diff options
Diffstat (limited to 'embed/xulrunner/src/EmbedStream.cpp')
| -rw-r--r-- | embed/xulrunner/src/EmbedStream.cpp | 311 |
1 files changed, 0 insertions, 311 deletions
diff --git a/embed/xulrunner/src/EmbedStream.cpp b/embed/xulrunner/src/EmbedStream.cpp deleted file mode 100644 index 6cd08d400..000000000 --- a/embed/xulrunner/src/EmbedStream.cpp +++ /dev/null @@ -1,311 +0,0 @@ -/* - * Copyright © Christopher Blizzard - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License as published by - * the Free Software Foundation; either version 2.1, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * - * --------------------------------------------------------------------------- - * Derived from Mozilla.org code, which had the following attributions: - * - * The Original Code is mozilla.org code. - * - * The Initial Developer of the Original Code is - * Christopher Blizzard. Portions created by Christopher Blizzard are Copyright © Christopher Blizzard. All Rights Reserved. - * Portions created by the Initial Developer are Copyright © 2001 - * the Initial Developer. All Rights Reserved. - * - * Contributor(s): - * Christopher Blizzard <blizzard@mozilla.org> - * --------------------------------------------------------------------------- - * - * $Id$ - */ - -#include <mozilla-config.h> -#include <config.h> - -#include <nsIPipe.h> -#include <nsIInputStream.h> -#include <nsIOutputStream.h> -#include <nsIContentViewerContainer.h> -#include <nsIDocumentLoaderFactory.h> -#include <nsNetUtil.h> -#include <prmem.h> - -#include "nsXPCOMCID.h" -#include "nsICategoryManager.h" - -#include "nsIContentViewer.h" - -#include "EmbedStream.h" -#include "EmbedPrivate.h" -#include "EmbedWindow.h" -#include "nsReadableUtils.h" - -// nsIInputStream interface - -NS_IMPL_ISUPPORTS1(EmbedStream, nsIInputStream) - -EmbedStream::EmbedStream() -{ - mOwner = nsnull; - mOffset = 0; - mDoingStream = PR_FALSE; -} - -EmbedStream::~EmbedStream() -{ -} - -void -EmbedStream::InitOwner(EmbedPrivate *aOwner) -{ - mOwner = aOwner; -} - -NS_METHOD -EmbedStream::Init(void) -{ - nsresult rv = NS_OK; - - nsCOMPtr<nsIInputStream> bufInStream; - nsCOMPtr<nsIOutputStream> bufOutStream; - - rv = NS_NewPipe(getter_AddRefs(bufInStream), - getter_AddRefs(bufOutStream)); - - if (NS_FAILED(rv)) return rv; - - mInputStream = bufInStream; - mOutputStream = bufOutStream; - return NS_OK; -} - -NS_METHOD -EmbedStream::OpenStream(const char *aBaseURI, const char *aContentType) -{ - NS_ENSURE_ARG_POINTER(aBaseURI); - NS_ENSURE_ARG_POINTER(aContentType); - - nsresult rv = NS_OK; - - // if we're already doing a stream then close the current one - if (mDoingStream) - CloseStream(); - - // set our state - mDoingStream = PR_TRUE; - - // initialize our streams - rv = Init(); - if (NS_FAILED(rv)) - return rv; - - // get the content area of our web browser - nsCOMPtr<nsIWebBrowser> browser; - mOwner->mWindow->GetWebBrowser(getter_AddRefs(browser)); - - // get the viewer container - nsCOMPtr<nsIContentViewerContainer> viewerContainer; - viewerContainer = do_GetInterface(browser); - - // create a new uri object - nsCOMPtr<nsIURI> uri; - nsCAutoString spec(aBaseURI); - rv = NS_NewURI(getter_AddRefs(uri), spec.get()); - - if (NS_FAILED(rv)) - return rv; - - // create a new load group - rv = NS_NewLoadGroup(getter_AddRefs(mLoadGroup), nsnull); - if (NS_FAILED(rv)) - return rv; - - // create a new input stream channel - rv = NS_NewInputStreamChannel(getter_AddRefs(mChannel), uri, - static_cast<nsIInputStream *>(this), - nsDependentCString(aContentType), - EmptyCString()); - if (NS_FAILED(rv)) - return rv; - - // set the channel's load group - rv = mChannel->SetLoadGroup(mLoadGroup); - if (NS_FAILED(rv)) - return rv; - - // find a document loader