| // Copyright 2010-2015, Google Inc. |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include "win32/tip/tip_candidate_list.h" |
| |
| #include <Windows.h> |
| #define _ATL_NO_AUTOMATIC_NAMESPACE |
| #define _WTL_NO_AUTOMATIC_NAMESPACE |
| #include <atlbase.h> |
| #include <atlcom.h> |
| #include <ctffunc.h> |
| |
| #include <memory> |
| #include <vector> |
| |
| #include "base/util.h" |
| #include "win32/tip/tip_ref_count.h" |
| |
| using ::ATL::CComPtr; |
| using ::std::unique_ptr; |
| |
| namespace mozc { |
| namespace win32 { |
| namespace tsf { |
| |
| namespace { |
| |
| class CandidateStringImpl : public ITfCandidateString { |
| public: |
| CandidateStringImpl(ULONG index, const wstring &value) |
| : index_(index), |
| value_(value) { |
| } |
| |
| // The IUnknown interface methods. |
| virtual HRESULT STDMETHODCALLTYPE QueryInterface(const IID &interface_id, |
| void **object) { |
| if (!object) { |
| return E_INVALIDARG; |
| } |
| |
| // Find a matching interface from the ones implemented by this object. |
| // This object implements IUnknown and ITfEditSession. |
| if (::IsEqualIID(interface_id, IID_IUnknown)) { |
| *object = static_cast<IUnknown *>(this); |
| } else if (IsEqualIID(interface_id, IID_ITfCandidateString)) { |
| *object = static_cast<ITfCandidateString *>(this); |
| } else { |
| *object = nullptr; |
| return E_NOINTERFACE; |
| } |
| |
| AddRef(); |
| return S_OK; |
| } |
| |
| virtual ULONG STDMETHODCALLTYPE AddRef() { |
| return ref_count_.AddRefImpl(); |
| } |
| |
| virtual ULONG STDMETHODCALLTYPE Release() { |
| const ULONG count = ref_count_.ReleaseImpl(); |
| if (count == 0) { |
| delete this; |
| } |
| return count; |
| } |
| |
| private: |
| // The ITfCandidateString interface methods. |
| virtual HRESULT STDMETHODCALLTYPE GetString(BSTR *str) { |
| if (str == nullptr) { |
| return E_INVALIDARG; |
| } |
| *str = ::SysAllocStringLen(value_.data(), value_.size()); |
| return S_OK; |
| } |
| |
| virtual HRESULT STDMETHODCALLTYPE GetIndex(ULONG *index) { |
| if (index == nullptr) { |
| return E_INVALIDARG; |
| } |
| *index = index_; |
| return S_OK; |
| } |
| |
| TipRefCount ref_count_; |
| const ULONG index_; |
| const wstring value_; |
| |
| DISALLOW_COPY_AND_ASSIGN(CandidateStringImpl); |
| }; |
| |
| class EnumTfCandidatesImpl : public IEnumTfCandidates { |
| public: |
| explicit EnumTfCandidatesImpl(const vector<wstring> &candidates) |
| : candidates_(candidates), |
| current_(0) { |
| } |
| |
| // The IUnknown interface methods. |
| virtual HRESULT STDMETHODCALLTYPE QueryInterface(const IID &interface_id, |
| void **object) { |
| if (!object) { |
| return E_INVALIDARG; |
| } |
| |
| // Find a matching interface from the ones implemented by this object. |
| // This object implements IUnknown and ITfEditSession. |
| if (::IsEqualIID(interface_id, IID_IUnknown)) { |
| *object = static_cast<IUnknown *>(this); |
| } else if (IsEqualIID(interface_id, IID_IEnumTfCandidates)) { |
| *object = static_cast<IEnumTfCandidates *>(this); |
| } else { |
| *object = nullptr; |
| return E_NOINTERFACE; |
| } |
| |
| AddRef(); |
| return S_OK; |
| } |
| |
| virtual ULONG STDMETHODCALLTYPE AddRef() { |
| return ref_count_.AddRefImpl(); |
| } |
| |
| virtual ULONG STDMETHODCALLTYPE Release() { |
| const ULONG count = ref_count_.ReleaseImpl(); |
| if (count == 0) { |
| delete this; |
| } |
| return count; |
| } |
| |
| private: |
| virtual HRESULT STDMETHODCALLTYPE Clone(IEnumTfCandidates **enum_candidates) { |
| if (enum_candidates == nullptr) { |
| return E_INVALIDARG; |
| } |
| *enum_candidates = new EnumTfCandidatesImpl(candidates_); |
| (*enum_candidates)->AddRef(); |
| return S_OK; |
| } |
| |
| virtual HRESULT STDMETHODCALLTYPE Next(ULONG count, |
| ITfCandidateString **candidate_string, |
| ULONG *fetched_count) { |
| if (candidate_string == nullptr) { |
| return E_INVALIDARG; |
| } |
| ULONG dummy = 0; |
| if (fetched_count == nullptr) { |
