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gecko-dev/docshell/base/nsDocShell.cpp

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/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* 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 "nsDocShell.h"
#include "nsIComponentManager.h"
#include "nsIContent.h"
#include "nsIDocument.h"
#include "nsIDOMDocument.h"
#include "nsIDOMElement.h"
#include "nsIDocumentViewer.h"
#include "nsIDocumentLoaderFactory.h"
#include "nsIDeviceContext.h"
#include "nsCURILoader.h"
#include "nsLayoutCID.h"
#include "nsNetUtil.h"
#include "nsRect.h"
#include "prprf.h"
#include "nsIFrame.h"
#include "nsIMarkupDocumentViewer.h"
#include "nsXPIDLString.h"
#include "nsIChromeEventHandler.h"
#include "nsIDOMWindow.h"
#include "nsIWebBrowserChrome.h"
#ifdef XXX_NS_DEBUG // XXX: we'll need a logging facility for debugging
#define WEB_TRACE(_bit,_args) \
PR_BEGIN_MACRO \
if (WEB_LOG_TEST(gLogModule,_bit)) { \
PR_LogPrint _args; \
} \
PR_END_MACRO
#else
#define WEB_TRACE(_bit,_args)
#endif
//*****************************************************************************
//*** nsDocShell: Object Management
//*****************************************************************************
nsDocShell::nsDocShell() :
mContentListener(nsnull),
mInitInfo(nsnull),
mMarginWidth(0),
mMarginHeight(0),
mItemType(typeContent),
mParent(nsnull),
mTreeOwner(nsnull),
mChromeEventHandler(nsnull)
{
NS_INIT_REFCNT();
}
nsDocShell::~nsDocShell()
{
Destroy();
}
NS_IMETHODIMP nsDocShell::Create(nsISupports* aOuter, const nsIID& aIID,
void** ppv)
{
NS_ENSURE_ARG_POINTER(ppv);
NS_ENSURE_NO_AGGREGATION(aOuter);
nsDocShell* docShell = new nsDocShell();
NS_ENSURE_TRUE(docShell, NS_ERROR_OUT_OF_MEMORY);
NS_ADDREF(docShell);
nsresult rv = docShell->QueryInterface(aIID, ppv);
NS_RELEASE(docShell);
return rv;
}
//*****************************************************************************
// nsDocShell::nsISupports
//*****************************************************************************
NS_IMPL_ADDREF(nsDocShell)
NS_IMPL_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(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_END
///*****************************************************************************
// 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(nsIDOMWindow)) &&
NS_SUCCEEDED(EnsureScriptEnvironment()))
{
NS_ENSURE_SUCCESS(mScriptGlobal->QueryInterface(NS_GET_IID(nsIDOMWindow),
aSink), NS_ERROR_FAILURE);
return NS_OK;
}
else
return QueryInterface(aIID, aSink);
NS_IF_ADDREF(((nsISupports*)*aSink));
return NS_OK;
}
//*****************************************************************************
// nsDocShell::nsIDocShell
//*****************************************************************************
NS_IMETHODIMP nsDocShell::LoadURI(nsIURI* aUri,
nsIPresContext* presContext)
{
//NS_ENSURE_ARG(aUri); // Done in LoadURIVia for us.
return LoadURIVia(aUri, presContext, 0);
}
NS_IMETHODIMP nsDocShell::LoadURIVia(nsIURI* aUri,
nsIPresContext* aPresContext, PRUint32 aAdapterBinding)
{
NS_ENSURE_ARG(aUri);
// If Anchor, goto anchor
// Stop
// URI Load
nsCOMPtr<nsIURILoader> uriLoader = do_GetService(NS_URI_LOADER_PROGID);
NS_ENSURE_TRUE(uriLoader, NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(EnsureContentListener(), NS_ERROR_FAILURE);
mContentListener->SetPresContext(aPresContext);
// first, open a channel for the url
nsCOMPtr<nsIChannel> channel;
nsCOMPtr<nsIInterfaceRequestor> capabilities (do_QueryInterface(NS_STATIC_CAST(nsIDocShell *, this)));
// 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(nsISupports *, (nsIDocShell *) this), getter_AddRefs(loadGroup)),
NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(NS_OpenURI(getter_AddRefs(channel), aUri, loadGroup, capabilities), NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(uriLoader->OpenURIVia(channel, nsIURILoader::viewNormal, nsnull,
NS_STATIC_CAST(nsIDocShell*, this), aAdapterBinding), NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetCurrentURI(nsIURI** aURI)
{
NS_ENSURE_ARG_POINTER(aURI);
*aURI = mCurrentURI;
NS_IF_ADDREF(*aURI);
return NS_OK;
}
// SetDocument is only meaningful for doc shells that support DOM documents. Not all do.