for this content type - - nsXPIDLCString docLoaderContractID; - nsCOMPtr<nsICategoryManager> catMan(do_GetService(NS_CATEGORYMANAGER_CONTRACTID, &rv)); - if (NS_FAILED(rv)) - return rv; - rv = catMan->GetCategoryEntry("Gecko-Content-Viewers", aContentType, - getter_Copies(docLoaderContractID)); - if (NS_FAILED(rv)) - return rv; - - nsCOMPtr<nsIDocumentLoaderFactory> docLoaderFactory; - docLoaderFactory = do_GetService(docLoaderContractID.get(), &rv); - if (NS_FAILED(rv)) - return rv; - - // ok, create an instance of the content viewer for that command and - // mime type - nsCOMPtr<nsIContentViewer> contentViewer; - rv = docLoaderFactory->CreateInstance("view", mChannel, mLoadGroup, - aContentType, viewerContainer, - nsnull, - getter_AddRefs(mStreamListener), - getter_AddRefs(contentViewer)); - if (NS_FAILED(rv)) - return rv; - - // set the container viewer container for this content view - rv = contentViewer->SetContainer(viewerContainer); - if (NS_FAILED(rv)) - return rv; - - // embed this sucker - rv = viewerContainer->Embed(contentViewer, "view", nsnull); - if (NS_FAILED(rv)) - return rv; - - // start our request - nsCOMPtr<nsIRequest> request = do_QueryInterface(mChannel); - rv = mStreamListener->OnStartRequest(request, NULL); - if (NS_FAILED(rv)) - return rv; - - return NS_OK; -} - -NS_METHOD -EmbedStream::AppendToStream(const char *aData, gint32 aLen) -{ - nsresult rv; - - // append the data - rv = Append(aData, aLen); - if (NS_FAILED(rv)) - return rv; - - // notify our listeners - nsCOMPtr<nsIRequest> request = do_QueryInterface(mChannel); - rv = mStreamListener->OnDataAvailable(request, - NULL, - static_cast<nsIInputStream *>(this), - mOffset, /* offset */ - aLen); /* len */ - // move our counter - mOffset += aLen; - if (NS_FAILED(rv)) - return rv; - - return NS_OK; -} - -NS_METHOD -EmbedStream::CloseStream(void) -{ - nsresult rv = NS_OK; - - NS_ENSURE_STATE(mDoingStream); - mDoingStream = PR_FALSE; - - nsCOMPtr<nsIRequest> request = do_QueryInterface(mChannel, &rv); - if (NS_FAILED(rv)) - goto loser; - - rv = mStreamListener->OnStopRequest(request, NULL, NS_OK); - if (NS_FAILED(rv)) - return rv; - - loser: - mLoadGroup = nsnull; - mChannel = nsnull; - mStreamListener = nsnull; - mOffset = 0; - - return rv; -} - -NS_METHOD -EmbedStream::Append(const char *aData, PRUint32 aLen) -{ - nsresult rv = NS_OK; - PRUint32 bytesWritten = 0; - rv = mOutputStream->Write(aData, aLen, &bytesWritten); - if (NS_FAILED(rv)) - return rv; - - NS_ASSERTION(bytesWritten == aLen, - "underlying byffer couldn't handle the write"); - return rv; -} - -NS_IMETHODIMP -EmbedStream::Available(PRUint32 *_retval) -{ - return mInputStream->Available(_retval); -} - -NS_IMETHODIMP -EmbedStream::Read(char * aBuf, PRUint32 aCount, PRUint32 *_retval) -{ - return mInputStream->Read(aBuf, aCount, _retval); -} - -NS_IMETHODIMP EmbedStream::Close(void) -{ - return mInputStream->Close(); -} - -NS_IMETHODIMP -EmbedStream::ReadSegments(nsWriteSegmentFun aWriter, void * aClosure, - PRUint32 aCount, PRUint32 *_retval) -{ - char *readBuf = (char *)nsMemory::Alloc(aCount); - PRUint32 nBytes; - - if (!readBuf) - return NS_ERROR_OUT_OF_MEMORY; - - nsresult rv = mInputStream->Read(readBuf, aCount, &nBytes); - - *_retval = 0; - - if (NS_SUCCEEDED(rv)) { - PRUint32 writeCount = 0; - rv = aWriter(this, aClosure, readBuf, 0, nBytes, &writeCount); - - // XXX writeCount may be less than nBytes!! This is the wrong - // way to synthesize ReadSegments. - NS_ASSERTION(writeCount == nBytes, "data loss"); - - // errors returned from the writer end here! - rv = NS_OK; - } - - nsMemory::Free(readBuf); - - return rv; -} - -NS_IMETHODIMP -EmbedStream::IsNonBlocking(PRBool *aNonBlocking) -{ - return mInputStream->IsNonBlocking(aNonBlocking); -} |