| fetched_count = &dummy; |
| } |
| const auto candidates_size = candidates_.size(); |
| *fetched_count = 0; |
| for (ULONG i = 0; i < count; ++i) { |
| if (current_ >= candidates_size) { |
| *fetched_count = i; |
| return S_FALSE; |
| } |
| candidate_string[i] = new CandidateStringImpl(current_, |
| candidates_[current_]); |
| candidate_string[i]->AddRef(); |
| ++current_; |
| } |
| *fetched_count = count; |
| return S_OK; |
| } |
| |
| virtual HRESULT STDMETHODCALLTYPE Reset() { |
| current_ = 0; |
| return S_OK; |
| } |
| |
| virtual HRESULT STDMETHODCALLTYPE Skip(ULONG count) { |
| if ((candidates_.size() - current_) < count) { |
| current_ = candidates_.size(); |
| return S_FALSE; |
| } |
| current_ += count; |
| return S_OK; |
| } |
| |
| TipRefCount ref_count_; |
| |
| vector<wstring> candidates_; |
| size_t current_; |
| |
| DISALLOW_COPY_AND_ASSIGN(EnumTfCandidatesImpl); |
| }; |
| |
| class CandidateListImpl : public ITfCandidateList { |
| public: |
| CandidateListImpl(const vector<wstring> &candidates, |
| TipCandidateListCallback *callback) |
| : candidates_(candidates), |
| callback_(callback) { |
| } |
| |
| // The IUnknown interface methods. |
| virtual HRESULT STDMETHODCALLTYPE QueryInterface(const IID &interface_id, |
| void **object) { |
| if (!object) { |
| return E_INVALIDARG; |
| } |
| |
| // Find a matching interface from the ones implemented by this object. |
| // This object implements IUnknown and ITfEditSession. |
| if (::IsEqualIID(interface_id, IID_IUnknown)) { |
| *object = static_cast<IUnknown *>(this); |
| } else if (IsEqualIID(interface_id, IID_ITfCandidateList)) { |
| *object = static_cast<ITfCandidateList *>(this); |
| } else { |
| *object = nullptr; |
| return E_NOINTERFACE; |
| } |
| |
| AddRef(); |
| return S_OK; |
| } |
| |
| virtual ULONG STDMETHODCALLTYPE AddRef() { |
| return ref_count_.AddRefImpl(); |
| } |
| |
| virtual ULONG STDMETHODCALLTYPE Release() { |
| const ULONG count = ref_count_.ReleaseImpl(); |
| if (count == 0) { |
| delete this; |
| } |
| return count; |
| } |
| |
| private: |
| // The ITfCandidateList interface methods. |
| virtual HRESULT STDMETHODCALLTYPE EnumCandidates( |
| IEnumTfCandidates **enum_candidate) { |
| if (enum_candidate == nullptr) { |
| return E_INVALIDARG; |
| } |
| *enum_candidate = new EnumTfCandidatesImpl(candidates_); |
| (*enum_candidate)->AddRef(); |
| return S_OK; |
| } |
| |
| virtual HRESULT STDMETHODCALLTYPE GetCandidate( |
| ULONG index, |
| ITfCandidateString **candidate_string) { |
| if (candidate_string == nullptr) { |
| return E_INVALIDARG; |
| } |
| if (index >= candidates_.size()) { |
| return E_FAIL; |
| } |
| *candidate_string = new CandidateStringImpl(index, candidates_[index]); |
| (*candidate_string)->AddRef(); |
| return S_OK; |
| } |
| |
| virtual HRESULT STDMETHODCALLTYPE GetCandidateNum(ULONG *count) { |
| if (count == nullptr) { |
| return E_INVALIDARG; |
| } |
| *count = static_cast<ULONG>(candidates_.size()); |
| return S_OK; |
| } |
| |
| virtual HRESULT STDMETHODCALLTYPE SetResult( |
| ULONG index, |
| TfCandidateResult candidate_result) { |
| if (candidates_.size() <= index) { |
| return E_INVALIDARG; |
| } |
| if ((candidate_result == CAND_FINALIZED) && (callback_.get() != nullptr)) { |
| callback_->OnFinalize(index, candidates_[index]); |
| callback_.reset(); |
| } |
| return S_OK; |
| } |
| |
| TipRefCount ref_count_; |
| vector<wstring> candidates_; |
| unique_ptr<TipCandidateListCallback> callback_; |
| |
| DISALLOW_COPY_AND_ASSIGN(CandidateListImpl); |
| }; |
| |
| } // namespace |
| |
| TipCandidateListCallback::~TipCandidateListCallback() { |
| } |
| |
| // static |
| ITfCandidateList *TipCandidateList::New(const vector<wstring> &candidates, |
| TipCandidateListCallback *callback) { |
| return new CandidateListImpl(candidates, callback); |
| } |
| |
| } // namespace tsf |
| } // namespace win32 |
| } // namespace mozc |