2008-09-30 20:04:10 -07:00
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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// vim:cindent:ts=2:et:sw=2:
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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 Foundation code.
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*
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* The Initial Developer of the Original Code is
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* Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2008
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* John Daggett <jdaggett@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 of the GNU General Public License Version 2 or later (the "GPL"),
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* or 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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/* code for loading in @font-face defined font data */
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#ifdef MOZ_LOGGING
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#define FORCE_PR_LOG /* Allow logging in the release build */
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#endif /* MOZ_LOGGING */
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#include "prlog.h"
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#include "nsFontFaceLoader.h"
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2008-11-05 16:32:12 -08:00
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#include "nsError.h"
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2008-09-30 20:04:10 -07:00
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#include "nsIFile.h"
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#include "nsILocalFile.h"
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#include "nsIStreamListener.h"
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#include "nsNetUtil.h"
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#include "nsIChannelEventSink.h"
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#include "nsIInterfaceRequestor.h"
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#include "nsContentUtils.h"
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2011-06-11 19:30:16 -07:00
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#include "mozilla/Preferences.h"
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2008-09-30 20:04:10 -07:00
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#include "nsPresContext.h"
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#include "nsIPresShell.h"
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#include "nsIDocument.h"
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#include "nsIFrame.h"
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#include "nsIPrincipal.h"
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#include "nsIScriptSecurityManager.h"
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#include "nsDirectoryServiceUtils.h"
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#include "nsDirectoryServiceDefs.h"
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2008-11-05 16:32:12 -08:00
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#include "nsIContentPolicy.h"
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#include "nsContentPolicyUtils.h"
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#include "nsContentErrors.h"
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#include "nsCrossSiteListenerProxy.h"
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2010-04-23 12:53:41 -07:00
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#include "nsIContentSecurityPolicy.h"
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#include "nsIChannelPolicy.h"
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#include "nsChannelPolicy.h"
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2008-09-30 20:04:10 -07:00
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2011-04-12 03:53:20 -07:00
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#include "nsStyleSet.h"
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2011-06-11 19:30:16 -07:00
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using namespace mozilla;
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2008-09-30 20:04:10 -07:00
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#ifdef PR_LOGGING
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static PRLogModuleInfo *gFontDownloaderLog = PR_NewLogModule("fontdownloader");
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#endif /* PR_LOGGING */
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#define LOG(args) PR_LOG(gFontDownloaderLog, PR_LOG_DEBUG, args)
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#define LOG_ENABLED() PR_LOG_TEST(gFontDownloaderLog, PR_LOG_DEBUG)
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2011-04-27 22:04:45 -07:00
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nsFontFaceLoader::nsFontFaceLoader(gfxProxyFontEntry *aProxy, nsIURI *aFontURI,
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2009-01-19 01:21:29 -08:00
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nsUserFontSet *aFontSet, nsIChannel *aChannel)
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2011-04-27 22:04:45 -07:00
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: mFontEntry(aProxy), mFontURI(aFontURI), mFontSet(aFontSet),
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2009-01-19 01:21:29 -08:00
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mChannel(aChannel)
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2008-09-30 20:04:10 -07:00
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{
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}
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nsFontFaceLoader::~nsFontFaceLoader()
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{
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2011-01-05 13:48:48 -08:00
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if (mLoadTimer) {
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mLoadTimer->Cancel();
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mLoadTimer = nsnull;
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}
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2009-01-19 01:21:29 -08:00
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if (mFontSet) {
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mFontSet->RemoveLoader(this);
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}
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2008-09-30 20:04:10 -07:00
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}
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2011-01-05 13:48:48 -08:00
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void
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nsFontFaceLoader::StartedLoading(nsIStreamLoader *aStreamLoader)
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{
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2011-06-11 19:30:16 -07:00
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PRInt32 loadTimeout =
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Preferences::GetInt("gfx.downloadable_fonts.fallback_delay", 3000);
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2011-01-05 13:48:48 -08:00
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if (loadTimeout > 0) {
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mLoadTimer = do_CreateInstance("@mozilla.org/timer;1");
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if (mLoadTimer) {
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mLoadTimer->InitWithFuncCallback(LoadTimerCallback,
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static_cast<void*>(this),
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loadTimeout,
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nsITimer::TYPE_ONE_SHOT);
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}
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} else {
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2011-04-27 22:04:45 -07:00
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mFontEntry->mLoadingState = gfxProxyFontEntry::LOADING_SLOWLY;
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2011-01-05 13:48:48 -08:00
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}
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mStreamLoader = aStreamLoader;
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}
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void
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nsFontFaceLoader::LoadTimerCallback(nsITimer *aTimer, void *aClosure)
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{
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nsFontFaceLoader *loader = static_cast<nsFontFaceLoader*>(aClosure);
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2011-04-27 22:04:45 -07:00
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gfxProxyFontEntry *pe = loader->mFontEntry.get();
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2011-01-05 13:48:48 -08:00
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bool updateUserFontSet = true;
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// If the entry is loading, check whether it's >75% done; if so,
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// we allow another timeout period before showing a fallback font.
