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fune/layout/base/nsDocumentViewer.cpp
shanjian%netscape.com fd1c7b2e6c #162239 POST document could not inherit charset from previous page if the previous charset is from autodetection. 
r=ftang, darin, sr=jst
added PrevDocCharset to markupViewer, and pass around previous document charset.
This charset is later used to load POST document.
2002-08-26 20:13:31 +00:00

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/* -*- 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):
* Dan Rosen <dr@netscape.com>
* Roland Mainz <roland.mainz@informatik.med.uni-giessen.de>
*
*
* 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 "nscore.h"
#include "nsCOMPtr.h"
#include "nsCRT.h"
#include "nsString.h"
#include "nsReadableUtils.h"
#include "nsISupports.h"
#include "nsIContent.h"
#include "nsIContentViewerContainer.h"
#include "nsIDocumentViewer.h"
#include "nsIDOMWindowInternal.h"
#include "nsIDocumentViewerPrint.h"
#include "nsIDocument.h"
#include "nsIPresContext.h"
#include "nsIPresShell.h"
#include "nsIStyleSet.h"
#include "nsIStyleSheet.h"
#include "nsICSSStyleSheet.h"
#include "nsIFrame.h"
#include "nsIScriptGlobalObjectOwner.h"
#include "nsIScriptGlobalObject.h"
#include "nsILinkHandler.h"
#include "nsIDOMDocument.h"
#include "nsISelectionListener.h"
#include "nsISelectionPrivate.h"
#include "nsIDOMHTMLDocument.h"
#include "nsIDOMNSHTMLDocument.h"
#include "nsIDOMHTMLCollection.h"
#include "nsIDOMHTMLElement.h"
#include "nsIDOMRange.h"
#include "nsContentCID.h"
#include "nsLayoutCID.h"
#include "nsGenericHTMLElement.h"
#include "nsViewsCID.h"
#include "nsWidgetsCID.h"
#include "nsIDeviceContext.h"
#include "nsIDeviceContextSpec.h"
#include "nsIDeviceContextSpecFactory.h"
#include "nsIViewManager.h"
#include "nsIView.h"
#include "nsIPref.h"
#include "nsIPageSequenceFrame.h"
#include "nsIURL.h"
#include "nsIWebShell.h"
#include "nsIContentViewerEdit.h"
#include "nsIContentViewerFile.h"
#include "nsIMarkupDocumentViewer.h"
#include "nsIInterfaceRequestor.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIDocShellTreeItem.h"
#include "nsIDocShellTreeNode.h"
#include "nsIDocShellTreeOwner.h"
#include "nsIDocShell.h"
#include "nsIBaseWindow.h"
#include "nsIFrameDebug.h"
#include "nsILayoutHistoryState.h"
#include "nsLayoutAtoms.h"
#include "nsIFrameManager.h"
#include "nsIParser.h"
#include "nsIPrintContext.h"
#include "nsGUIEvent.h"
#include "nsHTMLReflowState.h"
#include "nsIDOMHTMLAnchorElement.h"
#include "nsIDOMHTMLAreaElement.h"
#include "nsIDOMHTMLLinkElement.h"
#include "nsIDOMHTMLImageElement.h"
#include "nsIDOMHTMLFrameSetElement.h"
#include "nsIXULDocument.h" // Temporary code for Bug 136185
#include "nsIChromeRegistry.h"
#include "nsIClipboardHelper.h"
#include "nsIEventQueueService.h"
#include "nsIEventQueue.h"
#include "nsPIDOMWindow.h"
#include "nsIFocusController.h"
#include "nsIScrollableView.h"
#include "nsIScrollable.h"
#include "nsITimelineService.h"
#include "nsGfxCIID.h"
// Printing
#include "nsIWebBrowserPrint.h"
//--------------------------
// Printing Include
//---------------------------
#ifdef NS_PRINTING
#include "nsPrintEngine.h"
// Print Options
#include "nsIPrintSettings.h"
#include "nsIPrintSettingsService.h"
#include "nsIPrintOptions.h"
#include "nsIServiceManager.h"
#include "nsHTMLAtoms.h" // XXX until atoms get factored into nsLayoutAtoms
#include "nsISimpleEnumerator.h"
#include "nsISupportsPrimitives.h"
static NS_DEFINE_IID(kPrinterEnumeratorCID, NS_PRINTER_ENUMERATOR_CID);
// PrintOptions is now implemented by PrintSettingsService
static const char sPrintSettingsServiceContractID[] = "@mozilla.org/gfx/printsettings-service;1";
static const char sPrintOptionsContractID[] = "@mozilla.org/gfx/printsettings-service;1";
// Printing Events
#include "nsIEventQueue.h"
#include "nsIEventQueueService.h"
#include "nsPrintPreviewListener.h"
#include "nsIDOMHTMLFrameElement.h"
#include "nsIDOMHTMLIFrameElement.h"
#include "nsIDOMHTMLObjectElement.h"
// Print Preview
#include "nsIPrintPreviewContext.h"
#include "imgIContainer.h" // image animation mode constants
// Print Progress
#include "nsIPrintProgress.h"
#include "nsIPrintProgressParams.h"
// Print error dialog
#include "nsIPrompt.h"
#include "nsIWindowWatcher.h"
#include "nsIStringBundle.h"
// Printing
#include "nsPrintEngine.h"
#include "nsPagePrintTimer.h"
#endif // NS_PRINTING
// FrameSet
#include "nsINodeInfo.h"
#include "nsIDocument.h"
#include "nsHTMLAtoms.h"
#include "nsIHTMLContent.h"
#include "nsINameSpaceManager.h"
#include "nsIWebShell.h"
//focus
#include "nsIDOMEventReceiver.h"
#include "nsIDOMFocusListener.h"
#include "nsISelectionController.h"
#ifdef IBMBIDI
#include "nsBidiUtils.h"
#endif
static NS_DEFINE_CID(kPresShellCID, NS_PRESSHELL_CID);
static NS_DEFINE_CID(kGalleyContextCID, NS_GALLEYCONTEXT_CID);
static NS_DEFINE_CID(kPrintContextCID, NS_PRINTCONTEXT_CID);
static NS_DEFINE_CID(kStyleSetCID, NS_STYLESET_CID);
#ifdef NS_DEBUG
#undef NOISY_VIEWER
#else
#undef NOISY_VIEWER
#endif
//-----------------------------------------------------
// PR LOGGING
#ifdef MOZ_LOGGING
#define FORCE_PR_LOG /* Allow logging in the release build */
#endif
#include "prlog.h"
#ifdef PR_LOGGING
#ifdef NS_DEBUG
// PR_LOGGING is force to always be on (even in release builds)
// but we only want some of it on,
//#define EXTENDED_DEBUG_PRINTING
#endif
#define DUMP_LAYOUT_LEVEL 9 // this turns on the dumping of each doucment's layout info
static PRLogModuleInfo * kPrintingLogMod = PR_NewLogModule("printing");
#define PR_PL(_p1) PR_LOG(kPrintingLogMod, PR_LOG_DEBUG, _p1);
#ifdef EXTENDED_DEBUG_PRINTING
static PRUint32 gDumpFileNameCnt = 0;
static PRUint32 gDumpLOFileNameCnt = 0;
#endif
#define PRT_YESNO(_p) ((_p)?"YES":"NO")
static const char * gFrameTypesStr[] = {"eDoc", "eFrame", "eIFrame", "eFrameSet"};
static const char * gPrintFrameTypeStr[] = {"kNoFrames", "kFramesAsIs", "kSelectedFrame", "kEachFrameSep"};
static const char * gFrameHowToEnableStr[] = {"kFrameEnableNone", "kFrameEnableAll", "kFrameEnableAsIsAndEach"};
static const char * gPrintRangeStr[] = {"kRangeAllPages", "kRangeSpecifiedPageRange", "kRangeSelection", "kRangeFocusFrame"};
#else
#define PRT_YESNO(_p)
#define PR_PL(_p1)
#endif
//-----------------------------------------------------
class DocumentViewerImpl;
// New PrintPreview
static NS_DEFINE_CID(kPrintPreviewContextCID, NS_PRINT_PREVIEW_CONTEXT_CID);
// a small delegate class used to avoid circular references
#ifdef XP_MAC
#pragma mark ** nsDocViewerSelectionListener **
#endif
class nsDocViewerSelectionListener : public nsISelectionListener
{
public:
// nsISupports interface...
NS_DECL_ISUPPORTS
// nsISelectionListerner interface
NS_DECL_NSISELECTIONLISTENER
nsDocViewerSelectionListener()
: mDocViewer(NULL)
, mGotSelectionState(PR_FALSE)
, mSelectionWasCollapsed(PR_FALSE)
{
NS_INIT_REFCNT();
}
virtual ~nsDocViewerSelectionListener() {}
nsresult Init(DocumentViewerImpl *aDocViewer);
protected:
DocumentViewerImpl* mDocViewer;
PRPackedBool mGotSelectionState;
PRPackedBool mSelectionWasCollapsed;
};
/** editor Implementation of the FocusListener interface
*/
class nsDocViewerFocusListener : public nsIDOMFocusListener
{
public:
/** default constructor
*/
nsDocViewerFocusListener();
/** default destructor
*/
virtual ~nsDocViewerFocusListener();
/*interfaces for addref and release and queryinterface*/
NS_DECL_ISUPPORTS
/*BEGIN implementations of focus event handler interface*/
NS_IMETHOD HandleEvent(nsIDOMEvent* aEvent);
NS_IMETHOD Focus(nsIDOMEvent* aEvent);
NS_IMETHOD Blur(nsIDOMEvent* aEvent);
/*END implementations of focus event handler interface*/
nsresult Init(DocumentViewerImpl *aDocViewer);
private:
DocumentViewerImpl* mDocViewer;
};
#ifdef XP_MAC
#pragma mark ** DocumentViewerImpl **
#endif
//-------------------------------------------------------------
class DocumentViewerImpl : public nsIDocumentViewer,
public nsIContentViewerEdit,
public nsIContentViewerFile,
public nsIMarkupDocumentViewer,
public nsIWebBrowserPrint,
public nsIDocumentViewerPrint
{
friend class nsDocViewerSelectionListener;
friend class nsPagePrintTimer;
friend class nsPrintEngine;
public:
DocumentViewerImpl();
DocumentViewerImpl(nsIPresContext* aPresContext);
NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW
// nsISupports interface...
NS_DECL_ISUPPORTS
// nsIContentViewer interface...
NS_DECL_NSICONTENTVIEWER
// nsIDocumentViewer interface...
NS_IMETHOD SetUAStyleSheet(nsIStyleSheet* aUAStyleSheet);
NS_IMETHOD GetDocument(nsIDocument*& aResult);
NS_IMETHOD GetPresShell(nsIPresShell*& aResult);
NS_IMETHOD GetPresContext(nsIPresContext*& aResult);
NS_IMETHOD CreateDocumentViewerUsing(nsIPresContext* aPresContext,
nsIDocumentViewer*& aResult);
// nsIContentViewerEdit
NS_DECL_NSICONTENTVIEWEREDIT
// nsIContentViewerFile
NS_DECL_NSICONTENTVIEWERFILE
// nsIMarkupDocumentViewer
NS_DECL_NSIMARKUPDOCUMENTVIEWER
// nsIWebBrowserPrint
NS_DECL_NSIWEBBROWSERPRINT
typedef void (*CallChildFunc)(nsIMarkupDocumentViewer* aViewer,
void* aClosure);
nsresult CallChildren(CallChildFunc aFunc, void* aClosure);
// nsIDocumentViewerPrint Printing Methods
virtual nsresult CreateStyleSet(nsIDocument* aDocument, nsIStyleSet** aStyleSet);
virtual nsresult GetDocumentSelection(nsISelection **aSelection, nsIPresShell * aPresShell = nsnull);
virtual void IncrementDestroyRefCount();
virtual void ReturnToGalleyPresentation();
virtual void InstallNewPresentation();
virtual void OnDonePrinting();
virtual nsresult FindFrameSetWithIID(nsIContent * aParentContent, const nsIID& aIID);
virtual void GetPresShellAndRootContent(nsIWebShell * aWebShell, nsIPresShell** aPresShell, nsIContent** aContent);
// Printing Helpers
PRBool GetIsPrinting();
void SetIsPrinting(PRBool aIsPrinting);
PRBool GetIsPrintPreview();
void SetIsPrintPreview(PRBool aIsPrintPreview);
PRBool GetIsCreatingPrintPreview();
void SetIsCreatingPrintPreview(PRBool aIsCreatingPrintPreview);
// Helpers (also used by nsPrintEngine)
PRBool IsWebShellAFrameSet(nsIWebShell * aParent);
protected:
virtual ~DocumentViewerImpl();
private:
void ForceRefresh(void);
nsresult MakeWindow(nsIWidget* aParentWidget,
const nsRect& aBounds);
nsresult InitInternal(nsIWidget* aParentWidget,
nsIDeviceContext* aDeviceContext,
const nsRect& aBounds,
PRBool aDoCreation);
nsresult InitPresentationStuff(PRBool aDoInitialReflow);
nsresult GetPopupNode(nsIDOMNode** aNode);
nsresult GetPopupLinkNode(nsIDOMNode** aNode);
nsresult GetPopupImageNode(nsIDOMNode** aNode);
void PrepareToStartLoad(void);
nsresult SyncParentSubDocMap();
protected:
// IMPORTANT: The ownership implicit in the following member
// variables has been explicitly checked and set using nsCOMPtr
// for owning pointers and raw COM interface pointers for weak
// (ie, non owning) references. If you add any members to this
// class, please make the ownership explicit (pinkerton, scc).
nsISupports* mContainer; // [WEAK] it owns me!
nsCOMPtr<nsIDeviceContext> mDeviceContext; // ??? can't hurt, but...
