QLatin1String("ModelChanged"),
                    this, SLOT(slotModelChanged(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));
        if (!success) qWarning() << "Could not subscribe to accessibility ModelChanged events.";
    }

    // we need state-changed-focus for focus events
    if ((removedListeners.testFlag(Registry::StateChanged) || removedListeners.testFlag(Registry::Focus))
            && (!(addedListeners.testFlag(Registry::StateChanged) || addedListeners.testFlag(Registry::Focus)))) {
        removedSubscriptions << QLatin1String("object:state-changed");
    } else if (addedListeners.testFlag(Registry::StateChanged) || addedListeners.testFlag(Registry::Focus)) {
        if (listeners.testFlag(Registry::Focus)) newSubscriptions << QLatin1String("focus:");
        newSubscriptions << QLatin1String("object:state-changed");
        bool success = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Object"), QLatin1String("StateChanged"),
                    this, SLOT(slotStateChanged(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));
        if (!success) qWarning() << "Could not subscribe to accessibility Focus events.";
    }

    if (removedListeners.testFlag(Registry::TextChanged)) {
        removedSubscriptions << QLatin1String("object:text-changed");
    } else if (addedListeners.testFlag(Registry::TextChanged)) {
        newSubscriptions << QLatin1String("object:text-changed");
        bool success = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Object"), QLatin1String("TextChanged"),
                    this, SLOT(slotTextChanged(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));
        if (!success) qWarning() << "Could not subscribe to accessibility TextChanged events.";
    }

    if (removedListeners.testFlag(Registry::TextCaretMoved)) {
        removedSubscriptions << QLatin1String("object:text-caret-moved");
    } else if (addedListeners.testFlag(Registry::TextCaretMoved)) {
        newSubscriptions << QLatin1String("object:text-caret-moved");
        bool success = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Object"), QLatin1String("TextCaretMoved"),
                    this, SLOT(slotTextCaretMoved(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));
        if (!success) qWarning() << "Could not subscribe to accessibility TextCaretMoved events.";
    }

    if (removedListeners.testFlag(Registry::TextSelectionChanged)) {
        removedSubscriptions << QLatin1String("object:text-selection-changed");
    } else if (addedListeners.testFlag(Registry::TextSelectionChanged)) {
        newSubscriptions << QLatin1String("object:text-selection-changed");
        bool success = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Object"), QLatin1String("TextSelectionChanged"),
                    this, SLOT(slotTextSelectionChanged(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));
        if (!success) qWarning() << "Could not subscribe to accessibility TextSelectionChanged events.";
    }

    if (removedListeners.testFlag(Registry::PropertyChanged)) {
        removedSubscriptions << QLatin1String("object:property-change");
    } else if (addedListeners.testFlag(Registry::PropertyChanged )) {
        newSubscriptions << QLatin1String("object:property-change");
        bool success = conn.connection().connect(
                    QString(), QLatin1String(""), QLatin1String("org.a11y.atspi.Event.Object"), QLatin1String("PropertyChange"),
                    this, SLOT(slotPropertyChange(QString,int,int,QDBusVariant,QAccessibleClient::QSpiObjectReference)));
        if (!success) qWarning() << "Could not subscribe to accessibility PropertyChange events.";
    }

    Q_FOREACH(const QString &subscription, newSubscriptions) {
        QDBusMessage m = QDBusMessage::createMethodCall(QLatin1String("org.a11y.atspi.Registry"),
                                                        QLatin1String("/org/a11y/atspi/registry"),
                                                        QLatin1String("org.a11y.atspi.Registry"), QLatin1String("RegisterEvent"));
        m.setArguments(QVariantList() << subscription);

        QDBusPendingCall async = conn.connection().asyncCall(m);
        QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(async, this);
        QObject::connect(watcher, SIGNAL(finished(QDBusPendingCallWatcher*)), this, SLOT(slotSubscribeEventListenerFinished(QDBusPendingCallWatcher*)));
    }

    Q_FOREACH(const QString &subscription, removedSubscriptions) {
        QDBusMessage m = QDBusMessage::createMethodCall(QLatin1String("org.a11y.atspi.Registry"),
                                                        QLatin1String("/org/a11y/atspi/registry"),
                                                        QLatin1String("org.a11y.atspi.Registry"), QLatin1String("DeregisterEvent"));
        m.setArguments(QVariantList() << subscription);
        conn.connection().asyncCall(m);
    }

    m_subscriptions = listeners;

// accerciser
//     (u':1.7', u'Object:StateChanged:'),
//     (u':1.7', u'Object:BoundsChanged:'),
//     (u':1.7', u'Object:VisibleDataChanged:'),
//     (u':1.7', u'Object:StateChanged:'),
// orca
//    [(u':1.8', u'Object:ChildrenChanged:'),
//     (u':1.8', u'Mouse:Button:'),
//     (u':1.8', u'Mouse:Abs:'),
//     (u':1.8', u'Object:StateChanged:Selected'),
//     (u':1.8', u'Object:StateChanged:Expanded'),
//     (u':1.8', u'Object:ValueChanged:'),
//     (u':1.8', u'Object:StateChanged:Focused'),
//     (u':1.8', u'Object:StateChanged:Active'),
//     (u':1.8', u'Window:Create:'),
//     (u':1.8', u'Object:TextAttributesChanged:'),
//     (u':1.8', u'Object:TextCaretMoved:'),
//     (u':1.8', u'Object:SelectionChanged:'),
//     (u':1.8', u'Focus::'),
//     (u':1.8', u'Object:ActiveDescendantChanged:'),
//     (u':1.8', u'Object:PropertyChange:AccessibleName'),
//     (u':1.8', u'Window:Activate:'),
//     (u':1.8', u'Window:Deactivate:'),
//     (u':1.8', u'Mouse:Button:'),
//     (u':1.8', u'Object:StateChanged:Indeterminate'),
//     (u':1.8', u'Object:LinkSelected:'),
//     (u':1.8', u'Object:TextChanged:Insert'),
//     (u':1.8', u'Object:PropertyChange:AccessibleValue'),
//     (u':1.8', u'Object:TextSelectionChanged:'),
// //     (u':1.8', u'Object:StateChanged:Showing'),
//     (u':1.8', u'Object:TextChanged:Delete'),
//     (u':1.8', u'Object:StateChanged:Pressed'),
//     (u':1.8', u'Object:StateChanged:Checked'),
//     (u':1.8', u'Object:ChildrenChanged:Remove')]

