зеркало из https://github.com/mozilla/gecko-dev.git
WIP for a new frame and iframe loader. Not part of the build yet.
This commit is contained in:
jst%netscape.com
Родитель
33fccb8187
Коммит
43e5fdd4da
|
|
@ -0,0 +1,533 @@
|
|||
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
||||
/* ***** BEGIN LICENSE BLOCK *****
|
||||
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
|
||||
*
|
||||
* The contents of this file are subject to the Netscape 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/NPL/
|
||||
*
|
||||
* 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 Mozilla Communicator client code.
|
||||
*
|
||||
* The Initial Developer of the Original Code is
|
||||
* Netscape Communications Corporation.
|
||||
* Portions created by the Initial Developer are Copyright (C) 1998
|
||||
* the Initial Developer. All Rights Reserved.
|
||||
*
|
||||
* Contributor(s):
|
||||
* Johnny Stenback <jst@netscape.com> (original author)
|
||||
*
|
||||
*
|
||||
* Alternatively, the contents of this file may be used under the terms of
|
||||
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
||||
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
||||
* in which case the provisions of the GPL or the LGPL are applicable instead
|
||||
* of those above. If you wish to allow use of your version of this file only
|
||||
* under the terms of either the GPL or the LGPL, and not to allow others to
|
||||
* use your version of this file under the terms of the NPL, indicate your
|
||||
* decision by deleting the provisions above and replace them with the notice
|
||||
* and other provisions required by the GPL or the LGPL. If you do not delete
|
||||
* the provisions above, a recipient may use your version of this file under
|
||||
* the terms of any one of the NPL, the GPL or the LGPL.
|
||||
*
|
||||
* ***** END LICENSE BLOCK ***** */
|
||||
|
||||
#include "nsIFrameLoader.h"
|
||||
#include "nsIDOMHTMLIFrameElement.h"
|
||||
#include "nsIDOMHTMLFrameElement.h"
|
||||
#include "nsIDOMEventListener.h"
|
||||
#include "nsIDOMEventTarget.h"
|
||||
#include "nsIDOMWindow.h"
|
||||
#include "nsIPresContext.h"
|
||||
#include "nsIPresShell.h"
|
||||
#include "nsIDocument.h"
|
||||
#include "nsIDOMDocument.h"
|
||||
#include "nsIWebNavigation.h"
|
||||
#include "nsIChromeEventHandler.h"
|
||||
#include "nsIDocShell.h"
|
||||
#include "nsIDocShellTreeItem.h"
|
||||
#include "nsIDocShellTreeNode.h"
|
||||
#include "nsIDocShellTreeOwner.h"
|
||||
#include "nsIDocShellLoadInfo.h"
|
||||
#include "nsIBaseWindow.h"
|
||||
#include "nsIWebShell.h"
|
||||
#include "nsIWebProgressListener.h"
|
||||
#include "nsIWebProgress.h"
|
||||
#include "nsWeakReference.h"
|
||||
|
||||
#include "nsIScriptSecurityManager.h"
|
||||
#include "nsICodebasePrincipal.h"
|
||||
|
||||
#include "nsIURI.h"
|
||||
#include "nsNetUtil.h"
|
||||
|
||||
class nsFrameLoader : public nsIFrameLoader,
|
||||
public nsIDOMEventListener,
|
||||
public nsIWebProgressListener,
|
||||
public nsSupportsWeakReference
|
||||
{
|
||||
public:
|
||||
nsFrameLoader();
|
||||
virtual ~nsFrameLoader();
|
||||
|
||||
// nsISupports
|
||||
