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 AccessibleBase_h 27 #define AccessibleBase_h 28 29 #include <WebCore/AccessibilityObject.h> 30 #include <WebCore/AccessibilityObjectWrapperWin.h> 31 #include <WebKit/WebKit.h> 32 #include <oleacc.h> 33 34 class DECLSPEC_UUID("3dbd565b-db22-4d88-8e0e-778bde54524a") AccessibleBase : public IAccessibleComparable, public IServiceProvider, public WebCore::AccessibilityObjectWrapper { 35 public: 36 static AccessibleBase* createInstance(WebCore::AccessibilityObject*); 37 38 // IServiceProvider 39 virtual HRESULT STDMETHODCALLTYPE QueryService(REFGUID guidService, REFIID riid, void **ppv); 40 41 // IUnknown 42 virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject); AddRef(void)43 virtual ULONG STDMETHODCALLTYPE AddRef(void) { return ++m_refCount; } 44 virtual ULONG STDMETHODCALLTYPE Release(void); 45 46 // IAccessible 47 virtual HRESULT STDMETHODCALLTYPE get_accParent(IDispatch**); 48 virtual HRESULT STDMETHODCALLTYPE get_accChildCount(long*); 49 virtual HRESULT STDMETHODCALLTYPE get_accChild(VARIANT vChild, IDispatch** ppChild); 50 virtual HRESULT STDMETHODCALLTYPE get_accName(VARIANT vChild, BSTR*); 51 virtual HRESULT STDMETHODCALLTYPE get_accValue(VARIANT vChild, BSTR*); 52 virtual HRESULT STDMETHODCALLTYPE get_accDescription(VARIANT, BSTR*); 53 virtual HRESULT STDMETHODCALLTYPE get_accRole(VARIANT vChild, VARIANT* pvRole); 54 virtual HRESULT STDMETHODCALLTYPE get_accState(VARIANT vChild, VARIANT* pvState); 55 virtual HRESULT STDMETHODCALLTYPE get_accHelp(VARIANT vChild, BSTR* helpText); 56 virtual HRESULT STDMETHODCALLTYPE get_accKeyboardShortcut(VARIANT vChild, BSTR*); 57 virtual HRESULT STDMETHODCALLTYPE get_accFocus(VARIANT* pvFocusedChild); 58 virtual HRESULT STDMETHODCALLTYPE get_accSelection(VARIANT* pvSelectedChild); 59 virtual HRESULT STDMETHODCALLTYPE get_accDefaultAction(VARIANT vChild, BSTR* actionDescription); 60 virtual HRESULT STDMETHODCALLTYPE accSelect(long selectionFlags, VARIANT vChild); 61 virtual HRESULT STDMETHODCALLTYPE accLocation(long* left, long* top, long* width, long* height, VARIANT vChild); 62 virtual HRESULT STDMETHODCALLTYPE accNavigate(long direction, VARIANT vFromChild, VARIANT* pvNavigatedTo); 63 virtual HRESULT STDMETHODCALLTYPE accHitTest(long x, long y, VARIANT* pvChildAtPoint); 64 virtual HRESULT STDMETHODCALLTYPE accDoDefaultAction(VARIANT vChild); 65 66 // IAccessible - Not to be implemented. put_accName(VARIANT,BSTR)67 virtual HRESULT STDMETHODCALLTYPE put_accName(VARIANT, BSTR) { return E_NOTIMPL; } put_accValue(VARIANT,BSTR)68 virtual HRESULT STDMETHODCALLTYPE put_accValue(VARIANT, BSTR) { return E_NOTIMPL; } get_accHelpTopic(BSTR * helpFile,VARIANT,long * topicID)69 virtual HRESULT STDMETHODCALLTYPE get_accHelpTopic(BSTR* helpFile, VARIANT, long* topicID) 70 { 71 *helpFile = 0; 72 *topicID = 0; 73 return E_NOTIMPL; 74 } 75 76 // IDispatch - Not to be implemented. GetTypeInfoCount(UINT * count)77 virtual HRESULT STDMETHODCALLTYPE GetTypeInfoCount(UINT* count) 78 { 79 *count = 0; 80 return E_NOTIMPL; 81 } GetTypeInfo(UINT,LCID,ITypeInfo ** ppTInfo)82 virtual HRESULT STDMETHODCALLTYPE GetTypeInfo(UINT, LCID, ITypeInfo** ppTInfo) 83 { 84 *ppTInfo = 0; 85 return E_NOTIMPL; 86 } GetIDsOfNames(REFIID,LPOLESTR *,UINT,LCID,DISPID *)87 virtual HRESULT STDMETHODCALLTYPE GetIDsOfNames(REFIID, LPOLESTR*, UINT, LCID, DISPID*) { return E_NOTIMPL; } Invoke(DISPID,REFIID,LCID,WORD,DISPPARAMS *,VARIANT *,EXCEPINFO *,UINT *)88 virtual HRESULT STDMETHODCALLTYPE Invoke(DISPID, REFIID, LCID, WORD, DISPPARAMS*, VARIANT*, EXCEPINFO*, UINT*) { return E_NOTIMPL; } 89 90 // WebCore::AccessiblityObjectWrapper detach()91 virtual void detach() { 92 ASSERT(m_object); 93 m_object = 0; 94 } 95 96 // IAccessibleComparable 97 virtual HRESULT STDMETHODCALLTYPE isSameObject(IAccessibleComparable* other, BOOL* result); 98 99 protected: 100 AccessibleBase(WebCore::AccessibilityObject*); 101 virtual ~AccessibleBase(); 102 103 virtual WebCore::String name() const; 104 virtual WebCore::String value() const; 105 virtual long role() const; 106 107 HRESULT getAccessibilityObjectForChild(VARIANT vChild, WebCore::AccessibilityObject*&) const; 108 109 static AccessibleBase* wrapper(WebCore::AccessibilityObject*); 110 111 int m_refCount; 112 113 private: AccessibleBase()114 AccessibleBase() { } 115 }; 116 117 #endif // AccessibleBase_h 118 119