зеркало из https://github.com/mozilla/pjs.git
1781 строка
51 KiB
C++
1781 строка
51 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 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 Communicator client code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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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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#include "nspr.h"
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#include "prlog.h"
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#include "nsDocLoader.h"
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#include "nsCURILoader.h"
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#include "nsNetUtil.h"
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#include "nsIHttpChannel.h"
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#include "nsIWebProgressListener2.h"
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#include "nsIServiceManager.h"
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#include "nsXPIDLString.h"
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#include "nsIURL.h"
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#include "nsCOMPtr.h"
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#include "nscore.h"
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#include "nsWeakPtr.h"
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#include "nsAutoPtr.h"
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#include "nsIDOMWindow.h"
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#include "nsIStringBundle.h"
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#include "nsIScriptSecurityManager.h"
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#include "nsITransport.h"
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#include "nsISocketTransport.h"
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#include "nsIDOMDocument.h"
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#include "nsIDocument.h"
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#include "nsPresContext.h"
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#include "nsIAsyncVerifyRedirectCallback.h"
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static NS_DEFINE_CID(kThisImplCID, NS_THIS_DOCLOADER_IMPL_CID);
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#if defined(PR_LOGGING)
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//
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// Log module for nsIDocumentLoader logging...
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//
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// To enable logging (see prlog.h for full details):
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//
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// set NSPR_LOG_MODULES=DocLoader:5
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// set NSPR_LOG_FILE=nspr.log
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//
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// this enables PR_LOG_DEBUG level information and places all output in
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// the file nspr.log
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//
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PRLogModuleInfo* gDocLoaderLog = nsnull;
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#endif /* PR_LOGGING */
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#if defined(DEBUG)
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void GetURIStringFromRequest(nsIRequest* request, nsACString &name)
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{
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if (request)
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request->GetName(name);
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else
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name.AssignLiteral("???");
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}
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#endif /* DEBUG */
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struct nsRequestInfo : public PLDHashEntryHdr
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{
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nsRequestInfo(const void *key)
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: mKey(key), mCurrentProgress(0), mMaxProgress(0), mUploading(PR_FALSE)
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, mIsDone(PR_FALSE)
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{
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}
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nsIRequest* Request() {
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return static_cast<nsIRequest*>(const_cast<void*>(mKey));
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}
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const void* mKey; // Must be first for the pldhash stubs to work
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PRInt64 mCurrentProgress;
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PRInt64 mMaxProgress;
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PRBool mUploading;
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PRBool mIsDone;
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nsString mLastStatus;
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nsresult mLastStatusCode;
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};
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static PRBool
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RequestInfoHashInitEntry(PLDHashTable *table, PLDHashEntryHdr *entry,
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const void *key)
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{
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// Initialize the entry with placement new
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new (entry) nsRequestInfo(key);
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return PR_TRUE;
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}
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static void
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RequestInfoHashClearEntry(PLDHashTable *table, PLDHashEntryHdr *entry)
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{
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nsRequestInfo* info = static_cast<nsRequestInfo *>(entry);
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info->~nsRequestInfo();
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}
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struct nsListenerInfo {
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nsListenerInfo(nsIWeakReference *aListener, unsigned long aNotifyMask)
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: mWeakListener(aListener),
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mNotifyMask(aNotifyMask)
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{
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}
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// Weak pointer for the nsIWebProgressListener...
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nsWeakPtr mWeakListener;
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// Mask indicating which notifications the listener wants to receive.
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unsigned long mNotifyMask;
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};
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nsDocLoader::nsDocLoader()
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: mParent(nsnull),
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mListenerInfoList(8),
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mCurrentSelfProgress(0),
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mMaxSelfProgress(0),
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mCurrentTotalProgress(0),
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mMaxTotalProgress(0),
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mCompletedTotalProgress(0),
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mIsLoadingDocument(PR_FALSE),
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mIsRestoringDocument(PR_FALSE),
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mDontFlushLayout(PR_FALSE),
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mIsFlushingLayout(PR_FALSE)
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{
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#if defined(PR_LOGGING)
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if (nsnull == gDocLoaderLog) {
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gDocLoaderLog = PR_NewLogModule("DocLoader");
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}
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#endif /* PR_LOGGING */
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static PLDHashTableOps hash_table_ops =
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{
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PL_DHashAllocTable,
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PL_DHashFreeTable,
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PL_DHashVoidPtrKeyStub,
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PL_DHashMatchEntryStub,
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PL_DHashMoveEntryStub,
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RequestInfoHashClearEntry,
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PL_DHashFinalizeStub,
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RequestInfoHashInitEntry
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};
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if (!PL_DHashTableInit(&mRequestInfoHash, &hash_table_ops, nsnull,
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sizeof(nsRequestInfo), 16)) {
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mRequestInfoHash.ops = nsnull;
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}
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ClearInternalProgress();
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PR_LOG(gDocLoaderLog, PR_LOG_DEBUG,
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("DocLoader:%p: created.\n", this));
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}
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nsresult
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nsDocLoader::SetDocLoaderParent(nsDocLoader *aParent)
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{
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mParent = aParent;
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return NS_OK;
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}
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nsresult
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nsDocLoader::Init()
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{
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if (!mRequestInfoHash.ops) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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nsresult rv = NS_NewLoadGroup(getter_AddRefs(mLoadGroup), this);
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if (NS_FAILED(rv)) return rv;
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PR_LOG(gDocLoaderLog, PR_LOG_DEBUG,
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("DocLoader:%p: load group %x.\n", this, mLoadGroup.get()));
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return NS_OK;
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}
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nsDocLoader::~nsDocLoader()
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{
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/*
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|ClearWeakReferences()| here is intended to prevent people holding weak references
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from re-entering this destructor since |QueryReferent()| will |AddRef()| me, and the
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subsequent |Release()| will try to destroy me. At this point there should be only
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weak references remaining (otherwise, we wouldn't be getting destroyed).
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An alternative would be incrementing our refcount (consider it a compressed flag
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saying "Don't re-destroy."). I haven't yet decided which is better. [scc]
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*/
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// XXXbz now that NS_IMPL_RELEASE stabilizes by setting refcount to 1, is
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// this needed?
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ClearWeakReferences();
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Destroy();
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PR_LOG(gDocLoaderLog, PR_LOG_DEBUG,
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("DocLoader:%p: deleted.\n", this));
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if (mRequestInfoHash.ops) {
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PL_DHashTableFinish(&mRequestInfoHash);
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}
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}
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/*
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* Implementation of ISupports methods...
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*/
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NS_IMPL_THREADSAFE_ADDREF(nsDocLoader)
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NS_IMPL_THREADSAFE_RELEASE(nsDocLoader)
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NS_INTERFACE_MAP_BEGIN(nsDocLoader)
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIRequestObserver)
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NS_INTERFACE_MAP_ENTRY(nsIRequestObserver)
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NS_INTERFACE_MAP_ENTRY(nsIDocumentLoader)
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NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
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NS_INTERFACE_MAP_ENTRY(nsIWebProgress)
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NS_INTERFACE_MAP_ENTRY(nsIProgressEventSink)
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NS_INTERFACE_MAP_ENTRY(nsIInterfaceRequestor)
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NS_INTERFACE_MAP_ENTRY(nsIChannelEventSink)
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NS_INTERFACE_MAP_ENTRY(nsISecurityEventSink)
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NS_INTERFACE_MAP_ENTRY(nsISupportsPriority)
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if (aIID.Equals(kThisImplCID))
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foundInterface = static_cast<nsIDocumentLoader *>(this);
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else
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NS_INTERFACE_MAP_END
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/*
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* Implementation of nsIInterfaceRequestor methods...
