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Revert "5.6.3: qcocoaaccessibilityelement.mm original"
This reverts commit 3212d56901.
This commit is contained in:
kleuter
parent
ce626a86a5
commit
b9bebc31d5
@ -1,596 +0,0 @@
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/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the plugins of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL21$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qcocoaaccessibilityelement.h"
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#include "qcocoaaccessibility.h"
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#include "qcocoahelpers.h"
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#include "qcocoawindow.h"
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#include "private/qaccessiblecache_p.h"
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#include <QtPlatformSupport/private/qaccessiblebridgeutils_p.h>
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#include <QtGui/qaccessible.h>
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#import <AppKit/NSAccessibility.h>
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QT_USE_NAMESPACE
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#ifndef QT_NO_ACCESSIBILITY
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static void convertLineOffset(QAccessibleTextInterface *text, int *line, int *offset, NSUInteger *start = 0, NSUInteger *end = 0)
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{
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Q_ASSERT(*line == -1 || *offset == -1);
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Q_ASSERT(*line != -1 || *offset != -1);
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Q_ASSERT(*offset <= text->characterCount());
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int curLine = -1;
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int curStart = 0, curEnd = 0;
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do {
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curStart = curEnd;
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text->textAtOffset(curStart, QAccessible::LineBoundary, &curStart, &curEnd);
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// If the text is empty then we just return
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if (curStart == -1 || curEnd == -1) {
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if (start)
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*start = 0;
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if (end)
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*end = 0;
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return;
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}
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++curLine;
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{
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// check for a case where a single word longer than the text edit's width and gets wrapped
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// in the middle of the word; in this case curEnd will be an offset belonging to the next line
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// and therefore nextEnd will not be equal to curEnd
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int nextStart;
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int nextEnd;
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text->textAtOffset(curEnd, QAccessible::LineBoundary, &nextStart, &nextEnd);
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if (nextEnd == curEnd)
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++curEnd;
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}
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} while ((*line == -1 || curLine < *line) && (*offset == -1 || (curEnd <= *offset)) && curEnd <= text->characterCount());
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curEnd = qMin(curEnd, text->characterCount());
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if (*line == -1)
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*line = curLine;
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if (*offset == -1)
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*offset = curStart;
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Q_ASSERT(curStart >= 0);
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Q_ASSERT(curEnd >= 0);
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if (start)
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*start = curStart;
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if (end)
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*end = curEnd;
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}
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@implementation QMacAccessibilityElement
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- (id)initWithId:(QAccessible::Id)anId
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{
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Q_ASSERT((int)anId < 0);
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self = [super init];
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if (self) {
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axid = anId;
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QAccessibleInterface *iface = QAccessible::accessibleInterface(axid);
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Q_ASSERT(iface);
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role = QCocoaAccessible::macRole(iface);
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}
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return self;
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}
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+ (id)elementWithId:(QAccessible::Id)anId
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{
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Q_ASSERT(anId);
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if (!anId)
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return nil;
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QAccessibleCache *cache = QAccessibleCache::instance();
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QMacAccessibilityElement *element = cache->elementForId(anId);
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if (!element) {
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QAccessibleInterface *iface = QAccessible::accessibleInterface(anId);
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Q_ASSERT(iface);
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if (!iface || !iface->isValid())
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return nil;
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element = [[self alloc] initWithId:anId];
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cache->insertElement(anId, element);
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}
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return element;
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}
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- (void)invalidate {
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axid = 0;
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NSAccessibilityPostNotification(self, NSAccessibilityUIElementDestroyedNotification);
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[self release];
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}
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- (void)dealloc {
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[super dealloc];
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}
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- (BOOL)isEqual:(id)object {
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if ([object isKindOfClass:[QMacAccessibilityElement class]]) {
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QMacAccessibilityElement *other = object;
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return other->axid == axid;
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} else {
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return NO;
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}
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}
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- (NSUInteger)hash {
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return axid;
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}
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//
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// accessibility protocol
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//
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// attributes
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+ (id) lineNumberForIndex: (int)index forText:(const QString &)text
