First commit.

SearchCandidateProvider.cpp

@@ -0,0 +1,210 @@
+// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
+// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
+// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
+// PARTICULAR PURPOSE.
+//
+// Copyright (c) Microsoft Corporation. All rights reserved
+
+#include "private.h"
+#include "SearchCandidateProvider.h"
+#include <new>
+#include "SampleIME.h"
+#include "CompositionProcessorEngine.h"
+#include "TipCandidateList.h"
+#include "TipCandidateString.h"
+
+/*------------------------------------------------------------------------------
+
+create instance of CSearchCandidateProvider
+
+------------------------------------------------------------------------------*/
+HRESULT CSearchCandidateProvider::CreateInstance(_Outptr_ ITfFnSearchCandidateProvider **ppobj, _In_ ITfTextInputProcessorEx *ptip)
+{  
+    if (ppobj == nullptr)
+    {
+        return E_INVALIDARG;
+    }
+    *ppobj = nullptr;
+
+    *ppobj = new (std::nothrow) CSearchCandidateProvider(ptip);
+    if (nullptr == *ppobj)
+    {
+        return E_OUTOFMEMORY;
+    }
+
+    return S_OK;
+}
+
+/*------------------------------------------------------------------------------
+
+create instance of CSearchCandidateProvider
+
+------------------------------------------------------------------------------*/
+HRESULT CSearchCandidateProvider::CreateInstance(REFIID riid, _Outptr_ void **ppvObj, _In_ ITfTextInputProcessorEx *ptip)
+{ 
+    if (ppvObj == nullptr)
+    {
+        return E_INVALIDARG;
+    }
+    *ppvObj = nullptr;
+
+    *ppvObj = new (std::nothrow) CSearchCandidateProvider(ptip);
+    if (nullptr == *ppvObj)
+    {
+        return E_OUTOFMEMORY;
+    }
+
+    return ((CSearchCandidateProvider*)(*ppvObj))->QueryInterface(riid, ppvObj);
+}
+
+/*------------------------------------------------------------------------------
+
+constructor of CSearchCandidateProvider
+
+------------------------------------------------------------------------------*/
+CSearchCandidateProvider::CSearchCandidateProvider(_In_ ITfTextInputProcessorEx *ptip)
+{
+    assert(ptip != nullptr);
+
+    _pTip = ptip;
+    _refCount = 0;
+}
+
+/*------------------------------------------------------------------------------
+
+destructor of CSearchCandidateProvider
+
+------------------------------------------------------------------------------*/
+CSearchCandidateProvider::~CSearchCandidateProvider(void)
+{  
+}
+
+/*------------------------------------------------------------------------------
+
+query interface
+(IUnknown method)
+
+------------------------------------------------------------------------------*/
+STDMETHODIMP CSearchCandidateProvider::QueryInterface(REFIID riid, _Outptr_ void **ppvObj)
+{
+    if (ppvObj == nullptr)
+    {
+        return E_POINTER;
+    }
+    *ppvObj = nullptr;
+
+    if (IsEqualIID(riid, IID_IUnknown) || IsEqualIID(riid, __uuidof(ITfFnSearchCandidateProvider)))
+    {
+        *ppvObj = (ITfFnSearchCandidateProvider*)this;
+    }
+    else if (IsEqualIID(riid, IID_ITfFunction))
+    {
+        *ppvObj = (ITfFunction*)this;
+    }
+
+    if (*ppvObj == nullptr)
+    {
+        return E_NOINTERFACE;
+    }
+
+    AddRef();
+    return S_OK;
+}
+
+/*------------------------------------------------------------------------------
+
+increment reference count
+(IUnknown method)
+
+------------------------------------------------------------------------------*/
+STDMETHODIMP_(ULONG) CSearchCandidateProvider::AddRef()
+{
+    return (ULONG)InterlockedIncrement(&_refCount);
+}
+
+/*------------------------------------------------------------------------------
+
+decrement reference count and release object
+(IUnknown method)
+
+------------------------------------------------------------------------------*/
+STDMETHODIMP_(ULONG) CSearchCandidateProvider::Release()
+{
+    ULONG ref = (ULONG)InterlockedDecrement(&_refCount);
+    if (0 < ref)
+    {
+        return ref;
+    }
+
+    delete this;
+    return 0;
+}
+
+STDMETHODIMP CSearchCandidateProvider::GetDisplayName(_Out_ BSTR *pbstrName)
+{
+    if (pbstrName == nullptr)
+    {
+        return E_INVALIDARG;
+    }
+
+    *pbstrName = SysAllocString(L"SearchCandidateProvider");
+    return  S_OK;
+}
+
+STDMETHODIMP CSearchCandidateProvider::GetSearchCandidates(BSTR bstrQuery, BSTR bstrApplicationID, _Outptr_result_maybenull_ ITfCandidateList **pplist)
+{
+	bstrApplicationID;bstrQuery;
+    HRESULT hr = E_FAIL;
+    *pplist = nullptr;
+
+    if (nullptr == _pTip)
+    {
+        return hr;
+    }
+
+    CCompositionProcessorEngine* pCompositionProcessorEngine = ((CSampleIME*)_pTip)->GetCompositionProcessorEngine();
+    if (nullptr == pCompositionProcessorEngine)
+    {
+        return hr;
+    }
+
+    CSampleImeArray<CCandidateListItem> candidateList;
+    pCompositionProcessorEngine->GetCandidateList(&candidateList, TRUE, FALSE);
+
+    int cCand = min(candidateList.Count(), FAKECANDIDATENUMBER);
+    if (0 < cCand)
+    {
+        hr = CTipCandidateList::CreateInstance(pplist, cCand);
+		if (FAILED(hr))
+		{
+			return hr;
+		}
+        for (int iCand = 0; iCand < cCand; iCand++)
+        {
+            ITfCandidateString* pCandStr = nullptr;
+            CTipCandidateString::CreateInstance(IID_ITfCandidateString, (void**)&pCandStr);
+
+            ((CTipCandidateString*)pCandStr)->SetIndex(iCand);
+            ((CTipCandidateString*)pCandStr)->SetString(candidateList.GetAt(iCand)->_ItemString.Get(), candidateList.GetAt(iCand)->_ItemString.GetLength());
+
+            ((CTipCandidateList*)(*pplist))->SetCandidate(&pCandStr);
+        }
+    }
+    hr = S_OK;
+
+    return hr;
+}
+
+/*------------------------------------------------------------------------------
+
+set result
+(ITfFnSearchCandidateProvider method)
+
+------------------------------------------------------------------------------*/
+STDMETHODIMP CSearchCandidateProvider::SetResult(BSTR bstrQuery, BSTR bstrApplicationID, BSTR bstrResult)
+{
+    bstrQuery;bstrApplicationID;bstrResult;
+
+    return E_NOTIMPL;
+}
+