}

Registry::EventListeners RegistryPrivate::eventListeners() const
{
    return m_subscriptions | m_pendingSubscriptions;
}

void RegistryPrivate::slotSubscribeEventListenerFinished(QDBusPendingCallWatcher *call)
{
    if (call->isError()) {
        qWarning() << "Could not subscribe to accessibility event: " << call->error().type() << call->error().message();
    }
    call->deleteLater();
}

void RegistryPrivate::a11yConnectionChanged(const QString &interface,const QVariantMap &changedProperties, const QStringList &invalidatedProperties)
{
    //qDebug() << Q_FUNC_INFO << "interface=" << interface << "changedProperties=" << changedProperties << "invalidatedProperties=" << invalidatedProperties;
    if (conn.status() != DBusConnection::Connected)
        return;
    if (interface == QLatin1String("org.a11y.Status")) {
        QVariantMap::ConstIterator IsEnabledIt = changedProperties.constFind(QLatin1String("IsEnabled"));
        if (IsEnabledIt != changedProperties.constEnd())
            emit q->enabledChanged(IsEnabledIt.value().toBool());
        else if (invalidatedProperties.contains(QLatin1String("IsEnabled")))
            emit q->enabledChanged(isEnabled());

        QVariantMap::ConstIterator ScreenReaderEnabledIt = changedProperties.constFind(QLatin1String("ScreenReaderEnabled"));
        if (ScreenReaderEnabledIt != changedProperties.constEnd())
            emit q->screenReaderEnabledChanged(ScreenReaderEnabledIt.value().toBool());
        else if (invalidatedProperties.contains(QLatin1String("ScreenReaderEnabled")))
            emit q->screenReaderEnabledChanged(isScreenReaderEnabled());
    }
}

AccessibleObject RegistryPrivate::parentAccessible(const AccessibleObject &object) const
{
    QVariant parent = getProperty(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Accessible"), QLatin1String("Parent"));
    if (!parent.isValid())
        return AccessibleObject();
    const QDBusArgument arg = parent.value<QDBusArgument>();
    QSpiObjectReference ref;
    arg >> ref;

    if (ref.path.path() == object.d->path) {
        qWarning() << "WARNING: Accessible claims to be its own parent: " << object;
        return AccessibleObject();
    }

    if (ref.service.isEmpty() || ref.path.path().isEmpty())
        return AccessibleObject();

    return AccessibleObject(const_cast<RegistryPrivate*>(this), ref.service, ref.path.path());
}

int RegistryPrivate::childCount(const AccessibleObject &object) const
{
    QVariant childCount = getProperty(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Accessible"), QLatin1String("ChildCount"));
    return childCount.toInt();
}

int RegistryPrivate::indexInParent(const AccessibleObject &object) const
{
    QDBusMessage message = QDBusMessage::createMethodCall (
                object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Accessible"), QLatin1String("GetIndexInParent"));

    QDBusReply<int> reply = conn.connection().call(message);
    if (!reply.isValid()) {
        QDBusReply<uint> reply2 = conn.connection().call(message);
        if (reply2.isValid()) {
            qWarning() << "Found old api returning uint in GetIndexInParent." << reply.error().message();
            return static_cast<int>(reply.value());
        }
        qWarning() << "Could not access index in parent." << reply.error().message();
        return -1;
    }
    return reply.value();
}

AccessibleObject RegistryPrivate::child(const AccessibleObject &object, int index) const
{
    QDBusMessage message = QDBusMessage::createMethodCall (
                object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Accessible"), QLatin1String("GetChildAtIndex"));
    QVariantList args;
    args << index;
    message.setArguments(args);

    QDBusReply<QSpiObjectReference> reply = conn.connection().call(message);
    if (!reply.isValid()) {
        qWarning() << "Could not access child." << reply.error().message();
        return AccessibleObject();
    }
    const QSpiObjectReference child = reply.value();
    return AccessibleObject(const_cast<RegistryPrivate*>(this), child.service, child.path.path());
}

QList<AccessibleObject> RegistryPrivate::children(const AccessibleObject &object) const
{
    QList<AccessibleObject> accs;

    QDBusMessage message = QDBusMessage::createMethodCall (
                object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Accessible"), QLatin1String("GetChildren"));

    QDBusReply<QSpiObjectReferenceList> reply = conn.connection().call(message, QDBus::Block, 500);
    if (!reply.isValid()) {
        qWarning() << "Could not access children." << reply.error().message();
        return accs;
    }

    const QSpiObjectReferenceList children = reply.value();
    Q_FOREACH(const QSpiObjectReference &child, children) {
        accs.append(AccessibleObject(const_cast<RegistryPrivate*>(this), child.service, child.path.path()));
    }

    return accs;
}

QList<AccessibleObject> RegistryPrivate::topLevelAccessibles() const
{
    QString service = QLatin1String("org.a11y.atspi.Registry");
    QString path = QLatin1String("/org/a11y/atspi/accessible/root");
    return children(AccessibleObject(const_cast<RegistryPrivate*>(this), service, path));
}

QString RegistryPrivate::name(const AccessibleObject &object) const
{
    if (!object.isValid())
        return QString();
    return getProperty(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Accessible"), QLatin1String("Name")).toString();
}

QString RegistryPrivate::description(const AccessibleObject &object) const
{
    if (!object.isValid())
        return QString();
    return getProperty(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Accessible"), QLatin1String("Description")).toString();
}

AccessibleObject::Role RegistryPrivate::role(const AccessibleObject &object) const
{
    if (!object.isValid())
        return AccessibleObject::NoRole;

    QDBusMessage message = QDBusMessage::createMethodCall (
                object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Accessible"), QLatin1String("GetRole"));

    QDBusReply<uint> reply = conn.connection().call(message);
    if (!reply.isValid()) {
        qWarning() << "Could not access role." << reply.error().message();
        return AccessibleObject::NoRole;
    }
    return atspiRoleToRole((AtspiRole)reply.value());
}

