mozilla
/
pjs
зеркало из https://github.com/mozilla/pjs.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность
pjs/docshell/base/nsWebShell.cpp

1427 строки
41 KiB
C++
Исходник Ответственный История

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vi:tw=2:ts=2:et:sw=2:
*
* 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 Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
* Travis Bogard <travis@netscape.com>
* Pierre Phaneuf <pp@ludusdesign.com>
*/
#ifdef XP_OS2_VACPP
// XXX every other file that pulls in _os2.h has no problem with HTMX there;
// this one does; the problem may lie with the order of the headers below,
// which is why this fix is here instead of in _os2.h
typedef unsigned long HMTX;
#endif
#include "nsDocShell.h"
#include "nsIWebShell.h"
#include "nsWebShell.h"
#include "nsIWebBrowserChrome.h"
#include "nsIInterfaceRequestor.h"
#include "nsIDocumentLoader.h"
#include "nsIDocumentLoaderObserver.h"
#include "nsIDocumentLoaderFactory.h"
#include "nsIContentViewer.h"
#include "nsIDocumentViewer.h"
#include "nsIMarkupDocumentViewer.h"
#include "nsIClipboardCommands.h"
#include "nsILinkHandler.h"
#include "nsIStreamListener.h"
#include "nsIPrompt.h"
#include "nsNetUtil.h"
#include "nsIProtocolHandler.h"
#include "nsIDNSService.h"
#include "nsIRefreshURI.h"
#include "nsIScriptGlobalObject.h"
#include "nsIScriptGlobalObjectOwner.h"
#include "nsDOMEvent.h"
#include "nsIPresContext.h"
#include "nsIComponentManager.h"
#include "nsIServiceManager.h"
#include "nsIEventQueueService.h"
#include "nsCRT.h"
#include "nsVoidArray.h"
#include "nsString.h"
#include "nsWidgetsCID.h"
#include "nsGfxCIID.h"
#include "plevent.h"
#include "prprf.h"
#include "nsIPluginHost.h"
#include "nsplugin.h"
//#include "nsPluginsCID.h"
#include "nsIPluginManager.h"
#include "nsIPref.h"
#include "nsITimer.h"
#include "nsITimerCallback.h"
#include "nsIContent.h"
#include "prlog.h"
#include "nsCOMPtr.h"
#include "nsIPresShell.h"
#include "nsIWebShellServices.h"
#include "nsIGlobalHistory.h"
#include "prmem.h"
#include "nsXPIDLString.h"
#include "nsDOMError.h"
#include "nsIDOMHTMLElement.h"
#include "nsIDOMHTMLDocument.h"
#include "nsLayoutCID.h"
#include "nsIDOMRange.h"
#include "nsIURIContentListener.h"
#include "nsIDOMDocument.h"
#include "nsIBaseWindow.h"
#include "nsIDocShell.h"
#include "nsIDocShellTreeItem.h"
#include "nsIDocShellTreeNode.h"
#include "nsIDocShellTreeOwner.h"
#include "nsCURILoader.h"
#include "nsIDOMWindowInternal.h"
#include "nsEscape.h"
#include "nsIPlatformCharset.h"
#include "nsICharsetConverterManager.h"
#include "nsISocketTransportService.h"
#include "nsILayoutHistoryState.h"
#include "nsTextFormatter.h"
#include "nsIHTTPChannel.h" // add this to the ick include list...we need it to QI for post data interface
#include "nsHTTPEnums.h"
#include "nsILocaleService.h"
#include "nsIStringBundle.h"
#include "nsIIOService.h"
#include "nsIURL.h"
#include "nsIProtocolHandler.h"
//XXX for nsIPostData; this is wrong; we shouldn't see the nsIDocument type
#include "nsIDocument.h"
#define SH_IN_FRAMES 1
#ifdef NS_DEBUG
/**
* Note: the log module is created during initialization which
* means that you cannot perform logging before then.
*/
static PRLogModuleInfo* gLogModule = PR_NewLogModule("webshell");
#endif
#define WEB_TRACE_CALLS 0x1
#define WEB_TRACE_HISTORY 0x2
#define WEB_LOG_TEST(_lm,_bit) (PRIntn((_lm)->level) & (_bit))
#ifdef NS_DEBUG
#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
//static NS_DEFINE_CID(kGlobalHistoryCID, NS_GLOBALHISTORY_CID);
//static NS_DEFINE_CID(kIOServiceCID, NS_IOSERVICE_CID);
static NS_DEFINE_CID(kSimpleURICID, NS_SIMPLEURI_CID);
//----------------------------------------------------------------------
//----------------------------------------------------------------------
// Class IID's
static NS_DEFINE_IID(kEventQueueServiceCID, NS_EVENTQUEUESERVICE_CID);
static NS_DEFINE_CID(kCDOMRangeCID, NS_RANGE_CID);
//----------------------------------------------------------------------
// Note: operator new zeros our memory
nsWebShell::nsWebShell() : nsDocShell()
{
#ifdef DEBUG
// We're counting the number of |nsWebShells| to help find leaks
++gNumberOfWebShells;
#endif
#ifdef DEBUG
printf("WEBSHELL+ = %ld\n", gNumberOfWebShells);
#endif
NS_INIT_REFCNT();
mThreadEventQueue = nsnull;
InitFrameData();
mItemType = typeContent;
mCharsetReloadState = eCharsetReloadInit;
mHistoryState = nsnull;
mFiredUnloadEvent = PR_FALSE;
mBounds.SetRect(0, 0, 0, 0);
}
nsWebShell::~nsWebShell()
{
Destroy();
// Stop any pending document loads and destroy the loader...
if (nsnull != mDocLoader) {
mDocLoader->Stop();
mDocLoader->RemoveObserver((nsIDocumentLoaderObserver*)this);
mDocLoader->SetContainer(nsnull);
mDocLoader->Destroy();
NS_RELEASE(mDocLoader);
}
// Cancel any timers that were set for this loader.