NS_IMETHODIMP
nsDocShell::SetDocument(nsIDOMDocument *aDOMDoc, nsIDOMElement *aRootNode)
{
// The tricky part is bypassing the normal load process and just putting a document into
// the webshell. This is particularly nasty, since webshells don't normally even know
// about their documents
// (1) Create a document viewer
nsCOMPtr<nsIContentViewer> documentViewer;
nsCOMPtr<nsIDocumentLoaderFactory> docFactory;
static NS_DEFINE_CID(kLayoutDocumentLoaderFactoryCID, NS_LAYOUT_DOCUMENT_LOADER_FACTORY_CID);
NS_ENSURE_SUCCESS(nsComponentManager::CreateInstance(kLayoutDocumentLoaderFactoryCID, nsnull,
NS_GET_IID(nsIDocumentLoaderFactory),
(void**)getter_AddRefs(docFactory)),
NS_ERROR_FAILURE);
nsCOMPtr<nsIDocument> doc = do_QueryInterface(aDOMDoc);
NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(docFactory->CreateInstanceForDocument(NS_STATIC_CAST(nsIContentViewerContainer*, this),
doc,
"view",
getter_AddRefs(documentViewer)),
NS_ERROR_FAILURE);
// (2) Feed the docshell to the content viewer
NS_ENSURE_SUCCESS(documentViewer->SetContainer((nsIDocShell*)this),
NS_ERROR_FAILURE);
// (3) Tell the content viewer container to embed the content viewer.
// (This step causes everything to be set up for an initial flow.)
NS_ENSURE_SUCCESS(Embed(documentViewer, "view", nsnull), NS_ERROR_FAILURE);
// XXX: It would be great to get rid of this dummy channel!
const nsAutoString uriString = "about:blank";
nsCOMPtr<nsIURI> uri;
NS_ENSURE_SUCCESS(NS_NewURI(getter_AddRefs(uri), uriString), NS_ERROR_FAILURE);
NS_ENSURE_TRUE(uri, NS_ERROR_OUT_OF_MEMORY);
nsCOMPtr<nsIChannel> dummyChannel;
NS_ENSURE_SUCCESS(NS_OpenURI(getter_AddRefs(dummyChannel), uri, nsnull), NS_ERROR_FAILURE);
// (4) fire start document load notification
nsCOMPtr<nsIStreamListener> outStreamListener;
NS_ENSURE_SUCCESS(doc->StartDocumentLoad("view", dummyChannel, nsnull,
NS_STATIC_CAST(nsIContentViewerContainer*, this),
getter_AddRefs(outStreamListener)), NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(FireStartDocumentLoad(mDocLoader, uri, "load"), NS_ERROR_FAILURE);
// (5) hook up the document and its content
nsCOMPtr<nsIContent> rootContent = do_QueryInterface(aRootNode);
NS_ENSURE_TRUE(doc, NS_ERROR_OUT_OF_MEMORY);
NS_ENSURE_SUCCESS(rootContent->SetDocument(doc, PR_FALSE), NS_ERROR_FAILURE);
doc->SetRootContent(rootContent);
// (6) reflow the document
//XXX: SetScrolling doesn't make any sense
//SetScrolling(-1, PR_FALSE);
PRInt32 i;
PRInt32 ns = doc->GetNumberOfShells();
for (i = 0; i < ns; i++)
{
nsCOMPtr<nsIPresShell> shell(dont_AddRef(doc->GetShellAt(i)));
if (shell)
{
// Make shell an observer for next time
NS_ENSURE_SUCCESS(shell->BeginObservingDocument(), NS_ERROR_FAILURE);
// Resize-reflow this time
nsCOMPtr<nsIDocumentViewer> docViewer = do_QueryInterface(documentViewer);
NS_ENSURE_TRUE(docViewer, NS_ERROR_OUT_OF_MEMORY);
nsCOMPtr<nsIPresContext> presContext;
NS_ENSURE_SUCCESS(docViewer->GetPresContext(*(getter_AddRefs(presContext))), NS_ERROR_FAILURE);
NS_ENSURE_TRUE(presContext, NS_ERROR_OUT_OF_MEMORY);
float p2t;
presContext->GetScaledPixelsToTwips(&p2t);
nsRect r;
NS_ENSURE_SUCCESS(GetPosition(&r.x, &r.y), NS_ERROR_FAILURE);;
NS_ENSURE_SUCCESS(GetSize(&r.width, &r.height), NS_ERROR_FAILURE);;
NS_ENSURE_SUCCESS(shell->InitialReflow(NSToCoordRound(r.width * p2t), NSToCoordRound(r.height * p2t)), NS_ERROR_FAILURE);
// Now trigger a refresh
nsCOMPtr<nsIViewManager> vm;
NS_ENSURE_SUCCESS(shell->GetViewManager(getter_AddRefs(vm)), NS_ERROR_FAILURE);
if (vm)
{
PRBool enabled;
documentViewer->GetEnableRendering(&enabled);
if (enabled) {
vm->EnableRefresh(NS_VMREFRESH_IMMEDIATE);
}
NS_ENSURE_SUCCESS(vm->SetWindowDimensions(NSToCoordRound(r.width * p2t),
NSToCoordRound(r.height * p2t)),
NS_ERROR_FAILURE);