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*/
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NS_IMETHODIMP nsDocLoader::GetInterface(const nsIID& aIID, void** aSink)
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{
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nsresult rv = NS_ERROR_NO_INTERFACE;
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NS_ENSURE_ARG_POINTER(aSink);
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if(aIID.Equals(NS_GET_IID(nsILoadGroup))) {
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*aSink = mLoadGroup;
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NS_IF_ADDREF((nsISupports*)*aSink);
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rv = NS_OK;
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} else {
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rv = QueryInterface(aIID, aSink);
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}
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return rv;
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}
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/* static */
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already_AddRefed<nsDocLoader>
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nsDocLoader::GetAsDocLoader(nsISupports* aSupports)
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{
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if (!aSupports) {
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return nsnull;
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}
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nsDocLoader* ptr;
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CallQueryInterface(aSupports, &ptr);
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return ptr;
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}
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/* static */
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nsresult
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nsDocLoader::AddDocLoaderAsChildOfRoot(nsDocLoader* aDocLoader)
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{
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nsresult rv;
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nsCOMPtr<nsIDocumentLoader> docLoaderService =
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do_GetService(NS_DOCUMENTLOADER_SERVICE_CONTRACTID, &rv);
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NS_ENSURE_SUCCESS(rv, rv);
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nsRefPtr<nsDocLoader> rootDocLoader = GetAsDocLoader(docLoaderService);
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NS_ENSURE_TRUE(rootDocLoader, NS_ERROR_UNEXPECTED);
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return rootDocLoader->AddChildLoader(aDocLoader);
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}
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NS_IMETHODIMP
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nsDocLoader::Stop(void)
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{
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nsresult rv = NS_OK;
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PRInt32 count, i;
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PR_LOG(gDocLoaderLog, PR_LOG_DEBUG,
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("DocLoader:%p: Stop() called\n", this));
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count = mChildList.Count();
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nsCOMPtr<nsIDocumentLoader> loader;
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for (i=0; i < count; i++) {
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loader = ChildAt(i);
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if (loader) {
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(void) loader->Stop();
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}
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}
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if (mLoadGroup)
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rv = mLoadGroup->Cancel(NS_BINDING_ABORTED);
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// Don't report that we're flushing layout so IsBusy returns false after a
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// Stop call.
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mIsFlushingLayout = PR_FALSE;
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// Clear out mChildrenInOnload. We want to make sure to fire our
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// onload at this point, and there's no issue with mChildrenInOnload
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// after this, since mDocumentRequest will be null after the
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// DocLoaderIsEmpty() call.
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mChildrenInOnload.Clear();
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// Make sure to call DocLoaderIsEmpty now so that we reset mDocumentRequest,
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// etc, as needed. We could be getting into here from a subframe onload, in
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// which case the call to DocLoaderIsEmpty() is coming but hasn't quite
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// happened yet, Canceling the loadgroup did nothing (because it was already
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// empty), and we're about to start a new load (which is what triggered this
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// Stop() call).
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// XXXbz If the child frame loadgroups were requests in mLoadgroup, I suspect
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// we wouldn't need the call here....
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NS_ASSERTION(!IsBusy(), "Shouldn't be busy here");
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DocLoaderIsEmpty(PR_FALSE);
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return rv;
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}
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PRBool
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nsDocLoader::IsBusy()
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{
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nsresult rv;
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//
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// A document loader is busy if either:
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//
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// 1. One of its children is in the middle of an onload handler. Note that
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// the handler may have already removed this child from mChildList!
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// 2. It is currently loading a document and either has parts of it still
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// loading, or has a busy child docloader.
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// 3. It's currently flushing layout in DocLoaderIsEmpty().
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//
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if (mChildrenInOnload.Count() || mIsFlushingLayout) {
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return PR_TRUE;
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}
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/* Is this document loader busy? */
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if (!mIsLoadingDocument) {
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return PR_FALSE;
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}
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PRBool busy;
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rv = mLoadGroup->IsPending(&busy);
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if (NS_FAILED(rv)) {
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return PR_FALSE;
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}
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if (busy) {
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return PR_TRUE;
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}
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/* check its child document loaders... */
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PRInt32 count, i;
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count = mChildList.Count();
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for (i=0; i < count; i++) {
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nsIDocumentLoader* loader = ChildAt(i);
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// This is a safe cast, because we only put nsDocLoader objects into the
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// array
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if (loader && static_cast<nsDocLoader*>(loader)->IsBusy())
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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NS_IMETHODIMP
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nsDocLoader::GetContainer(nsISupports** aResult)
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{
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NS_ADDREF(*aResult = static_cast<nsIDocumentLoader*>(this));
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDocLoader::GetLoadGroup(nsILoadGroup** aResult)
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{
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nsresult rv = NS_OK;
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if (nsnull == aResult) {
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rv = NS_ERROR_NULL_POINTER;
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} else {
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*aResult = mLoadGroup;
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NS_IF_ADDREF(*aResult);
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}
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return rv;
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}
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void
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nsDocLoader::Destroy()
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{
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Stop();
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// Remove the document loader from the parent list of loaders...
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if (mParent)
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{
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mParent->RemoveChildLoader(this);
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}
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// Release all the information about network requests...
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ClearRequestInfoHash();
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// Release all the information about registered listeners...
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PRInt32 count = mListenerInfoList.Count();
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for(PRInt32 i = 0; i < count; i++) {
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nsListenerInfo *info =
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static_cast<nsListenerInfo*>(mListenerInfoList.ElementAt(i));
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delete info;
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}
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mListenerInfoList.Clear();
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mListenerInfoList.Compact();
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mDocumentRequest = 0;
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if (mLoadGroup)
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mLoadGroup->SetGroupObserver(nsnull);
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DestroyChildren();
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}
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void
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nsDocLoader::DestroyChildren()
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{
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PRInt32 i, count;
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count = mChildList.Count();
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// if the doc loader still has children...we need to enumerate the
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// children and make them null out their back ptr to the parent doc
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// loader
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for (i=0; i < count; i++)
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{
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nsIDocumentLoader* loader = ChildAt(i);
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if (loader) {
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// This is a safe cast, as we only put nsDocLoader objects into the
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// array
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static_cast<nsDocLoader*>(loader)->SetDocLoaderParent(nsnull);
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}
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}
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mChildList.Clear();
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}
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NS_IMETHODIMP
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nsDocLoader::OnStartRequest(nsIRequest *request, nsISupports *aCtxt)
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{
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// called each time a request is added to the group.
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#ifdef PR_LOGGING
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if (PR_LOG_TEST(gDocLoaderLog, PR_LOG_DEBUG)) {
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nsCAutoString name;
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request->GetName(name);
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PRUint32 count = 0;
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if (mLoadGroup)
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mLoadGroup->GetActiveCount(&count);
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PR_LOG(gDocLoaderLog, PR_LOG_DEBUG,
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("DocLoader:%p: OnStartRequest[%p](%s) mIsLoadingDocument=%s, %u active URLs",
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this, request, name.get(),
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(mIsLoadingDocument ? "true" : "false"),
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count));
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}
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#endif /* PR_LOGGING */
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PRBool bJustStartedLoading = PR_FALSE;
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nsLoadFlags loadFlags = 0;
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request->GetLoadFlags(&loadFlags);
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if (!mIsLoadingDocument && (loadFlags & nsIChannel::LOAD_DOCUMENT_URI)) {
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bJustStartedLoading = PR_TRUE;
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mIsLoadingDocument = PR_TRUE;
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ClearInternalProgress(); // only clear our progress if we are starting a new load....
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}
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//
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// Create a new nsRequestInfo for the request that is starting to
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// load...
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//
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AddRequestInfo(request);
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//
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// Only fire a doStartDocumentLoad(...) if the document loader
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// has initiated a load... Otherwise, this notification has
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// resulted from a request being added to the load group.
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//
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if (mIsLoadingDocument) {
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if (loadFlags & nsIChannel::LOAD_DOCUMENT_URI) {
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//
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// Make sure that the document channel is null at this point...
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// (unless its been redirected)
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//
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NS_ASSERTION((loadFlags & nsIChannel::LOAD_REPLACE) ||
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!(mDocumentRequest.get()),
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"Overwriting an existing document channel!");
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// This request is associated with the entire document...