CancelRefreshURITimers();
++mRefCnt; // following releases can cause this destructor to be called
// recursively if the refcount is allowed to remain 0
NS_IF_RELEASE(mThreadEventQueue);
mContentViewer=nsnull;
mDeviceContext=nsnull;
NS_IF_RELEASE(mContainer);
if (mScriptGlobal) {
mScriptGlobal->SetDocShell(nsnull);
mScriptGlobal = nsnull;
}
if (mScriptContext) {
mScriptContext->SetOwner(nsnull);
mScriptContext = nsnull;
}
InitFrameData();
#ifdef DEBUG
// We're counting the number of |nsWebShells| to help find leaks
--gNumberOfWebShells;
#endif
#ifdef DEBUG
printf("WEBSHELL- = %ld\n", gNumberOfWebShells);
#endif
}
void nsWebShell::InitFrameData()
{
SetMarginWidth(-1);
SetMarginHeight(-1);
}
nsresult
nsWebShell::FireUnloadForChildren()
{
nsresult rv = NS_OK;
PRInt32 i, n = mChildren.Count();
for (i = 0; i < n; i++) {
nsIDocShell* shell = (nsIDocShell*) mChildren.ElementAt(i);
nsCOMPtr<nsIWebShell> webShell(do_QueryInterface(shell));
rv = webShell->FireUnloadEvent();
}
return rv;
}
NS_IMETHODIMP
nsWebShell::FireUnloadEvent()
{
nsresult rv = NS_OK;
if (!mFiredUnloadEvent) {
mFiredUnloadEvent = PR_TRUE;
if (mScriptGlobal) {
nsIDocumentViewer* docViewer;
if (mContentViewer && NS_SUCCEEDED(mContentViewer->QueryInterface(NS_GET_IID(nsIDocumentViewer), (void**)&docViewer))) {
nsIPresContext *presContext;
if (NS_SUCCEEDED(docViewer->GetPresContext(presContext))) {
nsEventStatus status = nsEventStatus_eIgnore;
nsMouseEvent event;
event.eventStructType = NS_EVENT;
event.message = NS_PAGE_UNLOAD;
rv = mScriptGlobal->HandleDOMEvent(presContext, &event, nsnull, NS_EVENT_FLAG_INIT, &status);
NS_RELEASE(presContext);
}
NS_RELEASE(docViewer);
}
}
}
//Fire child unloads now while our data is intact.
rv = FireUnloadForChildren();
return rv;
}
NS_IMPL_ADDREF_INHERITED(nsWebShell, nsDocShell)
NS_IMPL_RELEASE_INHERITED(nsWebShell, nsDocShell)
NS_INTERFACE_MAP_BEGIN(nsWebShell)
#if 0 // inherits from nsDocShell:
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIWebShell)
#endif
NS_INTERFACE_MAP_ENTRY(nsIWebShell)
NS_INTERFACE_MAP_ENTRY(nsIWebShellServices)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsIContentViewerContainer, nsIWebShell)
NS_INTERFACE_MAP_ENTRY(nsIDocumentLoaderObserver)
NS_INTERFACE_MAP_ENTRY(nsIWebShellContainer)
NS_INTERFACE_MAP_ENTRY(nsILinkHandler)
NS_INTERFACE_MAP_ENTRY(nsIClipboardCommands)
#if 0 // inherits from nsDocShell:
NS_INTERFACE_MAP_ENTRY(nsIScriptGlobalObjectOwner)
NS_INTERFACE_MAP_ENTRY(nsIInterfaceRequestor)
NS_INTERFACE_MAP_ENTRY(nsIBaseWindow)
NS_INTERFACE_MAP_ENTRY(nsIDocShell)
NS_INTERFACE_MAP_ENTRY(nsIDocShellTreeItem)
NS_INTERFACE_MAP_ENTRY(nsIDocShellTreeNode)
NS_INTERFACE_MAP_ENTRY(nsIWebNavigation)
NS_INTERFACE_MAP_ENTRY(nsIRefreshURI)
NS_INTERFACE_MAP_ENTRY(nsIScrollable)
#endif
NS_INTERFACE_MAP_END_INHERITING(nsDocShell)
NS_IMETHODIMP
nsWebShell::GetInterface(const nsIID &aIID, void** aInstancePtr)
{
NS_ENSURE_ARG_POINTER(aInstancePtr);
nsresult rv = NS_OK;
*aInstancePtr = nsnull;
if(aIID.Equals(NS_GET_IID(nsILinkHandler)))
{
*aInstancePtr = NS_STATIC_CAST(nsILinkHandler*, this);
NS_ADDREF((nsISupports*)*aInstancePtr);
return NS_OK;
}
else if(aIID.Equals(NS_GET_IID(nsIScriptGlobalObjectOwner)))
{
*aInstancePtr = NS_STATIC_CAST(nsIScriptGlobalObjectOwner*, this);
NS_ADDREF((nsISupports*)*aInstancePtr);
return NS_OK;
}
else if(aIID.Equals(NS_GET_IID(nsIScriptGlobalObject)))
{
NS_ENSURE_SUCCESS(EnsureScriptEnvironment(), NS_ERROR_FAILURE);
*aInstancePtr = mScriptGlobal;
NS_ADDREF((nsISupports*)*aInstancePtr);
return NS_OK;
}
else if(aIID.Equals(NS_GET_IID(nsIDOMWindowInternal)))
{
NS_ENSURE_SUCCESS(EnsureScriptEnvironment(), NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(mScriptGlobal->QueryInterface(NS_GET_IID(nsIDOMWindowInternal),
aInstancePtr), NS_ERROR_FAILURE);
return NS_OK;
}
else if(aIID.Equals(NS_GET_IID(nsIDOMWindow)))
{
NS_ENSURE_SUCCESS(EnsureScriptEnvironment(), NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(mScriptGlobal->QueryInterface(NS_GET_IID(nsIDOMWindow),
aInstancePtr), NS_ERROR_FAILURE);
return NS_OK;
}
if (!*aInstancePtr || NS_FAILED(rv))
return nsDocShell::GetInterface(aIID,aInstancePtr);
else
return rv;
}
NS_IMETHODIMP
nsWebShell::SetupNewViewer(nsIContentViewer* aViewer)
{
NS_ENSURE_SUCCESS(FireUnloadEvent(), NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(nsDocShell::SetupNewViewer(aViewer), NS_ERROR_FAILURE);
// Set mFiredUnloadEvent = PR_FALSE so that the unload handler for the
// *new* document will fire.