// the following six items are explicitly in this order
// so they will be destroyed in the reverse order (pinkerton, scc)
nsCOMPtr<nsIDocument> mDocument;
nsCOMPtr<nsIWidget> mWindow; // ??? should we really own it?
nsCOMPtr<nsIViewManager> mViewManager;
nsCOMPtr<nsIPresContext> mPresContext;
nsCOMPtr<nsIPresShell> mPresShell;
nsCOMPtr<nsIStyleSheet> mUAStyleSheet;
nsCOMPtr<nsISelectionListener> mSelectionListener;
nsCOMPtr<nsIDOMFocusListener> mFocusListener;
nsCOMPtr<nsIContentViewer> mPreviousViewer;
PRBool mEnableRendering;
PRBool mStopped;
PRBool mLoaded;
PRInt16 mNumURLStarts;
PRInt16 mDestroyRefCount; // a second "refcount" for the document viewer's "destroy"
nsIWidget* mParentWidget; // purposely won't be ref counted
#ifdef NS_PRINTING
nsPrintEngine* mPrintEngine;
#if NS_PRINT_PREVIEW
// These data member support delayed printing when the document is loading
nsCOMPtr<nsIPrintSettings> mCachedPrintSettings;
nsCOMPtr<nsIWebProgressListener> mCachedPrintWebProgressListner;
PRPackedBool mPrintIsPending;
PRPackedBool mPrintDocIsFullyLoaded;
#endif // NS_PRINT_PREVIEW
#ifdef NS_DEBUG
FILE* mDebugFile;
#endif // NS_DEBUG
#endif // NS_PRINTING
// document management data
// these items are specific to markup documents (html and xml)
// may consider splitting these out into a subclass
PRPackedBool mAllowPlugins;
PRPackedBool mIsSticky;
/* character set member data */
nsString mDefaultCharacterSet;
nsString mHintCharset;
PRInt32 mHintCharsetSource;
nsString mForceCharacterSet;
nsString mPrevDocCharacterSet;
};
//------------------------------------------------------------------
// DocumentViewerImpl
//------------------------------------------------------------------
// Class IDs
static NS_DEFINE_CID(kViewManagerCID, NS_VIEW_MANAGER_CID);
static NS_DEFINE_CID(kWidgetCID, NS_CHILD_CID);
static NS_DEFINE_CID(kViewCID, NS_VIEW_CID);
//------------------------------------------------------------------
nsresult
NS_NewDocumentViewer(nsIDocumentViewer** aResult)
{
*aResult = new DocumentViewerImpl();
if (!*aResult) {
return NS_ERROR_OUT_OF_MEMORY;
}
NS_ADDREF(*aResult);
return NS_OK;
}
// Note: operator new zeros our memory
DocumentViewerImpl::DocumentViewerImpl()
: mIsSticky(PR_TRUE)
{
NS_INIT_ISUPPORTS();
PrepareToStartLoad();
mParentWidget = nsnull;
}
void DocumentViewerImpl::PrepareToStartLoad()
{
mEnableRendering = PR_TRUE;
mStopped = PR_FALSE;
mLoaded = PR_FALSE;
#ifdef NS_PRINTING
mPrintIsPending = PR_FALSE;
mPrintDocIsFullyLoaded = PR_FALSE;
// Make sure we have destroyed it and cleared the data member
if (mPrintEngine) {
mPrintEngine->Destroy();
NS_RELEASE(mPrintEngine);
}
#ifdef NS_PRINT_PREVIEW
SetIsPrintPreview(PR_FALSE);
#endif
#ifdef NS_DEBUG
mDebugFile = nsnull;
#endif
#endif // NS_PRINTING
}
DocumentViewerImpl::DocumentViewerImpl(nsIPresContext* aPresContext)
: mPresContext(aPresContext), mAllowPlugins(PR_TRUE), mIsSticky(PR_TRUE)
{
NS_INIT_ISUPPORTS();
mHintCharsetSource = kCharsetUninitialized;
PrepareToStartLoad();
}
NS_IMPL_ISUPPORTS7(DocumentViewerImpl,
nsIContentViewer,
nsIDocumentViewer,
nsIMarkupDocumentViewer,
nsIContentViewerFile,
nsIContentViewerEdit,
nsIWebBrowserPrint,
nsIDocumentViewerPrint)
DocumentViewerImpl::~DocumentViewerImpl()
{
NS_ASSERTION(!mDocument, "User did not call nsIContentViewer::Close");
if (mDocument) {
Close();
}
NS_ASSERTION(!mPresShell, "User did not call nsIContentViewer::Destroy");
if (mPresShell) {
Destroy();
}
// XXX(?) Revoke pending invalidate events
// clear weak references before we go away
if (mPresContext) {
mPresContext->SetContainer(nsnull);
mPresContext->SetLinkHandler(nsnull);
}
}
/*
* This method is called by the Document Loader once a document has
* been created for a particular data stream... The content viewer
* must cache this document for later use when Init(...) is called.
*
* This method is also called when an out of band document.write() happens.
* In that case, the document passed in is the same as the previous document.
*/
NS_IMETHODIMP
DocumentViewerImpl::LoadStart(nsISupports *aDoc)
{
#ifdef NOISY_VIEWER
printf("DocumentViewerImpl::LoadStart\n");
#endif
nsresult rv;
if (!mDocument) {
mDocument = do_QueryInterface(aDoc, &rv);
}
else if (mDocument == aDoc) {
// Reset the document viewer's state back to what it was
// when the document load started.
PrepareToStartLoad();
}
return rv;
}
nsresult
DocumentViewerImpl::SyncParentSubDocMap()
{
nsCOMPtr<nsIDocShellTreeItem> item(do_QueryInterface(mContainer));
nsCOMPtr<nsIDOMWindowInternal> win(do_GetInterface(item));
nsCOMPtr<nsPIDOMWindow> pwin(do_QueryInterface(win));
nsCOMPtr<nsIContent> content;
if (mDocument && pwin) {
nsCOMPtr<nsIDOMElement> frame_element;
pwin->GetFrameElementInternal(getter_AddRefs(frame_element));
content = do_QueryInterface(frame_element);
}
if (content) {
nsCOMPtr<nsIDocShellTreeItem> parent;
item->GetParent(getter_AddRefs(parent));
nsCOMPtr<nsIDOMWindow> parent_win(do_GetInterface(parent));
if (parent_win) {
nsCOMPtr<nsIDOMDocument> dom_doc;
parent_win->GetDocument(getter_AddRefs(dom_doc));
nsCOMPtr<nsIDocument> parent_doc(do_QueryInterface(dom_doc));
if (parent_doc) {
return parent_doc->SetSubDocumentFor(content, mDocument);
}
}
}
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::SetContainer(nsISupports* aContainer)
{
mContainer = aContainer;
if (mPresContext) {
mPresContext->SetContainer(aContainer);
}
// We're loading a new document into the window where this document
// viewer lives, sync the parent document's frame element -> sub
// document map
return SyncParentSubDocMap();
}
NS_IMETHODIMP
DocumentViewerImpl::GetContainer(nsISupports** aResult)
{
NS_ENSURE_ARG_POINTER(aResult);
*aResult = mContainer;
NS_IF_ADDREF(*aResult);
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::Init(nsIWidget* aParentWidget,
nsIDeviceContext* aDeviceContext,
const nsRect& aBounds)
{
return InitInternal(aParentWidget, aDeviceContext, aBounds, PR_TRUE);
}
nsresult
DocumentViewerImpl::InitPresentationStuff(PRBool aDoInitialReflow)
{
// Create the style set...
nsCOMPtr<nsIStyleSet> styleSet;
nsresult rv = CreateStyleSet(mDocument, getter_AddRefs(styleSet));
NS_ENSURE_SUCCESS(rv, rv);
// Now make the shell for the document
rv = mDocument->CreateShell(mPresContext, mViewManager, styleSet,
getter_AddRefs(mPresShell));
NS_ENSURE_SUCCESS(rv, rv);
mPresShell->BeginObservingDocument();
// Initialize our view manager
nsRect bounds;
mWindow->GetBounds(bounds);
float p2t;
mPresContext->GetPixelsToTwips(&p2t);
nscoord width = NSIntPixelsToTwips(bounds.width, p2t);
nscoord height = NSIntPixelsToTwips(bounds.height, p2t);
mViewManager->DisableRefresh();
mViewManager->SetWindowDimensions(width, height);
// Setup default view manager background color
// This may be overridden by the docshell with the background color
// for the last document loaded into the docshell
nscolor bgcolor = NS_RGB(0, 0, 0);
mPresContext->GetDefaultBackgroundColor(&bgcolor);
mViewManager->SetDefaultBackgroundColor(bgcolor);
if (aDoInitialReflow) {
nsCOMPtr<nsIScrollable> sc = do_QueryInterface(mContainer);
if (sc) {
nsCOMPtr<nsIContent> root;
mDocument->GetRootContent(getter_AddRefs(root));
nsCOMPtr<nsIDOMHTMLFrameSetElement> frameset(do_QueryInterface(root));
if (frameset) {
// If this is a frameset (i.e. not a frame) then we never want
// scrollbars on it, the scrollbars go inside the frames
// inside the frameset...
sc->SetCurrentScrollbarPreferences(nsIScrollable::ScrollOrientation_Y,
NS_STYLE_OVERFLOW_HIDDEN);
sc->SetCurrentScrollbarPreferences(nsIScrollable::ScrollOrientation_X,
NS_STYLE_OVERFLOW_HIDDEN);
} else {
sc->ResetScrollbarPreferences();
}
}
// Initial reflow
mPresShell->InitialReflow(width, height);
// Now trigger a refresh
if (mEnableRendering) {
mViewManager->EnableRefresh(NS_VMREFRESH_IMMEDIATE);
}
}
// now register ourselves as a selection listener, so that we get
// called when the selection changes in the window
nsDocViewerSelectionListener *selectionListener =
new nsDocViewerSelectionListener();
NS_ENSURE_TRUE(selectionListener, NS_ERROR_OUT_OF_MEMORY);
selectionListener->Init(this);
// mSelectionListener is a owning reference
mSelectionListener = selectionListener;
nsCOMPtr<nsISelection> selection;
rv = GetDocumentSelection(getter_AddRefs(selection));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsISelectionPrivate> selPrivate(do_QueryInterface(selection));
rv = selPrivate->AddSelectionListener(mSelectionListener);
if (NS_FAILED(rv))
return rv;
// Save old listener so we can unregister it
nsCOMPtr<nsIDOMFocusListener> mOldFocusListener = mFocusListener;
// focus listener
//
// now register ourselves as a focus listener, so that we get called
// when the focus changes in the window
nsDocViewerFocusListener *focusListener;
NS_NEWXPCOM(focusListener, nsDocViewerFocusListener);
NS_ENSURE_TRUE(focusListener, NS_ERROR_OUT_OF_MEMORY);
focusListener->Init(this);
// mFocusListener is a strong reference
mFocusListener = focusListener;
// get the DOM event receiver
nsCOMPtr<nsIDOMEventReceiver> erP(do_QueryInterface(mDocument));
NS_WARN_IF_FALSE(erP, "No event receiver in document!");
if (erP) {
rv = erP->AddEventListenerByIID(mFocusListener,
NS_GET_IID(nsIDOMFocusListener));
NS_ASSERTION(NS_SUCCEEDED(rv), "failed to register focus listener");
if (mOldFocusListener) {
rv = erP->RemoveEventListenerByIID(mOldFocusListener,
NS_GET_IID(nsIDOMFocusListener));
NS_ASSERTION(NS_SUCCEEDED(rv), "failed to remove focus listener");
}
}
return NS_OK;
}
//-----------------------------------------------
// This method can be used to initial the "presentation"
// The aDoCreation indicates whether it should create
// all the new objects or just initialize the existing ones
nsresult
DocumentViewerImpl::InitInternal(nsIWidget* aParentWidget,
nsIDeviceContext* aDeviceContext,
const nsRect& aBounds,
PRBool aDoCreation)
{
mParentWidget = aParentWidget; // not ref counted
nsresult rv = NS_OK;
NS_ENSURE_TRUE(mDocument, NS_ERROR_NULL_POINTER);
mDeviceContext = dont_QueryInterface(aDeviceContext);
#if defined(NS_PRINTING) && defined(NS_PRINT_PREVIEW)
// Clear PrintPreview Alternate Device
if (mDeviceContext) {
mDeviceContext->SetAltDevice(nsnull);
mDeviceContext->SetCanonicalPixelScale(1.0);
}
#endif
PRBool makeCX = PR_FALSE;
if (aDoCreation) {
if (aParentWidget && !mPresContext) {
// Create presentation context
if (GetIsCreatingPrintPreview()) {
mPresContext = do_CreateInstance(kPrintPreviewContextCID, &rv);
} else {
mPresContext = do_CreateInstance(kGalleyContextCID, &rv);
}
if (NS_FAILED(rv))
return rv;
mPresContext->Init(aDeviceContext);
#if defined(NS_PRINTING) && defined(NS_PRINT_PREVIEW)
makeCX = !GetIsPrintPreview(); // needs to be true except when we are already in PP
#else
makeCX = PR_TRUE;
#endif
}
}
if (aDoCreation && mPresContext) {
// Create the ViewManager and Root View...
// We must do this before we tell the script global object about
// this new document since doing that will cause us to re-enter
// into nsHTMLFrameInnerFrame code through reflows caused by
// FlushPendingNotifications() calls down the road...
rv = MakeWindow(aParentWidget, aBounds);
NS_ENSURE_SUCCESS(rv, rv);
Hide();
}
nsCOMPtr<nsIInterfaceRequestor> requestor(do_QueryInterface(mContainer));
if (requestor) {
if (mPresContext) {
nsCOMPtr<nsILinkHandler> linkHandler;
requestor->GetInterface(NS_GET_IID(nsILinkHandler),
getter_AddRefs(linkHandler));
mPresContext->SetContainer(mContainer);
mPresContext->SetLinkHandler(linkHandler);
}
if (!GetIsPrintPreview()) {
// Set script-context-owner in the document
nsCOMPtr<nsIScriptGlobalObject> global;
requestor->GetInterface(NS_GET_IID(nsIScriptGlobalObject),
getter_AddRefs(global));
if (global) {
mDocument->SetScriptGlobalObject(global);
nsCOMPtr<nsIDOMDocument> domdoc(do_QueryInterface(mDocument));
if (domdoc) {
global->SetNewDocument(domdoc, PR_TRUE, PR_TRUE);
}
}
}
}
if (aDoCreation && mPresContext) {
// The ViewManager and Root View was created above (in
// MakeWindow())...
rv = InitPresentationStuff(!makeCX);
}
return rv;
}
//
// LoadComplete(aStatus)
//
// aStatus - The status returned from loading the document.
//
// This method is called by the container when the document has been
// completely loaded.
//
NS_IMETHODIMP
DocumentViewerImpl::LoadComplete(nsresult aStatus)
{
nsresult rv = NS_OK;
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
nsCOMPtr<nsIScriptGlobalObject> global;
// First, get the script global object from the document...
rv = mDocument->GetScriptGlobalObject(getter_AddRefs(global));
// Fail if no ScriptGlobalObject is available...
NS_ENSURE_TRUE(global, NS_ERROR_NULL_POINTER);
mLoaded = PR_TRUE;
/* We need to protect ourself against auto-destruction in case the
window is closed while processing the OnLoad event. See bug
http://bugzilla.mozilla.org/show_bug.cgi?id=78445 for more
explanation.