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{
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QStringRef textBefore = QStringRef(&text, 0, index);
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int newlines = textBefore.count(QLatin1Char('\n'));
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return [NSNumber numberWithInt: newlines];
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}
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- (BOOL) accessibilityNotifiesWhenDestroyed {
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return YES;
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}
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- (NSArray *)accessibilityAttributeNames {
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static NSArray *defaultAttributes = nil;
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QAccessibleInterface *iface = QAccessible::accessibleInterface(axid);
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if (!iface || !iface->isValid())
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return defaultAttributes;
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if (defaultAttributes == nil) {
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defaultAttributes = [[NSArray alloc] initWithObjects:
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NSAccessibilityRoleAttribute,
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NSAccessibilityRoleDescriptionAttribute,
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NSAccessibilitySubroleAttribute,
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NSAccessibilityChildrenAttribute,
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NSAccessibilityFocusedAttribute,
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NSAccessibilityParentAttribute,
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NSAccessibilityWindowAttribute,
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NSAccessibilityTopLevelUIElementAttribute,
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NSAccessibilityPositionAttribute,
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NSAccessibilitySizeAttribute,
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NSAccessibilityTitleAttribute,
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NSAccessibilityDescriptionAttribute,
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NSAccessibilityEnabledAttribute,
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nil];
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}
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NSMutableArray *attributes = [[NSMutableArray alloc] initWithCapacity : [defaultAttributes count]];
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[attributes addObjectsFromArray : defaultAttributes];
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if (QCocoaAccessible::hasValueAttribute(iface)) {
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[attributes addObject : NSAccessibilityValueAttribute];
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}
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if (iface->textInterface()) {
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[attributes addObjectsFromArray: [[NSArray alloc] initWithObjects:
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NSAccessibilityNumberOfCharactersAttribute,
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NSAccessibilitySelectedTextAttribute,
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NSAccessibilitySelectedTextRangeAttribute,
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NSAccessibilityVisibleCharacterRangeAttribute,
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NSAccessibilityInsertionPointLineNumberAttribute,
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nil
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]];
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// TODO: multi-selection: NSAccessibilitySelectedTextRangesAttribute,
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}
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if (iface->valueInterface()) {
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[attributes addObjectsFromArray: [[NSArray alloc] initWithObjects:
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NSAccessibilityMinValueAttribute,
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NSAccessibilityMaxValueAttribute,
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nil
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]];
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}
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return [attributes autorelease];
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}
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- (id)parentElement {
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QAccessibleInterface *iface = QAccessible::accessibleInterface(axid);
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if (!iface || !iface->isValid())
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return nil;
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if (QWindow *window = iface->window()) {
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QCocoaWindow *win = static_cast<QCocoaWindow*>(window->handle());
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return win->qtView();
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}
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QAccessibleInterface *parent = iface->parent();
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if (!parent) {
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qWarning() << "INVALID PARENT FOR INTERFACE: " << iface;
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return nil;
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}
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QAccessible::Id parentId = QAccessible::uniqueId(parent);
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return [QMacAccessibilityElement elementWithId: parentId];
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}
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- (id) minValueAttribute:(QAccessibleInterface*)iface {
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if (QAccessibleValueInterface *val = iface->valueInterface())
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return [NSNumber numberWithDouble: val->minimumValue().toDouble()];
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return nil;
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}
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- (id) maxValueAttribute:(QAccessibleInterface*)iface {
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if (QAccessibleValueInterface *val = iface->valueInterface())
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return [NSNumber numberWithDouble: val->maximumValue().toDouble()];
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return nil;
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}
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- (id)accessibilityAttributeValue:(NSString *)attribute {
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QAccessibleInterface *iface = QAccessible::accessibleInterface(axid);
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if (!iface || !iface->isValid()) {
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qWarning() << "Called attribute on invalid object: " << axid;
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return nil;
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}
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if ([attribute isEqualToString:NSAccessibilityRoleAttribute]) {
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return role;
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} else if ([attribute isEqualToString:NSAccessibilitySubroleAttribute]) {
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return QCocoaAccessible::macSubrole(iface);
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} else if ([attribute isEqualToString:NSAccessibilityRoleDescriptionAttribute]) {
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return NSAccessibilityRoleDescription(role, [self accessibilityAttributeValue:NSAccessibilitySubroleAttribute]);
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} else if ([attribute isEqualToString:NSAccessibilityChildrenAttribute]) {
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return QCocoaAccessible::unignoredChildren(iface);
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} else if ([attribute isEqualToString:NSAccessibilityFocusedAttribute]) {
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// Just check if the app thinks we're focused.
