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nsPrintEngine.cpp
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nsPrintEngine.cpp
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org 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):
* Roland Mainz <roland.mainz@informatik.med.uni-giessen.de>
*
* Alternatively, the contents of this file may be used under the terms of
* either of 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 MPL, 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 MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsPrintEngine.h"
#include "nsIStringBundle.h"
#include "nsReadableUtils.h"
#include "nsCRT.h"
#include "nsISelection.h"
#include "nsIScriptGlobalObject.h"
#include "nsPIDOMWindow.h"
#include "nsIDocShell.h"
#include "nsIURI.h"
#include "nsITextToSubURI.h"
#include "nsContentErrors.h"
// Print Options
#include "nsIPrintSettings.h"
#include "nsIPrintSettingsService.h"
#include "nsIPrintOptions.h"
#include "nsIPrintSession.h"
#include "nsGfxCIID.h"
#include "nsIServiceManager.h"
#include "nsGkAtoms.h"
#include "nsXPCOM.h"
#include "nsISupportsPrimitives.h"
static const char sPrintSettingsServiceContractID[] = "@mozilla.org/gfx/printsettings-service;1";
// Printing Events
#include "nsPrintPreviewListener.h"
#include "nsThreadUtils.h"
// Printing
#include "nsIWebBrowserPrint.h"
#include "nsIDOMHTMLFrameElement.h"
#include "nsIDOMHTMLFrameSetElement.h"
#include "nsIDOMHTMLIFrameElement.h"
#include "nsIDOMHTMLObjectElement.h"
#include "nsIDOMHTMLEmbedElement.h"
// Print Preview
#include "imgIContainer.h" // image animation mode constants
#include "nsIWebBrowserPrint.h" // needed for PrintPreview Navigation constants
// Print Progress
#include "nsIPrintProgress.h"
#include "nsIPrintProgressParams.h"
#include "nsIObserver.h"
// Print error dialog
#include "nsIPrompt.h"
#include "nsIWindowWatcher.h"
#include "nsIStringBundle.h"
// Printing Prompts
#include "nsIPrintingPromptService.h"
static const char kPrintingPromptService[] = "@mozilla.org/embedcomp/printingprompt-service;1";
// Printing Timer
#include "nsPagePrintTimer.h"
// FrameSet
#include "nsIDocument.h"
// Focus
#include "nsIDOMEventTarget.h"
#include "nsIDOMFocusListener.h"
#include "nsISelectionController.h"
// Misc
#include "nsISupportsUtils.h"
#include "nsIFrame.h"
#include "nsIScriptContext.h"
#include "nsILinkHandler.h"
#include "nsIDOMDocument.h"
#include "nsISelectionListener.h"
#include "nsISelectionPrivate.h"
#include "nsIDOMHTMLDocument.h"
#include "nsIDOMHTMLCollection.h"
#include "nsIDOMHTMLElement.h"
#include "nsIDOMRange.h"
#include "nsContentCID.h"
#include "nsLayoutCID.h"
#include "nsContentUtils.h"
#include "nsIPresShell.h"
#include "nsLayoutUtils.h"
#include "mozilla/Preferences.h"
#include "nsViewsCID.h"
#include "nsWidgetsCID.h"
#include "nsIDeviceContextSpec.h"
#include "nsIViewManager.h"
#include "nsIView.h"
#include "nsRenderingContext.h"
#include "nsIPageSequenceFrame.h"
#include "nsIURL.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 "nsIWebBrowserChrome.h"
#include "nsIDocShell.h"
#include "nsIBaseWindow.h"
#include "nsILayoutHistoryState.h"
#include "nsFrameManager.h"
#include "nsIParser.h"
#include "nsGUIEvent.h"
#include "nsHTMLReflowState.h"
#include "nsIDOMHTMLAnchorElement.h"
#include "nsIDOMHTMLAreaElement.h"
#include "nsIDOMHTMLLinkElement.h"
#include "nsIDOMHTMLImageElement.h"
#include "nsIContentViewerContainer.h"
#include "nsIContentViewer.h"
