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gecko-dev/docshell/base/nsDocShell.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the Mozilla browser.
*
* The Initial Developer of the Original Code is Netscape
* Communications, Inc. Portions created by Netscape are
* Copyright (C) 1999, Mozilla. All Rights Reserved.
*
* Contributor(s):
* Travis Bogard <travis@netscape.com>
* Pierre Phaneuf <pp@ludusdesign.com>
*/
#include "nsIComponentManager.h"
#include "nsIContent.h"
#include "nsIDocument.h"
#include "nsIDOMDocument.h"
#include "nsIDOMElement.h"
#include "nsIDocumentViewer.h"
#include "nsIDocumentLoaderFactory.h"
#include "nsIPluginHost.h"
#include "nsCURILoader.h"
#include "nsLayoutCID.h"
#include "nsNetUtil.h"
#include "nsRect.h"
#include "prprf.h"
#include "nsIMarkupDocumentViewer.h"
#include "nsXPIDLString.h"
#include "nsIChromeEventHandler.h"
#include "nsIDOMWindowInternal.h"
#include "nsIWebBrowserChrome.h"
#include "nsPoint.h"
#include "nsGfxCIID.h"
#include "nsIPrompt.h"
#include "nsTextFormatter.h"
#include "nsIHTTPEventSink.h"
#include "nsISecurityEventSink.h"
#include "nsScriptSecurityManager.h"
// Local Includes
#include "nsDocShell.h"
#include "nsDocShellLoadInfo.h"
// Helper Classes
#include "nsDOMError.h"
#include "nsEscape.h"
#include "nsHTTPEnums.h"
// Interfaces Needed
#include "nsICharsetConverterManager.h"
#include "nsIHTTPChannel.h"
#include "nsIDataChannel.h"
#include "nsIProgressEventSink.h"
#include "nsIWebProgress.h"
#include "nsILayoutHistoryState.h"
#include "nsILocaleService.h"
#include "nsIPlatformCharset.h"
#include "nsITimer.h"
#include "nsIFileStream.h"
#include "nsIPrincipal.h"
#include "nsPIDOMWindow.h"
// For reporting errors with the console service.
// These can go away if error reporting is propagated up past nsDocShell.
#include "nsIConsoleService.h"
#include "nsIScriptError.h"
// used to dispatch urls to default protocol handlers
#include "nsCExternalHandlerService.h"
#include "nsIExternalProtocolService.h"
// XXX Very unfortunate dependencies. These are required to fix
// some serious focus bugs. Please read my comment in
// SetupNewViewer. -- hyatt
#include "nsIDOMXULDocument.h"
#include "nsIDOMXULCommandDispatcher.h"
static NS_DEFINE_IID(kDeviceContextCID, NS_DEVICE_CONTEXT_CID);
static NS_DEFINE_CID(kPlatformCharsetCID, NS_PLATFORMCHARSET_CID);
static NS_DEFINE_CID(kCharsetConverterManagerCID, NS_ICHARSETCONVERTERMANAGER_CID);
static NS_DEFINE_CID(kSimpleURICID, NS_SIMPLEURI_CID);
static NS_DEFINE_CID(kDocumentCharsetInfoCID, NS_DOCUMENTCHARSETINFO_CID);
static NS_DEFINE_CID(kPluginManagerCID, NS_PLUGINMANAGER_CID);
static NS_DEFINE_CID(kSecurityManagerCID, NS_SCRIPTSECURITYMANAGER_CID);
//
// Local function prototypes
//
/**
* Used in AddHeadersToChannel
*/
static NS_METHOD AHTC_WriteFunc(nsIInputStream* in,
void* closure,
const char* fromRawSegment,
PRUint32 toOffset,
PRUint32 count,
PRUint32 *writeCount);
//*****************************************************************************
//*** nsDocShell: Object Management
//*****************************************************************************
nsDocShell::nsDocShell() :
mContentListener(nsnull),
mInitInfo(nsnull),
mMarginWidth(0),
mMarginHeight(0),
mItemType(typeContent),
mCurrentScrollbarPref(-1,-1),
mDefaultScrollbarPref(-1,-1),
mInitialPageLoad(PR_TRUE),
mAllowPlugins(PR_TRUE),
mViewMode(viewNormal),
mLastViewMode(viewNormal),
mRestoreViewMode(PR_FALSE),
mEODForCurrentDocument (PR_FALSE),
mUseExternalProtocolHandler (PR_FALSE),
mParent(nsnull),
mTreeOwner(nsnull),
mURIResultedInDocument(PR_FALSE),
mChromeEventHandler(nsnull)
{
NS_INIT_REFCNT();
}
nsDocShell::~nsDocShell()
{
Destroy();
}
NS_IMETHODIMP nsDocShell::DestroyChildren()
{
PRInt32 i, n = mChildren.Count();
nsCOMPtr<nsIDocShellTreeItem> shell;
for (i = 0; i < n; i++)
{
shell = dont_AddRef((nsIDocShellTreeItem*)mChildren.ElementAt(i));
if(!NS_WARN_IF_FALSE(shell, "docshell has null child"))
shell->SetParent(nsnull);
nsCOMPtr<nsIBaseWindow> shellWin(do_QueryInterface(shell));
if(shellWin)
shellWin->Destroy();
}
mChildren.Clear();
return NS_OK;
}
//*****************************************************************************
// nsDocShell::nsISupports
//*****************************************************************************
NS_IMPL_THREADSAFE_ADDREF(nsDocShell)
NS_IMPL_THREADSAFE_RELEASE(nsDocShell)
NS_INTERFACE_MAP_BEGIN(nsDocShell)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDocShell)
NS_INTERFACE_MAP_ENTRY(nsIDocShell)
NS_INTERFACE_MAP_ENTRY(nsIDocShellTreeItem)
NS_INTERFACE_MAP_ENTRY(nsIDocShellTreeNode)
NS_INTERFACE_MAP_ENTRY(nsIDocShellHistory)
NS_INTERFACE_MAP_ENTRY(nsIWebNavigation)
NS_INTERFACE_MAP_ENTRY(nsIBaseWindow)
NS_INTERFACE_MAP_ENTRY(nsIScrollable)
NS_INTERFACE_MAP_ENTRY(nsITextScroll)
NS_INTERFACE_MAP_ENTRY(nsIInterfaceRequestor)
NS_INTERFACE_MAP_ENTRY(nsIScriptGlobalObjectOwner)
NS_INTERFACE_MAP_ENTRY(nsIRefreshURI)
NS_INTERFACE_MAP_ENTRY(nsIWebProgressListener)
NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
NS_INTERFACE_MAP_END_THREADSAFE
///*****************************************************************************
// nsDocShell::nsIInterfaceRequestor
//*****************************************************************************
NS_IMETHODIMP nsDocShell::GetInterface(const nsIID& aIID, void** aSink)
{
NS_ENSURE_ARG_POINTER(aSink);
if(aIID.Equals(NS_GET_IID(nsIURIContentListener)) &&
NS_SUCCEEDED(EnsureContentListener()))
{
*aSink = mContentListener;
}
else if(aIID.Equals(NS_GET_IID(nsIScriptGlobalObject)) &&
NS_SUCCEEDED(EnsureScriptEnvironment()))
{
*aSink = mScriptGlobal;
}
else if(aIID.Equals(NS_GET_IID(nsIDOMWindowInternal)) &&
NS_SUCCEEDED(EnsureScriptEnvironment()))
{
NS_ENSURE_SUCCESS(mScriptGlobal->QueryInterface(NS_GET_IID(nsIDOMWindowInternal),
aSink), NS_ERROR_FAILURE);
return NS_OK;
}
else if(aIID.Equals(NS_GET_IID(nsIDOMWindow)) &&
NS_SUCCEEDED(EnsureScriptEnvironment()))
{
NS_ENSURE_SUCCESS(mScriptGlobal->QueryInterface(NS_GET_IID(nsIDOMWindow),
aSink), NS_ERROR_FAILURE);
return NS_OK;
}
else if (aIID.Equals(NS_GET_IID(nsIDOMDocument)) &&
NS_SUCCEEDED(EnsureContentViewer()))
{
mContentViewer->GetDOMDocument((nsIDOMDocument**) aSink);
}
else if(aIID.Equals(NS_GET_IID(nsIPrompt)))
{
nsCOMPtr<nsIPrompt> prompter(do_GetInterface(mTreeOwner));
if (prompter)
{
*aSink = prompter;
NS_ADDREF((nsISupports*)*aSink);
return NS_OK;
}
else
return NS_NOINTERFACE;
}
else if (aIID.Equals(NS_GET_IID(nsIProgressEventSink)) || aIID.Equals(NS_GET_IID(nsIHTTPEventSink)) ||
aIID.Equals(NS_GET_IID(nsIWebProgress)) || aIID.Equals(NS_GET_IID(nsISecurityEventSink)) )
{
nsCOMPtr<nsIURILoader> uriLoader(do_GetService(NS_URI_LOADER_CONTRACTID));
NS_ENSURE_TRUE(uriLoader, NS_ERROR_FAILURE);
nsCOMPtr<nsIDocumentLoader> docLoader;
NS_ENSURE_SUCCESS(uriLoader->GetDocumentLoaderForContext(NS_STATIC_CAST(nsIDocShell*, this),
getter_AddRefs(docLoader)), NS_ERROR_FAILURE);
if (docLoader) {
nsCOMPtr<nsIInterfaceRequestor> requestor(do_QueryInterface(docLoader));
return requestor->GetInterface(aIID, aSink);
}
else
return NS_ERROR_FAILURE;
}
else
{
return QueryInterface(aIID, aSink);
}
NS_IF_ADDREF(((nsISupports*)*aSink));
return NS_OK;
}
//*****************************************************************************
// nsDocShell::nsIDocShell
//*****************************************************************************
NS_IMETHODIMP
nsDocShell::LoadURI(nsIURI* aURI, nsIDocShellLoadInfo* aLoadInfo, PRUint32 aLoadFlags)
{
nsresult rv;
nsCOMPtr<nsIURI> referrer;
nsCOMPtr<nsISupports> owner;
PRBool inheritOwner = PR_FALSE;
PRBool stopActiveDoc = PR_FALSE;
nsCOMPtr<nsISHEntry> shEntry;
nsXPIDLCString target;
PRUint32 loadType = MAKE_LOAD_TYPE(LOAD_NORMAL, aLoadFlags);
NS_ENSURE_ARG(aURI);
// Extract the info from the DocShellLoadInfo struct...
if(aLoadInfo) {
aLoadInfo->GetReferrer(getter_AddRefs(referrer));
nsDocShellInfoLoadType lt = nsIDocShellLoadInfo::loadNormal;
aLoadInfo->GetLoadType(&lt);
switch (lt)
{
case nsIDocShellLoadInfo::loadNormal:
loadType = LOAD_NORMAL;
break;
case nsIDocShellLoadInfo::loadNormalReplace:
loadType = LOAD_NORMAL_REPLACE;
break;
case nsIDocShellLoadInfo::loadHistory:
loadType = LOAD_HISTORY;
break;
case nsIDocShellLoadInfo::loadReloadNormal:
loadType = LOAD_RELOAD_NORMAL;
break;
case nsIDocShellLoadInfo::loadReloadBypassCache:
loadType = LOAD_RELOAD_BYPASS_CACHE;
break;
case nsIDocShellLoadInfo::loadReloadBypassProxy:
loadType = LOAD_RELOAD_BYPASS_PROXY;
break;
case nsIDocShellLoadInfo::loadReloadBypassProxyAndCache:
loadType = LOAD_RELOAD_BYPASS_PROXY_AND_CACHE;
break;
case nsIDocShellLoadInfo::loadLink:
loadType = LOAD_LINK;
break;
case nsIDocShellLoadInfo::loadRefresh:
loadType = LOAD_REFRESH;
break;
}
aLoadInfo->GetOwner(getter_AddRefs(owner));
aLoadInfo->GetInheritOwner(&inheritOwner);
aLoadInfo->GetStopActiveDocument(&stopActiveDoc);
aLoadInfo->GetSHEntry(getter_AddRefs(shEntry));
aLoadInfo->GetTarget(getter_Copies(target));
}
if (!shEntry && loadType != LOAD_NORMAL_REPLACE && mCurrentURI == nsnull) {
/* Check if we are in the middle of loading a subframe whose parent
* was originally loaded thro' Session History. ie., you were in a frameset
* page, went somewhere else and clicked 'back'. The loading of the root page
* is done and we are currently loading one of its children or sub-children.
*/
nsCOMPtr<nsIDocShellTreeItem> parentAsItem;
GetSameTypeParent(getter_AddRefs(parentAsItem));
// Try to get your SHEntry from your parent
if (parentAsItem) {
nsCOMPtr<nsIDocShellHistory> parent(do_QueryInterface(parentAsItem));
// XXX: Should we care if this QI fails?
if (parent) {
parent->GetChildSHEntry(mChildOffset, getter_AddRefs(shEntry));
if (shEntry) {
loadType = LOAD_HISTORY;
}
}
}
}
if (shEntry) {
rv = LoadHistoryEntry(shEntry, loadType);
} else {
rv = InternalLoad(aURI, referrer, owner, inheritOwner, stopActiveDoc, (const char*) target, nsnull,
nsnull, loadType, nsnull);
}
return rv;
}
NS_IMETHODIMP nsDocShell::LoadStream(nsIInputStream *aStream, nsIURI *aURI,
const char *aContentType, PRInt32 aContentLen,
nsIDocShellLoadInfo* aLoadInfo)
{
NS_ENSURE_ARG(aStream);
NS_ENSURE_ARG(aContentType);
NS_ENSURE_ARG(aContentLen);
// if the caller doesn't pass in a URI we need to create a dummy URI. necko
// currently requires a URI in various places during the load. Some consumers
// do as well.
nsCOMPtr<nsIURI> uri = aURI;
if (!uri) {
// HACK ALERT
nsresult rv = NS_OK;
uri = do_CreateInstance(kSimpleURICID, &rv);
if (NS_FAILED(rv)) return rv;
rv = uri->SetSpec("stream");
if (NS_FAILED(rv)) return rv;
}
LoadType loadType = LOAD_NORMAL;
if(aLoadInfo)
{
nsDocShellInfoLoadType lt= nsIDocShellLoadInfo::loadNormal;
(void)aLoadInfo->GetLoadType(&lt);
switch (lt)
{
case nsIDocShellLoadInfo::loadNormal:
loadType = LOAD_NORMAL;
break;
case nsIDocShellLoadInfo::loadNormalReplace:
loadType = LOAD_NORMAL_REPLACE;
break;
case nsIDocShellLoadInfo::loadHistory:
loadType = LOAD_HISTORY;
break;
case nsIDocShellLoadInfo::loadReloadNormal:
loadType = LOAD_RELOAD_NORMAL;
break;
case nsIDocShellLoadInfo::loadReloadBypassCache:
loadType = LOAD_RELOAD_BYPASS_CACHE;
break;
case nsIDocShellLoadInfo::loadReloadBypassProxy:
loadType = LOAD_RELOAD_BYPASS_PROXY;
break;
case nsIDocShellLoadInfo::loadReloadBypassProxyAndCache:
loadType = LOAD_RELOAD_BYPASS_PROXY_AND_CACHE;
break;
case nsIDocShellLoadInfo::loadLink:
loadType = LOAD_LINK;
break;
case nsIDocShellLoadInfo::loadRefresh:
loadType = LOAD_REFRESH;
break;
}
}
NS_ENSURE_SUCCESS(StopLoad(), NS_ERROR_FAILURE);
// Cancel any timers that were set for this loader.
(void)CancelRefreshURITimers();
mLoadType = loadType;
// build up a channel for this stream.
nsCOMPtr<nsIChannel> channel;
NS_ENSURE_SUCCESS(NS_NewInputStreamChannel(getter_AddRefs(channel), aURI, aStream,
aContentType, aContentLen), NS_ERROR_FAILURE);
nsCOMPtr<nsIURILoader> uriLoader(do_GetService(NS_URI_LOADER_CONTRACTID));
NS_ENSURE_TRUE(uriLoader, NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(DoChannelLoad(channel, nsIURILoader::viewNormal, nsnull, uriLoader), NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::CreateLoadInfo(nsIDocShellLoadInfo** aLoadInfo)
{
nsDocShellLoadInfo* loadInfo = new nsDocShellLoadInfo();
NS_ENSURE_TRUE(loadInfo, NS_ERROR_OUT_OF_MEMORY);
nsCOMPtr<nsIDocShellLoadInfo> localRef(loadInfo);
*aLoadInfo = localRef;
NS_ADDREF(*aLoadInfo);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::StopLoad()
{
// Cancel any timers that were set for this loader.