mFiredUnloadEvent = PR_FALSE;
// 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((nsILayoutHistoryState*)mHistoryState);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::Embed(nsIContentViewer* aContentViewer,
const char* aCommand,
nsISupports* aExtraInfo)
{
#ifdef SH_IN_FRAMES
return nsDocShell::Embed(aContentViewer, aCommand, aExtraInfo);
#else
return SetupNewViewer(aContentViewer);
#endif /* SH_IN_FRAMES */
}
NS_IMETHODIMP
nsWebShell::SetContainer(nsIWebShellContainer* aContainer)
{
NS_IF_RELEASE(mContainer);
mContainer = aContainer;
NS_IF_ADDREF(mContainer);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetContainer(nsIWebShellContainer*& aResult)
{
aResult = mContainer;
NS_IF_ADDREF(mContainer);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetTopLevelWindow(nsIWebShellContainer** aTopLevelWindow)
{
NS_ENSURE_ARG_POINTER(aTopLevelWindow);
*aTopLevelWindow = nsnull;
nsCOMPtr<nsIWebShell> rootWebShell;
GetRootWebShellEvenIfChrome(getter_AddRefs(rootWebShell));
if(!rootWebShell)
return NS_OK;
nsCOMPtr<nsIWebShellContainer> rootContainer;
rootWebShell->GetContainer(*aTopLevelWindow);
return NS_OK;
}
nsEventStatus PR_CALLBACK
nsWebShell::HandleEvent(nsGUIEvent *aEvent)
{
return nsEventStatus_eIgnore;
}
NS_IMETHODIMP
nsWebShell::GetRootWebShell(nsIWebShell*& aResult)
{
nsCOMPtr<nsIDocShellTreeItem> top;
GetSameTypeRootTreeItem(getter_AddRefs(top));
nsCOMPtr<nsIWebShell> topAsWebShell(do_QueryInterface(top));
aResult = topAsWebShell;
NS_IF_ADDREF(aResult);
return NS_OK;
}
void
nsWebShell::GetRootWebShellEvenIfChrome(nsIWebShell** aResult)
{
nsCOMPtr<nsIDocShellTreeItem> top;
GetRootTreeItem(getter_AddRefs(top));
nsCOMPtr<nsIWebShell> topAsWebShell(do_QueryInterface(top));
*aResult = topAsWebShell;
NS_IF_ADDREF(*aResult);
}
/*
NS_IMETHODIMP
nsWebShell::SetParent(nsIWebShell* aParent)
{
nsCOMPtr<nsIDocShellTreeItem> parentAsTreeItem(do_QueryInterface(aParent));
mParent = parentAsTreeItem.get();
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetParent(nsIWebShell*& aParent)
{
nsCOMPtr<nsIDocShellTreeItem> parent;
NS_ENSURE_SUCCESS(GetSameTypeParent(getter_AddRefs(parent)), NS_ERROR_FAILURE);
if(parent)
parent->QueryInterface(NS_GET_IID(nsIWebShell), (void**)&aParent);
else
aParent = nsnull;
return NS_OK;
}
*/
NS_IMETHODIMP
nsWebShell::GetReferrer(nsIURI **aReferrer)
{
*aReferrer = mReferrerURI;
NS_IF_ADDREF(*aReferrer);
return NS_OK;
}
void
nsWebShell::SetReferrer(const PRUnichar* aReferrer)
{
NS_NewURI(getter_AddRefs(mReferrerURI), nsLiteralString(aReferrer), nsnull);
}
NS_IMETHODIMP
nsWebShell::SetURL(const PRUnichar* aURL)
{
nsCOMPtr<nsIURI> uri;
NS_ENSURE_SUCCESS(NS_NewURI(getter_AddRefs(uri), nsLiteralString(aURL),
nsnull),
NS_ERROR_FAILURE);
SetCurrentURI(uri);
return NS_OK;
}
/**
* Document Load methods
*/
NS_IMETHODIMP
nsWebShell::GetDocumentLoader(nsIDocumentLoader*& aResult)
{
aResult = mDocLoader;
NS_IF_ADDREF(mDocLoader);
return (nsnull != mDocLoader) ? NS_OK : NS_ERROR_FAILURE;
}
//----------------------------------------
// History methods
NS_IMETHODIMP nsWebShell::GoTo(PRInt32 aIndex)
{
NS_ENSURE_STATE(mSessionHistory);
NS_ENSURE_TRUE(!IsFrame(), NS_ERROR_FAILURE);
nsCOMPtr<nsISHEntry> entry;
NS_ENSURE_SUCCESS(mSessionHistory->GetEntryAtIndex(aIndex, PR_TRUE,
getter_AddRefs(entry)), NS_ERROR_FAILURE);
NS_ENSURE_TRUE(entry, NS_ERROR_FAILURE);
UpdateCurrentSessionHistory();
#ifdef SH_IN_FRAMES
NS_ENSURE_SUCCESS(LoadHistoryEntry(entry, LOAD_HISTORY), NS_ERROR_FAILURE);
#else
NS_ENSURE_SUCCESS(LoadHistoryEntry(entry), NS_ERROR_FAILURE);
#endif
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetHistoryLength(PRInt32& aResult)
{
NS_ENSURE_STATE(mSessionHistory);
NS_ENSURE_TRUE(!IsFrame(), NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(mSessionHistory->GetCount(&aResult), NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetHistoryIndex(PRInt32& aResult)
{
NS_ENSURE_STATE(mSessionHistory);
NS_ENSURE_TRUE(!IsFrame(), NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(mSessionHistory->GetIndex(&aResult), NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetURL(PRInt32 aIndex, const PRUnichar** aURLResult)