}
}
}
// (7) fire end document load notification
nsresult rv = NS_OK;
NS_ENSURE_SUCCESS(FireEndDocumentLoad(mDocLoader, dummyChannel, rv), NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE); // test the resulting out-param separately
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetPresContext(nsIPresContext** aPresContext)
{
NS_ENSURE_ARG_POINTER(aPresContext);
*aPresContext = nsnull;
NS_ENSURE_TRUE(mContentViewer, NS_ERROR_FAILURE);
nsCOMPtr<nsIDocumentViewer> docv(do_QueryInterface(mContentViewer));
NS_ENSURE_TRUE(docv, NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(docv->GetPresContext(*aPresContext), NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetPresShell(nsIPresShell** aPresShell)
{
NS_ENSURE_ARG_POINTER(aPresShell);
*aPresShell = nsnull;
nsCOMPtr<nsIPresContext> presContext;
NS_ENSURE_SUCCESS(GetPresContext(getter_AddRefs(presContext)),
NS_ERROR_FAILURE);
if(!presContext)
return NS_OK;
NS_ENSURE_SUCCESS(presContext->GetShell(aPresShell), NS_ERROR_FAILURE);
return NS_OK;
}
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::GetPrefs(nsIPref** aPrefs)
{
NS_ENSURE_ARG_POINTER(aPrefs);
*aPrefs = mPrefs;
NS_IF_ADDREF(*aPrefs);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetPrefs(nsIPref* aPrefs)
{
// null aPrefs is ok
mPrefs = aPrefs; // this assignment does an addref
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetZoom(float* zoom)
{
NS_ENSURE_ARG_POINTER(zoom);
NS_ENSURE_STATE(mContentViewer);
nsCOMPtr<nsIPresContext> presContext;
NS_ENSURE_SUCCESS(GetPresContext(getter_AddRefs(presContext)),
NS_ERROR_FAILURE);
nsCOMPtr<nsIDeviceContext> deviceContext;
NS_ENSURE_SUCCESS(presContext->GetDeviceContext(getter_AddRefs(deviceContext)),
NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(deviceContext->GetZoom(*zoom), NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetZoom(float zoom)
{
NS_ENSURE_STATE(mContentViewer);
nsCOMPtr<nsIPresContext> presContext;
NS_ENSURE_SUCCESS(GetPresContext(getter_AddRefs(presContext)),
NS_ERROR_FAILURE);
nsCOMPtr<nsIDeviceContext> deviceContext;
NS_ENSURE_SUCCESS(presContext->GetDeviceContext(getter_AddRefs(deviceContext)),
NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(deviceContext->SetZoom(zoom), NS_ERROR_FAILURE);
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::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;
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.Equals(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, 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)
{
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;
}
//*****************************************************************************
// 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);
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);
}
}
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, 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);
child->GetName(getter_Copies(childName));
if(name.Equals(childName))
{
*_retval = child;
NS_ADDREF(*_retval);
break;
}
if(aRecurse && (aRequestor != child)) // Only ask the child if it isn't the requestor
{
PRInt32 childType;
child->GetItemType(&childType);
if(childType == mItemType) //Only ask it to check children if it is same type
{
// 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,
NS_STATIC_CAST(nsIDocShellTreeItem*, this), _retval),
NS_ERROR_FAILURE);
}
}
}
if(*_retval) // found it
return NS_OK;
}
return NS_OK;
}
//*****************************************************************************
// nsDocShell::nsIWebNavigation
//*****************************************************************************
NS_IMETHODIMP nsDocShell::GetCanGoBack(PRBool* aCanGoBack)
{
//XXX First Checkin
NS_ERROR("Not Yet Implemented");
