зеркало из https://github.com/mozilla/pjs.git
fix memory leak in Cocoa icon decoder. b=342066 r=mento sr=pav
This commit is contained in:
joshmoz%gmail.com
Родитель
09f290feed
Коммит
9684134616
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@ -1,471 +0,0 @@
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
|
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
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* for the specific language governing rights and limitations under the
|
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Brian Ryner.
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* Portions created by the Initial Developer are Copyright (C) 2000
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Scott MacGregor <mscott@mozilla.org>
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* Robert John Churchill <rjc@netscape.com>
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* Josh Aas <josh@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
|
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* use your version of this file under the terms of the MPL, indicate your
|
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
|
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* the provisions above, a recipient may use your version of this file under
|
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsIconChannel.h"
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#include "nsIIconURI.h"
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#include "nsIServiceManager.h"
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#include "nsIInterfaceRequestor.h"
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#include "nsIInterfaceRequestorUtils.h"
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#include "nsXPIDLString.h"
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#include "nsMimeTypes.h"
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#include "nsMemory.h"
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#include "nsIStringStream.h"
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#include "nsIURL.h"
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#include "nsNetUtil.h"
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#include "nsIMIMEService.h"
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#include "nsCExternalHandlerService.h"
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#include "plstr.h"
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#include "nsILocalFileMac.h"
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#include "nsIFileURL.h"
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#include "nsInt64.h"
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#include "nsAutoBuffer.h"
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#include <Cocoa/Cocoa.h>
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// nsIconChannel methods
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nsIconChannel::nsIconChannel()
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{
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}
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nsIconChannel::~nsIconChannel()
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{}
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NS_IMPL_THREADSAFE_ISUPPORTS4(nsIconChannel,
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nsIChannel,
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nsIRequest,
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nsIRequestObserver,
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nsIStreamListener)
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nsresult nsIconChannel::Init(nsIURI* uri)
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{
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NS_ASSERTION(uri, "no uri");
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mUrl = uri;
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nsresult rv;
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mPump = do_CreateInstance(NS_INPUTSTREAMPUMP_CONTRACTID, &rv);
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return rv;
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}
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////////////////////////////////////////////////////////////////////////////////
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// nsIRequest methods:
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NS_IMETHODIMP nsIconChannel::GetName(nsACString &result)
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{
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return mUrl->GetSpec(result);
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}
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NS_IMETHODIMP nsIconChannel::IsPending(PRBool *result)
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{
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return mPump->IsPending(result);
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}
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NS_IMETHODIMP nsIconChannel::GetStatus(nsresult *status)
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{
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return mPump->GetStatus(status);
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}
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NS_IMETHODIMP nsIconChannel::Cancel(nsresult status)
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{
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return mPump->Cancel(status);
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}
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NS_IMETHODIMP nsIconChannel::Suspend(void)
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{
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return mPump->Suspend();
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}
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NS_IMETHODIMP nsIconChannel::Resume(void)
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{
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return mPump->Resume();
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}
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// nsIRequestObserver methods
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NS_IMETHODIMP nsIconChannel::OnStartRequest(nsIRequest* aRequest, nsISupports* aContext)
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{
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if (mListener)
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return mListener->OnStartRequest(this, aContext);
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return NS_OK;
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}
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NS_IMETHODIMP nsIconChannel::OnStopRequest(nsIRequest* aRequest, nsISupports* aContext, nsresult aStatus)
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{
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if (mListener) {
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mListener->OnStopRequest(this, aContext, aStatus);
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mListener = nsnull;
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}
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// Remove from load group
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if (mLoadGroup)
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mLoadGroup->RemoveRequest(this, nsnull, aStatus);
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return NS_OK;
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}
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// nsIStreamListener methods
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NS_IMETHODIMP nsIconChannel::OnDataAvailable(nsIRequest* aRequest,
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nsISupports* aContext,
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nsIInputStream* aStream,
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PRUint32 aOffset,
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PRUint32 aCount)
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{
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if (mListener)
