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Diffstat (limited to 'src/plugins/platforms/ios/quiaccessibilityelement.mm')
| -rw-r--r-- | src/plugins/platforms/ios/quiaccessibilityelement.mm | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/src/plugins/platforms/ios/quiaccessibilityelement.mm b/src/plugins/platforms/ios/quiaccessibilityelement.mm new file mode 100644 index 0000000000..c9e9e34cbd --- /dev/null +++ b/src/plugins/platforms/ios/quiaccessibilityelement.mm @@ -0,0 +1,194 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the plugins 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 "quiaccessibilityelement.h" + +#include "private/qaccessiblecache_p.h" + +@implementation QMacAccessibilityElement + +- (id) initWithId: (QAccessible::Id) anId withAccessibilityContainer: (id) view +{ + Q_ASSERT((int)anId < 0); + self = [super initWithAccessibilityContainer: view]; + if (self) + _axid = anId; + + return self; +} + ++ (id) elementWithId: (QAccessible::Id) anId withAccessibilityContainer: (id) view +{ + Q_ASSERT(anId); + if (!anId) + return nil; + + QAccessibleCache *cache = QAccessibleCache::instance(); + + QMacAccessibilityElement *element = cache->elementForId(anId); + if (!element) { + QAccessibleInterface *iface = QAccessible::accessibleInterface(anId); + Q_ASSERT(iface); + element = [[self alloc] initWithId:anId withAccessibilityContainer: view]; + cache->insertElement(anId, element); + } + return element; +} + +- (void) invalidate +{ + [self release]; +} + +- (BOOL) isAccessibilityElement +{ + return YES; +} + +- (NSString*) accessibilityLabel +{ + QAccessibleInterface *iface = QAccessible::accessibleInterface(self.axid); + if (!iface) { + qWarning() << "invalid accessible interface for: " << self.axid; + return @""; + } + + return iface->text(QAccessible::Name).toNSString(); +} + +- (NSString*) accessibilityHint +{ + QAccessibleInterface *iface = QAccessible::accessibleInterface(self.axid); + if (!iface) { + qWarning() << "invalid accessible interface for: " << self.axid; + return @""; + } + return iface->text(QAccessible::Description).toNSString(); +} + +- (NSString*) accessibilityValue +{ + QAccessibleInterface *iface = QAccessible::accessibleInterface(self.axid); + if (!iface) { + qWarning() << "invalid accessible interface for: " << self.axid; + return @""; + } + + QAccessible::State state = iface->state(); + + if (state.checkable) + return state.checked ? @"checked" : @"unchecked"; // FIXME: translation + + QAccessibleValueInterface *val = iface->valueInterface(); + if (val) { + return val->currentValue().toString().toNSString(); + } else if (QAccessibleTextInterface *text = iface->textInterface()) { + // FIXME doesn't work? + return text->text(0, text->characterCount() - 1).toNSString(); + } + + return [super accessibilityHint]; +} + +- (CGRect) accessibilityFrame +{ + QAccessibleInterface *iface = QAccessible::accessibleInterface(self.axid); + if (!iface) { + qWarning() << "invalid accessible interface for: " << self.axid; + return CGRect(); + } + + QRect rect = iface->rect(); + return CGRectMake(rect.x(), rect.y(), rect.width(), rect.height()); +} + +- (UIAccessibilityTraits) accessibilityTraits +{ + UIAccessibilityTraits traits = UIAccessibilityTraitNone; + + QAccessibleInterface *iface = QAccessible::accessibleInterface(self.axid); + if (!iface) { + qWarning() << "invalid accessible interface for: " << self.axid; + return traits; + } + QAccessible::State state = iface->state(); + if (state.disabled) + traits |= UIAccessibilityTraitNotEnabled; + + if (iface->role() == QAccessible::Button) + traits |= UIAccessibilityTraitButton; + + if (iface->valueInterface()) + traits |= UIAccessibilityTraitAdjustable; + + return traits; +} + +- (BOOL) accessibilityActivate +{ + QAccessibleInterface *iface = QAccessible::accessibleInterface(self.axid); + if (QAccessibleActionInterface *action = iface->actionInterface()) { + if (action->actionNames().contains(QAccessibleActionInterface::pressAction())) { + action->doAction(QAccessibleActionInterface::pressAction()); + return YES; + } else if (action->actionNames().contains(QAccessibleActionInterface::showMenuAction())) { + action->doAction(QAccessibleActionInterface::showMenuAction()); + return YES; + } + } + return NO; // fall back to sending mouse clicks +} + +- (void) accessibilityIncrement +{ + QAccessibleInterface *iface = QAccessible::accessibleInterface(self.axid); + if (QAccessibleActionInterface *action = iface->actionInterface()) + action->doAction(QAccessibleActionInterface::increaseAction()); +} + +- (void) accessibilityDecrement +{ + QAccessibleInterface *iface = QAccessible::accessibleInterface(self.axid); + if (QAccessibleActionInterface *action = iface->actionInterface()) + action->doAction(QAccessibleActionInterface::decreaseAction()); +} + +@end |