{
NS_ENSURE_STATE(mSessionHistory);
NS_ENSURE_TRUE(!IsFrame(), NS_ERROR_FAILURE);
nsCOMPtr<nsISHEntry> entry;
NS_ENSURE_SUCCESS(mSessionHistory->GetEntryAtIndex(aIndex, PR_TRUE,
getter_AddRefs(entry)), NS_ERROR_FAILURE);
NS_ENSURE_TRUE(entry, NS_ERROR_FAILURE);
nsCOMPtr<nsIURI> uri;
entry->GetURI(getter_AddRefs(uri));
NS_ENSURE_TRUE(uri, NS_ERROR_FAILURE);
nsXPIDLCString spec;
uri->GetSpec(getter_Copies(spec));
*aURLResult = NS_ConvertASCIItoUCS2(spec).ToNewUnicode();
return NS_OK;
}
//----------------------------------------
//----------------------------------------------------------------------
// WebShell container implementation
NS_IMETHODIMP
nsWebShell::SetHistoryState(nsISupports* aLayoutHistoryState)
{
mHistoryState = aLayoutHistoryState;
return NS_OK;
}
//----------------------------------------------------------------------
// Web Shell Services API
NS_IMETHODIMP
nsWebShell::LoadDocument(const char* aURL,
const char* aCharset,
nsCharsetSource aSource)
{
// XXX hack. kee the aCharset and aSource wait to pick it up
nsCOMPtr<nsIContentViewer> cv;
NS_ENSURE_SUCCESS(GetContentViewer(getter_AddRefs(cv)), NS_ERROR_FAILURE);
if (cv)
{
nsCOMPtr<nsIMarkupDocumentViewer> muDV = do_QueryInterface(cv);
if (muDV)
{
nsCharsetSource hint;
muDV->GetHintCharacterSetSource((PRInt32 *)(&hint));
if( aSource > hint )
{
muDV->SetHintCharacterSet(NS_ConvertASCIItoUCS2(aCharset).GetUnicode());
muDV->SetHintCharacterSetSource((PRInt32)aSource);
if(eCharsetReloadRequested != mCharsetReloadState)
{
mCharsetReloadState = eCharsetReloadRequested;
LoadURI(NS_ConvertASCIItoUCS2(aURL).GetUnicode(), LOAD_FLAGS_NONE);
}
}
}
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::ReloadDocument(const char* aCharset,
nsCharsetSource aSource)
{
// XXX hack. kee the aCharset and aSource wait to pick it up
nsCOMPtr<nsIContentViewer> cv;
NS_ENSURE_SUCCESS(GetContentViewer(getter_AddRefs(cv)), NS_ERROR_FAILURE);
if (cv)
{
nsCOMPtr<nsIMarkupDocumentViewer> muDV = do_QueryInterface(cv);
if (muDV)
{
nsCharsetSource hint;
muDV->GetHintCharacterSetSource((PRInt32 *)(&hint));
if( aSource > hint )
{
muDV->SetHintCharacterSet(NS_ConvertASCIItoUCS2(aCharset).GetUnicode());
muDV->SetHintCharacterSetSource((PRInt32)aSource);
if(eCharsetReloadRequested != mCharsetReloadState)
{
mCharsetReloadState = eCharsetReloadRequested;
return Reload(LOAD_FLAGS_NONE);
}
}
}
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::StopDocumentLoad(void)
{
if(eCharsetReloadRequested != mCharsetReloadState)
{
Stop();
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::SetRendering(PRBool aRender)
{
if(eCharsetReloadRequested != mCharsetReloadState)
{
if (mContentViewer) {
mContentViewer->SetEnableRendering(aRender);
}
}
return NS_OK;
}
//----------------------------------------------------------------------
// WebShell link handling
struct OnLinkClickEvent : public PLEvent {
OnLinkClickEvent(nsWebShell* aHandler, nsIContent* aContent,
nsLinkVerb aVerb, const PRUnichar* aURLSpec,
const PRUnichar* aTargetSpec, nsIInputStream* aPostDataStream = 0,
nsIInputStream* aHeadersDataStream = 0);
~OnLinkClickEvent();
void HandleEvent() {
mHandler->HandleLinkClickEvent(mContent, mVerb, mURLSpec->GetUnicode(),
mTargetSpec->GetUnicode(), mPostDataStream,
mHeadersDataStream);
}
nsWebShell* mHandler;
nsString* mURLSpec;
nsString* mTargetSpec;
nsIInputStream* mPostDataStream;
nsIInputStream* mHeadersDataStream;
nsIContent* mContent;
nsLinkVerb mVerb;
};
static void PR_CALLBACK HandlePLEvent(OnLinkClickEvent* aEvent)
{
aEvent->HandleEvent();
}
static void PR_CALLBACK DestroyPLEvent(OnLinkClickEvent* aEvent)
{
delete aEvent;
}
OnLinkClickEvent::OnLinkClickEvent(nsWebShell* aHandler,
nsIContent *aContent,
nsLinkVerb aVerb,
const PRUnichar* aURLSpec,
const PRUnichar* aTargetSpec,
nsIInputStream* aPostDataStream,
nsIInputStream* aHeadersDataStream)
{
nsIEventQueue* eventQueue;
mHandler = aHandler;
NS_ADDREF(aHandler);