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id focusedElement = [NSApp accessibilityAttributeValue:NSAccessibilityFocusedUIElementAttribute];
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return [NSNumber numberWithBool:[focusedElement isEqual:self]];
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} else if ([attribute isEqualToString:NSAccessibilityParentAttribute]) {
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return NSAccessibilityUnignoredAncestor([self parentElement]);
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} else if ([attribute isEqualToString:NSAccessibilityWindowAttribute]) {
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// We're in the same window as our parent.
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return [[self parentElement] accessibilityAttributeValue:NSAccessibilityWindowAttribute];
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} else if ([attribute isEqualToString:NSAccessibilityTopLevelUIElementAttribute]) {
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// We're in the same top level element as our parent.
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return [[self parentElement] accessibilityAttributeValue:NSAccessibilityTopLevelUIElementAttribute];
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} else if ([attribute isEqualToString:NSAccessibilityPositionAttribute]) {
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QPoint qtPosition = iface->rect().topLeft();
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QSize qtSize = iface->rect().size();
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return [NSValue valueWithPoint: NSMakePoint(qtPosition.x(), qt_mac_flipYCoordinate(qtPosition.y() + qtSize.height()))];
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} else if ([attribute isEqualToString:NSAccessibilitySizeAttribute]) {
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QSize qtSize = iface->rect().size();
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return [NSValue valueWithSize: NSMakeSize(qtSize.width(), qtSize.height())];
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} else if ([attribute isEqualToString:NSAccessibilityTitleAttribute]) {
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return QCFString::toNSString(iface->text(QAccessible::Name));
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} else if ([attribute isEqualToString:NSAccessibilityDescriptionAttribute]) {
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return QCFString::toNSString(iface->text(QAccessible::Description));
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} else if ([attribute isEqualToString:NSAccessibilityEnabledAttribute]) {
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return [NSNumber numberWithBool:!iface->state().disabled];
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} else if ([attribute isEqualToString:NSAccessibilityValueAttribute]) {
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// VoiceOver asks for the value attribute for all elements. Return nil
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// if we don't want the element to have a value attribute.
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if (!QCocoaAccessible::hasValueAttribute(iface))
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return nil;
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return QCocoaAccessible::getValueAttribute(iface);
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} else if ([attribute isEqualToString:NSAccessibilityNumberOfCharactersAttribute]) {
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if (QAccessibleTextInterface *text = iface->textInterface())
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return [NSNumber numberWithInt: text->characterCount()];
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return nil;
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} else if ([attribute isEqualToString:NSAccessibilitySelectedTextAttribute]) {
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if (QAccessibleTextInterface *text = iface->textInterface()) {
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int start = 0;
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int end = 0;
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text->selection(0, &start, &end);
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return text->text(start, end).toNSString();
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}
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return nil;
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} else if ([attribute isEqualToString:NSAccessibilitySelectedTextRangeAttribute]) {
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if (QAccessibleTextInterface *text = iface->textInterface()) {
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int start = 0;
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int end = 0;
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if (text->selectionCount() > 0) {
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text->selection(0, &start, &end);
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} else {
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start = text->cursorPosition();
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end = start;
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}
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return [NSValue valueWithRange:NSMakeRange(quint32(start), quint32(end - start))];
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}
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return [NSValue valueWithRange: NSMakeRange(0, 0)];
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} else if ([attribute isEqualToString:NSAccessibilityVisibleCharacterRangeAttribute]) {
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// FIXME This is not correct and may impact performance for big texts
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return [NSValue valueWithRange: NSMakeRange(0, iface->textInterface()->characterCount())];
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} else if ([attribute isEqualToString:NSAccessibilityInsertionPointLineNumberAttribute]) {
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if (QAccessibleTextInterface *text = iface->textInterface()) {