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return mListener->OnDataAvailable(this, aContext, aStream, aOffset, aCount);
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return NS_OK;
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}
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////////////////////////////////////////////////////////////////////////////////
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// nsIChannel methods:
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NS_IMETHODIMP nsIconChannel::GetOriginalURI(nsIURI* *aURI)
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{
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*aURI = mOriginalURI ? mOriginalURI : mUrl;
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NS_ADDREF(*aURI);
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return NS_OK;
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}
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NS_IMETHODIMP nsIconChannel::SetOriginalURI(nsIURI* aURI)
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{
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mOriginalURI = aURI;
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return NS_OK;
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}
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NS_IMETHODIMP nsIconChannel::GetURI(nsIURI* *aURI)
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{
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*aURI = mUrl;
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NS_IF_ADDREF(*aURI);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsIconChannel::Open(nsIInputStream **_retval)
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{
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return MakeInputStream(_retval, PR_FALSE);
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}
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nsresult nsIconChannel::ExtractIconInfoFromUrl(nsIFile ** aLocalFile, PRUint32 * aDesiredImageSize, nsACString &aContentType, nsACString &aFileExtension)
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{
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nsresult rv = NS_OK;
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nsCOMPtr<nsIMozIconURI> iconURI (do_QueryInterface(mUrl, &rv));
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NS_ENSURE_SUCCESS(rv, rv);
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iconURI->GetImageSize(aDesiredImageSize);
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iconURI->GetContentType(aContentType);
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iconURI->GetFileExtension(aFileExtension);
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nsCOMPtr<nsIURI> fileURI;
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rv = iconURI->GetIconFile(getter_AddRefs(fileURI));
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if (NS_FAILED(rv) || !fileURI) return NS_OK;
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nsCOMPtr<nsIFileURL> fileURL = do_QueryInterface(fileURI, &rv);
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if (NS_FAILED(rv) || !fileURL) return NS_OK;
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nsCOMPtr<nsIFile> file;
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rv = fileURL->GetFile(getter_AddRefs(file));
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if (NS_FAILED(rv) || !file) return NS_OK;
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nsCOMPtr<nsILocalFileMac> localFileMac (do_QueryInterface(file, &rv));
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if (NS_FAILED(rv) || !localFileMac) return NS_OK;
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*aLocalFile = file;
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NS_IF_ADDREF(*aLocalFile);
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return NS_OK;
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}
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NS_IMETHODIMP nsIconChannel::AsyncOpen(nsIStreamListener *aListener, nsISupports *ctxt)
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{
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nsCOMPtr<nsIInputStream> inStream;
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nsresult rv = MakeInputStream(getter_AddRefs(inStream), PR_TRUE);
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NS_ENSURE_SUCCESS(rv, rv);
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// Init our stream pump
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rv = mPump->Init(inStream, nsInt64(-1), nsInt64(-1), 0, 0, PR_FALSE);
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NS_ENSURE_SUCCESS(rv, rv);
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rv = mPump->AsyncRead(this, ctxt);
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if (NS_SUCCEEDED(rv)) {
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// Store our real listener
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mListener = aListener;
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// Add ourself to the load group, if available
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if (mLoadGroup)
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mLoadGroup->AddRequest(this, nsnull);
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}
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return rv;
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}
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nsresult nsIconChannel::MakeInputStream(nsIInputStream** _retval, PRBool nonBlocking)
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{
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nsXPIDLCString contentType;
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nsCAutoString fileExt;
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nsCOMPtr<nsIFile> fileloc; // file we want an icon for
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PRUint32 desiredImageSize;
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nsresult rv = ExtractIconInfoFromUrl(getter_AddRefs(fileloc), &desiredImageSize, contentType, fileExt);
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NS_ENSURE_SUCCESS(rv, rv);
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// ensure that we DO NOT resolve aliases, very important for file views
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nsCOMPtr<nsILocalFile> localFile = do_QueryInterface(fileloc);
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if (localFile)
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localFile->SetFollowLinks(PR_FALSE);
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PRBool fileExists = PR_FALSE;
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if (fileloc)
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localFile->Exists(&fileExists);
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NSImage* iconImage = nil;
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// first try to get the icon from the file if it exists
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if (fileExists) {
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nsCOMPtr<nsILocalFileMac> localFileMac(do_QueryInterface(fileloc, &rv));
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NS_ENSURE_SUCCESS(rv, rv);
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CFURLRef macURL;
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if (NS_SUCCEEDED(localFileMac->GetCFURL(&macURL)))
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iconImage = [[NSWorkspace sharedWorkspace] iconForFile:[(NSURL*)macURL path]];
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}
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// try by HFS type if we don't have an icon yet
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if (!iconImage) {
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nsCOMPtr<nsIMIMEService> mimeService (do_GetService(NS_MIMESERVICE_CONTRACTID, &rv));
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NS_ENSURE_SUCCESS(rv, rv);
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// if we were given an explicit content type, use it....