*/
nsCOMPtr<nsIDocumentViewer> kungFuDeathGrip(this);
// Now, fire either an OnLoad or OnError event to the document...
if(NS_SUCCEEDED(aStatus)) {
nsEventStatus status = nsEventStatus_eIgnore;
nsEvent event;
event.eventStructType = NS_EVENT;
event.message = NS_PAGE_LOAD;
rv = global->HandleDOMEvent(mPresContext, &event, nsnull,
NS_EVENT_FLAG_INIT, &status);
#ifdef MOZ_TIMELINE
// if navigator.xul's load is complete, the main nav window is visible
// mark that point.
if (mDocument) {
//printf("DEBUG: getting uri from document (%p)\n", mDocument.get());
nsCOMPtr<nsIURI> uri;
mDocument->GetDocumentURL(getter_AddRefs(uri));
if (uri) {
//printf("DEBUG: getting spec fro uri (%p)\n", uri.get());
nsCAutoString spec;
uri->GetSpec(spec);
if (!strcmp(spec.get(), "chrome://navigator/content/navigator.xul")) {
NS_TIMELINE_MARK("Navigator Window visible now");
}
}
}
#endif /* MOZ_TIMELINE */
} else {
// XXX: Should fire error event to the document...
}
// Now that the document has loaded, we can tell the presshell
// to unsuppress painting.
if (mPresShell && !mStopped) {
mPresShell->UnsuppressPainting();
}
#ifdef NS_PRINTING
// Check to see if someone tried to print during the load
if (mPrintIsPending) {
mPrintIsPending = PR_FALSE;
mPrintDocIsFullyLoaded = PR_TRUE;
Print(mCachedPrintSettings, mCachedPrintWebProgressListner);
mCachedPrintSettings = nsnull;
mCachedPrintWebProgressListner = nsnull;
}
#endif
return rv;
}
NS_IMETHODIMP
DocumentViewerImpl::Unload()
{
nsresult rv;
if (!mDocument) {
return NS_ERROR_NULL_POINTER;
}
// First, get the script global object from the document...
nsCOMPtr<nsIScriptGlobalObject> global;
rv = mDocument->GetScriptGlobalObject(getter_AddRefs(global));
if (!global) {
// Fail if no ScriptGlobalObject is available...
NS_ASSERTION(0, "nsIScriptGlobalObject not set for document!");
return NS_ERROR_NULL_POINTER;
}
// Now, fire an Unload event to the document...
nsEventStatus status = nsEventStatus_eIgnore;
nsEvent event;
event.eventStructType = NS_EVENT;
event.message = NS_PAGE_UNLOAD;
rv = global->HandleDOMEvent(mPresContext, &event, nsnull,
NS_EVENT_FLAG_INIT, &status);
return rv;
}
NS_IMETHODIMP
DocumentViewerImpl::Close()
{
// All callers are supposed to call close to break circular
// references. If we do this stuff in the destructor, the
// destructor might never be called (especially if we're being
// used from JS.
// Close is also needed to disable scripts during paint suppression,
// since we transfer the existing global object to the new document
// that is loaded. In the future, the global object may become a proxy
// for an object that can be switched in and out so that we don't need
// to disable scripts during paint suppression.
if (mDocument) {
#if defined(NS_PRINTING) && defined(NS_PRINT_PREVIEW)
// Turn scripting back on
// after PrintPreview had turned it off
if (GetIsPrintPreview() && mPrintEngine) {
mPrintEngine->TurnScriptingOn(PR_TRUE);
}
#endif
// Before we clear the script global object, clear the undisplayed
// content map, since XBL content can be destroyed by the
// |SetDocument(null, ...)| triggered by calling
// |SetScriptGlobalObject(null)|.
if (mPresShell) {
nsCOMPtr<nsIFrameManager> frameManager;
mPresShell->GetFrameManager(getter_AddRefs(frameManager));
if (frameManager)
frameManager->ClearUndisplayedContentMap();
}
// Break global object circular reference on the document created
// in the DocViewer Init
nsCOMPtr<nsIScriptGlobalObject> globalObject;
mDocument->GetScriptGlobalObject(getter_AddRefs(globalObject));
if (globalObject) {
globalObject->SetNewDocument(nsnull, PR_TRUE, PR_TRUE);
}
// out of band cleanup of webshell
mDocument->SetScriptGlobalObject(nsnull);
if (mFocusListener) {
// get the DOM event receiver
nsCOMPtr<nsIDOMEventReceiver> erP(do_QueryInterface(mDocument));
NS_WARN_IF_FALSE(erP, "No event receiver in document!");
if (erP) {
erP->RemoveEventListenerByIID(mFocusListener,
NS_GET_IID(nsIDOMFocusListener));
}
}
}
mDocument = nsnull;
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::Destroy()
{
#ifdef NS_PRINTING
// Here is where we check to see if the docment was still being prepared
// for printing when it was asked to be destroy from someone externally
// This usually happens if the document is unloaded while the user is in the Print Dialog
//
// So we flip the bool to remember that the document is going away
// and we can clean up and abort later after returning from the Print Dialog
if (mPrintEngine) {
if (mPrintEngine->CheckBeforeDestroy()) {
return NS_OK;
}
}
#endif
// Don't let the document get unloaded while we are printing
// this could happen if we hit the back button during printing
if (mDestroyRefCount != 0) {
--mDestroyRefCount;
return NS_OK;
}
// All callers are supposed to call destroy to break circular
// references. If we do this stuff in the destructor, the
// destructor might never be called (especially if we're being
// used from JS.
#ifdef NS_PRINTING
if (mPrintEngine) {
mPrintEngine->Destroy();
NS_RELEASE(mPrintEngine);
}
#endif
// Avoid leaking the old viewer.
if (mPreviousViewer) {
mPreviousViewer->Destroy();
mPreviousViewer = nsnull;
}
if (mDeviceContext) {
mDeviceContext->FlushFontCache();
mDeviceContext = nsnull;
}
if (mPresShell) {
// Break circular reference (or something)
mPresShell->EndObservingDocument();
nsCOMPtr<nsISelection> selection;
GetDocumentSelection(getter_AddRefs(selection));
nsCOMPtr<nsISelectionPrivate> selPrivate(do_QueryInterface(selection));
if (selPrivate && mSelectionListener)
selPrivate->RemoveSelectionListener(mSelectionListener);
mPresShell->Destroy();
mPresShell = nsnull;
}
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::Stop(void)
{
NS_ASSERTION(mDocument, "Stop called too early or too late");
if (mDocument) {
mDocument->StopDocumentLoad();
}
mStopped = PR_TRUE;
if (!mLoaded && mPresShell) {
// Well, we might as well paint what we have so far.
mPresShell->UnsuppressPainting();
}
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::GetDOMDocument(nsIDOMDocument **aResult)
{
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
return CallQueryInterface(mDocument.get(), aResult);
}
NS_IMETHODIMP
DocumentViewerImpl::SetDOMDocument(nsIDOMDocument *aDocument)
{
// Assumptions:
//
// 1) this document viewer has been initialized with a call to Init().
// 2) the stylesheets associated with the document have been added
// to the document.
// XXX Right now, this method assumes that the layout of the current
// document hasn't started yet. More cleanup will probably be
// necessary to make this method work for the case when layout *has*
// occurred for the current document.
// That work can happen when and if it is needed.
nsresult rv;
if (!aDocument)
return NS_ERROR_NULL_POINTER;
nsCOMPtr<nsIDocument> newDoc = do_QueryInterface(aDocument, &rv);
if (NS_FAILED(rv)) return rv;
// 0) Replace the old document with the new one
mDocument = newDoc;
// 1) Set the script global object on the new document
nsCOMPtr<nsIScriptGlobalObject> global(do_GetInterface(mContainer));
if (global) {
mDocument->SetScriptGlobalObject(global);
global->SetNewDocument(aDocument, PR_TRUE, PR_TRUE);
rv = SyncParentSubDocMap();
NS_ENSURE_SUCCESS(rv, rv);
}
// 2) Replace the current pres shell with a new shell for the new document
if (mPresShell) {
mPresShell->EndObservingDocument();
mPresShell->Destroy();
mPresShell = nsnull;
}
// And if we're already given a prescontext...
if (mPresContext) {
// 3) Create a new style set for the document
nsCOMPtr<nsIStyleSet> styleSet;
rv = CreateStyleSet(mDocument, getter_AddRefs(styleSet));
if (NS_FAILED(rv))
return rv;
rv = newDoc->CreateShell(mPresContext, mViewManager, styleSet,
getter_AddRefs(mPresShell));
NS_ENSURE_SUCCESS(rv, rv);
mPresShell->BeginObservingDocument();
// 4) Register the focus listener on the new document
nsCOMPtr<nsIDOMEventReceiver> erP = do_QueryInterface(mDocument, &rv);
NS_WARN_IF_FALSE(erP, "No event receiver in document!");
if (erP) {
rv = erP->AddEventListenerByIID(mFocusListener,
NS_GET_IID(nsIDOMFocusListener));
NS_ASSERTION(NS_SUCCEEDED(rv), "failed to register focus listener");
}
}
return rv;
}
NS_IMETHODIMP
DocumentViewerImpl::SetUAStyleSheet(nsIStyleSheet* aUAStyleSheet)
{
NS_ASSERTION(aUAStyleSheet, "unexpected null pointer");
if (aUAStyleSheet) {
nsCOMPtr<nsICSSStyleSheet> sheet(do_QueryInterface(aUAStyleSheet));
nsCOMPtr<nsICSSStyleSheet> newSheet;
sheet->Clone(*getter_AddRefs(newSheet));
mUAStyleSheet = newSheet;
}
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::GetDocument(nsIDocument*& aResult)
{
aResult = mDocument;
NS_IF_ADDREF(aResult);
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::GetPresShell(nsIPresShell*& aResult)
{
aResult = mPresShell;
NS_IF_ADDREF(aResult);
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::GetPresContext(nsIPresContext*& aResult)
{
aResult = mPresContext;
NS_IF_ADDREF(aResult);
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::GetBounds(nsRect& aResult)
{
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
NS_PRECONDITION(mWindow, "null window");
if (mWindow) {
mWindow->GetBounds(aResult);
}
else {
aResult.SetRect(0, 0, 0, 0);
}
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::GetPreviousViewer(nsIContentViewer** aViewer)
{
*aViewer = mPreviousViewer;
NS_IF_ADDREF(*aViewer);
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::SetPreviousViewer(nsIContentViewer* aViewer)
{
// NOTE: |Show| sets |mPreviousViewer| to null without calling this
// function.
if (aViewer) {
NS_ASSERTION(!mPreviousViewer,
"can't set previous viewer when there already is one");
// In a multiple chaining situation (which occurs when running a thrashing
// test like i-bench or jrgm's tests with no delay), we can build up a
// whole chain of viewers. In order to avoid this, we always set our previous
// viewer to the MOST previous viewer in the chain, and then dump the intermediate
// link from the chain. This ensures that at most only 2 documents are alive
// and undestroyed at any given time (the one that is showing and the one that
// is loading with painting suppressed).
nsCOMPtr<nsIContentViewer> prevViewer;
aViewer->GetPreviousViewer(getter_AddRefs(prevViewer));
if (prevViewer) {
aViewer->SetPreviousViewer(nsnull);
aViewer->Destroy();
return SetPreviousViewer(prevViewer);
}
}
mPreviousViewer = aViewer;
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::SetBounds(const nsRect& aBounds)
{
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
if (mWindow) {
// Don't have the widget repaint. Layout will generate repaint requests
// during reflow
mWindow->Resize(aBounds.x, aBounds.y, aBounds.width, aBounds.height,
PR_FALSE);
}
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::Move(PRInt32 aX, PRInt32 aY)
{
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
NS_PRECONDITION(mWindow, "null window");
if (mWindow) {
mWindow->Move(aX, aY);
}
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::Show(void)
{
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
// We don't need the previous viewer anymore since we're not
// displaying it.
if (mPreviousViewer) {
// This little dance *may* only be to keep
// PresShell::EndObservingDocument happy, but I'm not sure.
nsCOMPtr<nsIContentViewer> prevViewer(mPreviousViewer);
mPreviousViewer = nsnull;
prevViewer->Destroy();
}
if (mWindow) {
mWindow->Show(PR_TRUE);
}
if (mDocument && !mPresShell && !mWindow) {
nsresult rv;
nsCOMPtr<nsIBaseWindow> base_win(do_QueryInterface(mContainer));
NS_ENSURE_TRUE(base_win, NS_ERROR_UNEXPECTED);
base_win->GetParentWidget(&mParentWidget);
NS_ENSURE_TRUE(mParentWidget, NS_ERROR_UNEXPECTED);
mDeviceContext = dont_AddRef(mParentWidget->GetDeviceContext());
#if defined(NS_PRINTING) && defined(NS_PRINT_PREVIEW)
// Clear PrintPreview Alternate Device
if (mDeviceContext) {
mDeviceContext->SetAltDevice(nsnull);
}
#endif
// Create presentation context
if (GetIsCreatingPrintPreview()) {
NS_ERROR("Whoa, we should not get here!");
return NS_ERROR_UNEXPECTED;
}
mPresContext = do_CreateInstance(kGalleyContextCID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
mPresContext->Init(mDeviceContext);
nsRect tbounds;
mParentWidget->GetBounds(tbounds);
float p2t;
mPresContext->GetPixelsToTwips(&p2t);
tbounds *= p2t;
// Create the view manager
mViewManager = do_CreateInstance(kViewManagerCID);
NS_ENSURE_TRUE(mViewManager, NS_ERROR_NOT_AVAILABLE);
// Initialize the view manager with an offset. This allows the
// viewmanager to manage a coordinate space offset from (0,0)
rv = mViewManager->Init(mDeviceContext);
if (NS_FAILED(rv))
return rv;
rv = mViewManager->SetWindowOffset(tbounds.x, tbounds.y);
if (NS_FAILED(rv))
return rv;
// Reset the bounds offset so the root view is set to 0,0. The
// offset is specified in nsIViewManager::Init above.