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mDocumentRequest = request;
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mLoadGroup->SetDefaultLoadRequest(request);
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// Only fire the start document load notification for the first
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// document URI... Do not fire it again for redirections
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|
//
|
|
if (bJustStartedLoading) {
|
|
// Update the progress status state
|
|
mProgressStateFlags = nsIWebProgressListener::STATE_START;
|
|
|
|
// Fire the start document load notification
|
|
doStartDocumentLoad();
|
|
return NS_OK;
|
|
}
|
|
}
|
|
}
|
|
|
|
NS_ASSERTION(!mIsLoadingDocument || mDocumentRequest,
|
|
"mDocumentRequest MUST be set for the duration of a page load!");
|
|
|
|
doStartURLLoad(request);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocLoader::OnStopRequest(nsIRequest *aRequest,
|
|
nsISupports *aCtxt,
|
|
nsresult aStatus)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
|
|
#ifdef PR_LOGGING
|
|
if (PR_LOG_TEST(gDocLoaderLog, PR_LOG_DEBUG)) {
|
|
nsCAutoString name;
|
|
aRequest->GetName(name);
|
|
|
|
PRUint32 count = 0;
|
|
if (mLoadGroup)
|
|
mLoadGroup->GetActiveCount(&count);
|
|
|
|
PR_LOG(gDocLoaderLog, PR_LOG_DEBUG,
|
|
("DocLoader:%p: OnStopRequest[%p](%s) status=%x mIsLoadingDocument=%s, %u active URLs",
|
|
this, aRequest, name.get(),
|
|
aStatus, (mIsLoadingDocument ? "true" : "false"),
|
|
count));
|
|
}
|
|
#endif
|
|
|
|
PRBool bFireTransferring = PR_FALSE;
|
|
|
|
//
|
|
// Set the Maximum progress to the same value as the current progress.
|
|
// Since the URI has finished loading, all the data is there. Also,
|
|
// this will allow a more accurate estimation of the max progress (in case
|
|
// the old value was unknown ie. -1)
|
|
//
|
|
nsRequestInfo *info = GetRequestInfo(aRequest);
|
|
if (info) {
|
|
info->mIsDone = PR_TRUE;
|
|
|
|
PRInt64 oldMax = info->mMaxProgress;
|
|
|
|
info->mMaxProgress = info->mCurrentProgress;
|
|
|
|
//
|
|
// If a request whose content-length was previously unknown has just
|
|
// finished loading, then use this new data to try to calculate a
|
|
// mMaxSelfProgress...
|
|
//
|
|
if ((oldMax < PRInt64(0)) && (mMaxSelfProgress < PRInt64(0))) {
|
|
mMaxSelfProgress = CalculateMaxProgress();
|
|
}
|
|
|
|
// As we know the total progress of this request now, save it to be part
|
|
// of CalculateMaxProgress() result. We need to remove the info from the
|
|
// hash, see bug 480713.
|
|
mCompletedTotalProgress += info->mMaxProgress;
|
|
|
|
//
|
|
// Determine whether a STATE_TRANSFERRING notification should be
|
|
// 'synthesized'.
|
|
//
|
|
// If nsRequestInfo::mMaxProgress (as stored in oldMax) and
|
|
// nsRequestInfo::mCurrentProgress are both 0, then the
|
|
// STATE_TRANSFERRING notification has not been fired yet...
|
|
//
|
|
if ((oldMax == LL_ZERO) && (info->mCurrentProgress == LL_ZERO)) {
|
|
nsCOMPtr<nsIChannel> channel(do_QueryInterface(aRequest));
|
|
|
|
// Only fire a TRANSFERRING notification if the request is also a
|
|
// channel -- data transfer requires a nsIChannel!
|
|
//
|
|
if (channel) {
|
|
if (NS_SUCCEEDED(aStatus)) {
|
|
bFireTransferring = PR_TRUE;
|
|
}
|
|
//
|
|
// If the request failed (for any reason other than being
|
|
// redirected or retargeted), the TRANSFERRING notification can
|
|
// still be fired if a HTTP connection was established to a server.
|
|
//
|
|
else if (aStatus != NS_BINDING_REDIRECTED &&
|
|
aStatus != NS_BINDING_RETARGETED) {
|
|
//
|
|
// Only if the load has been targeted (see bug 268483)...
|
|
//
|
|
PRUint32 lf;
|
|
channel->GetLoadFlags(&lf);
|
|
if (lf & nsIChannel::LOAD_TARGETED) {
|
|
nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(aRequest));
|
|
if (httpChannel) {
|
|
PRUint32 responseCode;
|
|
rv = httpChannel->GetResponseStatus(&responseCode);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
//
|
|
// A valid server status indicates that a connection was
|
|
// established to the server... So, fire the notification
|
|
// even though a failure occurred later...
|
|
//
|
|
bFireTransferring = PR_TRUE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (bFireTransferring) {
|
|
// Send a STATE_TRANSFERRING notification for the request.
|
|
PRInt32 flags;
|
|
|
|
flags = nsIWebProgressListener::STATE_TRANSFERRING |
|
|
nsIWebProgressListener::STATE_IS_REQUEST;
|
|
//
|
|
// Move the WebProgress into the STATE_TRANSFERRING state if necessary...
|
|
//
|
|
if (mProgressStateFlags & nsIWebProgressListener::STATE_START) {
|
|
mProgressStateFlags = nsIWebProgressListener::STATE_TRANSFERRING;
|
|
|
|
// Send STATE_TRANSFERRING for the document too...
|
|
flags |= nsIWebProgressListener::STATE_IS_DOCUMENT;
|
|
}
|
|
|
|
FireOnStateChange(this, aRequest, flags, NS_OK);
|
|
}
|
|
|
|
//
|
|
// Fire the OnStateChange(...) notification for stop request
|
|
//
|
|
doStopURLLoad(aRequest, aStatus);
|
|
|
|
// Clear this request out of the hash to avoid bypass of FireOnStateChange
|
|
// when address of the request is reused.
|
|
RemoveRequestInfo(aRequest);
|
|
|
|
//
|
|
// Only fire the DocLoaderIsEmpty(...) if the document loader has initiated a
|
|
// load. This will handle removing the request from our hashtable as needed.
|
|
//
|
|
if (mIsLoadingDocument) {
|
|
DocLoaderIsEmpty(PR_TRUE);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
nsresult nsDocLoader::RemoveChildLoader(nsDocLoader* aChild)
|
|
{
|
|
nsresult rv = mChildList.RemoveElement(aChild) ? NS_OK : NS_ERROR_FAILURE;
|
|
if (NS_SUCCEEDED(rv)) {
|
|
aChild->SetDocLoaderParent(nsnull);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
nsresult nsDocLoader::AddChildLoader(nsDocLoader* aChild)
|
|
{
|
|
nsresult rv = mChildList.AppendElement(aChild) ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
|
|
if (NS_SUCCEEDED(rv)) {
|
|
aChild->SetDocLoaderParent(this);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP nsDocLoader::GetDocumentChannel(nsIChannel ** aChannel)
|
|
{
|
|
if (!mDocumentRequest) {
|
|
*aChannel = nsnull;
|
|
return NS_OK;
|
|
}
|
|
|
|
return CallQueryInterface(mDocumentRequest, aChannel);
|
|
}
|
|
|
|
|
|
void nsDocLoader::DocLoaderIsEmpty(PRBool aFlushLayout)
|
|
{
|
|
if (mIsLoadingDocument) {
|
|
/* In the unimagineably rude circumstance that onload event handlers
|
|
triggered by this function actually kill the window ... ok, it's
|
|
not unimagineable; it's happened ... this deathgrip keeps this object
|
|
alive long enough to survive this function call. */
|
|
nsCOMPtr<nsIDocumentLoader> kungFuDeathGrip(this);
|
|
|
|
// Don't flush layout if we're still busy.
|
|
if (IsBusy()) {
|
|
return;
|
|
}
|
|
|
|
NS_ASSERTION(!mIsFlushingLayout, "Someone screwed up");
|
|
|
|
// The load group for this DocumentLoader is idle. Flush if we need to.
