1 /* 2 * Copyright (C) 2008, 2009, 2010 Apple Inc. All Rights Reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef AccessibilityController_h 27 #define AccessibilityController_h 28 29 #include "AccessibilityUIElement.h" 30 #include <JavaScriptCore/JSObjectRef.h> 31 #include <string> 32 #include <wtf/HashMap.h> 33 #include <wtf/Platform.h> 34 #if PLATFORM(WIN) 35 #include <windows.h> 36 #endif 37 38 class AccessibilityController { 39 public: 40 AccessibilityController(); 41 ~AccessibilityController(); 42 43 void makeWindowObject(JSContextRef context, JSObjectRef windowObject, JSValueRef* exception); 44 45 // Controller Methods - platform-independent implementations 46 AccessibilityUIElement rootElement(); 47 AccessibilityUIElement focusedElement(); 48 AccessibilityUIElement elementAtPoint(int x, int y); 49 50 void setLogFocusEvents(bool); 51 void setLogValueChangeEvents(bool); 52 void setLogScrollingStartEvents(bool); 53 void setLogAccessibilityEvents(bool); 54 55 void resetToConsistentState(); 56 57 void addNotificationListener(PlatformUIElement, JSObjectRef functionCallback); 58 void notificationReceived(PlatformUIElement, const std::string& eventName); 59 60 private: 61 static JSClassRef getJSClass(); 62 63 #if PLATFORM(WIN) 64 HWINEVENTHOOK m_focusEventHook; 65 HWINEVENTHOOK m_valueChangeEventHook; 66 HWINEVENTHOOK m_scrollingStartEventHook; 67 68 HWINEVENTHOOK m_allEventsHook; 69 HashMap<PlatformUIElement, JSObjectRef> m_notificationListeners; 70 #endif 71 }; 72 73 #endif // AccessibilityController_h 74