// Besides, layout will reset the root view to (0,0) during reflow,
// so changing it to 0,0 eliminates placing the root view in the
// wrong place initially.
tbounds.x = 0;
tbounds.y = 0;
// Create a child window of the parent that is our "root
// view/window" Create a view
nsIView *view = nsnull;
rv = CallCreateInstance(kViewCID, &view);
if (NS_FAILED(rv))
return rv;
rv = view->Init(mViewManager, tbounds, nsnull);
if (NS_FAILED(rv))
return rv;
rv = view->CreateWidget(kWidgetCID, nsnull,
mParentWidget->GetNativeData(NS_NATIVE_WIDGET),
PR_TRUE, PR_FALSE);
if (NS_FAILED(rv))
return rv;
// Setup hierarchical relationship in view manager
mViewManager->SetRootView(view);
view->GetWidget(*getter_AddRefs(mWindow));
if (mPresContext && mContainer) {
nsCOMPtr<nsILinkHandler> linkHandler(do_GetInterface(mContainer));
if (linkHandler) {
mPresContext->SetLinkHandler(linkHandler);
}
mPresContext->SetContainer(mContainer);
}
if (mPresContext) {
Hide();
rv = InitPresentationStuff(PR_TRUE);
}
// If we get here the document load has already started and the
// window is shown because some JS on the page caused it to be
// shown...
mPresShell->UnsuppressPainting();
}
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::Hide(void)
{
PRBool is_in_print_mode = PR_FALSE;
GetDoingPrint(&is_in_print_mode);
if (is_in_print_mode) {
// If we, or one of our parents, is in print mode it means we're
// right now returning from print and the layout frame that was
// created for this document is being destroyed. In such a case we
// ignore the Hide() call.
return NS_OK;
}
GetDoingPrintPreview(&is_in_print_mode);
if (is_in_print_mode) {
// If we, or one of our parents, is in print preview mode it means
// we're right now returning from print preview and the layout
// frame that was created for this document is being destroyed. In
// such a case we ignore the Hide() call.
return NS_OK;
}
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
NS_PRECONDITION(mWindow, "null window");
if (mWindow) {
mWindow->Show(PR_FALSE);
}
if (!mPresShell || GetIsPrintPreview()) {
return NS_OK;
}
// Avoid leaking the old viewer.
if (mPreviousViewer) {
mPreviousViewer->Destroy();
mPreviousViewer = nsnull;
}
if (mIsSticky) {
// This window is sticky, that means that it might be shown again
// and we don't want the presshell n' all that to be thrown away
// just because the window is hidden.
return NS_OK;
}
if (mDeviceContext) {
mDeviceContext->FlushFontCache();
}
// Break circular reference (or something)
mPresShell->EndObservingDocument();
nsCOMPtr<nsISelection> selection;
GetDocumentSelection(getter_AddRefs(selection));
nsCOMPtr<nsISelectionPrivate> selPrivate(do_QueryInterface(selection));
if (selPrivate && mSelectionListener) {
selPrivate->RemoveSelectionListener(mSelectionListener);
}
nsCOMPtr<nsIXULDocument> xul_doc(do_QueryInterface(mDocument));
if (xul_doc) {
xul_doc->OnHide();
}
mPresShell->Destroy();
mPresShell = nsnull;
mPresContext = nsnull;
mViewManager = nsnull;
mWindow = nsnull;
mDeviceContext = nsnull;
mParentWidget = nsnull;
nsCOMPtr<nsIBaseWindow> base_win(do_QueryInterface(mContainer));
if (base_win) {
base_win->SetParentWidget(nsnull);
}
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::SetEnableRendering(PRBool aOn)
{
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
mEnableRendering = aOn;
if (mViewManager) {
if (aOn) {
mViewManager->EnableRefresh(NS_VMREFRESH_IMMEDIATE);
nsIView* view;
mViewManager->GetRootView(view); // views are not refCounted
if (view) {
mViewManager->UpdateView(view, NS_VMREFRESH_IMMEDIATE);
}
}
else {
mViewManager->DisableRefresh();
}
}
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::GetSticky(PRBool *aSticky)
{
*aSticky = mIsSticky;
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::SetSticky(PRBool aSticky)
{
mIsSticky = aSticky;
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::GetEnableRendering(PRBool* aResult)
{
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
NS_PRECONDITION(nsnull != aResult, "null OUT ptr");
if (aResult) {
*aResult = mEnableRendering;
}
return NS_OK;
}
void
DocumentViewerImpl::ForceRefresh()
{
mWindow->Invalidate(PR_TRUE);
}
nsresult
DocumentViewerImpl::CreateStyleSet(nsIDocument* aDocument,
nsIStyleSet** aStyleSet)
{
// this should eventually get expanded to allow for creating
// different sets for different media
nsresult rv;
if (!mUAStyleSheet) {
NS_WARNING("unable to load UA style sheet");
}
rv = CallCreateInstance(kStyleSetCID, aStyleSet);
if (NS_OK == rv) {
PRInt32 index = 0;
aDocument->GetNumberOfStyleSheets(&index);
while (0 < index--) {
nsCOMPtr<nsIStyleSheet> sheet;
aDocument->GetStyleSheetAt(index, getter_AddRefs(sheet));
/*
* GetStyleSheetAt will return all style sheets in the document but
* we're only interested in the ones that are enabled.
*/
PRBool styleEnabled;
sheet->GetEnabled(styleEnabled);
if (styleEnabled) {
(*aStyleSet)->AddDocStyleSheet(sheet, aDocument);
}
}
nsCOMPtr<nsIChromeRegistry> chromeRegistry =
do_GetService("@mozilla.org/chrome/chrome-registry;1");
if (chromeRegistry) {
nsCOMPtr<nsISupportsArray> sheets;
// Now handle the user sheets.
nsCOMPtr<nsIDocShellTreeItem> docShell(do_QueryInterface(mContainer));
PRInt32 shellType;
docShell->GetItemType(&shellType);
PRBool isChrome = (shellType == nsIDocShellTreeItem::typeChrome);
sheets = nsnull;
chromeRegistry->GetUserSheets(isChrome, getter_AddRefs(sheets));
if(sheets){
nsCOMPtr<nsICSSStyleSheet> sheet;
PRUint32 count;
sheets->Count(&count);
for(PRUint32 i=0; i<count; i++) {
sheets->GetElementAt(i, getter_AddRefs(sheet));
(*aStyleSet)->AppendUserStyleSheet(sheet);
}
}
// Append chrome sheets (scrollbars + forms).
nsCOMPtr<nsIDocShell> ds(do_QueryInterface(mContainer));
chromeRegistry->GetAgentSheets(ds, getter_AddRefs(sheets));
if(sheets){
nsCOMPtr<nsICSSStyleSheet> sheet;
PRUint32 count;
sheets->Count(&count);
for(PRUint32 i=0; i<count; i++) {
sheets->GetElementAt(i, getter_AddRefs(sheet));
(*aStyleSet)->AppendAgentStyleSheet(sheet);
}
}
}
if (mUAStyleSheet) {
(*aStyleSet)->AppendAgentStyleSheet(mUAStyleSheet);
}
}
return NS_OK;
}
//---------------------------------------------------------------------
// Note this is also defined in nsPrintEngine
// They can't share it because nsPrintEngine may not be available
// when printing isn't turned on
static nsIPresShell*
GetPresShellFor(nsIDocShell* aDocShell)
{
nsCOMPtr<nsIDOMDocument> domDoc(do_GetInterface(aDocShell));
if (!domDoc) return nsnull;
nsCOMPtr<nsIDocument> doc(do_QueryInterface(domDoc));
if (!doc) return nsnull;
nsIPresShell* shell = nsnull;
doc->GetShellAt(0, &shell);
return shell;
}
//---------------------------------------------------------------------
// This gets ref counted copies of the PresShell and Root Content
// for a given nsIWebShell
void
DocumentViewerImpl::GetPresShellAndRootContent(nsIWebShell * aWebShell,
nsIPresShell** aPresShell,
nsIContent** aContent)
{
NS_ASSERTION(aWebShell, "Pointer is null!");
NS_ASSERTION(aPresShell, "Pointer is null!");
NS_ASSERTION(aContent, "Pointer is null!");
*aContent = nsnull;
*aPresShell = nsnull;
nsCOMPtr<nsIDocShell> docShell(do_QueryInterface(aWebShell));
nsCOMPtr<nsIPresShell> presShell(getter_AddRefs(GetPresShellFor(docShell)));
if (!presShell) return;
nsCOMPtr<nsIDocument> doc;
presShell->GetDocument(getter_AddRefs(doc));
if (!doc) return;
doc->GetRootContent(aContent); // this addrefs
*aPresShell = presShell.get();
NS_ADDREF(*aPresShell);
}
//---------------------------------------------------------------------
nsresult
DocumentViewerImpl::FindFrameSetWithIID(nsIContent * aParentContent,
const nsIID& aIID)
{
PRInt32 numChildren;
aParentContent->ChildCount(numChildren);
// do a breadth search across all siblings
PRInt32 inx;
for (inx=0;inx<numChildren;inx++) {
nsCOMPtr<nsIContent> child;
if (NS_SUCCEEDED(aParentContent->ChildAt(inx, *getter_AddRefs(child))) && child) {
nsCOMPtr<nsISupports> temp;
if (NS_SUCCEEDED(child->QueryInterface(aIID, (void**)getter_AddRefs(temp)))) {
return NS_OK;
}
}
}
return NS_ERROR_FAILURE;
}
//-------------------------------------------------------
PRBool
DocumentViewerImpl::IsWebShellAFrameSet(nsIWebShell * aWebShell)
{
NS_ASSERTION(aWebShell, "Pointer is null!");
PRBool doesContainFrameSet = PR_FALSE;
nsCOMPtr<nsIPresShell> presShell;
nsCOMPtr<nsIContent> rootContent;
GetPresShellAndRootContent(aWebShell, getter_AddRefs(presShell), getter_AddRefs(rootContent));
if (rootContent) {
if (NS_SUCCEEDED(FindFrameSetWithIID(rootContent, NS_GET_IID(nsIDOMHTMLFrameSetElement)))) {
doesContainFrameSet = PR_TRUE;
}
}
return doesContainFrameSet;
}
nsresult
DocumentViewerImpl::MakeWindow(nsIWidget* aParentWidget,
const nsRect& aBounds)
{
nsresult rv;
mViewManager = do_CreateInstance(kViewManagerCID, &rv);
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsIDeviceContext> dx;
mPresContext->GetDeviceContext(getter_AddRefs(dx));
nsRect tbounds = aBounds;
float p2t;
mPresContext->GetPixelsToTwips(&p2t);
tbounds *= p2t;
// Initialize the view manager with an offset. This allows the viewmanager
// to manage a coordinate space offset from (0,0)
rv = mViewManager->Init(dx);
if (NS_FAILED(rv))
return rv;
rv = mViewManager->SetWindowOffset(tbounds.x, tbounds.y);
if (NS_FAILED(rv))
return rv;
// Reset the bounds offset so the root view is set to 0,0. The
// offset is specified in nsIViewManager::Init above.
// Besides, layout will reset the root view to (0,0) during reflow,
// so changing it to 0,0 eliminates placing the root view in the
// wrong place initially.
tbounds.x = 0;
tbounds.y = 0;
// Create a child window of the parent that is our "root view/window"
// Create a view
nsIView *view = nsnull;
rv = CallCreateInstance(kViewCID, &view);
if (NS_FAILED(rv))
return rv;
// if aParentWidget has a view, we'll hook our view manager up to its view tree
void* clientData;
nsIView* containerView = nsnull;
if (NS_SUCCEEDED(aParentWidget->GetClientData(clientData))) {
nsISupports* data = (nsISupports*)clientData;
if (data) {
data->QueryInterface(NS_GET_IID(nsIView), (void **)&containerView);
}
}
if (containerView) {
// see if the containerView has already been hooked into a foreign view manager hierarchy
// if it has, then we have to hook into the hierarchy too otherwise bad things will happen.
nsCOMPtr<nsIViewManager> containerVM;
containerView->GetViewManager(*getter_AddRefs(containerVM));
nsCOMPtr<nsIViewManager> checkVM;
nsIView* pView = containerView;
do {
pView->GetParent(pView);
} while (pView != nsnull
&& NS_SUCCEEDED(pView->GetViewManager(*getter_AddRefs(checkVM))) && checkVM == containerVM);
if (!pView) {
// OK, so the container is not already hooked up into a foreign view manager hierarchy.
// That means we can choose not to hook ourselves up.
//
// If the parent container is a chrome shell, or a frameset, then we won't hook into its view
// tree. This will improve performance a little bit (especially given scrolling/painting perf bugs)
// but is really just for peace of mind. This check can be removed if we want to support fancy
// chrome effects like transparent controls floating over content, transparent Web browsers, and
// things like that, and the perf bugs are fixed.
nsCOMPtr<nsIDocShellTreeItem> container(do_QueryInterface(mContainer));
nsCOMPtr<nsIDocShellTreeItem> parentContainer;
PRInt32 itemType;
if (nsnull == container
|| NS_FAILED(container->GetParent(getter_AddRefs(parentContainer)))
|| nsnull == parentContainer
|| NS_FAILED(parentContainer->GetItemType(&itemType))
|| itemType != nsIDocShellTreeItem::typeContent) {
containerView = nsnull;
} else {
nsCOMPtr<nsIWebShell> webShell(do_QueryInterface(parentContainer));
if (nsnull == webShell || IsWebShellAFrameSet(webShell)) {
containerView = nsnull;
}
}
}
}
rv = view->Init(mViewManager, tbounds, containerView);
if (NS_FAILED(rv))
return rv;
// pass in a native widget to be the parent widget ONLY if the view hierarchy will stand alone.