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if (pe->mLoadingState == gfxProxyFontEntry::LOADING_STARTED) {
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PRInt32 contentLength;
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loader->mChannel->GetContentLength(&contentLength);
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PRUint32 numBytesRead;
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loader->mStreamLoader->GetNumBytesRead(&numBytesRead);
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if (contentLength > 0 &&
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numBytesRead > 3 * (PRUint32(contentLength) >> 2))
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{
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// More than 3/4 the data has been downloaded, so allow 50% extra
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// time and hope the remainder will arrive before the additional
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// time expires.
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pe->mLoadingState = gfxProxyFontEntry::LOADING_ALMOST_DONE;
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PRUint32 delay;
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loader->mLoadTimer->GetDelay(&delay);
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loader->mLoadTimer->InitWithFuncCallback(LoadTimerCallback,
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static_cast<void*>(loader),
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delay >> 1,
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nsITimer::TYPE_ONE_SHOT);
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updateUserFontSet = false;
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LOG(("fontdownloader (%p) 75%% done, resetting timer\n", loader));
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}
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}
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// If the font is not 75% loaded, or if we've already timed out once
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// before, we mark this entry as "loading slowly", so the fallback
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// font will be used in the meantime, and tell the context to refresh.
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if (updateUserFontSet) {
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pe->mLoadingState = gfxProxyFontEntry::LOADING_SLOWLY;
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nsPresContext *ctx = loader->mFontSet->GetPresContext();
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NS_ASSERTION(ctx, "fontSet doesn't have a presContext?");
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gfxUserFontSet *fontSet;
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if (ctx && (fontSet = ctx->GetUserFontSet()) != nsnull) {
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fontSet->IncrementGeneration();
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ctx->UserFontSetUpdated();
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LOG(("fontdownloader (%p) timeout reflow\n", loader));
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}
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}
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}
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2008-10-29 11:09:50 -07:00
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NS_IMPL_ISUPPORTS1(nsFontFaceLoader, nsIStreamLoaderObserver)
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2008-09-30 20:04:10 -07:00
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NS_IMETHODIMP
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2008-10-29 11:09:50 -07:00
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nsFontFaceLoader::OnStreamComplete(nsIStreamLoader* aLoader,
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nsISupports* aContext,
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nsresult aStatus,
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PRUint32 aStringLen,
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const PRUint8* aString)
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2008-09-30 20:04:10 -07:00
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{
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2009-01-19 01:21:29 -08:00
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if (!mFontSet) {
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// We've been canceled
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return aStatus;
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}
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mFontSet->RemoveLoader(this);
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2008-09-30 20:04:10 -07:00
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#ifdef PR_LOGGING
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if (LOG_ENABLED()) {
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nsCAutoString fontURI;
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mFontURI->GetSpec(fontURI);
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if (NS_SUCCEEDED(aStatus)) {
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LOG(("fontdownloader (%p) download completed - font uri: (%s)\n",
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this, fontURI.get()));
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} else {
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LOG(("fontdownloader (%p) download failed - font uri: (%s) error: %8.8x\n",
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this, fontURI.get(), aStatus));
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}
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}
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#endif
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2009-01-19 01:21:29 -08:00
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nsPresContext *ctx = mFontSet->GetPresContext();
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NS_ASSERTION(ctx && !ctx->PresShell()->IsDestroying(),
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"We should have been canceled already");
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2008-12-11 23:31:51 -08:00
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2008-09-30 20:04:10 -07:00
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// whether an error occurred or not, notify the user font set of the completion
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2009-01-06 20:45:41 -08:00
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gfxUserFontSet *userFontSet = ctx->GetUserFontSet();
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if (!userFontSet) {
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return aStatus;
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}
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2009-08-30 06:55:24 -07:00
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// The userFontSet is responsible for freeing the downloaded data
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// (aString) when finished with it; the pointer is no longer valid
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// after OnLoadComplete returns.