|
|
if (aFlushLayout && !mDontFlushLayout) {
|
|
nsCOMPtr<nsIDOMDocument> domDoc = do_GetInterface(GetAsSupports(this));
|
|
nsCOMPtr<nsIDocument> doc = do_QueryInterface(domDoc);
|
|
if (doc) {
|
|
// We start loads from style resolution, so we need to flush out style
|
|
// no matter what. If we have user fonts, we also need to flush layout,
|
|
// since the reflow is what starts font loads.
|
|
mozFlushType flushType = Flush_Style;
|
|
nsIPresShell* shell = doc->GetShell();
|
|
if (shell) {
|
|
// Be safe in case this presshell is in teardown now
|
|
nsPresContext* presContext = shell->GetPresContext();
|
|
if (presContext && presContext->GetUserFontSet()) {
|
|
flushType = Flush_Layout;
|
|
}
|
|
}
|
|
mDontFlushLayout = mIsFlushingLayout = PR_TRUE;
|
|
doc->FlushPendingNotifications(flushType);
|
|
mDontFlushLayout = mIsFlushingLayout = PR_FALSE;
|
|
}
|
|
}
|
|
|
|
// And now check whether we're really busy; that might have changed with
|
|
// the layout flush.
|
|
if (!IsBusy()) {
|
|
// Clear out our request info hash, now that our load really is done and
|
|
// we don't need it anymore to CalculateMaxProgress().
|
|
ClearInternalProgress();
|
|
|
|
PR_LOG(gDocLoaderLog, PR_LOG_DEBUG,
|
|
("DocLoader:%p: Is now idle...\n", this));
|
|
|
|
nsCOMPtr<nsIRequest> docRequest = mDocumentRequest;
|
|
|
|
NS_ASSERTION(mDocumentRequest, "No Document Request!");
|
|
mDocumentRequest = 0;
|
|
mIsLoadingDocument = PR_FALSE;
|
|
|
|
// Update the progress status state - the document is done
|
|
mProgressStateFlags = nsIWebProgressListener::STATE_STOP;
|
|
|
|
|
|
nsresult loadGroupStatus = NS_OK;
|
|
mLoadGroup->GetStatus(&loadGroupStatus);
|
|
|
|
//
|
|
// New code to break the circular reference between
|
|
// the load group and the docloader...
|
|
//
|
|
mLoadGroup->SetDefaultLoadRequest(nsnull);
|
|
|
|
// Take a ref to our parent now so that we can call DocLoaderIsEmpty() on
|
|
// it even if our onload handler removes us from the docloader tree.
|
|
nsRefPtr<nsDocLoader> parent = mParent;
|
|
|
|
// Note that if calling ChildEnteringOnload() on the parent returns false
|
|
// then calling our onload handler is not safe. That can only happen on
|
|
// OOM, so that's ok.
|
|
if (!parent || parent->ChildEnteringOnload(this)) {
|
|
// Do nothing with our state after firing the
|
|
// OnEndDocumentLoad(...). The document loader may be loading a *new*
|
|
// document - if LoadDocument() was called from a handler!
|
|
//
|
|
doStopDocumentLoad(docRequest, loadGroupStatus);
|
|
|
|
if (parent) {
|
|
parent->ChildDoneWithOnload(this);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void nsDocLoader::doStartDocumentLoad(void)
|
|
{
|
|
|
|
#if defined(DEBUG)
|
|
nsCAutoString buffer;
|
|
|
|
GetURIStringFromRequest(mDocumentRequest, buffer);
|
|
PR_LOG(gDocLoaderLog, PR_LOG_DEBUG,
|
|
("DocLoader:%p: ++ Firing OnStateChange for start document load (...)."
|
|
"\tURI: %s \n",
|
|
this, buffer.get()));
|
|
#endif /* DEBUG */
|
|
|
|
// Fire an OnStatus(...) notification STATE_START. This indicates
|
|
// that the document represented by mDocumentRequest has started to
|
|
// load...
|
|
FireOnStateChange(this,
|
|
mDocumentRequest,
|
|
nsIWebProgressListener::STATE_START |
|
|
nsIWebProgressListener::STATE_IS_DOCUMENT |
|
|
nsIWebProgressListener::STATE_IS_REQUEST |
|
|
nsIWebProgressListener::STATE_IS_WINDOW |
|
|
nsIWebProgressListener::STATE_IS_NETWORK,
|
|
NS_OK);
|
|
}
|
|
|
|
void nsDocLoader::doStartURLLoad(nsIRequest *request)
|
|
{
|
|
#if defined(DEBUG)
|
|
nsCAutoString buffer;
|
|
|
|
GetURIStringFromRequest(request, buffer);
|
|
PR_LOG(gDocLoaderLog, PR_LOG_DEBUG,
|
|
("DocLoader:%p: ++ Firing OnStateChange start url load (...)."
|
|
"\tURI: %s\n",
|
|
this, buffer.get()));
|
|
#endif /* DEBUG */
|
|
|
|
FireOnStateChange(this,
|
|
request,
|
|
nsIWebProgressListener::STATE_START |
|
|
nsIWebProgressListener::STATE_IS_REQUEST,
|
|
NS_OK);
|
|
}
|
|
|
|
// PLDHashTable enumeration callback that finds a RequestInfo that's not done
|
|
// yet.
|
|
static PLDHashOperator
|
|
FindUnfinishedRequestCallback(PLDHashTable *table, PLDHashEntryHdr *hdr,
|
|
PRUint32 number, void *arg)
|
|
{
|
|
nsRequestInfo* info = static_cast<nsRequestInfo *>(hdr);
|
|
nsRequestInfo** retval = static_cast<nsRequestInfo**>(arg);
|
|
|
|
if (!info->mIsDone && !info->mLastStatus.IsEmpty()) {
|
|
*retval = info;
|
|
return PL_DHASH_STOP;
|
|
}
|
|
|
|
return PL_DHASH_NEXT;
|
|
}
|
|
|
|
|
|
void nsDocLoader::doStopURLLoad(nsIRequest *request, nsresult aStatus)
|
|
{
|
|
#if defined(DEBUG)
|
|
nsCAutoString buffer;
|
|
|
|
GetURIStringFromRequest(request, buffer);
|
|
PR_LOG(gDocLoaderLog, PR_LOG_DEBUG,
|
|
("DocLoader:%p: ++ Firing OnStateChange for end url load (...)."
|
|
"\tURI: %s status=%x\n",
|
|
this, buffer.get(), aStatus));
|
|
#endif /* DEBUG */
|
|
|
|
FireOnStateChange(this,
|
|
request,
|
|
nsIWebProgressListener::STATE_STOP |
|
|
nsIWebProgressListener::STATE_IS_REQUEST,
|
|
aStatus);
|
|
|
|
// Fire a status change message for a random unfinished request to make sure
|
|
// that the displayed status is not outdated.
|
|
nsRequestInfo* unfinishedRequest = nsnull;
|
|
PL_DHashTableEnumerate(&mRequestInfoHash, FindUnfinishedRequestCallback,
|
|
&unfinishedRequest);
|
|
if (unfinishedRequest) {
|
|
FireOnStatusChange(this, unfinishedRequest->Request(),
|
|
unfinishedRequest->mLastStatusCode,
|
|
unfinishedRequest->mLastStatus.get());
|
|
}
|
|
}
|
|
|
|
void nsDocLoader::doStopDocumentLoad(nsIRequest *request,
|
|
nsresult aStatus)
|
|
{
|
|
#if defined(DEBUG)
|
|
nsCAutoString buffer;
|
|
|
|
GetURIStringFromRequest(request, buffer);
|
|
PR_LOG(gDocLoaderLog, PR_LOG_DEBUG,
|
|
("DocLoader:%p: ++ Firing OnStateChange for end document load (...)."
|
|
"\tURI: %s Status=%x\n",
|
|
this, buffer.get(), aStatus));
|
|
#endif /* DEBUG */
|
|
|
|
//
|
|
// Fire an OnStateChange(...) notification indicating the the
|
|
// current document has finished loading...
|
|
//
|
|
FireOnStateChange(this,
|
|
request,
|
|
nsIWebProgressListener::STATE_STOP |
|
|
nsIWebProgressListener::STATE_IS_DOCUMENT,
|
|
aStatus);
|
|
|
|
//
|
|
// Fire a final OnStateChange(...) notification indicating the the
|
|
// current document has finished loading...
|
|
//
|
|
FireOnStateChange(this,
|
|
request,
|
|
nsIWebProgressListener::STATE_STOP |
|
|
nsIWebProgressListener::STATE_IS_WINDOW |
|
|
nsIWebProgressListener::STATE_IS_NETWORK,
|
|
aStatus);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////
|
|
// The following section contains support for nsIWebProgress and related stuff
|
|
////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
NS_IMETHODIMP
|
|
nsDocLoader::AddProgressListener(nsIWebProgressListener *aListener,
|
|
PRUint32 aNotifyMask)
|
|
{
|
|
nsresult rv;
|
|
|
|
nsListenerInfo* info = GetListenerInfo(aListener);
|
|
if (info) {
|
|
// The listener is already registered!