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP nsDocShell::GetCanGoForward(PRBool* aCanGoForward)
{
//XXX First Checkin
NS_ERROR("Not Yet Implemented");
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP nsDocShell::GoBack()
{
//XXX First Checkin
NS_ERROR("Not Yet Implemented");
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP nsDocShell::GoForward()
{
//XXX First Checkin
NS_ERROR("Not Yet Implemented");
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP nsDocShell::LoadURI(const PRUnichar* aURI)
{
// Mangle URL
// If anchor goto Anchor
// Stop Current Loads
// URI Load
//XXX First Checkin
NS_ERROR("Not Yet Implemented");
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP nsDocShell::Reload()
{
//XXX First Checkin
NS_ERROR("Not Yet Implemented");
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP nsDocShell::Stop()
{
if(mContentViewer)
mContentViewer->Stop();
if(mContentListener->mLoadCookie)
{
nsCOMPtr<nsIURILoader> uriLoader = do_GetService(NS_URI_LOADER_PROGID);
if(uriLoader)
uriLoader->Stop(mContentListener->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);
nsCOMPtr<nsIPresShell> presShell;
NS_ENSURE_SUCCESS(GetPresShell(getter_AddRefs(presShell)), NS_ERROR_FAILURE);
nsCOMPtr<nsIDocument>doc;
NS_ENSURE_SUCCESS(presShell->GetDocument(getter_AddRefs(doc)), NS_ERROR_FAILURE);
NS_ENSURE_TRUE(doc, NS_ERROR_NULL_POINTER);
// the result's addref comes from this QueryInterface call
NS_ENSURE_SUCCESS(CallQueryInterface(doc.get(), aDocument), NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetCurrentURI(PRUnichar** aCurrentURI)
{
NS_ENSURE_ARG_POINTER(aCurrentURI);
if(!mCurrentURI)
{
*aCurrentURI = nsnull;
return NS_OK;
}
char* spec;
NS_ENSURE_SUCCESS(mCurrentURI->GetSpec(&spec), NS_ERROR_FAILURE);
nsAutoString strSpec(spec);
*aCurrentURI = strSpec.ToNewUnicode();
if(spec)
nsCRT::free(spec);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetSessionHistory(nsISHistory* aSessionHistory)
{
mSessionHistory = aSessionHistory;
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetSessionHistory(nsISHistory** aSessionHistory)
{
NS_ENSURE_ARG_POINTER(aSessionHistory);
*aSessionHistory = mSessionHistory;
NS_IF_ADDREF(*aSessionHistory);
return NS_OK;
}
//*****************************************************************************
// 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);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::Destroy()
{
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 cx, PRInt32 cy, PRBool fRepaint)
{
if(mContentViewer)
{
PRInt32 x;
PRInt32 y;
NS_ENSURE_SUCCESS(GetPosition(&x, &y), NS_ERROR_FAILURE);
//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->cx = cx;
mInitInfo->cy = cy;
}
else
NS_ENSURE_TRUE(PR_FALSE, NS_ERROR_FAILURE);
return NS_OK;
}
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)
{
//XXX First Check
/**
* Tell the window to repaint itself
* @param aForce - if true, repaint immediately
* if false, the window may defer repainting as it sees fit.
*/
/* XXX Implement Tell our view to repaint
if (mWindow) {
mWindow->Invalidate(aForce);
}
nsresult rv;
nsCOMPtr<nsIViewManager> viewManager;
rv = GetViewManager(getter_AddRefs(viewManager));
if (NS_FAILED(rv)) { return rv; }
if (!viewManager) { return NS_ERROR_NULL_POINTER; }
//XXX: what about aForce?
rv = viewManager->UpdateAllViews(0);
return rv;
*/
return NS_ERROR_FAILURE;
}
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** mainWidget)
{
NS_ENSURE_ARG_POINTER(mainWidget);
// For now we don't create our own widget, so simply return the parent one.
*mainWidget = mParentWidget;
NS_IF_ADDREF(*mainWidget);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetFocus()
{
//XXX First Check
/**
* Give the window focus.