// otherwise the view will find its own parent widget and "do the right thing" to
// establish a parent/child widget relationship
rv = view->CreateWidget(kWidgetCID, nsnull,
containerView != nsnull ? nsnull : aParentWidget->GetNativeData(NS_NATIVE_WIDGET),
PR_TRUE, PR_FALSE);
if (rv != NS_OK)
return rv;
// Setup hierarchical relationship in view manager
mViewManager->SetRootView(view);
view->GetWidget(*getter_AddRefs(mWindow));
// This SetFocus is necessary so the Arrow Key and Page Key events
// go to the scrolled view as soon as the Window is created instead of going to
// the browser window (this enables keyboard scrolling of the document)
// mWindow->SetFocus();
return rv;
}
nsresult DocumentViewerImpl::GetDocumentSelection(nsISelection **aSelection,
nsIPresShell *aPresShell)
{
if (!aPresShell) {
if (!mPresShell) {
return NS_ERROR_NOT_INITIALIZED;
}
aPresShell = mPresShell;
}
if (!aSelection)
return NS_ERROR_NULL_POINTER;
if (!aPresShell)
return NS_ERROR_NULL_POINTER;
nsCOMPtr<nsISelectionController> selcon;
selcon = do_QueryInterface(aPresShell);
if (selcon)
return selcon->GetSelection(nsISelectionController::SELECTION_NORMAL,
aSelection);
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
DocumentViewerImpl::CreateDocumentViewerUsing(nsIPresContext* aPresContext,
nsIDocumentViewer*& aResult)
{
if (!mDocument) {
// XXX better error
return NS_ERROR_NULL_POINTER;
}
if (!aPresContext) {
return NS_ERROR_NULL_POINTER;
}
// Create new viewer
DocumentViewerImpl* viewer = new DocumentViewerImpl(aPresContext);
if (!viewer) {
return NS_ERROR_OUT_OF_MEMORY;
}
NS_ADDREF(viewer);
// XXX make sure the ua style sheet is used (for now; need to be
// able to specify an alternate)
viewer->SetUAStyleSheet(mUAStyleSheet);
// Bind the new viewer to the old document
nsresult rv = viewer->LoadStart(mDocument);
aResult = viewer;
return rv;
}
#ifdef XP_MAC
#pragma mark -
#endif
/* ========================================================================================
* nsIContentViewerEdit
* ======================================================================================== */
NS_IMETHODIMP DocumentViewerImpl::Search()
{
NS_ASSERTION(0, "NOT IMPLEMENTED");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP DocumentViewerImpl::GetSearchable(PRBool *aSearchable)
{
NS_ASSERTION(0, "NOT IMPLEMENTED");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP DocumentViewerImpl::ClearSelection()
{
nsresult rv;
nsCOMPtr<nsISelection> selection;
rv = GetDocumentSelection(getter_AddRefs(selection));
if (NS_FAILED(rv)) return rv;
return selection->CollapseToStart();
}
NS_IMETHODIMP DocumentViewerImpl::SelectAll()
{
// XXX this is a temporary implementation copied from nsWebShell
// for now. I think nsDocument and friends should have some helper
// functions to make this easier.
nsCOMPtr<nsISelection> selection;
nsresult rv;
rv = GetDocumentSelection(getter_AddRefs(selection));
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIDOMHTMLDocument> htmldoc = do_QueryInterface(mDocument);
nsCOMPtr<nsIDOMNode> bodyNode;
if (htmldoc)
{
nsCOMPtr<nsIDOMHTMLElement>bodyElement;
rv = htmldoc->GetBody(getter_AddRefs(bodyElement));
if (NS_FAILED(rv) || !bodyElement) return rv;
bodyNode = do_QueryInterface(bodyElement);
}
else if (mDocument)
{
nsCOMPtr<nsIContent> rootContent;
mDocument->GetRootContent(getter_AddRefs(rootContent));
bodyNode = do_QueryInterface(rootContent);
}
if (!bodyNode) return NS_ERROR_FAILURE;
rv = selection->RemoveAllRanges();
if (NS_FAILED(rv)) return rv;
rv = selection->SelectAllChildren(bodyNode);
return rv;
}
NS_IMETHODIMP DocumentViewerImpl::CopySelection()
{
NS_ENSURE_TRUE(mPresShell, NS_ERROR_NOT_INITIALIZED);
return mPresShell->DoCopy();
}
NS_IMETHODIMP DocumentViewerImpl::CopyLinkLocation()
{
NS_ENSURE_TRUE(mPresShell, NS_ERROR_NOT_INITIALIZED);
nsCOMPtr<nsIDOMNode> node;
nsresult rv = GetPopupLinkNode(getter_AddRefs(node));
// make noise if we're not in a link
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_TRUE(node, NS_ERROR_FAILURE);
nsAutoString locationText;
rv = mPresShell->GetLinkLocation(node, locationText);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIClipboardHelper> clipboard(do_GetService("@mozilla.org/widget/clipboardhelper;1", &rv));
NS_ENSURE_SUCCESS(rv, rv);
// copy the href onto the clipboard
return clipboard->CopyString(locationText);
}
NS_IMETHODIMP DocumentViewerImpl::CopyImageLocation()
{
NS_ENSURE_TRUE(mPresShell, NS_ERROR_NOT_INITIALIZED);
nsCOMPtr<nsIDOMNode> node;
nsresult rv = GetPopupImageNode(getter_AddRefs(node));
// make noise if we're not in an image
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_TRUE(node, NS_ERROR_FAILURE);
nsAutoString locationText;
rv = mPresShell->GetLinkLocation(node, locationText);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIClipboardHelper> clipboard(do_GetService("@mozilla.org/widget/clipboardhelper;1", &rv));
NS_ENSURE_SUCCESS(rv, rv);
// copy the href onto the clipboard
return clipboard->CopyString(locationText);
}
NS_IMETHODIMP DocumentViewerImpl::CopyImageContents()
{
NS_ENSURE_TRUE(mPresShell, NS_ERROR_NOT_INITIALIZED);
nsCOMPtr<nsIDOMNode> node;
nsresult rv = GetPopupImageNode(getter_AddRefs(node));
// make noise if we're not in an image
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_TRUE(node, NS_ERROR_FAILURE);
return mPresShell->DoCopyImageContents(node);
}
NS_IMETHODIMP DocumentViewerImpl::GetCopyable(PRBool *aCopyable)
{
nsCOMPtr<nsISelection> selection;
nsresult rv;
rv = GetDocumentSelection(getter_AddRefs(selection));
if (NS_FAILED(rv)) return rv;
PRBool isCollapsed;
selection->GetIsCollapsed(&isCollapsed);
*aCopyable = !isCollapsed;
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::CutSelection()
{
NS_ASSERTION(0, "NOT IMPLEMENTED");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP DocumentViewerImpl::GetCutable(PRBool *aCutable)
{
*aCutable = PR_FALSE; // mm, will this ever be called for an editable document?
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::Paste()
{
NS_ASSERTION(0, "NOT IMPLEMENTED");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP DocumentViewerImpl::GetPasteable(PRBool *aPasteable)
{
*aPasteable = PR_FALSE;
return NS_OK;
}
#ifdef XP_MAC
#pragma mark -
#endif
static NS_DEFINE_IID(kDeviceContextSpecFactoryCID, NS_DEVICE_CONTEXT_SPEC_FACTORY_CID);
/* ========================================================================================
* nsIContentViewerFile
* ======================================================================================== */
/** ---------------------------------------------------
* See documentation above in the nsIContentViewerfile class definition
* @update 01/24/00 dwc
*/
NS_IMETHODIMP
DocumentViewerImpl::Print(PRBool aSilent,
FILE * aDebugFile,
nsIPrintSettings* aPrintSettings)
{
#ifdef NS_PRINTING
nsCOMPtr<nsIPrintSettings> printSettings;
#ifdef NS_DEBUG
nsresult rv = NS_ERROR_FAILURE;
mDebugFile = aDebugFile;
// if they don't pass in a PrintSettings, then make one
// it will have all the default values
printSettings = aPrintSettings;
nsCOMPtr<nsIPrintOptions> printOptions = do_GetService(sPrintOptionsContractID, &rv);
if (NS_SUCCEEDED(rv)) {
// if they don't pass in a PrintSettings, then make one
if (printSettings == nsnull) {
printOptions->CreatePrintSettings(getter_AddRefs(printSettings));
}
NS_ASSERTION(printSettings, "You can't PrintPreview without a PrintSettings!");
}
if (printSettings) printSettings->SetPrintSilent(aSilent);
if (printSettings) printSettings->SetShowPrintProgress(PR_FALSE);
#endif
return Print(printSettings, nsnull);
#else
return NS_ERROR_FAILURE;
#endif
}
// nsIContentViewerFile interface
NS_IMETHODIMP
DocumentViewerImpl::GetPrintable(PRBool *aPrintable)
{
NS_ENSURE_ARG_POINTER(aPrintable);
*aPrintable = !GetIsPrinting();
return NS_OK;
}
#ifdef XP_MAC
#pragma mark -
#endif
//*****************************************************************************
// nsIMarkupDocumentViewer
//*****************************************************************************
NS_IMETHODIMP DocumentViewerImpl::ScrollToNode(nsIDOMNode* aNode)
{
NS_ENSURE_ARG(aNode);
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
nsCOMPtr<nsIPresShell> presShell;
NS_ENSURE_SUCCESS(GetPresShell(*(getter_AddRefs(presShell))), NS_ERROR_FAILURE);
// Get the nsIContent interface, because that's what we need to
// get the primary frame
nsCOMPtr<nsIContent> content(do_QueryInterface(aNode));
NS_ENSURE_TRUE(content, NS_ERROR_FAILURE);
// Get the primary frame
nsIFrame* frame; // Remember Frames aren't ref-counted. They are in their
// own special little world.
NS_ENSURE_SUCCESS(presShell->GetPrimaryFrameFor(content, &frame),
NS_ERROR_FAILURE);
// tell the pres shell to scroll to the frame
NS_ENSURE_SUCCESS(presShell->ScrollFrameIntoView(frame,
NS_PRESSHELL_SCROLL_TOP,
NS_PRESSHELL_SCROLL_ANYWHERE),
NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::GetAllowPlugins(PRBool* aAllowPlugins)
{
NS_ENSURE_ARG_POINTER(aAllowPlugins);
*aAllowPlugins = mAllowPlugins;
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::SetAllowPlugins(PRBool aAllowPlugins)
{
mAllowPlugins = aAllowPlugins;
return NS_OK;
}
nsresult
DocumentViewerImpl::CallChildren(CallChildFunc aFunc, void* aClosure)
{
nsCOMPtr<nsIDocShellTreeNode> docShellNode(do_QueryInterface(mContainer));
if (docShellNode)
{
PRInt32 i;
PRInt32 n;
docShellNode->GetChildCount(&n);
for (i=0; i < n; i++)
{
nsCOMPtr<nsIDocShellTreeItem> child;
docShellNode->GetChildAt(i, getter_AddRefs(child));
nsCOMPtr<nsIDocShell> childAsShell(do_QueryInterface(child));
NS_ASSERTION(childAsShell, "null child in docshell");
if (childAsShell)
{
nsCOMPtr<nsIContentViewer> childCV;
childAsShell->GetContentViewer(getter_AddRefs(childCV));
if (childCV)
{
nsCOMPtr<nsIMarkupDocumentViewer> markupCV = do_QueryInterface(childCV);
if (markupCV) {
(*aFunc)(markupCV, aClosure);
}
}
}
}
}
return NS_OK;
}
struct TextZoomInfo
{
float mTextZoom;
};
static void
SetChildTextZoom(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
struct TextZoomInfo* textZoomInfo = (struct TextZoomInfo*) aClosure;
aChild->SetTextZoom(textZoomInfo->mTextZoom);
}
NS_IMETHODIMP DocumentViewerImpl::SetTextZoom(float aTextZoom)
{
if (mDeviceContext) {
mDeviceContext->SetTextZoom(aTextZoom);
if (mPresContext) {
mPresContext->ClearStyleDataAndReflow();
}
}
// now set the text zoom on all children of mContainer
struct TextZoomInfo textZoomInfo = { aTextZoom };
return CallChildren(SetChildTextZoom, &textZoomInfo);
}
NS_IMETHODIMP DocumentViewerImpl::GetTextZoom(float* aTextZoom)
{
NS_ENSURE_ARG_POINTER(aTextZoom);
if (mDeviceContext) {
return mDeviceContext->GetTextZoom(*aTextZoom);
}
*aTextZoom = 1.0;
return NS_OK;
}
// XXX: SEMANTIC CHANGE!
// returns a copy of the string. Caller is responsible for freeing result
// using Recycle(aDefaultCharacterSet)
NS_IMETHODIMP DocumentViewerImpl::GetDefaultCharacterSet(PRUnichar** aDefaultCharacterSet)
{
NS_ENSURE_ARG_POINTER(aDefaultCharacterSet);
NS_ENSURE_STATE(mContainer);
if (mDefaultCharacterSet.IsEmpty())
{
nsXPIDLString defCharset;
nsCOMPtr<nsIWebShell> webShell;
webShell = do_QueryInterface(mContainer);
if (webShell)
{
nsCOMPtr<nsIPref> prefs(do_GetService(NS_PREF_CONTRACTID));
if (prefs)
prefs->GetLocalizedUnicharPref("intl.charset.default", getter_Copies(defCharset));
}
if (!defCharset.IsEmpty())
mDefaultCharacterSet.Assign(defCharset.get());
else
mDefaultCharacterSet.Assign(NS_LITERAL_STRING("ISO-8859-1"));
}
*aDefaultCharacterSet = ToNewUnicode(mDefaultCharacterSet);
return NS_OK;
}
static void
SetChildDefaultCharacterSet(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
aChild->SetDefaultCharacterSet((PRUnichar*) aClosure);
}
NS_IMETHODIMP DocumentViewerImpl::SetDefaultCharacterSet(const PRUnichar* aDefaultCharacterSet)
{
mDefaultCharacterSet = aDefaultCharacterSet; // this does a copy of aDefaultCharacterSet
// now set the default char set on all children of mContainer
return CallChildren(SetChildDefaultCharacterSet,
(void*) aDefaultCharacterSet);
}
// XXX: SEMANTIC CHANGE!
// returns a copy of the string. Caller is responsible for freeing result
// using Recycle(aForceCharacterSet)
NS_IMETHODIMP DocumentViewerImpl::GetForceCharacterSet(PRUnichar** aForceCharacterSet)
{
NS_ENSURE_ARG_POINTER(aForceCharacterSet);
nsAutoString emptyStr;
if (mForceCharacterSet.Equals(emptyStr)) {
*aForceCharacterSet = nsnull;
}
else {
*aForceCharacterSet = ToNewUnicode(mForceCharacterSet);
}
return NS_OK;
}
static void
SetChildForceCharacterSet(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
aChild->SetForceCharacterSet((PRUnichar*) aClosure);
}
NS_IMETHODIMP DocumentViewerImpl::SetForceCharacterSet(const PRUnichar* aForceCharacterSet)
{
mForceCharacterSet = aForceCharacterSet;
// now set the force char set on all children of mContainer
return CallChildren(SetChildForceCharacterSet, (void*) aForceCharacterSet);
}
// XXX: SEMANTIC CHANGE!
// returns a copy of the string. Caller is responsible for freeing result
// using Recycle(aHintCharacterSet)
NS_IMETHODIMP DocumentViewerImpl::GetHintCharacterSet(PRUnichar * *aHintCharacterSet)
{
NS_ENSURE_ARG_POINTER(aHintCharacterSet);
if(kCharsetUninitialized == mHintCharsetSource) {
*aHintCharacterSet = nsnull;
} else {
*aHintCharacterSet = ToNewUnicode(mHintCharset);
// this can't possibly be right. we can't set a value just because somebody got a related value!
