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| 1 // Copyright (c) 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: |
| 27 InputScopeImpl() {} |
| 28 |
| 29 BEGIN_COM_MAP(InputScopeImpl) |
| 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: |
| 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 } |
| 52 STDMETHOD(GetPhrase)(BSTR** phrases, UINT* count) OVERRIDE { |
| 53 return E_NOTIMPL; |
| 54 } |
| 55 STDMETHOD(GetRegularExpression)(BSTR* regexp) OVERRIDE { |
| 56 return E_NOTIMPL; |
| 57 } |
| 58 STDMETHOD(GetSRGS)(BSTR* srgs) OVERRIDE { |
| 59 return E_NOTIMPL; |
| 60 } |
| 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> |
| 74 CreteInputScope(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 |
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