AccessibleObject::Role RegistryPrivate::atspiRoleToRole(AtspiRole role)
{
    switch (role) {
    case ATSPI_ROLE_INVALID: return AccessibleObject::NoRole;
//    case ATSPI_ROLE_ACCELERATOR_LABEL: return AccessibleObject::;
//    case ATSPI_ROLE_ALERT: return AccessibleObject::;
//    case ATSPI_ROLE_ANIMATION: return AccessibleObject::;
//    case ATSPI_ROLE_ARROW: return AccessibleObject::;
//    case ATSPI_ROLE_CALENDAR: return AccessibleObject::;
//    case ATSPI_ROLE_CANVAS: return AccessibleObject::;
    case ATSPI_ROLE_CHECK_BOX: return AccessibleObject::CheckBox;
    case ATSPI_ROLE_CHECK_MENU_ITEM: return AccessibleObject::CheckableMenuItem;
//    case ATSPI_ROLE_COLOR_CHOOSER: return AccessibleObject::;
    case ATSPI_ROLE_COLUMN_HEADER: return AccessibleObject::ColumnHeader;
    case ATSPI_ROLE_COMBO_BOX: return AccessibleObject::ComboBox;
//    case ATSPI_ROLE_DATE_EDITOR: return AccessibleObject::;
//    case ATSPI_ROLE_DESKTOP_ICON: return AccessibleObject::;
    case ATSPI_ROLE_DESKTOP_FRAME: return AccessibleObject::DesktopFrame;
//    case ATSPI_ROLE_DIAL: return AccessibleObject::;
    case ATSPI_ROLE_DIALOG: return AccessibleObject::Dialog;
//    case ATSPI_ROLE_DIRECTORY_PANE: return AccessibleObject::;
//    case ATSPI_ROLE_DRAWING_AREA: return AccessibleObject::;
//    case ATSPI_ROLE_FILE_CHOOSER: return AccessibleObject::;
    case ATSPI_ROLE_FILLER: return AccessibleObject::Filler;
//    case ATSPI_ROLE_FOCUS_TRAVERSABLE: return AccessibleObject::;
//    case ATSPI_ROLE_FONT_CHOOSER: return AccessibleObject::;
    case ATSPI_ROLE_FRAME: return AccessibleObject::Frame;
//    case ATSPI_ROLE_GLASS_PANE: return AccessibleObject::;
//    case ATSPI_ROLE_HTML_CONTAINER: return AccessibleObject::;
    case ATSPI_ROLE_ICON: return AccessibleObject::Icon;
//    case ATSPI_ROLE_IMAGE: return AccessibleObject::;
//    case ATSPI_ROLE_INTERNAL_FRAME: return AccessibleObject::;
    case ATSPI_ROLE_LABEL: return AccessibleObject::Label;
//    case ATSPI_ROLE_LAYERED_PANE: return AccessibleObject::;
    case ATSPI_ROLE_LIST: return AccessibleObject::ListView;
    case ATSPI_ROLE_LIST_ITEM: return AccessibleObject::ListItem;
    case ATSPI_ROLE_MENU: return AccessibleObject::Menu;
    case ATSPI_ROLE_MENU_BAR: return AccessibleObject::MenuBar;
    case ATSPI_ROLE_MENU_ITEM: return AccessibleObject::MenuItem;
//    case ATSPI_ROLE_OPTION_PANE: return AccessibleObject::;
    case ATSPI_ROLE_PAGE_TAB: return AccessibleObject::Tab;
    case ATSPI_ROLE_PAGE_TAB_LIST: return AccessibleObject::TabContainer;
//    case ATSPI_ROLE_PANEL: return AccessibleObject::;
    case ATSPI_ROLE_PASSWORD_TEXT: return AccessibleObject::PasswordText;
    case ATSPI_ROLE_POPUP_MENU: return AccessibleObject::PopupMenu;
    case ATSPI_ROLE_PROGRESS_BAR: return AccessibleObject::ProgressBar;
    case ATSPI_ROLE_PUSH_BUTTON: return AccessibleObject::Button;
    case ATSPI_ROLE_RADIO_BUTTON: return AccessibleObject::RadioButton;
    case ATSPI_ROLE_RADIO_MENU_ITEM: return AccessibleObject::RadioMenuItem;
//    case ATSPI_ROLE_ROOT_PANE: return AccessibleObject::;
    case ATSPI_ROLE_ROW_HEADER: return AccessibleObject::RowHeader;
    case ATSPI_ROLE_SCROLL_BAR: return AccessibleObject::ScrollBar;
    case ATSPI_ROLE_SCROLL_PANE: return AccessibleObject::ScrollArea;
    case ATSPI_ROLE_SEPARATOR: return AccessibleObject::Separator;
    case ATSPI_ROLE_SLIDER: return AccessibleObject::Slider;
    case ATSPI_ROLE_SPIN_BUTTON: return AccessibleObject::SpinButton;
//    case ATSPI_ROLE_SPLIT_PANE: return AccessibleObject::;
    case ATSPI_ROLE_STATUS_BAR: return AccessibleObject::StatusBar;
    case ATSPI_ROLE_TABLE: return AccessibleObject::TableView;
    case ATSPI_ROLE_TABLE_CELL: return AccessibleObject::TableCell;
    case ATSPI_ROLE_TABLE_COLUMN_HEADER: return AccessibleObject::TableColumnHeader;
    case ATSPI_ROLE_TABLE_ROW_HEADER: return AccessibleObject::TableRowHeader;
//    case ATSPI_ROLE_TEAROFF_MENU_ITEM: return AccessibleObject::;
    case ATSPI_ROLE_TERMINAL: return AccessibleObject::Terminal;
    case ATSPI_ROLE_TEXT: return AccessibleObject::Text;
    case ATSPI_ROLE_TOGGLE_BUTTON: return AccessibleObject::ToggleButton;
    case ATSPI_ROLE_TOOL_BAR: return AccessibleObject::ToolBar;
    case ATSPI_ROLE_TOOL_TIP: return AccessibleObject::ToolTip;
    case ATSPI_ROLE_TREE: return AccessibleObject::TreeView;
    case ATSPI_ROLE_TREE_TABLE: return AccessibleObject::TreeView;
    case ATSPI_ROLE_UNKNOWN: return AccessibleObject::NoRole;
//    case ATSPI_ROLE_VIEWPORT: return AccessibleObject::;
    case ATSPI_ROLE_WINDOW: return AccessibleObject::Window;
//    case ATSPI_ROLE_EXTENDED: return AccessibleObject::;
//    case ATSPI_ROLE_HEADER: return AccessibleObject::;
//    case ATSPI_ROLE_FOOTER: return AccessibleObject::;
//    case ATSPI_ROLE_PARAGRAPH: return AccessibleObject::;
//    case ATSPI_ROLE_RULER: return AccessibleObject::;
//    case ATSPI_ROLE_APPLICATION: return AccessibleObject::;
//    case ATSPI_ROLE_AUTOCOMPLETE: return AccessibleObject::;
//    case ATSPI_ROLE_EDITBAR: return AccessibleObject::;
//    case ATSPI_ROLE_EMBEDDED: return AccessibleObject::;
//    case ATSPI_ROLE_ENTRY: return AccessibleObject::;
//    case ATSPI_ROLE_CHART: return AccessibleObject::;
//    case ATSPI_ROLE_CAPTION: return AccessibleObject::;
//    case ATSPI_ROLE_DOCUMENT_FRAME: return AccessibleObject::;
//    case ATSPI_ROLE_HEADING: return AccessibleObject::;
//    case ATSPI_ROLE_PAGE: return AccessibleObject::;
//    case ATSPI_ROLE_SECTION: return AccessibleObject::;
//    case ATSPI_ROLE_REDUNDANT_OBJECT: return AccessibleObject::;
//    case ATSPI_ROLE_FORM: return AccessibleObject::;
//    case ATSPI_ROLE_LINK: return AccessibleObject::;
//    case ATSPI_ROLE_INPUT_METHOD_WINDOW: return AccessibleObject::;
    case ATSPI_ROLE_TABLE_ROW: return AccessibleObject::TableRow;
    case ATSPI_ROLE_TREE_ITEM: return AccessibleObject::TreeItem;
//    case ATSPI_ROLE_DOCUMENT_SPREADSHEET: return AccessibleObject::;
//    case ATSPI_ROLE_DOCUMENT_PRESENTATION: return AccessibleObject::;
//    case ATSPI_ROLE_DOCUMENT_TEXT: return AccessibleObject::;
//    case ATSPI_ROLE_DOCUMENT_WEB: return AccessibleObject::;
//    case ATSPI_ROLE_DOCUMENT_EMAIL: return AccessibleObject::;
//    case ATSPI_ROLE_COMMENT: return AccessibleObject::;
//    case ATSPI_ROLE_LIST_BOX: return AccessibleObject::;
//    case ATSPI_ROLE_GROUPING: return AccessibleObject::;
//    case ATSPI_ROLE_IMAGE_MAP: return AccessibleObject::;
//    case ATSPI_ROLE_NOTIFICATION: return AccessibleObject::;
//    case ATSPI_ROLE_INFO_BAR: return AccessibleObject::;
//    case ATSPI_ROLE_LAST_DEFINED: return AccessibleObject::;
    }
    return AccessibleObject::NoRole;
}