CancelRefreshURITimers();
if(mLoadCookie)
{
nsCOMPtr<nsIURILoader> uriLoader = do_GetService(NS_URI_LOADER_CONTRACTID);
if(uriLoader)
uriLoader->Stop(mLoadCookie);
}
PRInt32 n;
PRInt32 count = mChildren.Count();
for(n = 0; n < count; n++)
{
nsIDocShellTreeItem* shellItem = (nsIDocShellTreeItem*)mChildren.ElementAt(n);
nsCOMPtr<nsIDocShell> shell(do_QueryInterface(shellItem));
if(shell)
shell->StopLoad();
}
return NS_OK;
}
NS_IMETHODIMP
nsDocShell::GetDocLoaderObserver(nsIDocumentLoaderObserver * *aDocLoaderObserver)
{
NS_ENSURE_ARG_POINTER(aDocLoaderObserver);
*aDocLoaderObserver = mDocLoaderObserver;
NS_IF_ADDREF(*aDocLoaderObserver);
return NS_OK;
}
NS_IMETHODIMP
nsDocShell::SetDocLoaderObserver(nsIDocumentLoaderObserver * aDocLoaderObserver)
{
// it's legal for aDocLoaderObserver to be null.
mDocLoaderObserver = aDocLoaderObserver;
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetPresContext(nsIPresContext** aPresContext)
{
nsresult rv = NS_OK;
NS_ENSURE_ARG_POINTER(aPresContext);
*aPresContext = nsnull;
if (mContentViewer) {
nsCOMPtr<nsIDocumentViewer> docv(do_QueryInterface(mContentViewer));
if (docv) {
rv = docv->GetPresContext(*aPresContext);
}
}
// Fail silently, if no PresContext is available...
return rv;
}
NS_IMETHODIMP nsDocShell::GetPresShell(nsIPresShell** aPresShell)
{
nsresult rv = NS_OK;
NS_ENSURE_ARG_POINTER(aPresShell);
*aPresShell = nsnull;
nsCOMPtr<nsIPresContext> presContext;
(void) GetPresContext(getter_AddRefs(presContext));
if(presContext) {
rv = presContext->GetShell(aPresShell);
}
return rv;
}
NS_IMETHODIMP nsDocShell::GetContentViewer(nsIContentViewer** aContentViewer)
{
NS_ENSURE_ARG_POINTER(aContentViewer);
*aContentViewer = mContentViewer;
NS_IF_ADDREF(*aContentViewer);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetChromeEventHandler(nsIChromeEventHandler* aChromeEventHandler)
{
// Weak reference. Don't addref.
mChromeEventHandler = aChromeEventHandler;
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetChromeEventHandler(nsIChromeEventHandler** aChromeEventHandler)
{
NS_ENSURE_ARG_POINTER(aChromeEventHandler);
*aChromeEventHandler = mChromeEventHandler;
NS_IF_ADDREF(*aChromeEventHandler);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetParentURIContentListener(nsIURIContentListener**
aParent)
{
NS_ENSURE_ARG_POINTER(aParent);
NS_ENSURE_SUCCESS(EnsureContentListener(), NS_ERROR_FAILURE);
return mContentListener->GetParentContentListener(aParent);
}
NS_IMETHODIMP nsDocShell::SetParentURIContentListener(nsIURIContentListener*
aParent)
{
NS_ENSURE_SUCCESS(EnsureContentListener(), NS_ERROR_FAILURE);
return mContentListener->SetParentContentListener(aParent);
}
NS_IMETHODIMP nsDocShell::GetDocumentCharsetInfo(nsIDocumentCharsetInfo**
aDocumentCharsetInfo)
{
NS_ENSURE_ARG_POINTER(aDocumentCharsetInfo);
// if the mDocumentCharsetInfo does not exist already, we create it now
if (!mDocumentCharsetInfo) {
nsresult res = nsComponentManager::CreateInstance(kDocumentCharsetInfoCID,
NULL, NS_GET_IID(nsIDocumentCharsetInfo),
getter_AddRefs(mDocumentCharsetInfo));
if (NS_FAILED(res)) return NS_ERROR_FAILURE;
}
*aDocumentCharsetInfo = mDocumentCharsetInfo;
NS_IF_ADDREF(*aDocumentCharsetInfo);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetDocumentCharsetInfo(nsIDocumentCharsetInfo*
aDocumentCharsetInfo)
{
mDocumentCharsetInfo = aDocumentCharsetInfo;
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetAllowPlugins(PRBool* aAllowPlugins)
{
NS_ENSURE_ARG_POINTER(aAllowPlugins);
*aAllowPlugins = mAllowPlugins;
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetAllowPlugins(PRBool aAllowPlugins)
{
mAllowPlugins = aAllowPlugins;
//XXX should enable or disable a plugin host
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetViewMode(PRInt32* aViewMode)
{
NS_ENSURE_ARG_POINTER(aViewMode);
*aViewMode = mViewMode;
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetViewMode(PRInt32 aViewMode)
{
NS_ENSURE_ARG((viewNormal == aViewMode) || (viewSource == aViewMode));
PRBool reload = PR_FALSE;
if((mViewMode != aViewMode) && mCurrentURI)
reload = PR_TRUE;
mViewMode = aViewMode;
if(reload)
{
Reload(LOAD_FLAGS_NONE);
}
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetZoom(float* zoom)
{
NS_ENSURE_ARG_POINTER(zoom);
NS_ENSURE_SUCCESS(EnsureDeviceContext(), NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(mDeviceContext->GetZoom(*zoom), NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetZoom(float zoom)
{
NS_ENSURE_SUCCESS(EnsureDeviceContext(), NS_ERROR_FAILURE);
mDeviceContext->SetZoom(zoom);
// get the pres shell
nsCOMPtr<nsIPresShell> presShell;
NS_ENSURE_SUCCESS(GetPresShell(getter_AddRefs(presShell)), NS_ERROR_FAILURE);
NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);
// get the view manager
nsCOMPtr<nsIViewManager> vm;
NS_ENSURE_SUCCESS(presShell->GetViewManager(getter_AddRefs(vm)), NS_ERROR_FAILURE);
NS_ENSURE_TRUE(vm, NS_ERROR_FAILURE);
// get the root scrollable view
nsIScrollableView* scrollableView = nsnull;
vm->GetRootScrollableView(&scrollableView);
if(scrollableView)
scrollableView->ComputeScrollOffsets();
// get the root view
nsIView *rootView=nsnull; // views are not ref counted
vm->GetRootView(rootView);
if(rootView)
vm->UpdateView(rootView, 0);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetMarginWidth(PRInt32* aWidth)
{
NS_ENSURE_ARG_POINTER(aWidth);
*aWidth = mMarginWidth;
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetMarginWidth(PRInt32 aWidth)
{
mMarginWidth = aWidth;
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetMarginHeight(PRInt32* aHeight)
{
NS_ENSURE_ARG_POINTER(aHeight);
*aHeight = mMarginHeight;
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetMarginHeight(PRInt32 aHeight)
{
mMarginHeight = aHeight;
return NS_OK;
}
//*****************************************************************************
// nsDocShell::nsIDocShellTreeItem
//*****************************************************************************
NS_IMETHODIMP nsDocShell::GetName(PRUnichar** aName)
{
NS_ENSURE_ARG_POINTER(aName);
*aName = mName.ToNewUnicode();
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetName(const PRUnichar* aName)
{
mName = aName; // this does a copy of aName
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetItemType(PRInt32* aItemType)
{
NS_ENSURE_ARG_POINTER(aItemType);
*aItemType = mItemType;
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetItemType(PRInt32 aItemType)
{
NS_ENSURE_ARG((aItemType == typeChrome) || (typeContent == aItemType));
NS_ENSURE_STATE(!mParent);
mItemType = aItemType;
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetParent(nsIDocShellTreeItem** aParent)
{
NS_ENSURE_ARG_POINTER(aParent);
*aParent = mParent;
NS_IF_ADDREF(*aParent);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetParent(nsIDocShellTreeItem* aParent)
{
// null aParent is ok
/*
Note this doesn't do an addref on purpose. This is because the parent
is an implied lifetime. We don't want to create a cycle by refcounting
the parent.
*/
mParent = aParent;
nsCOMPtr<nsIURIContentListener> parentURIListener(do_GetInterface(aParent));
if(parentURIListener)
SetParentURIContentListener(parentURIListener);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetSameTypeParent(nsIDocShellTreeItem** aParent)
{
NS_ENSURE_ARG_POINTER(aParent);
*aParent = nsnull;
if(!mParent)
return NS_OK;
PRInt32 parentType;
NS_ENSURE_SUCCESS(mParent->GetItemType(&parentType), NS_ERROR_FAILURE);
if(parentType == mItemType)
{
*aParent = mParent;
NS_ADDREF(*aParent);
}
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetRootTreeItem(nsIDocShellTreeItem** aRootTreeItem)
{
NS_ENSURE_ARG_POINTER(aRootTreeItem);
*aRootTreeItem = NS_STATIC_CAST(nsIDocShellTreeItem*, this);
nsCOMPtr<nsIDocShellTreeItem> parent;
NS_ENSURE_SUCCESS(GetParent(getter_AddRefs(parent)), NS_ERROR_FAILURE);
while(parent)
{
*aRootTreeItem = parent;
NS_ENSURE_SUCCESS((*aRootTreeItem)->GetParent(getter_AddRefs(parent)), NS_ERROR_FAILURE);
}
NS_ADDREF(*aRootTreeItem);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetSameTypeRootTreeItem(nsIDocShellTreeItem** aRootTreeItem)
{
NS_ENSURE_ARG_POINTER(aRootTreeItem);
*aRootTreeItem = NS_STATIC_CAST(nsIDocShellTreeItem*, this);
nsCOMPtr<nsIDocShellTreeItem> parent;
NS_ENSURE_SUCCESS(GetSameTypeParent(getter_AddRefs(parent)), NS_ERROR_FAILURE);
while(parent)
{
*aRootTreeItem = parent;
NS_ENSURE_SUCCESS((*aRootTreeItem)->GetSameTypeParent(getter_AddRefs(parent)),
NS_ERROR_FAILURE);
}
NS_ADDREF(*aRootTreeItem);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::FindItemWithName(const PRUnichar *aName,
nsISupports* aRequestor, nsIDocShellTreeItem **_retval)
{
NS_ENSURE_ARG(aName);
NS_ENSURE_ARG_POINTER(_retval);
*_retval = nsnull; // if we don't find one, we return NS_OK and a null result
// This QI may fail, but the places where we want to compare, comparing
// against nsnull serves the same purpose.
nsCOMPtr<nsIDocShellTreeItem> reqAsTreeItem(do_QueryInterface(aRequestor));
// First we check our name.
if(mName.EqualsWithConversion(aName))
{
*_retval = NS_STATIC_CAST(nsIDocShellTreeItem*, this);
NS_ADDREF(*_retval);
return NS_OK;
}
// Second we check our children making sure not to ask a child if it
// is the aRequestor.
NS_ENSURE_SUCCESS(FindChildWithName(aName, PR_TRUE, PR_TRUE, reqAsTreeItem,
_retval),
NS_ERROR_FAILURE);
if(*_retval)
return NS_OK;
// Third if we have a parent and it isn't the requestor then we should ask
// it to do the search. If it is the requestor we should just stop here
// and let the parent do the rest.
// If we don't have a parent, then we should ask the docShellTreeOwner to do
// the search.
if(mParent)
{
if(mParent == reqAsTreeItem.get())
return NS_OK;
PRInt32 parentType;
mParent->GetItemType(&parentType);
if(parentType == mItemType)
{
NS_ENSURE_SUCCESS(mParent->FindItemWithName(aName,
NS_STATIC_CAST(nsIDocShellTreeItem*, this), _retval),
NS_ERROR_FAILURE);
return NS_OK;
}
// If the parent isn't of the same type fall through and ask tree owner.
}
// This QI may fail, but comparing against null serves the same purpose
nsCOMPtr<nsIDocShellTreeOwner> reqAsTreeOwner(do_QueryInterface(aRequestor));
if(mTreeOwner && (mTreeOwner != reqAsTreeOwner.get()))
{
NS_ENSURE_SUCCESS(mTreeOwner->FindItemWithName(aName,
NS_STATIC_CAST(nsIDocShellTreeItem*, this), _retval),
NS_ERROR_FAILURE);
}
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetTreeOwner(nsIDocShellTreeOwner** aTreeOwner)
{
NS_ENSURE_ARG_POINTER(aTreeOwner);
*aTreeOwner = mTreeOwner;
NS_IF_ADDREF(*aTreeOwner);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetTreeOwner(nsIDocShellTreeOwner* aTreeOwner)
{
// Don't automatically set the progress based on the tree owner for frames
if (!IsFrame()) {
nsCOMPtr<nsIWebProgress> webProgress(do_QueryInterface(mLoadCookie));
if (webProgress) {
nsCOMPtr<nsIWebProgressListener> oldListener(do_QueryInterface(mTreeOwner));
nsCOMPtr<nsIWebProgressListener> newListener(do_QueryInterface(aTreeOwner));
if (oldListener) {
webProgress->RemoveProgressListener(oldListener);
}
if (newListener) {
webProgress->AddProgressListener(newListener);
}
}
}
mTreeOwner = aTreeOwner; // Weak reference per API
PRInt32 i, n = mChildren.Count();
for(i = 0; i < n; i++)
{
nsIDocShellTreeItem* child = (nsIDocShellTreeItem*) mChildren.ElementAt(i); // doesn't addref the result
NS_ENSURE_TRUE(child, NS_ERROR_FAILURE);
PRInt32 childType = ~mItemType; // Set it to not us in case the get fails
child->GetItemType(&childType); // We don't care if this fails, if it does we won't set the owner
if(childType == mItemType)
child->SetTreeOwner(aTreeOwner);
}
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetChildOffset(PRInt32 aChildOffset)
{
mChildOffset = aChildOffset;
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetChildOffset(PRInt32 *aChildOffset)
{
NS_ENSURE_ARG_POINTER(aChildOffset);
*aChildOffset = mChildOffset;
return NS_OK;
}
//*****************************************************************************
// nsDocShell::nsIDocShellTreeNode
//*****************************************************************************
NS_IMETHODIMP nsDocShell::GetChildCount(PRInt32 *aChildCount)
{
NS_ENSURE_ARG_POINTER(aChildCount);
*aChildCount = mChildren.Count();
return NS_OK;
}
NS_IMETHODIMP nsDocShell::AddChild(nsIDocShellTreeItem *aChild)
{
NS_ENSURE_ARG_POINTER(aChild);
NS_ENSURE_SUCCESS(aChild->SetParent(this), NS_ERROR_FAILURE);
mChildren.AppendElement(aChild);
NS_ADDREF(aChild);
// Set the child's index in the parent's children list
// XXX What if the parent had different types of children?
// XXX in that case docshell hierarchyand SH hierarchy won't match.
PRInt32 childCount = mChildren.Count();
aChild->SetChildOffset(childCount-1);
/* Set the child's global history if the parent has one */
if (mGlobalHistory) {
nsCOMPtr<nsIDocShellHistory> dsHistoryChild(do_QueryInterface(aChild));
if (dsHistoryChild)
dsHistoryChild->SetGlobalHistory(mGlobalHistory);
}
PRInt32 childType = ~mItemType; // Set it to not us in case the get fails
aChild->GetItemType(&childType);
if(childType != mItemType)
return NS_OK;
// Everything below here is only done when the child is the same type.
aChild->SetTreeOwner(mTreeOwner);
nsCOMPtr<nsIDocShell> childAsDocShell(do_QueryInterface(aChild));
if(!childAsDocShell)
return NS_OK;
// Do some docShell Specific stuff.
nsXPIDLString defaultCharset;
nsXPIDLString forceCharset;
NS_ENSURE_TRUE(mContentViewer, NS_ERROR_FAILURE);
nsCOMPtr<nsIMarkupDocumentViewer> muDV = do_QueryInterface(mContentViewer);
if(muDV)
{
NS_ENSURE_SUCCESS(muDV->GetDefaultCharacterSet(getter_Copies(defaultCharset)),
NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(muDV->GetForceCharacterSet(getter_Copies(forceCharset)),
NS_ERROR_FAILURE);
}
nsCOMPtr<nsIContentViewer> childCV;
NS_ENSURE_SUCCESS(childAsDocShell->GetContentViewer(getter_AddRefs(childCV)),
NS_ERROR_FAILURE);
if(childCV)
{
nsCOMPtr<nsIMarkupDocumentViewer> childmuDV = do_QueryInterface(childCV);
if(childmuDV)
{
NS_ENSURE_SUCCESS(childmuDV->SetDefaultCharacterSet(defaultCharset),
NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(childmuDV->SetForceCharacterSet(forceCharset),
NS_ERROR_FAILURE);
}
}
// Now take this document's charset and set the parentCharset field of the
// child's DocumentCharsetInfo to it. We'll later use that field, in the
// loading process, for the charset choosing algorithm.
// If we fail, at any point, we just return NS_OK.
// This code has some performance impact. But this will be reduced when
// the current charset will finally be stored as an Atom, avoiding the
// alias resolution extra look-up.
// we are NOT going to propagate the charset is this Chrome's docshell
if (mItemType == nsIDocShellTreeItem::typeChrome) return NS_OK;
nsresult res = NS_OK;
// get the child's docCSInfo object
nsCOMPtr<nsIDocumentCharsetInfo> dcInfo = NULL;
res = childAsDocShell->GetDocumentCharsetInfo(getter_AddRefs(dcInfo));
if (NS_FAILED(res) || (!dcInfo)) return NS_OK;
// get the parent's current charset
nsCOMPtr<nsIDocumentViewer> docv(do_QueryInterface(mContentViewer));
if (!docv) return NS_OK;
nsCOMPtr<nsIDocument> doc;
res = docv->GetDocument(*getter_AddRefs(doc));
if (NS_FAILED(res) || (!doc)) return NS_OK;
nsAutoString parentCS;
res = doc->GetDocumentCharacterSet(parentCS);
if (NS_FAILED(res)) return NS_OK;
// set the child's parentCharset
res = dcInfo->SetParentCharset(&parentCS);
if (NS_FAILED(res)) return NS_OK;
// printf("### 1 >>> Adding child. Parent CS = %s. ItemType = %d.\n", parentCS.ToNewCString(), mItemType);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::RemoveChild(nsIDocShellTreeItem *aChild)
{
NS_ENSURE_ARG_POINTER(aChild);
if(mChildren.RemoveElement(aChild))
{
aChild->SetParent(nsnull);
aChild->SetTreeOwner(nsnull);
NS_RELEASE(aChild);
}
else
NS_ENSURE_TRUE(PR_FALSE, NS_ERROR_INVALID_ARG);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetChildAt(PRInt32 aIndex, nsIDocShellTreeItem** aChild)
{
NS_ENSURE_ARG_POINTER(aChild);
NS_ENSURE_ARG_RANGE(aIndex, 0, mChildren.Count() - 1);
*aChild = (nsIDocShellTreeItem*) mChildren.ElementAt(aIndex);
NS_IF_ADDREF(*aChild);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::FindChildWithName(const PRUnichar *aName,
PRBool aRecurse, PRBool aSameType, nsIDocShellTreeItem* aRequestor,
nsIDocShellTreeItem **_retval)
{
NS_ENSURE_ARG(aName);
NS_ENSURE_ARG_POINTER(_retval);
*_retval = nsnull; // if we don't find one, we return NS_OK and a null result
nsAutoString name(aName);
nsXPIDLString childName;
PRInt32 i, n = mChildren.Count();
for(i = 0; i < n; i++)
{
nsIDocShellTreeItem* child = (nsIDocShellTreeItem*) mChildren.ElementAt(i); // doesn't addref the result
NS_ENSURE_TRUE(child, NS_ERROR_FAILURE);
PRInt32 childType;
child->GetItemType(&childType);
if(aSameType && (childType != mItemType))
continue;
child->GetName(getter_Copies(childName));
if(name.EqualsWithConversion(childName))
{
*_retval = child;
NS_ADDREF(*_retval);
break;
}
if(childType != mItemType) //Only ask it to check children if it is same type
continue;
if(aRecurse && (aRequestor != child)) // Only ask the child if it isn't the requestor
{
// See if child contains the shell with the given name
nsCOMPtr<nsIDocShellTreeNode> childAsNode(do_QueryInterface(child));
if(child)
{
NS_ENSURE_SUCCESS(childAsNode->FindChildWithName(aName, PR_TRUE,
aSameType, NS_STATIC_CAST(nsIDocShellTreeItem*, this), _retval),
NS_ERROR_FAILURE);
}
}
if(*_retval) // found it
return NS_OK;
}
return NS_OK;
}
//*****************************************************************************
// nsDocShell::nsIDocShellHistory
//*****************************************************************************
NS_IMETHODIMP
nsDocShell::GetChildSHEntry(PRInt32 aChildOffset, nsISHEntry ** aResult)
{
nsresult rv = NS_OK;
NS_ENSURE_ARG_POINTER(aResult);
*aResult = nsnull;
//
// A nsISHEntry for a child is *only* available when the parent is in
// the progress of loading a document too...