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int line = 0; // true for all single line edits
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if (iface->state().multiLine) {
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int position = text->cursorPosition();
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convertLineOffset(text, &line, &position);
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}
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return [NSNumber numberWithInt: line];
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}
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return nil;
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} else if ([attribute isEqualToString:NSAccessibilityMinValueAttribute]) {
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return [self minValueAttribute:iface];
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} else if ([attribute isEqualToString:NSAccessibilityMaxValueAttribute]) {
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return [self maxValueAttribute:iface];
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}
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return nil;
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}
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- (NSArray *)accessibilityParameterizedAttributeNames {
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QAccessibleInterface *iface = QAccessible::accessibleInterface(axid);
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if (!iface || !iface->isValid()) {
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qWarning() << "Called attribute on invalid object: " << axid;
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return nil;
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}
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if (iface->textInterface()) {
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return [[NSArray alloc] initWithObjects:
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NSAccessibilityStringForRangeParameterizedAttribute,
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NSAccessibilityLineForIndexParameterizedAttribute,
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NSAccessibilityRangeForLineParameterizedAttribute,
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NSAccessibilityRangeForPositionParameterizedAttribute,
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// NSAccessibilityRangeForIndexParameterizedAttribute,
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NSAccessibilityBoundsForRangeParameterizedAttribute,
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// NSAccessibilityRTFForRangeParameterizedAttribute,
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NSAccessibilityStyleRangeForIndexParameterizedAttribute,
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NSAccessibilityAttributedStringForRangeParameterizedAttribute,
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nil
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];
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}
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return nil;
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}
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- (id)accessibilityAttributeValue:(NSString *)attribute forParameter:(id)parameter {
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QAccessibleInterface *iface = QAccessible::accessibleInterface(axid);
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if (!iface || !iface->isValid()) {
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qWarning() << "Called attribute on invalid object: " << axid;
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return nil;
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}
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if (!iface->textInterface())
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return nil;
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if ([attribute isEqualToString: NSAccessibilityStringForRangeParameterizedAttribute]) {
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NSRange range = [parameter rangeValue];
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QString text = iface->textInterface()->text(range.location, range.location + range.length);
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return text.toNSString();
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}
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if ([attribute isEqualToString: NSAccessibilityLineForIndexParameterizedAttribute]) {
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int index = [parameter intValue];
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if (index < 0 || index > iface->textInterface()->characterCount())
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return nil;
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int line = -1;
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convertLineOffset(iface->textInterface(), &line, &index);
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return [NSNumber numberWithInt:line];
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}
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if ([attribute isEqualToString: NSAccessibilityRangeForLineParameterizedAttribute]) {
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int line = [parameter intValue];
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if (line < 0)
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return nil;
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int lineOffset = -1;
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NSUInteger startOffset = 0;
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NSUInteger endOffset = 0;
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convertLineOffset(iface->textInterface(), &line, &lineOffset, &startOffset, &endOffset);
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return [NSValue valueWithRange:NSMakeRange(startOffset, endOffset - startOffset)];
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}
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if ([attribute isEqualToString: NSAccessibilityBoundsForRangeParameterizedAttribute]) {
