diff options
Diffstat (limited to 'src/platformsupport')
4 files changed, 188 insertions, 0 deletions
diff --git a/src/platformsupport/accessibility/accessibility.pri b/src/platformsupport/accessibility/accessibility.pri new file mode 100644 index 0000000000..d63cd9656b --- /dev/null +++ b/src/platformsupport/accessibility/accessibility.pri @@ -0,0 +1,7 @@ +INCLUDEPATH += $$PWD + +HEADERS += \ + $$PWD/qaccessiblebridgeutils_p.h + +SOURCES += \ + $$PWD/qaccessiblebridgeutils.cpp diff --git a/src/platformsupport/accessibility/qaccessiblebridgeutils.cpp b/src/platformsupport/accessibility/qaccessiblebridgeutils.cpp new file mode 100644 index 0000000000..7140bb6e2d --- /dev/null +++ b/src/platformsupport/accessibility/qaccessiblebridgeutils.cpp @@ -0,0 +1,119 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ +#include "qaccessiblebridgeutils_p.h" +#include <QtCore/qmath.h> + +#ifndef QT_NO_ACCESSIBILITY + +QT_BEGIN_NAMESPACE + +namespace QAccessibleBridgeUtils { + +static bool performAction(QAccessibleInterface *iface, const QString &actionName) +{ + if (QAccessibleActionInterface *actionIface = iface->actionInterface()) { + if (actionIface->actionNames().contains(actionName)) { + actionIface->doAction(actionName); + return true; + } + } + return false; +} + +QStringList effectiveActionNames(QAccessibleInterface *iface) +{ + QStringList actions; + if (QAccessibleActionInterface *actionIface = iface->actionInterface()) + actions = actionIface->actionNames(); + + if (iface->valueInterface()) { + if (!actions.contains(QAccessibleActionInterface::increaseAction())) + actions << QAccessibleActionInterface::increaseAction(); + if (!actions.contains(QAccessibleActionInterface::decreaseAction())) + actions << QAccessibleActionInterface::decreaseAction(); + } + return actions; +} + +bool performEffectiveAction(QAccessibleInterface *iface, const QString &actionName) +{ + if (!iface) + return false; + if (performAction(iface, actionName)) + return true; + if (actionName != QAccessibleActionInterface::increaseAction() + && actionName != QAccessibleActionInterface::decreaseAction()) + return false; + + QAccessibleValueInterface *valueIface = iface->valueInterface(); + if (!valueIface) + return false; + bool success; + const QVariant currentVariant = valueIface->currentValue(); + double stepSize = valueIface->minimumStepSize().toDouble(&success); + if (!success || qFuzzyIsNull(stepSize)) { + const double min = valueIface->minimumValue().toDouble(&success); + if (!success) + return false; + const double max = valueIface->maximumValue().toDouble(&success); + if (!success) + return false; + stepSize = (max - min) / 10; // this is pretty arbitrary, we just need to provide something + const int typ = currentVariant.type(); + if (typ != QMetaType::Float && typ != QMetaType::Double) { + // currentValue is an integer. Round it up to ensure stepping in case it was below 1 + stepSize = qCeil(stepSize); + } + } + const double current = currentVariant.toDouble(&success); + if (!success) + return false; + if (actionName == QAccessibleActionInterface::decreaseAction()) + stepSize = -stepSize; + valueIface->setCurrentValue(current + stepSize); + return true; +} + +} //namespace + +QT_END_NAMESPACE + +#endif diff --git a/src/platformsupport/accessibility/qaccessiblebridgeutils_p.h b/src/platformsupport/accessibility/qaccessiblebridgeutils_p.h new file mode 100644 index 0000000000..d05934b844 --- /dev/null +++ b/src/platformsupport/accessibility/qaccessiblebridgeutils_p.h @@ -0,0 +1,61 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QACCESSIBLEBRIDGEUTILS_H +#define QACCESSIBLEBRIDGEUTILS_H + +#ifndef QT_NO_ACCESSIBILITY + +#include <QtCore/qstringlist.h> +#include <QtGui/qaccessible.h> + +QT_BEGIN_NAMESPACE + +namespace QAccessibleBridgeUtils { + QStringList effectiveActionNames(QAccessibleInterface *iface); + bool performEffectiveAction(QAccessibleInterface *iface, const QString &actionName); +} + +QT_END_NAMESPACE + +#endif + +#endif //QACCESSIBLEBRIDGEUTILS_H diff --git a/src/platformsupport/platformsupport.pro b/src/platformsupport/platformsupport.pro index 5b4d2b1fb3..32ce2e3887 100644 --- a/src/platformsupport/platformsupport.pro +++ b/src/platformsupport/platformsupport.pro @@ -18,6 +18,7 @@ include(input/input.pri) include(devicediscovery/devicediscovery.pri) include(services/services.pri) include(themes/themes.pri) +include(accessibility/accessibility.pri) include(linuxaccessibility/linuxaccessibility.pri) include(clipboard/clipboard.pri) |