--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gui/accessible/qaccessible_mac.mm Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,2474 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qaccessible.h"
+
+#ifndef QT_NO_ACCESSIBILITY
+#include "qaccessible_mac_p.h"
+#include "qhash.h"
+#include "qset.h"
+#include "qpointer.h"
+#include "qapplication.h"
+#include "qmainwindow.h"
+#include "qtextdocument.h"
+#include "qdebug.h"
+#include "qabstractslider.h"
+#include "qsplitter.h"
+#include "qtabwidget.h"
+#include "qlistview.h"
+#include "qtableview.h"
+#include "qdockwidget.h"
+
+#include <private/qt_mac_p.h>
+#include <private/qwidget_p.h>
+#include <CoreFoundation/CoreFoundation.h>
+
+QT_BEGIN_NAMESPACE
+
+/*
+ Set up platform defines. There is a one-to-one correspondence between the
+ Carbon and Cocoa roles and attributes, but the prefix and type changes.
+*/
+#ifdef QT_MAC_USE_COCOA
+typedef NSString * const QAXRoleType;
+#define QAXApplicationRole NSAccessibilityApplicationRole
+#define QAXButtonRole NSAccessibilityButtonRole
+#define QAXCancelAction NSAccessibilityCancelAction
+#define QAXCheckBoxRole NSAccessibilityCheckBoxRole
+#define QAXChildrenAttribute NSAccessibilityChildrenAttribute
+#define QAXCloseButtonAttribute NSAccessibilityCloseButtonAttribute
+#define QAXCloseButtonAttribute NSAccessibilityCloseButtonAttribute
+#define QAXColumnRole NSAccessibilityColumnRole
+#define QAXConfirmAction NSAccessibilityConfirmAction
+#define QAXContentsAttribute NSAccessibilityContentsAttribute
+#define QAXDecrementAction NSAccessibilityDecrementAction
+#define QAXDecrementArrowSubrole NSAccessibilityDecrementArrowSubrole
+#define QAXDecrementPageSubrole NSAccessibilityDecrementPageSubrole
+#define QAXDescriptionAttribute NSAccessibilityDescriptionAttribute
+#define QAXEnabledAttribute NSAccessibilityEnabledAttribute
+#define QAXExpandedAttribute NSAccessibilityExpandedAttribute
+#define QAXFocusedAttribute NSAccessibilityFocusedAttribute
+#define QAXFocusedUIElementChangedNotification NSAccessibilityFocusedUIElementChangedNotification
+#define QAXFocusedWindowChangedNotification NSAccessibilityFocusedWindowChangedNotification
+#define QAXGroupRole NSAccessibilityGroupRole
+#define QAXGrowAreaAttribute NSAccessibilityGrowAreaAttribute
+#define QAXGrowAreaRole NSAccessibilityGrowAreaRole
+#define QAXHelpAttribute NSAccessibilityHelpAttribute
+#define QAXHorizontalOrientationValue NSAccessibilityHorizontalOrientationValue
+#define QAXHorizontalScrollBarAttribute NSAccessibilityHorizontalScrollBarAttribute
+#define QAXIncrementAction NSAccessibilityIncrementAction
+#define QAXIncrementArrowSubrole NSAccessibilityIncrementArrowSubrole
+#define QAXIncrementPageSubrole NSAccessibilityIncrementPageSubrole
+#define QAXIncrementorRole NSAccessibilityIncrementorRole
+#define QAXLinkedUIElementsAttribute NSAccessibilityLinkedUIElementsAttribute
+#define QAXListRole NSAccessibilityListRole
+#define QAXMainAttribute NSAccessibilityMainAttribute
+#define QAXMaxValueAttribute NSAccessibilityMaxValueAttribute
+#define QAXMenuBarRole NSAccessibilityMenuBarRole
+#define QAXMenuButtonRole NSAccessibilityMenuButtonRole
+#define QAXMenuClosedNotification NSAccessibilityMenuClosedNotification
+#define QAXMenuItemRole NSAccessibilityMenuItemRole
+#define QAXMenuOpenedNotification NSAccessibilityMenuOpenedNotification
+#define QAXMenuRole NSAccessibilityMenuRole
+#define QAXMinValueAttribute NSAccessibilityMinValueAttribute
+#define QAXMinimizeButtonAttribute NSAccessibilityMinimizeButtonAttribute
+#define QAXMinimizedAttribute NSAccessibilityMinimizedAttribute
+#define QAXNextContentsAttribute NSAccessibilityNextContentsAttribute
+#define QAXOrientationAttribute NSAccessibilityOrientationAttribute
+#define QAXParentAttribute NSAccessibilityParentAttribute
+#define QAXPickAction NSAccessibilityPickAction
+#define QAXPopUpButtonRole NSAccessibilityPopUpButtonRole
+#define QAXPositionAttribute NSAccessibilityPositionAttribute
+#define QAXPressAction NSAccessibilityPressAction
+#define QAXPreviousContentsAttribute NSAccessibilityPreviousContentsAttribute
+#define QAXProgressIndicatorRole NSAccessibilityProgressIndicatorRole
+#define QAXRadioButtonRole NSAccessibilityRadioButtonRole
+#define QAXRoleAttribute NSAccessibilityRoleAttribute
+#define QAXRoleDescriptionAttribute NSAccessibilityRoleDescriptionAttribute
+#define QAXRowRole NSAccessibilityRowRole
+#define QAXRowsAttribute NSAccessibilityRowsAttribute
+#define QAXScrollAreaRole NSAccessibilityScrollAreaRole
+#define QAXScrollBarRole NSAccessibilityScrollBarRole
+#define QAXSelectedAttribute NSAccessibilitySelectedAttribute
+#define QAXSelectedChildrenAttribute NSAccessibilitySelectedChildrenAttribute
+#define QAXSelectedRowsAttribute NSAccessibilitySelectedRowsAttribute
+#define QAXSizeAttribute NSAccessibilitySizeAttribute
+#define QAXSliderRole NSAccessibilitySliderRole
+#define QAXSplitGroupRole NSAccessibilitySplitGroupRole
+#define QAXSplitterRole NSAccessibilitySplitterRole
+#define QAXSplittersAttribute NSAccessibilitySplittersAttribute
+#define QAXStaticTextRole NSAccessibilityStaticTextRole
+#define QAXSubroleAttribute NSAccessibilitySubroleAttribute
+#define QAXSubroleAttribute NSAccessibilitySubroleAttribute
+#define QAXTabGroupRole NSAccessibilityTabGroupRole
+#define QAXTableRole NSAccessibilityTableRole
+#define QAXTabsAttribute NSAccessibilityTabsAttribute
+#define QAXTextFieldRole NSAccessibilityTextFieldRole
+#define QAXTitleAttribute NSAccessibilityTitleAttribute
+#define QAXTitleUIElementAttribute NSAccessibilityTitleUIElementAttribute
+#define QAXToolbarButtonAttribute NSAccessibilityToolbarButtonAttribute
+#define QAXToolbarRole NSAccessibilityToolbarRole
+#define QAXTopLevelUIElementAttribute NSAccessibilityTopLevelUIElementAttribute
+#define QAXUnknownRole NSAccessibilityUnknownRole
+#define QAXValueAttribute NSAccessibilityValueAttribute
+#define QAXValueChangedNotification NSAccessibilityValueChangedNotification
+#define QAXValueIndicatorRole NSAccessibilityValueIndicatorRole
+#define QAXVerticalOrientationValue NSAccessibilityVerticalOrientationValue
+#define QAXVerticalScrollBarAttribute NSAccessibilityVerticalScrollBarAttribute
+#define QAXVisibleRowsAttribute NSAccessibilityVisibleRowsAttribute
+#define QAXWindowAttribute NSAccessibilityWindowAttribute
+#define QAXWindowCreatedNotification NSAccessibilityWindowCreatedNotification
+#define QAXWindowMovedNotification NSAccessibilityWindowMovedNotification
+#define QAXWindowRole NSAccessibilityWindowRole
+#define QAXZoomButtonAttribute NSAccessibilityZoomButtonAttribute
+#else
+typedef CFStringRef const QAXRoleType;
+#define QAXApplicationRole kAXApplicationRole
+#define QAXButtonRole kAXButtonRole
+#define QAXCancelAction kAXCancelAction
+#define QAXCheckBoxRole kAXCheckBoxRole
+#define QAXChildrenAttribute kAXChildrenAttribute
+#define QAXCloseButtonAttribute kAXCloseButtonAttribute
+#define QAXColumnRole kAXColumnRole
+#define QAXConfirmAction kAXConfirmAction
+#define QAXContentsAttribute kAXContentsAttribute
+#define QAXDecrementAction kAXDecrementAction
+#define QAXDecrementArrowSubrole kAXDecrementArrowSubrole
+#define QAXDecrementPageSubrole kAXDecrementPageSubrole
+#define QAXDescriptionAttribute kAXDescriptionAttribute
+#define QAXEnabledAttribute kAXEnabledAttribute
+#define QAXExpandedAttribute kAXExpandedAttribute
+#define QAXFocusedAttribute kAXFocusedAttribute
+#define QAXFocusedUIElementChangedNotification kAXFocusedUIElementChangedNotification
+#define QAXFocusedWindowChangedNotification kAXFocusedWindowChangedNotification
+#define QAXGroupRole kAXGroupRole
+#define QAXGrowAreaAttribute kAXGrowAreaAttribute
+#define QAXGrowAreaRole kAXGrowAreaRole
+#define QAXHelpAttribute kAXHelpAttribute
+#define QAXHorizontalOrientationValue kAXHorizontalOrientationValue
+#define QAXHorizontalScrollBarAttribute kAXHorizontalScrollBarAttribute
+#define QAXIncrementAction kAXIncrementAction
+#define QAXIncrementArrowSubrole kAXIncrementArrowSubrole
+#define QAXIncrementPageSubrole kAXIncrementPageSubrole
+#define QAXIncrementorRole kAXIncrementorRole
+#define QAXLinkedUIElementsAttribute kAXLinkedUIElementsAttribute
+#define QAXListRole kAXListRole
+#define QAXMainAttribute kAXMainAttribute
+#define QAXMaxValueAttribute kAXMaxValueAttribute
+#define QAXMenuBarRole kAXMenuBarRole
+#define QAXMenuButtonRole kAXMenuButtonRole
+#define QAXMenuClosedNotification kAXMenuClosedNotification
+#define QAXMenuItemRole kAXMenuItemRole
+#define QAXMenuOpenedNotification kAXMenuOpenedNotification
+#define QAXMenuRole kAXMenuRole
+#define QAXMinValueAttribute kAXMinValueAttribute
+#define QAXMinimizeButtonAttribute kAXMinimizeButtonAttribute
+#define QAXMinimizedAttribute kAXMinimizedAttribute
+#define QAXNextContentsAttribute kAXNextContentsAttribute
+#define QAXOrientationAttribute kAXOrientationAttribute
+#define QAXParentAttribute kAXParentAttribute
+#define QAXPickAction kAXPickAction
+#define QAXPopUpButtonRole kAXPopUpButtonRole
+#define QAXPositionAttribute kAXPositionAttribute
+#define QAXPressAction kAXPressAction
+#define QAXPreviousContentsAttribute kAXPreviousContentsAttribute
+#define QAXProgressIndicatorRole kAXProgressIndicatorRole
+#define QAXRadioButtonRole kAXRadioButtonRole
+#define QAXRoleAttribute kAXRoleAttribute
+#define QAXRoleDescriptionAttribute kAXRoleDescriptionAttribute
+#define QAXRowRole kAXRowRole
+#define QAXRowsAttribute kAXRowsAttribute
+#define QAXScrollAreaRole kAXScrollAreaRole
+#define QAXScrollBarRole kAXScrollBarRole
+#define QAXSelectedAttribute kAXSelectedAttribute
+#define QAXSelectedChildrenAttribute kAXSelectedChildrenAttribute
+#define QAXSelectedRowsAttribute kAXSelectedRowsAttribute
+#define QAXSizeAttribute kAXSizeAttribute
+#define QAXSliderRole kAXSliderRole
+#define QAXSplitGroupRole kAXSplitGroupRole
+#define QAXSplitterRole kAXSplitterRole
+#define QAXSplittersAttribute kAXSplittersAttribute
+#define QAXStaticTextRole kAXStaticTextRole
+#define QAXSubroleAttribute kAXSubroleAttribute
+#define QAXTabGroupRole kAXTabGroupRole
+#define QAXTableRole kAXTableRole
+#define QAXTabsAttribute kAXTabsAttribute
+#define QAXTextFieldRole kAXTextFieldRole
+#define QAXTitleAttribute kAXTitleAttribute
+#define QAXTitleUIElementAttribute kAXTitleUIElementAttribute
+#define QAXToolbarButtonAttribute kAXToolbarButtonAttribute
+#define QAXToolbarRole kAXToolbarRole
+#define QAXTopLevelUIElementAttribute kAXTopLevelUIElementAttribute
+#define QAXUnknownRole kAXUnknownRole
+#define QAXValueAttribute kAXValueAttribute
+#define QAXValueChangedNotification kAXValueChangedNotification
+#define QAXValueIndicatorRole kAXValueIndicatorRole
+#define QAXVerticalOrientationValue kAXVerticalOrientationValue
+#define QAXVerticalScrollBarAttribute kAXVerticalScrollBarAttribute
+#define QAXVisibleRowsAttribute kAXVisibleRowsAttribute
+#define QAXWindowAttribute kAXWindowAttribute