//
if (LSHE) {
nsCOMPtr<nsISHContainer> container(do_QueryInterface(LSHE));
if (container) {
rv = container->GetChildAt(aChildOffset, aResult);
}
}
return rv;
}
NS_IMETHODIMP
nsDocShell::AddChildSHEntry(nsISHEntry * aCloneRef, nsISHEntry * aNewEntry,
PRInt32 aChildOffset)
{
nsresult rv;
if (LSHE) {
/* You get here if you are currently building a
* hierarchy ie.,you just visited a frameset page
*/
nsCOMPtr<nsISHContainer> container(do_QueryInterface(LSHE, &rv));
if(container)
rv = container->AddChild(aNewEntry, aChildOffset);
}
else if (mSessionHistory) {
/* You are currently in the rootDocShell.
* You will get here when a subframe has a new url
* to load and you have walked up the tree all the
* way to the top
*/
PRInt32 index=-1;
nsCOMPtr<nsISHEntry> currentEntry;
mSessionHistory->GetIndex(&index);
if (index < 0)
return NS_ERROR_FAILURE;
rv = mSessionHistory->GetEntryAtIndex(index, PR_FALSE,
getter_AddRefs(currentEntry));
if (currentEntry) {
nsCOMPtr<nsISHEntry> nextEntry; //(do_CreateInstance(NS_SHENTRY_CONTRACTID));
// NS_ENSURE_TRUE(result, NS_ERROR_FAILURE);
rv = CloneAndReplace(currentEntry, aCloneRef, aNewEntry,
getter_AddRefs(nextEntry));
if (NS_SUCCEEDED(rv)) {
rv = mSessionHistory->AddEntry(nextEntry, PR_TRUE);
}
}
}
else {
/* You will get here when you are in a subframe and
* a new url has been loaded on you.
* The OSHE in this subframe will be the previous url's
* OSHE. This OSHE will be used as the identification
* for this subframe in the CloneAndReplace function.
*/
nsCOMPtr<nsIDocShellHistory> parent(do_QueryInterface(mParent, &rv));
if (parent) {
if (!aCloneRef) {
aCloneRef = OSHE;
}
rv = parent->AddChildSHEntry(aCloneRef, aNewEntry, aChildOffset);
}
}
return rv;
}
NS_IMETHODIMP nsDocShell::SetGlobalHistory(nsIGlobalHistory* aGlobalHistory)
{
mGlobalHistory = aGlobalHistory;
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetGlobalHistory(nsIGlobalHistory** aGlobalHistory)
{
NS_ENSURE_ARG_POINTER(aGlobalHistory);
*aGlobalHistory = mGlobalHistory;
NS_IF_ADDREF(*aGlobalHistory);
return NS_OK;
}
//*****************************************************************************
// nsDocShell::nsIWebNavigation
//*****************************************************************************
NS_IMETHODIMP nsDocShell::GetCanGoBack(PRBool* aCanGoBack)
{
nsCOMPtr<nsIDocShellTreeItem> root;
//Get the root docshell
GetSameTypeRootTreeItem(getter_AddRefs(root));
NS_ENSURE_TRUE(root, NS_ERROR_FAILURE);
// QI to nsIWebNavigation
nsCOMPtr<nsIWebNavigation> rootAsWebnav(do_QueryInterface(root));
if (rootAsWebnav) {
// Get the handle to SH from the root docshell
nsCOMPtr<nsISHistory> rootSH;
rootAsWebnav->GetSessionHistory(getter_AddRefs(rootSH));
NS_ENSURE_TRUE(rootSH, NS_ERROR_FAILURE);
// QI SH to nsIWebNavigation
nsCOMPtr<nsIWebNavigation> webNav(do_QueryInterface(rootSH));
if (webNav)
return webNav->GetCanGoBack(aCanGoBack);
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP nsDocShell::GetCanGoForward(PRBool* aCanGoForward)
{
nsCOMPtr<nsIDocShellTreeItem> root;
//Get the root docshell
GetSameTypeRootTreeItem(getter_AddRefs(root));
NS_ENSURE_TRUE(root, NS_ERROR_FAILURE);
// QI to nsIWebNavigation
nsCOMPtr<nsIWebNavigation> rootAsWebnav(do_QueryInterface(root));
if (rootAsWebnav) {
// Get the handle to SH from the root docshell
nsCOMPtr<nsISHistory> rootSH;
rootAsWebnav->GetSessionHistory(getter_AddRefs(rootSH));
NS_ENSURE_TRUE(rootSH, NS_ERROR_FAILURE);
// QI SH to nsIWebNavigation
nsCOMPtr<nsIWebNavigation> webNav(do_QueryInterface(rootSH));
if (webNav)
return webNav->GetCanGoForward(aCanGoForward);
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP nsDocShell::GoBack()
{
nsCOMPtr<nsIDocShellTreeItem> root;
//Get the root docshell
GetSameTypeRootTreeItem(getter_AddRefs(root));
NS_ENSURE_TRUE(root, NS_ERROR_FAILURE);
// QI to nsIWebNavigation
nsCOMPtr<nsIWebNavigation> rootAsWebnav(do_QueryInterface(root));
if (rootAsWebnav) {
// Get the handle to SH from the root docshell
nsCOMPtr<nsISHistory> rootSH;
rootAsWebnav->GetSessionHistory(getter_AddRefs(rootSH));
NS_ENSURE_TRUE(rootSH, NS_ERROR_FAILURE);
// QI SH to nsIWebNavigation
nsCOMPtr<nsIWebNavigation> webNav(do_QueryInterface(rootSH));
if (webNav)
return webNav->GoBack();
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP nsDocShell::GoForward()
{
nsCOMPtr<nsIDocShellTreeItem> root;
//Get the root docshell
GetSameTypeRootTreeItem(getter_AddRefs(root));
NS_ENSURE_TRUE(root, NS_ERROR_FAILURE);
// QI to nsIWebNavigation
nsCOMPtr<nsIWebNavigation> rootAsWebnav(do_QueryInterface(root));
if (rootAsWebnav) {
// Get the handle to SH from the root docshell
nsCOMPtr<nsISHistory> rootSH;
rootAsWebnav->GetSessionHistory(getter_AddRefs(rootSH));
NS_ENSURE_TRUE(rootSH, NS_ERROR_FAILURE);
// QI SH to nsIWebNavigation
nsCOMPtr<nsIWebNavigation> webNav(do_QueryInterface(rootSH));
if (webNav)
return webNav->GoForward();
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsDocShell::GotoIndex(PRInt32 aIndex)
{
nsCOMPtr<nsIDocShellTreeItem> root;
//Get the root docshell
GetSameTypeRootTreeItem(getter_AddRefs(root));
NS_ENSURE_TRUE(root, NS_ERROR_FAILURE);
// QI to nsIWebNavigation
nsCOMPtr<nsIWebNavigation> rootAsWebnav(do_QueryInterface(root));
if (rootAsWebnav) {
// Get the handle to SH from the root docshell
nsCOMPtr<nsISHistory> rootSH;
rootAsWebnav->GetSessionHistory(getter_AddRefs(rootSH));
NS_ENSURE_TRUE(rootSH, NS_ERROR_FAILURE);
// QI SH to nsIWebNavigation
nsCOMPtr<nsIWebNavigation> webNav(do_QueryInterface(rootSH));
if (webNav)
return webNav->GotoIndex(aIndex);
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP nsDocShell::LoadURI(const PRUnichar* aURI, PRUint32 aLoadFlags)
{
nsCOMPtr<nsIURI> uri;
nsresult rv = CreateFixupURI(aURI, getter_AddRefs(uri));
if(NS_ERROR_UNKNOWN_PROTOCOL == rv)
{
// we weren't able to find a protocol handler
nsCOMPtr<nsIPrompt> prompter;
nsCOMPtr<nsIStringBundle> stringBundle;
GetPromptAndStringBundle(getter_AddRefs(prompter),
getter_AddRefs(stringBundle));
NS_ENSURE_TRUE(stringBundle, NS_ERROR_FAILURE);
nsXPIDLString messageStr;
NS_ENSURE_SUCCESS(stringBundle->GetStringFromName(NS_ConvertASCIItoUCS2("protocolNotFound").GetUnicode(),
getter_Copies(messageStr)), NS_ERROR_FAILURE);
nsAutoString uriString(aURI);
PRInt32 colon = uriString.FindChar(':');
// extract the scheme
nsAutoString scheme;
uriString.Left(scheme, colon);
nsCAutoString cScheme;
cScheme.AssignWithConversion(scheme);
PRUnichar *msg = nsTextFormatter::smprintf(messageStr, cScheme.GetBuffer());
if (!msg) return NS_ERROR_OUT_OF_MEMORY;
prompter->Alert(nsnull, msg);
nsTextFormatter::smprintf_free(msg);
} // end unknown protocol
if(!uri)
return NS_ERROR_FAILURE;
NS_ENSURE_SUCCESS(LoadURI(uri, nsnull, aLoadFlags), NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::Reload(PRUint32 aReloadFlags)
{
NS_ASSERTION(((aReloadFlags & 0xf) == 0), "Reload command not updated to use load flags!");
#ifdef SH_IN_FRAMES
// XXX Honor the reload type
//NS_ENSURE_STATE(mCurrentURI);
// XXXTAB Convert reload type to our type
LoadType type = LOAD_RELOAD_NORMAL;
if ( aReloadFlags & LOAD_FLAGS_BYPASS_CACHE &&
aReloadFlags & LOAD_FLAGS_BYPASS_PROXY )
type = LOAD_RELOAD_BYPASS_PROXY_AND_CACHE;
#if 0
nsCOMPtr<nsISHEntry> entry;
if (OSHE) {
/* We should fall here in most cases including subframes & refreshes */
entry = OSHE;
} else if (mSessionHistory) {
/* In case we fail above, as a last ditch effort, we
* reload the whole page.
*/
PRInt32 index = -1;
NS_ENSURE_SUCCESS(mSessionHistory->GetIndex(&index), NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(mSessionHistory->GetEntryAtIndex(index, PR_FALSE,
getter_AddRefs(entry)), NS_ERROR_FAILURE);
NS_ENSURE_TRUE(entry, NS_ERROR_FAILURE);
}
else {
//May be one of those <META> charset reloads in a composer or Messenger
return InternalLoad(mCurrentURI, mReferrerURI, nsnull, PR_TRUE, PR_FALSE, nsnull,
nsnull, nsnull, type);
}
#else
// OK. Atleast for the heck of it, pollmann says that he doesn't crash
// in bug 45297 if he just did the following, instead of the one in #if 0.
// If this really keeps the crash from re-occuring, may be this can stay. However
// there is no major difference between this one and the one inside #if 0
return InternalLoad(mCurrentURI, mReferrerURI, nsnull, PR_TRUE, PR_FALSE, nsnull,
nsnull, nsnull, type);
#endif /* 0 */
// return LoadHistoryEntry(entry, type);
#else
// XXX Honor the reload type
NS_ENSURE_STATE(mCurrentURI);
// XXXTAB Convert reload type to our type
LoadType type = LOAD_RELOAD_NORMAL;
if ( aReloadFlags & LOAD_FLAGS_BYPASS_CACHE &&
aReloadFlags & LOAD_FLAGS_BYPASS_PROXY )
type = LOAD_RELOAD_BYPASS_PROXY_AND_CACHE;
UpdateCurrentSessionHistory();
NS_ENSURE_SUCCESS(InternalLoad(mCurrentURI, mReferrerURI, nsnull, PR_TRUE, PR_FALSE,
nsnull, nsnull, nsnull, type),
NS_ERROR_FAILURE);
return NS_OK;
#endif /* SH_IN_FRAMES */
}
NS_IMETHODIMP nsDocShell::Stop()
{
// Cancel any timers that were set for this loader.
CancelRefreshURITimers();
if(mContentViewer)
mContentViewer->Stop();
if(mLoadCookie)
{
nsCOMPtr<nsIURILoader> uriLoader = do_GetService(NS_URI_LOADER_CONTRACTID);
if(uriLoader)
uriLoader->Stop(mLoadCookie);
}
PRInt32 n;
PRInt32 count = mChildren.Count();
for(n = 0; n < count; n++)
{
nsIDocShellTreeItem* shell = (nsIDocShellTreeItem*)mChildren.ElementAt(n);
nsCOMPtr<nsIWebNavigation> shellAsNav(do_QueryInterface(shell));
if(shellAsNav)
shellAsNav->Stop();
}
return NS_OK;
}
/*
NS_IMETHODIMP nsDocShell::SetDocument(nsIDOMDocument* aDocument,
const PRUnichar* aContentType)
{
//XXX First Checkin
NS_ERROR("Not Yet Implemented");
return NS_ERROR_FAILURE;
}
*/
NS_IMETHODIMP nsDocShell::GetDocument(nsIDOMDocument** aDocument)
{
NS_ENSURE_ARG_POINTER(aDocument);
NS_ENSURE_STATE(mContentViewer);
return mContentViewer->GetDOMDocument(aDocument);
}
NS_IMETHODIMP nsDocShell::GetCurrentURI(nsIURI** aURI)
{
NS_ENSURE_ARG_POINTER(aURI);
*aURI = mCurrentURI;
NS_IF_ADDREF(*aURI);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetSessionHistory(nsISHistory* aSessionHistory)
{
NS_ENSURE_TRUE(aSessionHistory, NS_ERROR_FAILURE);
// make sure that we are the root docshell and
// set a handle to root docshell in SH.
nsCOMPtr<nsIDocShellTreeItem> root;
/* Get the root docshell. If *this* is the root docshell
* then save a handle to *this* in SH. SH needs it to do
* traversions thro' its entries
*/
GetSameTypeRootTreeItem(getter_AddRefs(root));
NS_ENSURE_TRUE(root, NS_ERROR_FAILURE);
if (root.get() == NS_STATIC_CAST(nsIDocShellTreeItem *, this)) {
mSessionHistory = aSessionHistory;
mSessionHistory->SetRootDocShell(this);
return NS_OK;
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP nsDocShell::GetSessionHistory(nsISHistory** aSessionHistory)
{
NS_ENSURE_ARG_POINTER(aSessionHistory);
if (mSessionHistory) {
*aSessionHistory = mSessionHistory;
NS_IF_ADDREF(*aSessionHistory);
return NS_OK;
}
return NS_ERROR_FAILURE;
}
//*****************************************************************************
// nsDocShell::nsIBaseWindow
//*****************************************************************************
NS_IMETHODIMP nsDocShell::InitWindow(nativeWindow parentNativeWindow,
nsIWidget* parentWidget, PRInt32 x, PRInt32 y, PRInt32 cx, PRInt32 cy)
{
NS_ENSURE_ARG(parentWidget); // DocShells must get a widget for a parent
SetParentWidget(parentWidget);
SetPositionAndSize(x, y, cx, cy, PR_FALSE);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::Create()
{
NS_ENSURE_STATE(!mContentViewer);
mPrefs = do_GetService(NS_PREF_CONTRACTID);
//GlobalHistory is now set in SetGlobalHistory
// mGlobalHistory = do_GetService(NS_GLOBALHISTORY_CONTRACTID);
// i don't want to read this pref in every time we load a url
// so read it in once here and be done with it...
mPrefs->GetBoolPref("network.protocols.useSystemDefaults", &mUseExternalProtocolHandler);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::Destroy()
{
// Stop any URLs that are currently being loaded...
Stop();
if(mDocLoader)
{
mDocLoader->Destroy();
mDocLoader->SetContainer(nsnull);
}
SetDocLoaderObserver(nsnull);
// Save the state of the current document, before destroying the window.
// This is needed to capture the state of a frameset when the new document
// causes the frameset to be destroyed...
