void CDocEvtHandler::OnMouseMove(MSHTML::IHTMLEventObjPtr pEvtObj)
{
MSHTML::IHTMLElementPtr pElement = pEvtObj->GetsrcElement(); // 事件发生的对象元素
//活动对象改变时进行处理
if (m_pLastActiveElement != pElement)
{
m_pLastActiveElement = pElement;
_bstr_t strTagname;
pElement->get_outerHTML(&strTagname.GetBSTR());
CStdString strMsg = strTagname;
m_pNotifyView->SendMessage(WM_VIEW_EVENT_ACTIVE_ELEMENT, (WPARAM)(LPCTSTR)strMsg);
}
}
/**
* Gets value of specified attribute out of some HTML Tag
* @param pElem HTML element pointer
* @param bstrText Name of the attribute
* @param sValue Reference of the string that will hold the value
* @return true if attribute is present false otherwise
*/
bool COfflineBrowser::GetAttribute(MSHTML::IHTMLElementPtr pElem, BSTR bstrText, std::string& sValue)
{
try
{
CComVariant var = pElem->getAttribute(bstrText, 0);
USES_CONVERSION;
if (var.vt == VT_BSTR && var.bstrVal != NULL)
sValue = (LPCTSTR)OLE2T(var.bstrVal);
else
sValue = "";
}
//Attribute not present
catch (_com_error e)
{
sValue = "";
}
//Special condition for about:blank, keep remember it
int nIndex = sValue.find("about:blank");
if(nIndex == 0)
{
int nLen = strlen("about:blank");
sValue = sValue.substr(nLen, sValue.length()-nLen);
}
return sValue.length() ? true : false;
}
/**
* Sets value of specified attribute in some HTML Tag
* @param pElem HTML element pointer
* @param bstrText Name of the attribute
* @param sValue Value of the attribute
*/
void COfflineBrowser::SetAttribute(MSHTML::IHTMLElementPtr pElem, BSTR bstrText, const std::string& sValue)
{
try
{
pElem->setAttribute(bstrText, sValue.c_str(), 0);
}
//Some erroneous condition occur, it shouldn't be thrown under normal conditions
catch(_com_error e)
{
int a;
a=0;
}
}
/**
* It Downloads all the resources, main function of concern, all the required members variables must
* be populated for it to work correctly
*/
void COfflineBrowser::BrowseOffline()
{
USES_CONVERSION;
//Delete if this directory exists, it is a disputed call, you can safely comment it out
DeleteDirectory(m_sDir);
//Create the directory again
CreateDirectory(m_sDir.c_str(), NULL);
//SaveHtml(m_sHtml);
//Create HTML Document which will be hold the html that was have
MSHTML::IHTMLDocument2Ptr pDoc;
HRESULT hr = CoCreateInstance(CLSID_HTMLDocument, NULL, CLSCTX_INPROC_SERVER,
IID_IHTMLDocument2, (void**)&pDoc);
if(pDoc == NULL)
return;
//Load HTML to Html Document
SAFEARRAY* psa = SafeArrayCreateVector(VT_VARIANT, 0, 1);
VARIANT *param;
bstr_t bsData = (LPCTSTR)m_sHtml.c_str();
hr = SafeArrayAccessData(psa, (LPVOID*)¶m);
param->vt = VT_BSTR;
param->bstrVal = (BSTR)bsData;
//write your buffer
hr = pDoc->write(psa);
//closes the document, "applying" your code
hr = pDoc->close();
//Don't forget to free the SAFEARRAY!
SafeArrayDestroy(psa);
//Iterate through all the elements in the document
MSHTML::IHTMLElementCollectionPtr pCollection = pDoc->all;
for(long a=0;a<pCollection->length;a++)
{
std::string sValue;
IHTMLElementPtr pElem = pCollection->item( a );
//If src attribute is found that means we've a resource to download
if(GetAttribute(pElem, L"src", sValue))
{
//If resource URL is relative
if(!IsAbsolute(sValue))
{
if(sValue[0] == '/')
sValue = sValue.substr(1, sValue.length()-1);
//Create directories needed to hold this resource
//CreateDirectories(sValue, m_sDir);
//Download the resource
if(1)//!DownloadResource(sValue, sValue))
{
std::string sTemp = m_sScheme + m_sHost;
sTemp += sValue;
//Update src to the new src and put the original src attribute as
//srcdump just for future references
if(sTemp[0] == '/')
sTemp = sTemp.substr(1, sTemp.length()-1);
SetAttribute(pElem, L"src", sTemp);
SetAttribute(pElem, L"srcdump", sValue);
}
//Unable to download the resource
else
{
//Put srcdump same as src, It if for no use, I just put it to make
//HTML DOM consistent
SetAttribute(pElem, L"srcdump", sValue);
}
}
//If resource URL is absolute
else
{
std::string sTemp;
//Make URL relative
sTemp = TrimHostName(sValue);
//Create directories needed to hold this resource
//CreateDirectories(sTemp, m_sDir);
//Dowload the resource
if(1)//DownloadResource(sTemp, sTemp))
{
//Update src to the new src and put the original src attribute as
//srcdump just for future references
if(sTemp[0] == '/')
sTemp = sTemp.substr(1, sTemp.length()-1);
SetAttribute(pElem, L"src", sTemp);
SetAttribute(pElem, L"srcdump", sValue);
}
}
}
}
//Get upated HTML out of amendments we made and save it to the described directory
MSHTML::IHTMLDocument3Ptr pDoc3 = pDoc;
MSHTML::IHTMLElementPtr pDocElem;
pDoc3->get_documentElement(&pDocElem);
BSTR bstrHtml;
pDocElem->get_outerHTML(&bstrHtml);
std::string sNewHtml((const wchar_t*)OLE2T(bstrHtml));
SaveHtml(sNewHtml);
}