*/
/* XXX implement
if (mWindow) {
mWindow->SetFocus();
}
return NS_OK;
*/
return NS_ERROR_FAILURE;
}
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)
return nextCallWin->FocusAvailable(aCurrentFocus, aTookFocus);
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(child.get() == aCurrentFocus)
{
while(++i < n)
{
child = do_QueryInterface((nsISupports*)mChildren.ElementAt(i));
if(NS_SUCCEEDED(child->SetFocus()))
{
*aTookFocus = PR_TRUE;
return NS_OK;
}
}
}
}
if(nextCallWin)
return nextCallWin->FocusAvailable(aCurrentFocus, aTookFocus);
return NS_OK;
}
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));
NS_ENSURE_TRUE(treeOwnerAsWin, NS_ERROR_FAILURE);
treeOwnerAsWin->SetTitle(aTitle);
}
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);
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);
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);
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);
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;
}
NS_IMETHODIMP nsDocShell::GetScrollbarPreferences(PRInt32 scrollOrientation,
PRInt32* scrollbarPref)
{
NS_ENSURE_ARG_POINTER(scrollbarPref);
nsCOMPtr<nsIScrollableView> scrollView;
NS_ENSURE_SUCCESS(GetRootScrollableView(getter_AddRefs(scrollView)),
NS_ERROR_FAILURE);
// XXX This is all evil, we need to convert. We don't know our prefs
// are the same as this interfaces.
/* nsScrollPreference scrollPref;
NS_ENSURE_SUCCESS(scrollView->GetScrollPreference(scrollPref),
NS_ERROR_FAILURE);
*scrollbarPref = scrollPref; */
return NS_OK;
}
NS_IMETHODIMP nsDocShell::SetScrollbarPreferences(PRInt32 scrollOrientation,
PRInt32 scrollbarPref)
{
nsCOMPtr<nsIScrollableView> scrollView;
NS_ENSURE_SUCCESS(GetRootScrollableView(getter_AddRefs(scrollView)),
NS_ERROR_FAILURE);
// XXX This is evil. We should do a mapping, we don't know our prefs
// are the same as this interface. In fact it doesn't compile
/* nsScrollPreference scrollPref = scrollbarPref;
NS_ENSURE_SUCCESS(scrollView->SetScrollPreference(scrollPref),
NS_ERROR_FAILURE); */
return NS_OK;
}
NS_IMETHODIMP nsDocShell::GetScrollbarVisibility(PRBool* verticalVisible,
PRBool* horizontalVisible)
{
nsCOMPtr<nsIScrollableView> scrollView;
NS_ENSURE_SUCCESS(GetRootScrollableView(getter_AddRefs(scrollView)),
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);
NS_ENSURE_SUCCESS(scrollView->ScrollByLines(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);
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(const char* aErrorString,
const char* aFileName, PRInt32 aLineNo, const char* aLineBuf)
{
//XXX Needs some international work.
nsAutoString error;
error.SetString("JavaScript Error: ");
error.Append(aErrorString);
error += "\n";
if(aFileName)
{
error += "URL: ";
error += aFileName;
error += "\n";
}
if(aLineNo)
{
error += "LineNo: ";
error.Append(aLineNo, 10);
error += "\n";
}
if(aLineBuf)
{
error += "Line text: '";
error += aLineBuf;
error += "'\n";
}
// XXX Should not do a printf
char* errorStr = error.ToNewCString();
if(errorStr)
{
printf("%s\n", errorStr);
nsCRT::free(errorStr);
}
//XXXEMBEDDING Call embedding app with the error.
// XXX Turn it off for now...there should be an Error method too
//Alert(error.GetUnicode());
return NS_OK;
}
//*****************************************************************************
// nsDocShell::nsIContentViewerContainer
//*****************************************************************************
NS_IMETHODIMP nsDocShell::Embed(nsIContentViewer* aContentViewer,
const char * aCommand,
nsISupports * aExtraInfo)
{
return SetupNewViewer(aContentViewer);
}
NS_IMETHODIMP nsDocShell::HandleUnknownContentType(nsIDocumentLoader* aLoader,
nsIChannel* channel,
const char *aContentType,
const char *aCommand)
{
NS_ENSURE_SUCCESS(PR_FALSE, NS_ERROR_NOT_IMPLEMENTED);
return NS_OK;
}
//*****************************************************************************
// nsDocShell: Helper Routines
//*****************************************************************************
nsDocShellInitInfo* nsDocShell::InitInfo()
{
if(mInitInfo)
return mInitInfo;
return mInitInfo = new nsDocShellInitInfo();
}
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);
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;
}
NS_IMETHODIMP nsDocShell::GetTarget(const PRUnichar* aName, nsIDocShellTreeItem** aShell)
{
nsAutoString name(aName);
if(!name.Length() || name.EqualsIgnoreCase("_self"))
{
*aShell = NS_STATIC_CAST(nsIDocShellTreeItem*, this);
}
else if(name.EqualsIgnoreCase("_blank"))
{
NS_ENSURE_SUCCESS(CreateTargetLocation(nsnull, aShell), NS_ERROR_FAILURE);
}
else if(name.EqualsIgnoreCase("_parent"))
{
GetSameTypeParent(aShell);
if(!*aShell)
*aShell = NS_STATIC_CAST(nsIDocShellTreeItem*, this);
}
else if(name.EqualsIgnoreCase("_top"))
{
NS_ENSURE_SUCCESS(GetSameTypeRootTreeItem(aShell), NS_ERROR_FAILURE);
}
else if(name.EqualsIgnoreCase("_content"))
{
if(mTreeOwner)
mTreeOwner->FindItemWithName(aName, nsnull, aShell);
else
{
NS_ERROR("Someone isn't setting up the tree owner. You might like to try that."