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nsCOMPtr<nsIMIMEInfo> mimeInfo;
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if (mimeService && (!contentType.IsEmpty() || !fileExt.IsEmpty()))
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mimeService->GetFromTypeAndExtension(contentType, fileExt, getter_AddRefs(mimeInfo));
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if (mimeInfo) {
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// get the icon by HFS type
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PRUint32 macType;
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if (NS_SUCCEEDED(mimeInfo->GetMacType(&macType)))
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iconImage = [[NSWorkspace sharedWorkspace] iconForFileType:NSFileTypeForHFSTypeCode(macType)];
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}
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}
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// if we still don't have an icon, try to get one by extension
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if (!iconImage && !fileExt.IsEmpty()) {
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NSString* fileExtension = [NSString stringWithUTF8String:PromiseFlatCString(fileExt).get()];
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iconImage = [[NSWorkspace sharedWorkspace] iconForFileType:fileExtension];
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}
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if (!iconImage)
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return NS_ERROR_FAILURE;
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// we have an icon now, size it
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NSRect desiredSizeRect = NSMakeRect(0, 0, desiredImageSize, desiredImageSize);
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[iconImage setSize:desiredSizeRect.size];
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[iconImage lockFocus];
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NSBitmapImageRep* bitmapRep = [[[NSBitmapImageRep alloc] initWithFocusedViewRect:desiredSizeRect] autorelease];
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[iconImage unlockFocus];
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// we expect the following things to be true about our bitmapRep
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NS_ENSURE_TRUE(![bitmapRep isPlanar] &&
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(unsigned int)[bitmapRep bytesPerPlane] == desiredImageSize * desiredImageSize * 4 &&
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[bitmapRep bitsPerPixel] == 32 &&
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[bitmapRep samplesPerPixel] == 4 &&
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[bitmapRep hasAlpha] == YES,
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NS_ERROR_UNEXPECTED);
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// rgba, pre-multiplied data
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PRUint8* bitmapRepData = (PRUint8*)[bitmapRep bitmapData];
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// create our buffer
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PRInt32 bufferCapacity = 3 + desiredImageSize * desiredImageSize * 5;
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nsAutoBuffer<PRUint8, 3 + 16 * 16 * 5> iconBuffer; // initial size is for 16x16
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if (!iconBuffer.EnsureElemCapacity(bufferCapacity))
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return NS_ERROR_OUT_OF_MEMORY;
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PRUint8* iconBufferPtr = iconBuffer.get();
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// write header data into buffer
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*iconBufferPtr++ = desiredImageSize;
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*iconBufferPtr++ = desiredImageSize;
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*iconBufferPtr++ = 8; // alpha bits per pixel
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PRUint32 dataCount = (desiredImageSize * desiredImageSize) * 4;
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PRUint32 index = 0;
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while (index < dataCount) {
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// get data from the bitmap
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PRUint8 r = bitmapRepData[index++];
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PRUint8 g = bitmapRepData[index++];
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PRUint8 b = bitmapRepData[index++];
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PRUint8 a = bitmapRepData[index++];
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// reverse premultiplication
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if (a == 0) {
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r = g = b = 0;
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}
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else {
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r = ((PRUint32) r) * 255 / a;
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g = ((PRUint32) g) * 255 / a;
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b = ((PRUint32) b) * 255 / a;
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}
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// write data out to our buffer - the real alpha data is appended to the
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// end of the stream, the alpha here is just an unused extra channel
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*iconBufferPtr++ = a;
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*iconBufferPtr++ = r;
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*iconBufferPtr++ = g;
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*iconBufferPtr++ = b;
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}
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// add the alpha to the buffer
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index = 3;
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while (index < dataCount) {
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*iconBufferPtr++ = bitmapRepData[index];
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index += 4;
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}
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// Now, create a pipe and stuff our data into it
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nsCOMPtr<nsIInputStream> inStream;
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nsCOMPtr<nsIOutputStream> outStream;
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rv = NS_NewPipe(getter_AddRefs(inStream), getter_AddRefs(outStream), bufferCapacity, bufferCapacity, nonBlocking);
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|
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if (NS_SUCCEEDED(rv)) {
|
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PRUint32 written;
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rv = outStream->Write((char*)iconBuffer.get(), bufferCapacity, &written);
|
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if (NS_SUCCEEDED(rv))
|
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NS_IF_ADDREF(*_retval = inStream);
|
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}
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// Drop notification callbacks to prevent cycles.