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PRBool fontUpdate = userFontSet->OnLoadComplete(mFontEntry,
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2009-01-19 01:21:29 -08:00
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aString, aStringLen,
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aStatus);
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2008-09-30 20:04:10 -07:00
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// when new font loaded, need to reflow
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if (fontUpdate) {
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2008-12-08 08:08:05 -08:00
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// Update layout for the presence of the new font. Since this is
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// asynchronous, reflows will coalesce.
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2008-12-11 23:31:51 -08:00
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ctx->UserFontSetUpdated();
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2008-12-08 08:08:05 -08:00
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LOG(("fontdownloader (%p) reflow\n", this));
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2008-09-30 20:04:10 -07:00
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}
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2009-08-30 06:55:24 -07:00
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return NS_SUCCESS_ADOPTED_DATA;
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2008-09-30 20:04:10 -07:00
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}
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2009-01-19 01:21:29 -08:00
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void
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nsFontFaceLoader::Cancel()
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{
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2011-04-27 22:04:45 -07:00
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mFontEntry->mLoadingState = gfxProxyFontEntry::NOT_LOADING;
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2009-01-19 01:21:29 -08:00
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mFontSet = nsnull;
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2011-01-05 13:48:48 -08:00
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if (mLoadTimer) {
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mLoadTimer->Cancel();
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mLoadTimer = nsnull;
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}
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2009-01-19 01:21:29 -08:00
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mChannel->Cancel(NS_BINDING_ABORTED);
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}
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2008-11-05 16:32:12 -08:00
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nsresult
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2008-12-11 23:31:51 -08:00
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nsFontFaceLoader::CheckLoadAllowed(nsIPrincipal* aSourcePrincipal,
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nsIURI* aTargetURI,
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nsISupports* aContext)
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2008-09-30 20:04:10 -07:00
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{
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2008-11-05 16:32:12 -08:00
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nsresult rv;
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2008-12-11 23:31:51 -08:00
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if (!aSourcePrincipal)
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return NS_OK;
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2010-05-23 23:45:18 -07:00
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// check with the security manager
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nsIScriptSecurityManager *secMan = nsContentUtils::GetSecurityManager();