+#define QAXWindowCreatedNotification kAXWindowCreatedNotification
+#define QAXWindowMovedNotification kAXWindowMovedNotification
+#define QAXWindowRole kAXWindowRole
+#define QAXZoomButtonAttribute kAXZoomButtonAttribute
+#endif
+
+
+/*****************************************************************************
+ Externals
+ *****************************************************************************/
+extern bool qt_mac_is_macsheet(const QWidget *w); //qwidget_mac.cpp
+extern bool qt_mac_is_macdrawer(const QWidget *w); //qwidget_mac.cpp
+
+/*****************************************************************************
+ QAccessible Bindings
+ *****************************************************************************/
+//hardcoded bindings between control info and (known) QWidgets
+struct QAccessibleTextBinding {
+ int qt;
+ QAXRoleType mac;
+ bool settable;
+} text_bindings[][10] = {
+ { { QAccessible::MenuItem, QAXMenuItemRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::MenuBar, QAXMenuBarRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::ScrollBar, QAXScrollBarRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::Grip, QAXGrowAreaRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::Window, QAXWindowRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::Dialog, QAXWindowRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::AlertMessage, QAXWindowRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::ToolTip, QAXWindowRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::HelpBalloon, QAXWindowRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::PopupMenu, QAXMenuRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::Application, QAXApplicationRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::Pane, QAXGroupRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::Grouping, QAXGroupRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::Separator, QAXSplitterRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::ToolBar, QAXToolbarRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::PageTab, QAXRadioButtonRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::ButtonMenu, QAXMenuButtonRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::ButtonDropDown, QAXPopUpButtonRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::SpinBox, QAXIncrementorRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::Slider, QAXSliderRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::ProgressBar, QAXProgressIndicatorRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::ComboBox, QAXPopUpButtonRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::RadioButton, QAXRadioButtonRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::CheckBox, QAXCheckBoxRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::StaticText, QAXStaticTextRole, false },
+ { QAccessible::Name, QAXValueAttribute, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::Table, QAXTableRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::StatusBar, QAXStaticTextRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::Column, QAXColumnRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::ColumnHeader, QAXColumnRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::Row, QAXRowRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::RowHeader, QAXRowRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::Cell, QAXTextFieldRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::PushButton, QAXButtonRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::EditableText, QAXTextFieldRole, true },
+ { -1, 0, false }
+ },
+ { { QAccessible::Link, QAXTextFieldRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::Indicator, QAXValueIndicatorRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::Splitter, QAXSplitGroupRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::List, QAXListRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::ListItem, QAXStaticTextRole, false },
+ { -1, 0, false }
+ },
+ { { QAccessible::Cell, QAXStaticTextRole, false },
+ { -1, 0, false }
+ },
+ { { -1, 0, false } }
+};
+
+class QAInterface;
+static CFStringRef macRole(const QAInterface &interface);
+
+QDebug operator<<(QDebug debug, const QAInterface &interface)
+{
+ if (interface.isValid() == false)
+ debug << "invalid interface";
+ else
+ debug << interface.object() << "id" << interface.id() << "role" << hex << interface.role();
+ return debug;
+}
+
+// The root of the Qt accessible hiearchy.
+static QObject *rootObject = 0;
+
+
+bool QAInterface::operator==(const QAInterface &other) const
+{
+ if (isValid() == false || other.isValid() == false)
+ return (isValid() && other.isValid());
+
+ // walk up the parent chain, comparing child indexes, until we reach
+ // an interface that has a QObject.
+ QAInterface currentThis = *this;
+ QAInterface currentOther = other;
+
+ while (currentThis.object() == 0) {
+ if (currentOther.object() != 0)
+ return false;
+
+ // fail if the child indexes in the two hirearchies don't match.
+ if (currentThis.parent().indexOfChild(currentThis) !=
+ currentOther.parent().indexOfChild(currentOther))
+ return false;
+
+ currentThis = currentThis.parent();
+ currentOther = currentOther.parent();
+ }
+
+ return (currentThis.object() == currentOther.object() && currentThis.id() == currentOther.id());
+}
+
+bool QAInterface::operator!=(const QAInterface &other) const
+{
+ return !operator==(other);
+}
+
+uint qHash(const QAInterface &item)
+{
+ if (item.isValid())
+ return qHash(item.object()) + qHash(item.id());
+ else
+ return qHash(item.cachedObject()) + qHash(item.id());
+}
+
+QAInterface QAInterface::navigate(RelationFlag relation, int entry) const
+{
+ if (!checkValid())
+ return QAInterface();
+
+ // On a QAccessibleInterface that handles its own children we can short-circut
+ // the navigation if this QAInterface refers to one of the children:
+ if (child != 0) {
+ // The Ancestor interface will always be the same QAccessibleInterface with
+ // a child value of 0.
+ if (relation == QAccessible::Ancestor)
+ return QAInterface(*this, 0);
+
+ // The child hiearchy is only one level deep, so navigating to a child
+ // of a child is not possible.
+ if (relation == QAccessible::Child) {
+ return QAInterface();
+ }
+ }
+ QAccessibleInterface *child_iface = 0;
+
+ const int status = base.interface->navigate(relation, entry, &child_iface);
+
+ if (status == -1)
+ return QAInterface(); // not found;
+
+ // Check if target is a child of this interface.
+ if (!child_iface) {
+ return QAInterface(*this, status);
+ } else {
+ // Target is child_iface or a child of that (status decides).
+ return QAInterface(child_iface, status);
+ }
+}
+
+QAElement::QAElement()
+:elementRef(0)
+{}
+
+QAElement::QAElement(AXUIElementRef elementRef)
+:elementRef(elementRef)
+{
+ if (elementRef != 0) {
+ CFRetain(elementRef);
+ CFRetain(object());
+ }
+}
+
+QAElement::QAElement(const QAElement &element)
+:elementRef(element.elementRef)
+{
+ if (elementRef != 0) {
+ CFRetain(elementRef);
+ CFRetain(object());
+ }
+}
+
+QAElement::QAElement(HIObjectRef object, int child)
+ :elementRef(
+#ifndef QT_MAC_USE_COCOA
+ AXUIElementCreateWithHIObjectAndIdentifier(object, child)
+#endif
+)
+{
+#ifndef QT_MAC_USE_COCOA
+ if (object == 0) {
+ elementRef = 0; // Create invalid QAElement.
+ } else {
+ elementRef = AXUIElementCreateWithHIObjectAndIdentifier(object, child);
+ CFRetain(object);
+ }
+#else
+ Q_UNUSED(object);
+ Q_UNUSED(child);
+#endif
+}
+
+QAElement::~QAElement()
+{
+ if (elementRef != 0) {
+ CFRelease(object());
+ CFRelease(elementRef);
+ }
+}
+
+void QAElement::operator=(const QAElement &other)
+{
+ if (*this == other)
+ return;
+
+ if (elementRef != 0) {
+ CFRelease(object());
+ CFRelease(elementRef);
+ }
+
+ elementRef = other.elementRef;
+
+ if (elementRef != 0) {
+ CFRetain(elementRef);
+ CFRetain(object());
+ }
+}
+
+bool QAElement::operator==(const QAElement &other) const
+{
+ if (elementRef == 0 || other.elementRef == 0)
+ return (elementRef == other.elementRef);
+
+ return CFEqual(elementRef, other.elementRef);
+}
+
+uint qHash(QAElement element)
+{
+ return qHash(element.object()) + qHash(element.id());
+}
+
+#ifndef QT_MAC_USE_COCOA
+static QInterfaceFactory *createFactory(const QAInterface &interface);
+#endif
+Q_GLOBAL_STATIC(QAccessibleHierarchyManager, accessibleHierarchyManager);
+
+/*
+ Reomves all accessibility info accosiated with the sender object.
+*/
+void QAccessibleHierarchyManager::objectDestroyed(QObject *object)
+{
+ HIObjectRef hiObject = qobjectHiobjectHash.value(object);
+ delete qobjectElementHash.value(object);
+ qobjectElementHash.remove(object);
+ hiobjectInterfaceHash.remove(hiObject);
+}
+
+/*
+ Removes all stored items.
+*/
+void QAccessibleHierarchyManager::reset()
+{
+ qDeleteAll(qobjectElementHash);
+ qobjectElementHash.clear();
+ hiobjectInterfaceHash.clear();
+ qobjectHiobjectHash.clear();
+}
+
+QAccessibleHierarchyManager *QAccessibleHierarchyManager::instance()
+{
+ return accessibleHierarchyManager();
+}
+
+#ifndef QT_MAC_USE_COCOA
+static bool isItemView(const QAInterface &interface)
+{
+ QObject *object = interface.object();
+ return (interface.role() == QAccessible::List || interface.role() == QAccessible::Table
+ || (object && qobject_cast<QAbstractItemView *>(interface.object()))
+ || (object && object->objectName() == QLatin1String("qt_scrollarea_viewport")
+ && qobject_cast<QAbstractItemView *>(object->parent())));
+}
+#endif
+
+static bool isTabWidget(const QAInterface &interface)
+{
+ if (QObject *object = interface.object())
+ return (object->inherits("QTabWidget") && interface.id() == 0);
+ return false;
+}
+
+static bool isStandaloneTabBar(const QAInterface &interface)
+{
+ QObject *object = interface.object();
+ if (interface.role() == QAccessible::PageTabList && object)
+ return (qobject_cast<QTabWidget *>(object->parent()) == 0);
+
+ return false;
+}
+
+static bool isEmbeddedTabBar(const QAInterface &interface)
+{
+ QObject *object = interface.object();
+ if (interface.role() == QAccessible::PageTabList && object)
+ return (qobject_cast<QTabWidget *>(object->parent()));
+
+ return false;
+}
+
+/*
+ Decides if a QAInterface is interesting from an accessibility users point of view.
+*/
+bool isItInteresting(const QAInterface &interface)
+{
+ // Mac accessibility does not have an attribute that corresponds to the Invisible/Offscreen
+ // state, so we disable the interface here.
+ const QAccessible::State state = interface.state();
+ if (state & QAccessible::Invisible ||
+ state & QAccessible::Offscreen )
+ return false;
+
+ const QAccessible::Role role = interface.role();
+
+ if (QObject * const object = interface.object()) {
+ const QString className = QLatin1String(object->metaObject()->className());
+
+ // VoiceOver focusing on tool tips can be confusing. The contents of the
+ // tool tip is avalible through the description attribute anyway, so
+ // we disable accessibility for tool tips.