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NSRange range = [parameter rangeValue];
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QRect firstRect = iface->textInterface()->characterRect(range.location);
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QRect rect;
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if (range.length > 0) {
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NSUInteger position = range.location + range.length - 1;
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if (position > range.location && iface->textInterface()->text(position, position + 1) == QStringLiteral("\n"))
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--position;
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QRect lastRect = iface->textInterface()->characterRect(position);
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rect = firstRect.united(lastRect);
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} else {
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rect = firstRect;
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rect.setWidth(1);
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}
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return [NSValue valueWithRect: NSMakeRect((CGFloat) rect.x(),(CGFloat) qt_mac_flipYCoordinate(rect.y() + rect.height()), rect.width(), rect.height())];
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}
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if ([attribute isEqualToString: NSAccessibilityAttributedStringForRangeParameterizedAttribute]) {
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NSRange range = [parameter rangeValue];
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QString text = iface->textInterface()->text(range.location, range.location + range.length);
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return [[NSAttributedString alloc] initWithString: text.toNSString()];
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} else if ([attribute isEqualToString: NSAccessibilityRangeForPositionParameterizedAttribute]) {
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NSPoint nsPoint = [parameter pointValue];
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QPoint point(static_cast<int>(nsPoint.x), static_cast<int>(qt_mac_flipYCoordinate(nsPoint.y)));
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int offset = iface->textInterface()->offsetAtPoint(point);
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return [NSValue valueWithRange:NSMakeRange(static_cast<NSUInteger>(offset), 1)];
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} else if ([attribute isEqualToString: NSAccessibilityStyleRangeForIndexParameterizedAttribute]) {
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int start = 0;
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int end = 0;
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iface->textInterface()->attributes([parameter intValue], &start, &end);
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return [NSValue valueWithRange:NSMakeRange(static_cast<NSUInteger>(start), static_cast<NSUInteger>(end - start))];
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}
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return nil;
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}
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- (BOOL)accessibilityIsAttributeSettable:(NSString *)attribute {
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QAccessibleInterface *iface = QAccessible::accessibleInterface(axid);
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if (!iface || !iface->isValid())
|
||||
return NO;
|
||||
|
||||
if ([attribute isEqualToString:NSAccessibilityFocusedAttribute]) {
|
||||
return iface->state().focusable ? YES : NO;
|
||||
} else if ([attribute isEqualToString:NSAccessibilityValueAttribute]) {
|
||||
if (iface->textInterface() && iface->state().editable)
|
||||
return YES;
|
||||
if (iface->valueInterface())
|
||||
return YES;
|
||||
return NO;
|
||||
} else if ([attribute isEqualToString:NSAccessibilitySelectedTextRangeAttribute]) {
|
||||
return iface->textInterface() ? YES : NO;
|
||||
}
|
||||
return NO;
|
||||
}
|
||||
|
||||
- (void)accessibilitySetValue:(id)value forAttribute:(NSString *)attribute {
|
||||
QAccessibleInterface *iface = QAccessible::accessibleInterface(axid);
|
||||
if (!iface || !iface->isValid())
|
||||
return;
|
||||
if ([attribute isEqualToString:NSAccessibilityFocusedAttribute]) {
|
||||
if (QAccessibleActionInterface *action = iface->actionInterface())
|
||||
action->doAction(QAccessibleActionInterface::setFocusAction());
|
||||
} else if ([attribute isEqualToString:NSAccessibilityValueAttribute]) {
|
||||
if (iface->textInterface()) {
|
||||
QString text = QString::fromNSString((NSString *)value);
|
||||
iface->setText(QAccessible::Value, text);
|
||||
} else if (QAccessibleValueInterface *valueIface = iface->valueInterface()) {
|
||||
double val = [value doubleValue];
|
||||
valueIface->setCurrentValue(val);
|
||||
}
|
||||
} else if ([attribute isEqualToString:NSAccessibilitySelectedTextRangeAttribute]) {
|
||||
if (QAccessibleTextInterface *text = iface->textInterface()) {
|
||||
NSRange range = [value rangeValue];
|
||||
if (range.length > 0)
|
||||
text->setSelection(0, range.location, range.location + range.length);
|
||||
else
|
||||
text->setCursorPosition(range.location);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// actions
|
||||
|
||||
- (NSArray *)accessibilityActionNames {
|
||||
NSMutableArray * nsActions = [NSMutableArray new];
|
||||
QAccessibleInterface *iface = QAccessible::accessibleInterface(axid);
|
||||
if (!iface || !iface->isValid())
|
||||
return nsActions;
|
||||
|
||||
const QStringList &supportedActionNames = QAccessibleBridgeUtils::effectiveActionNames(iface);
|
||||
foreach (const QString &qtAction, supportedActionNames) {
|
||||
NSString *nsAction = QCocoaAccessible::getTranslatedAction(qtAction);
|
||||
if (nsAction)
|
||||
[nsActions addObject : nsAction];
|
||||
}
|
||||
|
||||
return nsActions;
|
||||
}
|
||||
|
||||
- (NSString *)accessibilityActionDescription:(NSString *)action {
|
||||
QAccessibleInterface *iface = QAccessible::accessibleInterface(axid);
|
||||
if (!iface || !iface->isValid())
|
||||
return nil; // FIXME is that the right return type??