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rv = secMan->CheckLoadURIWithPrincipal(aSourcePrincipal, aTargetURI,
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nsIScriptSecurityManager::STANDARD);
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if (NS_FAILED(rv)) {
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return rv;
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}
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2008-12-11 23:31:51 -08:00
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// check content policy
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PRInt16 shouldLoad = nsIContentPolicy::ACCEPT;
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rv = NS_CheckContentLoadPolicy(nsIContentPolicy::TYPE_FONT,
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aTargetURI,
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aSourcePrincipal,
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aContext,
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EmptyCString(), // mime type
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nsnull,
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&shouldLoad,
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nsContentUtils::GetContentPolicy(),
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nsContentUtils::GetSecurityManager());
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if (NS_FAILED(rv) || NS_CP_REJECTED(shouldLoad)) {
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return NS_ERROR_CONTENT_BLOCKED;
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}
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return NS_OK;
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}
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nsUserFontSet::nsUserFontSet(nsPresContext *aContext)
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: mPresContext(aContext)
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{
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NS_ASSERTION(mPresContext, "null context passed to nsUserFontSet");
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2009-01-19 01:21:29 -08:00
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mLoaders.Init();
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2008-12-11 23:31:51 -08:00
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}
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nsUserFontSet::~nsUserFontSet()
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{
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2009-01-19 01:21:29 -08:00
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NS_ASSERTION(mLoaders.Count() == 0, "mLoaders should have been emptied");
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}
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2008-12-11 23:31:51 -08:00
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2009-01-19 01:21:29 -08:00
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static PLDHashOperator DestroyIterator(nsPtrHashKey<nsFontFaceLoader>* aKey,
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void* aUserArg)
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{
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aKey->GetKey()->Cancel();
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return PL_DHASH_REMOVE;
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}
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void
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nsUserFontSet::Destroy()
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{
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mPresContext = nsnull;
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mLoaders.EnumerateEntries(DestroyIterator, nsnull);
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}
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void
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nsUserFontSet::RemoveLoader(nsFontFaceLoader *aLoader)
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{
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mLoaders.RemoveEntry(aLoader);
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2008-12-11 23:31:51 -08:00