//mHintCharsetSource = kCharsetUninitialized;
}
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::GetHintCharacterSetSource(PRInt32 *aHintCharacterSetSource)
{
NS_ENSURE_ARG_POINTER(aHintCharacterSetSource);
*aHintCharacterSetSource = mHintCharsetSource;
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::GetPrevDocCharacterSet(PRUnichar * *aPrevDocCharacterSet)
{
NS_ENSURE_ARG_POINTER(aPrevDocCharacterSet);
*aPrevDocCharacterSet = ToNewUnicode(mPrevDocCharacterSet);
return NS_OK;
}
static void
SetChildPrevDocCharacterSet(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
aChild->SetPrevDocCharacterSet((PRUnichar*) aClosure);
}
NS_IMETHODIMP DocumentViewerImpl::SetPrevDocCharacterSet(const PRUnichar* aPrevDocCharacterSet)
{
mPrevDocCharacterSet = aPrevDocCharacterSet;
return CallChildren(SetChildPrevDocCharacterSet,
(void*) aPrevDocCharacterSet);
}
static void
SetChildHintCharacterSetSource(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
aChild->SetHintCharacterSetSource(NS_PTR_TO_INT32(aClosure));
}
NS_IMETHODIMP DocumentViewerImpl::SetHintCharacterSetSource(PRInt32 aHintCharacterSetSource)
{
mHintCharsetSource = aHintCharacterSetSource;
// now set the hint char set source on all children of mContainer
return CallChildren(SetChildHintCharacterSetSource,
(void*) aHintCharacterSetSource);
}
static void
SetChildHintCharacterSet(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
aChild->SetHintCharacterSet((PRUnichar*) aClosure);
}
NS_IMETHODIMP DocumentViewerImpl::SetHintCharacterSet(const PRUnichar* aHintCharacterSet)
{
mHintCharset = aHintCharacterSet;
// now set the hint char set on all children of mContainer
return CallChildren(SetChildHintCharacterSet, (void*) aHintCharacterSet);
}
#ifdef IBMBIDI
static void
SetChildBidiOptions(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
aChild->SetBidiOptions(NS_PTR_TO_INT32(aClosure));
}
#endif // IBMBIDI
NS_IMETHODIMP DocumentViewerImpl::SetBidiTextDirection(PRUint8 aTextDirection)
{
#ifdef IBMBIDI
PRUint32 bidiOptions;
GetBidiOptions(&bidiOptions);
SET_BIDI_OPTION_DIRECTION(bidiOptions, aTextDirection);
SetBidiOptions(bidiOptions);
#endif
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::GetBidiTextDirection(PRUint8* aTextDirection)
{
#ifdef IBMBIDI
PRUint32 bidiOptions;
if (aTextDirection) {
GetBidiOptions(&bidiOptions);
*aTextDirection = GET_BIDI_OPTION_DIRECTION(bidiOptions);
}
#endif
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::SetBidiTextType(PRUint8 aTextType)
{
#ifdef IBMBIDI
PRUint32 bidiOptions;
GetBidiOptions(&bidiOptions);
SET_BIDI_OPTION_TEXTTYPE(bidiOptions, aTextType);
SetBidiOptions(bidiOptions);
#endif
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::GetBidiTextType(PRUint8* aTextType)
{
#ifdef IBMBIDI
PRUint32 bidiOptions;
if (aTextType) {
GetBidiOptions(&bidiOptions);
*aTextType = GET_BIDI_OPTION_TEXTTYPE(bidiOptions);
}
#endif
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::SetBidiControlsTextMode(PRUint8 aControlsTextMode)
{
#ifdef IBMBIDI
PRUint32 bidiOptions;
GetBidiOptions(&bidiOptions);
SET_BIDI_OPTION_CONTROLSTEXTMODE(bidiOptions, aControlsTextMode);
SetBidiOptions(bidiOptions);
#endif
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::GetBidiControlsTextMode(PRUint8* aControlsTextMode)
{
#ifdef IBMBIDI
PRUint32 bidiOptions;
if (aControlsTextMode) {
GetBidiOptions(&bidiOptions);
*aControlsTextMode = GET_BIDI_OPTION_CONTROLSTEXTMODE(bidiOptions);
}
#endif
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::SetBidiClipboardTextMode(PRUint8 aClipboardTextMode)
{
#ifdef IBMBIDI
PRUint32 bidiOptions;
GetBidiOptions(&bidiOptions);
SET_BIDI_OPTION_CLIPBOARDTEXTMODE(bidiOptions, aClipboardTextMode);
SetBidiOptions(bidiOptions);
#endif
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::GetBidiClipboardTextMode(PRUint8* aClipboardTextMode)
{
#ifdef IBMBIDI
PRUint32 bidiOptions;
if (aClipboardTextMode) {
GetBidiOptions(&bidiOptions);
*aClipboardTextMode = GET_BIDI_OPTION_CLIPBOARDTEXTMODE(bidiOptions);
}
#endif
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::SetBidiNumeral(PRUint8 aNumeral)
{
#ifdef IBMBIDI
PRUint32 bidiOptions;
GetBidiOptions(&bidiOptions);
SET_BIDI_OPTION_NUMERAL(bidiOptions, aNumeral);
SetBidiOptions(bidiOptions);
#endif
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::GetBidiNumeral(PRUint8* aNumeral)
{
#ifdef IBMBIDI
PRUint32 bidiOptions;
if (aNumeral) {
GetBidiOptions(&bidiOptions);
*aNumeral = GET_BIDI_OPTION_NUMERAL(bidiOptions);
}
#endif
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::SetBidiSupport(PRUint8 aSupport)
{
#ifdef IBMBIDI
PRUint32 bidiOptions;
GetBidiOptions(&bidiOptions);
SET_BIDI_OPTION_SUPPORT(bidiOptions, aSupport);
SetBidiOptions(bidiOptions);
#endif
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::GetBidiSupport(PRUint8* aSupport)
{
#ifdef IBMBIDI
PRUint32 bidiOptions;
if (aSupport) {
GetBidiOptions(&bidiOptions);
*aSupport = GET_BIDI_OPTION_SUPPORT(bidiOptions);
}
#endif
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::SetBidiCharacterSet(PRUint8 aCharacterSet)
{
#ifdef IBMBIDI
PRUint32 bidiOptions;
GetBidiOptions(&bidiOptions);
SET_BIDI_OPTION_CHARACTERSET(bidiOptions, aCharacterSet);
SetBidiOptions(bidiOptions);
#endif
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::GetBidiCharacterSet(PRUint8* aCharacterSet)
{
#ifdef IBMBIDI
PRUint32 bidiOptions;
if (aCharacterSet) {
GetBidiOptions(&bidiOptions);
*aCharacterSet = GET_BIDI_OPTION_CHARACTERSET(bidiOptions);
}
#endif
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::SetBidiOptions(PRUint32 aBidiOptions)
{
#ifdef IBMBIDI
if (mPresContext) {
#if 1
// forcing reflow will cause bug 80352. Temp turn off force reflow and
// wait for simon@softel.co.il to find the real solution
mPresContext->SetBidi(aBidiOptions, PR_FALSE);
#else
mPresContext->SetBidi(aBidiOptions, PR_TRUE); // force reflow
#endif
}
// now set bidi on all children of mContainer
CallChildren(SetChildBidiOptions, (void*) aBidiOptions);
#endif // IBMBIDI
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::GetBidiOptions(PRUint32* aBidiOptions)
{
#ifdef IBMBIDI
if (aBidiOptions) {
if (mPresContext) {
mPresContext->GetBidi(aBidiOptions);
}
else
*aBidiOptions = IBMBIDI_DEFAULT_BIDI_OPTIONS;
}
#endif // IBMBIDI
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::SizeToContent()
{
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
nsCOMPtr<nsIDocShellTreeItem> docShellAsItem(do_QueryInterface(mContainer));
NS_ENSURE_TRUE(docShellAsItem, NS_ERROR_FAILURE);
nsCOMPtr<nsIDocShellTreeItem> docShellParent;
docShellAsItem->GetSameTypeParent(getter_AddRefs(docShellParent));
// It's only valid to access this from a top frame. Doesn't work from
// sub-frames.
NS_ENSURE_TRUE(!docShellParent, NS_ERROR_FAILURE);
nsCOMPtr<nsIPresShell> presShell;
GetPresShell(*getter_AddRefs(presShell));
NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(presShell->ResizeReflow(NS_UNCONSTRAINEDSIZE,
NS_UNCONSTRAINEDSIZE), NS_ERROR_FAILURE);
nsCOMPtr<nsIPresContext> presContext;
GetPresContext(*getter_AddRefs(presContext));
NS_ENSURE_TRUE(presContext, NS_ERROR_FAILURE);
nsRect shellArea;
PRInt32 width, height;
float pixelScale;
// so how big is it?
presContext->GetVisibleArea(shellArea);
presContext->GetTwipsToPixels(&pixelScale);
width = PRInt32((float)shellArea.width*pixelScale);
height = PRInt32((float)shellArea.height*pixelScale);
nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
docShellAsItem->GetTreeOwner(getter_AddRefs(treeOwner));
NS_ENSURE_TRUE(treeOwner, NS_ERROR_FAILURE);
/* presContext's size was calculated in twips and has already been
rounded to the equivalent pixels (so the width/height calculation
we just performed was probably exact, though it was based on
values already rounded during ResizeReflow). In a surprising
number of instances, this rounding makes a window which for want
of one extra pixel's width ends up wrapping the longest line of
text during actual window layout. This makes the window too short,
generally clipping the OK/Cancel buttons. Here we add one pixel
to the calculated width, to circumvent this problem. */
NS_ENSURE_SUCCESS(treeOwner->SizeShellTo(docShellAsItem, width+1, height),
NS_ERROR_FAILURE);
return NS_OK;
}
#ifdef XP_MAC
#pragma mark -
#endif
NS_IMPL_ISUPPORTS1(nsDocViewerSelectionListener, nsISelectionListener);
nsresult nsDocViewerSelectionListener::Init(DocumentViewerImpl *aDocViewer)
{
mDocViewer = aDocViewer;
return NS_OK;
}
/*
* GetPopupNode, GetPopupLinkNode and GetPopupImageNode are helpers
* for the cmd_copyLink / cmd_copyImageLocation / cmd_copyImageContents family
* of commands. The focus controller stores the popup node, these retrieve
* them and munge appropriately. Note that we have to store the popup node
* rather than retrieving it from EventStateManager::GetFocusedContent because
* not all content (images included) can receive focus.
*/
nsresult
DocumentViewerImpl::GetPopupNode(nsIDOMNode** aNode)
{
NS_ENSURE_ARG_POINTER(aNode);
nsresult rv;
// get the document
nsCOMPtr<nsIDocument> document;
rv = GetDocument(*getter_AddRefs(document));
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_TRUE(document, NS_ERROR_FAILURE);
// get the script global object
nsCOMPtr<nsIScriptGlobalObject> global;
rv = document->GetScriptGlobalObject(getter_AddRefs(global));
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_TRUE(global, NS_ERROR_FAILURE);
// get the internal dom window
nsCOMPtr<nsIDOMWindowInternal> internalWin(do_QueryInterface(global, &rv));
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_TRUE(internalWin, NS_ERROR_FAILURE);
// get the private dom window
nsCOMPtr<nsPIDOMWindow> privateWin(do_QueryInterface(internalWin, &rv));
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_TRUE(privateWin, NS_ERROR_FAILURE);
// get the focus controller
nsCOMPtr<nsIFocusController> focusController;
rv = privateWin->GetRootFocusController(getter_AddRefs(focusController));
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_TRUE(focusController, NS_ERROR_FAILURE);
// get the popup node
rv = focusController->GetPopupNode(aNode); // addref happens here
NS_ENSURE_SUCCESS(rv, rv);
return rv;
}
// GetPopupLinkNode: return popup link node or fail
nsresult
DocumentViewerImpl::GetPopupLinkNode(nsIDOMNode** aNode)
{
NS_ENSURE_ARG_POINTER(aNode);
// you get null unless i say so
*aNode = nsnull;
// find popup node
nsCOMPtr<nsIDOMNode> node;
nsresult rv = GetPopupNode(getter_AddRefs(node));
NS_ENSURE_SUCCESS(rv, rv);
// find out if we have a link in our ancestry
while (node) {
// are we an anchor?
nsCOMPtr<nsIDOMHTMLAnchorElement> anchor(do_QueryInterface(node));
nsCOMPtr<nsIDOMHTMLAreaElement> area;
nsCOMPtr<nsIDOMHTMLLinkElement> link;
nsAutoString xlinkType;
if (!anchor) {
// area?
area = do_QueryInterface(node);
if (!area) {
// link?
link = do_QueryInterface(node);
if (!link) {
// XLink?
nsCOMPtr<nsIDOMElement> element(do_QueryInterface(node));
if (element) {
element->GetAttributeNS(NS_LITERAL_STRING("http://www.w3.org/1999/xlink"),NS_LITERAL_STRING("type"),xlinkType);
}
}
}
}
if (anchor || area || link || xlinkType.Equals(NS_LITERAL_STRING("simple"))) {
*aNode = node;
NS_IF_ADDREF(*aNode); // addref
return NS_OK;
}
else {
// if not, get our parent and keep trying...
nsCOMPtr<nsIDOMNode> parentNode;
node->GetParentNode(getter_AddRefs(parentNode));
node = parentNode;
}
}
// if we have no node, fail
return NS_ERROR_FAILURE;
}
// GetPopupLinkNode: return popup image node or fail
nsresult
DocumentViewerImpl::GetPopupImageNode(nsIDOMNode** aNode)
{
NS_ENSURE_ARG_POINTER(aNode);
// you get null unless i say so
*aNode = nsnull;
// find popup node
nsCOMPtr<nsIDOMNode> node;
nsresult rv = GetPopupNode(getter_AddRefs(node));
NS_ENSURE_SUCCESS(rv, rv);
// XXX find out if we're an image. this really ought to look for objects
// XXX with type "image/...", but this is good enough for now.
nsCOMPtr<nsIDOMHTMLImageElement> img(do_QueryInterface(node, &rv));
if (NS_FAILED(rv)) return rv;
NS_ENSURE_TRUE(img, NS_ERROR_FAILURE);
// if we made it here, we're an image.
*aNode = node;
NS_IF_ADDREF(*aNode); // addref
return NS_OK;
}
/*
* XXX dr
* ------
* These two functions -- GetInLink and GetInImage -- are kind of annoying
* in that they only get called from the controller (in
* nsDOMWindowController::IsCommandEnabled). The actual construction of the
* context menus in communicator (nsContextMenu.js) has its own, redundant
* tests. No big deal, but good to keep in mind if we ever clean context
* menus.