NS_DECL_ISUPPORTS
|
||||
|
||||
// nsIFrameLoader
|
||||
NS_IMETHOD Init(nsIDOMElement *aOwner);
|
||||
NS_IMETHOD LoadURI(nsIURI *aURI);
|
||||
NS_IMETHOD GetDocShell(nsIDocShell **aDocShell);
|
||||
NS_IMETHOD Destroy();
|
||||
|
||||
// nsIDOMEventListener
|
||||
NS_DECL_NSIDOMEVENTLISTENER
|
||||
|
||||
// nsIWebProgressListener
|
||||
NS_DECL_NSIWEBPROGRESSLISTENER
|
||||
|
||||
protected:
|
||||
nsresult GetPresContext(nsIPresContext **aPresContext);
|
||||
nsresult EnsureDocShell();
|
||||
|
||||
nsCOMPtr<nsIDocShell> mDocShell;
|
||||
|
||||
nsCOMPtr<nsIDOMElement> mOwnerElement;
|
||||
|
||||
nsCOMPtr<nsIURI> mURI;
|
||||
};
|
||||
|
||||
nsresult
|
||||
NS_NewFrameLoader(nsIFrameLoader **aFrameLoader)
|
||||
{
|
||||
*aFrameLoader = new nsFrameLoader();
|
||||
NS_ENSURE_TRUE(*aFrameLoader, NS_ERROR_OUT_OF_MEMORY);
|
||||
|
||||
NS_ADDREF(*aFrameLoader);
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
nsFrameLoader::nsFrameLoader()
|
||||
{
|
||||
NS_INIT_ISUPPORTS();
|
||||
}
|
||||
|
||||
nsFrameLoader::~nsFrameLoader()
|
||||
{
|
||||
nsCOMPtr<nsIBaseWindow> treeOwnerAsWin(do_QueryInterface(mDocShell));
|
||||
|
||||
if (treeOwnerAsWin) {
|
||||
treeOwnerAsWin->Destroy();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// QueryInterface implementation for nsFrameLoader
|
||||
NS_INTERFACE_MAP_BEGIN(nsFrameLoader)
|
||||
NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
|
||||
NS_INTERFACE_MAP_ENTRY(nsIFrameLoader)
|
||||
NS_INTERFACE_MAP_END
|
||||
|
||||
|
||||
NS_IMPL_ADDREF(nsFrameLoader);
|
||||
NS_IMPL_RELEASE(nsFrameLoader);
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsFrameLoader::Init(nsIDOMElement *aOwner)
|
||||
{
|
||||
mOwnerElement = aOwner;
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsFrameLoader::LoadURI(nsIURI *aURI)
|
||||
{
|
||||
mURI = aURI;
|
||||
|
||||
nsresult rv = EnsureDocShell();
|
||||
|
||||
|
||||
// Prevent recursion
|
||||
|
||||
|
||||
|
||||
// mCreatingViewer=PR_TRUE;
|
||||
|
||||
|
||||
// Check for security
|
||||
nsCOMPtr<nsIScriptSecurityManager> secMan =
|
||||
do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID, &rv);
|
||||
NS_ENSURE_SUCCESS(rv, rv);
|
||||
|
||||
nsCOMPtr<nsIDocShellLoadInfo> loadInfo;
|
||||
mDocShell->CreateLoadInfo(getter_AddRefs(loadInfo));
|
||||
NS_ENSURE_TRUE(loadInfo, NS_ERROR_FAILURE);
|
||||
|
||||
// Get referring URL
|
||||
nsCOMPtr<nsIURI> referrer;
|
||||
nsCOMPtr<nsIPrincipal> principal;
|
||||
rv = secMan->GetSubjectPrincipal(getter_AddRefs(principal));
|
||||
NS_ENSURE_SUCCESS(rv, rv);
|
||||
|
||||
// If we were called from script, get the referring URL from the script
|
||||
|
||||
if (principal) {
|
||||
nsCOMPtr<nsICodebasePrincipal> codebase(do_QueryInterface(principal));
|
||||
|
||||
if (codebase) {
|
||||
rv = codebase->GetURI(getter_AddRefs(referrer));
|
||||
NS_ENSURE_SUCCESS(rv, rv);
|
||||
}
|
||||
|
||||
// Pass the script principal to the docshell
|
||||
|
||||
loadInfo->SetOwner(principal);
|
||||
}
|
||||
|
||||
if (!referrer) {
|
||||
// We're not being called form script, tell the docshell
|
||||
// to inherit an owner from the current document.