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}
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2008-09-30 20:04:10 -07:00
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2008-12-11 23:31:51 -08:00
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nsresult
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2011-04-27 22:04:45 -07:00
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nsUserFontSet::StartLoad(gfxProxyFontEntry *aProxy,
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const gfxFontFaceSrc *aFontFaceSrc)
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2008-12-11 23:31:51 -08:00
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{
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nsresult rv;
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// check same-site origin
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nsIPresShell *ps = mPresContext->PresShell();
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2008-09-30 20:04:10 -07:00
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if (!ps)
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2008-11-05 16:32:12 -08:00
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return NS_ERROR_FAILURE;
|
|
|
|
|
2008-11-26 19:50:16 -08:00
|
|
|
NS_ASSERTION(aFontFaceSrc && !aFontFaceSrc->mIsLocal,
|
|
|
|
"bad font face url passed to fontloader");
|
|
|
|
NS_ASSERTION(aFontFaceSrc->mURI, "null font uri");
|
|
|
|
if (!aFontFaceSrc->mURI)
|
2008-11-05 16:32:12 -08:00
|
|
|
return NS_ERROR_FAILURE;
|
|
|
|
|
2008-11-26 19:50:16 -08:00
|
|
|
// use document principal, original principal if flag set
|
|
|
|
// this enables user stylesheets to load font files via
|
|
|
|
// @font-face rules
|
2008-11-05 16:32:12 -08:00
|
|
|
nsCOMPtr<nsIPrincipal> principal = ps->GetDocument()->NodePrincipal();
|
|
|
|
|
2008-11-26 19:50:16 -08:00
|
|
|
NS_ASSERTION(aFontFaceSrc->mOriginPrincipal,
|
|
|
|
"null origin principal in @font-face rule");
|
|
|
|
if (aFontFaceSrc->mUseOriginPrincipal) {
|
|
|
|
principal = do_QueryInterface(aFontFaceSrc->mOriginPrincipal);
|
|
|
|
}
|
|
|
|
|
2008-12-11 23:31:51 -08:00
|
|
|
rv = nsFontFaceLoader::CheckLoadAllowed(principal, aFontFaceSrc->mURI,
|
|
|
|
ps->GetDocument());
|
2008-11-05 16:32:12 -08:00
|
|
|
if (NS_FAILED(rv)) {
|
2008-11-26 19:50:16 -08:00
|
|
|
#ifdef PR_LOGGING
|
|
|
|
if (LOG_ENABLED()) {
|
|
|
|
nsCAutoString fontURI, referrerURI;
|
|
|
|
aFontFaceSrc->mURI->GetSpec(fontURI);
|
|
|
|
if (aFontFaceSrc->mReferrer)
|
|
|
|
aFontFaceSrc->mReferrer->GetSpec(referrerURI);
|
|
|
|
LOG(("fontdownloader download blocked - font uri: (%s) "
|
|
|
|
"referrer uri: (%s) err: %8.8x\n",
|
|
|
|
fontURI.get(), referrerURI.get(), rv));
|
|
|
|
}
|
|
|
|
#endif
|
2008-11-05 16:32:12 -08:00
|
|
|
return rv;
|
|
|
|
}
|
2009-01-19 01:21:29 -08:00
|
|
|
|
|
|
|
nsCOMPtr<nsIStreamLoader> streamLoader;
|
|
|
|
nsCOMPtr<nsILoadGroup> loadGroup(ps->GetDocument()->GetDocumentLoadGroup());
|
|
|
|
|
|
|
|
nsCOMPtr<nsIChannel> channel;
|
2010-04-23 12:53:41 -07:00
|
|
|
// get Content Security Policy from principal to pass into channel
|
|
|
|
nsCOMPtr<nsIChannelPolicy> channelPolicy;
|
|
|
|
nsCOMPtr<nsIContentSecurityPolicy> csp;
|
|
|
|
rv = principal->GetCsp(getter_AddRefs(csp));
|
|
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (csp) {
|
|
|
|
channelPolicy = do_CreateInstance("@mozilla.org/nschannelpolicy;1");
|
|
|
|
channelPolicy->SetContentSecurityPolicy(csp);
|
|
|
|
channelPolicy->SetLoadType(nsIContentPolicy::TYPE_FONT);
|
|
|
|
}
|
2009-01-19 01:21:29 -08:00
|
|
|
rv = NS_NewChannel(getter_AddRefs(channel),
|
|
|
|
aFontFaceSrc->mURI,
|
|
|
|
nsnull,
|
|
|
|
loadGroup,
|
|
|
|
nsnull,
|
2010-04-23 12:53:41 -07:00
|
|
|
nsIRequest::LOAD_NORMAL,
|
|
|
|
channelPolicy);
|
|
|
|
|
2009-01-19 01:21:29 -08:00
|
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
|
|
|
|
nsRefPtr<nsFontFaceLoader> fontLoader =
|
2011-04-27 22:04:45 -07:00
|
|
|
new nsFontFaceLoader(aProxy, aFontFaceSrc->mURI, this, channel);
|
2009-01-19 01:21:29 -08:00
|
|
|
|
2008-10-29 11:09:50 -07:00
|
|
|
if (!fontLoader)
|
2008-11-05 16:32:12 -08:00