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsWeakPtr listener = do_GetWeakReference(aListener);
|
|
if (!listener) {
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
|
|
info = new nsListenerInfo(listener, aNotifyMask);
|
|
if (!info) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
rv = mListenerInfoList.AppendElement(info) ? NS_OK : NS_ERROR_FAILURE;
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocLoader::RemoveProgressListener(nsIWebProgressListener *aListener)
|
|
{
|
|
nsresult rv;
|
|
|
|
nsListenerInfo* info = GetListenerInfo(aListener);
|
|
if (info) {
|
|
rv = mListenerInfoList.RemoveElement(info) ? NS_OK : NS_ERROR_FAILURE;
|
|
delete info;
|
|
} else {
|
|
// The listener is not registered!
|
|
rv = NS_ERROR_FAILURE;
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocLoader::GetDOMWindow(nsIDOMWindow **aResult)
|
|
{
|
|
return CallGetInterface(this, aResult);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocLoader::GetIsLoadingDocument(PRBool *aIsLoadingDocument)
|
|
{
|
|
*aIsLoadingDocument = mIsLoadingDocument;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
PRInt64 nsDocLoader::GetMaxTotalProgress()
|
|
{
|
|
PRInt64 newMaxTotal = 0;
|
|
|
|
PRInt32 count = mChildList.Count();
|
|
nsCOMPtr<nsIWebProgress> webProgress;
|
|
for (PRInt32 i=0; i < count; i++)
|
|
{
|
|
PRInt64 individualProgress = 0;
|
|
nsIDocumentLoader* docloader = ChildAt(i);
|
|
if (docloader)
|
|
{
|
|
// Cast is safe since all children are nsDocLoader too
|
|
individualProgress = ((nsDocLoader *) docloader)->GetMaxTotalProgress();
|
|
}
|
|
if (individualProgress < PRInt64(0)) // if one of the elements doesn't know it's size
|
|
// then none of them do
|
|
{
|
|
newMaxTotal = PRInt64(-1);
|
|
break;
|
|
}
|
|
else
|
|
newMaxTotal += individualProgress;
|
|
}
|
|
|
|
PRInt64 progress = -1;
|
|
if (mMaxSelfProgress >= PRInt64(0) && newMaxTotal >= PRInt64(0))
|
|
progress = newMaxTotal + mMaxSelfProgress;
|
|
|
|
return progress;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////
|
|
// The following section contains support for nsIProgressEventSink which is used to
|
|
// pass progress and status between the actual request and the doc loader. The doc loader
|
|
// then turns around and makes the right web progress calls based on this information.
|
|
////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
NS_IMETHODIMP nsDocLoader::OnProgress(nsIRequest *aRequest, nsISupports* ctxt,
|
|
PRUint64 aProgress, PRUint64 aProgressMax)
|
|
{
|
|
nsRequestInfo *info;
|
|
PRInt64 progressDelta = 0;
|
|
|
|
//
|
|
// Update the RequestInfo entry with the new progress data
|
|
//
|
|
info = GetRequestInfo(aRequest);
|
|
if (info) {
|
|
// suppress sending STATE_TRANSFERRING if this is upload progress (see bug 240053)
|
|
if (!info->mUploading && (PRInt64(0) == info->mCurrentProgress) && (PRInt64(0) == info->mMaxProgress)) {
|
|
//
|
|
// If we receive an OnProgress event from a toplevel channel that the URI Loader
|
|
// has not yet targeted, then we must suppress the event. This is necessary to
|
|
// ensure that webprogresslisteners do not get confused when the channel is
|
|
// finally targeted. See bug 257308.
|
|
//
|
|
nsLoadFlags lf = 0;
|
|
aRequest->GetLoadFlags(&lf);
|
|
if ((lf & nsIChannel::LOAD_DOCUMENT_URI) && !(lf & nsIChannel::LOAD_TARGETED)) {
|
|
PR_LOG(gDocLoaderLog, PR_LOG_DEBUG,
|
|
("DocLoader:%p Ignoring OnProgress while load is not targeted\n", this));
|
|
return NS_OK;
|
|
}
|
|
|
|
//
|
|
// This is the first progress notification for the entry. If
|
|
// (aMaxProgress > 0) then the content-length of the data is known,
|
|
// so update mMaxSelfProgress... Otherwise, set it to -1 to indicate
|
|
// that the content-length is no longer known.
|
|
//
|
|
if (PRUint64(aProgressMax) != LL_MAXUINT) {
|
|
mMaxSelfProgress += PRInt64(aProgressMax);
|
|
info->mMaxProgress = PRInt64(aProgressMax);
|
|
} else {
|
|
mMaxSelfProgress = PRInt64(-1);
|
|
info->mMaxProgress = PRInt64(-1);
|
|
}
|
|
|
|
// Send a STATE_TRANSFERRING notification for the request.
|
|
PRInt32 flags;
|
|
|
|
flags = nsIWebProgressListener::STATE_TRANSFERRING |
|
|
nsIWebProgressListener::STATE_IS_REQUEST;
|
|
//
|
|
// Move the WebProgress into the STATE_TRANSFERRING state if necessary...
|
|
//
|
|
if (mProgressStateFlags & nsIWebProgressListener::STATE_START) {
|
|
mProgressStateFlags = nsIWebProgressListener::STATE_TRANSFERRING;
|
|
|
|
// Send STATE_TRANSFERRING for the document too...
|
|
flags |= nsIWebProgressListener::STATE_IS_DOCUMENT;
|
|
}
|
|
|
|
FireOnStateChange(this, aRequest, flags, NS_OK);
|
|
}
|
|
|
|
// Update the current progress count...
|
|
progressDelta = PRInt64(aProgress) - info->mCurrentProgress;
|
|
mCurrentSelfProgress += progressDelta;
|
|
|
|
info->mCurrentProgress = PRInt64(aProgress);
|
|
}
|
|
//
|
|
// The request is not part of the load group, so ignore its progress
|
|
// information...
|
|
//
|
|
else {
|
|
#if defined(DEBUG)
|
|
nsCAutoString buffer;
|
|
|
|
GetURIStringFromRequest(aRequest, buffer);
|
|
PR_LOG(gDocLoaderLog, PR_LOG_DEBUG,
|
|
("DocLoader:%p OOPS - No Request Info for: %s\n",
|
|
this, buffer.get()));
|
|
#endif /* DEBUG */
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
//
|
|
// Fire progress notifications out to any registered nsIWebProgressListeners
|
|
//
|
|
FireOnProgressChange(this, aRequest, aProgress, aProgressMax, progressDelta,
|
|
mCurrentTotalProgress, mMaxTotalProgress);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP nsDocLoader::OnStatus(nsIRequest* aRequest, nsISupports* ctxt,
|
|
nsresult aStatus, const PRUnichar* aStatusArg)
|
|
{
|
|
//
|
|
// Fire progress notifications out to any registered nsIWebProgressListeners
|
|
//
|
|
if (aStatus) {
|
|
// Remember the current status for this request
|
|
nsRequestInfo *info;
|
|
info = GetRequestInfo(aRequest);
|
|
if (info) {
|
|
PRBool uploading = (aStatus == nsITransport::STATUS_WRITING ||
|
|
aStatus == nsISocketTransport::STATUS_SENDING_TO);
|
|
// If switching from uploading to downloading (or vice versa), then we
|
|
// need to reset our progress counts. This is designed with HTTP form
|
|
// submission in mind, where an upload is performed followed by download
|
|
// of possibly several documents.