PersistLayoutHistoryState();
// Remove this docshell from its parent's child list
nsCOMPtr<nsIDocShellTreeNode> docShellParentAsNode(do_QueryInterface(mParent));
if(docShellParentAsNode)
docShellParentAsNode->RemoveChild(this);
mContentViewer = nsnull;
DestroyChildren();
mDocLoader = nsnull;
mDocLoaderObserver = nsnull;
mParentWidget = nsnull;
mPrefs = nsnull;
mCurrentURI = nsnull;
if(mScriptGlobal)
{
mScriptGlobal->SetDocShell(nsnull);
mScriptGlobal = nsnull;
}
if(mScriptContext)
{
mScriptContext->SetOwner(nsnull);
mScriptContext = nsnull;
}
mScriptGlobal = nsnull;
mScriptContext = nsnull;
mSessionHistory = nsnull;
SetTreeOwner(nsnull);
SetLoadCookie(nsnull);
if(mInitInfo)
{
delete mInitInfo;
mInitInfo = nsnull;
}
if(mContentListener)
{
mContentListener->DocShell(nsnull);
NS_RELEASE(mContentListener);
}
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetPosition(PRInt32 x, PRInt32 y)
{
if(mContentViewer)
NS_ENSURE_SUCCESS(mContentViewer->Move(x, y), NS_ERROR_FAILURE);
else if(InitInfo())
{
mInitInfo->x = x;
mInitInfo->y = y;
}
else
NS_ENSURE_TRUE(PR_FALSE, NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetPosition(PRInt32* aX, PRInt32* aY)
{
PRInt32 dummyHolder;
return GetPositionAndSize(aX, aY, &dummyHolder, &dummyHolder);
}
NS_IMETHODIMP nsDocShell::SetSize(PRInt32 aCX, PRInt32 aCY, PRBool aRepaint)
{
PRInt32 x = 0, y = 0;
GetPosition(&x, &y);
return SetPositionAndSize(x, y, aCX, aCY, aRepaint);
}
NS_IMETHODIMP nsDocShell::GetSize(PRInt32* aCX, PRInt32* aCY)
{
PRInt32 dummyHolder;
return GetPositionAndSize(&dummyHolder, &dummyHolder, aCX, aCY);
}
NS_IMETHODIMP nsDocShell::SetPositionAndSize(PRInt32 x, PRInt32 y, PRInt32 cx,
PRInt32 cy, PRBool fRepaint)
{
if(mContentViewer)
{
//XXX Border figured in here or is that handled elsewhere?
nsRect bounds(x, y, cx, cy);
NS_ENSURE_SUCCESS(mContentViewer->SetBounds(bounds), NS_ERROR_FAILURE);
}
else if(InitInfo())
{
mInitInfo->x = x;
mInitInfo->y = y;
mInitInfo->cx = cx;
mInitInfo->cy = cy;
}
else
NS_ENSURE_TRUE(PR_FALSE, NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetPositionAndSize(PRInt32* x, PRInt32* y, PRInt32* cx,
PRInt32* cy)
{
if(mContentViewer)
{
nsRect bounds;
NS_ENSURE_SUCCESS(mContentViewer->GetBounds(bounds), NS_ERROR_FAILURE);
if(x)
*x = bounds.x;
if(y)
*y = bounds.y;
if(cx)
*cx = bounds.width;
if(cy)
*cy = bounds.height;
}
else if(InitInfo())
{
if(x)
*x = mInitInfo->x;
if(y)
*y = mInitInfo->y;
if(cx)
*cx = mInitInfo->cx;
if(cy)
*cy = mInitInfo->cy;
}
else
NS_ENSURE_TRUE(PR_FALSE, NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::Repaint(PRBool aForce)
{
nsCOMPtr<nsIDocumentViewer> docViewer(do_QueryInterface(mContentViewer));
NS_ENSURE_TRUE(docViewer, NS_ERROR_FAILURE);
nsCOMPtr<nsIPresContext> context;
docViewer->GetPresContext(*getter_AddRefs(context));
NS_ENSURE_TRUE(context, NS_ERROR_FAILURE);
nsCOMPtr<nsIPresShell> shell;
context->GetShell(getter_AddRefs(shell));
NS_ENSURE_TRUE(shell, NS_ERROR_FAILURE);
nsCOMPtr<nsIViewManager> viewManager;
shell->GetViewManager(getter_AddRefs(viewManager));
NS_ENSURE_TRUE(viewManager, NS_ERROR_FAILURE);
// what about aForce ?
NS_ENSURE_SUCCESS(viewManager->UpdateAllViews(0), NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetParentWidget(nsIWidget** parentWidget)
{
NS_ENSURE_ARG_POINTER(parentWidget);
*parentWidget = mParentWidget;
NS_IF_ADDREF(*parentWidget);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetParentWidget(nsIWidget* aParentWidget)
{
NS_ENSURE_STATE(!mContentViewer);
mParentWidget = aParentWidget;
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetParentNativeWindow(nativeWindow* parentNativeWindow)
{
NS_ENSURE_ARG_POINTER(parentNativeWindow);
if(mParentWidget)
*parentNativeWindow = mParentWidget->GetNativeData(NS_NATIVE_WIDGET);
else
*parentNativeWindow = nsnull;
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetParentNativeWindow(nativeWindow parentNativeWindow)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsDocShell::GetVisibility(PRBool* aVisibility)
{
NS_ENSURE_ARG_POINTER(aVisibility);
if(!mContentViewer)
{
*aVisibility = PR_FALSE;
return NS_OK;
}
// get the pres shell
nsCOMPtr<nsIPresShell> presShell;
NS_ENSURE_SUCCESS(GetPresShell(getter_AddRefs(presShell)), NS_ERROR_FAILURE);
NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);
// get the view manager
nsCOMPtr<nsIViewManager> vm;
NS_ENSURE_SUCCESS(presShell->GetViewManager(getter_AddRefs(vm)), NS_ERROR_FAILURE);
NS_ENSURE_TRUE(vm, NS_ERROR_FAILURE);
// get the root view
nsIView *rootView=nsnull; // views are not ref counted
NS_ENSURE_SUCCESS(vm->GetRootView(rootView), NS_ERROR_FAILURE);
NS_ENSURE_TRUE(rootView, NS_ERROR_FAILURE);
// convert the view's visibility attribute to a bool
nsViewVisibility vis;
NS_ENSURE_TRUE(rootView->GetVisibility(vis), NS_ERROR_FAILURE);
*aVisibility = nsViewVisibility_kHide==vis ? PR_FALSE : PR_TRUE;
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetVisibility(PRBool aVisibility)
{
if(!mContentViewer)
return NS_OK;
if(aVisibility)
{
NS_ENSURE_SUCCESS(EnsureContentViewer(), NS_ERROR_FAILURE);
mContentViewer->Show();
}
else if(mContentViewer)
mContentViewer->Hide();
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetMainWidget(nsIWidget** aMainWidget)
{
// We don't create our own widget, so simply return the parent one.
return GetParentWidget(aMainWidget);
}
NS_IMETHODIMP nsDocShell::SetFocus()
{
nsCOMPtr<nsIWidget> mainWidget;
GetMainWidget(getter_AddRefs(mainWidget));
if(mainWidget)
mainWidget->SetFocus();
return NS_OK;
}
NS_IMETHODIMP nsDocShell::FocusAvailable(nsIBaseWindow* aCurrentFocus,
PRBool* aTookFocus)
{
NS_ENSURE_ARG_POINTER(aTookFocus);
// Next person we should call is first the parent otherwise the
// docshell tree owner.
nsCOMPtr<nsIBaseWindow> nextCallWin(do_QueryInterface(mParent));
if(!nextCallWin)
{
nextCallWin = do_QueryInterface(mTreeOwner);
}
//If the current focus is us, offer it to the next owner.
if(aCurrentFocus == NS_STATIC_CAST(nsIBaseWindow*, this))
{
if(nextCallWin)
{
nsresult ret = nextCallWin->FocusAvailable(aCurrentFocus, aTookFocus);
if (NS_SUCCEEDED(ret) && *aTookFocus)
return NS_OK;
}
if (!mChildren.Count())
{
//If we don't have children and our parent didn't want
//the focus then we should just stop now.
return NS_OK;
}
}
//Otherwise, check the chilren and offer it to the next sibling.
PRInt32 i;
PRInt32 n = mChildren.Count();
for(i = 0; i < n; i++)
{
nsCOMPtr<nsIBaseWindow>
child(do_QueryInterface((nsISupports*)mChildren.ElementAt(i)));
//If we have focus we offer it to our first child.
if(aCurrentFocus == NS_STATIC_CAST(nsIBaseWindow*, this))
{
if(NS_SUCCEEDED(child->SetFocus()))
{
*aTookFocus = PR_TRUE;
return NS_OK;
}
else
{
return NS_ERROR_FAILURE;
}
}
//If we don't have focus, find the child that does then
//offer focus to the next one.
if (child.get() == aCurrentFocus)
{
while(++i < n)
{
child = do_QueryInterface((nsISupports*)mChildren.ElementAt(i));
if(NS_SUCCEEDED(child->SetFocus()))
{
*aTookFocus = PR_TRUE;
return NS_OK;
}
else
{
return NS_ERROR_FAILURE;
}
}
}
}
//Reached the end of our child list. Call again to offer focus
//upwards and to start at the beginning of our child list if
//no one above us wants focus.
return FocusAvailable(this, aTookFocus);
}
NS_IMETHODIMP nsDocShell::GetTitle(PRUnichar** aTitle)
{
NS_ENSURE_ARG_POINTER(aTitle);
*aTitle = mTitle.ToNewUnicode();
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetTitle(const PRUnichar* aTitle)
{
// Store local title
mTitle = aTitle;
nsCOMPtr<nsIDocShellTreeItem> parent;
GetSameTypeParent(getter_AddRefs(parent));
// When title is set on the top object it should then be passed to the
// tree owner.
if(!parent)
{
nsCOMPtr<nsIBaseWindow> treeOwnerAsWin(do_QueryInterface(mTreeOwner));
if (treeOwnerAsWin)
treeOwnerAsWin->SetTitle(aTitle);
}
if(mGlobalHistory && mCurrentURI)
{
nsXPIDLCString url;
mCurrentURI->GetSpec(getter_Copies(url));
mGlobalHistory->SetPageTitle(url, aTitle);
}
// Update SessionHistory too with Title. Otherwise entry for current page
// has previous page's title.
if(mSessionHistory)
{
PRInt32 index = -1;
mSessionHistory->GetIndex(&index);
nsCOMPtr<nsISHEntry> shEntry;
mSessionHistory->GetEntryAtIndex(index, PR_FALSE, getter_AddRefs(shEntry));
if(shEntry)
shEntry->SetTitle(mTitle.GetUnicode());
}
return NS_OK;
}
//*****************************************************************************
// nsDocShell::nsIScrollable
//*****************************************************************************
NS_IMETHODIMP nsDocShell::GetCurScrollPos(PRInt32 scrollOrientation,
PRInt32* curPos)
{
NS_ENSURE_ARG_POINTER(curPos);
nsCOMPtr<nsIScrollableView> scrollView;
NS_ENSURE_SUCCESS(GetRootScrollableView(getter_AddRefs(scrollView)),
NS_ERROR_FAILURE);
if (!scrollView)
{
return NS_ERROR_FAILURE;
}
nscoord x, y;
NS_ENSURE_SUCCESS(scrollView->GetScrollPosition(x, y), NS_ERROR_FAILURE);
switch(scrollOrientation)
{
case ScrollOrientation_X:
*curPos = x;
return NS_OK;
case ScrollOrientation_Y:
*curPos = y;
return NS_OK;
default:
NS_ENSURE_TRUE(PR_FALSE, NS_ERROR_INVALID_ARG);
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP nsDocShell::SetCurScrollPos(PRInt32 scrollOrientation,
PRInt32 curPos)
{
nsCOMPtr<nsIScrollableView> scrollView;
NS_ENSURE_SUCCESS(GetRootScrollableView(getter_AddRefs(scrollView)),
NS_ERROR_FAILURE);
if (!scrollView)
{
return NS_ERROR_FAILURE;
}
PRInt32 other;
PRInt32 x;
PRInt32 y;
GetCurScrollPos(scrollOrientation, &other);
switch(scrollOrientation)
{
case ScrollOrientation_X:
x = curPos;
y = other;
break;
case ScrollOrientation_Y:
x = other;
y = curPos;
break;
default:
NS_ENSURE_TRUE(PR_FALSE, NS_ERROR_INVALID_ARG);
}
NS_ENSURE_SUCCESS(scrollView->ScrollTo(x, y, NS_VMREFRESH_IMMEDIATE),
NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetCurScrollPosEx(PRInt32 curHorizontalPos,
PRInt32 curVerticalPos)
{
nsCOMPtr<nsIScrollableView> scrollView;
NS_ENSURE_SUCCESS(GetRootScrollableView(getter_AddRefs(scrollView)),
NS_ERROR_FAILURE);
if (!scrollView)
{
return NS_ERROR_FAILURE;
}
NS_ENSURE_SUCCESS(scrollView->ScrollTo(curHorizontalPos, curVerticalPos,
NS_VMREFRESH_IMMEDIATE), NS_ERROR_FAILURE);
return NS_OK;
}
// XXX This is wrong
NS_IMETHODIMP nsDocShell::GetScrollRange(PRInt32 scrollOrientation,
PRInt32* minPos, PRInt32* maxPos)
{
NS_ENSURE_ARG_POINTER(minPos && maxPos);
nsCOMPtr<nsIScrollableView> scrollView;
NS_ENSURE_SUCCESS(GetRootScrollableView(getter_AddRefs(scrollView)),
NS_ERROR_FAILURE);
if (!scrollView)
{
return NS_ERROR_FAILURE;
}
PRInt32 cx;
PRInt32 cy;
NS_ENSURE_SUCCESS(scrollView->GetContainerSize(&cx, &cy), NS_ERROR_FAILURE);
*minPos = 0;
switch(scrollOrientation)
{
case ScrollOrientation_X:
*maxPos = cx;
return NS_OK;
case ScrollOrientation_Y:
*maxPos = cy;
return NS_OK;
default:
NS_ENSURE_TRUE(PR_FALSE, NS_ERROR_INVALID_ARG);
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP nsDocShell::SetScrollRange(PRInt32 scrollOrientation,
PRInt32 minPos, PRInt32 maxPos)
{
//XXX First Check
/*
Retrieves or Sets the valid ranges for the thumb. When maxPos is set to
something less than the current thumb position, curPos is set = to maxPos.
@return NS_OK - Setting or Getting completed successfully.
NS_ERROR_INVALID_ARG - returned when curPos is not within the
minPos and maxPos.
*/
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP nsDocShell::SetScrollRangeEx(PRInt32 minHorizontalPos,
PRInt32 maxHorizontalPos, PRInt32 minVerticalPos, PRInt32 maxVerticalPos)
{
//XXX First Check
/*
Retrieves or Sets the valid ranges for the thumb. When maxPos is set to
something less than the current thumb position, curPos is set = to maxPos.
@return NS_OK - Setting or Getting completed successfully.
NS_ERROR_INVALID_ARG - returned when curPos is not within the
minPos and maxPos.
*/
return NS_ERROR_FAILURE;
}
// Get scroll setting for this document only
//
// One important client is nsCSSFrameConstructor::ConstructRootFrame()
NS_IMETHODIMP nsDocShell::GetCurrentScrollbarPreferences(PRInt32 scrollOrientation,
PRInt32* scrollbarPref)
{
NS_ENSURE_ARG_POINTER(scrollbarPref);
switch(scrollOrientation) {
case ScrollOrientation_X:
*scrollbarPref = mCurrentScrollbarPref.x;
return NS_OK;
case ScrollOrientation_Y:
*scrollbarPref = mCurrentScrollbarPref.y;
return NS_OK;
default:
NS_ENSURE_TRUE(PR_FALSE, NS_ERROR_INVALID_ARG);
}
return NS_ERROR_FAILURE;
}
// This returns setting for all documents in this webshell
NS_IMETHODIMP nsDocShell::GetDefaultScrollbarPreferences(PRInt32 scrollOrientation,
PRInt32* scrollbarPref)
{
NS_ENSURE_ARG_POINTER(scrollbarPref);
switch(scrollOrientation) {
case ScrollOrientation_X:
*scrollbarPref = mDefaultScrollbarPref.x;
return NS_OK;
case ScrollOrientation_Y:
*scrollbarPref = mDefaultScrollbarPref.y;
return NS_OK;
default:
NS_ENSURE_TRUE(PR_FALSE, NS_ERROR_INVALID_ARG);
}
return NS_ERROR_FAILURE;
}
// Set scrolling preference for this document only.
//
// There are three possible values stored in the shell:
// 1) NS_STYLE_OVERFLOW_HIDDEN = no scrollbars
// 2) NS_STYLE_OVERFLOW_AUTO = scrollbars appear if needed
// 3) NS_STYLE_OVERFLOW_SCROLL = scrollbars always
//
// XXX Currently OVERFLOW_SCROLL isn't honored,
// as it is not implemented by Gfx scrollbars
// XXX setting has no effect after the root frame is created
// as it is not implemented by Gfx scrollbars
//
// One important client is HTMLContentSink::StartLayout()
NS_IMETHODIMP nsDocShell::SetCurrentScrollbarPreferences(PRInt32 scrollOrientation,
PRInt32 scrollbarPref)
{
switch(scrollOrientation) {
case ScrollOrientation_X:
mCurrentScrollbarPref.x = scrollbarPref;
return NS_OK;
case ScrollOrientation_Y:
mCurrentScrollbarPref.y = scrollbarPref;
return NS_OK;
default:
NS_ENSURE_TRUE(PR_FALSE, NS_ERROR_INVALID_ARG);
}
return NS_ERROR_FAILURE;
}
// Set scrolling preference for all documents in this shell
// One important client is nsHTMLFrameInnerFrame::CreateWebShell()
NS_IMETHODIMP nsDocShell::SetDefaultScrollbarPreferences(PRInt32 scrollOrientation,
PRInt32 scrollbarPref)
{
switch(scrollOrientation) {
case ScrollOrientation_X:
mDefaultScrollbarPref.x = scrollbarPref;
return NS_OK;
case ScrollOrientation_Y:
mDefaultScrollbarPref.y = scrollbarPref;
return NS_OK;
default:
NS_ENSURE_TRUE(PR_FALSE, NS_ERROR_INVALID_ARG);
}
return NS_ERROR_FAILURE;
}
// Reset 'current' scrollbar settings to 'default'.
// This must be called before every document load or else
// frameset scrollbar settings (e.g. <IFRAME SCROLLING="no">
// will not be preserved.
