From f67b8df3ebdba2d398b9cce686b7c644adffff08 Mon Sep 17 00:00:00 2001 From: Lars Knoll Date: Sat, 7 May 2011 00:02:01 +0200 Subject: library split --- src/widgets/accessible/qaccessible_mac_carbon.cpp | 119 ++++++++++++++++++++++ 1 file changed, 119 insertions(+) create mode 100644 src/widgets/accessible/qaccessible_mac_carbon.cpp (limited to 'src/widgets/accessible/qaccessible_mac_carbon.cpp') diff --git a/src/widgets/accessible/qaccessible_mac_carbon.cpp b/src/widgets/accessible/qaccessible_mac_carbon.cpp new file mode 100644 index 0000000000..2e8a7628e8 --- /dev/null +++ b/src/widgets/accessible/qaccessible_mac_carbon.cpp @@ -0,0 +1,119 @@ +/**************************************************************************** +** +** Copyright (C) 2011 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. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +static OSStatus applicationEventHandler(EventHandlerCallRef next_ref, EventRef event, void *data); +static EventHandlerUPP applicationEventHandlerUPP = 0; +static EventTypeSpec application_events[] = { + { kEventClassAccessibility, kEventAccessibleGetChildAtPoint }, + { kEventClassAccessibility, kEventAccessibleGetNamedAttribute } +}; + +static CFStringRef kObjectQtAccessibility = CFSTR("com.trolltech.qt.accessibility"); +static EventHandlerUPP objectCreateEventHandlerUPP = 0; +static EventTypeSpec objectCreateEvents[] = { + { kEventClassHIObject, kEventHIObjectConstruct }, + { kEventClassHIObject, kEventHIObjectInitialize }, + { kEventClassHIObject, kEventHIObjectDestruct }, + { kEventClassHIObject, kEventHIObjectPrintDebugInfo } +}; + +static OSStatus accessibilityEventHandler(EventHandlerCallRef next_ref, EventRef event, void *data); +static EventHandlerUPP accessibilityEventHandlerUPP = 0; +static EventTypeSpec accessibilityEvents[] = { + { kEventClassAccessibility, kEventAccessibleGetChildAtPoint }, + { kEventClassAccessibility, kEventAccessibleGetFocusedChild }, + { kEventClassAccessibility, kEventAccessibleGetAllAttributeNames }, + { kEventClassAccessibility, kEventAccessibleGetNamedAttribute }, + { kEventClassAccessibility, kEventAccessibleSetNamedAttribute }, + { kEventClassAccessibility, kEventAccessibleIsNamedAttributeSettable }, + { kEventClassAccessibility, kEventAccessibleGetAllActionNames }, + { kEventClassAccessibility, kEventAccessiblePerformNamedAction }, + { kEventClassAccessibility, kEventAccessibleGetNamedActionDescription } +}; + +static void installAcessibilityEventHandler(HIObjectRef hiObject) +{ + if (!accessibilityEventHandlerUPP) + accessibilityEventHandlerUPP = NewEventHandlerUPP(accessibilityEventHandler); + + InstallHIObjectEventHandler(hiObject, accessibilityEventHandlerUPP, + GetEventTypeCount(accessibilityEvents), + accessibilityEvents, 0, 0); +} + +static OSStatus objectCreateEventHandler(EventHandlerCallRef next_ref, EventRef event, void *data) +{ + Q_UNUSED(data) + Q_UNUSED(event) + Q_UNUSED(next_ref) + return noErr; +} + +static void registerQtAccessibilityHIObjectSubclass() +{ + if (!objectCreateEventHandlerUPP) + objectCreateEventHandlerUPP = NewEventHandlerUPP(objectCreateEventHandler); + OSStatus err = HIObjectRegisterSubclass(kObjectQtAccessibility, 0, 0, objectCreateEventHandlerUPP, + GetEventTypeCount(objectCreateEvents), objectCreateEvents, 0, 0); + if (err && err != hiObjectClassExistsErr) + qWarning("qaccessible_mac internal error: Could not register accessibility HIObject subclass"); +} + +static void installApplicationEventhandler() +{ + if (!applicationEventHandlerUPP) + applicationEventHandlerUPP = NewEventHandlerUPP(applicationEventHandler); + + OSStatus err = InstallApplicationEventHandler(applicationEventHandlerUPP, + GetEventTypeCount(application_events), application_events, + 0, 0); + + if (err && err != eventHandlerAlreadyInstalledErr) + qWarning("qaccessible_mac internal error: Could not install application accessibility event handler"); +} + +static void removeEventhandler(EventHandlerUPP eventHandler) +{ + if (eventHandler) { + DisposeEventHandlerUPP(eventHandler); + eventHandler = 0; + } +} -- cgit v1.2.3