QString RegistryPrivate::roleName(const AccessibleObject &object) const
{
    QDBusMessage message = QDBusMessage::createMethodCall (
                object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Accessible"), QLatin1String("GetRoleName"));

    QDBusReply<QString> reply = conn.connection().call(message);
    if (!reply.isValid()) {
        qWarning() << "Could not access roleName." << reply.error().message();
        return QString();
    }
    return reply.value();
}

QString RegistryPrivate::localizedRoleName(const AccessibleObject &object) const
{
    QDBusMessage message = QDBusMessage::createMethodCall (
                object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Accessible"), QLatin1String("GetLocalizedRoleName"));

    QDBusReply<QString> reply = conn.connection().call(message);
    if (!reply.isValid()) {
        qWarning() << "Could not access localizedRoleName." << reply.error().message();\
        return QString();
    }
    return reply.value();
}

quint64 RegistryPrivate::state(const AccessibleObject &object) const
{
    QDBusMessage message = QDBusMessage::createMethodCall (
                object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Accessible"), QLatin1String("GetState"));

    QDBusReply<QList<quint32> > reply = conn.connection().call(message);
    if (!reply.isValid()) {
        qWarning() << "Could not access state." << reply.error().message();
        return 0;
    }
    int low = reply.value().at(0);
    int high = reply.value().at(1);
    quint64 state = low + ((quint64)high << 32);
    return state;
}

int RegistryPrivate::layer(const AccessibleObject &object) const
{
    QDBusMessage message = QDBusMessage::createMethodCall (
                object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Component"), QLatin1String("GetLayer"));
    QDBusReply<uint> reply = conn.connection().call(message);
    if (!reply.isValid()) {
        qWarning() << "Could not access layer." << reply.error().message();
        return 1;
    }
    return reply.value();
}

int RegistryPrivate::mdiZOrder(const AccessibleObject &object) const
{
    QDBusMessage message = QDBusMessage::createMethodCall (
                object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Component"), QLatin1String("GetMDIZOrder"));
    QDBusReply<short> reply = conn.connection().call(message);
    if (!reply.isValid()) {
        qWarning() << "Could not access mdiZOrder." << reply.error().message();
        return 0;
    }
    return reply.value();
}

double RegistryPrivate::alpha(const AccessibleObject &object) const
{
    QDBusMessage message = QDBusMessage::createMethodCall (
                object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Component"), QLatin1String("GetAlpha"));
    QDBusReply<double> reply = conn.connection().call(message);
    if (!reply.isValid()) {
        qWarning() << "Could not access alpha." << reply.error().message();
        return 1.0;
    }
    return reply.value();
}

QRect RegistryPrivate::boundingRect(const AccessibleObject &object) const
{
    QDBusMessage message = QDBusMessage::createMethodCall(
            object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Component"), QLatin1String("GetExtents") );
    QVariantList args;
    quint32 coords = ATSPI_COORD_TYPE_SCREEN;
    args << coords;
    message.setArguments(args);

    QDBusReply< QRect > reply = conn.connection().call(message);
    if(!reply.isValid()){
        qWarning() << "Could not get extents." << reply.error().message();
        return QRect();
    }

    return QRect( reply.value() );
}

QRect RegistryPrivate::characterRect(const AccessibleObject &object, int offset) const
{
    QDBusMessage message = QDBusMessage::createMethodCall(
            object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Text"),
                    QLatin1String("GetCharacterExtents"));

    QVariantList args;
    quint32 coords = ATSPI_COORD_TYPE_SCREEN;
    args << offset;
    args << coords;
    message.setArguments(args);


    QDBusReply< QRect > reply = conn.connection().call(message);
    if(!reply.isValid()){
        if (reply.error().type() == QDBusError::InvalidSignature) {
            QDBusMessage reply2 = conn.connection().call(message);
            if (reply2.signature() != QLatin1String("iiii")) {
                qWarning() << "Could not get Character Extents. " << reply.error().message();
                return QRect();
            }
            QList<QVariant> args = reply2.arguments();
            QRect rect(args.at(0).toInt(), args.at(1).toInt(), args.at(2).toInt(), args.at(3).toInt());
            return rect;
        }
    }

    return reply.value();
}

AccessibleObject::Interfaces RegistryPrivate::supportedInterfaces(const AccessibleObject &object) const
{
    if (m_cache) {
        AccessibleObject::Interfaces interfaces = m_cache->interfaces(object);
        if (!(interfaces & AccessibleObject::InvalidInterface))
            return interfaces;
    }

    QDBusMessage message = QDBusMessage::createMethodCall(
            object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Accessible"),
                    QLatin1String("GetInterfaces"));