|
||||
QString qtAction = QCocoaAccessible::translateAction(action, iface);
|
||||
QString description;
|
||||
// Return a description from the action interface if this action is not known to the OS.
|
||||
if (qtAction.isEmpty()) {
|
||||
if (QAccessibleActionInterface *actionInterface = iface->actionInterface()) {
|
||||
qtAction = QString::fromNSString((NSString *)action);
|
||||
description = actionInterface->localizedActionDescription(qtAction);
|
||||
}
|
||||
} else {
|
||||
description = qAccessibleLocalizedActionDescription(qtAction);
|
||||
}
|
||||
return QCFString::toNSString(description);
|
||||
}
|
||||
|
||||
- (void)accessibilityPerformAction:(NSString *)action {
|
||||
QAccessibleInterface *iface = QAccessible::accessibleInterface(axid);
|
||||
if (iface) {
|
||||
const QString qtAction = QCocoaAccessible::translateAction(action, iface);
|
||||
QAccessibleBridgeUtils::performEffectiveAction(iface, qtAction);
|
||||
}
|
||||
}
|
||||
|
||||
// misc
|
||||
|
||||
- (BOOL)accessibilityIsIgnored {
|
||||
QAccessibleInterface *iface = QAccessible::accessibleInterface(axid);
|
||||
if (!iface || !iface->isValid())
|
||||
return true;
|
||||
return QCocoaAccessible::shouldBeIgnored(iface);
|
||||
}
|
||||
|
||||
- (id)accessibilityHitTest:(NSPoint)point {
|
||||
QAccessibleInterface *iface = QAccessible::accessibleInterface(axid);
|
||||
if (!iface || !iface->isValid()) {
|
||||
// qDebug() << "Hit test: INVALID";
|
||||
return NSAccessibilityUnignoredAncestor(self);
|
||||
}
|
||||
|
||||
int y = qt_mac_flipYCoordinate(point.y);
|
||||
QAccessibleInterface *childInterface = iface->childAt(point.x, y);
|
||||
// No child found, meaning we hit this element.
|
||||
if (!childInterface)
|
||||
return NSAccessibilityUnignoredAncestor(self);
|
||||
|
||||
// find the deepest child at the point
|
||||
QAccessibleInterface *childOfChildInterface = 0;
|
||||
do {
|
||||
childOfChildInterface = childInterface->childAt(point.x, y);
|
||||
if (childOfChildInterface)
|
||||
childInterface = childOfChildInterface;
|
||||
} while (childOfChildInterface);
|
||||
|
||||
QAccessible::Id childId = QAccessible::uniqueId(childInterface);
|
||||
// hit a child, forward to child accessible interface.
|
||||
QMacAccessibilityElement *accessibleElement = [QMacAccessibilityElement elementWithId:childId];
|
||||
if (accessibleElement)
|
||||
return NSAccessibilityUnignoredAncestor(accessibleElement);
|
||||
return NSAccessibilityUnignoredAncestor(self);
|
||||
}
|
||||
|
||||
- (id)accessibilityFocusedUIElement {
|
||||
QAccessibleInterface *iface = QAccessible::accessibleInterface(axid);
|
||||
|
||||
if (!iface || !iface->isValid()) {
|
||||
qWarning() << "FocusedUIElement for INVALID";
|
||||
return nil;
|
||||
}
|
||||
|
||||
QAccessibleInterface *childInterface = iface->focusChild();
|
||||
if (childInterface) {
|
||||
QAccessible::Id childAxid = QAccessible::uniqueId(childInterface);
|
||||
QMacAccessibilityElement *accessibleElement = [QMacAccessibilityElement elementWithId:childAxid];
|
||||
return NSAccessibilityUnignoredAncestor(accessibleElement);
|
||||
}
|
||||
|
||||
return NSAccessibilityUnignoredAncestor(self);
|
||||
}
|
||||
|
||||
@end
|
||||
|
||||
#endif // QT_NO_ACCESSIBILITY
|
||||
Loading…
Reference in New Issue
Block a user