|
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
2008-09-30 20:04:10 -07:00
|
|
|
|
2008-10-29 11:09:50 -07:00
|
|
|
#ifdef PR_LOGGING
|
|
|
|
if (LOG_ENABLED()) {
|
2008-11-05 16:32:12 -08:00
|
|
|
nsCAutoString fontURI, referrerURI;
|
2008-11-26 19:50:16 -08:00
|
|
|
aFontFaceSrc->mURI->GetSpec(fontURI);
|
|
|
|
if (aFontFaceSrc->mReferrer)
|
|
|
|
aFontFaceSrc->mReferrer->GetSpec(referrerURI);
|
2008-11-05 16:32:12 -08:00
|
|
|
LOG(("fontdownloader (%p) download start - font uri: (%s) "
|
|
|
|
"referrer uri: (%s)\n",
|
|
|
|
fontLoader.get(), fontURI.get(), referrerURI.get()));
|
2008-10-29 11:09:50 -07:00
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2008-11-05 16:32:12 -08:00
|
|
|
nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(channel));
|
|
|
|
if (httpChannel)
|
2008-11-26 19:50:16 -08:00
|
|
|
httpChannel->SetReferrer(aFontFaceSrc->mReferrer);
|
2008-11-05 16:32:12 -08:00
|
|
|
rv = NS_NewStreamLoader(getter_AddRefs(streamLoader), fontLoader);
|
|
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
|
2008-11-26 19:50:16 -08:00
|
|
|
PRBool inherits = PR_FALSE;
|
|
|
|
rv = NS_URIChainHasFlags(aFontFaceSrc->mURI,
|
|
|
|
nsIProtocolHandler::URI_INHERITS_SECURITY_CONTEXT,
|
|
|
|
&inherits);
|
|
|
|
if (NS_SUCCEEDED(rv) && inherits) {
|
|
|
|
// allow data, javascript, etc URI's
|
2008-11-05 16:32:12 -08:00
|
|
|
rv = channel->AsyncOpen(streamLoader, nsnull);
|
|
|
|
} else {
|
|
|
|
nsCOMPtr<nsIStreamListener> listener =
|
2011-03-28 13:18:45 -07:00
|
|
|
new nsCORSListenerProxy(streamLoader, principal, channel,
|
|
|
|
PR_FALSE, &rv);
|
2009-01-31 00:58:42 -08:00
|
|
|
if (NS_FAILED(rv)) {
|
|
|
|
fontLoader->DropChannel(); // explicitly need to break ref cycle
|
|
|
|
}
|
2008-11-05 16:32:12 -08:00
|
|
|
NS_ENSURE_TRUE(listener, NS_ERROR_OUT_OF_MEMORY);
|
|
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
|
|
|
|
rv = channel->AsyncOpen(listener, nsnull);
|
|
|
|
}
|
|
|
|
|
2009-01-19 01:21:29 -08:00
|
|
|
if (NS_SUCCEEDED(rv)) {
|
|
|
|
mLoaders.PutEntry(fontLoader);
|
2011-01-05 13:48:48 -08:00
|
|
|
fontLoader->StartedLoading(streamLoader);
|
2009-01-19 01:21:29 -08:00
|
|
|
}
|
|
|
|
|
2008-11-05 16:32:12 -08:00
|
|
|
return rv;
|
|
|
|
}
|
2011-04-12 03:53:20 -07:00
|
|
|
|
|
|
|
PRBool
|
|
|
|
nsUserFontSet::UpdateRules(const nsTArray<nsFontFaceRuleContainer>& aRules)
|
|
|
|
{
|
2011-05-01 08:10:20 -07:00
|
|
|
PRBool modified = PR_FALSE;
|
|
|
|
|
2011-04-27 22:04:45 -07:00
|
|
|
// destroy any current loaders, as the entries they refer to
|
|
|
|
// may be about to get replaced
|
2011-05-01 08:10:20 -07:00
|
|
|
if (mLoaders.Count() > 0) {
|
|
|
|
modified = PR_TRUE; // trigger reflow so that any necessary downloads
|
|
|
|
// will be reinitiated
|
|
|
|
}
|
2011-04-27 22:04:45 -07:00
|
|
|
mLoaders.EnumerateEntries(DestroyIterator, nsnull);
|
|
|
|
|
2011-04-12 03:53:20 -07:00
|
|
|
nsTArray<FontFaceRuleRecord> oldRules;
|
|
|
|
mRules.SwapElements(oldRules);
|
|
|
|
|
|
|
|
// destroy the font family records; we need to re-create them
|
|
|
|
// because we might end up with faces in a different order,
|
|
|
|
// even if they're the same font entries as before
|
|
|
|
mFontFamilies.Clear();
|
|
|
|
|
|
|
|
for (PRUint32 i = 0, i_end = aRules.Length(); i < i_end; ++i) {
|
|
|
|
// insert each rule into our list, migrating old font entries if possible
|
|
|
|
// rather than creating new ones; set modified to true if we detect
|
|
|
|
// that rule ordering has changed, or if a new entry is created
|
|
|
|
InsertRule(aRules[i].mRule, aRules[i].mSheetType, oldRules, modified);
|
|
|
|
}
|
|
|
|
|
|
|
|
// if any rules are left in the old list, note that the set has changed
|
|
|
|
if (oldRules.Length() > 0) {
|
|
|
|
modified = PR_TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (modified) {
|
|
|
|
IncrementGeneration();
|
|
|
|
}
|
|
|
|
|
|
|
|
return modified;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
nsUserFontSet::InsertRule(nsCSSFontFaceRule *aRule, PRUint8 aSheetType,
|
|
|
|
nsTArray<FontFaceRuleRecord>& aOldRules,
|
|
|
|
PRBool& aFontSetModified)
|
|
|
|
{
|
2011-04-07 18:23:46 -07:00
|
|
|
