dist/changes-5.5.0


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Qt 5.5 introduces many new features and improvements as well as bugfixes
over the 5.4.x series. For more details, refer to the online documentation
included in this distribution. The documentation is also available online:

  http://doc.qt.io/qt-5/index.html

The Qt version 5.5 series is binary compatible with the 5.4.x series.
Applications compiled for 5.4 will continue to run with 5.5.

Some of the changes listed in this file include issue tracking numbers
corresponding to tasks in the Qt Bug Tracker:

  https://bugreports.qt.io/

Each of these identifiers can be entered in the bug tracker to obtain more
information about a particular change.

****************************************************************************
*                           General                                        *
****************************************************************************

 - Fixed several instances of missing, incorrect or obsolete information.
 - Updated platform-specific documentation for embedded Linux, Windows,
   WinRT, Android, and QNX.
 - Updated getting started information and added a topic for getting
   started with Qt Quick Controls.
 - Added documentation and links for the new modules on Qt 5.5
 - Marked Qt WebKit, Qt Declarative (Qt Quick 1) and Qt Script modules
   deprecated.
 - Improved documentation on porting from Qt 4 to Qt 5.
 - Updated license documentation for 3rd party libraries.
/****************************************************************************
**
** Copyright (C) 2012 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.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 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 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/


#ifndef ATSPIADAPTOR_H
#define ATSPIADAPTOR_H

#include <atspi/atspi-constants.h>

#include <QtCore/qsharedpointer.h>
#include <QtDBus/qdbusvirtualobject.h>
#include <QtGui/qaccessible.h>
#include <QtGui/qaccessible2.h>

#include "dbusconnection_p.h"
#include "struct_marshallers_p.h"

QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE

class QAccessibleInterface;
class QSpiAccessibleInterface;
class QSpiApplicationAdaptor;

typedef QSharedPointer<QAccessibleInterface> QAIPointer;

class AtSpiAdaptor :public QDBusVirtualObject
{
    Q_OBJECT

public:
    explicit AtSpiAdaptor(DBusConnection *connection, QObject *parent = 0);
    ~AtSpiAdaptor();

    void registerApplication();
    QString introspect(const QString &path) const;
    bool handleMessage(const QDBusMessage &message, const QDBusConnection &connection);
    void notify(QAccessibleEvent *event);

    void setInitialized(bool init);

public Q_SLOTS:
    void eventListenerRegistered(const QString &bus, const QString &path);
    void eventListenerDeregistered(const QString &bus, const QString &path);
    void windowActivated(QObject* window, bool active);

private:
    void updateEventListeners();
    void setBitFlag(const QString &flag);

    // sending messages
    QVariantList packDBusSignalArguments(const QString &type, int data1, int data2, const QVariant &variantData) const;
    bool sendDBusSignal(const QString &path, const QString &interface, const QString &name, const QVariantList &arguments) const;
    QVariant variantForPath(const QString &path) const;

    void sendFocusChanged(const QAIPointer &interface) const;
    void notifyAboutCreation(const QAIPointer &interface) const;
    void notifyAboutDestruction(const QAIPointer &interface) const;

    // handlers for the different accessible interfaces
    bool applicationInterface(const QAIPointer &interface, const QString &function, const QDBusMessage &message, const QDBusConnection &connection);
    bool accessibleInterface(const QAIPointer &interface, const QString &function, const QDBusMessage &message, const QDBusConnection &connection);
    bool componentInterface(const QAIPointer &interface, const QString &function, const QDBusMessage &message, const QDBusConnection &connection);
    bool actionInterface(const QAIPointer &interface, const QString &function, const QDBusMessage &message, const QDBusConnection &connection);
    bool textInterface(const QAIPointer &interface, const QString &function, const QDBusMessage &message, const QDBusConnection &connection);
    bool editableTextInterface(const QAIPointer &interface, const QString &function, const QDBusMessage &message, const QDBusConnection &connection);
    bool valueInterface(const QAIPointer &interface, const QString &function, const QDBusMessage &message, const QDBusConnection &connection);
    bool tableInterface(const QAIPointer &interface, const QString &function, const QDBusMessage &message, const QDBusConnection &connection);

    void sendReply(const QDBusConnection &connection, const QDBusMessage &message, const QVariant &argument) const;

    QAIPointer interfaceFromPath(const QString& dbusPath) const;
    QString pathForInterface(const QAIPointer &interface, bool inDestructor = false) const;
    QString pathForObject(QObject *object) const;

    void notifyStateChange(const QAIPointer& interface, const QString& state, int value);

