| /* |
| * Copyright (C) 2003, 2004, 2005, 2006, 2008 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 COMPUTER, 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 COMPUTER, 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 "AXObjectCache.h" |
| |
| #if HAVE(ACCESSIBILITY) |
| |
| #import "AccessibilityObject.h" |
| #import "AccessibilityObjectWrapper.h" |
| #import "RenderObject.h" |
| #import "WebCoreSystemInterface.h" |
| |
| #import <wtf/PassRefPtr.h> |
| |
| #ifndef NSAccessibilityLiveRegionChangedNotification |
| #define NSAccessibilityLiveRegionChangedNotification @"AXLiveRegionChanged" |
| #endif |
| |
| // The simple Cocoa calls in this file don't throw exceptions. |
| |
| namespace WebCore { |
| |
| void AXObjectCache::detachWrapper(AccessibilityObject* obj) |
| { |
| [obj->wrapper() detach]; |
| [obj->wrapper() release]; |
| obj->setWrapper(0); |
| } |
| |
| void AXObjectCache::attachWrapper(AccessibilityObject* obj) |
| { |
| obj->setWrapper([[AccessibilityObjectWrapper alloc] initWithAccessibilityObject:obj]); |
| } |
| |
| void AXObjectCache::postPlatformNotification(AccessibilityObject* obj, AXNotification notification) |
| { |
| if (!obj) |
| return; |
| |
| // Some notifications are unique to Safari and do not have NSAccessibility equivalents. |
| String macNotification; |
| switch (notification) { |
| case AXActiveDescendantChanged: |
| // An active descendant change for trees means a selected rows change. |
| if (obj->isTree()) |
| macNotification = NSAccessibilitySelectedRowsChangedNotification; |
| else |
| macNotification = NSAccessibilityFocusedUIElementChangedNotification; |
| break; |
| case AXAutocorrectionOccured: |
| #if !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD) && !defined(BUILDING_ON_SNOW_LEOPARD) |
| macNotification = @"AXAutocorrectionOccurred"; |
| break; |
| #else |
| return; |
| #endif |
| case AXFocusedUIElementChanged: |
| macNotification = NSAccessibilityFocusedUIElementChangedNotification; |
| break; |
| case AXLayoutComplete: |
| macNotification = "AXLayoutComplete"; |
| break; |
| case AXLoadComplete: |
| macNotification = "AXLoadComplete"; |
| break; |
| case AXInvalidStatusChanged: |
| macNotification = "AXInvalidStatusChanged"; |
| break; |
| case AXSelectedChildrenChanged: |
| macNotification = NSAccessibilitySelectedChildrenChangedNotification; |
| break; |
| case AXSelectedTextChanged: |
| macNotification = NSAccessibilitySelectedTextChangedNotification; |
| break; |
| case AXValueChanged: |
| macNotification = NSAccessibilityValueChangedNotification; |
| break; |
| case AXLiveRegionChanged: |
| macNotification = NSAccessibilityLiveRegionChangedNotification; |
| break; |
| case AXRowCountChanged: |
| macNotification = NSAccessibilityRowCountChangedNotification; |
| break; |
| #if !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD) |
| case AXRowExpanded: |
| macNotification = NSAccessibilityRowExpandedNotification; |
| break; |
| case AXRowCollapsed: |
| macNotification = NSAccessibilityRowCollapsedNotification; |
| break; |
| #endif |
| // Does not exist on Mac. |
| case AXCheckedStateChanged: |
| default: |
| return; |
| } |
| |
| // NSAccessibilityPostNotification will call this method, (but not when running DRT), so ASSERT here to make sure it does not crash. |
| // https://bugs.webkit.org/show_bug.cgi?id=46662 |
| ASSERT([obj->wrapper() accessibilityIsIgnored] || true); |
| |
| NSAccessibilityPostNotification(obj->wrapper(), macNotification); |
| |
| // Used by DRT to know when notifications are posted. |
| [obj->wrapper() accessibilityPostedNotification:macNotification]; |
| } |
| |
| void AXObjectCache::nodeTextChangePlatformNotification(AccessibilityObject*, AXTextChange, unsigned, unsigned) |
| { |
| } |
| |
| void AXObjectCache::handleFocusedUIElementChanged(RenderObject*, RenderObject*) |
| { |
| wkAccessibilityHandleFocusChanged(); |
| } |
| |
| void AXObjectCache::handleScrolledToAnchor(const Node*) |
| { |
| } |
| |
| } |
| |
| #endif // HAVE(ACCESSIBILITY) |