//
// One important client is HTMLContentSink::StartLayout()
NS_IMETHODIMP nsDocShell::ResetScrollbarPreferences()
{
mCurrentScrollbarPref = mDefaultScrollbarPref;
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetScrollbarVisibility(PRBool* verticalVisible,
PRBool* horizontalVisible)
{
nsCOMPtr<nsIScrollableView> scrollView;
NS_ENSURE_SUCCESS(GetRootScrollableView(getter_AddRefs(scrollView)),
NS_ERROR_FAILURE);
if (!scrollView)
{
return NS_ERROR_FAILURE;
}
PRBool vertVisible;
PRBool horizVisible;
NS_ENSURE_SUCCESS(scrollView->GetScrollbarVisibility(&vertVisible,
&horizVisible), NS_ERROR_FAILURE);
if(verticalVisible)
*verticalVisible = vertVisible;
if(horizontalVisible)
*horizontalVisible = horizVisible;
return NS_OK;
}
//*****************************************************************************
// nsDocShell::nsITextScroll
//*****************************************************************************
NS_IMETHODIMP nsDocShell::ScrollByLines(PRInt32 numLines)
{
nsCOMPtr<nsIScrollableView> scrollView;
NS_ENSURE_SUCCESS(GetRootScrollableView(getter_AddRefs(scrollView)),
NS_ERROR_FAILURE);
if (!scrollView)
{
return NS_ERROR_FAILURE;
}
NS_ENSURE_SUCCESS(scrollView->ScrollByLines(0, numLines), NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::ScrollByPages(PRInt32 numPages)
{
nsCOMPtr<nsIScrollableView> scrollView;
NS_ENSURE_SUCCESS(GetRootScrollableView(getter_AddRefs(scrollView)),
NS_ERROR_FAILURE);
if (!scrollView)
{
return NS_ERROR_FAILURE;
}
NS_ENSURE_SUCCESS(scrollView->ScrollByPages(numPages), NS_ERROR_FAILURE);
return NS_OK;
}
//*****************************************************************************
// nsDocShell::nsIScriptGlobalObjectOwner
//*****************************************************************************
NS_IMETHODIMP nsDocShell::GetScriptGlobalObject(nsIScriptGlobalObject** aGlobal)
{
NS_ENSURE_ARG_POINTER(aGlobal);
NS_ENSURE_SUCCESS(EnsureScriptEnvironment(), NS_ERROR_FAILURE);
*aGlobal = mScriptGlobal;
NS_IF_ADDREF(*aGlobal);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::ReportScriptError(nsIScriptError *errorObject)
{
nsresult rv;
if (errorObject == nsnull)
return NS_ERROR_NULL_POINTER;
// Get the console service, where we're going to register the error.
nsCOMPtr<nsIConsoleService> consoleService
(do_GetService("@mozilla.org/consoleservice;1"));
if (consoleService != nsnull)
{
rv = consoleService->LogMessage(errorObject);
if (NS_SUCCEEDED(rv))
{
return NS_OK;
}
else
{
return rv;
}
}
else
{
return NS_ERROR_NOT_AVAILABLE;
}
}
//*****************************************************************************
// nsDocShell::nsIRefreshURI
//*****************************************************************************
NS_IMETHODIMP nsDocShell::RefreshURI(nsIURI *aURI, PRInt32 aDelay, PRBool aRepeat)
{
NS_ENSURE_ARG(aURI);
nsRefreshTimer* refreshTimer = new nsRefreshTimer();
NS_ENSURE_TRUE(refreshTimer, NS_ERROR_OUT_OF_MEMORY);
nsCOMPtr<nsISupports> dataRef = refreshTimer; // Get the ref count to 1
refreshTimer->mDocShell = this;
refreshTimer->mURI = aURI;
refreshTimer->mDelay = aDelay;
refreshTimer->mRepeat = aRepeat;
if (!mRefreshURIList)
{
NS_ENSURE_SUCCESS(NS_NewISupportsArray(getter_AddRefs(mRefreshURIList)),
NS_ERROR_FAILURE);
}
nsCOMPtr<nsITimer> timer = do_CreateInstance("@mozilla.org/timer;1");
NS_ENSURE_TRUE(timer, NS_ERROR_FAILURE);
mRefreshURIList->AppendElement(timer); // owning timer ref
timer->Init(refreshTimer, aDelay);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::CancelRefreshURITimers()
{
if (!mRefreshURIList) return NS_OK;
PRUint32 n;
mRefreshURIList->Count(&n);
while (n)
{
nsCOMPtr<nsISupports> element;
mRefreshURIList->GetElementAt(0, getter_AddRefs(element));
nsCOMPtr<nsITimer> timer(do_QueryInterface(element));
mRefreshURIList->RemoveElementAt(0); // bye bye owning timer ref
if (timer)
timer->Cancel();
n--;
}
return NS_OK;
}
//*****************************************************************************
// nsDocShell::nsIContentViewerContainer
//*****************************************************************************
NS_IMETHODIMP nsDocShell::Embed(nsIContentViewer* aContentViewer,
const char * aCommand,
nsISupports * aExtraInfo)
{
#ifdef SH_IN_FRAMES
// Save the LayoutHistoryState of the previous document, before
// setting up new document
PersistLayoutHistoryState();
nsresult rv = SetupNewViewer(aContentViewer);
// XXX What if SetupNewViewer fails?
OSHE = LSHE;
PRBool updateHistory = PR_TRUE;
// Determine if this type of load should update history
switch(mLoadType)
{
case LOAD_NORMAL_REPLACE:
case LOAD_RELOAD_BYPASS_CACHE:
case LOAD_RELOAD_BYPASS_PROXY:
case LOAD_RELOAD_BYPASS_PROXY_AND_CACHE:
updateHistory = PR_FALSE;
break;
default:
break;
}
if (OSHE && updateHistory) {
nsCOMPtr<nsILayoutHistoryState> layoutState;
rv = OSHE->GetLayoutHistoryState(getter_AddRefs(layoutState));
if (layoutState) {
// This is a SH load. That's why there is a LayoutHistoryState in OSHE
nsCOMPtr<nsIPresShell> presShell;
rv = GetPresShell(getter_AddRefs(presShell));
if (NS_SUCCEEDED(rv) && presShell) {
rv = presShell->SetHistoryState(layoutState);
}
}
}
return NS_OK;
#else
return SetupNewViewer(aContentViewer);
#endif /* SH_IN_FRAMES */
}
//*****************************************************************************
// nsDocShell::nsIWebProgressListener
//*****************************************************************************
NS_IMETHODIMP
nsDocShell::OnProgressChange(nsIWebProgress *aProgress, nsIRequest *aRequest,
PRInt32 aCurSelfProgress, PRInt32 aMaxSelfProgress,
PRInt32 aCurTotalProgress, PRInt32 aMaxTotalProgress)
{
return NS_OK;
}
NS_IMETHODIMP
nsDocShell::OnStateChange(nsIWebProgress *aProgress, nsIRequest *aRequest,
PRInt32 aStateFlags, nsresult aStatus)
{
if ((aStateFlags & STATE_STOP) && (aStateFlags & STATE_IS_NETWORK)) {
LSHE = nsnull;
}
return NS_OK;
}
NS_IMETHODIMP
nsDocShell::OnLocationChange(nsIWebProgress *aProgress,
nsIRequest *aRequest,
nsIURI *aURI)
{
return NS_OK;
}
NS_IMETHODIMP
nsDocShell::OnStatusChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest,
nsresult aStatus,
const PRUnichar* aMessage)
{
return NS_OK;
}
NS_IMETHODIMP
nsDocShell::OnSecurityChange(nsIWebProgress *aWebProgress,
nsIRequest *aRequest,
PRInt32 state)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
//*****************************************************************************
// nsDocShell: Content Viewer Management
//*****************************************************************************
NS_IMETHODIMP nsDocShell::EnsureContentViewer()
{
if(mContentViewer)
return NS_OK;
return CreateAboutBlankContentViewer();
}
NS_IMETHODIMP nsDocShell::EnsureDeviceContext()
{
if(mDeviceContext)
return NS_OK;
mDeviceContext = do_CreateInstance(kDeviceContextCID);
NS_ENSURE_TRUE(mDeviceContext, NS_ERROR_FAILURE);
nsCOMPtr<nsIWidget> widget;
GetMainWidget(getter_AddRefs(widget));
NS_ENSURE_TRUE(widget, NS_ERROR_FAILURE);
mDeviceContext->Init(widget->GetNativeData(NS_NATIVE_WIDGET));
float dev2twip;
mDeviceContext->GetDevUnitsToTwips(dev2twip);
mDeviceContext->SetDevUnitsToAppUnits(dev2twip);
float twip2dev;
mDeviceContext->GetTwipsToDevUnits(twip2dev);
mDeviceContext->SetAppUnitsToDevUnits(twip2dev);
mDeviceContext->SetGamma(1.0f);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::CreateAboutBlankContentViewer()
{
// XXX
NS_ERROR("Not Implemented yet");
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP nsDocShell::CreateContentViewer(const char* aContentType,
nsIChannel* aOpenedChannel, nsIStreamListener** aContentHandler)
{
// Can we check the content type of the current content viewer
// and reuse it without destroying it and re-creating it?
nsCOMPtr<nsILoadGroup> loadGroup(do_GetInterface(mLoadCookie));
NS_ENSURE_TRUE(loadGroup, NS_ERROR_FAILURE);
// Instantiate the content viewer object
nsCOMPtr<nsIContentViewer> viewer;
if(NS_FAILED(NewContentViewerObj(aContentType, aOpenedChannel, loadGroup,
aContentHandler, getter_AddRefs(viewer))))
return NS_ERROR_FAILURE;
// we've created a new document so go ahead and call OnLoadingSite
mURIResultedInDocument = PR_TRUE;
OnLoadingSite(aOpenedChannel);
// let's try resetting the load group if we need to...
nsCOMPtr<nsILoadGroup> currentLoadGroup;
NS_ENSURE_SUCCESS(aOpenedChannel->GetLoadGroup(getter_AddRefs(currentLoadGroup)),
NS_ERROR_FAILURE);
if(currentLoadGroup.get() != loadGroup.get())
{
nsLoadFlags loadAttribs = 0;
//Cancel any URIs that are currently loading...
/// XXX: Need to do this eventually Stop();
//
// Retarget the document to this loadgroup...
//
if(currentLoadGroup)
currentLoadGroup->RemoveChannel(aOpenedChannel, nsnull, nsnull, nsnull);
aOpenedChannel->SetLoadGroup(loadGroup);
// Mark the channel as being a document URI...
aOpenedChannel->GetLoadAttributes(&loadAttribs);
loadAttribs |= nsIChannel::LOAD_DOCUMENT_URI;
aOpenedChannel->SetLoadAttributes(loadAttribs);
loadGroup->AddChannel(aOpenedChannel, nsnull);
}
#ifdef SH_IN_FRAMES
NS_ENSURE_SUCCESS(Embed(viewer, "", (nsISupports *) nsnull), NS_ERROR_FAILURE);
#else
NS_ENSURE_SUCCESS(SetupNewViewer(viewer), NS_ERROR_FAILURE);
#endif /* SH_IN_FRAMES */
mEODForCurrentDocument = PR_FALSE; // clear the current flag
return NS_OK;
}
nsresult nsDocShell::NewContentViewerObj(const char* aContentType,
nsIChannel* aOpenedChannel, nsILoadGroup* aLoadGroup,
nsIStreamListener** aContentHandler, nsIContentViewer** aViewer)
{
//XXX This should probably be some category thing....
char id[256];
PR_snprintf(id, sizeof(id), NS_DOCUMENT_LOADER_FACTORY_CONTRACTID_PREFIX "%s;1?type=%s",
(const char*)((viewSource == mViewMode) ? "view-source" : "view"),
aContentType);
// Create an instance of the document-loader-factory
nsCOMPtr<nsIDocumentLoaderFactory> docLoaderFactory(do_CreateInstance(id));
if(!docLoaderFactory)
{
// try again after loading plugins
nsresult err;
NS_WITH_SERVICE(nsIPluginHost, pluginHost, kPluginManagerCID, &err);
if(NS_FAILED(err))
return NS_ERROR_FAILURE;
pluginHost->LoadPlugins();
docLoaderFactory = do_CreateInstance(id);
if(!docLoaderFactory)
return NS_ERROR_FAILURE;
}
// Now create an instance of the content viewer
NS_ENSURE_SUCCESS(docLoaderFactory->CreateInstance(
(viewSource == mViewMode) ? "view-source" : "view",
aOpenedChannel, aLoadGroup, aContentType,
NS_STATIC_CAST(nsIContentViewerContainer*, this), nsnull,
aContentHandler, aViewer), NS_ERROR_FAILURE);
(*aViewer)->SetContainer(NS_STATIC_CAST(nsIContentViewerContainer*, this));
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetupNewViewer(nsIContentViewer* aNewViewer)
{
//
// Copy content viewer state from previous or parent content viewer.
//
// The following logic is mirrored in nsHTMLDocument::StartDocumentLoad!
//
// Do NOT to maintain a reference to the old content viewer outside
// of this "copying" block, or it will not be destroyed until the end of
// this routine and all <SCRIPT>s and event handlers fail! (bug 20315)
//
// In this block of code, if we get an error result, we return it
// but if we get a null pointer, that's perfectly legal for parent
// and parentContentViewer.
//
PRInt32 x = 0;
PRInt32 y = 0;
PRInt32 cx = 0;
PRInt32 cy = 0;
// This will get the size from the current content viewer or from the
// Init settings
GetPositionAndSize(&x, &y, &cx, &cy);
nsCOMPtr<nsIDocShellTreeItem> parentAsItem;
NS_ENSURE_SUCCESS(GetSameTypeParent(getter_AddRefs(parentAsItem)),
NS_ERROR_FAILURE);
nsCOMPtr<nsIDocShell> parent(do_QueryInterface(parentAsItem));
if(mContentViewer || parent)
{
nsCOMPtr<nsIMarkupDocumentViewer> oldMUDV;
if(mContentViewer)
{
// Get any interesting state from old content viewer
// XXX: it would be far better to just reuse the document viewer ,
// since we know we're just displaying the same document as before
oldMUDV = do_QueryInterface(mContentViewer);
}
else
{
// No old content viewer, so get state from parent's content viewer
nsCOMPtr<nsIContentViewer> parentContentViewer;
parent->GetContentViewer(getter_AddRefs(parentContentViewer));
oldMUDV = do_QueryInterface(parentContentViewer);
}
nsXPIDLString defaultCharset;
nsXPIDLString forceCharset;
nsXPIDLString hintCharset;
PRInt32 hintCharsetSource;
nsCOMPtr<nsIMarkupDocumentViewer> newMUDV(do_QueryInterface(aNewViewer));
if(oldMUDV && newMUDV)
{
NS_ENSURE_SUCCESS(oldMUDV->GetDefaultCharacterSet(getter_Copies(defaultCharset)),
NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(oldMUDV->GetForceCharacterSet(getter_Copies(forceCharset)),
NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(oldMUDV->GetHintCharacterSet(getter_Copies(hintCharset)),
NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(oldMUDV->GetHintCharacterSetSource(&hintCharsetSource),
NS_ERROR_FAILURE);
// set the old state onto the new content viewer
NS_ENSURE_SUCCESS(newMUDV->SetDefaultCharacterSet(defaultCharset),
NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(newMUDV->SetForceCharacterSet(forceCharset),
NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(newMUDV->SetHintCharacterSet(hintCharset),
NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(newMUDV->SetHintCharacterSetSource(hintCharsetSource),
NS_ERROR_FAILURE);
}
}
// XXX The command dispatcher is the only object that understands
// focus in our system truly, madly, and deeply. Right now it is attached to
// XUL documents, but eventually it will move into the embedding layer and be
// divorced from XUL.
//
// For 6.0, however, this isn't going to happen.
//
// It is necessary to obtain the command dispatcher to utilize its ability
// to suppress focus. This is necessary to fix Win32-only bugs related to
// a loss of focus when mContentViewer is set to null. The internal window
// is destroyed, and the OS focuses the parent window. This call ends up
// notifying the command dispatcher that the outer window should focus
// and this hoses us on any link traversal.
//
// Please do not touch any of the command dispatcher code here without
// testing bugs #28580 and 50509. These are immensely important bugs,
// so PLEASE take care not to regress them if you decide to alter this
// code later -- hyatt
nsCOMPtr<nsIDOMXULCommandDispatcher> commandDispatcher;
if (mScriptGlobal) {
nsCOMPtr<nsIDOMWindowInternal> rootWindow;
nsCOMPtr<nsPIDOMWindow> ourWindow = do_QueryInterface(mScriptGlobal);
ourWindow->GetPrivateRoot(getter_AddRefs(rootWindow));
nsCOMPtr<nsIDOMDocument> rootDocument;
rootWindow->GetDocument(getter_AddRefs(rootDocument));
nsCOMPtr<nsIDOMXULDocument> xulDoc = do_QueryInterface(rootDocument);
if (xulDoc) {
// See if we have a command dispatcher attached.
xulDoc->GetCommandDispatcher(getter_AddRefs(commandDispatcher));
if (commandDispatcher) {
// Suppress the command dispatcher.
commandDispatcher->SetSuppressFocus(PR_TRUE);
}
}
}
// Stop any activity that may be happening in the old document before
// releasing it...
if (mContentViewer) {
mContentViewer->Stop();
}
mContentViewer = nsnull;
// End copying block (Don't hold content/document viewer ref beyond here!!)
// See the book I wrote above regarding why the command dispatcher is
// being used here. I reiterate that this object is not really a XUL
// object and will move post-6.0, so please don't come into my cube
// and beat me for checking this in. -- hyatt
if (commandDispatcher)
commandDispatcher->SetSuppressFocus(PR_FALSE);
mContentViewer = aNewViewer;
nsCOMPtr<nsIWidget> widget;
NS_ENSURE_SUCCESS(GetMainWidget(getter_AddRefs(widget)), NS_ERROR_FAILURE);
nsRect bounds(x, y, cx, cy);
NS_ENSURE_SUCCESS(EnsureDeviceContext(), NS_ERROR_FAILURE);
if(NS_FAILED(mContentViewer->Init(widget,
mDeviceContext, bounds)))
{
mContentViewer = nsnull;
NS_ERROR("ContentViewer Initialization failed");
return NS_ERROR_FAILURE;
}
// XXX: It looks like the LayoutState gets restored again in Embed()
// right after the call to SetupNewViewer(...)