+ if (className == QLatin1String("QTipLabel"))
+ return false;
+
+ // Hide TabBars that has a QTabWidget parent (the tab widget handles the accessibility)
+ if (isEmbeddedTabBar(interface))
+ return false;
+
+ // Hide docked dockwidgets. ### causes infinitie loop in the apple accessibility code.
+ /* if (QDockWidget *dockWidget = qobject_cast<QDockWidget *>(object)) {
+ if (dockWidget->isFloating() == false)
+ return false;
+ }
+ */
+ }
+
+ // Client is a generic role returned by plain QWidgets or other
+ // widgets that does not have separate QAccessible interface, such
+ // as the TabWidget. Return false unless macRole gives the interface
+ // a special role.
+ if (role == QAccessible::Client && macRole(interface) == CFStringRef(QAXUnknownRole))
+ return false;
+
+ // Some roles are not interesting:
+ if (role == QAccessible::Border || // QFrame
+ role == QAccessible::Application || // We use the system-provided application element.
+ role == QAccessible::MenuItem) // The system also provides the menu items.
+ return false;
+
+ // It is probably better to access the toolbar buttons directly than having
+ // to navigate through the toolbar.
+ if (role == QAccessible::ToolBar)
+ return false;
+
+ return true;
+}
+
+QAElement QAccessibleHierarchyManager::registerInterface(QObject *object, int child)
+{
+#ifndef QT_MAC_USE_COCOA
+ return registerInterface(QAInterface(QAccessible::queryAccessibleInterface(object), child));
+#else
+ Q_UNUSED(object);
+ Q_UNUSED(child);
+ return QAElement();
+#endif
+}
+
+/*
+ Creates a QAXUIelement that corresponds to the given QAInterface.
+*/
+QAElement QAccessibleHierarchyManager::registerInterface(const QAInterface &interface)
+{
+#ifndef QT_MAC_USE_COCOA
+ if (interface.isValid() == false)
+ return QAElement();
+ QAInterface objectInterface = interface.objectInterface();
+
+ QObject * qobject = objectInterface.object();
+ HIObjectRef hiobject = objectInterface.hiObject();
+ if (qobject == 0 || hiobject == 0)
+ return QAElement();
+
+ if (qobjectElementHash.contains(qobject) == false) {
+ registerInterface(qobject, hiobject, createFactory(interface));
+ HIObjectSetAccessibilityIgnored(hiobject, !isItInteresting(interface));
+ }
+
+ return QAElement(hiobject, interface.id());
+#else
+ Q_UNUSED(interface);
+ return QAElement();
+#endif
+}
+
+#ifndef QT_MAC_USE_COCOA
+#include "qaccessible_mac_carbon.cpp"
+#endif
+
+void QAccessibleHierarchyManager::registerInterface(QObject * qobject, HIObjectRef hiobject, QInterfaceFactory *interfaceFactory)
+{
+#ifndef QT_MAC_USE_COCOA
+ if (qobjectElementHash.contains(qobject) == false) {
+ qobjectElementHash.insert(qobject, interfaceFactory);
+ qobjectHiobjectHash.insert(qobject, hiobject);
+ connect(qobject, SIGNAL(destroyed(QObject *)), SLOT(objectDestroyed(QObject *)));
+ }
+
+ if (hiobjectInterfaceHash.contains(hiobject) == false) {
+ hiobjectInterfaceHash.insert(hiobject, interfaceFactory);
+ installAcessibilityEventHandler(hiobject);
+ }
+#else
+ Q_UNUSED(qobject);
+ Q_UNUSED(hiobject);
+ Q_UNUSED(interfaceFactory);
+#endif
+}
+
+void QAccessibleHierarchyManager::registerChildren(const QAInterface &interface)
+{
+ QObject * const object = interface.object();
+ if (object == 0)
+ return;
+
+ QInterfaceFactory *interfaceFactory = qobjectElementHash.value(object);
+
+ if (interfaceFactory == 0)
+ return;
+
+ interfaceFactory->registerChildren();
+}
+
+QAInterface QAccessibleHierarchyManager::lookup(const AXUIElementRef &element)
+{
+ if (element == 0)
+ return QAInterface();
+#ifndef QT_MAC_USE_COCOA
+ HIObjectRef hiObject = AXUIElementGetHIObject(element);
+
+ QInterfaceFactory *factory = hiobjectInterfaceHash.value(hiObject);
+ if (factory == 0) {
+ return QAInterface();
+ }
+
+ UInt64 id;
+ AXUIElementGetIdentifier(element, &id);
+ return factory->interface(id);
+#else
+ return QAInterface();
+#endif;
+}
+
+QAInterface QAccessibleHierarchyManager::lookup(const QAElement &element)
+{
+ return lookup(element.element());
+}
+
+QAElement QAccessibleHierarchyManager::lookup(const QAInterface &interface)
+{
+ if (interface.isValid() == false)
+ return QAElement();
+
+ QInterfaceFactory *factory = qobjectElementHash.value(interface.objectInterface().object());
+ if (factory == 0)
+ return QAElement();
+
+ return factory->element(interface);
+}
+
+QAElement QAccessibleHierarchyManager::lookup(QObject * const object, int id)
+{
+ QInterfaceFactory *factory = qobjectElementHash.value(object);
+ if (factory == 0)
+ return QAElement();
+
+ return factory->element(id);
+}
+
+/*
+ Standard interface mapping, return the stored interface
+ or HIObjectRef, and there is an one-to-one mapping between
+ the identifier and child.
+*/
+class QStandardInterfaceFactory : public QInterfaceFactory
+{
+public:
+ QStandardInterfaceFactory(const QAInterface &interface)
+ : m_interface(interface), object(interface.hiObject())
+ {
+ CFRetain(object);
+ }
+
+ ~QStandardInterfaceFactory()
+ {
+ CFRelease(object);
+ }
+
+
+ QAInterface interface(UInt64 identifier)
+ {
+ const int child = identifier;
+ return QAInterface(m_interface, child);
+ }
+
+ QAElement element(int id)
+ {
+ return QAElement(object, id);
+ }
+
+ QAElement element(const QAInterface &interface)
+ {
+ if (interface.object() == 0)
+ return QAElement();
+ return QAElement(object, interface.id());
+ }
+
+ void registerChildren()
+ {
+ const int childCount = m_interface.childCount();
+ for (int i = 1; i <= childCount; ++i) {
+ accessibleHierarchyManager()->registerInterface(m_interface.navigate(QAccessible::Child, i));
+ }
+ }
+
+private:
+ QAInterface m_interface;
+ HIObjectRef object;
+};
+
+/*
+ Interface mapping where that creates one HIObject for each interface child.
+*/
+class QMultipleHIObjectFactory : public QInterfaceFactory
+{
+public:
+ QMultipleHIObjectFactory(const QAInterface &interface)
+ : m_interface(interface)
+ { }
+
+ ~QMultipleHIObjectFactory()
+ {
+ foreach (HIObjectRef object, objects) {
+ CFRelease(object);
+ }
+ }
+
+ QAInterface interface(UInt64 identifier)
+ {
+ const int child = identifier;
+ return QAInterface(m_interface, child);
+ }
+
+ QAElement element(int child)
+ {
+ if (child == 0)
+ return QAElement(m_interface.hiObject(), 0);
+
+ if (child > objects.count())
+ return QAElement();
+
+ return QAElement(objects.at(child - 1), child);
+ }
+
+ void registerChildren()
+ {
+#ifndef QT_MAC_USE_COCOA
+ const int childCount = m_interface.childCount();
+ for (int i = 1; i <= childCount; ++i) {
+ HIObjectRef hiobject;
+ HIObjectCreate(kObjectQtAccessibility, 0, &hiobject);
+ objects.append(hiobject);
+ accessibleHierarchyManager()->registerInterface(m_interface.object(), hiobject, this);
+ HIObjectSetAccessibilityIgnored(hiobject, !isItInteresting(m_interface.navigate(QAccessible::Child, i)));
+ }
+#endif
+ }
+
+private:
+ QAInterface m_interface;
+ QList<HIObjectRef> objects;
+};
+
+class QItemViewInterfaceFactory : public QInterfaceFactory
+{
+public:
+ QItemViewInterfaceFactory(const QAInterface &interface)
+ : m_interface(interface), object(interface.hiObject())
+ {
+ CFRetain(object);
+ columnCount = 0;
+ if (QTableView * tableView = qobject_cast<QTableView *>(interface.parent().object())) {
+ if (tableView->model())
+ columnCount = tableView->model()->columnCount();
+ if (tableView->verticalHeader())
+ ++columnCount;
+ }
+ }
+
+ ~QItemViewInterfaceFactory()
+ {
+ CFRelease(object);
+ }
+
+ QAInterface interface(UInt64 identifier)
+ {
+ if (identifier == 0)
+ return m_interface;
+
+ if (m_interface.role() == QAccessible::List)
+ return m_interface.childAt(identifier);
+
+ if (m_interface.role() == QAccessible::Table) {
+ const int index = identifier;
+ if (index == 0)
+ return m_interface; // return the item view interface.
+
+ const int rowIndex = (index - 1) / (columnCount + 1);
+ const int cellIndex = (index - 1) % (columnCount + 1);
+/*
+ qDebug() << "index" << index;
+ qDebug() << "rowIndex" << rowIndex;
+ qDebug() << "cellIndex" << cellIndex;
+*/
+ const QAInterface rowInterface = m_interface.childAt(rowIndex + 1);
+
+ if ((cellIndex) == 0) // Is it a row?
+ return rowInterface;
+ else {
+ return rowInterface.childAt(cellIndex);
+ }
+ }
+
+ return QAInterface();
+ }
+
+ QAElement element(int id)
+ {
+ if (id != 0) {
+ return QAElement();
+ }
+ return QAElement(object, 0);
+ }
+
+ QAElement element(const QAInterface &interface)
+ {
+ if (interface.object() && interface.object() == m_interface.object()) {
+ return QAElement(object, 0);
+ } else if (m_interface.role() == QAccessible::List) {
+ if (interface.parent().object() && interface.parent().object() == m_interface.object())
+ return QAElement(object, m_interface.indexOfChild(interface));
+ } else if (m_interface.role() == QAccessible::Table) {
+ QAInterface currentInterface = interface;
+ int index = 0;
+
+ while (currentInterface.isValid() && currentInterface.object() == 0) {
+ const QAInterface parentInterface = currentInterface.parent();
+/*
+ qDebug() << "current index" << index;
+ qDebug() << "current interface" << interface;
+
+ qDebug() << "parent interface" << parentInterface;
+ qDebug() << "grandparent interface" << parentInterface.parent();
+ qDebug() << "childCount" << interface.childCount();
+ qDebug() << "index of child" << parentInterface.indexOfChild(currentInterface);
+*/
+ index += ((parentInterface.indexOfChild(currentInterface) - 1) * (currentInterface.childCount() + 1)) + 1;
+ currentInterface = parentInterface;
+// qDebug() << "new current interface" << currentInterface;
+ }
+ if (currentInterface.object() == m_interface.object())
+ return QAElement(object, index);
+
+
+ }
+ return QAElement();
+ }
+
+ void registerChildren()
+ {
+ // Item view child interfraces don't have their own qobjects, so there is nothing to register here.
