nsresult
nsDocLoader::Init()
{
if (!mRequestInfoHash.IsInitialized()) {
return NS_ERROR_OUT_OF_MEMORY;
}
nsresult rv = NS_NewLoadGroup(getter_AddRefs(mLoadGroup), this);
if (NS_FAILED(rv)) return rv;
PR_LOG(gDocLoaderLog, PR_LOG_DEBUG,
("DocLoader:%p: load group %x.\n", this, mLoadGroup.get()));
return NS_OK;
}
mozXMLTermStream::mozXMLTermStream() :
mUTF8Buffer(""),
mUTF8Offset(0),
mMaxResizeHeight(0),
mDOMWindow( nsnull ),
#ifdef NO_WORKAROUND
mDOMIFrameElement( nsnull ),
mContext( nsnull ),
mLoadGroup( nsnull ),
mChannel( nsnull ),
mStreamListener( nsnull )
#else // !NO_WORKAROUND
mDOMHTMLDocument( nsnull )
#endif // !NO_WORKAROUND
{
}
mozXMLTermStream::~mozXMLTermStream()
{
}
// mozIXMLTermStream interface
/** Open stream in specified frame, or in current frame if frameName is null
* @param aDOMWindow parent window
* @param frameName name of child frame in which to display stream, or null
* to display in parent window
* @param contentURL URL of stream content
* @param contentType MIME type of stream content
* @param maxResizeHeight maximum resize height (0=> do not resize)
* @return NS_OK on success
*/
NS_IMETHODIMP mozXMLTermStream::Open(nsIDOMWindowInternal* aDOMWindow,
const char* frameName,
const char* contentURL,
const char* contentType,
PRInt32 maxResizeHeight)
{
nsresult result;
XMLT_LOG(mozXMLTermStream::Open,20,("contentURL=%s, contentType=%s\n",
contentURL, contentType));
mMaxResizeHeight = maxResizeHeight;
if (frameName && *frameName) {
// Open stream in named subframe of current frame
XMLT_LOG(mozXMLTermStream::Open,22,("frameName=%s\n", frameName));
nsAutoString innerFrameName; innerFrameName.AssignASCII(frameName);
// Get DOM IFRAME element
nsCOMPtr<nsIDOMDocument> domDoc;
result = aDOMWindow->GetDocument(getter_AddRefs(domDoc));
if (NS_FAILED(result) || !domDoc)
return NS_ERROR_FAILURE;
nsCOMPtr<nsIDOMHTMLDocument> domHTMLDoc = do_QueryInterface(domDoc);
if (!domHTMLDoc)
return NS_ERROR_FAILURE;
nsCOMPtr<nsIDOMNodeList> nodeList;
result = domHTMLDoc->GetElementsByName(innerFrameName,
getter_AddRefs(nodeList));
if (NS_FAILED(result) || !nodeList)
return NS_ERROR_FAILURE;
PRUint32 count;
nodeList->GetLength(&count);
PR_ASSERT(count==1);
nsCOMPtr<nsIDOMNode> domNode;
result = nodeList->Item(0, getter_AddRefs(domNode));
if (NS_FAILED(result) || !domNode)
return NS_ERROR_FAILURE;
mDOMIFrameElement = do_QueryInterface(domNode);
if (!mDOMIFrameElement)
return NS_ERROR_FAILURE;
// Ensure that it is indeed an IFRAME element
nsAutoString tagName;
result = mDOMIFrameElement->GetTagName(tagName);
if (NS_FAILED(result))
return NS_ERROR_FAILURE;
if (!tagName.LowerCaseEqualsLiteral("iframe"))
return NS_ERROR_FAILURE;
if (mMaxResizeHeight > 0) {
// Set initial IFRAME size to be as wide as the window, but very short
nsAutoString attWidth(NS_LITERAL_STRING("width"));
nsAutoString valWidth(NS_LITERAL_STRING("100%"));
mDOMIFrameElement->SetAttribute(attWidth,valWidth);
nsAutoString attHeight(NS_LITERAL_STRING("height"));
nsAutoString valHeight(NS_LITERAL_STRING("10"));
mDOMIFrameElement->SetAttribute(attHeight,valHeight);
}
// Get inner DOM window by looking up the frames list
nsCOMPtr<nsIDOMWindowInternal> innerDOMWindow;
result = mozXMLTermUtils::GetInnerDOMWindow(aDOMWindow, innerFrameName,