    // accessible helper functions
    AtspiRole getRole(const QAIPointer &interface) const;
    QSpiRelationArray relationSet(const QAIPointer &interface, const QDBusConnection &connection) const;
    QStringList accessibleInterfaces(const QAIPointer &interface) const;

    // component helper functions
    static QRect getExtents(const QAIPointer &interface, uint coordType);
    static QRect translateRectToWindowCoordinates(const QAIPointer &interface, const QRect &rect);

    // action helper functions
    QSpiActionArray getActions(QAccessibleActionInterface* interface) const;

    // text helper functions
    QVariantList getAttributes(const QAIPointer &, int offset, bool includeDefaults) const;
    QVariantList getAttributeValue(const QAIPointer &, int offset, const QString &attributeName) const;
    QRect getCharacterExtents(const QAIPointer &, int offset, uint coordType) const;
    QRect getRangeExtents(const QAIPointer &, int startOffset, int endOffset, uint coordType) const;
    QAccessible2::BoundaryType qAccessibleBoundaryType(int atspiTextBoundaryType) const;
    static bool inheritsQAction(QObject *object);

    // private vars
    QSpiObjectReference accessibilityRegistry;
    DBusConnection *m_dbus;
    QSpiApplicationAdaptor *m_applicationAdaptor;

    /// Assigned from the accessibility registry.
    int m_applicationId;
    bool initialized;

    mutable QHash<quintptr, QPointer<QObject> > m_handledObjects;

    // Bit fields - which updates to send

    // AT-SPI has some events that we do not care about:
    // document
    // document-load-complete
    // document-load-stopped
    // document-reload
    uint sendFocus : 1;
    // mouse abs/rel/button

    // all of object
    uint sendObject : 1;
    uint sendObject_active_descendant_changed : 1;
    uint sendObject_attributes_changed : 1;
    uint sendObject_bounds_changed : 1;
    uint sendObject_children_changed : 1;
//    uint sendObject_children_changed_add : 1;
//    uint sendObject_children_changed_remove : 1;
    uint sendObject_column_deleted : 1;
    uint sendObject_column_inserted : 1;
    uint sendObject_column_reordered : 1;
    uint sendObject_link_selected : 1;
    uint sendObject_model_changed : 1;
    uint sendObject_property_change : 1;
    uint sendObject_property_change_accessible_description : 1;
    uint sendObject_property_change_accessible_name : 1;
    uint sendObject_property_change_accessible_parent : 1;
    uint sendObject_property_change_accessible_role : 1;
    uint sendObject_property_change_accessible_table_caption : 1;
    uint sendObject_property_change_accessible_table_column_description : 1;
    uint sendObject_property_change_accessible_table_column_header : 1;
    uint sendObject_property_change_accessible_table_row_description : 1;
    uint sendObject_property_change_accessible_table_row_header : 1;
    uint sendObject_property_change_accessible_table_summary : 1;
    uint sendObject_property_change_accessible_value : 1;
    uint sendObject_row_deleted : 1;
    uint sendObject_row_inserted : 1;
    uint sendObject_row_reordered : 1;
    uint sendObject_selection_changed : 1;
    uint sendObject_state_changed : 1;
    uint sendObject_text_attributes_changed : 1;
    uint sendObject_text_bounds_changed : 1;
    uint sendObject_text_caret_moved : 1;
    uint sendObject_text_changed : 1;
//    uint sendObject_text_changed_delete : 1;
//    uint sendObject_text_changed_insert : 1;
    uint sendObject_text_selection_changed : 1;
    uint sendObject_value_changed : 1;
    uint sendObject_visible_data_changed : 1;

    // we don't implement terminal
    // terminal-application_changed/charwidth_changed/columncount_changed/line_changed/linecount_changed
    uint sendWindow : 1;
    uint sendWindow_activate : 1;
    uint sendWindow_close: 1;
    uint sendWindow_create : 1;
    uint sendWindow_deactivate : 1;
//    uint sendWindow_desktop_create : 1;
//    uint sendWindow_desktop_destroy : 1;
    uint sendWindow_lower : 1;
    uint sendWindow_maximize : 1;
    uint sendWindow_minimize : 1;
    uint sendWindow_move : 1;
    uint sendWindow_raise : 1;
    uint sendWindow_reparent : 1;
    uint sendWindow_resize : 1;
    uint sendWindow_restore : 1;
    uint sendWindow_restyle : 1;
    uint sendWindow_shade : 1;
    uint sendWindow_unshade : 1;
};

QT_END_NAMESPACE
QT_END_HEADER

#endif