|
||||
|
||||
loadInfo->SetInheritOwner(PR_TRUE);
|
||||
|
||||
nsCOMPtr<nsIDOMDocument> dom_doc;
|
||||
mOwnerElement->GetOwnerDocument(getter_AddRefs(dom_doc));
|
||||
nsCOMPtr<nsIDocument> doc(do_QueryInterface(dom_doc));
|
||||
|
||||
if (doc) {
|
||||
doc->GetBaseURL(*getter_AddRefs(referrer));
|
||||
}
|
||||
}
|
||||
|
||||
loadInfo->SetReferrer(referrer);
|
||||
|
||||
// Check if we are allowed to load absURL
|
||||
rv = secMan->CheckLoadURI(referrer, mURI,
|
||||
nsIScriptSecurityManager::STANDARD);
|
||||
if (NS_FAILED(rv)) {
|
||||
return rv; // We're not
|
||||
}
|
||||
|
||||
nsCOMPtr<nsIWebProgress> webProgress(do_GetInterface(mDocShell));
|
||||
|
||||
if (webProgress) {
|
||||
webProgress->AddProgressListener(this);
|
||||
}
|
||||
|
||||
rv = mDocShell->LoadURI(mURI, loadInfo, nsIWebNavigation::LOAD_FLAGS_NONE);
|
||||
NS_ASSERTION(NS_SUCCEEDED(rv), "failed to load URL");
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsFrameLoader::GetDocShell(nsIDocShell **aDocShell)
|
||||
{
|
||||
EnsureDocShell();
|
||||
|
||||
*aDocShell = mDocShell;
|
||||
NS_IF_ADDREF(*aDocShell);
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsFrameLoader::Destroy()
|
||||
{
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsFrameLoader::HandleEvent(nsIDOMEvent *aEvent)
|
||||
{
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
nsresult
|
||||
nsFrameLoader::GetPresContext(nsIPresContext **aPresContext)
|
||||
{
|
||||
*aPresContext = nsnull;
|
||||
|
||||
nsCOMPtr<nsIDOMDocument> dom_doc;
|
||||
mOwnerElement->GetOwnerDocument(getter_AddRefs(dom_doc));
|
||||
|
||||
nsCOMPtr<nsIDocument> doc(do_QueryInterface(dom_doc));
|
||||
|
||||
while (doc) {
|
||||
nsCOMPtr<nsIPresShell> presShell;
|
||||
doc->GetShellAt(0, getter_AddRefs(presShell));
|
||||
|
||||
if (presShell) {
|
||||
presShell->GetPresContext(aPresContext);
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
nsCOMPtr<nsIDocument> parent;
|
||||
doc->GetParentDocument(getter_AddRefs(parent));
|
||||
|
||||
doc = parent;
|
||||
}
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
nsresult
|
||||
nsFrameLoader::EnsureDocShell()
|
||||
{
|
||||
if (mDocShell) {
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
#if 0
|
||||
|
||||
|
||||
|
||||
|
||||
// Bug 8065: Don't exceed some maximum depth in content frames
|
||||
// (MAX_DEPTH_CONTENT_FRAMES)
|
||||
PRInt32 depth = 0;
|
||||
nsCOMPtr<nsISupports> parentAsSupports;
|
||||
aPresContext->GetContainer(getter_AddRefs(parentAsSupports));
|
||||
|
||||
if (parentAsSupports) {
|
||||
nsCOMPtr<nsIDocShellTreeItem> parentAsItem =
|
||||
do_QueryInterface(parentAsSupports);
|
||||
|
||||
while (parentAsItem) {
|
||||
++depth;
|
||||
|
||||
if (MAX_DEPTH_CONTENT_FRAMES < depth)
|
||||
return NS_ERROR_UNEXPECTED; // Too deep, give up! (silently?)
|
||||
|
||||
// Only count depth on content, not chrome.
|
||||
// If we wanted to limit total depth, skip the following check:
|
||||
PRInt32 parentType;
|
||||
parentAsItem->GetItemType(&parentType);
|
||||
|
||||
if (nsIDocShellTreeItem::typeContent == parentType) {
|
||||
nsIDocShellTreeItem* temp = parentAsItem;
|
||||
temp->GetParent(getter_AddRefs(parentAsItem));
|
||||
} else {
|
||||
break; // we have exited content, stop counting, depth is OK!