    QDBusReply<QStringList > reply = conn.connection().call(message);
    if(!reply.isValid()){
        qWarning() << "Could not get Interfaces. " << reply.error().message();
        return AccessibleObject::NoInterface;
    }

    AccessibleObject::Interfaces interfaces = AccessibleObject::NoInterface;
    Q_FOREACH(const QString &interface, reply.value()){
        interfaces |= interfaceHash[interface];
    }

    m_cache->setInterfaces(object, interfaces);

    return interfaces;
}

int RegistryPrivate::caretOffset(const AccessibleObject &object) const
{
    QVariant offset= getProperty(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Text"), QLatin1String("CaretOffset"));
    if (offset.isNull()) qWarning() << "Could not get caret offset";
    return offset.toInt();
}

int RegistryPrivate::characterCount(const AccessibleObject &object) const
{
    QVariant count = getProperty(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Text"), QLatin1String("CharacterCount"));
    if (count.isNull()) qWarning() << "Could not get character count";
    return count.toInt();
}

QList< QPair<int,int> > RegistryPrivate::textSelections(const AccessibleObject &object) const
{
    QList< QPair<int,int> > result;
    QDBusMessage message = QDBusMessage::createMethodCall(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Text"), QLatin1String("GetNSelections"));
    QDBusReply<int> reply = conn.connection().call(message);
    if (!reply.isValid()) {
        qWarning() << "Could not access GetNSelections." << reply.error().message();
        return result;
    }
    int count = reply.value();
    for(int i = 0; i < count; ++i) {
        QDBusMessage m = QDBusMessage::createMethodCall(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Text"), QLatin1String("GetSelection"));
        m.setArguments(QVariantList() << i);
        m = conn.connection().call(m);
        QList<QVariant> args = m.arguments();
        if (args.count() < 2) {
            qWarning() << "Invalid number of arguments. Expected=2 Actual=" << args.count();
            continue;
        }
        int startOffset = args[0].toInt();
        int endOffset = args[1].toInt();
        if (startOffset > endOffset)
            qSwap(startOffset, endOffset);
        result.append(qMakePair(startOffset, endOffset));
    }
    return result;
}

void RegistryPrivate::setTextSelections(const AccessibleObject &object, const QList< QPair<int,int> > &selections)
{
    QDBusMessage message = QDBusMessage::createMethodCall(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Text"), QLatin1String("GetNSelections"));
    QDBusReply<int> reply = conn.connection().call(message);
    if (!reply.isValid()) {
        qWarning() << "Could not access GetNSelections." << reply.error().message();
        return;
    }
    int count = reply.value();
    int setSel = qMin(selections.count(), count);
    for(int i = 0; i < setSel; ++i) {
        Q_ASSERT(i < selections.count());
        QPair<int,int> p = selections[i];
        QDBusMessage m = QDBusMessage::createMethodCall(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Text"), QLatin1String("SetSelection"));
        m.setArguments(QVariantList() << i << p.first << p.second);
        QDBusReply<bool> r = conn.connection().call(m);
        if (!r.isValid()) {
            qWarning() << "Failed call text.SetSelection." << r.error().message();
            continue;
        }
    }
    int removeSel = qMax(0, count - selections.count());
    for(int i = 0, k = selections.count(); i < removeSel; ++i, ++k) {
        QDBusMessage m = QDBusMessage::createMethodCall(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Text"), QLatin1String("RemoveSelection"));
        m.setArguments(QVariantList() << k);
        QDBusReply<bool> r = conn.connection().call(m);
        if (!r.isValid()) {
            qWarning() << "Failed call text.RemoveSelection." << r.error().message();
            continue;
        }
    }
    int addSel = qMax(0, selections.count() - count);
    for(int i = 0, k = count; i < addSel; ++i, ++k) {
        Q_ASSERT(k < selections.count());
        QPair<int,int> p = selections[k];
        QDBusMessage m = QDBusMessage::createMethodCall(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Text"), QLatin1String("AddSelection"));
        m.setArguments(QVariantList() << p.first << p.second);
        QDBusReply<bool> r = conn.connection().call(m);
        if (!r.isValid()) {
            qWarning() << "Failed call text.AddSelection." << r.error().message();
            continue;
        }
    }
}

QString RegistryPrivate::text(const AccessibleObject &object, int startOffset, int endOffset) const
{
    QDBusMessage message = QDBusMessage::createMethodCall(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Text"), QLatin1String("GetText"));
    message.setArguments(QVariantList() << startOffset << endOffset);
    QDBusReply<QString> reply = conn.connection().call(message);
    if (!reply.isValid()) {
        qWarning() << "Could not access text." << reply.error().message();
        return QString();
    }
    return reply.value();
}

QString RegistryPrivate::textWithBoundary(const AccessibleObject &object, int offset, AccessibleObject::TextBoundary boundary, int *startOffset, int *endOffset) const
{
    QDBusMessage message = QDBusMessage::createMethodCall(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Text"), QLatin1String("GetTextAtOffset"));
    message.setArguments(QVariantList() << offset << (AtspiTextBoundaryType) boundary);
    QDBusMessage reply = conn.connection().call(message);
    if (reply.type() != QDBusMessage::ReplyMessage || reply.signature() != QStringLiteral("sii")) {
        qWarning() << "Could not access text." << reply.errorMessage();
        if (startOffset)
            *startOffset = 0;
        if (endOffset)
            *endOffset = 0;
        return QString();
    }
    if (startOffset)
        *startOffset = reply.arguments().at(1).toInt();
    if (endOffset)
        *endOffset = reply.arguments().at(2).toInt();
    return reply.arguments().first().toString();;
}

bool RegistryPrivate::setText(const AccessibleObject &object, const QString &text)
{
    QDBusMessage message = QDBusMessage::createMethodCall(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.EditableText"), QLatin1String("SetTextContents"));
    message.setArguments(QVariantList() << text);
    QDBusReply<bool> reply = conn.connection().call(message);
    if (!reply.isValid()) {
        qWarning() << "Could not set text." << reply.error().message();
        return false;
    }
    return reply.value();
}

bool RegistryPrivate::insertText(const AccessibleObject &object, const QString &text, int position, int length)
{
    QDBusMessage message = QDBusMessage::createMethodCall(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.EditableText"), QLatin1String("InsertText"));
    message.setArguments(QVariantList() << position << text << length);
    QDBusReply<bool> reply = conn.connection().call(message);
    if (!reply.isValid()) {
        qWarning() << "Could not insert text." << reply.error().message();
        return false;
    }
    return reply.value();
}