NS_ABORT_IF_FALSE(aRule->GetType() == mozilla::css::Rule::FONT_FACE_RULE,
|
2011-04-12 03:53:20 -07:00
|
|
|
"InsertRule passed a non-fontface CSS rule");
|
|
|
|
|
|
|
|
// set up family name
|
|
|
|
nsAutoString fontfamily;
|
|
|
|
nsCSSValue val;
|
|
|
|
PRUint32 unit;
|
|
|
|
|
|
|
|
aRule->GetDesc(eCSSFontDesc_Family, val);
|
|
|
|
unit = val.GetUnit();
|
|
|
|
if (unit == eCSSUnit_String) {
|
|
|
|
val.GetStringValue(fontfamily);
|
|
|
|
} else {
|
|
|
|
NS_ASSERTION(unit == eCSSUnit_Null,
|
|
|
|
"@font-face family name has unexpected unit");
|
|
|
|
}
|
|
|
|
if (fontfamily.IsEmpty()) {
|
|
|
|
// If there is no family name, this rule cannot contribute a
|
|
|
|
// usable font, so there is no point in processing it further.
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
// first, we check in oldRules; if the rule exists there, just move it
|
|
|
|
// to the new rule list, and put the entry into the appropriate family
|
|
|
|
for (PRUint32 i = 0; i < aOldRules.Length(); ++i) {
|
|
|
|
const FontFaceRuleRecord& ruleRec = aOldRules[i];
|
|
|
|
if (ruleRec.mContainer.mRule == aRule &&
|
|
|
|
ruleRec.mContainer.mSheetType == aSheetType) {
|
|
|
|
AddFontFace(fontfamily, ruleRec.mFontEntry);
|
|
|
|
mRules.AppendElement(ruleRec);
|
|
|
|
aOldRules.RemoveElementAt(i);
|
|
|
|
// note the set has been modified if an old rule was skipped to find
|
|
|
|
// this one - something has been dropped, or ordering changed
|
|
|
|
if (i > 0) {
|
|
|
|
aFontSetModified = PR_TRUE;
|
|
|
|
}
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// this is a new rule:
|
|
|
|
|
|
|
|
PRUint32 weight = NS_STYLE_FONT_WEIGHT_NORMAL;
|
|
|
|
PRUint32 stretch = NS_STYLE_FONT_STRETCH_NORMAL;
|
|
|
|
PRUint32 italicStyle = FONT_STYLE_NORMAL;
|
|
|
|
nsString featureSettings, languageOverride;
|
|
|
|
|
|
|
|
// set up weight
|
|
|
|
aRule->GetDesc(eCSSFontDesc_Weight, val);
|
|
|
|
unit = val.GetUnit();
|
|
|
|
if (unit == eCSSUnit_Integer || unit == eCSSUnit_Enumerated) {
|
|
|
|
weight = val.GetIntValue();
|
|
|
|
} else if (unit == eCSSUnit_Normal) {
|
|
|
|
weight = NS_STYLE_FONT_WEIGHT_NORMAL;
|
|
|
|
} else {
|
|
|
|
NS_ASSERTION(unit == eCSSUnit_Null,
|
|
|
|
"@font-face weight has unexpected unit");
|
|
|
|
}
|
|
|
|
|
|
|
|
// set up stretch
|
|
|
|
aRule->GetDesc(eCSSFontDesc_Stretch, val);
|
|
|
|
unit = val.GetUnit();
|
|
|
|
if (unit == eCSSUnit_Enumerated) {
|
|
|
|
stretch = val.GetIntValue();
|
|
|
|
} else if (unit == eCSSUnit_Normal) {
|
|
|
|
stretch = NS_STYLE_FONT_STRETCH_NORMAL;
|
|
|
|
} else {
|
|
|
|
NS_ASSERTION(unit == eCSSUnit_Null,
|
|
|
|
"@font-face stretch has unexpected unit");
|
|
|
|
}
|
|
|
|
|
|
|
|
// set up font style
|
|
|
|
aRule->GetDesc(eCSSFontDesc_Style, val);
|
|
|
|
unit = val.GetUnit();
|
|
|
|
if (unit == eCSSUnit_Enumerated) {
|
|
|
|
italicStyle = val.GetIntValue();
|
|
|
|
} else if (unit == eCSSUnit_Normal) {
|
|
|
|
italicStyle = FONT_STYLE_NORMAL;
|
|
|
|
} else {
|
|
|
|
NS_ASSERTION(unit == eCSSUnit_Null,
|
|
|
|
"@font-face style has unexpected unit");
|
|
|
|
}
|
|
|
|
|
|
|
|
// set up font features
|
|
|
|
aRule->GetDesc(eCSSFontDesc_FontFeatureSettings, val);
|
|
|
|
unit = val.GetUnit();
|
|
|
|
if (unit == eCSSUnit_Normal) {
|
|
|
|
// empty feature string
|
|
|
|
} else if (unit == eCSSUnit_String) {
|
|
|
|
val.GetStringValue(featureSettings);
|
|
|
|
} else {
|
|
|
|
NS_ASSERTION(unit == eCSSUnit_Null,
|
|
|
|
"@font-face font-feature-settings has unexpected unit");
|
|
|
|
}
|
|
|
|
|
|
|
|
// set up font language override
|
|
|
|
aRule->GetDesc(eCSSFontDesc_FontLanguageOverride, val);
|
|
|
|
unit = val.GetUnit();
|
|
|
|
if (unit == eCSSUnit_Normal) {
|
|
|
|
// empty feature string
|
|
|
|
} else if (unit == eCSSUnit_String) {
|
|
|
|
val.GetStringValue(languageOverride);
|
|
|
|
} else {
|
|
|
|
NS_ASSERTION(unit == eCSSUnit_Null,
|
|
|
|
"@font-face font-language-override has unexpected unit");
|
|
|
|
}
|
|
|
|
|
|
|
|
// set up src array
|
|
|
|
nsTArray<gfxFontFaceSrc> srcArray;
|
|
|
|
|
|
|
|
aRule->GetDesc(eCSSFontDesc_Src, val);
|
|
|
|
unit = val.GetUnit();
|
|
|
|
if (unit == eCSSUnit_Array) {
|
|
|
|