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
mDocShell = do_CreateInstance("@mozilla.org/webshell;1");
|
||||
NS_ENSURE_TRUE(mDocShell, NS_ERROR_FAILURE);
|
||||
|
||||
#if 0
|
||||
// notify the pres shell that a docshell has been created
|
||||
nsCOMPtr<nsIPresShell> presShell;
|
||||
aPresContext->GetShell(getter_AddRefs(presShell));
|
||||
|
||||
if (presShell) {
|
||||
nsCOMPtr<nsISupports> subShellAsSupports(do_QueryInterface(mDocShell));
|
||||
NS_ENSURE_TRUE(subShellAsSupports, NS_ERROR_FAILURE);
|
||||
|
||||
presShell->SetSubShellFor(mContent, subShellAsSupports);
|
||||
|
||||
// We need to be able to get back to the presShell to unset the
|
||||
// subshell at destruction
|
||||
mPresShellWeak = getter_AddRefs(NS_GetWeakReference(presShell));
|
||||
}
|
||||
#endif
|
||||
|
||||
nsCOMPtr<nsIDocShellTreeItem> docShellAsItem(do_QueryInterface(mDocShell));
|
||||
NS_ENSURE_TRUE(docShellAsItem, NS_ERROR_FAILURE);
|
||||
nsAutoString frameName;
|
||||
mOwnerElement->GetAttribute(NS_LITERAL_STRING("name"), frameName);
|
||||
|
||||
if (!frameName.IsEmpty()) {
|
||||
docShellAsItem->SetName(frameName.get());
|
||||
}
|
||||
|
||||
// If our container is a web-shell, inform it that it has a new
|
||||
// child. If it's not a web-shell then some things will not operate
|
||||
// properly.
|
||||
|
||||
|
||||
nsCOMPtr<nsIPresContext> presContext;
|
||||
GetPresContext(getter_AddRefs(presContext));
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
// what if !presContext ?
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
nsCOMPtr<nsISupports> container;
|
||||
presContext->GetContainer(getter_AddRefs(container));
|
||||
|
||||
if (container) {
|
||||
nsCOMPtr<nsIDocShellTreeNode> parentAsNode(do_QueryInterface(container));
|
||||
if (parentAsNode) {
|
||||
nsCOMPtr<nsIDocShellTreeItem> parentAsItem =
|
||||
do_QueryInterface(parentAsNode);
|
||||
|
||||
PRInt32 parentType;
|
||||
parentAsItem->GetItemType(&parentType);
|
||||
|
||||
nsAutoString value, valuePiece;
|
||||
PRBool isContent;
|
||||
|
||||
isContent = PR_FALSE;
|
||||
mOwnerElement->GetAttribute(NS_LITERAL_STRING("type"), value);
|
||||
|
||||
if (!value.IsEmpty()) {
|
||||
// we accept "content" and "content-xxx" values.
|
||||
// at time of writing, we expect "xxx" to be "primary", but
|
||||
// someday it might be an integer expressing priority
|
||||
|
||||
|
||||
|
||||
|
||||
// string iterators!
|
||||
|
||||
|
||||
value.Left(valuePiece, 7);
|
||||
if (valuePiece.EqualsIgnoreCase("content") &&
|
||||
(value.Length() == 7 ||
|
||||
value.Mid(valuePiece, 7, 1) == 1 &&
|
||||
valuePiece.EqualsWithConversion("-"))) {
|
||||
isContent = PR_TRUE;
|
||||
}
|
||||
}
|
||||
|
||||
if (isContent) {
|
||||
// The web shell's type is content.
|
||||
docShellAsItem->SetItemType(nsIDocShellTreeItem::typeContent);
|
||||
} else {
|
||||
// Inherit our type from our parent webshell. If it is
|
||||
// chrome, we'll be chrome. If it is content, we'll be
|
||||
// content.