|
|
if (info->mUploading != uploading) {
|
|
mCurrentSelfProgress = mMaxSelfProgress = LL_ZERO;
|
|
mCurrentTotalProgress = mMaxTotalProgress = LL_ZERO;
|
|
mCompletedTotalProgress = LL_ZERO;
|
|
info->mUploading = uploading;
|
|
info->mCurrentProgress = LL_ZERO;
|
|
info->mMaxProgress = LL_ZERO;
|
|
}
|
|
}
|
|
|
|
nsCOMPtr<nsIStringBundleService> sbs =
|
|
mozilla::services::GetStringBundleService();
|
|
if (!sbs)
|
|
return NS_ERROR_FAILURE;
|
|
nsXPIDLString msg;
|
|
nsresult rv = sbs->FormatStatusMessage(aStatus, aStatusArg,
|
|
getter_Copies(msg));
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
// Keep around the message. In case a request finishes, we need to make sure
|
|
// to send the status message of another request to our user to that we
|
|
// don't display, for example, "Transferring" messages for requests that are
|
|
// already done.
|
|
if (info) {
|
|
info->mLastStatus = msg;
|
|
info->mLastStatusCode = aStatus;
|
|
}
|
|
FireOnStatusChange(this, aRequest, aStatus, msg);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsDocLoader::ClearInternalProgress()
|
|
{
|
|
ClearRequestInfoHash();
|
|
|
|
mCurrentSelfProgress = mMaxSelfProgress = LL_ZERO;
|
|
mCurrentTotalProgress = mMaxTotalProgress = LL_ZERO;
|
|
mCompletedTotalProgress = LL_ZERO;
|
|
|
|
mProgressStateFlags = nsIWebProgressListener::STATE_STOP;
|
|
}
|
|
|
|
|
|
void nsDocLoader::FireOnProgressChange(nsDocLoader *aLoadInitiator,
|
|
nsIRequest *request,
|
|
PRInt64 aProgress,
|
|
PRInt64 aProgressMax,
|
|
PRInt64 aProgressDelta,
|
|
PRInt64 aTotalProgress,
|
|
PRInt64 aMaxTotalProgress)
|
|
{
|
|
if (mIsLoadingDocument) {
|
|
mCurrentTotalProgress += aProgressDelta;
|
|
mMaxTotalProgress = GetMaxTotalProgress();
|
|
|
|
aTotalProgress = mCurrentTotalProgress;
|
|
aMaxTotalProgress = mMaxTotalProgress;
|
|
}
|
|
|
|
#if defined(DEBUG)
|
|
nsCAutoString buffer;
|
|
|
|
GetURIStringFromRequest(request, buffer);
|
|
PR_LOG(gDocLoaderLog, PR_LOG_DEBUG,
|
|
("DocLoader:%p: Progress (%s): curSelf: %d maxSelf: %d curTotal: %d maxTotal %d\n",
|
|
this, buffer.get(), aProgress, aProgressMax, aTotalProgress, aMaxTotalProgress));
|
|
#endif /* DEBUG */
|
|
|
|
/*
|
|
* First notify any listeners of the new progress info...
|
|
*
|
|
* Operate the elements from back to front so that if items get
|
|
* get removed from the list it won't affect our iteration
|
|
*/
|
|
nsCOMPtr<nsIWebProgressListener> listener;
|
|
PRInt32 count = mListenerInfoList.Count();
|
|
|
|
while (--count >= 0) {
|
|
nsListenerInfo *info;
|
|
|
|
info = static_cast<nsListenerInfo*>(mListenerInfoList.SafeElementAt(count));
|
|
if (!info || !(info->mNotifyMask & nsIWebProgress::NOTIFY_PROGRESS)) {
|
|
continue;
|
|
}
|
|
|
|
listener = do_QueryReferent(info->mWeakListener);
|
|
if (!listener) {
|
|
// the listener went away. gracefully pull it out of the list.
|
|
mListenerInfoList.RemoveElementAt(count);
|
|
delete info;
|
|
continue;
|
|
}
|
|
|
|
// XXX truncates 64-bit to 32-bit
|
|
listener->OnProgressChange(aLoadInitiator,request,
|
|
PRInt32(aProgress), PRInt32(aProgressMax),
|
|
PRInt32(aTotalProgress), PRInt32(aMaxTotalProgress));
|
|
}
|
|
|
|
mListenerInfoList.Compact();
|
|
|
|
// Pass the notification up to the parent...
|
|
if (mParent) {
|
|
mParent->FireOnProgressChange(aLoadInitiator, request,
|
|
aProgress, aProgressMax,
|
|
aProgressDelta,
|
|
aTotalProgress, aMaxTotalProgress);
|
|
}
|
|
}
|
|
|
|
|
|
void nsDocLoader::FireOnStateChange(nsIWebProgress *aProgress,
|
|
nsIRequest *aRequest,
|
|
PRInt32 aStateFlags,
|
|
nsresult aStatus)
|
|
{
|
|
//
|
|
// Remove the STATE_IS_NETWORK bit if necessary.
|
|
//
|
|
// The rule is to remove this bit, if the notification has been passed
|
|
// up from a child WebProgress, and the current WebProgress is already
|
|
// active...
|
|
//
|
|
if (mIsLoadingDocument &&
|
|
(aStateFlags & nsIWebProgressListener::STATE_IS_NETWORK) &&
|
|
(this != aProgress)) {
|
|
aStateFlags &= ~nsIWebProgressListener::STATE_IS_NETWORK;
|
|
}
|
|
|
|
// Add the STATE_RESTORING bit if necessary.
|
|
if (mIsRestoringDocument)
|
|
aStateFlags |= nsIWebProgressListener::STATE_RESTORING;
|
|
|
|
#if defined(DEBUG)
|
|
nsCAutoString buffer;
|
|
|
|
GetURIStringFromRequest(aRequest, buffer);
|
|
PR_LOG(gDocLoaderLog, PR_LOG_DEBUG,
|
|
("DocLoader:%p: Status (%s): code: %x\n",
|
|
this, buffer.get(), aStateFlags));
|
|
#endif /* DEBUG */
|
|
|
|
NS_ASSERTION(aRequest, "Firing OnStateChange(...) notification with a NULL request!");
|
|
|
|
/*
|
|
* First notify any listeners of the new state info...
|
|
*
|
|
* Operate the elements from back to front so that if items get
|
|
* get removed from the list it won't affect our iteration
|
|
*/
|
|
nsCOMPtr<nsIWebProgressListener> listener;
|
|
PRInt32 count = mListenerInfoList.Count();
|
|
PRInt32 notifyMask = (aStateFlags >> 16) & nsIWebProgress::NOTIFY_STATE_ALL;
|
|
|
|
while (--count >= 0) {
|
|
nsListenerInfo *info;
|
|
|
|
info = static_cast<nsListenerInfo*>(mListenerInfoList.SafeElementAt(count));
|
|
if (!info || !(info->mNotifyMask & notifyMask)) {
|
|
continue;
|
|
}
|
|
|
|
listener = do_QueryReferent(info->mWeakListener);
|
|
if (!listener) {
|
|
// the listener went away. gracefully pull it out of the list.
|
|
mListenerInfoList.RemoveElementAt(count);
|
|
delete info;
|
|
continue;
|
|
}
|
|
|
|
listener->OnStateChange(aProgress, aRequest, aStateFlags, aStatus);
|
|
}
|
|
|
|
mListenerInfoList.Compact();
|
|
|
|
// Pass the notification up to the parent...
|
|
if (mParent) {
|
|
mParent->FireOnStateChange(aProgress, aRequest, aStateFlags, aStatus);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
void
|
|
nsDocLoader::FireOnLocationChange(nsIWebProgress* aWebProgress,
|
|
nsIRequest* aRequest,
|
|
nsIURI *aUri)
|
|
{
|
|
/*
|
|
* First notify any listeners of the new state info...
