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-/*
- * Copyright (C) 2008, 2009, 2010 Apple Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#import "config.h"
-#import "DumpRenderTree.h"
-#import "AccessibilityController.h"
-
-#import "AccessibilityCommonMac.h"
-#import "AccessibilityNotificationHandler.h"
-#import "AccessibilityUIElement.h"
-#import <AppKit/NSColor.h>
-#import <Foundation/Foundation.h>
-#import <JavaScriptCore/JSStringRef.h>
-#import <JavaScriptCore/JSStringRefCF.h>
-#import <WebKit/WebFrame.h>
-#import <WebKit/WebFramePrivate.h>
-#import <WebKit/WebHTMLView.h>
-
-AccessibilityController::AccessibilityController()
-{
-}
-
-AccessibilityController::~AccessibilityController()
-{
- // The notification handler should be nil because removeNotificationListener() should have been called in the test.
- ASSERT(!m_globalNotificationHandler);
-}
-
-AccessibilityUIElement AccessibilityController::elementAtPoint(int x, int y)
-{
- id accessibilityObject = [[[mainFrame frameView] documentView] accessibilityHitTest:NSMakePoint(x, y)];
- return AccessibilityUIElement(accessibilityObject);
-}
-
-AccessibilityUIElement AccessibilityController::focusedElement()
-{
- id accessibilityObject = [[mainFrame accessibilityRoot] accessibilityFocusedUIElement];
- return AccessibilityUIElement(accessibilityObject);
-}
-
-AccessibilityUIElement AccessibilityController::rootElement()
-{
- // FIXME: we could do some caching here.
-
- // Layout tests expect that the root element will be the scroll area
- // containing the web area object. That will be the parent of the accessibilityRoot on WK1.
-
- id accessibilityObject = [[mainFrame accessibilityRoot] accessibilityAttributeValue:NSAccessibilityParentAttribute];
- return AccessibilityUIElement(accessibilityObject);
-}
-
-static id findAccessibleObjectById(id obj, NSString *idAttribute)
-{
- BEGIN_AX_OBJC_EXCEPTIONS
- id objIdAttribute = [obj accessibilityAttributeValue:@"AXDRTElementIdAttribute"];
- if ([objIdAttribute isKindOfClass:[NSString class]] && [objIdAttribute isEqualToString:idAttribute])
- return obj;
- END_AX_OBJC_EXCEPTIONS
-
- BEGIN_AX_OBJC_EXCEPTIONS
- NSArray *children = [obj accessibilityAttributeValue:NSAccessibilityChildrenAttribute];
- NSUInteger childrenCount = [children count];
- for (NSUInteger i = 0; i < childrenCount; ++i) {
- id result = findAccessibleObjectById([children objectAtIndex:i], idAttribute);
- if (result)
- return result;
- }
- END_AX_OBJC_EXCEPTIONS
-
- return 0;
-}
-
-AccessibilityUIElement AccessibilityController::accessibleElementById(JSStringRef idAttributeRef)
-{
- NSString *idAttribute = [NSString stringWithJSStringRef:idAttributeRef];
- id root = [[mainFrame accessibilityRoot] accessibilityAttributeValue:NSAccessibilityParentAttribute];
- id result = findAccessibleObjectById(root, idAttribute);
- if (result)
- return AccessibilityUIElement(result);
-
- return 0;
-}
-
-void AccessibilityController::setLogFocusEvents(bool)
-{
-}
-
-void AccessibilityController::setLogScrollingStartEvents(bool)
-{
-}
-
-void AccessibilityController::setLogValueChangeEvents(bool)
-{
-}
-
-void AccessibilityController::setLogAccessibilityEvents(bool)
-{
-}
-
-bool AccessibilityController::addNotificationListener(JSObjectRef functionCallback)
-{
- if (!functionCallback)
- return false;
-
- // Mac programmers should not be adding more than one global notification listener.
- // Other platforms may be different.
- if (m_globalNotificationHandler)
- return false;
- m_globalNotificationHandler = [[AccessibilityNotificationHandler alloc] init];
- [m_globalNotificationHandler.get() setCallback:functionCallback];
- [m_globalNotificationHandler.get() startObserving];
-
- return true;
-}
-
-void AccessibilityController::removeNotificationListener()
-{
- // Mac programmers should not be trying to remove a listener that's already removed.
- ASSERT(m_globalNotificationHandler);
- m_globalNotificationHandler.clear();
-}