bool RegistryPrivate::copyText(const AccessibleObject &object, int startPos, int endPos)
{
    QDBusMessage message = QDBusMessage::createMethodCall(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.EditableText"), QLatin1String("CopyText"));
    message.setArguments(QVariantList() << startPos << endPos);
    conn.connection().call(message);
    return true;
}

bool RegistryPrivate::cutText(const AccessibleObject &object, int startPos, int endPos)
{
    QDBusMessage message = QDBusMessage::createMethodCall(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.EditableText"), QLatin1String("CutText"));
    message.setArguments(QVariantList() << startPos << endPos);
    QDBusReply<bool> reply = conn.connection().call(message);
    if (!reply.isValid()) {
        qWarning() << "Could not cut text." << reply.error().message();
        return false;
    }
    return reply.value();
}

bool RegistryPrivate::deleteText(const AccessibleObject &object, int startPos, int endPos)
{
    QDBusMessage message = QDBusMessage::createMethodCall(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.EditableText"), QLatin1String("DeleteText"));
    message.setArguments(QVariantList() << startPos << endPos);
    QDBusReply<bool> reply = conn.connection().call(message);
    if (!reply.isValid()) {
        qWarning() << "Could not delete text." << reply.error().message();
        return false;
    }
    return reply.value();
}

bool RegistryPrivate::pasteText(const AccessibleObject &object, int position)
{
    QDBusMessage message = QDBusMessage::createMethodCall(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.EditableText"), QLatin1String("PasteText"));
    message.setArguments(QVariantList() << position);
    QDBusReply<bool> reply = conn.connection().call(message);
    if (!reply.isValid()) {
        qWarning() << "Could not paste text." << reply.error().message();
        return false;
    }
    return reply.value();
}

AccessibleObject RegistryPrivate::application(const AccessibleObject &object) const
{
    QDBusMessage message = QDBusMessage::createMethodCall(
            object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Accessible"), QLatin1String("GetApplication"));
    QDBusReply<QSpiObjectReference> reply = conn.connection().call(message);
    if (!reply.isValid()) {
        qWarning() << "Could not access application." << reply.error().message();
        return AccessibleObject();
    }
    const QSpiObjectReference child = reply.value();
    return AccessibleObject(const_cast<RegistryPrivate*>(this), child.service, child.path.path());
}

QString RegistryPrivate::appToolkitName(const AccessibleObject &object) const
{
    QVariant v = getProperty(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Application"), QLatin1String("ToolkitName"));
    return v.toString();
}

QString RegistryPrivate::appVersion(const AccessibleObject &object) const
{
    QVariant v = getProperty(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Application"), QLatin1String("Version"));
    return v.toString();
}

int RegistryPrivate::appId(const AccessibleObject &object) const
{
    QVariant v = getProperty(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Application"), QLatin1String("Id"));
    return v.toInt();
}

QString RegistryPrivate::appLocale(const AccessibleObject &object, uint lctype) const
{
    // some apps misbehave and claim to be the service, but on :1.0 we have the atspi service which doesn't reply anything sensible here
    if (object.d->service == QLatin1String(":1.0"))
        return QString();

    QDBusMessage message = QDBusMessage::createMethodCall(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Application"), QLatin1String("GetLocale"));

    QVariantList args;
    args.append(lctype);
    message.setArguments(args);

    QDBusReply<QString> reply = conn.connection().call(message);
    if (!reply.isValid()) {
        qWarning() << "Could not access appLocale." << reply.error().message();
        return QString();
    }
    return reply.value();
}

QString RegistryPrivate::appBusAddress(const AccessibleObject &object) const
{
    QDBusMessage message = QDBusMessage::createMethodCall(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Application"), QLatin1String("GetApplicationBusAddress"));
    QDBusReply<QString> reply = conn.connection().call(message);
    if (!reply.isValid()) {
        qWarning() << Q_FUNC_INFO << "Could not access application bus address. Error: " << reply.error().message() << " in response to: " << message;
        return QString();
    }
    return reply.value();
}

double RegistryPrivate::minimumValue(const AccessibleObject &object) const
{
    QVariant v = getProperty(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Value"), QLatin1String("MinimumValue"));
    return v.toDouble();
}

double RegistryPrivate::maximumValue(const AccessibleObject &object) const
{
    QVariant v = getProperty(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Value"), QLatin1String("MaximumValue"));
    return v.toDouble();
}

double RegistryPrivate::minimumValueIncrement(const AccessibleObject &object) const
{
    QVariant v = getProperty(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Value"), QLatin1String("MinimumIncrement"));
    return v.toDouble();
}

double RegistryPrivate::currentValue(const AccessibleObject &object) const
{
    QVariant v = getProperty(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Value"), QLatin1String("CurrentValue"));
    return v.toDouble();
}

QList<AccessibleObject> RegistryPrivate::selection(const AccessibleObject &object) const
{
    QList<AccessibleObject> result;
    int count = getProperty(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Selection"), QLatin1String("CurrentValue")).toInt();
    for(int i = 0; i < count; ++i) {
        QDBusMessage message = QDBusMessage::createMethodCall(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Selection"), QLatin1String("GetSelectedChild"));
        QDBusReply<QSpiObjectReference> reply = conn.connection().call(message);
        if (!reply.isValid()) {
            qWarning() << "Could not access selection." << reply.error().message();
            return QList<AccessibleObject>();
        }
        const QSpiObjectReference ref = reply.value();
        result.append(AccessibleObject(const_cast<RegistryPrivate*>(this), ref.service, ref.path.path()));
    }
    return result;
}

QString RegistryPrivate::imageDescription(const AccessibleObject &object) const
{
    QDBusMessage message = QDBusMessage::createMethodCall(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Image"), QLatin1String("ImageDescription"));
    QDBusReply<QString> reply = conn.connection().call(message);
    if (!reply.isValid()) {
        qWarning() << "Could not access imageDescription." << reply.error().message();
        return QString();
    }
    return reply.value();
}

QString RegistryPrivate::imageLocale(const AccessibleObject &object) const
{
    QDBusMessage message = QDBusMessage::createMethodCall(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Image"), QLatin1String("ImageLocale"));
    QDBusReply<QString> reply = conn.connection().call(message, QDBus::Block, 500);
    if (!reply.isValid()) {
        qWarning() << "Could not access imageLocale." << reply.error().message();
        return QString();
    }
    return reply.value();
}

QRect RegistryPrivate::imageRect(const AccessibleObject &object) const
{
    QDBusMessage message = QDBusMessage::createMethodCall(object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Image"), QLatin1String("GetImageExtents"));
    QVariantList args;
    quint32 coords = ATSPI_COORD_TYPE_SCREEN;
    args << coords;
    message.setArguments(args);
    QDBusReply<QRect> reply = conn.connection().call(message);
    if (!reply.isValid()) {
        qWarning() << "Could not access imageRect." << reply.error().message();
        return QRect();
    }
    return QRect( reply.value() );
}