|
|
*
|
|
* Operate the elements from back to front so that if items get
|
|
* get removed from the list it won't affect our iteration
|
|
*/
|
|
nsCOMPtr<nsIWebProgressListener> listener;
|
|
PRInt32 count = mListenerInfoList.Count();
|
|
|
|
while (--count >= 0) {
|
|
nsListenerInfo *info;
|
|
|
|
info = static_cast<nsListenerInfo*>(mListenerInfoList.SafeElementAt(count));
|
|
if (!info || !(info->mNotifyMask & nsIWebProgress::NOTIFY_LOCATION)) {
|
|
continue;
|
|
}
|
|
|
|
listener = do_QueryReferent(info->mWeakListener);
|
|
if (!listener) {
|
|
// the listener went away. gracefully pull it out of the list.
|
|
mListenerInfoList.RemoveElementAt(count);
|
|
delete info;
|
|
continue;
|
|
}
|
|
|
|
listener->OnLocationChange(aWebProgress, aRequest, aUri);
|
|
}
|
|
|
|
mListenerInfoList.Compact();
|
|
|
|
// Pass the notification up to the parent...
|
|
if (mParent) {
|
|
mParent->FireOnLocationChange(aWebProgress, aRequest, aUri);
|
|
}
|
|
}
|
|
|
|
void
|
|
nsDocLoader::FireOnStatusChange(nsIWebProgress* aWebProgress,
|
|
nsIRequest* aRequest,
|
|
nsresult aStatus,
|
|
const PRUnichar* aMessage)
|
|
{
|
|
/*
|
|
* First notify any listeners of the new state info...
|
|
*
|
|
* Operate the elements from back to front so that if items get
|
|
* get removed from the list it won't affect our iteration
|
|
*/
|
|
nsCOMPtr<nsIWebProgressListener> listener;
|
|
PRInt32 count = mListenerInfoList.Count();
|
|
|
|
while (--count >= 0) {
|
|
nsListenerInfo *info;
|
|
|
|
info = static_cast<nsListenerInfo*>(mListenerInfoList.SafeElementAt(count));
|
|
if (!info || !(info->mNotifyMask & nsIWebProgress::NOTIFY_STATUS)) {
|
|
continue;
|
|
}
|
|
|
|
listener = do_QueryReferent(info->mWeakListener);
|
|
if (!listener) {
|
|
// the listener went away. gracefully pull it out of the list.
|
|
mListenerInfoList.RemoveElementAt(count);
|
|
delete info;
|
|
continue;
|
|
}
|
|
|
|
listener->OnStatusChange(aWebProgress, aRequest, aStatus, aMessage);
|
|
}
|
|
mListenerInfoList.Compact();
|
|
|
|
// Pass the notification up to the parent...
|
|
if (mParent) {
|
|
mParent->FireOnStatusChange(aWebProgress, aRequest, aStatus, aMessage);
|
|
}
|
|
}
|
|
|
|
PRBool
|
|
nsDocLoader::RefreshAttempted(nsIWebProgress* aWebProgress,
|
|
nsIURI *aURI,
|
|
PRInt32 aDelay,
|
|
PRBool aSameURI)
|
|
{
|
|
/*
|
|
* Returns true if the refresh may proceed,
|
|
* false if the refresh should be blocked.
|
|
*
|
|
* First notify any listeners of the refresh attempt...
|
|
*
|
|
* Iterate the elements from back to front so that if items
|
|
* get removed from the list it won't affect our iteration
|
|
*/
|
|
PRBool allowRefresh = PR_TRUE;
|
|
PRInt32 count = mListenerInfoList.Count();
|
|
|
|
while (--count >= 0) {
|
|
nsListenerInfo *info;
|
|
|
|
info = static_cast<nsListenerInfo*>(mListenerInfoList.SafeElementAt(count));
|
|
if (!info || !(info->mNotifyMask & nsIWebProgress::NOTIFY_REFRESH)) {
|
|
continue;
|
|
}
|
|
|
|
nsCOMPtr<nsIWebProgressListener> listener =
|
|
do_QueryReferent(info->mWeakListener);
|
|
if (!listener) {
|
|
// the listener went away. gracefully pull it out of the list.
|
|
mListenerInfoList.RemoveElementAt(count);
|
|
delete info;
|
|
continue;
|
|
}
|
|
|
|
nsCOMPtr<nsIWebProgressListener2> listener2 =
|
|
do_QueryReferent(info->mWeakListener);
|
|
if (!listener2)
|
|
continue;
|
|
|
|
PRBool listenerAllowedRefresh;
|
|
nsresult listenerRV = listener2->OnRefreshAttempted(
|
|
aWebProgress, aURI, aDelay, aSameURI, &listenerAllowedRefresh);
|
|
if (NS_FAILED(listenerRV))
|
|
continue;
|
|
|
|
allowRefresh = allowRefresh && listenerAllowedRefresh;
|
|
}
|
|
|
|
mListenerInfoList.Compact();
|
|
|
|
// Pass the notification up to the parent...
|
|
if (mParent) {
|
|
allowRefresh = allowRefresh &&
|
|
mParent->RefreshAttempted(aWebProgress, aURI, aDelay, aSameURI);
|
|
}
|
|
|
|
return allowRefresh;
|
|
}
|
|
|
|
nsListenerInfo *
|
|
nsDocLoader::GetListenerInfo(nsIWebProgressListener *aListener)
|
|
{
|
|
PRInt32 i, count;
|
|
nsListenerInfo *info;
|
|
|
|
nsCOMPtr<nsISupports> listener1 = do_QueryInterface(aListener);
|
|
count = mListenerInfoList.Count();
|
|
for (i=0; i<count; i++) {
|
|
info = static_cast<nsListenerInfo*>(mListenerInfoList.SafeElementAt(i));
|
|
|
|
NS_ASSERTION(info, "There should NEVER be a null listener in the list");
|
|
if (info) {
|
|
nsCOMPtr<nsISupports> listener2 = do_QueryReferent(info->mWeakListener);
|
|
if (listener1 == listener2)
|
|
return info;
|
|
}
|
|
}
|
|
return nsnull;
|
|
}
|
|
|
|
nsresult nsDocLoader::AddRequestInfo(nsIRequest *aRequest)
|
|
{
|
|
if (!PL_DHashTableOperate(&mRequestInfoHash, aRequest, PL_DHASH_ADD)) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsDocLoader::RemoveRequestInfo(nsIRequest *aRequest)
|
|
{
|
|
PL_DHashTableOperate(&mRequestInfoHash, aRequest, PL_DHASH_REMOVE);
|
|
}
|
|
|
|
nsRequestInfo * nsDocLoader::GetRequestInfo(nsIRequest *aRequest)
|
|
{
|
|
nsRequestInfo *info =
|
|
static_cast<nsRequestInfo *>
|
|
(PL_DHashTableOperate(&mRequestInfoHash, aRequest,
|
|
PL_DHASH_LOOKUP));
|
|
|
|
if (PL_DHASH_ENTRY_IS_FREE(info)) {
|
|
// Nothing found in the hash, return null.
|
|
|
|
return nsnull;
|
|
}
|
|
|
|
// Return what we found in the hash...
|
|
|
|
return info;
|
|
}
|
|
|
|
// PLDHashTable enumeration callback that just removes every entry
|
|
// from the hash.
|
|
static PLDHashOperator
|
|
RemoveInfoCallback(PLDHashTable *table, PLDHashEntryHdr *hdr, PRUint32 number,
|
|
void *arg)
|
|
{
|
|
return PL_DHASH_REMOVE;
|
|
}
|
|
|
|
void nsDocLoader::ClearRequestInfoHash(void)
|
|
{
|
|
if (!mRequestInfoHash.ops || !mRequestInfoHash.entryCount) {
|
|
// No hash, or the hash is empty, nothing to do here then...
|
|
|
|
return;
|
|
}
|
|
|
|
PL_DHashTableEnumerate(&mRequestInfoHash, RemoveInfoCallback, nsnull);
|
|
}
|
|
|
|
// PLDHashTable enumeration callback that calculates the max progress.