"Things will.....you know, work.");
}
}
else
{
NS_ENSURE_SUCCESS(FindItemWithName(aName, nsnull, aShell), NS_ERROR_FAILURE);
if(!*aShell)
{
NS_ENSURE_SUCCESS(CreateTargetLocation(aName, aShell), NS_ERROR_FAILURE);
}
}
NS_IF_ADDREF(*aShell);
return NS_OK;
}
NS_IMETHODIMP nsDocShell::CreateTargetLocation(const PRUnichar* aName,
nsIDocShellTreeItem** aShell)
{
return mTreeOwner->GetNewWindow(nsIWebBrowserChrome::allChrome, aShell);
}
void nsDocShell::SetCurrentURI(nsIURI* aUri)
{
mCurrentURI = aUri; //This assignment addrefs
}
NS_IMETHODIMP nsDocShell::EnsureContentViewer()
{
if(mContentViewer)
return NS_OK;
return CreateAboutBlankContentViewer();
}
NS_IMETHODIMP nsDocShell::CreateAboutBlankContentViewer()
{
// XXX
NS_ERROR("Not Implemented yet");
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP nsDocShell::CreateContentViewer(const char* aContentType,
nsURILoadCommand aCommand, nsIChannel* aOpenedChannel,
nsIStreamListener** aContentHandler)
{
//XXX We should return NS_ERROR_FAILURE if we can't create a new
// one and then leave our window in tact....
//XXXQ Can we check the content type of the current content viewer
// and reuse it without destroying it and re-creating it?
// XXXIMPL Do cleanup....
// Instantiate the content viewer object
NS_ENSURE_SUCCESS(NewContentViewerObj(aContentType, aCommand, aOpenedChannel,
aContentHandler), NS_ERROR_FAILURE);
//XXXIMPL Do stuff found in embed here. Don't call embed it is going away.
return NS_ERROR_FAILURE;
}
nsresult nsDocShell::NewContentViewerObj(const char* aContentType,
nsURILoadCommand aCommand, nsIChannel* aOpenedChannel,
nsIStreamListener** aContentHandler)
{
//XXX This should probably be some category thing....
char id[256];
PR_snprintf(id, sizeof(id), NS_DOCUMENT_LOADER_FACTORY_PROGID_PREFIX "%s/%s",
aCommand , aContentType);
// Create an instance of the document-loader-factory
nsCOMPtr<nsIDocumentLoaderFactory> docLoaderFactory(do_CreateInstance(id));
NS_ENSURE_TRUE(docLoaderFactory, NS_ERROR_FAILURE);
nsCOMPtr<nsILoadGroup> loadGroup(do_QueryInterface(mContentListener->mLoadCookie));
// Now create an instance of the content viewer
nsXPIDLCString strCommand;
// go to the uri loader and ask it to convert the uri load command into a old
// world style string
nsresult rv = NS_OK;
NS_WITH_SERVICE(nsIURILoader, pURILoader, NS_URI_LOADER_PROGID, &rv);
if (NS_SUCCEEDED(rv))
NS_ENSURE_SUCCESS(pURILoader->GetStringForCommand(aCommand, getter_Copies(strCommand)), NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(docLoaderFactory->CreateInstance(strCommand, aOpenedChannel,
loadGroup, aContentType, NS_STATIC_CAST(nsIContentViewerContainer*, this),
nsnull /*XXXQ Need ExtraInfo???*/,
aContentHandler, getter_AddRefs(mContentViewer)), NS_ERROR_FAILURE);
return rv;
}
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);
}
}
mContentViewer = nsnull;
// End copying block (Don't hold content/document viewer ref beyond here!!)