+ }
+
+private:
+ QAInterface m_interface;
+ HIObjectRef object;
+ int columnCount; // for table views;
+};
+
+#ifndef QT_MAC_USE_COCOA
+static bool managesChildren(const QAInterface &interface)
+{
+ return (interface.childCount() > 0 && interface.childAt(1).id() > 0);
+}
+
+static QInterfaceFactory *createFactory(const QAInterface &interface)
+{
+ if (isItemView(interface)) {
+ return new QItemViewInterfaceFactory(interface);
+ } if (managesChildren(interface)) {
+ return new QMultipleHIObjectFactory(interface);
+ }
+
+ return new QStandardInterfaceFactory(interface);
+}
+#endif
+
+QList<QAElement> lookup(const QList<QAInterface> &interfaces)
+{
+ QList<QAElement> elements;
+ foreach (const QAInterface &interface, interfaces)
+ if (interface.isValid()) {
+ const QAElement element = accessibleHierarchyManager()->lookup(interface);
+ if (element.isValid())
+ elements.append(element);
+ }
+ return elements;
+}
+
+// Debug output helpers:
+/*
+static QString nameForEventKind(UInt32 kind)
+{
+ switch(kind) {
+ case kEventAccessibleGetChildAtPoint: return QString("GetChildAtPoint"); break;
+ case kEventAccessibleGetAllAttributeNames: return QString("GetAllAttributeNames"); break;
+ case kEventAccessibleGetNamedAttribute: return QString("GetNamedAttribute"); break;
+ case kEventAccessibleSetNamedAttribute: return QString("SetNamedAttribute"); break;
+ case kEventAccessibleGetAllActionNames: return QString("GetAllActionNames"); break;
+ case kEventAccessibleGetFocusedChild: return QString("GetFocusedChild"); break;
+ default:
+ return QString("Unknown accessibility event type: %1").arg(kind);
+ break;
+ };
+}
+*/
+#ifndef QT_MAC_USE_COCOA
+static bool qt_mac_append_cf_uniq(CFMutableArrayRef array, CFTypeRef value)
+{
+ if (value == 0)
+ return false;
+
+ CFRange range;
+ range.location = 0;
+ range.length = CFArrayGetCount(array);
+ if(!CFArrayContainsValue(array, range, value)) {
+ CFArrayAppendValue(array, value);
+ return true;
+ }
+ return false;
+}
+
+static OSStatus setAttributeValue(EventRef event, const QList<QAElement> &elements)
+{
+ CFMutableArrayRef array = CFArrayCreateMutable(0, 0, &kCFTypeArrayCallBacks);
+ foreach (const QAElement &element, elements) {
+ if (element.isValid())
+ CFArrayAppendValue(array, element.element());
+ }
+
+ const OSStatus err = SetEventParameter(event, kEventParamAccessibleAttributeValue,
+ typeCFTypeRef, sizeof(array), &array);
+ CFRelease(array);
+ return err;
+}
+#endif //QT_MAC_USE_COCOA
+
+/*
+ Gets the AccessibleObject parameter from an event.
+*/
+static inline AXUIElementRef getAccessibleObjectParameter(EventRef event)
+{
+ AXUIElementRef element;
+ GetEventParameter(event, kEventParamAccessibleObject, typeCFTypeRef, 0,
+ sizeof(element), 0, &element);
+ return element;
+}
+
+/*
+ The application event handler makes sure that all top-level qt windows are registered
+ before any accessibility events are handeled.
+*/
+#ifndef QT_MAC_USE_COCOA
+static OSStatus applicationEventHandler(EventHandlerCallRef next_ref, EventRef event, void *)
+{
+ QAInterface rootInterface(QAccessible::queryAccessibleInterface(rootObject ? rootObject : qApp), 0);
+ accessibleHierarchyManager()->registerChildren(rootInterface);
+
+ return CallNextEventHandler(next_ref, event);
+}
+
+/*
+ Returns the value for element by combining the QAccessibility::Checked and
+ QAccessibility::Mixed flags into an int value that the Mac accessibilty
+ system understands. This works for check boxes, radio buttons, and the like.
+ The return values are:
+ 0: unchecked
+ 1: checked
+ 2: undecided
+*/
+static int buttonValue(QAInterface element)
+{
+ const QAccessible::State state = element.state();
+ if (state & QAccessible::Mixed)
+ return 2;
+ else if(state & QAccessible::Checked)
+ return 1;
+ else
+ return 0;
+}
+
+static QString getValue(const QAInterface &interface)
+{
+ const QAccessible::Role role = interface.role();
+ if (role == QAccessible::RadioButton || role == QAccessible::CheckBox)
+ return QString::number(buttonValue(interface));
+ else
+ return interface.text(QAccessible::Value);
+}
+#endif //QT_MAC_USE_COCOA
+
+/*
+ Translates a QAccessible::Role into a mac accessibility role.
+*/
+static CFStringRef macRole(const QAInterface &interface)
+{
+ const QAccessible::Role qtRole = interface.role();
+
+// qDebug() << "role for" << interface.object() << "interface role" << hex << qtRole;
+
+ // Qt accessibility: QAccessible::Splitter contains QAccessible::Grip.
+ // Mac accessibility: AXSplitGroup contains AXSplitter.
+ if (qtRole == QAccessible::Grip) {
+ const QAInterface parent = interface.parent();
+ if (parent.isValid() && parent.role() == QAccessible::Splitter)
+ return CFStringRef(QAXSplitterRole);
+ }
+
+ // Tab widgets and standalone tab bars get the kAXTabGroupRole. Accessibility
+ // for tab bars emebedded in a tab widget is handled by the tab widget.
+ if (isTabWidget(interface) || isStandaloneTabBar(interface))
+ return kAXTabGroupRole;
+
+ if (QObject *object = interface.object()) {
+ // ### The interface for an abstract scroll area returns the generic "Client"
+ // role, so we have to to an extra detect on the QObject here.
+ if (object->inherits("QAbstractScrollArea") && interface.id() == 0)
+ return CFStringRef(QAXScrollAreaRole);
+
+ if (object->inherits("QDockWidget"))
+ return CFStringRef(QAXUnknownRole);
+ }
+
+ int i = 0;
+ int testRole = text_bindings[i][0].qt;
+ while (testRole != -1) {
+ if (testRole == qtRole)
+ return CFStringRef(text_bindings[i][0].mac);
+ ++i;
+ testRole = text_bindings[i][0].qt;
+ }
+
+// qDebug() << "got unknown role!" << interface << interface.parent();
+
+ return CFStringRef(QAXUnknownRole);
+}
+
+/*
+ Translates a QAccessible::Role and an attribute name into a QAccessible::Text, taking into
+ account execptions listed in text_bindings.
+*/
+#ifndef QT_MAC_USE_COCOA
+static int textForRoleAndAttribute(QAccessible::Role role, CFStringRef attribute)
+{
+ // Search for exception, return it if found.
+ int testRole = text_bindings[0][0].qt;
+ int i = 0;
+ while (testRole != -1) {
+ if (testRole == role) {
+ int j = 1;
+ int qtRole = text_bindings[i][j].qt;
+ CFStringRef testAttribute = CFStringRef(text_bindings[i][j].mac);
+ while (qtRole != -1) {
+ if (CFStringCompare(attribute, testAttribute, 0) == kCFCompareEqualTo) {
+ return (QAccessible::Text)qtRole;
+ }
+ ++j;
+ testAttribute = CFStringRef(text_bindings[i][j].mac); /// ### custom compare
+ qtRole = text_bindings[i][j].qt; /// ### custom compare
+ }
+ break;
+ }
+ ++i;
+ testRole = text_bindings[i][0].qt;
+ }
+
+ // Return default mappping
+ if (CFStringCompare(attribute, CFStringRef(QAXTitleAttribute), 0) == kCFCompareEqualTo)
+ return QAccessible::Name;
+ else if (CFStringCompare(attribute, CFStringRef(QAXValueAttribute), 0) == kCFCompareEqualTo)
+ return QAccessible::Value;
+ else if (CFStringCompare(attribute, CFStringRef(QAXHelpAttribute), 0) == kCFCompareEqualTo)
+ return QAccessible::Help;
+ else if (CFStringCompare(attribute, CFStringRef(QAXDescriptionAttribute), 0) == kCFCompareEqualTo)
+ return QAccessible::Description;
+ else
+ return -1;
+}
+
+/*
+ Returns the subrole string constant for the interface if it has one,
+ else returns an empty string.
+*/
+static QCFString subrole(const QAInterface &interface)
+{
+ const QAInterface parent = interface.parent();
+ if (parent.isValid() == false)
+ return QCFString();
+
+ if (parent.role() == QAccessible::ScrollBar) {
+ QCFString subrole;
+ switch(interface.id()) {
+ case 1: subrole = CFStringRef(QAXDecrementArrowSubrole); break;
+ case 2: subrole = CFStringRef(QAXDecrementPageSubrole); break;
+ case 4: subrole = CFStringRef(QAXIncrementPageSubrole); break;
+ case 5: subrole = CFStringRef(QAXIncrementArrowSubrole); break;
+ default:
+ break;
+ }
+ return subrole;
+ }
+ return QCFString();
+}
+
+// Gets the scroll bar orientation by asking the QAbstractSlider object directly.
+static Qt::Orientation scrollBarOrientation(const QAInterface &scrollBar)
+{
+ QObject *const object = scrollBar.object();
+ if (QAbstractSlider * const sliderObject = qobject_cast<QAbstractSlider * const>(object))
+ return sliderObject->orientation();
+
+ return Qt::Vertical; // D'oh! The interface wasn't a scroll bar.
+}
+
+static QAInterface scrollAreaGetScrollBarInterface(const QAInterface &scrollArea, Qt::Orientation orientation)
+{
+ if (macRole(scrollArea) != CFStringRef(CFStringRef(QAXScrollAreaRole)))
+ return QAInterface();
+
+ // Child 1 is the contents widget, 2 and 3 are the scroll bar containers wich contains possible scroll bars.
+ for (int i = 2; i <= 3; ++i) {
+ QAInterface scrollBarContainer = scrollArea.childAt(i);
+ for (int i = 1; i <= scrollBarContainer.childCount(); ++i) {
+ QAInterface scrollBar = scrollBarContainer.childAt(i);
+ if (scrollBar.isValid() &&
+ scrollBar.role() == QAccessible::ScrollBar &&
+ scrollBarOrientation(scrollBar) == orientation)
+ return scrollBar;
+ }
+ }
+
+ return QAInterface();
+}
+
+static bool scrollAreaHasScrollBar(const QAInterface &scrollArea, Qt::Orientation orientation)
+{
+ return scrollAreaGetScrollBarInterface(scrollArea, orientation).isValid();
+}
+
+static QAElement scrollAreaGetScrollBar(const QAInterface &scrollArea, Qt::Orientation orientation)
+{
+ return accessibleHierarchyManager()->lookup(scrollAreaGetScrollBarInterface(scrollArea, orientation));
+}
+
+static QAElement scrollAreaGetContents(const QAInterface &scrollArea)
+{
+ // Child 1 is the contents widget,
+ return accessibleHierarchyManager()->lookup(scrollArea.navigate(QAccessible::Child, 1));
+}
+
+static QAElement tabWidgetGetContents(const QAInterface &interface)
+{
+ // A kAXTabGroup has a kAXContents attribute, which consists of the
+ // ui elements for the current tab page. Get the current tab page
+ // from the QStackedWidget, where the current visible page can
+ // be found at index 1.
+ QAInterface stackedWidget = interface.childAt(1);
+ accessibleHierarchyManager()->registerChildren(stackedWidget);
+ QAInterface tabPageInterface = stackedWidget.childAt(1);
+ return accessibleHierarchyManager()->lookup(tabPageInterface);
+}
+
+static QList<QAElement> tabBarGetTabs(const QAInterface &interface)
+{
+ // Get the tabs by searching for children with the "PageTab" role.
+ // This filters out the left/right navigation buttons.
+ accessibleHierarchyManager()->registerChildren(interface);
+ QList<QAElement> tabs;
+ const int numChildren = interface.childCount();
+ for (int i = 1; i < numChildren + 1; ++i) {
+ QAInterface child = interface.navigate(QAccessible::Child, i);
+ if (child.isValid() && child.role() == QAccessible::PageTab) {
+ tabs.append(accessibleHierarchyManager()->lookup(child));
+ }
+ }
+ return tabs;
+}
+
+static QList<QAElement> tabWidgetGetTabs(const QAInterface &interface)
+{
+ // Each QTabWidget has two children, a QStackedWidget and a QTabBar.
+ // Get the tabs from the QTabBar.
+ return tabBarGetTabs(interface.childAt(2));
+}
+
+static QList<QAElement> tabWidgetGetChildren(const QAInterface &interface)
+{
+ // The children for a kAXTabGroup should consist of the tabs and the
+ // contents of the current open tab page.