*/
NS_IMETHODIMP DocumentViewerImpl::GetInLink(PRBool* aInLink)
{
#ifdef DEBUG_dr
printf("dr :: DocumentViewerImpl::GetInLink\n");
#endif
NS_ENSURE_ARG_POINTER(aInLink);
// we're not in a link unless i say so
*aInLink = PR_FALSE;
// get the popup link
nsCOMPtr<nsIDOMNode> node;
nsresult rv = GetPopupLinkNode(getter_AddRefs(node));
if (NS_FAILED(rv)) return rv;
NS_ENSURE_TRUE(node, NS_ERROR_FAILURE);
// if we made it here, we're in a link
*aInLink = PR_TRUE;
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::GetInImage(PRBool* aInImage)
{
#ifdef DEBUG_dr
printf("dr :: DocumentViewerImpl::GetInImage\n");
#endif
NS_ENSURE_ARG_POINTER(aInImage);
// we're not in an image unless i say so
*aInImage = PR_FALSE;
// get the popup image
nsCOMPtr<nsIDOMNode> node;
nsresult rv = GetPopupImageNode(getter_AddRefs(node));
if (NS_FAILED(rv)) return rv;
NS_ENSURE_TRUE(node, NS_ERROR_FAILURE);
// if we made it here, we're in an image
*aInImage = PR_TRUE;
return NS_OK;
}
NS_IMETHODIMP nsDocViewerSelectionListener::NotifySelectionChanged(nsIDOMDocument *, nsISelection *, short)
{
NS_ASSERTION(mDocViewer, "Should have doc viewer!");
// get the selection state
nsCOMPtr<nsISelection> selection;
nsresult rv = mDocViewer->GetDocumentSelection(getter_AddRefs(selection));
if (NS_FAILED(rv)) return rv;
PRBool selectionCollapsed;
selection->GetIsCollapsed(&selectionCollapsed);
// we only call UpdateCommands when the selection changes from collapsed
// to non-collapsed or vice versa. We might need another update string
// for simple selection changes, but that would be expenseive.
if (!mGotSelectionState || mSelectionWasCollapsed != selectionCollapsed)
{
nsCOMPtr<nsIDocument> theDoc;
mDocViewer->GetDocument(*getter_AddRefs(theDoc));
if (!theDoc) return NS_ERROR_FAILURE;
nsCOMPtr<nsIScriptGlobalObject> scriptGlobalObject;
theDoc->GetScriptGlobalObject(getter_AddRefs(scriptGlobalObject));
nsCOMPtr<nsIDOMWindowInternal> domWindow = do_QueryInterface(scriptGlobalObject);
if (!domWindow) return NS_ERROR_FAILURE;
domWindow->UpdateCommands(NS_LITERAL_STRING("select"));
mGotSelectionState = PR_TRUE;
mSelectionWasCollapsed = selectionCollapsed;
}
return NS_OK;
}
//nsDocViewerFocusListener
NS_IMPL_ISUPPORTS1(nsDocViewerFocusListener, nsIDOMFocusListener);
nsDocViewerFocusListener::nsDocViewerFocusListener()
:mDocViewer(nsnull)
{
NS_INIT_REFCNT();
}
nsDocViewerFocusListener::~nsDocViewerFocusListener(){}
nsresult
nsDocViewerFocusListener::HandleEvent(nsIDOMEvent* aEvent)
{
return NS_OK;
}
NS_IMETHODIMP
nsDocViewerFocusListener::Focus(nsIDOMEvent* aEvent)
{
nsCOMPtr<nsIPresShell> shell;
if(!mDocViewer)
return NS_ERROR_FAILURE;
nsresult result = mDocViewer->GetPresShell(*getter_AddRefs(shell));//deref once cause it take a ptr ref
if(NS_FAILED(result) || !shell)
return result?result:NS_ERROR_FAILURE;
nsCOMPtr<nsISelectionController> selCon;
selCon = do_QueryInterface(shell);
PRInt16 selectionStatus;
selCon->GetDisplaySelection( &selectionStatus);
//if selection was nsISelectionController::SELECTION_OFF, do nothing
//otherwise re-enable it.
if(selectionStatus == nsISelectionController::SELECTION_DISABLED ||
selectionStatus == nsISelectionController::SELECTION_HIDDEN)
{
selCon->SetDisplaySelection(nsISelectionController::SELECTION_ON);
selCon->RepaintSelection(nsISelectionController::SELECTION_NORMAL);
}
return result;
}
NS_IMETHODIMP
nsDocViewerFocusListener::Blur(nsIDOMEvent* aEvent)
{
nsCOMPtr<nsIPresShell> shell;
if(!mDocViewer)
return NS_ERROR_FAILURE;
nsresult result = mDocViewer->GetPresShell(*getter_AddRefs(shell));//deref once cause it take a ptr ref
if(NS_FAILED(result) || !shell)
return result?result:NS_ERROR_FAILURE;
nsCOMPtr<nsISelectionController> selCon;
selCon = do_QueryInterface(shell);
PRInt16 selectionStatus;
selCon->GetDisplaySelection(&selectionStatus);
//if selection was nsISelectionController::SELECTION_OFF, do nothing
//otherwise re-enable it.
if(selectionStatus == nsISelectionController::SELECTION_ON)
{
selCon->SetDisplaySelection(nsISelectionController::SELECTION_DISABLED);
selCon->RepaintSelection(nsISelectionController::SELECTION_NORMAL);
}
return result;
}
nsresult
nsDocViewerFocusListener::Init(DocumentViewerImpl *aDocViewer)
{
mDocViewer = aDocViewer;
return NS_OK;
}
/** ---------------------------------------------------
* From nsIWebBrowserPrint
*/
NS_IMETHODIMP
DocumentViewerImpl::Print(nsIPrintSettings* aPrintSettings,
nsIWebProgressListener* aWebProgressListener)
{
#ifdef NS_PRINTING
// Temporary code for Bug 136185
nsCOMPtr<nsIXULDocument> xulDoc(do_QueryInterface(mDocument));
if (xulDoc) {
nsPrintEngine::ShowPrintErrorDialog(NS_ERROR_GFX_PRINTER_NO_XUL);
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIDocShell> docShell(do_QueryInterface(mContainer));
NS_ASSERTION(docShell, "This has to be a docshell");
// Check to see if this document is still busy
// If it is busy and we aren't already "queued" up to print then
// Indicate there is a print pending and cache the args for later
PRUint32 busyFlags = nsIDocShell::BUSY_FLAGS_NONE;
if ((NS_FAILED(docShell->GetBusyFlags(&busyFlags)) ||
(busyFlags != nsIDocShell::BUSY_FLAGS_NONE && busyFlags & nsIDocShell::BUSY_FLAGS_PAGE_LOADING)) &&
!mPrintDocIsFullyLoaded) {
if (!mPrintIsPending) {
mCachedPrintSettings = aPrintSettings;
mCachedPrintWebProgressListner = aWebProgressListener;
mPrintIsPending = PR_TRUE;
}
return NS_OK;
}
nsCOMPtr<nsIPresShell> presShell;
docShell->GetPresShell(getter_AddRefs(presShell));
if (!presShell) {
// A frame that's not displayed can't be printed!
PR_PL(("Printing Stopped - PreShell was NULL!"));
return NS_OK;
}
nsresult rv = NS_ERROR_FAILURE;
// if we are printing another URL, then exit
// the reason we check here is because this method can be called while
// another is still in here (the printing dialog is a good example).
// the only time we can print more than one job at a time is the regression tests
if (GetIsPrinting()) {
// Let the user know we are not ready to print.
rv = NS_ERROR_NOT_AVAILABLE;
nsPrintEngine::ShowPrintErrorDialog(rv);
return rv;
}
if (!mPrintEngine) {
mPrintEngine = new nsPrintEngine();
NS_ENSURE_TRUE(mPrintEngine, NS_ERROR_OUT_OF_MEMORY);
NS_ADDREF(mPrintEngine);
#ifdef NS_DEBUG
mPrintEngine->Initialize(this, this, mContainer, mDocument,
mDeviceContext, mPresContext, mWindow, mParentWidget, mDebugFile);
#else
mPrintEngine->Initialize(this, this, mContainer, mDocument,
mDeviceContext, mPresContext, mWindow, mParentWidget, nsnull);
#endif
}
rv = mPrintEngine->Print(aPrintSettings, aWebProgressListener);
if (NS_FAILED(rv)) {
OnDonePrinting();
}
return rv;
#else
return NS_ERROR_FAILURE;
#endif
}
/** ---------------------------------------------------
* See documentation above in the nsIContentViewerfile class definition
* @update 11/01/01 rods
*
* For a full and detailed understanding of the issues with
* PrintPreview: See the design spec that is attached to Bug 107562
*/
NS_IMETHODIMP
DocumentViewerImpl::PrintPreview(nsIPrintSettings* aPrintSettings,
nsIDOMWindow *aChildDOMWin,
nsIWebProgressListener* aWebProgressListener)
{
#if defined(NS_PRINTING) && defined(NS_PRINT_PREVIEW)
nsresult rv = NS_OK;
if (GetIsPrinting()) {
nsPrintEngine::CloseProgressDialog(aWebProgressListener);
return NS_ERROR_FAILURE;
}
// Temporary code for Bug 136185
nsCOMPtr<nsIXULDocument> xulDoc(do_QueryInterface(mDocument));
if (xulDoc) {
nsPrintEngine::CloseProgressDialog(aWebProgressListener);
nsPrintEngine::ShowPrintErrorDialog(NS_ERROR_GFX_PRINTER_NO_XUL, PR_FALSE);
return NS_ERROR_FAILURE;
}
if (!mPrintEngine) {
mPrintEngine = new nsPrintEngine();
NS_ENSURE_TRUE(mPrintEngine, NS_ERROR_OUT_OF_MEMORY);
NS_ADDREF(mPrintEngine);
#ifdef NS_DEBUG
mPrintEngine->Initialize(this, this, mContainer, mDocument,
mDeviceContext, mPresContext, mWindow, mParentWidget, mDebugFile);
#else
mPrintEngine->Initialize(this, this, mContainer, mDocument,
mDeviceContext, mPresContext, mWindow, mParentWidget, nsnull);
#endif
}
rv = mPrintEngine->PrintPreview(aPrintSettings, aChildDOMWin, aWebProgressListener);
if (NS_FAILED(rv)) {
OnDonePrinting();
}
return rv;
#else
return NS_ERROR_FAILURE;
#endif
}
//----------------------------------------------------------------------
NS_IMETHODIMP
DocumentViewerImpl::PrintPreviewNavigate(PRInt16 aType, PRInt32 aPageNum)
{
#if defined(NS_PRINTING) && defined(NS_PRINT_PREVIEW)
if (GetIsPrinting()) return NS_ERROR_FAILURE;
if (!mPrintEngine) return NS_ERROR_FAILURE;
nsIScrollableView* scrollableView;
mViewManager->GetRootScrollableView(&scrollableView);
if (scrollableView == nsnull) return NS_OK;
// Check to see if we can short circut scrolling to the top
if (aType == nsIWebBrowserPrint::PRINTPREVIEW_HOME ||
(aType == nsIWebBrowserPrint::PRINTPREVIEW_GOTO_PAGENUM && aPageNum == 1)) {
scrollableView->ScrollTo(0, 0, PR_TRUE);
return NS_OK;
}
// Finds the SimplePageSequencer frame
// in PP mPrtPreview->mPrintObject->mSeqFrame is null
nsIFrame* seqFrame = nsnull;
PRInt32 pageCount = 0;
if (NS_FAILED(mPrintEngine->GetSeqFrameAndCountPages(seqFrame, pageCount))) {
return NS_ERROR_FAILURE;
}
// Figure where we are currently scrolled to
const nsIView * clippedView;
scrollableView->GetClipView(&clippedView);
nscoord x;
nscoord y;
scrollableView->GetScrollPosition(x, y);
PRInt32 pageNum = 1;
nsIFrame * fndPageFrame = nsnull;
nsIFrame * currentPage = nsnull;
// If it is "End" then just do a "goto" to the last page
if (aType == nsIWebBrowserPrint::PRINTPREVIEW_END) {
aType = nsIWebBrowserPrint::PRINTPREVIEW_GOTO_PAGENUM;
aPageNum = pageCount;
}
// Now, locate the current page we are on and
// and the page of the page number
nscoord gap = 0;
nsIFrame * pageFrame;
seqFrame->FirstChild(mPresContext, nsnull, &pageFrame);
while (pageFrame != nsnull) {
nsRect pageRect;
pageFrame->GetRect(pageRect);
if (pageNum == 1) {
gap = pageRect.y;
}
pageRect.y -= gap;
if (pageRect.Contains(pageRect.x, y)) {
currentPage = pageFrame;
}
if (pageNum == aPageNum) {
fndPageFrame = pageFrame;
break;
}
pageNum++;
pageFrame->GetNextSibling(&pageFrame);
}
if (aType == nsIWebBrowserPrint::PRINTPREVIEW_PREV_PAGE) {
if (currentPage) {
currentPage->GetPrevInFlow(&fndPageFrame);
if (!fndPageFrame) {
return NS_OK;
}
} else {
return NS_OK;
}
} else if (aType == nsIWebBrowserPrint::PRINTPREVIEW_NEXT_PAGE) {
if (currentPage) {
currentPage->GetNextInFlow(&fndPageFrame);
if (!fndPageFrame) {
return NS_OK;
}
} else {
return NS_OK;
}
} else { // If we get here we are doing "GoTo"
if (aPageNum < 0 || aPageNum > pageCount) {
return NS_OK;
}
}
if (fndPageFrame && scrollableView) {
// get the child rect
nsRect fRect;
fndPageFrame->GetRect(fRect);
// find offset from view
nsPoint pnt;
nsIView * view;
fndPageFrame->GetOffsetFromView(mPresContext, pnt, &view);
nscoord deadSpaceGap = 0;
nsIPageSequenceFrame * sqf;
if (NS_SUCCEEDED(CallQueryInterface(seqFrame, &sqf))) {
sqf->GetDeadSpaceValue(&deadSpaceGap);
}
// scroll so that top of page (plus the gray area) is at the top of the scroll area
scrollableView->ScrollTo(0, fRect.y-deadSpaceGap, PR_TRUE);
}
return NS_OK;
#else
return NS_ERROR_FAILURE;
#endif // NS_PRINT_PREVIEW
}
/* readonly attribute nsIPrintSettings globalPrintSettings; */
NS_IMETHODIMP
DocumentViewerImpl::GetGlobalPrintSettings(nsIPrintSettings * *aGlobalPrintSettings)
{
#ifdef NS_PRINTING
NS_ENSURE_ARG_POINTER(aGlobalPrintSettings);
nsPrintEngine printEngine;
return printEngine.GetGlobalPrintSettings(aGlobalPrintSettings);
#else
return NS_ERROR_FAILURE;
#endif
}
/* readonly attribute boolean doingPrint; */
NS_IMETHODIMP
DocumentViewerImpl::GetDoingPrint(PRBool *aDoingPrint)
{
#ifdef NS_PRINTING
NS_ENSURE_ARG_POINTER(aDoingPrint);
*aDoingPrint = PR_FALSE;
if (mPrintEngine) {
return mPrintEngine->GetDoingPrintPreview(aDoingPrint);