mURLSpec = new nsString(aURLSpec);
mTargetSpec = new nsString(aTargetSpec);
mPostDataStream = aPostDataStream;
NS_IF_ADDREF(mPostDataStream);
mHeadersDataStream = aHeadersDataStream;
NS_IF_ADDREF(mHeadersDataStream);
mContent = aContent;
NS_IF_ADDREF(mContent);
mVerb = aVerb;
PL_InitEvent(this, nsnull,
(PLHandleEventProc) ::HandlePLEvent,
(PLDestroyEventProc) ::DestroyPLEvent);
eventQueue = aHandler->GetEventQueue();
eventQueue->PostEvent(this);
NS_RELEASE(eventQueue);
}
OnLinkClickEvent::~OnLinkClickEvent()
{
NS_IF_RELEASE(mContent);
NS_IF_RELEASE(mHandler);
NS_IF_RELEASE(mPostDataStream);
NS_IF_RELEASE(mHeadersDataStream);
if (nsnull != mURLSpec) delete mURLSpec;
if (nsnull != mTargetSpec) delete mTargetSpec;
}
//----------------------------------------
NS_IMETHODIMP
nsWebShell::OnLinkClick(nsIContent* aContent,
nsLinkVerb aVerb,
const PRUnichar* aURLSpec,
const PRUnichar* aTargetSpec,
nsIInputStream* aPostDataStream,
nsIInputStream* aHeadersDataStream)
{
OnLinkClickEvent* ev;
nsresult rv = NS_OK;
ev = new OnLinkClickEvent(this, aContent, aVerb, aURLSpec,
aTargetSpec, aPostDataStream, aHeadersDataStream);
if (nsnull == ev) {
rv = NS_ERROR_OUT_OF_MEMORY;
}
return rv;
}
nsIEventQueue* nsWebShell::GetEventQueue(void)
{
NS_PRECONDITION(nsnull != mThreadEventQueue, "EventQueue for thread is null");
NS_ADDREF(mThreadEventQueue);
return mThreadEventQueue;
}
void
nsWebShell::HandleLinkClickEvent(nsIContent *aContent,
nsLinkVerb aVerb,
const PRUnichar* aURLSpec,
const PRUnichar* aTargetSpec,
nsIInputStream* aPostDataStream,
nsIInputStream* aHeadersDataStream)
{
nsCAutoString target; target.AssignWithConversion(aTargetSpec);
switch(aVerb) {
case eLinkVerb_New:
target = "_blank";
// Fall into replace case
case eLinkVerb_Undefined:
// Fall through, this seems like the most reasonable action
case eLinkVerb_Replace:
{
// for now, just hack the verb to be view-link-clicked
// and down in the load document code we'll detect this and
// set the correct uri loader command
nsCOMPtr<nsIURI> uri;
NS_NewURI(getter_AddRefs(uri), nsLiteralString(aURLSpec), nsnull);
// No URI object? This may indicate the URLspec is for an
// unrecognized protocol. Embedders might still be interested
// in handling the click, so we fire a notification before
// throwing the click away.
if (!uri && NS_SUCCEEDED(EnsureContentListener()))
{
nsCOMPtr<nsIURIContentListener> listener = do_QueryInterface(mContentListener);
nsCAutoString spec; spec.AssignWithConversion(aURLSpec);
PRBool abort = PR_FALSE;
nsresult rv;
uri = do_CreateInstance(kSimpleURICID, &rv);
NS_ASSERTION(NS_SUCCEEDED(rv), "can't create simple uri");
if (NS_SUCCEEDED(rv))
{
rv = uri->SetSpec(spec);
NS_ASSERTION(NS_SUCCEEDED(rv), "spec is invalid");
if (NS_SUCCEEDED(rv))
{
listener->OnStartURIOpen(uri, target, &abort);
}
}
return;
}
#ifdef SH_IN_FRAMES
InternalLoad(uri, mCurrentURI, nsnull, PR_TRUE, PR_FALSE, target, aPostDataStream,
aHeadersDataStream, LOAD_LINK, nsnull);
#else
InternalLoad(uri, mCurrentURI, nsnull, PR_TRUE, target,
aPostDataStream, aHeadersDataStream, LOAD_LINK);
#endif /* SH_IN_FRAMES */
}
break;
case eLinkVerb_Embed:
// XXX TODO Should be similar to the HTML IMG ALT attribute handling
// in NS 4.x
default:
NS_ABORT_IF_FALSE(0,"unexpected link verb");
}
}
NS_IMETHODIMP
nsWebShell::OnOverLink(nsIContent* aContent,
const PRUnichar* aURLSpec,
const PRUnichar* aTargetSpec)
{
nsCOMPtr<nsIWebBrowserChrome> browserChrome(do_GetInterface(mTreeOwner));
if(browserChrome)
browserChrome->SetStatus(nsIWebBrowserChrome::STATUS_LINK, aURLSpec);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetLinkState(const char* aLinkURI, nsLinkState& aState)
{
aState = eLinkState_Unvisited;
if(mGlobalHistory)
{
PRInt64 lastVisitDate;
NS_ENSURE_SUCCESS(mGlobalHistory->GetLastVisitDate(aLinkURI,
&lastVisitDate), NS_ERROR_FAILURE);
// a last-visit-date of zero means we've never seen it before; so
// if it's not zero, we must've seen it.
if(!LL_IS_ZERO(lastVisitDate))
aState = eLinkState_Visited;
// XXX how to tell if eLinkState_OutOfDate?