+ QList<QAElement> children = tabWidgetGetTabs(interface);
+ children += tabWidgetGetContents(interface);
+ return children;
+}
+#endif //QT_MAC_USE_COCOA
+
+/*
+ Returns the label (buddy) interface for interface, or 0 if it has none.
+*/
+/*
+static QAInterface findLabel(const QAInterface &interface)
+{
+ return interface.navigate(QAccessible::Label, 1);
+}
+*/
+/*
+ Returns a list of interfaces this interface labels, or an empty list if it doesn't label any.
+*/
+/*
+static QList<QAInterface> findLabelled(const QAInterface &interface)
+{
+ QList<QAInterface> interfaceList;
+
+ int count = 1;
+ const QAInterface labelled = interface.navigate(QAccessible::Labelled, count);
+ while (labelled.isValid()) {
+ interfaceList.append(labelled);
+ ++count;
+ }
+ return interfaceList;
+}
+*/
+/*
+ Tests if the given QAInterface has data for a mac attribute.
+*/
+#ifndef QT_MAC_USE_COCOA
+static bool supportsAttribute(CFStringRef attribute, const QAInterface &interface)
+{
+ const int text = textForRoleAndAttribute(interface.role(), attribute);
+
+ // Special case: Static texts don't have a title.
+ if (interface.role() == QAccessible::StaticText && attribute == CFStringRef(QAXTitleAttribute))
+ return false;
+
+ // Return true if we the attribute matched a QAccessible::Role and we get text for that role from the interface.
+ if (text != -1) {
+ if (text == QAccessible::Value) // Special case for Value, see getValue()
+ return !getValue(interface).isEmpty();
+ else
+ return !interface.text((QAccessible::Text)text).isEmpty();
+ }
+
+ if (CFStringCompare(attribute, CFStringRef(QAXChildrenAttribute), 0) == kCFCompareEqualTo) {
+ if (interface.childCount() > 0)
+ return true;
+ }
+
+ if (CFStringCompare(attribute, CFStringRef(QAXSubroleAttribute), 0) == kCFCompareEqualTo) {
+ return (subrole(interface) != QCFString());
+ }
+
+ return false;
+}
+
+static void appendIfSupported(CFMutableArrayRef array, CFStringRef attribute, const QAInterface &interface)
+{
+ if (supportsAttribute(attribute, interface))
+ qt_mac_append_cf_uniq(array, attribute);
+}
+
+/*
+ Returns the names of the attributes the give QAInterface supports.
+*/
+static OSStatus getAllAttributeNames(EventRef event, const QAInterface &interface, EventHandlerCallRef next_ref)
+{
+ // Call system event handler.
+ OSStatus err = CallNextEventHandler(next_ref, event);
+ if(err != noErr && err != eventNotHandledErr)
+ return err;
+ CFMutableArrayRef attrs = 0;
+ GetEventParameter(event, kEventParamAccessibleAttributeNames, typeCFMutableArrayRef, 0,
+ sizeof(attrs), 0, &attrs);
+
+ if (!attrs)
+ return eventNotHandledErr;
+
+ // Append attribute names that are always supported.
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXPositionAttribute));
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXSizeAttribute));
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXRoleAttribute));
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXEnabledAttribute));
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXWindowAttribute));
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXTopLevelUIElementAttribute));
+
+ // Append these names if the QInterafceItem returns any data for them.
+ appendIfSupported(attrs, CFStringRef(QAXTitleAttribute), interface);
+ appendIfSupported(attrs, CFStringRef(QAXValueAttribute), interface);
+ appendIfSupported(attrs, CFStringRef(QAXDescriptionAttribute), interface);
+ appendIfSupported(attrs, CFStringRef(QAXLinkedUIElementsAttribute), interface);
+ appendIfSupported(attrs, CFStringRef(QAXHelpAttribute), interface);
+ appendIfSupported(attrs, CFStringRef(QAXTitleUIElementAttribute), interface);
+ appendIfSupported(attrs, CFStringRef(QAXChildrenAttribute), interface);
+ appendIfSupported(attrs, CFStringRef(QAXSubroleAttribute), interface);
+
+ // Append attribute names based on the interaface role.
+ switch (interface.role()) {
+ case QAccessible::Window:
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXMainAttribute));
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXMinimizedAttribute));
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXCloseButtonAttribute));
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXZoomButtonAttribute));
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXMinimizeButtonAttribute));
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXToolbarButtonAttribute));
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXGrowAreaAttribute));
+ break;
+ case QAccessible::RadioButton:
+ case QAccessible::CheckBox:
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXMinValueAttribute));
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXMaxValueAttribute));
+ break;
+ case QAccessible::ScrollBar:
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXOrientationAttribute));
+ break;
+ case QAccessible::Splitter:
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXSplittersAttribute));
+ break;
+ case QAccessible::Table:
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXRowsAttribute));
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXVisibleRowsAttribute));
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXSelectedRowsAttribute));
+ break;
+ default:
+ break;
+ }
+
+ // Append attribute names based on the mac accessibility role.
+ const QCFString mac_role = macRole(interface);
+ if (mac_role == CFStringRef(QAXSplitterRole)) {
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXPreviousContentsAttribute));
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXNextContentsAttribute));
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXOrientationAttribute));
+ } else if (mac_role == CFStringRef(QAXScrollAreaRole)) {
+ if (scrollAreaHasScrollBar(interface, Qt::Horizontal))
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXHorizontalScrollBarAttribute));
+ if (scrollAreaHasScrollBar(interface, Qt::Vertical))
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXVerticalScrollBarAttribute));
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXContentsAttribute));
+ } else if (mac_role == CFStringRef(QAXTabGroupRole)) {
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXTabsAttribute));
+ // Only tab widgets can have the contents attribute, there is no way of getting
+ // the contents from a QTabBar.
+ if (isTabWidget(interface))
+ qt_mac_append_cf_uniq(attrs, CFStringRef(QAXContentsAttribute));
+ }
+
+ return noErr;
+}
+
+static void handleStringAttribute(EventRef event, QAccessible::Text text, const QAInterface &interface)
+{
+ QString str = interface.text(text);
+ if (str.isEmpty())
+ return;
+
+ // Remove any html markup from the text string, or VoiceOver will read the html tags.
+ static QTextDocument document;
+ document.setHtml(str);
+ str = document.toPlainText();
+
+ CFStringRef cfstr = QCFString::toCFStringRef(str);
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeCFStringRef, sizeof(cfstr), &cfstr);
+}
+
+/*
+ Handles the parent attribute for a interface.
+ There are basically three cases here:
+ 1. interface is a HIView and has only HIView children.
+ 2. interface is a HIView but has children that is not a HIView
+ 3. interface is not a HIView.
+*/
+static OSStatus handleChildrenAttribute(EventHandlerCallRef next_ref, EventRef event, QAInterface &interface)
+{
+ // Add the children for this interface to the global QAccessibelHierachyManager.
+ accessibleHierarchyManager()->registerChildren(interface);
+
+ if (isTabWidget(interface)) {
+ QList<QAElement> children = tabWidgetGetChildren(interface);
+ const int childCount = children.count();
+
+ CFMutableArrayRef array = 0;
+ array = CFArrayCreateMutable(0, 0, &kCFTypeArrayCallBacks);
+ for (int i = 0; i < childCount; ++i) {
+ qt_mac_append_cf_uniq(array, children.at(i).element());
+ }
+
+ OSStatus err;
+ err = SetEventParameter(event, kEventParamAccessibleAttributeValue, typeCFArrayRef, sizeof(array), &array);
+ if (err != noErr)
+ qWarning("Qt:Internal error (%s:%d)", __FILE__, __LINE__);
+
+ return noErr;
+ }
+
+ const QList<QAElement> children = lookup(interface.children());
+ const int childCount = children.count();
+
+ OSStatus err = eventNotHandledErr;
+ if (interface.isHIView())
+ err = CallNextEventHandler(next_ref, event);
+
+ CFMutableArrayRef array = 0;
+ int arraySize = 0;
+ if (err == noErr) {
+ CFTypeRef obj = 0;
+ err = GetEventParameter(event, kEventParamAccessibleAttributeValue, typeCFTypeRef, NULL , sizeof(obj), NULL, &obj);
+ if (err == noErr && obj != 0) {
+ array = (CFMutableArrayRef)obj;
+ arraySize = CFArrayGetCount(array);
+ }
+ }
+
+ if (array) {
+ CFArrayRemoveAllValues(array);
+ for (int i = 0; i < childCount; ++i) {
+ qt_mac_append_cf_uniq(array, children.at(i).element());
+ }
+ } else {
+ array = CFArrayCreateMutable(0, 0, &kCFTypeArrayCallBacks);
+ for (int i = 0; i < childCount; ++i) {
+ qt_mac_append_cf_uniq(array, children.at(i).element());
+ }
+
+ err = SetEventParameter(event, kEventParamAccessibleAttributeValue, typeCFArrayRef, sizeof(array), &array);
+ if (err != noErr)
+ qWarning("Qt:Internal error (%s:%d)", __FILE__, __LINE__);
+ }
+
+ return noErr;
+}
+
+/*
+
+*/
+static OSStatus handleParentAttribute(EventHandlerCallRef next_ref, EventRef event, const QAInterface &interface)
+{
+ OSStatus err = eventNotHandledErr;
+ if (interface.isHIView()) {
+ err = CallNextEventHandler(next_ref, event);
+ }
+ if (err == noErr)
+ return err;
+
+ const QAInterface parentInterface = interface.navigate(QAccessible::Ancestor, 1);
+ const QAElement parentElement = accessibleHierarchyManager()->lookup(parentInterface);
+
+ if (parentElement.isValid() == false)
+ return eventNotHandledErr;
+
+ AXUIElementRef elementRef = parentElement.element();
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeCFTypeRef, sizeof(elementRef), &elementRef);
+ return noErr;
+}
+#endif
+
+struct IsWindowTest
+{
+ static inline bool test(const QAInterface &interface)
+ {
+ return (interface.role() == QAccessible::Window);
+ }
+};
+
+struct IsWindowAndNotDrawerOrSheetTest
+{
+ static inline bool test(const QAInterface &interface)
+ {
+ QWidget * const widget = qobject_cast<QWidget*>(interface.object());
+ return (interface.role() == QAccessible::Window &&
+ widget && widget->isWindow() &&
+ !qt_mac_is_macdrawer(widget) &&
+ !qt_mac_is_macsheet(widget));
+ }
+};
+
+/*
+ Navigates up the iterfaces ancestor hierachy until a QAccessibleInterface that
+ passes the Test is found. If we reach a interface that is a HIView we stop the
+ search and call AXUIElementCopyAttributeValue.
+*/
+template <typename TestType>
+OSStatus navigateAncestors(EventHandlerCallRef next_ref, EventRef event, const QAInterface &interface, CFStringRef attribute)
+{
+ if (interface.isHIView())
+ return CallNextEventHandler(next_ref, event);
+
+ QAInterface current = interface;
+ QAElement element;
+ while (current.isValid()) {
+ if (TestType::test(interface)) {
+ element = accessibleHierarchyManager()->lookup(current);
+ break;
+ }
+
+ // If we reach an InterfaceItem that is a HiView we can hand of the search to
+ // the system event handler. This is the common case.
+ if (current.isHIView()) {
+ CFTypeRef value = 0;
+ const QAElement currentElement = accessibleHierarchyManager()->lookup(current);
+ AXError err = AXUIElementCopyAttributeValue(currentElement.element(), attribute, &value);
+ AXUIElementRef newElement = (AXUIElementRef)value;
+
+ if (err == noErr)
+ element = QAElement(newElement);
+
+ if (newElement != 0)
+ CFRelease(newElement);
+ break;
+ }
+
+ QAInterface next = current.parent();
+ if (next.isValid() == false)
+ break;
+ if (next == current)
+ break;
+ current = next;
+ }
+
+ if (element.isValid() == false)
+ return eventNotHandledErr;
+
+
+ AXUIElementRef elementRef = element.element();
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeCFTypeRef,
+ sizeof(elementRef), &elementRef);
+ return noErr;
+}
+
+/*
+ Returns the top-level window for an interface, which is the closest ancestor interface that
+ has the Window role, but is not a sheet or a drawer.