if(mScriptContext)
mScriptContext->GC();
mContentViewer = aNewViewer;
nsCOMPtr<nsIWidget> widget;
NS_ENSURE_SUCCESS(GetMainWidget(getter_AddRefs(widget)), NS_ERROR_FAILURE);
nsRect bounds(x, y, cx, cy);
/* if(NS_FAILED(mContentViewer->Init(widget->GetNativeData(NS_NATIVE_WIDGET),
mDeviceContext, mPrefs, bounds, nsScrollPreference_kAuto)))
{
mContentViewer = nsnull;
NS_ERROR("ContentViewer Initialization failed");
return NS_ERROR_FAILURE;
}
/*
XXXTAB Don't think we need this in new world
// If the history state has been set by session history,
// set it on the pres shell now that we have a content
// viewer.
if(mContentViewer && mHistoryState)
{
nsCOMPtr<nsIDocumentViewer> docv(do_QueryInterface(mContentViewer));
if(docv)
{
nsCOMPtr<nsIPresShell> shell;
docv->GetPresShell(*getter_AddRefs(shell));
if(shell)
shell->SetHistoryState(mHistoryState);
}
}
*/
NS_ERROR("Uncomment above");
mContentViewer->Show();
// Now that we have switched documents, forget all of our children
DestroyChildren();
return NS_OK;
}
NS_IMETHODIMP nsDocShell::StopCurrentLoads()
{
// XXX
NS_ERROR("Not Yet Implemented");
return NS_OK;
}
NS_IMETHODIMP nsDocShell::AddCurrentSiteToHistories()
{
// XXX
NS_ERROR("Not Yet Implemented");
return NS_OK;
}
NS_IMETHODIMP
nsDocShell::FireStartDocumentLoad(nsIDocumentLoader* aLoader,
nsIURI * aURL, //XXX: should be the channel?
const char * aCommand)
{
NS_ENSURE_ARG_POINTER(aLoader);
NS_ENSURE_ARG_POINTER(aURL);
NS_ENSURE_ARG_POINTER(aCommand);
nsCOMPtr<nsIDocumentViewer> docViewer;
if (mScriptGlobal && (aLoader == mDocLoader.get()))
{
docViewer = do_QueryInterface(mContentViewer);
if (docViewer)
{
nsCOMPtr<nsIPresContext> presContext;
NS_ENSURE_SUCCESS(docViewer->GetPresContext(*(getter_AddRefs(presContext))), NS_ERROR_FAILURE);
if (presContext)
{
nsEventStatus status = nsEventStatus_eIgnore;
nsMouseEvent event;
event.eventStructType = NS_EVENT;
event.message = NS_PAGE_UNLOAD;
NS_ENSURE_SUCCESS(mScriptGlobal->HandleDOMEvent(presContext,
&event,
nsnull,
NS_EVENT_FLAG_INIT,
&status),
NS_ERROR_FAILURE);
}
}
}
if (aLoader == mDocLoader.get())
{
nsCOMPtr<nsIDocumentLoaderObserver> dlObserver;
if (!mDocLoaderObserver && mParent)
{
/* If this is a frame (in which case it would have a parent && doesn't
* have a documentloaderObserver, get it from the rootWebShell
*/
nsCOMPtr<nsIDocShellTreeItem> rootTreeItem;
NS_ENSURE_SUCCESS(GetSameTypeRootTreeItem(getter_AddRefs(rootTreeItem)),
NS_ERROR_FAILURE);
nsCOMPtr<nsIDocShell> rootAsDocShell(do_QueryInterface(rootTreeItem));
if(rootAsDocShell)
NS_ENSURE_SUCCESS(rootAsDocShell->GetDocLoaderObserver(getter_AddRefs(dlObserver)),
NS_ERROR_FAILURE);
}
else
{
dlObserver = do_QueryInterface(mDocLoaderObserver); // we need this to addref
}
/*
* Fire the OnStartDocumentLoad of the webshell observer
*/
/* XXX This code means "notify dlObserver only if we're the top level webshell.
I don't know why that would be, can't subdocument have doc loader observers?
*/
if (/*(nsnull != mContainer) && */(nsnull != dlObserver))
{
NS_ENSURE_SUCCESS(dlObserver->OnStartDocumentLoad(mDocLoader, aURL, aCommand),
NS_ERROR_FAILURE);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDocShell::FireEndDocumentLoad(nsIDocumentLoader* aLoader,
nsIChannel * aChannel,
nsresult aStatus)
{
NS_ENSURE_ARG_POINTER(aLoader);
NS_ENSURE_ARG_POINTER(aChannel);
nsCOMPtr<nsIURI> aURL;
NS_ENSURE_SUCCESS(aChannel->GetURI(getter_AddRefs(aURL)), NS_ERROR_FAILURE);
if (aLoader == mDocLoader.get())
{
if (mScriptGlobal && mContentViewer)
{
nsCOMPtr<nsIDocumentViewer> docViewer;
docViewer = do_QueryInterface(mContentViewer);
if (docViewer)
{
nsCOMPtr<nsIPresContext> presContext;
NS_ENSURE_SUCCESS(docViewer->GetPresContext(*(getter_AddRefs(presContext))), NS_ERROR_FAILURE);
if (presContext)
{
nsEventStatus status = nsEventStatus_eIgnore;
nsMouseEvent event;
event.eventStructType = NS_EVENT;
event.message = NS_PAGE_LOAD;
NS_ENSURE_SUCCESS(mScriptGlobal->HandleDOMEvent(presContext,
&event,
nsnull,
NS_EVENT_FLAG_INIT,
&status),
NS_ERROR_FAILURE);
}
}
}
// Fire the EndLoadURL of the web shell container
/* XXX: what replaces mContainer?