}
return NS_OK;
}
//----------------------------------------------------------------------
NS_IMETHODIMP
nsWebShell::OnStartDocumentLoad(nsIDocumentLoader* loader,
nsIURI* aURL,
const char* aCommand)
{
nsresult rv = NS_ERROR_FAILURE;
if(loader == mDocLoader)
{
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> rootItem;
GetSameTypeRootTreeItem(getter_AddRefs(rootItem));
nsCOMPtr<nsIDocShell> rootDocShell(do_QueryInterface(rootItem));
if(rootDocShell)
rootDocShell->GetDocLoaderObserver(getter_AddRefs(dlObserver));
}
else
dlObserver = do_QueryInterface(mDocLoaderObserver); // we need this to addref
/*
* Fire the OnStartDocumentLoad of the webshell observer
*/
if(mContainer && dlObserver)
dlObserver->OnStartDocumentLoad(mDocLoader, aURL, aCommand);
}
return rv;
}
NS_IMETHODIMP
nsWebShell::OnEndDocumentLoad(nsIDocumentLoader* loader,
nsIChannel* channel,
nsresult aStatus)
{
if(loader != mDocLoader)
return NS_OK;
nsresult rv = NS_OK;
if(!channel)
return NS_ERROR_NULL_POINTER;
nsCOMPtr<nsIURI> aURL;
NS_ENSURE_SUCCESS(channel->GetURI(getter_AddRefs(aURL)), NS_ERROR_FAILURE);
// clean up reload state for meta charset
if(eCharsetReloadRequested == mCharsetReloadState)
mCharsetReloadState = eCharsetReloadStopOrigional;
else
mCharsetReloadState = eCharsetReloadInit;
// Clear the LSHE reference in docshell to indicate document loading
// is done one way or another.
LSHE = nsnull;
/* one of many safeguards that prevent death and destruction if
someone is so very very rude as to bring this window down
during this load handler. */
nsCOMPtr<nsIWebShell> kungFuDeathGrip(this);
// Notify the ContentViewer that the Document has finished loading...
if (!mEODForCurrentDocument && mContentViewer) {
mContentViewer->LoadComplete(aStatus);
}
mEODForCurrentDocument = PR_TRUE;
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> rootItem;
GetSameTypeRootTreeItem(getter_AddRefs(rootItem));
nsCOMPtr<nsIDocShell> rootDocShell(do_QueryInterface(rootItem));
if(rootDocShell)
rootDocShell->GetDocLoaderObserver(getter_AddRefs(dlObserver));
}
else
dlObserver = do_QueryInterface(mDocLoaderObserver); // we need this to addref
/*
* Fire the OnEndDocumentLoad of the DocLoaderobserver
*/
if(dlObserver && aURL)
dlObserver->OnEndDocumentLoad(mDocLoader, channel, aStatus);
if(mDocLoader == loader && NS_FAILED(aStatus))
{
nsXPIDLCString host;
nsresult hostResult = NS_ERROR_FAILURE;
if (aURL) {
hostResult = aURL->GetHost(getter_Copies(host));
}
if (NS_SUCCEEDED(hostResult) && host)
{
CBufDescriptor buf((const char *)host, PR_TRUE, PL_strlen(host) + 1);
nsCAutoString hostStr(buf);
PRInt32 dotLoc = hostStr.FindChar('.');
nsXPIDLCString scheme;
aURL->GetScheme(getter_Copies(scheme));
PRUint32 schemeLen = PL_strlen((const char*)scheme);
CBufDescriptor schemeBuf((const char*)scheme, PR_TRUE, schemeLen+1, schemeLen);
nsCAutoString schemeStr(schemeBuf);
if(aStatus == NS_ERROR_UNKNOWN_HOST ||
aStatus == NS_ERROR_CONNECTION_REFUSED ||
aStatus == NS_ERROR_NET_TIMEOUT)
{
PRBool keywordsEnabled = PR_FALSE;
if(mPrefs)
{
NS_ENSURE_SUCCESS(mPrefs->GetBoolPref("keyword.enabled", &keywordsEnabled),
NS_ERROR_FAILURE);
}
// we should only perform a keyword search under the following conditions:
// (0) Pref keyword.enabled is true
// (1) the url scheme is http (or https)
// (2) the url does not have a protocol scheme
// If we don't enforce such a policy, then we end up doing keyword searchs on urls
// we don't intend like imap, file, mailbox, etc. This could lead to a security
// problem where we send data to the keyword server that we shouldn't be.
