C++ CComQIPtr::EnumObjects方法代码示例

	void StartClassify(const CComBSTR & scriptText)
	{
		clib::recursive_mutex::scoped_lock proc(m_mutex);
		if (m_classified)
		{
			proc.unlock();
			on_refresh(this, EVENT_CLASSIFIED);
			return;
		}
		m_classified = true;
		ClassifyStructVector request;
		
		//Process Main Frame
		InsertScript(m_doc, scriptText);
		PrepRequest(m_doc, request);
		
		//Process Child Frames
		CComQIPtr<IOleContainer> pContainer = m_doc;
		if (!pContainer)
			return;

		CComPtr<IEnumUnknown> pEnumerator;
		HRESULT hr = pContainer->EnumObjects(OLECONTF_EMBEDDINGS, &pEnumerator);
		if (FAILED(hr))
			return;

		CComPtr<IUnknown> pUnk;
		ULONG uFetched;
		for (UINT i = 0; S_OK == pEnumerator->Next(1, &pUnk, &uFetched); i++)
		{
			CComQIPtr<IWebBrowser2> pBrowser = pUnk;
			if (pBrowser)
			{
				CComPtr<IDispatch> spDispDoc;
				HRESULT hr = pBrowser->get_Document(&spDispDoc);
				if (SUCCEEDED(hr))
				{
					// ...and query for an HTML document.
					CComQIPtr<IHTMLDocument> spHTMLDoc = spDispDoc;
					if (spHTMLDoc)
					{
						InsertScript(spHTMLDoc, scriptText);
						PrepRequest(spHTMLDoc, request);
					}
				}
			}
			pUnk.Release();
		}

		m_classifyThreads.SetMaxThreadCount(0);
		ClassifyStructVector batchRequest;
		int textLen = 0;
		for(ClassifyStructVector::iterator itr = request.begin(); itr != request.end(); ++itr)
		{
			textLen += itr->text.length();
			batchRequest.push_back(*itr);
			if (textLen > BATCH_SIZE)
			{
				m_classifyThreads.Append(__FUNCTION__, boost::bind(&threadClassify, this, batchRequest));
				batchRequest.clear();
				textLen = 0;
			}
		}
		if (batchRequest.size())
		{
			m_classifyThreads.Append(__FUNCTION__, boost::bind(&threadClassify, this, batchRequest));
			batchRequest.clear();
		}
		m_classifyThreads.SetMaxThreadCount(THREAD_COUNT);
		//int textLen = 0;
		//BOOL finished = false;
		//HRESULT hr = S_OK;
		//while(hr == S_OK && !finished)
		//{
		//	MARKUP_CONTEXT_TYPE pContext = CONTEXT_TYPE_None;
		//	long pcch = -1;
		//	prev->MoveToPointer(finger);
		//	hr = finger->Right(true, &pContext, NULL, &pcch, NULL);
		//	if (pContext == CONTEXT_TYPE_Text && pcch > 1)
		//	{
		//		ClassifyStruct newItem;
		//		newItem.text.resize(pcch);
		//		prev->Right(false, NULL, NULL, &pcch, &newItem.text[0]);
		//		std::wstring testStr = newItem.text;
		//		boost::algorithm::trim(testStr);
		//		if (testStr.length())
		//		{
		//			markupServices->CreateMarkupPointer(&newItem.textNode);
		//			newItem.textNode->MoveToPointer(prev);
		//			request.push_back(newItem);
		//			textLen += pcch;
		//			if (textLen > 1000)
		//			{
		//				m_classifyThreads.Append(__FUNCTION__, boost::bind(&threadClassify, this, request));
		//				request.clear();
		//				textLen = 0;
		//			}
		//		}
		//	}
		//	finger->IsRightOfOrEqualTo(end, &finished);
//.........这里部分代码省略.........

void                                           
CFrame::UpdateLinks()
{
	// start from scratch
	m_ChildFrames.clear();

	// detect all child frames
	CComQIPtr<IOleContainer> spContainer = m_Document;
	if (!!spContainer)
	{
		// get an enumerator for the frames
		IEnumUnknown* pEnumerator;
		HRESULT hr = spContainer->EnumObjects(OLECONTF_EMBEDDINGS, &pEnumerator);

		if (SUCCEEDED(hr))
		{
			IUnknown* pUnknown;
			ULONG uFetched;

			// enumerate all the frames
			for (UINT i = 0; S_OK == pEnumerator->Next(1, &pUnknown, &uFetched); i++)
			{
				CComQIPtr<IWebBrowser2> spChildBrowser = pUnknown;
				pUnknown->Release();
				if (!!spChildBrowser)
				{
					// well done, store child frame
					CComPtr<IDispatch> spChildDispDoc;
					CHECK_COM(spChildBrowser->get_Document(&spChildDispDoc), FS(_T("Cannot retrieve document object from %08X"), spChildBrowser));
					CComQIPtr<IHTMLDocument2> spChildDoc = spChildDispDoc;

					// sometimes IE can return NULL spChildDispDoc 
					// 
					// (observed on pages with file download blocking)
					// test for valid doc
					if (!!spChildDoc)
					{
						CComBSTR url2;
						CHECK_COM(spChildDoc->get_URL(&url2), FS(_T("Cannot retrieve location URL from %08X"), spChildDoc));
						CString URL2 = url2;

						// it wouldn't be so easy to simply add child document into childs
						// but IE (maybe) does some reallocation of this document, so we need to do lookup via frameId

						TFrameId id = m_FrameTable.GetFrameId(spChildDoc, false);

						// wait for document to load, 
						// there is RISK OF CALLS to other functions !!!
						//if (id==NULL_FRAME) id = m_FrameTable.GetFrameId(spChildDoc, true); // blocking call
						if (id==NULL_FRAME)
						{
							// TODO: tohle se muze nekdy stat, kdyz se frame jeste nestihne naloadovat pri F5, napriklad gmail.com to dela
							TRACE_W(FS(_T("Child doc not found for %s !!"), URL2));
						}
						else
						{
							m_ChildFrames.push_back(id);
						}
					}
				}
			}
		}
		pEnumerator->Release();
	}
}