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 "base/strings/string16.h" 13 #include "ui/base/ui_base_export.h" 14 15 namespace base { 16 namespace win { 17 18 // UIA Text provider implementation for edit controls. 19 class UI_BASE_EXPORT UIATextProvider NON_EXPORTED_BASE(CComObjectRootEx<CComMultiThreadModel>)20 : public NON_EXPORTED_BASE(CComObjectRootEx<CComMultiThreadModel>), 21 public IValueProvider, 22 public ITextProvider { 23 public: 24 BEGIN_COM_MAP(UIATextProvider) 25 COM_INTERFACE_ENTRY2(IUnknown, ITextProvider) 26 COM_INTERFACE_ENTRY(IValueProvider) 27 COM_INTERFACE_ENTRY(ITextProvider) 28 END_COM_MAP() 29 30 UIATextProvider(); 31 32 // Creates an instance of the UIATextProvider class. 33 // Returns true on success 34 static bool CreateTextProvider(const string16& value, 35 bool editable, 36 IUnknown** provider); 37 38 void set_editable(bool editable) { 39 editable_ = editable; 40 } 41 42 void set_value(const string16& value) { value_ = value; } 43 44 // 45 // IValueProvider methods. 46 // 47 STDMETHOD(get_IsReadOnly)(BOOL* read_only); 48 49 // 50 // IValueProvider methods not implemented. 51 // 52 STDMETHOD(SetValue)(const wchar_t* val) { 53 return E_NOTIMPL; 54 } 55 56 STDMETHOD(get_Value)(BSTR* value); 57 58 // 59 // ITextProvider methods. 60 // 61 STDMETHOD(GetSelection)(SAFEARRAY** ret) { 62 return E_NOTIMPL; 63 } 64 65 STDMETHOD(GetVisibleRanges)(SAFEARRAY** ret) { 66 return E_NOTIMPL; 67 } 68 69 STDMETHOD(RangeFromChild)(IRawElementProviderSimple* child, 70 ITextRangeProvider** ret) { 71 return E_NOTIMPL; 72 } 73 74 STDMETHOD(RangeFromPoint)(struct UiaPoint point, 75 ITextRangeProvider** ret) { 76 return E_NOTIMPL; 77 } 78 79 STDMETHOD(get_DocumentRange)(ITextRangeProvider** ret) { 80 return E_NOTIMPL; 81 } 82 83 STDMETHOD(get_SupportedTextSelection)(enum SupportedTextSelection* ret) { 84 return E_NOTIMPL; 85 } 86 87 private: 88 bool editable_; 89 string16 value_; 90 }; 91 92 } // win 93 } // base 94 95 #endif // UI_BASE_WIN_ACCESSIBILITY_MISC_UTILS_H_ 96