#ifndef SH_IN_FRAMES
// Restore up any HistoryLayoutState this page might have.
nsresult rv = NS_OK;
PRBool updateHistory = PR_TRUE;
// Determine if this type of load should update history
switch(mLoadType)
{
case LOAD_HISTORY:
case LOAD_RELOAD_NORMAL:
case LOAD_RELOAD_BYPASS_CACHE:
case LOAD_RELOAD_BYPASS_PROXY:
case LOAD_RELOAD_BYPASS_PROXY_AND_CACHE:
updateHistory = PR_FALSE;
break;
default:
break;
}
if (mSessionHistory && !updateHistory) {
PRInt32 index = 0;
mSessionHistory->GetIndex(&index);
if (-1 < index) {
nsCOMPtr<nsISHEntry> entry;
rv = mSessionHistory->GetEntryAtIndex(index, PR_FALSE, getter_AddRefs(entry));
if (NS_SUCCEEDED(rv) && entry) {
nsCOMPtr<nsILayoutHistoryState> layoutState;
rv = entry->GetLayoutHistoryState(getter_AddRefs(layoutState));
if (NS_SUCCEEDED(rv) && layoutState) {
nsCOMPtr<nsIPresShell> presShell;
rv = GetPresShell(getter_AddRefs(presShell));
if (NS_SUCCEEDED(rv) && presShell) {
rv = presShell->SetHistoryState(layoutState);
}
}
}
}
}
#endif /* SH_IN_FRAMES */
mContentViewer->Show();
// Now that we have switched documents, forget all of our children
DestroyChildren();
return NS_OK;
}
//*****************************************************************************
// nsDocShell: Site Loading
//*****************************************************************************
#ifdef SH_IN_FRAMES
NS_IMETHODIMP nsDocShell::InternalLoad(nsIURI* aURI, nsIURI* aReferrer,
nsISupports* aOwner, PRBool aInheritOwner, PRBool aStopActiveDoc, const char* aWindowTarget,
nsIInputStream* aPostData, nsIInputStream* aHeadersData,
PRUint32 aLoadType, nsISHEntry * aSHEntry)
#else
NS_IMETHODIMP nsDocShell::InternalLoad(nsIURI* aURI, nsIURI* aReferrer,
nsISupports* aOwner, PRBool aInheritOwner, PRBool aStopActiveDoc, const char* aWindowTarget,
nsIInputStream* aPostData, nsIInputStream* aHeadersData,
PRUint32 aLoadType)
#endif
{
mURIResultedInDocument = PR_FALSE; // reset the clock...
// Check to see if the new URI is an anchor in the existing document.
if ((aLoadType == LOAD_NORMAL ||
aLoadType == LOAD_NORMAL_REPLACE ||
aLoadType == LOAD_HISTORY ||
aLoadType == LOAD_LINK) && (aPostData == nsnull))
{
PRBool wasAnchor = PR_FALSE;
NS_ENSURE_SUCCESS(ScrollIfAnchor(aURI, &wasAnchor), NS_ERROR_FAILURE);
if(wasAnchor)
{
mLoadType = aLoadType;
mURIResultedInDocument = PR_TRUE;
OnNewURI(aURI, nsnull, mLoadType);
/* Clear out LSHE so that further anchor visits get
* recorded in SH and SH won't misbehave. i think this is
* sufficient for now to take care of any Sh mis-behaviors.
* Other option is to call OnEndDocumentLoad() with a dummy channel
* and uriloader and letting everybody know that we are done
* with this target load. I don't think that is necessay
* considering that nsIDocLoaderObserver is on its way out.
* Hopefully the following is sufficient.
*/
LSHE = nsnull;
/* Set the title for the SH entry for this target url. so that
* SH menus in go/back/forward buttons won't be empty for this.
*/
if(mSessionHistory)
{
PRInt32 index = -1;
mSessionHistory->GetIndex(&index);
nsCOMPtr<nsISHEntry> shEntry;
mSessionHistory->GetEntryAtIndex(index, PR_FALSE, getter_AddRefs(shEntry));
if(shEntry)
shEntry->SetTitle(mTitle.GetUnicode());
}
return NS_OK;
}
}
NS_ENSURE_SUCCESS(StopLoad(), NS_ERROR_FAILURE);
// Cancel any timers that were set for this loader.
CancelRefreshURITimers();
if (aStopActiveDoc && mContentViewer) {
mContentViewer->Stop();
}
mLoadType = aLoadType;
#ifdef SH_IN_FRAMES
// XXX: I think that LSHE should *always* be set to the new Entry.
// Even if it is null...
// if (aSHEntry)
LSHE = aSHEntry;
#endif
nsURILoadCommand loadCmd = nsIURILoader::viewNormal;
if(LOAD_LINK == aLoadType)
loadCmd = nsIURILoader::viewUserClick;
NS_ENSURE_SUCCESS(DoURILoad(aURI, aReferrer, aOwner, aInheritOwner,
loadCmd, aWindowTarget,
aPostData, aHeadersData), NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::CreateFixupURI(const PRUnichar* aStringURI,
nsIURI** aURI)
{
*aURI = nsnull;
nsAutoString uriString(aStringURI);
uriString.Trim(" "); // Cleanup the empty spaces that might be on each end.
// Eliminate embedded newlines, which single-line text fields now allow:
uriString.StripChars("\r\n");
// XXX nasty hack to check for the view-source: prefix
//
// The long term way and probably CORRECT way to do this is to write a
// protocol handler for the view-source: schema and have that feed back a
// content type that the docshell recognizes to mean to use viewSource mode.
//
const char cViewSource[] = "view-source:";
if (uriString.EqualsWithConversion(cViewSource, PR_TRUE, sizeof(cViewSource) - 1))
{
// Strip the view-source: prefix and set the docshell's view mode
nsAutoString newUri;
uriString.Mid(newUri, sizeof(cViewSource) - 1, -1);
uriString = newUri;
mLastViewMode = mViewMode;
mViewMode = viewSource;
mRestoreViewMode = PR_TRUE;
}
else if (mRestoreViewMode)
{
mRestoreViewMode = PR_FALSE;
mViewMode = mLastViewMode;
}
// Just try to create an URL out of it
NS_NewURI(aURI, uriString, nsnull);
if(*aURI)
return NS_OK;
// Check for if it is a file URL
FileURIFixup(uriString.GetUnicode(), aURI);
if(*aURI)
return NS_OK;
// See if it is a keyword
KeywordURIFixup(uriString.GetUnicode(), aURI);
if(*aURI)
return NS_OK;
// See if a protocol needs to be added
PRInt32 checkprotocol = uriString.Find("://",0);
// if no scheme (protocol) is found, assume http or ftp.
if (checkprotocol == -1) {
// find host name
PRInt32 hostPos = uriString.FindCharInSet("./:");
if (hostPos == -1)
hostPos = uriString.Length();
// extract host name
nsAutoString hostSpec;
uriString.Left(hostSpec, hostPos);
// insert url spec corresponding to host name
if (hostSpec.EqualsIgnoreCase("ftp"))
uriString.InsertWithConversion("ftp://", 0, 6);
else
uriString.InsertWithConversion("http://", 0, 7);
} // end if checkprotocol
return NS_NewURI(aURI, uriString, nsnull);
}
NS_IMETHODIMP nsDocShell::FileURIFixup(const PRUnichar* aStringURI,
nsIURI** aURI)
{
nsAutoString uriSpecIn(aStringURI);
nsAutoString uriSpecOut(aStringURI);
ConvertFileToStringURI(uriSpecIn, uriSpecOut);
if(0 == uriSpecOut.Find("file:", 0))
{
// if this is file url, we need to convert the URI
// from Unicode to the FS charset
nsCAutoString inFSCharset;
NS_ENSURE_SUCCESS(ConvertStringURIToFileCharset(uriSpecOut, inFSCharset),
NS_ERROR_FAILURE);
if(NS_SUCCEEDED(NS_NewURI(aURI, inFSCharset.GetBuffer(), nsnull)))
return NS_OK;
}
return NS_ERROR_FAILURE;
}
#define FILE_PROTOCOL "file://"
NS_IMETHODIMP nsDocShell::ConvertFileToStringURI(nsString& aIn, nsString& aOut)
{
#ifdef XP_PC
// Check for \ in the url-string or just a drive (PC)
if(kNotFound != aIn.FindChar(PRUnichar('\\')) || ((aIn.Length() == 2 ) && (aIn.Last() == PRUnichar(':') || aIn.Last() == PRUnichar('|'))))
{
#elif XP_UNIX
// Check if it starts with / or \ (UNIX)
const PRUnichar * up = aIn.GetUnicode();
if((PRUnichar('/') == *up) || (PRUnichar('\\') == *up))
{
#else
if(0)
{
// Do nothing (All others for now)
#endif
#ifdef XP_PC
// Translate '\' to '/'
aOut.ReplaceChar(PRUnichar('\\'), PRUnichar('/'));
aOut.ReplaceChar(PRUnichar(':'), PRUnichar('|'));
#endif
// Build the file URL
aOut.InsertWithConversion(FILE_PROTOCOL,0);
}
return NS_OK;
}
NS_IMETHODIMP nsDocShell::ConvertStringURIToFileCharset(nsString& aIn,
nsCString& aOut)
{
aOut = "";
// for file url, we need to convert the nsString to the file system
// charset before we pass to NS_NewURI
static nsAutoString fsCharset;
// find out the file system charset first
if(0 == fsCharset.Length())
{
fsCharset.AssignWithConversion("ISO-8859-1"); // set the fallback first.
nsCOMPtr<nsIPlatformCharset> plat(do_GetService(kPlatformCharsetCID));
NS_ENSURE_TRUE(plat, NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(plat->GetCharset(kPlatformCharsetSel_FileName, fsCharset),
NS_ERROR_FAILURE);
}
// We probably should cache ccm here.
// get a charset converter from the manager
nsCOMPtr<nsICharsetConverterManager> ccm(do_GetService(kCharsetConverterManagerCID));
NS_ENSURE_TRUE(ccm, NS_ERROR_FAILURE);
nsCOMPtr<nsIUnicodeEncoder> fsEncoder;
NS_ENSURE_SUCCESS(ccm->GetUnicodeEncoder(&fsCharset,
getter_AddRefs(fsEncoder)), NS_ERROR_FAILURE);
PRInt32 bufLen = 0;
NS_ENSURE_SUCCESS(fsEncoder->GetMaxLength(aIn.GetUnicode(), aIn.Length(),
&bufLen), NS_ERROR_FAILURE);
aOut.SetCapacity(bufLen+1);
PRInt32 srclen = aIn.Length();
NS_ENSURE_SUCCESS(fsEncoder->Convert(aIn.GetUnicode(), &srclen,
(char*)aOut.GetBuffer(), &bufLen), NS_ERROR_FAILURE);
((char*)aOut.GetBuffer())[bufLen]='\0';
aOut.SetLength(bufLen);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::KeywordURIFixup(const PRUnichar* aStringURI,
nsIURI** aURI)
{
NS_ENSURE_STATE(mPrefs);
PRBool keywordsEnabled = PR_FALSE;
NS_ENSURE_SUCCESS(mPrefs->GetBoolPref("keyword.enabled", &keywordsEnabled),
NS_ERROR_FAILURE);
if(!keywordsEnabled)
return NS_ERROR_FAILURE;
// These are keyword formatted strings
// "what is mozilla"
// "what is mozilla?"
// "?mozilla"
// "?What is mozilla"
// These are not keyword formatted strings
// "www.blah.com" - anything with a dot in it
// "nonQualifiedHost:80" - anything with a colon in it
// "nonQualifiedHost?"
// "nonQualifiedHost?args"
// "nonQualifiedHost?some args"
nsAutoString uriString(aStringURI);
if(uriString.FindChar('.') == -1 && uriString.FindChar(':') == -1)
{
PRInt32 qMarkLoc = uriString.FindChar('?');
PRInt32 spaceLoc = uriString.FindChar(' ');
PRBool keyword = PR_FALSE;
if(qMarkLoc == 0)
keyword = PR_TRUE;
else if((spaceLoc > 0) && ((qMarkLoc == -1) || (spaceLoc < qMarkLoc)))
keyword = PR_TRUE;
if(keyword)
{
nsCAutoString keywordSpec("keyword:");
char *utf8Spec = uriString.ToNewUTF8String();
if(utf8Spec)
{
char* escapedUTF8Spec = nsEscape(utf8Spec, url_Path);
if(escapedUTF8Spec)
{
keywordSpec.Append(escapedUTF8Spec);
NS_NewURI(aURI, keywordSpec.GetBuffer(), nsnull);
nsMemory::Free(escapedUTF8Spec);
} // escapedUTF8Spec
nsMemory::Free(utf8Spec);
} // utf8Spec
} // keyword
} // FindChar
if(*aURI)
return NS_OK;
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP nsDocShell::GetCurrentDocumentOwner(nsISupports** aOwner)
{
nsresult rv;
*aOwner = nsnull;
nsCOMPtr<nsIDocument> document;
//-- Get the current document
if (mContentViewer)
{
nsCOMPtr<nsIDocumentViewer> docViewer(do_QueryInterface(mContentViewer));
if (!docViewer) return NS_ERROR_FAILURE;
rv = docViewer->GetDocument(*getter_AddRefs(document));
}
else //-- If there's no document loaded yet, look at the parent (frameset)
{
nsCOMPtr<nsIDocShellTreeItem> parentItem;
rv = GetSameTypeParent(getter_AddRefs(parentItem));
if (NS_FAILED(rv) || !parentItem) return rv;
nsCOMPtr<nsIDOMWindowInternal> parentWindow(do_GetInterface(parentItem));
if (!parentWindow) return NS_OK;
nsCOMPtr<nsIDOMDocument> parentDomDoc;
rv = parentWindow->GetDocument(getter_AddRefs(parentDomDoc));
if (!parentDomDoc) return NS_OK;
document = do_QueryInterface(parentDomDoc);
}
//-- Get the document's principal
nsCOMPtr<nsIPrincipal> principal;
rv = document->GetPrincipal(getter_AddRefs(principal));
if (NS_FAILED(rv) || !principal) return NS_ERROR_FAILURE;
rv = principal->QueryInterface(NS_GET_IID(nsISupports),(void**)aOwner);
return rv;
}
NS_IMETHODIMP nsDocShell::DoURILoad(nsIURI* aURI, nsIURI* aReferrerURI,
nsISupports* aOwner, PRBool aInheritOwner, nsURILoadCommand aLoadCmd,
const char* aWindowTarget, nsIInputStream* aPostData,
nsIInputStream *aHeadersData)
{
static const char jsSchemeName[] = "javascript";
// if the load cmd is a user click....and we are supposed to try using
// external default protocol handlers....then try to see if we have one for
// this protocol
if (mUseExternalProtocolHandler && aLoadCmd == nsIURILoader::viewUserClick)
{
nsXPIDLCString urlScheme;
aURI->GetScheme(getter_Copies(urlScheme));
// don't do it for javascript urls!
if (urlScheme && nsCRT::strcasecmp(jsSchemeName, urlScheme)
&& (!nsCRT::strcasecmp(aWindowTarget,"_content") ||
!nsCRT::strcasecmp(aWindowTarget,"_blank")))
{
nsCOMPtr<nsIExternalProtocolService> extProtService (do_GetService(NS_EXTERNALPROTOCOLSERVICE_CONTRACTID));
PRBool haveHandler = PR_FALSE;
extProtService->ExternalProtocolHandlerExists(urlScheme, &haveHandler);
if (haveHandler)
return extProtService->LoadUrl(aURI);
}
}
nsCOMPtr<nsIURILoader> uriLoader(do_GetService(NS_URI_LOADER_CONTRACTID));
NS_ENSURE_TRUE(uriLoader, NS_ERROR_FAILURE);
// we need to get the load group from our load cookie so we can pass it into open uri...
nsCOMPtr<nsILoadGroup> loadGroup;
NS_ENSURE_SUCCESS(
uriLoader->GetLoadGroupForContext(NS_STATIC_CAST(nsIDocShell*, this),
getter_AddRefs(loadGroup)), NS_ERROR_FAILURE);
// open a channel for the url
nsCOMPtr<nsIChannel> channel;
nsresult rv;
rv = NS_OpenURI(getter_AddRefs(channel), aURI, nsnull, loadGroup,
NS_STATIC_CAST(nsIInterfaceRequestor*, this));
if(NS_FAILED(rv))
{
if(NS_ERROR_DOM_RETVAL_UNDEFINED == rv) // if causing the channel changed the
return NS_OK; // dom and there is nothing else to do
else
return NS_ERROR_FAILURE;
}
channel->SetOriginalURI(aURI);
nsCOMPtr<nsIHTTPChannel> httpChannel(do_QueryInterface(channel));
if(httpChannel)
{
// figure out if we need to set the post data stream on the channel...
// right now, this is only done for http channels.....
if(aPostData)
{
// XXX it's a bit of a hack to rewind the postdata stream here but
// it has to be done in case the post data is being reused multiple
// times.
nsCOMPtr<nsIRandomAccessStore> postDataRandomAccess(do_QueryInterface(aPostData));
if (postDataRandomAccess)
{
postDataRandomAccess->Seek(PR_SEEK_SET, 0);
}
nsCOMPtr<nsIAtom> method = NS_NewAtom ("POST");
httpChannel->SetRequestMethod(method);
httpChannel->SetUploadStream(aPostData);
}
if (aHeadersData)
{
rv = AddHeadersToChannel(aHeadersData, httpChannel);
}
// Set the referrer explicitly
if(aReferrerURI) // Referrer is currenly only set for link clicks here.
httpChannel->SetReferrer(aReferrerURI,
nsIHTTPChannel::REFERRER_LINK_CLICK);
}
else
{
// iff we are dealing with a JS or a data url, we may need an inherited owner.
