1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 #ifndef UI_BASE_WIN_ACCESSIBILITY_MISC_UTILS_H_ 5 #define UI_BASE_WIN_ACCESSIBILITY_MISC_UTILS_H_ 6 7 #include <atlbase.h> 8 #include <atlcom.h> 9 #include <UIAutomationCore.h> 10 11 #include "base/compiler_specific.h" 12 #include "ui/base/ui_export.h" 13 14 namespace base { 15 namespace win { 16 17 // UIA Text provider implementation for edit controls. 18 class UI_EXPORT UIATextProvider NON_EXPORTED_BASE(CComObjectRootEx<CComMultiThreadModel>)19 : public NON_EXPORTED_BASE(CComObjectRootEx<CComMultiThreadModel>), 20 public IValueProvider, 21 public ITextProvider { 22 public: 23 BEGIN_COM_MAP(UIATextProvider) 24 COM_INTERFACE_ENTRY2(IUnknown, ITextProvider) 25 COM_INTERFACE_ENTRY(IValueProvider) 26 COM_INTERFACE_ENTRY(ITextProvider) 27 END_COM_MAP() 28 29 UIATextProvider(); 30 31 // Creates an instance of the UIATextProvider class. 32 // Returns true on success 33 static bool CreateTextProvider(bool editable, IUnknown** provider); 34 35 void set_editable(bool editable) { 36 editable_ = editable; 37 } 38 39 // 40 // IValueProvider methods. 41 // 42 STDMETHOD(get_IsReadOnly)(BOOL* read_only); 43 44 // 45 // IValueProvider methods not implemented. 46 // 47 STDMETHOD(SetValue)(const wchar_t* val) { 48 return E_NOTIMPL; 49 } 50 51 STDMETHOD(get_Value)(BSTR* value) { 52 return E_NOTIMPL; 53 } 54 55 // 56 // ITextProvider methods. 57 // 58 STDMETHOD(GetSelection)(SAFEARRAY** ret) { 59 return E_NOTIMPL; 60 } 61 62 STDMETHOD(GetVisibleRanges)(SAFEARRAY** ret) { 63 return E_NOTIMPL; 64 } 65 66 STDMETHOD(RangeFromChild)(IRawElementProviderSimple* child, 67 ITextRangeProvider** ret) { 68 return E_NOTIMPL; 69 } 70 71 STDMETHOD(RangeFromPoint)(struct UiaPoint point, 72 ITextRangeProvider** ret) { 73 return E_NOTIMPL; 74 } 75 76 STDMETHOD(get_DocumentRange)(ITextRangeProvider** ret) { 77 return E_NOTIMPL; 78 } 79 80 STDMETHOD(get_SupportedTextSelection)(enum SupportedTextSelection* ret) { 81 return E_NOTIMPL; 82 } 83 84 private: 85 bool editable_; 86 }; 87 88 } // win 89 } // base 90 91 #endif // UI_BASE_WIN_ACCESSIBILITY_MISC_UTILS_H_ 92