+*/
+#ifndef QT_MAC_USE_COCOA
+static OSStatus handleWindowAttribute(EventHandlerCallRef next_ref, EventRef event, const QAInterface &interface)
+{
+ return navigateAncestors<IsWindowAndNotDrawerOrSheetTest>(next_ref, event, interface, CFStringRef(QAXWindowAttribute));
+}
+
+/*
+ Returns the top-level window for an interface, which is the closest ancestor interface that
+ has the Window role. (Can also be a sheet or a drawer)
+*/
+static OSStatus handleTopLevelUIElementAttribute(EventHandlerCallRef next_ref, EventRef event, const QAInterface &interface)
+{
+ return navigateAncestors<IsWindowTest>(next_ref, event, interface, CFStringRef(QAXTopLevelUIElementAttribute));
+}
+
+/*
+ Returns the tab buttons for an interface.
+*/
+static OSStatus handleTabsAttribute(EventHandlerCallRef next_ref, EventRef event, QAInterface &interface)
+{
+ Q_UNUSED(next_ref);
+ if (isTabWidget(interface))
+ return setAttributeValue(event, tabWidgetGetTabs(interface));
+ else
+ return setAttributeValue(event, tabBarGetTabs(interface));
+}
+
+static OSStatus handlePositionAttribute(EventHandlerCallRef, EventRef event, const QAInterface &interface)
+{
+ QPoint qpoint(interface.rect().topLeft());
+ HIPoint point;
+ point.x = qpoint.x();
+ point.y = qpoint.y();
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeHIPoint, sizeof(point), &point);
+ return noErr;
+}
+
+static OSStatus handleSizeAttribute(EventHandlerCallRef, EventRef event, const QAInterface &interface)
+{
+ QSize qSize(interface.rect().size());
+ HISize size;
+ size.width = qSize.width();
+ size.height = qSize.height();
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeHISize, sizeof(size), &size);
+ return noErr;
+}
+
+static OSStatus handleSubroleAttribute(EventHandlerCallRef, EventRef event, const QAInterface &interface)
+{
+ const QCFString role = subrole(interface);
+ CFStringRef rolestr = (CFStringRef)role;
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeCFTypeRef, sizeof(rolestr), &rolestr);
+ return noErr;
+}
+
+static OSStatus handleOrientationAttribute(EventHandlerCallRef next_ref, EventRef event, const QAInterface &interface)
+{
+ QObject *const object = interface.object();
+ Qt::Orientation orientation;
+ if (interface.role() == QAccessible::ScrollBar) {
+ orientation = scrollBarOrientation(interface);
+ } else if (QSplitterHandle * const splitter = qobject_cast<QSplitterHandle * const>(object)) {
+ // Qt reports the layout orientation, but we want the splitter handle orientation.
+ orientation = (splitter->orientation() == Qt::Horizontal) ? Qt::Vertical : Qt::Horizontal;
+ } else {
+ return CallNextEventHandler(next_ref, event);
+ }
+ const CFStringRef orientationString = (orientation == Qt::Vertical)
+ ? CFStringRef(QAXVerticalOrientationValue) : CFStringRef(QAXHorizontalOrientationValue);
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeCFStringRef, sizeof(orientationString), &orientationString);
+ return noErr;
+}
+
+/*
+ Figures out the next or previous contents for a splitter.
+*/
+static OSStatus handleSplitterContentsAttribute(EventHandlerCallRef next_ref, EventRef event, const QAInterface &interface, QCFString nextOrPrev)
+{
+ if (interface.isValid() == false || interface.role() != QAccessible::Grip)
+ return eventNotHandledErr;
+
+ const QAInterface parent = interface.parent();
+ if (parent.isValid() == false)
+ return CallNextEventHandler(next_ref, event);
+
+ if (parent.role() != QAccessible::Splitter)
+ return CallNextEventHandler(next_ref, event);
+
+ const QSplitter * const splitter = qobject_cast<const QSplitter * const>(parent.object());
+ if (splitter == 0)
+ return CallNextEventHandler(next_ref, event);
+
+ QWidget * const splitterHandle = qobject_cast<QWidget * const>(interface.object());
+ const int splitterHandleIndex = splitter->indexOf(splitterHandle);
+ const int widgetIndex = (nextOrPrev == QCFString(CFStringRef(QAXPreviousContentsAttribute))) ? splitterHandleIndex - 1 : splitterHandleIndex;
+ const QAElement contentsElement = accessibleHierarchyManager()->lookup(splitter->widget(widgetIndex), 0);
+ return setAttributeValue(event, QList<QAElement>() << contentsElement);
+}
+
+/*
+ Creates a list of all splitter handles the splitter contains.
+*/
+static OSStatus handleSplittersAttribute(EventHandlerCallRef next_ref, EventRef event, QAInterface &interface)
+{
+ const QSplitter * const splitter = qobject_cast<const QSplitter * const>(interface.object());
+ if (splitter == 0)
+ return CallNextEventHandler(next_ref, event);
+
+ accessibleHierarchyManager()->registerChildren(interface);
+
+ QList<QAElement> handles;
+ const int visibleSplitterCount = splitter->count() -1; // skip first handle, it's always invisible.
+ for (int i = 0; i < visibleSplitterCount; ++i)
+ handles.append(accessibleHierarchyManager()->lookup(splitter->handle(i + 1), 0));
+
+ return setAttributeValue(event, handles);
+}
+
+// This handler gets the scroll bars for a scroll area
+static OSStatus handleScrollBarAttribute(EventHandlerCallRef next_ref, EventRef event, QAInterface &scrollArea, Qt::Orientation orientation)
+{
+ QAElement scrollBar = scrollAreaGetScrollBar(scrollArea, orientation);
+ if (scrollBar.isValid() == false)
+ return CallNextEventHandler(next_ref, event);
+
+ AXUIElementRef elementRef = scrollBar.element();
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeCFTypeRef, sizeof(elementRef), &elementRef);
+ return noErr;
+}
+
+// This handler gets the contents for a scroll area or tab widget.
+static OSStatus handleContentsAttribute(EventHandlerCallRef next_ref, EventRef event, QAInterface &interface)
+{
+ const QCFString mac_role = macRole(interface);
+
+ QAElement contents;
+
+ if (mac_role == kAXTabGroupRole) {
+ contents = tabWidgetGetContents(interface);
+ } else {
+ contents = scrollAreaGetContents(interface);
+ if (contents.isValid() == false)
+ return CallNextEventHandler(next_ref, event);
+ }
+
+ return setAttributeValue(event, QList<QAElement>() << contents);
+}
+
+static OSStatus handleRowsAttribute(EventHandlerCallRef, EventRef event, QAInterface &tableView)
+{
+ QList<QAElement> rows = lookup(tableView.children());
+
+ // kill the first row which is the horizontal header.
+ rows.removeAt(0);
+
+ return setAttributeValue(event, rows);
+}
+
+static OSStatus handleVisibleRowsAttribute(EventHandlerCallRef, EventRef event, QAInterface &tableView)
+{
+ QList<QAElement> visibleRows;
+
+ QList<QAInterface> rows = tableView.children();
+ // kill the first row which is the horizontal header.
+ rows.removeAt(0);
+
+ foreach (const QAInterface &interface, rows)
+ if ((interface.state() & QAccessible::Invisible) == false)
+ visibleRows.append(accessibleHierarchyManager()->lookup(interface));
+
+ return setAttributeValue(event, visibleRows);
+}
+
+static OSStatus handleSelectedRowsAttribute(EventHandlerCallRef, EventRef event, QAInterface &tableView)
+{
+ QList<QAElement> selectedRows;
+ foreach (const QAInterface &interface, tableView.children())
+ if ((interface.state() & QAccessible::Selected))
+ selectedRows.append(accessibleHierarchyManager()->lookup(interface));
+
+ return setAttributeValue(event, selectedRows);
+}
+
+static OSStatus getNamedAttribute(EventHandlerCallRef next_ref, EventRef event, QAInterface &interface)
+{
+ CFStringRef var;
+ GetEventParameter(event, kEventParamAccessibleAttributeName, typeCFStringRef, 0,
+ sizeof(var), 0, &var);
+
+ if (CFStringCompare(var, CFStringRef(QAXChildrenAttribute), 0) == kCFCompareEqualTo) {
+ return handleChildrenAttribute(next_ref, event, interface);
+ } else if(CFStringCompare(var, CFStringRef(QAXTopLevelUIElementAttribute), 0) == kCFCompareEqualTo) {
+ return handleTopLevelUIElementAttribute(next_ref, event, interface);
+ } else if(CFStringCompare(var, CFStringRef(QAXWindowAttribute), 0) == kCFCompareEqualTo) {
+ return handleWindowAttribute(next_ref, event, interface);
+ } else if(CFStringCompare(var, CFStringRef(QAXParentAttribute), 0) == kCFCompareEqualTo) {
+ return handleParentAttribute(next_ref, event, interface);
+ } else if (CFStringCompare(var, CFStringRef(QAXPositionAttribute), 0) == kCFCompareEqualTo) {
+ return handlePositionAttribute(next_ref, event, interface);
+ } else if (CFStringCompare(var, CFStringRef(QAXSizeAttribute), 0) == kCFCompareEqualTo) {
+ return handleSizeAttribute(next_ref, event, interface);
+ } else if (CFStringCompare(var, CFStringRef(QAXRoleAttribute), 0) == kCFCompareEqualTo) {
+ CFStringRef role = macRole(interface);
+// ###
+// QWidget * const widget = qobject_cast<QWidget *>(interface.object());
+// if (role == CFStringRef(QAXUnknownRole) && widget && widget->isWindow())
+// role = CFStringRef(QAXWindowRole);
+
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeCFStringRef,
+ sizeof(role), &role);
+
+ } else if (CFStringCompare(var, CFStringRef(QAXEnabledAttribute), 0) == kCFCompareEqualTo) {
+ Boolean val = !((interface.state() & QAccessible::Unavailable))
+ && !((interface.state() & QAccessible::Invisible));
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeBoolean,
+ sizeof(val), &val);
+ } else if (CFStringCompare(var, CFStringRef(QAXExpandedAttribute), 0) == kCFCompareEqualTo) {
+ Boolean val = (interface.state() & QAccessible::Expanded);
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeBoolean,
+ sizeof(val), &val);
+ } else if (CFStringCompare(var, CFStringRef(QAXSelectedAttribute), 0) == kCFCompareEqualTo) {
+ Boolean val = (interface.state() & QAccessible::Selection);
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeBoolean,
+ sizeof(val), &val);
+ } else if (CFStringCompare(var, CFStringRef(QAXFocusedAttribute), 0) == kCFCompareEqualTo) {
+ Boolean val = (interface.state() & QAccessible::Focus);
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeBoolean,
+ sizeof(val), &val);
+ } else if (CFStringCompare(var, CFStringRef(QAXSelectedChildrenAttribute), 0) == kCFCompareEqualTo) {
+ const int cc = interface.childCount();
+ QList<QAElement> selected;
+ for (int i = 1; i <= cc; ++i) {
+ const QAInterface child_iface = interface.navigate(QAccessible::Child, i);
+ if (child_iface.isValid() && child_iface.state() & QAccessible::Selected)
+ selected.append(accessibleHierarchyManager()->lookup(child_iface));
+ }
+
+ return setAttributeValue(event, selected);
+
+ } else if (CFStringCompare(var, CFStringRef(QAXCloseButtonAttribute), 0) == kCFCompareEqualTo) {
+ if(interface.object() && interface.object()->isWidgetType()) {
+ Boolean val = true; //do we want to add a WState for this?