// This is either aOwner or the owner of the current document.
nsCOMPtr<nsISupports> owner = aOwner;
PRBool isJSOrData = PR_FALSE;
nsCOMPtr<nsIStreamIOChannel> ioChannel(do_QueryInterface(channel));
if(ioChannel) // Might be a javascript: URL load, need to set owner
{
nsXPIDLCString scheme;
aURI->GetScheme(getter_Copies(scheme));
isJSOrData = (PL_strcasecmp(scheme, jsSchemeName) == 0);
}
else
{ // Also set owner for data: URLs
nsCOMPtr<nsIDataChannel> dataChannel(do_QueryInterface(channel));
isJSOrData = (dataChannel != nsnull);
}
if (isJSOrData)
{
if (!owner) // If an owner was passed in, use it
{
// Otherwise, if the caller has allowed inheriting from the current document,
// or if we're being called from chrome (which has the system principal),
// then use the current document principal
if (!aInheritOwner)
{
// See if there's system or chrome JS code running
NS_WITH_SERVICE(nsIScriptSecurityManager, secMan, kSecurityManagerCID, &rv);
nsCOMPtr<nsIPrincipal> sysPrin;
if (NS_SUCCEEDED(rv))
rv = secMan->GetSystemPrincipal(getter_AddRefs(sysPrin)); // Just to compare, not to use!
nsCOMPtr<nsIPrincipal> subjectPrin;
if (NS_SUCCEEDED(rv))
rv = secMan->GetSubjectPrincipal(getter_AddRefs(subjectPrin));
if (NS_SUCCEEDED(rv) && (!subjectPrin || sysPrin.get() == subjectPrin.get()))
aInheritOwner = PR_TRUE;
}
if (aInheritOwner)
GetCurrentDocumentOwner(getter_AddRefs(owner));
}
channel->SetOwner(owner);
}
}
NS_ENSURE_SUCCESS(DoChannelLoad(channel, aLoadCmd, aWindowTarget, uriLoader), NS_ERROR_FAILURE);
return NS_OK;
}
static NS_METHOD AHTC_WriteFunc(nsIInputStream* in,
void* closure,
const char* fromRawSegment,
PRUint32 toOffset,
PRUint32 count,
PRUint32 *writeCount)
{
if (nsnull == writeCount || nsnull == closure ||
nsnull == fromRawSegment || nsCRT::strlen(fromRawSegment) < 1) {
return NS_BASE_STREAM_CLOSED;
}
*writeCount = 0;
char *headersBuf = *((char **)closure);
// pointer to where we should start copying bytes from rawSegment
char *pHeadersBuf = nsnull;
PRUint32 headersBufLen;
PRUint32 rawSegmentLen = nsCRT::strlen(fromRawSegment);
// if the buffer has no data yet
if (!headersBuf) {
headersBufLen = rawSegmentLen;
pHeadersBuf = headersBuf = (char *) nsMemory::Alloc(headersBufLen + 1);
if (!headersBuf) {
return NS_BASE_STREAM_WOULD_BLOCK;
}
nsCRT::memset(headersBuf, nsnull, headersBufLen + 1);
}
else {
// data has been read, reallocate
// store a pointer to the old full buffer
pHeadersBuf = headersBuf;
// create a new buffer
headersBufLen = nsCRT::strlen(headersBuf);
headersBuf = (char *) nsMemory::Alloc(rawSegmentLen+headersBufLen + 1);
if (!headersBuf) {
headersBuf = pHeadersBuf;
pHeadersBuf = nsnull;
return NS_BASE_STREAM_WOULD_BLOCK;
}
memset(headersBuf, nsnull, rawSegmentLen + headersBufLen + 1);
// copy the old buffer to the beginning of the new buffer
nsCRT::memcpy(headersBuf, pHeadersBuf, headersBufLen);
// free the old buffer
nsCRT::free(pHeadersBuf);
// make the buffer pointer point to the writeable part
// of the new buffer
pHeadersBuf = headersBuf + headersBufLen;
// increment the length of the buffer
headersBufLen += rawSegmentLen;
}
// at this point, pHeadersBuf points to where we should copy bits
// from fromRawSegment.
nsCRT::memcpy(pHeadersBuf, fromRawSegment, rawSegmentLen);
// null termination
headersBuf[headersBufLen] = nsnull;
*((char **)closure) = headersBuf;
*writeCount = rawSegmentLen;
return NS_OK;
}
NS_IMETHODIMP nsDocShell::AddHeadersToChannel(nsIInputStream *aHeadersData,
nsIChannel *aGenericChannel)
{
if (nsnull == aHeadersData || nsnull == aGenericChannel) {
return NS_ERROR_NULL_POINTER;
}
nsCOMPtr<nsIHTTPChannel> aChannel = do_QueryInterface(aGenericChannel);
if (!aChannel) {
return NS_ERROR_NULL_POINTER;
}
// used during the manipulation of the InputStream
nsresult rv = NS_ERROR_FAILURE;
PRUint32 available = 0;
PRUint32 bytesRead;
char *headersBuf = nsnull;
// used during the manipulation of the String from the InputStream
nsCAutoString headersString;
nsCAutoString oneHeader;
nsCAutoString headerName;
nsCAutoString headerValue;
PRUint32 crlf = 0;
PRUint32 colon = 0;
nsIAtom *headerAtom;
//
// Suck all the data out of the nsIInputStream into a char * buffer.
//
rv = aHeadersData->Available(&available);
if (NS_FAILED(rv) || available < 1) {
goto AHTC_CLEANUP;
}
do {
aHeadersData->ReadSegments(AHTC_WriteFunc, &headersBuf, available,
&bytesRead);
rv = aHeadersData->Available(&available);
if (NS_FAILED(rv)) {
goto AHTC_CLEANUP;
}
} while(0 < available);
//
// Turn the char * buffer into an nsString.
//
headersString = (const char *) headersBuf;
//
// Iterate over the nsString: for each "\r\n" delimeted chunk,
// add the value as a header to the nsIHTTPChannel
//
while (PR_TRUE) {
crlf = headersString.Find("\r\n", PR_TRUE);
if (-1 == crlf) {
rv = NS_OK;
goto AHTC_CLEANUP;
}
headersString.Mid(oneHeader, 0, crlf);
headersString.Cut(0, crlf + 2);
oneHeader.StripWhitespace();
colon = oneHeader.Find(":");
if (-1 == colon) {
rv = NS_ERROR_NULL_POINTER;
goto AHTC_CLEANUP;
}
oneHeader.Left(headerName, colon);
colon++;
oneHeader.Mid(headerValue, colon, oneHeader.Length() - colon);
headerAtom = NS_NewAtom((const char *) headerName);
if (!headerAtom) {
rv = NS_ERROR_NULL_POINTER;
goto AHTC_CLEANUP;
}
//
// FINALLY: we can set the header!
//
rv =aChannel->SetRequestHeader(headerAtom, (const char *) headerValue);
if (NS_FAILED(rv)) {
rv = NS_ERROR_NULL_POINTER;
goto AHTC_CLEANUP;
}
}
AHTC_CLEANUP:
nsMemory::Free((void *) headersBuf);
headersBuf = nsnull;
return rv;
}
NS_IMETHODIMP nsDocShell::DoChannelLoad(nsIChannel *aChannel, nsURILoadCommand aLoadCmd,
const char* aWindowTarget, nsIURILoader *aURILoader)
{
// Mark the channel as being a document URI...
nsLoadFlags loadAttribs = 0;
(void)aChannel->GetLoadAttributes(&loadAttribs);
loadAttribs |= nsIChannel::LOAD_DOCUMENT_URI;
switch ( mLoadType )
{
case LOAD_HISTORY:
loadAttribs |= nsIChannel::VALIDATE_NEVER;
break;
case LOAD_RELOAD_NORMAL:
loadAttribs |= nsIChannel::FORCE_VALIDATION;
break;
case LOAD_RELOAD_BYPASS_PROXY_AND_CACHE:
loadAttribs |= nsIChannel::FORCE_RELOAD;
break;
case LOAD_REFRESH:
loadAttribs |= nsIChannel::FORCE_RELOAD;
break;
case LOAD_NORMAL:
case LOAD_LINK:
// Set cache checking flags
if ( mPrefs )
{
PRInt32 prefSetting;
if ( NS_SUCCEEDED( mPrefs->GetIntPref( "browser.cache.check_doc_frequency" , &prefSetting) ) )
{
switch ( prefSetting )
{
case 0:
loadAttribs |= nsIChannel::VALIDATE_ONCE_PER_SESSION;
break;
case 1:
loadAttribs |= nsIChannel::VALIDATE_ALWAYS;
break;
case 2:
loadAttribs |= nsIChannel::VALIDATE_NEVER;
break;
}
}
}
break;
}
(void) aChannel->SetLoadAttributes(loadAttribs);
NS_ENSURE_SUCCESS(aURILoader->OpenURI(aChannel, aLoadCmd,
aWindowTarget, NS_STATIC_CAST(nsIDocShell*, this)), NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::ScrollIfAnchor(nsIURI* aURI, PRBool* aWasAnchor)
{
NS_ASSERTION(aURI, "null uri arg");
NS_ASSERTION(aWasAnchor, "null anchor arg");
if (aURI == nsnull || aWasAnchor == nsnull)
{
return NS_ERROR_FAILURE;
}
*aWasAnchor = PR_FALSE;
if (!mCurrentURI)
{
return NS_OK;
}
nsresult rv;
// NOTE: we assume URIs are absolute for comparison purposes
nsXPIDLCString currentSpec;
NS_ENSURE_SUCCESS(mCurrentURI->GetSpec(getter_Copies(currentSpec)), NS_ERROR_FAILURE);
nsXPIDLCString newSpec;
NS_ENSURE_SUCCESS(aURI->GetSpec(getter_Copies(newSpec)), NS_ERROR_FAILURE);
// Search for hash marks in the current URI and the new URI and
// take a copy of everything to the left of the hash for
// comparison.
const char kHash = '#';
// Split the new URI into a left and right part
nsAutoString sNew; sNew.AssignWithConversion(newSpec);
nsAutoString sNewLeft;
nsAutoString sNewRef;
PRInt32 hashNew = sNew.FindChar(kHash);
if (hashNew == 0)
{
return NS_OK; // Strange URI
}
else if (hashNew > 0)
{
sNew.Left(sNewLeft, hashNew);
sNew.Right(sNewRef, sNew.Length() - hashNew - 1);
}
else
{
sNewLeft = sNew;
}
// Split the current URI in a left and right part
nsAutoString sCurrent; sCurrent.AssignWithConversion(currentSpec);
nsAutoString sCurrentLeft;
PRInt32 hashCurrent = sCurrent.FindChar(kHash);
if (hashCurrent == 0)
{
return NS_OK; // Strange URI
}
else if (hashCurrent > 0)
{
sCurrent.Left(sCurrentLeft, hashCurrent);
}
else
{
sCurrentLeft = sCurrent;
}
// Exit when there are no anchors
if (hashNew <= 0 && hashCurrent <= 0)
{
return NS_OK;
}
// Compare the URIs.
//
// NOTE: this is a case sensitive comparison because some parts of the
// URI are case sensitive, and some are not. i.e. the domain name
// is case insensitive but the the paths are not.
//
// This means that comparing "http://www.ABC.com/" to "http://www.abc.com/"
// will fail this test.
if (sCurrentLeft.CompareWithConversion(sNewLeft, PR_FALSE, -1) != 0)
{
return NS_OK; // URIs not the same
}
// Both the new and current URIs refer to the same page. We can now
// browse to the hash stored in the new URI.
if (!sNewRef.IsEmpty())
{
nsCOMPtr<nsIPresShell> shell = nsnull;
rv = GetPresShell(getter_AddRefs(shell));
if (NS_SUCCEEDED(rv) && shell)
{
*aWasAnchor = PR_TRUE;
char *str = sNewRef.ToNewCString();
// nsUnescape modifies the string that is passed into it.
nsUnescape(str);
sNewRef.AssignWithConversion(str);
nsMemory::Free(str);
rv = shell->GoToAnchor(sNewRef);
}
}
else
{
// A bit of a hack - scroll to the top of the page.
SetCurScrollPosEx(0, 0);
*aWasAnchor = PR_TRUE;
}
return NS_OK;
}
NS_IMETHODIMP
nsDocShell::OnNewURI(nsIURI *aURI, nsIChannel *aChannel, PRUint32 aLoadType)
{
NS_ASSERTION(aURI, "uri is null");
UpdateCurrentGlobalHistory();
PRBool updateHistory = PR_TRUE;
// Determine if this type of load should update history
if (aLoadType & LOAD_FLAGS_BYPASS_HISTORY ||
aLoadType & LOAD_CMD_RELOAD || aLoadType & LOAD_CMD_HISTORY)
{
updateHistory = PR_FALSE;
}
if (updateHistory) { // Page load not from SH
// Update session history if necessary...
if (!LSHE && (mItemType == typeContent) && mURIResultedInDocument) {
/* This is a fresh page getting loaded for the first time
*.Create a Entry for it and add it to SH, if this is the
* rootDocShell
*/
(void) AddToSessionHistory(aURI, aChannel, getter_AddRefs(LSHE));
}
// Update Global history if necessary...
updateHistory = PR_FALSE;
ShouldAddToGlobalHistory(aURI, &updateHistory);
if(updateHistory) {
AddToGlobalHistory(aURI);
}
}
SetCurrentURI(aURI);
nsCOMPtr<nsIHTTPChannel> httpChannel(do_QueryInterface(aChannel));
if(httpChannel)
{
nsCOMPtr<nsIURI> referrer;
httpChannel->GetReferrer(getter_AddRefs(referrer));
SetReferrerURI(referrer);
nsXPIDLCString refreshHeader;
nsCOMPtr<nsIAtom> refreshAtom ( dont_AddRef( NS_NewAtom("refresh") ) );
httpChannel -> GetResponseHeader (refreshAtom, getter_Copies (refreshHeader));
if (refreshHeader)
{
nsCOMPtr<nsIURI> baseURI = mCurrentURI;
PRInt32 millis = -1;
nsAutoString uriAttrib;
nsString result; result.AssignWithConversion (refreshHeader);
PRInt32 semiColon = result.FindCharInSet(";,");
nsAutoString token;
if (semiColon > -1)
result.Left(token, semiColon);
else
token = result;
PRBool done = PR_FALSE;
while (!done && !token.IsEmpty()) {
token.CompressWhitespace();
if (millis == -1 && nsCRT::IsAsciiDigit(token.First())) {
PRInt32 i = 0;
PRUnichar value = nsnull;
for ( ; i < (PRInt32) token.Length (); i++)
{
value = token[i];
if (!nsCRT::IsAsciiDigit(value)) {
i = -1;
break;
}
}
if (i > -1) {
PRInt32 err;
millis = token.ToInteger(&err) * 1000;
} else {
done = PR_TRUE;
}
} else {
done = PR_TRUE;
}
if (done) {
PRInt32 loc = token.FindChar('=');
if (loc > -1)
token.Cut(0, loc+1);
token.Trim(" \"'");
uriAttrib = token;
} else {
// Increment to the next token.
if (semiColon > -1) {
semiColon++;
PRInt32 semiColon2 = result.FindCharInSet(";,", semiColon);
if (semiColon2 == -1) semiColon2 = result.Length();
result.Mid(token, semiColon, semiColon2 - semiColon);
semiColon = semiColon2;
} else {
done = PR_TRUE;
}
}
} // end while
nsCOMPtr<nsIURI> uri;
if (!uriAttrib.Length()) {
uri = baseURI;
} else {
NS_NewURI(getter_AddRefs(uri), uriAttrib, baseURI);
}
RefreshURI (uri, millis, PR_FALSE);
}
}
mInitialPageLoad = PR_FALSE;
return NS_OK;
}
NS_IMETHODIMP nsDocShell::OnLoadingSite(nsIChannel* aChannel)
{
nsCOMPtr<nsIURI> uri;
// If this a redirect, use the final url (uri)
// else use the original url
//
// The better way would be to trust the OnRedirect() that necko gives us.
// But this notification happen after the necko notification and hence
// overrides it. Until OnRedirect() gets settles out, let us do this.
nsLoadFlags loadFlags = 0;
aChannel->GetLoadAttributes(&loadFlags);
if (loadFlags & nsIChannel::LOAD_REPLACE)
aChannel->GetURI(getter_AddRefs(uri));
else
aChannel->GetOriginalURI(getter_AddRefs(uri));
NS_ENSURE_TRUE(uri, NS_ERROR_FAILURE);
OnNewURI(uri, aChannel, mLoadType);
return NS_OK;
}
void nsDocShell::SetCurrentURI(nsIURI* aURI)
{
mCurrentURI = aURI; //This assignment addrefs
nsCOMPtr<nsIDocumentLoader> loader(do_GetInterface(mLoadCookie));
NS_ASSERTION(loader, "No document loader");
if (loader) {
loader->FireOnLocationChange(nsnull, nsnull, aURI);
}
}
void nsDocShell::SetReferrerURI(nsIURI* aURI)
{
mReferrerURI = aURI; // This assigment addrefs
}
//*****************************************************************************
// nsDocShell: Session History
//*****************************************************************************
PRBool nsDocShell::ShouldAddToSessionHistory(nsIURI* aURI)
{
nsresult rv;
nsXPIDLCString buffer;
nsCAutoString schemeStr;
rv = aURI->GetScheme(getter_Copies(buffer));
if (NS_FAILED(rv)) return PR_FALSE;
schemeStr = buffer;
if(schemeStr.Equals("about")) {
rv = aURI->GetPath(getter_Copies(buffer));
if (NS_FAILED(rv)) return PR_FALSE;
schemeStr = buffer;
if(schemeStr.Equals("blank")) {
return PR_FALSE;
}
}
return PR_TRUE;
}
nsresult nsDocShell::AddToSessionHistory(nsIURI *aURI,
nsIChannel *aChannel,
nsISHEntry **aNewEntry)
{
nsresult rv = NS_OK;
nsCOMPtr<nsISHEntry> entry;
PRBool shouldPersist;
shouldPersist = ShouldAddToSessionHistory(aURI);
//
// If the entry is being replaced in SH, then just use the
// current entry...
//
if(mSessionHistory && LOAD_NORMAL_REPLACE == mLoadType) {
PRInt32 index = 0;
mSessionHistory->GetIndex(&index);
mSessionHistory->GetEntryAtIndex(index, PR_FALSE, getter_AddRefs(entry));
}
// Create a new entry if necessary.
if(!entry) {
entry = do_CreateInstance(NS_SHENTRY_CONTRACTID);
if (!entry) {
return NS_ERROR_OUT_OF_MEMORY;
}
}
// Get the post data
nsCOMPtr<nsIInputStream> inputStream;
if (aChannel) {
nsCOMPtr<nsIHTTPChannel> httpChannel(do_QueryInterface(aChannel));
if(httpChannel) {
httpChannel->GetUploadStream(getter_AddRefs(inputStream));
}
}
//Title is set in nsDocShell::SetTitle()
entry->Create(aURI, // uri
nsnull, // Title
nsnull, // DOMDocument
inputStream, // Post data stream
nsnull); // LayoutHistory state
// If no Session History component is available in the parent DocShell
// heirarchy, then AddChildSHEntry(...) will fail and the new entry
// will be deleted when it loses scope...
//
if (mLoadType != LOAD_NORMAL_REPLACE) {
if (mSessionHistory)
rv = mSessionHistory->AddEntry(entry, shouldPersist);
else
rv = AddChildSHEntry(nsnull, entry, mChildOffset);
}
// Return the new SH entry...
if (aNewEntry) {
*aNewEntry = nsnull;
if (NS_SUCCEEDED(rv)) {
*aNewEntry = entry;
NS_ADDREF(*aNewEntry);
}
}
return rv;
}
/*
* Save the HistoryLayoutState for this page before we leave it.