|
||||
docShellAsItem->SetItemType(parentType);
|
||||
}
|
||||
|
||||
parentAsNode->AddChild(docShellAsItem);
|
||||
|
||||
if (isContent) {
|
||||
nsCOMPtr<nsIDocShellTreeOwner> parentTreeOwner;
|
||||
parentAsItem->GetTreeOwner(getter_AddRefs(parentTreeOwner));
|
||||
if(parentTreeOwner) {
|
||||
PRBool is_primary = value.EqualsIgnoreCase("content-primary");
|
||||
|
||||
parentTreeOwner->ContentShellAdded(docShellAsItem, is_primary,
|
||||
value.get());
|
||||
}
|
||||
}
|
||||
|
||||
// connect the container...
|
||||
nsCOMPtr<nsIWebShell> webShell(do_QueryInterface(mDocShell));
|
||||
nsCOMPtr<nsIWebShellContainer> outerContainer =
|
||||
do_QueryInterface(container);
|
||||
|
||||
if (outerContainer) {
|
||||
webShell->SetContainer(outerContainer);
|
||||
}
|
||||
|
||||
// Make sure all shells have links back to the content element
|
||||
// in the nearest enclosing chrome shell.
|
||||
nsCOMPtr<nsIChromeEventHandler> chromeEventHandler;
|
||||
|
||||
if (parentType == nsIDocShellTreeItem::typeChrome) {
|
||||
// Our parent shell is a chrome shell. It is therefore our nearest
|
||||
// enclosing chrome shell.
|
||||
chromeEventHandler = do_QueryInterface(mOwnerElement);
|
||||
NS_WARN_IF_FALSE(chromeEventHandler,
|
||||
"This mContent should implement this.");
|
||||
} else {
|
||||
nsCOMPtr<nsIDocShell> parentShell(do_QueryInterface(parentAsNode));
|
||||
|
||||
// Our parent shell is a content shell. Get the chrome info from
|
||||
// it and use that for our shell as well.
|
||||
parentShell->GetChromeEventHandler(getter_AddRefs(chromeEventHandler));
|
||||
}
|
||||
|
||||
|
||||
|
||||
// Should this be in the layout code?
|
||||
|
||||
mDocShell->SetChromeEventHandler(chromeEventHandler);
|
||||
}
|
||||
}
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsFrameLoader::OnStateChange(nsIWebProgress *aWebProgress,
|
||||
nsIRequest *aRequest,
|
||||
PRInt32 aStateFlags, PRUint32 aStatus)
|
||||
{
|
||||
if (!((~aStateFlags) & (nsIWebProgressListener::STATE_IS_DOCUMENT |
|
||||
nsIWebProgressListener::STATE_TRANSFERRING))) {
|
||||
nsCOMPtr<nsIDOMWindow> win(do_GetInterface(mDocShell));
|
||||
nsCOMPtr<nsIDOMEventTarget> eventTarget(do_QueryInterface(win));
|
||||
|
||||
if (eventTarget) {
|
||||
eventTarget->AddEventListener(NS_LITERAL_STRING("load"), this,
|
||||
PR_FALSE);
|
||||
}
|
||||
}
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsFrameLoader::OnProgressChange(nsIWebProgress *aWebProgress,
|
||||
nsIRequest *aRequest,
|
||||
PRInt32 aCurSelfProgress,
|
||||
PRInt32 aMaxSelfProgress,
|
||||
PRInt32 aCurTotalProgress,
|
||||
PRInt32 aMaxTotalProgress)
|
||||
{
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsFrameLoader::OnLocationChange(nsIWebProgress *aWebProgress,
|
||||
nsIRequest *aRequest, nsIURI *location)
|
||||
{
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsFrameLoader::OnStatusChange(nsIWebProgress *aWebProgress,
|
||||
nsIRequest *aRequest, nsresult aStatus,
|
||||
const PRUnichar *aMessage)
|
||||
{
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsFrameLoader::OnSecurityChange(nsIWebProgress *aWebProgress,
|
||||
nsIRequest *aRequest, PRInt32 state)
|
||||
{
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
Загрузка…
Ссылка в новой задаче