}
return NS_OK;
#else
return NS_ERROR_FAILURE;
#endif
}
/* readonly attribute boolean doingPrintPreview; */
NS_IMETHODIMP
DocumentViewerImpl::GetDoingPrintPreview(PRBool *aDoingPrintPreview)
{
#ifdef NS_PRINTING
NS_ENSURE_ARG_POINTER(aDoingPrintPreview);
*aDoingPrintPreview = PR_FALSE;
if (mPrintEngine) {
return mPrintEngine->GetDoingPrintPreview(aDoingPrintPreview);
}
return NS_OK;
#else
return NS_ERROR_FAILURE;
#endif
}
/* readonly attribute nsIPrintSettings currentPrintSettings; */
NS_IMETHODIMP
DocumentViewerImpl::GetCurrentPrintSettings(nsIPrintSettings * *aCurrentPrintSettings)
{
#ifdef NS_PRINTING
NS_ENSURE_ARG_POINTER(aCurrentPrintSettings);
*aCurrentPrintSettings = nsnull;
NS_ENSURE_TRUE(mPrintEngine, NS_ERROR_FAILURE);
return mPrintEngine->GetCurrentPrintSettings(aCurrentPrintSettings);
#else
return NS_ERROR_FAILURE;
#endif
}
/* readonly attribute nsIDOMWindow currentChildDOMWindow; */
NS_IMETHODIMP
DocumentViewerImpl::GetCurrentChildDOMWindow(nsIDOMWindow * *aCurrentChildDOMWindow)
{
NS_ENSURE_ARG_POINTER(aCurrentChildDOMWindow);
*aCurrentChildDOMWindow = nsnull;
return NS_ERROR_NOT_IMPLEMENTED;
}
/* void cancel (); */
NS_IMETHODIMP
DocumentViewerImpl::Cancel()
{
#ifdef NS_PRINTING
NS_ENSURE_TRUE(mPrintEngine, NS_ERROR_FAILURE);
return mPrintEngine->Cancelled();
#else
return NS_ERROR_FAILURE;
#endif
}
/* void exitPrintPreview (); */
NS_IMETHODIMP
DocumentViewerImpl::ExitPrintPreview()
{
#ifdef NS_PRINTING
if (GetIsPrinting()) return NS_ERROR_FAILURE;
NS_ENSURE_TRUE(mPrintEngine, NS_ERROR_FAILURE);
if (GetIsPrintPreview()) {
ReturnToGalleyPresentation();
}
return NS_OK;
#else
return NS_ERROR_FAILURE;
#endif
}
//----------------------------------------------------------------------------------
// Enumerate all the documents for their titles
NS_IMETHODIMP
DocumentViewerImpl::EnumerateDocumentNames(PRUint32* aCount,
PRUnichar*** aResult)
{
#ifdef NS_PRINTING
NS_ENSURE_ARG(aCount);
NS_ENSURE_ARG_POINTER(aResult);
NS_ENSURE_TRUE(mPrintEngine, NS_ERROR_FAILURE);
return mPrintEngine->EnumerateDocumentNames(aCount, aResult);
#else
return NS_ERROR_FAILURE;
#endif
}
/* readonly attribute boolean isFramesetFrameSelected; */
NS_IMETHODIMP
DocumentViewerImpl::GetIsFramesetFrameSelected(PRBool *aIsFramesetFrameSelected)
{
#ifdef NS_PRINTING
*aIsFramesetFrameSelected = PR_FALSE;
NS_ENSURE_TRUE(mPrintEngine, NS_ERROR_FAILURE);
return mPrintEngine->GetIsFramesetFrameSelected(aIsFramesetFrameSelected);
#else
return NS_ERROR_FAILURE;
#endif
}
/* readonly attribute long printPreviewNumPages; */
NS_IMETHODIMP
DocumentViewerImpl::GetPrintPreviewNumPages(PRInt32 *aPrintPreviewNumPages)
{
#ifdef NS_PRINTING
NS_ENSURE_ARG_POINTER(aPrintPreviewNumPages);
NS_ENSURE_TRUE(mPrintEngine, NS_ERROR_FAILURE);
return mPrintEngine->GetPrintPreviewNumPages(aPrintPreviewNumPages);
#else
return NS_ERROR_FAILURE;
#endif
}
/* readonly attribute boolean isFramesetDocument; */
NS_IMETHODIMP
DocumentViewerImpl::GetIsFramesetDocument(PRBool *aIsFramesetDocument)
{
#ifdef NS_PRINTING
*aIsFramesetDocument = PR_FALSE;
NS_ENSURE_TRUE(mPrintEngine, NS_ERROR_FAILURE);
return mPrintEngine->GetIsFramesetDocument(aIsFramesetDocument);
#else
return NS_ERROR_FAILURE;
#endif
}
/* readonly attribute boolean isIFrameSelected; */
NS_IMETHODIMP
DocumentViewerImpl::GetIsIFrameSelected(PRBool *aIsIFrameSelected)
{
#ifdef NS_PRINTING
*aIsIFrameSelected = PR_FALSE;
NS_ENSURE_TRUE(mPrintEngine, NS_ERROR_FAILURE);
return mPrintEngine->GetIsIFrameSelected(aIsIFrameSelected);
#else
return NS_ERROR_FAILURE;
#endif
}
/* readonly attribute boolean isRangeSelection; */
NS_IMETHODIMP
DocumentViewerImpl::GetIsRangeSelection(PRBool *aIsRangeSelection)
{
#ifdef NS_PRINTING
*aIsRangeSelection = PR_FALSE;
NS_ENSURE_TRUE(mPrintEngine, NS_ERROR_FAILURE);
return mPrintEngine->GetIsRangeSelection(aIsRangeSelection);
#else
return NS_ERROR_FAILURE;
#endif
}
//----------------------------------------------------------------------------------
// Printing/Print Preview Helpers
//----------------------------------------------------------------------------------
//------------------------------------------------------------
PRBool
DocumentViewerImpl::GetIsPrinting()
{
#ifdef NS_PRINTING
if (mPrintEngine) {
return mPrintEngine->GetIsPrinting();
}
#endif
return PR_FALSE;
}
//------------------------------------------------------------
void
DocumentViewerImpl::SetIsPrinting(PRBool aIsPrinting)
{
#ifdef NS_PRINTING
if (mPrintEngine) {
mPrintEngine->SetIsPrinting(aIsPrinting);
}
#endif
}
//------------------------------------------------------------
PRBool
DocumentViewerImpl::GetIsPrintPreview()
{
#ifdef NS_PRINTING
if (mPrintEngine) {
return mPrintEngine->GetIsPrintPreview();
}
#endif
return PR_FALSE;
}
//------------------------------------------------------------
void
DocumentViewerImpl::SetIsPrintPreview(PRBool aIsPrintPreview)
{
#ifdef NS_PRINTING
if (mPrintEngine) {
mPrintEngine->SetIsPrintPreview(aIsPrintPreview);
}
#endif
}
//------------------------------------------------------------
PRBool
DocumentViewerImpl::GetIsCreatingPrintPreview()
{
#if defined(NS_PRINTING) && defined(NS_PRINT_PREVIEW)
if (mPrintEngine) {
return mPrintEngine->GetIsCreatingPrintPreview();
}
#endif
return PR_FALSE;
}
//------------------------------------------------------------
void
DocumentViewerImpl::SetIsCreatingPrintPreview(PRBool aIsCreatingPrintPreview)
{
#ifdef NS_PRINTING
if (mPrintEngine) {
mPrintEngine->SetIsCreatingPrintPreview(aIsCreatingPrintPreview);
}
#endif
}
//----------------------------------------------------------------------------------
// nsIDocumentViewerPrint IFace
//----------------------------------------------------------------------------------
//------------------------------------------------------------
void
DocumentViewerImpl::IncrementDestroyRefCount()
{
++mDestroyRefCount;
}
//------------------------------------------------------------
void
DocumentViewerImpl::ReturnToGalleyPresentation()
{
#if defined(NS_PRINTING) && defined(NS_PRINT_PREVIEW)
if (!GetIsPrintPreview()) {
NS_ASSERTION(0, "Wow, we should never get here!");
return;
}
// Get the current size of what is being viewed
nsRect area;
mPresContext->GetVisibleArea(area);
nsRect bounds;
mWindow->GetBounds(bounds);
// In case we have focus focus the parent DocShell
// which in this case should always be chrome
nsCOMPtr<nsIDocShellTreeItem> dstParentItem;
nsCOMPtr<nsIDocShellTreeItem> dstItem(do_QueryInterface(mContainer));
if (dstItem) {
dstItem->GetParent(getter_AddRefs(dstParentItem));
nsCOMPtr<nsIDocShell> docShell(do_QueryInterface(dstParentItem));
if (docShell) {
docShell->SetHasFocus(PR_TRUE);
}
}
// Start to kill off the old Presentation
// by cleaning up the PresShell
if (mPresShell) {
// Break circular reference (or something)
mPresShell->EndObservingDocument();
nsCOMPtr<nsISelection> selection;
nsresult rv = GetDocumentSelection(getter_AddRefs(selection));
nsCOMPtr<nsISelectionPrivate> selPrivate(do_QueryInterface(selection));
if (NS_SUCCEEDED(rv) && selPrivate && mSelectionListener)
selPrivate->RemoveSelectionListener(mSelectionListener);
mPresShell->Destroy();
}
// clear weak references before we go away
if (mPresContext) {
mPresContext->SetContainer(nsnull);
mPresContext->SetLinkHandler(nsnull);
}
// wasCached will be used below to indicate whether the
// InitInternal should create all new objects or just
// initialize the existing ones
PRBool wasCached = PR_FALSE;
if (mPrintEngine && mPrintEngine->HasCachedPres()) {
mPrintEngine->GetCachedPresentation(mPresShell, mPresContext, mViewManager, mWindow);
// Tell the "real" presshell to start observing the document
// again.
mPresShell->BeginObservingDocument();
mWindow->Show(PR_TRUE);
// Very important! Turn On scripting
mPrintEngine->TurnScriptingOn(PR_TRUE);
mPrintEngine->Destroy();
NS_RELEASE(mPrintEngine);
wasCached = PR_TRUE;
} else {
// Destroy the old Presentation
mPresShell = nsnull;
mPresContext = nsnull;
mViewManager = nsnull;
mWindow = nsnull;
}
if (mPrintEngine) {
// Very important! Turn On scripting
mPrintEngine->TurnScriptingOn(PR_TRUE);
}
InitInternal(mParentWidget, mDeviceContext, bounds, !wasCached);
if (mPrintEngine && !mPrintEngine->HasCachedPres()) {
mPrintEngine->Destroy();
NS_RELEASE(mPrintEngine);
}
// this needs to be set here not earlier,
// because it is needing when re-constructing the Galley Mode)
SetIsPrintPreview(PR_FALSE);
mViewManager->EnableRefresh(NS_VMREFRESH_NO_SYNC);
Show();
#endif // NS_PRINTING && NS_PRINT_PREVIEW
}
//------------------------------------------------------------
void
DocumentViewerImpl::InstallNewPresentation()
{
#if defined(NS_PRINTING) && defined(NS_PRINT_PREVIEW)
// Get the current size of what is being viewed
nsRect area;
mPresContext->GetVisibleArea(area);
nsRect bounds;
mWindow->GetBounds(bounds);
// In case we have focus focus the parent DocShell
// which in this case should always be chrome
nsCOMPtr<nsIDocShellTreeItem> dstParentItem;
nsCOMPtr<nsIDocShellTreeItem> dstItem(do_QueryInterface(mContainer));
if (dstItem) {
dstItem->GetParent(getter_AddRefs(dstParentItem));
nsCOMPtr<nsIDocShell> docShell(do_QueryInterface(dstParentItem));
if (docShell) {
docShell->SetHasFocus(PR_TRUE);
}
}
// turn off selection painting
nsCOMPtr<nsISelectionController> selectionController =
do_QueryInterface(mPresShell);
if (selectionController) {
selectionController->SetDisplaySelection(nsISelectionController::SELECTION_OFF);
}
// Start to kill off the old Presentation
// by cleaning up the PresShell
if (mPresShell) {
// Break circular reference (or something)
mPresShell->EndObservingDocument();
nsCOMPtr<nsISelection> selection;
nsresult rv = GetDocumentSelection(getter_AddRefs(selection));
nsCOMPtr<nsISelectionPrivate> selPrivate(do_QueryInterface(selection));
if (NS_SUCCEEDED(rv) && selPrivate && mSelectionListener)
selPrivate->RemoveSelectionListener(mSelectionListener);
// We need to destroy the PreShell if there is an existing PP
// or we are not caching the original Presentation
if (!mPrintEngine->IsCachingPres() || mPrintEngine->IsOldPrintPreviewPres()) {
mPresShell->Destroy();
}
}
// clear weak references before we go away
if (mPresContext) {
mPresContext->SetContainer(nsnull);
mPresContext->SetLinkHandler(nsnull);
}
// See if we are suppose to be caching the old Presentation
// and then check to see if we already have.
if (mPrintEngine->IsCachingPres() && !mPrintEngine->HasCachedPres()) {
// Cach old presentation
mPrintEngine->CachePresentation(mPresShell, mPresContext, mViewManager, mWindow);
mWindow->Show(PR_FALSE);
} else {
// Destroy the old Presentation
mPresShell = nsnull;
mPresContext = nsnull;
mViewManager = nsnull;
mWindow = nsnull;
}
// XXX InstallPrintPreviewListener();
mPrintEngine->GetNewPresentation(mPresShell, mPresContext, mViewManager, mWindow);
mPresShell->BeginObservingDocument();
nscoord width = bounds.width;
nscoord height = bounds.height;
float p2t;
mPresContext->GetPixelsToTwips(&p2t);
width = NSIntPixelsToTwips(width, p2t);
height = NSIntPixelsToTwips(height, p2t);
mViewManager->DisableRefresh();
mViewManager->SetWindowDimensions(width, height);
mDeviceContext->SetUseAltDC(kUseAltDCFor_FONTMETRICS, PR_FALSE);
mDeviceContext->SetUseAltDC(kUseAltDCFor_CREATERC_PAINT, PR_TRUE);
mViewManager->EnableRefresh(NS_VMREFRESH_NO_SYNC);
Show();
mPrintEngine->ShowDocList(PR_TRUE);
#endif // NS_PRINTING && NS_PRINT_PREVIEW
}
//------------------------------------------------------------
void
DocumentViewerImpl::OnDonePrinting()
{
#if defined(NS_PRINTING) && defined(NS_PRINT_PREVIEW)
if (mPrintEngine) {
mPrintEngine->Destroy();
NS_RELEASE(mPrintEngine);
}
#endif // NS_PRINTING && NS_PRINT_PREVIEW
}
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