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeBoolean,
+ sizeof(val), &val);
+ }
+ } else if (CFStringCompare(var, CFStringRef(QAXZoomButtonAttribute), 0) == kCFCompareEqualTo) {
+ if(interface.object() && interface.object()->isWidgetType()) {
+ QWidget *widget = (QWidget*)interface.object();
+ Boolean val = (widget->windowFlags() & Qt::WindowMaximizeButtonHint);
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeBoolean,
+ sizeof(val), &val);
+ }
+ } else if (CFStringCompare(var, CFStringRef(QAXMinimizeButtonAttribute), 0) == kCFCompareEqualTo) {
+ if(interface.object() && interface.object()->isWidgetType()) {
+ QWidget *widget = (QWidget*)interface.object();
+ Boolean val = (widget->windowFlags() & Qt::WindowMinimizeButtonHint);
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeBoolean,
+ sizeof(val), &val);
+ }
+ } else if (CFStringCompare(var, CFStringRef(QAXToolbarButtonAttribute), 0) == kCFCompareEqualTo) {
+ if(interface.object() && interface.object()->isWidgetType()) {
+ QWidget *widget = (QWidget*)interface.object();
+ Boolean val = qobject_cast<QMainWindow *>(widget) != 0;
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeBoolean,
+ sizeof(val), &val);
+ }
+ } else if (CFStringCompare(var, CFStringRef(QAXGrowAreaAttribute), 0) == kCFCompareEqualTo) {
+ if(interface.object() && interface.object()->isWidgetType()) {
+ Boolean val = true; //do we want to add a WState for this?
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeBoolean,
+ sizeof(val), &val);
+ }
+ } else if (CFStringCompare(var, CFStringRef(QAXMinimizedAttribute), 0) == kCFCompareEqualTo) {
+ if (interface.object() && interface.object()->isWidgetType()) {
+ QWidget *widget = (QWidget*)interface.object();
+ Boolean val = (widget->windowState() & Qt::WindowMinimized);
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeBoolean,
+ sizeof(val), &val);
+ }
+ } else if (CFStringCompare(var, CFStringRef(QAXSubroleAttribute), 0) == kCFCompareEqualTo) {
+ return handleSubroleAttribute(next_ref, event, interface);
+ } else if (CFStringCompare(var, CFStringRef(QAXRoleDescriptionAttribute), 0) == kCFCompareEqualTo) {
+#if !defined(QT_MAC_USE_COCOA)
+ if (HICopyAccessibilityRoleDescription) {
+ const CFStringRef roleDescription = HICopyAccessibilityRoleDescription(macRole(interface), 0);
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeCFStringRef,
+ sizeof(roleDescription), &roleDescription);
+ } else
+#endif
+ {
+ // Just use Qt::Description on 10.3
+ handleStringAttribute(event, QAccessible::Description, interface);
+ }
+ } else if (CFStringCompare(var, CFStringRef(QAXTitleAttribute), 0) == kCFCompareEqualTo) {
+ const QAccessible::Role role = interface.role();
+ const QAccessible::Text text = (QAccessible::Text)textForRoleAndAttribute(role, var);
+ handleStringAttribute(event, text, interface);
+ } else if (CFStringCompare(var, CFStringRef(QAXValueAttribute), 0) == kCFCompareEqualTo) {
+ const QAccessible::Role role = interface.role();
+ const QAccessible::Text text = (QAccessible::Text)textForRoleAndAttribute(role, var);
+ if (role == QAccessible::CheckBox || role == QAccessible::RadioButton) {
+ int value = buttonValue(interface);
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeUInt32, sizeof(value), &value);
+ } else {
+ handleStringAttribute(event, text, interface);
+ }
+ } else if (CFStringCompare(var, CFStringRef(QAXDescriptionAttribute), 0) == kCFCompareEqualTo) {
+ const QAccessible::Role role = interface.role();
+ const QAccessible::Text text = (QAccessible::Text)textForRoleAndAttribute(role, var);
+ handleStringAttribute(event, text, interface);
+ } else if (CFStringCompare(var, CFStringRef(QAXLinkedUIElementsAttribute), 0) == kCFCompareEqualTo) {
+ return CallNextEventHandler(next_ref, event);
+ } else if (CFStringCompare(var, CFStringRef(QAXHelpAttribute), 0) == kCFCompareEqualTo) {
+ const QAccessible::Role role = interface.role();
+ const QAccessible::Text text = (QAccessible::Text)textForRoleAndAttribute(role, var);
+ handleStringAttribute(event, text, interface);
+ } else if (CFStringCompare(var, kAXTitleUIElementAttribute, 0) == kCFCompareEqualTo) {
+ return CallNextEventHandler(next_ref, event);
+ } else if (CFStringCompare(var, CFStringRef(QAXTabsAttribute), 0) == kCFCompareEqualTo) {
+ return handleTabsAttribute(next_ref, event, interface);
+ } else if (CFStringCompare(var, CFStringRef(QAXMinValueAttribute), 0) == kCFCompareEqualTo) {
+ // tabs we first go to the tab bar which is child #2.
+ QAInterface tabBarInterface = interface.childAt(2);
+ return handleTabsAttribute(next_ref, event, tabBarInterface);
+ } else if (CFStringCompare(var, CFStringRef(QAXMinValueAttribute), 0) == kCFCompareEqualTo) {
+ if (interface.role() == QAccessible::RadioButton || interface.role() == QAccessible::CheckBox) {
+ uint value = 0;
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeUInt32, sizeof(value), &value);
+ } else {
+ return CallNextEventHandler(next_ref, event);
+ }
+ } else if (CFStringCompare(var, CFStringRef(QAXMaxValueAttribute), 0) == kCFCompareEqualTo) {
+ if (interface.role() == QAccessible::RadioButton || interface.role() == QAccessible::CheckBox) {
+ uint value = 2;
+ SetEventParameter(event, kEventParamAccessibleAttributeValue, typeUInt32, sizeof(value), &value);
+ } else {
+ return CallNextEventHandler(next_ref, event);
+ }
+ } else if (CFStringCompare(var, CFStringRef(QAXOrientationAttribute), 0) == kCFCompareEqualTo) {
+ return handleOrientationAttribute(next_ref, event, interface);
+ } else if (CFStringCompare(var, CFStringRef(QAXPreviousContentsAttribute), 0) == kCFCompareEqualTo) {
+ return handleSplitterContentsAttribute(next_ref, event, interface, CFStringRef(QAXPreviousContentsAttribute));
+ } else if (CFStringCompare(var, CFStringRef(QAXNextContentsAttribute), 0) == kCFCompareEqualTo) {
+ return handleSplitterContentsAttribute(next_ref, event, interface, CFStringRef(QAXNextContentsAttribute));
+ } else if (CFStringCompare(var, CFStringRef(QAXSplittersAttribute), 0) == kCFCompareEqualTo) {
+ return handleSplittersAttribute(next_ref, event, interface);
+ } else if (CFStringCompare(var, CFStringRef(QAXHorizontalScrollBarAttribute), 0) == kCFCompareEqualTo) {
+ return handleScrollBarAttribute(next_ref, event, interface, Qt::Horizontal);
+ } else if (CFStringCompare(var, CFStringRef(QAXVerticalScrollBarAttribute), 0) == kCFCompareEqualTo) {
+ return handleScrollBarAttribute(next_ref, event, interface, Qt::Vertical);
+ } else if (CFStringCompare(var, CFStringRef(QAXContentsAttribute), 0) == kCFCompareEqualTo) {
+ return handleContentsAttribute(next_ref, event, interface);
+ } else if (CFStringCompare(var, CFStringRef(QAXRowsAttribute), 0) == kCFCompareEqualTo) {
+ return handleRowsAttribute(next_ref, event, interface);
+ } else if (CFStringCompare(var, CFStringRef(QAXVisibleRowsAttribute), 0) == kCFCompareEqualTo) {
+ return handleVisibleRowsAttribute(next_ref, event, interface);
+ } else if (CFStringCompare(var, CFStringRef(QAXSelectedRowsAttribute), 0) == kCFCompareEqualTo) {
+ return handleSelectedRowsAttribute(next_ref, event, interface);
+ } else {
+ return CallNextEventHandler(next_ref, event);
+ }
+ return noErr;
+}
+
+static OSStatus isNamedAttributeSettable(EventRef event, const QAInterface &interface)
+{
+ CFStringRef var;
+ GetEventParameter(event, kEventParamAccessibleAttributeName, typeCFStringRef, 0,
+ sizeof(var), 0, &var);
+ Boolean settable = false;
+ if (CFStringCompare(var, CFStringRef(QAXFocusedAttribute), 0) == kCFCompareEqualTo) {
+ settable = true;
+ } else {
+ for (int r = 0; text_bindings[r][0].qt != -1; r++) {
+ if(interface.role() == (QAccessible::Role)text_bindings[r][0].qt) {
+ for (int a = 1; text_bindings[r][a].qt != -1; a++) {
+ if (CFStringCompare(var, CFStringRef(text_bindings[r][a].mac), 0) == kCFCompareEqualTo) {
+ settable = text_bindings[r][a].settable;
+ break;
+ }
+ }
+ }
+ }
+ }
+ SetEventParameter(event, kEventParamAccessibleAttributeSettable, typeBoolean,
+ sizeof(settable), &settable);
+ return noErr;
+}
+
+static OSStatus getChildAtPoint(EventHandlerCallRef next_ref, EventRef event, QAInterface &interface)
+{
+ Q_UNUSED(next_ref);
+ if (interface.isValid() == false)
+ return eventNotHandledErr;
+
+ // Add the children for this interface to the global QAccessibelHierachyManager.
+ accessibleHierarchyManager()->registerChildren(interface);
+
+ Point where;
+ GetEventParameter(event, kEventParamMouseLocation, typeQDPoint, 0, sizeof(where), 0, &where);
+ const QAInterface childInterface = interface.childAt(where.h, where.v);
+
+ if (childInterface.isValid() == false || childInterface == interface)
+ return eventNotHandledErr;
+
+ const QAElement element = accessibleHierarchyManager()->lookup(childInterface);
+ if (element.isValid() == false)
+ return eventNotHandledErr;
+
+ AXUIElementRef elementRef = element.element();
+ CFRetain(elementRef);
+ SetEventParameter(event, kEventParamAccessibleChild, typeCFTypeRef,
+ sizeof(elementRef), &elementRef);
+
+ return noErr;
+}
+
+/*
+ Returns a list of actions the given interface supports.
+ Currently implemented by getting the interface role and deciding based on that.
+*/
+static QList<QAccessible::Action> supportedPredefinedActions(const QAInterface &interface)
+{
+ QList<QAccessible::Action> actions;
+ switch (interface.role()) {
+ default:
+ // Most things can be pressed.
+ actions.append(QAccessible::Press);
+ break;
+ }
+
+ return actions;
+}
+
+/*
+ Translates a predefined QAccessible::Action to a Mac action constant.
+ Returns an empty string if the Qt Action has no mac equivalent.
+*/
+static QCFString translateAction(const QAccessible::Action action)
+{
+ switch (action) {
+ case QAccessible::Press:
+ return CFStringRef(QAXPressAction);
+ break;
+ case QAccessible::Increase:
+ return CFStringRef(QAXIncrementAction);
+ break;
+ case QAccessible::Decrease:
+ return CFStringRef(QAXDecrementAction);
+ break;
+ case QAccessible::Accept:
+ return CFStringRef(QAXConfirmAction);
+ break;
+ case QAccessible::Select:
+ return CFStringRef(QAXPickAction);
+ break;
+ case QAccessible::Cancel:
+ return CFStringRef(QAXCancelAction);
+ break;
+ default:
+ return QCFString();
+ break;
+ }
+}
+
+/*
+ Translates between a Mac action constant and a QAccessible::Action.
+ Returns QAccessible::Default action if there is no Qt predefined equivalent.
