1 // Copyright 2013 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 5 #include "win8/metro_driver/ime/input_scope.h" 6 7 #include <atlbase.h> 8 #include <atlcom.h> 9 10 #include "base/logging.h" 11 #include "ui/base/win/atl_module.h" 12 13 namespace metro_driver { 14 namespace { 15 16 // An implementation of ITfInputScope interface. 17 // This implementation only covers ITfInputScope::GetInputScopes since built-in 18 // on-screen keyboard on Windows 8+ changes its layout depending on the returned 19 // value of this method. 20 // Although other advanced features of ITfInputScope such as phase list or 21 // regex support might be useful for IMEs or on-screen keyboards in future, 22 // no IME seems to be utilizing such features as of Windows 8.1. 23 class ATL_NO_VTABLE InputScopeImpl 24 : public CComObjectRootEx<CComMultiThreadModel>, 25 public ITfInputScope { 26 public: InputScopeImpl()27 InputScopeImpl() {} 28 29 BEGIN_COM_MAP(InputScopeImpl) COM_INTERFACE_ENTRY(ITfInputScope)30 COM_INTERFACE_ENTRY(ITfInputScope) 31 END_COM_MAP() 32 33 void Initialize(const std::vector<InputScope>& input_scopes) { 34 input_scopes_ = input_scopes; 35 } 36 37 private: 38 // ITfInputScope overrides: STDMETHOD(GetInputScopes)39 STDMETHOD(GetInputScopes)(InputScope** input_scopes, UINT* count) OVERRIDE { 40 if (!count || !input_scopes) 41 return E_INVALIDARG; 42 *input_scopes = static_cast<InputScope*>( 43 CoTaskMemAlloc(sizeof(InputScope) * input_scopes_.size())); 44 if (!input_scopes) { 45 *count = 0; 46 return E_OUTOFMEMORY; 47 } 48 std::copy(input_scopes_.begin(), input_scopes_.end(), *input_scopes); 49 *count = static_cast<UINT>(input_scopes_.size()); 50 return S_OK; 51 } STDMETHOD(GetPhrase)52 STDMETHOD(GetPhrase)(BSTR** phrases, UINT* count) OVERRIDE { 53 return E_NOTIMPL; 54 } STDMETHOD(GetRegularExpression)55 STDMETHOD(GetRegularExpression)(BSTR* regexp) OVERRIDE { 56 return E_NOTIMPL; 57 } STDMETHOD(GetSRGS)58 STDMETHOD(GetSRGS)(BSTR* srgs) OVERRIDE { 59 return E_NOTIMPL; 60 } STDMETHOD(GetXML)61 STDMETHOD(GetXML)(BSTR* xml) OVERRIDE { 62 return E_NOTIMPL; 63 } 64 65 // Data which ITfInputScope::GetInputScopes should return. 66 std::vector<InputScope> input_scopes_; 67 68 DISALLOW_COPY_AND_ASSIGN(InputScopeImpl); 69 }; 70 71 } // namespace 72 73 base::win::ScopedComPtr<ITfInputScope> CreteInputScope(const std::vector<InputScope> & input_scopes)74CreteInputScope(const std::vector<InputScope>& input_scopes) { 75 ui::win::CreateATLModuleIfNeeded(); 76 CComObject<InputScopeImpl>* object = NULL; 77 HRESULT hr = CComObject<InputScopeImpl>::CreateInstance(&object); 78 if (FAILED(hr)) { 79 LOG(ERROR) << "CComObject<InputScopeImpl>::CreateInstance failed. hr = " 80 << hr; 81 return base::win::ScopedComPtr<ITfInputScope>(); 82 } 83 object->Initialize(input_scopes); 84 return base::win::ScopedComPtr<ITfInputScope>(object); 85 } 86 87 } // namespace metro_driver 88