nsCSSValue::Array *srcArr = val.GetArrayValue();
|
|
|
|
size_t numSrc = srcArr->Count();
|
|
|
|
|
|
|
|
for (size_t i = 0; i < numSrc; i++) {
|
|
|
|
val = srcArr->Item(i);
|
|
|
|
unit = val.GetUnit();
|
|
|
|
gfxFontFaceSrc *face = srcArray.AppendElements(1);
|
|
|
|
if (!face)
|
|
|
|
return;
|
|
|
|
|
|
|
|
switch (unit) {
|
|
|
|
|
|
|
|
case eCSSUnit_Local_Font:
|
|
|
|
val.GetStringValue(face->mLocalName);
|
|
|
|
face->mIsLocal = PR_TRUE;
|
|
|
|
face->mURI = nsnull;
|
|
|
|
face->mFormatFlags = 0;
|
|
|
|
break;
|
|
|
|
case eCSSUnit_URL:
|
|
|
|
face->mIsLocal = PR_FALSE;
|
|
|
|
face->mURI = val.GetURLValue();
|
|
|
|
NS_ASSERTION(face->mURI, "null url in @font-face rule");
|
|
|
|
face->mReferrer = val.GetURLStructValue()->mReferrer;
|
|
|
|
face->mOriginPrincipal = val.GetURLStructValue()->mOriginPrincipal;
|
|
|
|
NS_ASSERTION(face->mOriginPrincipal, "null origin principal in @font-face rule");
|
|
|
|
|
|
|
|
// agent and user stylesheets are treated slightly differently,
|
|
|
|
// the same-site origin check and access control headers are
|
|
|
|
// enforced against the sheet principal rather than the document
|
|
|
|
// principal to allow user stylesheets to include @font-face rules
|
|
|
|
face->mUseOriginPrincipal = (aSheetType == nsStyleSet::eUserSheet ||
|
|
|
|
aSheetType == nsStyleSet::eAgentSheet);
|
|
|
|
|
|
|
|
face->mLocalName.Truncate();
|
|
|
|
face->mFormatFlags = 0;
|
|
|
|
while (i + 1 < numSrc && (val = srcArr->Item(i+1),
|
|
|
|
val.GetUnit() == eCSSUnit_Font_Format)) {
|
|
|
|
nsDependentString valueString(val.GetStringBufferValue());
|
|
|
|
if (valueString.LowerCaseEqualsASCII("woff")) {
|
|
|
|
face->mFormatFlags |= FLAG_FORMAT_WOFF;
|
|
|
|
} else if (valueString.LowerCaseEqualsASCII("opentype")) {
|
|
|
|
face->mFormatFlags |= FLAG_FORMAT_OPENTYPE;
|
|
|
|
} else if (valueString.LowerCaseEqualsASCII("truetype")) {
|
|
|
|
face->mFormatFlags |= FLAG_FORMAT_TRUETYPE;
|
|
|
|
} else if (valueString.LowerCaseEqualsASCII("truetype-aat")) {
|
|
|
|
face->mFormatFlags |= FLAG_FORMAT_TRUETYPE_AAT;
|
|
|
|
} else if (valueString.LowerCaseEqualsASCII("embedded-opentype")) {
|
|
|
|
face->mFormatFlags |= FLAG_FORMAT_EOT;
|
|
|
|
} else if (valueString.LowerCaseEqualsASCII("svg")) {
|
|
|
|
face->mFormatFlags |= FLAG_FORMAT_SVG;
|
|
|
|
} else {
|
|
|
|
// unknown format specified, mark to distinguish from the
|
|
|
|
// case where no format hints are specified
|
|
|
|
face->mFormatFlags |= FLAG_FORMAT_UNKNOWN;
|
|
|
|
}
|
|
|
|
i++;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
NS_ASSERTION(unit == eCSSUnit_Local_Font || unit == eCSSUnit_URL,
|
|
|
|
"strange unit type in font-face src array");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
NS_ASSERTION(unit == eCSSUnit_Null, "@font-face src has unexpected unit");
|
|
|
|
}
|
|
|
|
|
|
|
|
if (srcArray.Length() > 0) {
|
|
|
|
FontFaceRuleRecord ruleRec;
|
|
|
|
ruleRec.mContainer.mRule = aRule;
|
|
|
|
ruleRec.mContainer.mSheetType = aSheetType;
|
|
|
|
ruleRec.mFontEntry = AddFontFace(fontfamily, srcArray,
|
|
|
|
weight, stretch, italicStyle,
|
|
|
|
featureSettings, languageOverride);
|
|
|
|
if (ruleRec.mFontEntry) {
|
|
|
|
mRules.AppendElement(ruleRec);
|
|
|
|
}
|
|
|
|
// this was a new rule and fontEntry, so note that the set was modified
|
|
|
|
aFontSetModified = PR_TRUE;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
nsUserFontSet::ReplaceFontEntry(gfxProxyFontEntry *aProxy,
|
|
|
|
gfxFontEntry *aFontEntry)
|
|
|
|
{
|
|
|
|
for (PRUint32 i = 0; i < mRules.Length(); ++i) {
|
|
|
|
if (mRules[i].mFontEntry == aProxy) {
|
|
|
|
mRules[i].mFontEntry = aFontEntry;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
static_cast<gfxMixedFontFamily*>(aProxy->Family())->
|
|
|
|
ReplaceFontEntry(aProxy, aFontEntry);
|
|
|
|
}
|
2011-06-15 23:31:36 -07:00
|
|
|
|
|
|
|
nsCSSFontFaceRule*
|
|
|
|
nsUserFontSet::FindRuleForEntry(gfxFontEntry *aFontEntry)
|
|
|
|
{
|
|
|
|
for (PRUint32 i = 0; i < mRules.Length(); ++i) {
|
|
|
|
if (mRules[i].mFontEntry == aFontEntry) {
|
|
|
|
return mRules[i].mContainer.mRule;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return nsnull;
|
|
|
|
}
|