|
|
static PLDHashOperator
|
|
CalcMaxProgressCallback(PLDHashTable *table, PLDHashEntryHdr *hdr,
|
|
PRUint32 number, void *arg)
|
|
{
|
|
const nsRequestInfo *info = static_cast<const nsRequestInfo *>(hdr);
|
|
PRInt64 *max = static_cast<PRInt64 *>(arg);
|
|
|
|
if (info->mMaxProgress < info->mCurrentProgress) {
|
|
*max = PRInt64(-1);
|
|
|
|
return PL_DHASH_STOP;
|
|
}
|
|
|
|
*max += info->mMaxProgress;
|
|
|
|
return PL_DHASH_NEXT;
|
|
}
|
|
|
|
PRInt64 nsDocLoader::CalculateMaxProgress()
|
|
{
|
|
PRInt64 max = mCompletedTotalProgress;
|
|
PL_DHashTableEnumerate(&mRequestInfoHash, CalcMaxProgressCallback, &max);
|
|
return max;
|
|
}
|
|
|
|
NS_IMETHODIMP nsDocLoader::AsyncOnChannelRedirect(nsIChannel *aOldChannel,
|
|
nsIChannel *aNewChannel,
|
|
PRUint32 aFlags,
|
|
nsIAsyncVerifyRedirectCallback *cb)
|
|
{
|
|
if (aOldChannel)
|
|
{
|
|
nsLoadFlags loadFlags = 0;
|
|
PRInt32 stateFlags = nsIWebProgressListener::STATE_REDIRECTING |
|
|
nsIWebProgressListener::STATE_IS_REQUEST;
|
|
|
|
aOldChannel->GetLoadFlags(&loadFlags);
|
|
// If the document channel is being redirected, then indicate that the
|
|
// document is being redirected in the notification...
|
|
if (loadFlags & nsIChannel::LOAD_DOCUMENT_URI)
|
|
{
|
|
stateFlags |= nsIWebProgressListener::STATE_IS_DOCUMENT;
|
|
|
|
#if defined(DEBUG)
|
|
nsCOMPtr<nsIRequest> request(do_QueryInterface(aOldChannel));
|
|
NS_ASSERTION(request == mDocumentRequest, "Wrong Document Channel");
|
|
#endif /* DEBUG */
|
|
}
|
|
|
|
OnRedirectStateChange(aOldChannel, aNewChannel, aFlags, stateFlags);
|
|
FireOnStateChange(this, aOldChannel, stateFlags, NS_OK);
|
|
}
|
|
|
|
cb->OnRedirectVerifyCallback(NS_OK);
|
|
return NS_OK;
|
|
}
|
|
|
|
/*
|
|
* Implementation of nsISecurityEventSink method...
|
|
*/
|
|
|
|
NS_IMETHODIMP nsDocLoader::OnSecurityChange(nsISupports * aContext,
|
|
PRUint32 aState)
|
|
{
|
|
//
|
|
// Fire progress notifications out to any registered nsIWebProgressListeners.
|
|
//
|
|
|
|
nsCOMPtr<nsIRequest> request = do_QueryInterface(aContext);
|
|
nsIWebProgress* webProgress = static_cast<nsIWebProgress*>(this);
|
|
|
|
/*
|
|
* First notify any listeners of the new state info...
|
|
*
|
|
* Operate the elements from back to front so that if items get
|
|
* get removed from the list it won't affect our iteration
|
|
*/
|
|
nsCOMPtr<nsIWebProgressListener> listener;
|
|
PRInt32 count = mListenerInfoList.Count();
|
|
|
|
while (--count >= 0) {
|
|
nsListenerInfo *info;
|
|
|
|
info = static_cast<nsListenerInfo*>(mListenerInfoList.SafeElementAt(count));
|
|
if (!info || !(info->mNotifyMask & nsIWebProgress::NOTIFY_SECURITY)) {
|
|
continue;
|
|
}
|
|
|
|
listener = do_QueryReferent(info->mWeakListener);
|
|
if (!listener) {
|
|
// the listener went away. gracefully pull it out of the list.
|
|
mListenerInfoList.RemoveElementAt(count);
|
|
delete info;
|
|
continue;
|
|
}
|
|
|
|
listener->OnSecurityChange(webProgress, request, aState);
|
|
}
|
|
|
|
mListenerInfoList.Compact();
|
|
|
|
// Pass the notification up to the parent...
|
|
if (mParent) {
|
|
mParent->OnSecurityChange(aContext, aState);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
/*
|
|
* Implementation of nsISupportsPriority methods...
|
|
*
|
|
* The priority of the DocLoader _is_ the priority of its LoadGroup.
|
|
*
|
|
* XXX(darin): Once we start storing loadgroups in loadgroups, this code will
|
|
* go away.
|
|
*/
|
|
|
|
NS_IMETHODIMP nsDocLoader::GetPriority(PRInt32 *aPriority)
|
|
{
|
|
nsCOMPtr<nsISupportsPriority> p = do_QueryInterface(mLoadGroup);
|
|
if (p)
|
|
return p->GetPriority(aPriority);
|
|
|
|
*aPriority = 0;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP nsDocLoader::SetPriority(PRInt32 aPriority)
|
|
{
|
|
PR_LOG(gDocLoaderLog, PR_LOG_DEBUG,
|
|
("DocLoader:%p: SetPriority(%d) called\n", this, aPriority));
|
|
|
|
nsCOMPtr<nsISupportsPriority> p = do_QueryInterface(mLoadGroup);
|
|
if (p)
|
|
p->SetPriority(aPriority);
|
|
|
|
PRInt32 count = mChildList.Count();
|
|
|
|
nsDocLoader *loader;
|
|
for (PRInt32 i=0; i < count; i++) {
|
|
loader = static_cast<nsDocLoader*>(ChildAt(i));
|
|
if (loader) {
|
|
loader->SetPriority(aPriority);
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP nsDocLoader::AdjustPriority(PRInt32 aDelta)
|
|
{
|
|
PR_LOG(gDocLoaderLog, PR_LOG_DEBUG,
|
|
("DocLoader:%p: AdjustPriority(%d) called\n", this, aDelta));
|
|
|
|
nsCOMPtr<nsISupportsPriority> p = do_QueryInterface(mLoadGroup);
|
|
if (p)
|
|
p->AdjustPriority(aDelta);
|
|
|
|
PRInt32 count = mChildList.Count();
|
|
|
|
nsDocLoader *loader;
|
|
for (PRInt32 i=0; i < count; i++) {
|
|
loader = static_cast<nsDocLoader*>(ChildAt(i));
|
|
if (loader) {
|
|
loader->AdjustPriority(aDelta);
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
|
|
#if 0
|
|
void nsDocLoader::DumpChannelInfo()
|
|
{
|
|
nsChannelInfo *info;
|
|
PRInt32 i, count;
|
|
PRInt32 current=0, max=0;
|
|
|
|
|
|
printf("==== DocLoader=%x\n", this);
|
|
|
|
count = mChannelInfoList.Count();
|
|
for(i=0; i<count; i++) {
|
|
info = (nsChannelInfo *)mChannelInfoList.ElementAt(i);
|
|
|
|
#if defined(DEBUG)
|
|
nsCAutoString buffer;
|
|
nsresult rv = NS_OK;
|
|
if (info->mURI) {
|
|
rv = info->mURI->GetSpec(buffer);
|
|
}
|
|
|
|
printf(" [%d] current=%d max=%d [%s]\n", i,
|
|
info->mCurrentProgress,
|
|
info->mMaxProgress, buffer.get());
|
|
#endif /* DEBUG */
|
|
|
|
current += info->mCurrentProgress;
|
|
if (max >= 0) {
|
|
if (info->mMaxProgress < info->mCurrentProgress) {
|
|
max = -1;
|
|
} else {
|
|
max += info->mMaxProgress;
|
|
}
|
|
}
|
|
}
|
|
|
|
printf("\nCurrent=%d Total=%d\n====\n", current, max);
|
|
}
|
|
#endif /* 0 */
|