// Someone needs to clean up keywords in general so we can determine on a per url basis
// if we want keywords enabled...this is just a bandaid...
static const char httpSchemeName[] = "http";
if (keywordsEnabled) {
if (!schemeStr.IsEmpty() && ((schemeStr.Find(httpSchemeName)) != 0))
keywordsEnabled = PR_FALSE;
}
if(keywordsEnabled && (-1 == dotLoc))
{
// only send non-qualified hosts to the keyword server
nsAutoString keywordSpec; keywordSpec.AssignWithConversion("keyword:");
keywordSpec.Append(NS_ConvertUTF8toUCS2(host));
return LoadURI(keywordSpec.GetUnicode(), LOAD_FLAGS_NONE);
} // end keywordsEnabled
}
// Doc failed to load because the host was not found.
if(aStatus == NS_ERROR_UNKNOWN_HOST)
{
// Try our www.*.com trick.
nsCAutoString retryHost;
if(schemeStr.Find("http") == 0)
{
if(-1 == dotLoc)
{
retryHost = "www.";
retryHost += hostStr;
retryHost += ".com";
}
else
{
PRInt32 hostLen = hostStr.Length();
if(((hostLen - dotLoc) == 3) || ((hostLen - dotLoc) == 4))
{
retryHost = "www.";
retryHost += hostStr;
}
}
}
if(!retryHost.IsEmpty())
{
NS_ENSURE_SUCCESS(aURL->SetHost(retryHost.GetBuffer()),
NS_ERROR_FAILURE);
nsXPIDLCString aSpec;
NS_ENSURE_SUCCESS(aURL->GetSpec(getter_Copies(aSpec)),
NS_ERROR_FAILURE);
// reload the url
return LoadURI(NS_ConvertASCIItoUCS2(aSpec).GetUnicode(), LOAD_FLAGS_NONE);
} // retry
// throw a DNS failure dialog
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("dnsNotFound").GetUnicode(),
getter_Copies(messageStr)), NS_ERROR_FAILURE);
if (host) {
PRUnichar *msg = nsTextFormatter::smprintf(messageStr, (const char*)host);
if (!msg) return NS_ERROR_OUT_OF_MEMORY;
prompter->Alert(nsnull, msg);
nsTextFormatter::smprintf_free(msg);
}
}
else if(aStatus == NS_ERROR_CONNECTION_REFUSED)
{// Doc failed to load because we couldn't connect to the server.
// throw a connection failure dialog
PRInt32 port = -1;
NS_ENSURE_SUCCESS(aURL->GetPort(&port), NS_ERROR_FAILURE);
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("connectionFailure").GetUnicode(),
getter_Copies(messageStr)), NS_ERROR_FAILURE);
// build up the host:port string.
nsCAutoString combo(host);
if (port > 0) {
combo.Append(':');
combo.AppendInt(port);
}
PRUnichar *msg = nsTextFormatter::smprintf(messageStr, combo.GetBuffer());
if (!msg) return NS_ERROR_OUT_OF_MEMORY;
prompter->Alert(nsnull, msg);
nsTextFormatter::smprintf_free(msg);
}
else if(aStatus == NS_ERROR_NET_TIMEOUT)
{// Doc failed to load because the socket function timed out.
// throw a timeout dialog
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("netTimeout").GetUnicode(),
getter_Copies(messageStr)), NS_ERROR_FAILURE);
PRUnichar *msg = nsTextFormatter::smprintf(messageStr, (const char*)host);
if (!msg) return NS_ERROR_OUT_OF_MEMORY;
prompter->Alert(nsnull, msg);
nsTextFormatter::smprintf_free(msg);
} // end NS_ERROR_NET_TIMEOUT
} // if we have a host
} // end mDocLoader == loader
return rv;
}
NS_IMETHODIMP
nsWebShell::OnStartURLLoad(nsIDocumentLoader* loader,
nsIChannel* channel)
{
/*
*Fire the OnStartDocumentLoad of the webshell observer
*/
if ((nsnull != mContainer) && (nsnull != mDocLoaderObserver))
{
mDocLoaderObserver->OnStartURLLoad(mDocLoader, channel);
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::OnProgressURLLoad(nsIDocumentLoader* loader,
nsIChannel* channel,
PRUint32 aProgress,
PRUint32 aProgressMax)
{
/*
*Fire the OnStartDocumentLoad of the webshell observer and container...
*/
if ((nsnull != mContainer) && (nsnull != mDocLoaderObserver))
{
mDocLoaderObserver->OnProgressURLLoad(mDocLoader, channel, aProgress, aProgressMax);
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::OnStatusURLLoad(nsIDocumentLoader* loader,
nsIChannel* channel,
nsString& aMsg)
{
/*
*Fire the OnStartDocumentLoad of the webshell observer and container...