getter_AddRefs(innerDOMWindow));
if (NS_FAILED(result) || !innerDOMWindow)
return NS_ERROR_FAILURE;
mDOMWindow = innerDOMWindow;
} else {
// Open stream in current frame
mDOMIFrameElement = nsnull;
mDOMWindow = aDOMWindow;
}
// Get docshell for DOM window
nsCOMPtr<nsIDocShell> docShell;
result = mozXMLTermUtils::ConvertDOMWindowToDocShell(mDOMWindow,
getter_AddRefs(docShell));
if (NS_FAILED(result) || !docShell)
return NS_ERROR_FAILURE;
#ifdef NO_WORKAROUND
XMLT_WARNING("mozXMLTermStream::Open, NO_WORKAROUND, url=%s\n", contentURL);
nsCOMPtr<nsIInputStream> inputStream = this;
// Create a simple URI
nsCOMPtr<nsIURI> uri = do_CreateInstance(kSimpleURICID, &result);
if (NS_FAILED(result))
return result;
result = uri->SetSpec(nsDependentCString(contentURL));
if (NS_FAILED(result))
return result;
// Create a new load group
result = NS_NewLoadGroup(getter_AddRefs(mLoadGroup), nsnull);
if (NS_FAILED(result))
return result;
// Create an input stream channel
result = NS_NewInputStreamChannel(getter_AddRefs(mChannel),
uri,
inputStream,
nsDependentCString(contentType),
EmptyCString());
if (NS_FAILED(result))
return result;
// Set channel's load group
result = mChannel->SetLoadGroup(mLoadGroup);
if (NS_FAILED(result))
return result;
// Create document loader for specified command and content type
nsCOMPtr<nsICategoryManager> catMan(do_GetService(NS_CATEGORYMANAGER_CONTRACTID, &result));
if (NS_FAILED(result))
return result;
nsXPIDLCString contractID;
result = catMan->GetCategoryEntry("Gecko-Content-Viewers", contentType,
getter_Copies(contractID));
if (NS_FAILED(result))
return result;
nsCOMPtr<nsIDocumentLoaderFactory> docLoaderFactory;
docLoaderFactory = do_GetService(contractID.get(), &result);
if (NS_FAILED(result))
return result;
nsCOMPtr<nsIContentViewerContainer> contViewContainer =
do_QueryInterface(docShell);
nsCOMPtr<nsIContentViewer> contentViewer;
result = docLoaderFactory->CreateInstance("view",
mChannel,
mLoadGroup,
contentType,
contViewContainer,
nsnull,
getter_AddRefs(mStreamListener),
getter_AddRefs(contentViewer) );
if (NS_FAILED(result))
return result;
// Set container for content view
result = contentViewer->SetContainer(contViewContainer);
if (NS_FAILED(result))
return result;
// Embed contentViewer in containing docShell
result = contViewContainer->Embed(contentViewer, "view", nsnull);
if (NS_FAILED(result))
return result;
// Start request
result = mStreamListener->OnStartRequest(mChannel, mContext);
if (NS_FAILED(result))
return result;
#else // !NO_WORKAROUND
XMLT_WARNING("mozXMLTermStream::Open, WORKAROUND\n");
nsCOMPtr<nsIDOMDocument> innerDOMDoc;
result = mDOMWindow->GetDocument(getter_AddRefs(innerDOMDoc));
XMLT_WARNING("mozXMLTermStream::Open,check1, 0x%x, 0x%x\n",
result, (int) innerDOMDoc.get());
if (NS_FAILED(result) || !innerDOMDoc)
return NS_ERROR_FAILURE;
mDOMHTMLDocument = do_QueryInterface(innerDOMDoc);
XMLT_WARNING("mozXMLTermStream::Open,check2, 0x%x\n", result);
if (!mDOMHTMLDocument)
return NS_ERROR_FAILURE;
result = mDOMHTMLDocument->Open();
XMLT_WARNING("mozXMLTermStream::Open,check3, 0x%x\n", result);
if (NS_FAILED(result))
return result;
#endif // !NO_WORKAROUND
XMLT_LOG(mozXMLTermStream::Open,21,("returning\n"));
return NS_OK;
}