|
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mCallbacks = nsnull;
|
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|
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return NS_OK;
|
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}
|
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|
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NS_IMETHODIMP nsIconChannel::GetLoadFlags(PRUint32 *aLoadAttributes)
|
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{
|
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return mPump->GetLoadFlags(aLoadAttributes);
|
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}
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NS_IMETHODIMP nsIconChannel::SetLoadFlags(PRUint32 aLoadAttributes)
|
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{
|
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return mPump->SetLoadFlags(aLoadAttributes);
|
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}
|
||||
|
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NS_IMETHODIMP nsIconChannel::GetContentType(nsACString &aContentType)
|
||||
{
|
||||
aContentType.AssignLiteral("image/icon");
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsIconChannel::SetContentType(const nsACString &aContentType)
|
||||
{
|
||||
//It doesn't make sense to set the content-type on this type
|
||||
// of channel...
|
||||
return NS_ERROR_FAILURE;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP nsIconChannel::GetContentCharset(nsACString &aContentCharset)
|
||||
{
|
||||
aContentCharset.AssignLiteral("image/icon");
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsIconChannel::SetContentCharset(const nsACString &aContentCharset)
|
||||
{
|
||||
//It doesn't make sense to set the content-type on this type
|
||||
// of channel...
|
||||
return NS_ERROR_FAILURE;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP nsIconChannel::GetContentLength(PRInt32 *aContentLength)
|
||||
{
|
||||
*aContentLength = mContentLength;
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP nsIconChannel::SetContentLength(PRInt32 aContentLength)
|
||||
{
|
||||
NS_NOTREACHED("nsIconChannel::SetContentLength");
|
||||
return NS_ERROR_NOT_IMPLEMENTED;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP nsIconChannel::GetLoadGroup(nsILoadGroup* *aLoadGroup)
|
||||
{
|
||||
*aLoadGroup = mLoadGroup;
|
||||
NS_IF_ADDREF(*aLoadGroup);
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP nsIconChannel::SetLoadGroup(nsILoadGroup* aLoadGroup)
|
||||
{
|
||||
mLoadGroup = aLoadGroup;
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP nsIconChannel::GetOwner(nsISupports* *aOwner)
|
||||
{
|
||||
*aOwner = mOwner.get();
|
||||
NS_IF_ADDREF(*aOwner);
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP nsIconChannel::SetOwner(nsISupports* aOwner)
|
||||
{
|
||||
mOwner = aOwner;
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP nsIconChannel::GetNotificationCallbacks(nsIInterfaceRequestor* *aNotificationCallbacks)
|
||||
{
|
||||
*aNotificationCallbacks = mCallbacks.get();
|
||||
NS_IF_ADDREF(*aNotificationCallbacks);
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP nsIconChannel::SetNotificationCallbacks(nsIInterfaceRequestor* aNotificationCallbacks)
|
||||
{
|
||||
mCallbacks = aNotificationCallbacks;
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP nsIconChannel::GetSecurityInfo(nsISupports * *aSecurityInfo)
|
||||
{
|
||||
*aSecurityInfo = nsnull;
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
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