QVector< QSharedPointer<QAction> > RegistryPrivate::actions(const AccessibleObject &object)
{
    QDBusMessage message = QDBusMessage::createMethodCall (
                object.d->service, object.d->path, QLatin1String("org.a11y.atspi.Action"), QLatin1String("GetActions"));

    QDBusReply<QSpiActionArray> reply = conn.connection().call(message, QDBus::Block, 500);
    if (!reply.isValid()) {
        qWarning() << "Could not access actions." << reply.error().message();
        return QVector< QSharedPointer<QAction> >();
    }

    QSpiActionArray actionArray = reply.value();
    QVector< QSharedPointer<QAction> > list;
    for(int i = 0; i < actionArray.count(); ++i) {
        const QSpiAction &a = actionArray[i];
        QAction *action = new QAction(0);
        QString id = QString(QLatin1String("%1;%2;%3")).arg(object.d->service).arg(object.d->path).arg(i);
        action->setObjectName(id);
        action->setText(a.name);
        action->setWhatsThis(a.description);
        QKeySequence shortcut(a.keyBinding);
        action->setShortcut(shortcut);
        m_actionMapper.setMapping(action, id);
        connect(action, SIGNAL(triggered()), &m_actionMapper, SLOT(map()));
        list.append(QSharedPointer<QAction>(action));
    }
    return list;
}

void RegistryPrivate::actionTriggered(const QString &action)
{
    QStringList actionParts = action.split(QLatin1Char(';'));
    Q_ASSERT(actionParts.count() == 3);
    QString service = actionParts[0];
    QString path = actionParts[1];
    int index = actionParts[2].toInt();

    QDBusMessage message = QDBusMessage::createMethodCall (
                service, path, QLatin1String("org.a11y.atspi.Action"), QLatin1String("DoAction"));

    QVariantList args;
    args << index;
    message.setArguments(args);

    QDBusReply<bool> reply = conn.connection().call(message, QDBus::Block, 500);
    if (!reply.isValid()) {
        qWarning() << "Could not execute action=" << action << reply.error().message();
        return;
    }

    if (reply.value()) {
        qDebug() << "Successful executed action=" << action;
    } else {
        qWarning() << "Failed to execute action=" << action;
    }
}

QVariant RegistryPrivate::getProperty(const QString &service, const QString &path, const QString &interface, const QString &name) const
{
    QVariantList args;
    args.append(interface);
    args.append(name);

    QDBusMessage message = QDBusMessage::createMethodCall (
                service, path, QLatin1String("org.freedesktop.DBus.Properties"), QLatin1String("Get"));

    message.setArguments(args);
    QDBusMessage reply = conn.connection().call(message, QDBus::Block, 500);
    if (reply.arguments().isEmpty())
        return QVariant();

    QDBusVariant v = reply.arguments().at(0).value<QDBusVariant>();
    return v.variant();
}

AccessibleObject RegistryPrivate::accessibleFromPath(const QString &service, const QString &path) const
{
    return AccessibleObject(const_cast<RegistryPrivate*>(this), service, path);
}

AccessibleObject RegistryPrivate::accessibleFromReference(const QSpiObjectReference &reference) const
{
    return accessibleFromPath(reference.service, reference.path.path());
}

AccessibleObject RegistryPrivate::accessibleFromContext() const
{
    return accessibleFromPath(QDBusContext::message().service(), QDBusContext::message().path());
}

void RegistryPrivate::slotWindowCreate(const QString &state, int detail1, int detail2, const QDBusVariant &/*args*/, const QAccessibleClient::QSpiObjectReference &)
{
    emit q->windowCreated(accessibleFromContext());
}

void RegistryPrivate::slotWindowDestroy(const QString &state, int detail1, int detail2, const QDBusVariant &/*args*/, const QAccessibleClient::QSpiObjectReference &reference)
{
    emit q->windowDestroyed(accessibleFromContext());
}

void RegistryPrivate::slotWindowClose(const QString &state, int detail1, int detail2, const QDBusVariant &/*args*/, const QAccessibleClient::QSpiObjectReference &reference)
{
    emit q->windowClosed(accessibleFromContext());
}

void RegistryPrivate::slotWindowReparent(const QString &state, int detail1, int detail2, const QDBusVariant &/*args*/, const QAccessibleClient::QSpiObjectReference &reference)
{
    emit q->windowReparented(accessibleFromContext());
}

void RegistryPrivate::slotWindowMinimize(const QString &state, int detail1, int detail2, const QDBusVariant &/*args*/, const QAccessibleClient::QSpiObjectReference &reference)
{
    emit q->windowMinimized(accessibleFromContext());
}

void RegistryPrivate::slotWindowMaximize(const QString &state, int detail1, int detail2, const QDBusVariant &/*args*/, const QAccessibleClient::QSpiObjectReference &reference)
{
    emit q->windowMaximized(accessibleFromContext());
}

void RegistryPrivate::slotWindowRestore(const QString &state, int detail1, int detail2, const QDBusVariant &/*args*/, const QAccessibleClient::QSpiObjectReference &reference)
{
    emit q->windowRestored(accessibleFromContext());
}

void RegistryPrivate::slotWindowActivate(const QString &state, int detail1, int detail2, const QDBusVariant &/*args*/, const QAccessibleClient::QSpiObjectReference &reference)
{
    emit q->windowActivated(accessibleFromContext());
}

void RegistryPrivate::slotWindowDeactivate(const QString &state, int detail1, int detail2, const QDBusVariant &/*args*/, const QAccessibleClient::QSpiObjectReference &reference)
{
    emit q->windowDeactivated(accessibleFromContext());
}

void RegistryPrivate::slotWindowDesktopCreate(const QString &state, int detail1, int detail2, const QDBusVariant &/*args*/, const QAccessibleClient::QSpiObjectReference &reference)
{
    emit q->windowDesktopCreated(accessibleFromContext());
}

void RegistryPrivate::slotWindowDesktopDestroy(const QString &state, int detail1, int detail2, const QDBusVariant &/*args*/, const QAccessibleClient::QSpiObjectReference &reference)
{
    emit q->windowDesktopDestroyed(accessibleFromContext());
}

void RegistryPrivate::slotWindowRaise(const QString &state, int detail1, int detail2, const QDBusVariant &/*args*/, const QAccessibleClient::QSpiObjectReference &reference)
{
    emit q->windowRaised(accessibleFromContext());
}