+*/
+static QAccessible::Action translateAction(const CFStringRef actionName)
+{
+ if(CFStringCompare(actionName, CFStringRef(QAXPressAction), 0) == kCFCompareEqualTo) {
+ return QAccessible::Press;
+ } else if(CFStringCompare(actionName, CFStringRef(QAXIncrementAction), 0) == kCFCompareEqualTo) {
+ return QAccessible::Increase;
+ } else if(CFStringCompare(actionName, CFStringRef(QAXDecrementAction), 0) == kCFCompareEqualTo) {
+ return QAccessible::Decrease;
+ } else if(CFStringCompare(actionName, CFStringRef(QAXConfirmAction), 0) == kCFCompareEqualTo) {
+ return QAccessible::Accept;
+ } else if(CFStringCompare(actionName, CFStringRef(QAXPickAction), 0) == kCFCompareEqualTo) {
+ return QAccessible::Select;
+ } else if(CFStringCompare(actionName, CFStringRef(QAXCancelAction), 0) == kCFCompareEqualTo) {
+ return QAccessible::Cancel;
+ } else {
+ return QAccessible::DefaultAction;
+ }
+}
+#endif // QT_MAC_USE_COCOA
+
+/*
+ Copies the translated names all supported actions for an interface into the kEventParamAccessibleActionNames
+ event parameter.
+*/
+#ifndef QT_MAC_USE_COCOA
+static OSStatus getAllActionNames(EventHandlerCallRef next_ref, EventRef event, const QAInterface &interface)
+{
+ Q_UNUSED(next_ref);
+
+ CFMutableArrayRef actions = 0;
+ GetEventParameter(event, kEventParamAccessibleActionNames, typeCFMutableArrayRef, 0,
+ sizeof(actions), 0, &actions);
+
+ // Add supported predefined actions.
+ const QList<QAccessible::Action> predefinedActions = supportedPredefinedActions(interface);
+ for (int i = 0; i < predefinedActions.count(); ++i) {
+ const QCFString action = translateAction(predefinedActions.at(i));
+ if (action != QCFString())
+ qt_mac_append_cf_uniq(actions, action);
+ }
+
+ // Add user actions
+ const int actionCount = interface.userActionCount();
+ for (int i = 0; i < actionCount; ++i) {
+ const QString actionName = interface.actionText(i, QAccessible::Name);
+ qt_mac_append_cf_uniq(actions, QCFString::toCFStringRef(actionName));
+ }
+
+ return noErr;
+}
+#endif
+
+/*
+ Handles the perforNamedAction event.
+*/
+#ifndef QT_MAC_USE_COCOA
+static OSStatus performNamedAction(EventHandlerCallRef next_ref, EventRef event, const QAInterface& interface)
+{
+ Q_UNUSED(next_ref);
+
+ CFStringRef act;
+ GetEventParameter(event, kEventParamAccessibleActionName, typeCFStringRef, 0,
+ sizeof(act), 0, &act);
+
+ const QAccessible::Action action = translateAction(act);
+
+ // Perform built-in action
+ if (action != QAccessible::DefaultAction) {
+ interface.doAction(action, QVariantList());
+ return noErr;
+ }
+
+ // Search for user-defined actions and perform it if found.
+ const int actCount = interface.userActionCount();
+ const QString qAct = QCFString::toQString(act);
+ for(int i = 0; i < actCount; i++) {
+ if(interface.actionText(i, QAccessible::Name) == qAct) {
+ interface.doAction(i, QVariantList());
+ break;
+ }
+ }
+ return noErr;
+}
+
+static OSStatus setNamedAttribute(EventHandlerCallRef next_ref, EventRef event, const QAInterface &interface)
+{
+ Q_UNUSED(next_ref);
+ Q_UNUSED(event);
+
+ CFStringRef var;
+ GetEventParameter(event, kEventParamAccessibleAttributeName, typeCFStringRef, 0,
+ sizeof(var), 0, &var);
+ if(CFStringCompare(var, CFStringRef(QAXFocusedAttribute), 0) == kCFCompareEqualTo) {
+ CFTypeRef val;
+ if(GetEventParameter(event, kEventParamAccessibleAttributeValue, typeCFTypeRef, 0,
+ sizeof(val), 0, &val) == noErr) {
+ if(CFGetTypeID(val) == CFBooleanGetTypeID() &&
+ CFEqual(static_cast<CFBooleanRef>(val), kCFBooleanTrue)) {
+ interface.doAction(QAccessible::SetFocus);
+ }
+ }
+ } else {
+ bool found = false;
+ for(int r = 0; text_bindings[r][0].qt != -1; r++) {
+ if(interface.role() == (QAccessible::Role)text_bindings[r][0].qt) {
+ for(int a = 1; text_bindings[r][a].qt != -1; a++) {
+ if(CFStringCompare(var, CFStringRef(text_bindings[r][a].mac), 0) == kCFCompareEqualTo) {
+ if(!text_bindings[r][a].settable) {
+ } else {
+ CFTypeRef val;
+ if(GetEventParameter(event, kEventParamAccessibleAttributeValue, typeCFTypeRef, 0,
+ sizeof(val), 0, &val) == noErr) {
+ if(CFGetTypeID(val) == CFStringGetTypeID())
+ interface.setText((QAccessible::Text)text_bindings[r][a].qt,
+ QCFString::toQString(static_cast<CFStringRef>(val)));
+
+ }
+ }
+ found = true;
+ break;
+ }
+ }
+ break;
+ }
+ }
+ }
+ return noErr;
+}
+
+/*
+ This is the main accessibility event handler.
+*/
+static OSStatus accessibilityEventHandler(EventHandlerCallRef next_ref, EventRef event, void *data)
+{
+ Q_UNUSED(data)
+
+ // Return if this event is not a AccessibleGetNamedAttribute event.
+ const UInt32 eclass = GetEventClass(event);
+ if (eclass != kEventClassAccessibility)
+ return eventNotHandledErr;
+
+ // Get the AXUIElementRef and QAInterface pointer
+ AXUIElementRef element = 0;
+ GetEventParameter(event, kEventParamAccessibleObject, typeCFTypeRef, 0, sizeof(element), 0, &element);
+ QAInterface interface = accessibleHierarchyManager()->lookup(element);
+ if (interface.isValid() == false)
+ return eventNotHandledErr;
+
+ const UInt32 ekind = GetEventKind(event);
+ OSStatus status = noErr;
+ switch (ekind) {
+ case kEventAccessibleGetAllAttributeNames:
+ status = getAllAttributeNames(event, interface, next_ref);
+ break;
+ case kEventAccessibleGetNamedAttribute:
+ status = getNamedAttribute(next_ref, event, interface);
+ break;
+ case kEventAccessibleIsNamedAttributeSettable:
+ status = isNamedAttributeSettable(event, interface);
+ break;
+ case kEventAccessibleGetChildAtPoint:
+ status = getChildAtPoint(next_ref, event, interface);
+ break;
+ case kEventAccessibleGetAllActionNames:
+ status = getAllActionNames(next_ref, event, interface);
+ break;
+ case kEventAccessibleGetFocusedChild:
+ status = CallNextEventHandler(next_ref, event);
+ break;
+ case kEventAccessibleSetNamedAttribute:
+ status = setNamedAttribute(next_ref, event, interface);
+ break;
+ case kEventAccessiblePerformNamedAction:
+ status = performNamedAction(next_ref, event, interface);
+ break;
+ default:
+ status = CallNextEventHandler(next_ref, event);
+ break;
+ };
+ return status;
+}
+#endif
+
+void QAccessible::initialize()
+{
+#ifndef QT_MAC_USE_COCOA
+ registerQtAccessibilityHIObjectSubclass();
+ installApplicationEventhandler();
+#endif
+}
+
+// Sets thre root object for the application
+void QAccessible::setRootObject(QObject *object)
+{
+ // Call installed root object handler if we have one
+ if (rootObjectHandler) {
+ rootObjectHandler(object);
+ return;
+ }
+
+ rootObject = object;
+}
+
+void QAccessible::cleanup()
+{
+ accessibleHierarchyManager()->reset();
+#ifndef QT_MAC_USE_COCOA
+ removeEventhandler(applicationEventHandlerUPP);
+ removeEventhandler(objectCreateEventHandlerUPP);
+ removeEventhandler(accessibilityEventHandlerUPP);
+#endif
+}
+
+void QAccessible::updateAccessibility(QObject *object, int child, Event reason)
+{
+ // Call installed update handler if we have one.
+ if (updateHandler) {
+ updateHandler(object, child, reason);
+ return;
+ }
+
+#ifndef QT_MAC_USE_COCOA
+ // Return if the mac accessibility is not enabled.
+ if(!AXAPIEnabled())
+ return;
+
+ // Work around crash, disable accessiblity for focus frames.
+ if (qstrcmp(object->metaObject()->className(), "QFocusFrame") == 0)
+ return;
+
+// qDebug() << "updateAccessibility" << object << child << hex << reason;
+
+ if (reason == ObjectShow) {
+ QAInterface interface = QAInterface(QAccessible::queryAccessibleInterface(object), child);
+ accessibleHierarchyManager()->registerInterface(interface);
+ }
+
+ const QAElement element = accessibleHierarchyManager()->lookup(object, child);
+ if (element.isValid() == false)
+ return;
+
+
+ CFStringRef notification = 0;
+ if(object && object->isWidgetType() && reason == ObjectCreated) {
+ notification = CFStringRef(QAXWindowCreatedNotification);
+ } else if(reason == ValueChanged) {
+ notification = CFStringRef(QAXValueChangedNotification);
+ } else if(reason == MenuStart) {
+ notification = CFStringRef(QAXMenuOpenedNotification);
+ } else if(reason == MenuEnd) {
+ notification = CFStringRef(QAXMenuClosedNotification);
+ } else if(reason == LocationChanged) {
+ notification = CFStringRef(QAXWindowMovedNotification);
+ } else if(reason == ObjectShow || reason == ObjectHide ) {
+ // When a widget is deleted we get a ObjectHide before the destroyed(QObject *)
+ // signal is emitted (which makes sense). However, at this point we are in the
+ // middle of the QWidget destructor which means that we have to be careful when
+ // using the widget pointer. Since we can't control what the accessibilty interfaces
+ // does when navigate() is called below we ignore the hide update in this case.
+ // (the widget will be deleted soon anyway.)
+ extern QWidgetPrivate * qt_widget_private(QWidget *);
+ if (QWidget *widget = qobject_cast<QWidget*>(object)) {
+ if (qt_widget_private(widget)->data.in_destructor)
+ return;
+
+ // Check widget parent as well, special case for preventing crash
+ // when the viewport() of an abstract scroll area is hidden when
+ // the QWidget destructor hides all its children.
+ QWidget *parentWidget = widget->parentWidget();
+ if (parentWidget && qt_widget_private(parentWidget)->data.in_destructor)
+ return;
+ }
+
+ // There is no equivalent Mac notification for ObjectShow/Hide, so we call HIObjectSetAccessibilityIgnored
+ // and isItIntersting which will mark the HIObject accociated with the element as ignored if the
+ // QAccessible::Invisible state bit is set.
+ QAInterface interface = accessibleHierarchyManager()->lookup(element);
+ if (interface.isValid()) {
+ HIObjectSetAccessibilityIgnored(element.object(), !isItInteresting(interface));
+ }
+
+ // If the interface manages its own children, also check if we should ignore those.
+ if (isItemView(interface) == false && managesChildren(interface)) {
+ for (int i = 1; i <= interface.childCount(); ++i) {
+ QAInterface childInterface = interface.navigate(QAccessible::Child, i);
+ if (childInterface.isValid() && childInterface.isHIView() == false) {
+ const QAElement element = accessibleHierarchyManager()->lookup(childInterface);
+ if (element.isValid()) {
+ HIObjectSetAccessibilityIgnored(element.object(), !isItInteresting(childInterface));
+ }
+ }
+ }
+ }
+
+ } else if(reason == Focus) {
+ if(object && object->isWidgetType()) {
+ QWidget *w = static_cast<QWidget*>(object);
+ if(w->isWindow())
+ notification = CFStringRef(QAXFocusedWindowChangedNotification);
+ else
+ notification = CFStringRef(QAXFocusedUIElementChangedNotification);
+ }
+ }
+
+ if (!notification)
+ return;
+
+ AXNotificationHIObjectNotify(notification, element.object(), element.id());
+#endif
+}
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_ACCESSIBILITY