*/
if ((nsnull != mContainer) && (nsnull != mDocLoaderObserver))
{
mDocLoaderObserver->OnStatusURLLoad(mDocLoader, channel, aMsg);
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::OnEndURLLoad(nsIDocumentLoader* loader,
nsIChannel* channel,
nsresult aStatus)
{
#if 0
const char* spec;
aURL->GetSpec(&spec);
printf("nsWebShell::OnEndURLLoad:%p: loader=%p url=%s status=%d\n", this, loader, spec, aStatus);
#endif
/*
*Fire the OnEndDocumentLoad of the webshell observer
*/
if ((nsnull != mContainer) && (nsnull != mDocLoaderObserver))
{
mDocLoaderObserver->OnEndURLLoad(mDocLoader, channel, aStatus);
}
return NS_OK;
}
//----------------------------------------------------
NS_IMETHODIMP
nsWebShell::CanCutSelection(PRBool* aResult)
{
nsresult rv = NS_OK;
if (nsnull == aResult) {
rv = NS_ERROR_NULL_POINTER;
} else {
*aResult = PR_FALSE;
}
return rv;
}
NS_IMETHODIMP
nsWebShell::CanCopySelection(PRBool* aResult)
{
nsresult rv = NS_OK;
if (nsnull == aResult) {
rv = NS_ERROR_NULL_POINTER;
} else {
*aResult = PR_FALSE;
}
return rv;
}
NS_IMETHODIMP
nsWebShell::CanPasteSelection(PRBool* aResult)
{
nsresult rv = NS_OK;
if (nsnull == aResult) {
rv = NS_ERROR_NULL_POINTER;
} else {
*aResult = PR_FALSE;
}
return rv;
}
NS_IMETHODIMP
nsWebShell::CutSelection(void)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsWebShell::CopySelection(void)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsWebShell::PasteSelection(void)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsWebShell::SelectAll(void)
{
nsresult rv;
nsCOMPtr<nsIDocumentViewer> docViewer;
rv = mContentViewer->QueryInterface(NS_GET_IID(nsIDocumentViewer),
getter_AddRefs(docViewer));
if (NS_FAILED(rv) || !docViewer) return rv;
nsCOMPtr<nsIPresShell> presShell;
rv = docViewer->GetPresShell(*getter_AddRefs(presShell));
if (NS_FAILED(rv) || !presShell) return rv;
nsCOMPtr<nsISelectionController> selCon = do_QueryInterface(presShell);
if (NS_FAILED(rv) || !selCon) return rv;
nsCOMPtr<nsISelection> selection;
rv = selCon->GetSelection(nsISelectionController::SELECTION_NORMAL, getter_AddRefs(selection));
if (NS_FAILED(rv) || !selection) return rv;
// Get the document object
nsCOMPtr<nsIDocument> doc;
rv = docViewer->GetDocument(*getter_AddRefs(doc));
if (NS_FAILED(rv) || !doc) return rv;
nsCOMPtr<nsIDOMHTMLDocument> htmldoc;
rv = doc->QueryInterface(NS_GET_IID(nsIDOMHTMLDocument), (void**)&htmldoc);
if (NS_FAILED(rv) || !htmldoc) return rv;
nsCOMPtr<nsIDOMHTMLElement>bodyElement;
rv = htmldoc->GetBody(getter_AddRefs(bodyElement));
if (NS_FAILED(rv) || !bodyElement) return rv;
nsCOMPtr<nsIDOMNode>bodyNode = do_QueryInterface(bodyElement);
if (!bodyNode) return NS_ERROR_NO_INTERFACE;
#if 0
rv = selection->Collapse(bodyNode, 0);
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIDOMRange>range;
rv = selection->GetRangeAt(0, getter_AddRefs(range));
if (NS_FAILED(rv) || !range) return rv;
#endif
rv = selection->RemoveAllRanges();
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIDOMRange> range;
rv = nsComponentManager::CreateInstance(kCDOMRangeCID, nsnull,
NS_GET_IID(nsIDOMRange),
getter_AddRefs(range));
rv = range->SelectNodeContents(bodyNode);
if (NS_FAILED(rv)) return rv;
rv = selection->AddRange(range);
return rv;
}
NS_IMETHODIMP
nsWebShell::SelectNone(void)
{
return NS_ERROR_FAILURE;
}
//----------------------------------------------------
NS_IMETHODIMP
nsWebShell::FindNext(const PRUnichar * aSearchStr, PRBool aMatchCase, PRBool aSearchDown, PRBool &aIsFound)
{
return NS_ERROR_FAILURE;
}
//*****************************************************************************
// nsWebShell::nsIBaseWindow
//*****************************************************************************
NS_IMETHODIMP nsWebShell::Create()
{
// Cache the PL_EventQueue of the current UI thread...
//
// Since this call must be made on the UI thread, we know the Event Queue
// will be associated with the current thread...
//
nsCOMPtr<nsIEventQueueService> eventService(do_GetService(kEventQueueServiceCID));
NS_ENSURE_TRUE(eventService, NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(eventService->GetThreadEventQueue(NS_CURRENT_THREAD,
&mThreadEventQueue), NS_ERROR_FAILURE);
WEB_TRACE(WEB_TRACE_CALLS,
("nsWebShell::Init: this=%p", this));
// HACK....force the uri loader to give us a load cookie for this webshell...then get it's
// doc loader and store it...as more of the docshell lands, we'll be able to get rid
// of this hack...
nsCOMPtr<nsIURILoader> uriLoader = do_GetService(NS_URI_LOADER_CONTRACTID);
uriLoader->GetDocumentLoaderForContext(NS_STATIC_CAST( nsISupports*, (nsIWebShell *) this), &mDocLoader);
// Set the webshell as the default IContentViewerContainer for the loader...
mDocLoader->SetContainer(NS_STATIC_CAST(nsIContentViewerContainer*, (nsIWebShell*)this));
//Register ourselves as an observer for the new doc loader
mDocLoader->AddObserver((nsIDocumentLoaderObserver*)this);
return nsDocShell::Create();
}
NS_IMETHODIMP nsWebShell::Destroy()
{
nsresult rv = NS_OK;
//Fire unload event before we blow anything away.
rv = FireUnloadEvent();
nsDocShell::Destroy();
SetContainer(nsnull);
return NS_OK;
}
NS_IMETHODIMP nsWebShell::SetPositionAndSize(PRInt32 x, PRInt32 y, PRInt32 cx,
PRInt32 cy, PRBool fRepaint)
{
mBounds.SetRect(x, y, cx, cy);
return nsDocShell::SetPositionAndSize(x, y, cx, cy, fRepaint);
}
NS_IMETHODIMP nsWebShell::GetPositionAndSize(PRInt32* x, PRInt32* y,
PRInt32* cx, PRInt32* cy)
{
if(x)
*x = mBounds.x;
if(y)
*y = mBounds.y;
if(cx)
*cx = mBounds.width;
if(cy)
*cy = mBounds.height;
return NS_OK;
}
#ifdef DEBUG
unsigned long nsWebShell::gNumberOfWebShells = 0;
#endif
Ссылка в новой задаче Показать git blame Копировать постоянную ссылку