void RegistryPrivate::slotWindowLower(const QString &state, int detail1, int detail2, const QDBusVariant &/*args*/, const QAccessibleClient::QSpiObjectReference &reference)
{
    emit q->windowLowered(accessibleFromContext());
}

void RegistryPrivate::slotWindowMove(const QString &state, int detail1, int detail2, const QDBusVariant &/*args*/, const QAccessibleClient::QSpiObjectReference &reference)
{
    emit q->windowMoved(accessibleFromContext());
}

void RegistryPrivate::slotWindowResize(const QString &state, int detail1, int detail2, const QDBusVariant &/*args*/, const QAccessibleClient::QSpiObjectReference &reference)
{
    emit q->windowResized(accessibleFromContext());
}

void RegistryPrivate::slotWindowShade(const QString &state, int detail1, int detail2, const QDBusVariant &/*args*/, const QAccessibleClient::QSpiObjectReference &reference)
{
    emit q->windowShaded(accessibleFromContext());
}

void RegistryPrivate::slotWindowUnshade(const QString &state, int detail1, int detail2, const QDBusVariant &/*args*/, const QAccessibleClient::QSpiObjectReference &reference)
{
    emit q->windowUnshaded(accessibleFromContext());
}

void RegistryPrivate::slotPropertyChange(const QString &property, int detail1, int detail2, const QDBusVariant &args, const QSpiObjectReference &reference)
{
#ifdef ATSPI_DEBUG
    qDebug() << Q_FUNC_INFO << property << detail1 << detail2 << args.variant() << reference.path.path();
#endif
    if (property == QLatin1String("accessible-name")) {
        emit q->accessibleNameChanged(accessibleFromContext());
    } else if (property == QLatin1String("accessible-description")) {
        emit q->accessibleDescriptionChanged(accessibleFromContext());
    }
}

void RegistryPrivate::slotStateChanged(const QString &state, int detail1, int detail2, const QDBusVariant &object, const QSpiObjectReference &reference)
{
    //qDebug() << Q_FUNC_INFO << state << detail1 << detail2 << reference.service << reference.path.path() << QDBusContext::message();

    if (state == QLatin1String("defunct") && (detail1 == 1)) {
        QSpiObjectReference removed;
        removed.service = QDBusContext::message().service();
        removed.path = QDBusObjectPath(QDBusContext::message().path());
        removeAccessibleObject(removed);
        return;
    }

    if (state == QLatin1String("focused") && (detail1 == 1) &&
            (q->subscribedEventListeners().testFlag(Registry::Focus))) {
        QAccessibleClient::AccessibleObject accessible = accessibleFromContext();
        emit q->focusChanged(accessible);
    }

    if (q->subscribedEventListeners().testFlag(Registry::StateChanged)) {
        AccessibleObject accessible = accessibleFromContext();
        emit q->stateChanged(accessible, state, detail1 == 1);
    }
}

// void RegistryPrivate::slotLinkSelected(const QString &/*state*/, int /*detail1*/, int /*detail2*/, const QDBusVariant &args, const QAccessibleClient::QSpiObjectReference &reference)
// {
//     emit q->linkSelected(accessibleFromContext());
// }

bool RegistryPrivate::removeAccessibleObject(const QAccessibleClient::AccessibleObject &accessible)
{
    Q_ASSERT(accessible.isValid());
    if (m_cache) {
        const QString id = accessible.id();
        if (m_cache->remove(id)) {
            emit q->removed(accessible);
        }
    } else {
        emit q->removed(accessible);
    }
    if (accessible.d)
        accessible.d->setDefunct();
    return true;
}

bool RegistryPrivate::removeAccessibleObject(const QAccessibleClient::QSpiObjectReference &reference)
{
    QAccessibleClient::AccessibleObject acc = accessibleFromReference(reference);
    if (acc.isValid()) {
        if (removeAccessibleObject(acc))
            return true;
    }
    return false;
}

void RegistryPrivate::slotChildrenChanged(const QString &state, int detail1, int detail2, const QDBusVariant &args, const QAccessibleClient::QSpiObjectReference &reference)
{
//    qDebug() << Q_FUNC_INFO << state << detail1 << detail2 << args.variant() << reference.path.path();
    QAccessibleClient::AccessibleObject parentAccessible = accessibleFromContext();
    if (!parentAccessible.isValid()) {
        qWarning() << Q_FUNC_INFO << "Children change with invalid parent." << reference.path.path();
        return;
    }

    int index = detail1;
    if (state == QLatin1String("add")) {
        emit q->childAdded(parentAccessible, index);
    } else if (state == QLatin1String("remove")) {
        emit q->childRemoved(parentAccessible, index);
    } else {
        qWarning() << "Invalid state in ChildrenChanged." << state;
    }
}

void RegistryPrivate::slotVisibleDataChanged(const QString &/*state*/, int /*detail1*/, int /*detail2*/, const QDBusVariant &args, const QAccessibleClient::QSpiObjectReference &reference)
{
    emit q->visibleDataChanged(accessibleFromContext());
}

void RegistryPrivate::slotSelectionChanged(const QString &/*state*/, int /*detail1*/, int /*detail2*/, const QDBusVariant &args, const QAccessibleClient::QSpiObjectReference &reference)
{
    emit q->selectionChanged(accessibleFromContext());
}

void RegistryPrivate::slotModelChanged(const QString &/*state*/, int /*detail1*/, int /*detail2*/, const QDBusVariant &args, const QAccessibleClient::QSpiObjectReference &reference)
{
    emit q->modelChanged(accessibleFromContext());
}

void RegistryPrivate::slotTextCaretMoved(const QString &/*state*/, int detail1, int /*detail2*/, const QDBusVariant &/*args*/, const QSpiObjectReference &reference)
{
    emit q->textCaretMoved(accessibleFromContext(), detail1);
}

void RegistryPrivate::slotTextSelectionChanged(const QString &/*state*/, int /*detail1*/, int /*detail2*/, const QDBusVariant &/*args*/, const QSpiObjectReference &reference)
{
    emit q->textSelectionChanged(accessibleFromContext());
}

void RegistryPrivate::slotTextChanged(const QString &change, int start, int end, const QDBusVariant &textVariant, const QSpiObjectReference &reference)
{
    AccessibleObject object(accessibleFromContext());
    QString text = textVariant.variant().toString();

    if (change == QLatin1String("insert")) {
        emit q->textInserted(object, text, start, end);
    } else if (change == QLatin1String("remove")) {
        emit q->textRemoved(object, text, start, end);
    } else {
        emit q->textChanged(object, text, start, end);
    }
}

#include "registry_p.moc"