if (nsnull != aURL)
{
nsAutoString urlString;
char* spec;
rv = aURL->GetSpec(&spec);
if (NS_SUCCEEDED(rv))
{
urlString = spec;
if (nsnull != mContainer) {
rv = mContainer->EndLoadURL(this, urlString.GetUnicode(), 0);
}
nsCRT::free(spec);
}
}
*/
nsCOMPtr<nsIDocumentLoaderObserver> dlObserver;
if (!mDocLoaderObserver && mParent)
{
// If this is a frame (in which case it would have a parent && doesn't
// have a documentloaderObserver, get it from the rootWebShell
nsCOMPtr<nsIDocShellTreeItem> rootTreeItem;
NS_ENSURE_SUCCESS(GetSameTypeRootTreeItem(getter_AddRefs(rootTreeItem)),
NS_ERROR_FAILURE);
nsCOMPtr<nsIDocShell> rootAsDocShell(do_QueryInterface(rootTreeItem));
if(rootAsDocShell)
NS_ENSURE_SUCCESS(rootAsDocShell->GetDocLoaderObserver(getter_AddRefs(dlObserver)),
NS_ERROR_FAILURE);
}
else
{
/* Take care of the Trailing slash situation */
/* XXX: session history stuff, should be taken care of external to the docshell
if (mSHist)
CheckForTrailingSlash(aURL);
*/
dlObserver = do_QueryInterface(mDocLoaderObserver); // we need this to addref
}
/*
* Fire the OnEndDocumentLoad of the DocLoaderobserver
*/
if (dlObserver && aURL) {
NS_ENSURE_SUCCESS(dlObserver->OnEndDocumentLoad(mDocLoader, aChannel, aStatus),
NS_ERROR_FAILURE);
}
/* put the new document in the doc tree */
NS_ENSURE_SUCCESS(InsertDocumentInDocTree(), NS_ERROR_FAILURE);
}
return NS_OK;
}
NS_IMETHODIMP nsDocShell::InsertDocumentInDocTree()
{
nsCOMPtr<nsIDocShell> parent(do_QueryInterface(mParent));
if(parent)
{
// Get the document object for the parent
nsCOMPtr<nsIContentViewer> parentContentViewer;
NS_ENSURE_SUCCESS(parent->GetContentViewer(getter_AddRefs(parentContentViewer)),
NS_ERROR_FAILURE);
NS_ENSURE_TRUE(parentContentViewer, NS_ERROR_FAILURE);
nsCOMPtr<nsIDocumentViewer> parentDocViewer;
parentDocViewer = do_QueryInterface(parentContentViewer);
NS_ENSURE_TRUE(parentDocViewer, NS_ERROR_FAILURE);
nsCOMPtr<nsIDocument> parentDoc;
NS_ENSURE_SUCCESS(parentDocViewer->GetDocument(*getter_AddRefs(parentDoc)), NS_ERROR_FAILURE);
NS_ENSURE_TRUE(parentDoc, NS_ERROR_FAILURE);
// Get the document object for this
nsCOMPtr<nsIDocumentViewer> docViewer;
docViewer = do_QueryInterface(mContentViewer);
NS_ENSURE_TRUE(docViewer, NS_ERROR_FAILURE);
nsCOMPtr<nsIDocument> doc;
NS_ENSURE_SUCCESS(docViewer->GetDocument(*getter_AddRefs(doc)), NS_ERROR_FAILURE);
NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE);
doc->SetParentDocument(parentDoc);
parentDoc->AddSubDocument(doc);
}
return NS_OK;
}
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);
}
mChildren.Clear();
return NS_OK;
}
nsresult nsDocShell::GetPrimaryFrameFor(nsIContent* content, nsIFrame** frame)
{
//XXX Implement
return NS_ERROR_FAILURE;
}
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