*/
NS_IMETHODIMP nsDocShell::UpdateCurrentSessionHistory()
{
nsresult rv = NS_OK;
if(!mInitialPageLoad && mSessionHistory) {
PRInt32 index = 0;
mSessionHistory->GetIndex(&index);
if (-1 < index) {
nsCOMPtr<nsISHEntry> entry;
rv = mSessionHistory->GetEntryAtIndex(index, PR_FALSE, getter_AddRefs(entry));
if (NS_SUCCEEDED(rv) && entry) {
nsCOMPtr<nsIPresShell> shell;
rv = GetPresShell(getter_AddRefs(shell));
if (NS_SUCCEEDED(rv) && shell) {
nsCOMPtr<nsILayoutHistoryState> layoutState;
rv = shell->CaptureHistoryState(getter_AddRefs(layoutState), PR_TRUE);
if (NS_SUCCEEDED(rv) && layoutState) {
rv = entry->SetLayoutHistoryState(layoutState);
}
}
}
}
}
return rv;
}
#ifdef SH_IN_FRAMES
NS_IMETHODIMP nsDocShell::LoadHistoryEntry(nsISHEntry* aEntry, PRUint32 aLoadType)
#else
NS_IMETHODIMP nsDocShell::LoadHistoryEntry(nsISHEntry* aEntry)
#endif
{
nsCOMPtr<nsIURI> uri;
nsCOMPtr<nsIInputStream> postData;
PRBool repost = PR_TRUE;
NS_ENSURE_TRUE(aEntry, NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(aEntry->GetURI(getter_AddRefs(uri)), NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(aEntry->GetPostData(getter_AddRefs(postData)),
NS_ERROR_FAILURE);
/* Ask whether to repost form post data */
if (postData) {
nsCOMPtr<nsIPrompt> prompter;
nsCOMPtr<nsIStringBundle> stringBundle;
GetPromptAndStringBundle(getter_AddRefs(prompter),
getter_AddRefs(stringBundle));
if (stringBundle && prompter) {
nsXPIDLString messageStr;
nsresult rv = stringBundle->GetStringFromName(NS_ConvertASCIItoUCS2("repost").GetUnicode(),
getter_Copies(messageStr));
if (NS_SUCCEEDED(rv) && messageStr) {
prompter->Confirm(nsnull, messageStr, &repost);
if (!repost)
postData = nsnull;
}
}
}
#ifdef SH_IN_FRAMES
NS_ENSURE_SUCCESS(InternalLoad(uri, nsnull, nsnull, PR_TRUE, PR_FALSE, nsnull,
postData, nsnull, aLoadType, aEntry),
NS_ERROR_FAILURE);
#else
NS_ENSURE_SUCCESS(InternalLoad(uri, nsnull, nsnull, nsnull, PR_TRUE, PR_FALSE,
postData, nsnull,
LOAD_HISTORY),
NS_ERROR_FAILURE);
#endif
return NS_OK;
}
/*
NS_IMETHODIMP
nsDocShell::GetSHEForChild(PRInt32 aChildOffset, nsISHEntry ** aResult)
{
if (OSHE) {
nsCOMPtr<nsISHContainer> container(do_QueryInterface(OSHE));
if (container)
return container->GetChildAt(aChildOffset, aResult);
}
return NS_ERROR_FAILURE;
}
*/
NS_IMETHODIMP
nsDocShell::PersistLayoutHistoryState()
{
nsresult rv = NS_OK;
if (OSHE) {
nsCOMPtr<nsIPresShell> shell;
rv = GetPresShell(getter_AddRefs(shell));
if (NS_SUCCEEDED(rv) && shell) {
nsCOMPtr<nsILayoutHistoryState> layoutState;
rv = shell->CaptureHistoryState(getter_AddRefs(layoutState), PR_TRUE);
if (NS_SUCCEEDED(rv) && layoutState) {
rv = OSHE->SetLayoutHistoryState(layoutState);
}
}
}
return rv;
}
#if 0
NS_IMETHODIMP
nsDocShell::CloneAndReplace(nsISHEntry * src, nsISHEntry * cloneRef,
nsISHEntry * replaceEntry, nsISHEntry * dest)
{
nsresult result;
if (!src || !replaceEntry || !cloneRef || !dest)
return NS_ERROR_FAILURE;
// NS_ENSURE_ARG_POINTER(dest, NS_ERROR_FAILURE);
// static PRBool firstTime = PR_TRUE;
// static nsISHEntry * rootSHEntry = nsnull;
if (src == cloneRef) {
// release the original object before assigning a new one.
NS_RELEASE(dest);
dest = replaceEntry;
}
else {
nsCOMPtr<nsIURI> uri;
nsCOMPtr<nsIInputStream> postdata;
nsCOMPtr<nsILayoutHistoryState> LHS;
PRUnichar * title=nsnull;
nsCOMPtr<nsISHEntry> parent;
src->GetURI(getter_AddRefs(uri));
src->GetPostData(getter_AddRefs(postdata));
src->GetTitle(&title);
src->GetLayoutHistoryState(getter_AddRefs(LHS));
//XXX Is this correct? parent is a weak ref in nsISHEntry
src->GetParent(getter_AddRefs(parent));
// XXX do we care much about valid values for these uri, title etc....
dest->SetURI(uri);
dest->SetPostData(postdata);
dest->SetLayoutHistoryState(LHS);
dest->SetTitle(title);
dest->SetParent(parent);
}
/*
if (firstTime) {
// Save the root of the hierarchy in the result parameter
rootSHEntry = dest;
firstTime = PR_FALSE;
}
*/
PRInt32 childCount= 0;
nsCOMPtr<nsISHContainer> srcContainer(do_QueryInterface(src));
if (!srcContainer)
return NS_ERROR_FAILURE;
nsCOMPtr<nsISHContainer> destContainer(do_QueryInterface(dest));
if (!destContainer)
return NS_ERROR_FAILURE;
srcContainer->GetChildCount(&childCount);
for(PRInt32 i = 0; i<childCount; i++) {
nsCOMPtr<nsISHEntry> srcChild;
srcContainer->GetChildAt(i, getter_AddRefs(srcChild));
if (!srcChild)
return NS_ERROR_FAILURE;
nsCOMPtr<nsISHEntry> destChild(do_CreateInstance(NS_SHENTRY_CONTRACTID));
if (!NS_SUCCEEDED(result))
return result;
result = CloneAndReplace(srcChild, cloneRef, replaceEntry, destChild);
if (!NS_SUCCEEDED(result))
return result;
result = destContainer->AddChild(destChild, i);
if (!NS_SUCCEEDED(result))
return result;
}
return result;
}
#else
NS_IMETHODIMP
nsDocShell::CloneAndReplace(nsISHEntry * src, nsISHEntry * cloneRef,
nsISHEntry * replaceEntry, nsISHEntry ** resultEntry)
{
nsresult result = NS_OK;
NS_ENSURE_ARG_POINTER(resultEntry);
if (!src || !replaceEntry || !cloneRef)
return NS_ERROR_FAILURE;
// NS_ENSURE_ARG_POINTER(dest, NS_ERROR_FAILURE);
// static PRBool firstTime = PR_TRUE;
// static nsISHEntry * rootSHEntry = nsnull;
nsISHEntry * dest = *resultEntry;
dest = (nsISHEntry *) nsnull;
if (src == cloneRef) {
// release the original object before assigning a new one.
//NS_RELEASE(dest);
dest = replaceEntry;
*resultEntry = dest;
NS_IF_ADDREF(*resultEntry);
}
else {
nsCOMPtr<nsIURI> uri;
nsCOMPtr<nsIInputStream> postdata;
nsCOMPtr<nsILayoutHistoryState> LHS;
PRUnichar * title=nsnull;
nsCOMPtr<nsISHEntry> parent;
result = nsComponentManager::CreateInstance(NS_SHENTRY_CONTRACTID, NULL,
NS_GET_IID(nsISHEntry), (void **) &dest);
if (!NS_SUCCEEDED(result))
return result;
src->GetURI(getter_AddRefs(uri));
src->GetPostData(getter_AddRefs(postdata));
src->GetTitle(&title);
src->GetLayoutHistoryState(getter_AddRefs(LHS));
//XXX Is this correct? parent is a weak ref in nsISHEntry
src->GetParent(getter_AddRefs(parent));
// XXX do we care much about valid values for these uri, title etc....
dest->SetURI(uri);
dest->SetPostData(postdata);
dest->SetLayoutHistoryState(LHS);
dest->SetTitle(title);
dest->SetParent(parent);
*resultEntry = dest;
}
*resultEntry = dest;
/*
if (firstTime) {
// Save the root of the hierarchy in the result parameter
rootSHEntry = dest;
firstTime = PR_FALSE;
}
*/
PRInt32 childCount= 0;
nsCOMPtr<nsISHContainer> srcContainer(do_QueryInterface(src));
if (!srcContainer)
return NS_ERROR_FAILURE;
nsCOMPtr<nsISHContainer> destContainer(do_QueryInterface(dest));
if (!destContainer)
return NS_ERROR_FAILURE;
srcContainer->GetChildCount(&childCount);
for(PRInt32 i = 0; i<childCount; i++) {
nsCOMPtr<nsISHEntry> srcChild;
srcContainer->GetChildAt(i, getter_AddRefs(srcChild));
if (!srcChild)
return NS_ERROR_FAILURE;
nsCOMPtr<nsISHEntry> destChild;
if (!NS_SUCCEEDED(result))
return result;
result = CloneAndReplace(srcChild, cloneRef, replaceEntry, getter_AddRefs(destChild));
if (!NS_SUCCEEDED(result))
return result;
result = destContainer->AddChild(destChild, i);
if (!NS_SUCCEEDED(result))
return result;
}
return result;
}
#endif /* 0 */
//*****************************************************************************
// nsDocShell: Global History
//*****************************************************************************
NS_IMETHODIMP nsDocShell::ShouldAddToGlobalHistory(nsIURI* aURI, PRBool* aShouldAdd)
{
*aShouldAdd = PR_FALSE;
if(!mGlobalHistory || !aURI || (typeContent != mItemType))
return NS_OK;
nsXPIDLCString scheme;
NS_ENSURE_SUCCESS(aURI->GetScheme(getter_Copies(scheme)), NS_ERROR_FAILURE);
nsAutoString schemeStr; schemeStr.AssignWithConversion(scheme);
// The model is really if we don't know differently then add which basically
// means we are suppose to try all the things we know not to allow in and
// then if we don't bail go on and allow it in. But here lets compare
// against the most common case we know to allow in and go on and say yes
// to it.
if(schemeStr.EqualsWithConversion("http") || schemeStr.EqualsWithConversion("https"))
{
*aShouldAdd = PR_TRUE;
return NS_OK;
}
if(schemeStr.EqualsWithConversion("about") || schemeStr.EqualsWithConversion("imap") ||
schemeStr.EqualsWithConversion("news") || schemeStr.EqualsWithConversion("mailbox"))
return NS_OK;
*aShouldAdd = PR_TRUE;
return NS_OK;
}
NS_IMETHODIMP nsDocShell::AddToGlobalHistory(nsIURI* aURI)
{
NS_ENSURE_STATE(mGlobalHistory);
nsXPIDLCString spec;
NS_ENSURE_SUCCESS(aURI->GetSpec(getter_Copies(spec)), NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(mGlobalHistory->AddPage(spec, nsnull, PR_Now()),
NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::UpdateCurrentGlobalHistory()
{
// XXX Add code here that needs to update the current history item
return NS_OK;
}
//*****************************************************************************
// nsDocShell: Helper Routines
//*****************************************************************************
nsresult nsDocShell::SetLoadCookie(nsISupports *aCookie)
{
// Remove the DocShell as a listener of the old WebProgress...
if (mLoadCookie) {
nsCOMPtr<nsIWebProgress> webProgress(do_QueryInterface(mLoadCookie));
if (webProgress) {
webProgress->RemoveProgressListener(this);
}
}
mLoadCookie = aCookie;
// Add the DocShell as a listener to the new WebProgress...
if (mLoadCookie) {
nsCOMPtr<nsIWebProgress> webProgress(do_QueryInterface(mLoadCookie));
if (webProgress) {
webProgress->AddProgressListener(this);
}
}
return NS_OK;
}
nsresult nsDocShell::GetLoadCookie(nsISupports **aResult)
{
*aResult = mLoadCookie;
NS_IF_ADDREF(*aResult);
return NS_OK;
}
nsresult nsDocShell::SetLoadType(PRUint32 aLoadType)
{
mLoadType = aLoadType;
return NS_OK;
}
nsDocShellInitInfo* nsDocShell::InitInfo()
{
if(mInitInfo)
return mInitInfo;
return mInitInfo = new nsDocShellInitInfo();
}
#define DIALOG_STRING_URI "chrome://global/locale/appstrings.properties"
NS_IMETHODIMP nsDocShell::GetPromptAndStringBundle(nsIPrompt** aPrompt,
nsIStringBundle** aStringBundle)
{
NS_ENSURE_SUCCESS(GetInterface(NS_GET_IID(nsIPrompt), (void**)aPrompt), NS_ERROR_FAILURE);
nsCOMPtr<nsILocaleService> localeService(do_GetService(NS_LOCALESERVICE_CONTRACTID));
NS_ENSURE_TRUE(localeService, NS_ERROR_FAILURE);
nsCOMPtr<nsILocale> locale;
localeService->GetSystemLocale(getter_AddRefs(locale));
NS_ENSURE_TRUE(locale, NS_ERROR_FAILURE);
nsCOMPtr<nsIStringBundleService> stringBundleService(do_GetService(NS_STRINGBUNDLE_CONTRACTID));
NS_ENSURE_TRUE(stringBundleService, NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(stringBundleService->CreateBundle(DIALOG_STRING_URI, locale,
getter_AddRefs(aStringBundle)), NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetChildOffset(nsIDOMNode *aChild, nsIDOMNode* aParent,
PRInt32* aOffset)
{
NS_ENSURE_ARG_POINTER(aChild || aParent);
nsCOMPtr<nsIDOMNodeList> childNodes;
NS_ENSURE_SUCCESS(aParent->GetChildNodes(getter_AddRefs(childNodes)),
NS_ERROR_FAILURE);
NS_ENSURE_TRUE(childNodes, NS_ERROR_FAILURE);
PRInt32 i=0;
for( ; PR_TRUE; i++)
{
nsCOMPtr<nsIDOMNode> childNode;
NS_ENSURE_SUCCESS(childNodes->Item(i, getter_AddRefs(childNode)),
NS_ERROR_FAILURE);
NS_ENSURE_TRUE(childNode, NS_ERROR_FAILURE);
if(childNode.get() == aChild)
{
*aOffset = i;
return NS_OK;
}
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP nsDocShell::GetRootScrollableView(nsIScrollableView** aOutScrollView)
{
NS_ENSURE_ARG_POINTER(aOutScrollView);
nsCOMPtr<nsIPresShell> shell;
NS_ENSURE_SUCCESS(GetPresShell(getter_AddRefs(shell)), NS_ERROR_FAILURE);
nsCOMPtr<nsIViewManager> viewManager;
NS_ENSURE_SUCCESS(shell->GetViewManager(getter_AddRefs(viewManager)),
NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(viewManager->GetRootScrollableView(aOutScrollView),
NS_ERROR_FAILURE);
if (*aOutScrollView == nsnull)
{
return NS_ERROR_FAILURE;
}
return NS_OK;
}
NS_IMETHODIMP nsDocShell::EnsureContentListener()
{
if(mContentListener)
return NS_OK;
mContentListener = new nsDSURIContentListener();
NS_ENSURE_TRUE(mContentListener, NS_ERROR_OUT_OF_MEMORY);
NS_ADDREF(mContentListener);
mContentListener->DocShell(this);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::EnsureScriptEnvironment()
{
if(mScriptContext)
return NS_OK;
NS_NewScriptGlobalObject(getter_AddRefs(mScriptGlobal));
NS_ENSURE_TRUE(mScriptGlobal, NS_ERROR_FAILURE);
mScriptGlobal->SetDocShell(NS_STATIC_CAST(nsIDocShell*, this));
mScriptGlobal->SetGlobalObjectOwner(
NS_STATIC_CAST(nsIScriptGlobalObjectOwner*, this));
NS_CreateScriptContext(mScriptGlobal, getter_AddRefs(mScriptContext));
NS_ENSURE_TRUE(mScriptContext, NS_ERROR_FAILURE);
return NS_OK;
}
PRBool nsDocShell::IsFrame()
{
if(mParent)
{
PRInt32 parentType = ~mItemType; // Not us
mParent->GetItemType(&parentType);
if(parentType == mItemType) // This is a frame
return PR_TRUE;
}
return PR_FALSE;
}
//*****************************************************************************
//*** nsRefreshTimer: Object Management
//*****************************************************************************
nsRefreshTimer::nsRefreshTimer() : mRepeat(PR_FALSE), mDelay(0)
{
NS_INIT_REFCNT();
}
nsRefreshTimer::~nsRefreshTimer()
{
}
//*****************************************************************************
// nsRefreshTimer::nsISupports
//*****************************************************************************
NS_IMPL_THREADSAFE_ADDREF(nsRefreshTimer)
NS_IMPL_THREADSAFE_RELEASE(nsRefreshTimer)
NS_INTERFACE_MAP_BEGIN(nsRefreshTimer)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsITimerCallback)
NS_INTERFACE_MAP_ENTRY(nsITimerCallback)
NS_INTERFACE_MAP_END_THREADSAFE
///*****************************************************************************
// nsRefreshTimer::nsITimerCallback
//*****************************************************************************
NS_IMETHODIMP_(void) nsRefreshTimer::Notify(nsITimer *aTimer)
{
NS_ASSERTION(mDocShell, "DocShell is somehow null");
if(mDocShell)
{
nsCOMPtr<nsIDocShellLoadInfo> loadInfo;
mDocShell->CreateLoadInfo (getter_AddRefs (loadInfo));
loadInfo->SetLoadType(nsIDocShellLoadInfo::loadRefresh);
mDocShell->LoadURI(mURI, loadInfo, nsIWebNavigation::LOAD_FLAGS_NONE);
}
/*
* LoadURL(...) will cancel all refresh timers... This causes the Timer and
* its refreshData instance to be released...
*/
}
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