#include "nsIDocumentViewer.h"
#include "nsIDocumentViewerPrint.h"
#include "nsPIDOMWindow.h"
#include "nsFocusManager.h"
#include "nsRange.h"
#include "nsCDefaultURIFixup.h"
#include "nsIURIFixup.h"
#include "mozilla/dom/Element.h"
using namespace mozilla;
using namespace mozilla::dom;
//-----------------------------------------------------
// 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
#ifdef EXTENDED_DEBUG_PRINTING
// Forward Declarations
static void DumpPrintObjectsListStart(const char * aStr, nsTArray<nsPrintObject*> * aDocList);
static void DumpPrintObjectsTree(nsPrintObject * aPO, int aLevel= 0, FILE* aFD = nsnull);
static void DumpPrintObjectsTreeLayout(nsPrintObject * aPO,nsDeviceContext * aDC, int aLevel= 0, FILE * aFD = nsnull);
#define DUMP_DOC_LIST(_title) DumpPrintObjectsListStart((_title), mPrt->mPrintDocList);
#define DUMP_DOC_TREE DumpPrintObjectsTree(mPrt->mPrintObject);
#define DUMP_DOC_TREELAYOUT DumpPrintObjectsTreeLayout(mPrt->mPrintObject, mPrt->mPrintDC);
#else
#define DUMP_DOC_LIST(_title)
#define DUMP_DOC_TREE
#define DUMP_DOC_TREELAYOUT
#endif
class nsScriptSuppressor
{
public:
nsScriptSuppressor(nsPrintEngine* aPrintEngine)
: mPrintEngine(aPrintEngine), mSuppressed(PR_FALSE) {}
~nsScriptSuppressor() { Unsuppress(); }
void Suppress()
{
if (mPrintEngine) {
mSuppressed = PR_TRUE;
mPrintEngine->TurnScriptingOn(PR_FALSE);
}
}
void Unsuppress()
{
if (mPrintEngine && mSuppressed) {
mPrintEngine->TurnScriptingOn(PR_TRUE);
}
mSuppressed = PR_FALSE;
}
void Disconnect() { mPrintEngine = nsnull; }
protected:
nsRefPtr<nsPrintEngine> mPrintEngine;
PRBool mSuppressed;
};
// Class IDs
static NS_DEFINE_CID(kViewManagerCID, NS_VIEW_MANAGER_CID);
NS_IMPL_ISUPPORTS1(nsPrintEngine, nsIObserver)
//---------------------------------------------------
//-- nsPrintEngine Class Impl
//---------------------------------------------------
nsPrintEngine::nsPrintEngine() :
mIsCreatingPrintPreview(PR_FALSE),
mIsDoingPrinting(PR_FALSE),
mIsDoingPrintPreview(PR_FALSE),
mProgressDialogIsShown(PR_FALSE),
mScreenDPI(115.0f),
mPrt(nsnull),
mPagePrintTimer(nsnull),
mPageSeqFrame(nsnull),
mPrtPreview(nsnull),
mOldPrtPreview(nsnull),
mDebugFile(nsnull)
{
}
//-------------------------------------------------------
nsPrintEngine::~nsPrintEngine()
{
Destroy(); // for insurance
}
//-------------------------------------------------------
void nsPrintEngine::Destroy()
{
if (mPrt) {
delete mPrt;
mPrt = nsnull;
}
#ifdef NS_PRINT_PREVIEW
if (mPrtPreview) {
delete mPrtPreview;
mPrtPreview = nsnull;
}
// This is insruance
if (mOldPrtPreview) {
delete mOldPrtPreview;
mOldPrtPreview = nsnull;
}
#endif
mDocViewerPrint = nsnull;
}
//-------------------------------------------------------
void nsPrintEngine::DestroyPrintingData()
{
if (mPrt) {
delete mPrt;
mPrt = nsnull;
}
}
//---------------------------------------------------------------------------------
//-- Section: Methods needed by the DocViewer
//---------------------------------------------------------------------------------
//--------------------------------------------------------
nsresult nsPrintEngine::Initialize(nsIDocumentViewerPrint* aDocViewerPrint,
nsIWeakReference* aContainer,
nsIDocument* aDocument,
float aScreenDPI,
FILE* aDebugFile)
{
NS_ENSURE_ARG_POINTER(aDocViewerPrint);
NS_ENSURE_ARG_POINTER(aContainer);
NS_ENSURE_ARG_POINTER(aDocument);
mDocViewerPrint = aDocViewerPrint;
mContainer = aContainer;
mDocument = aDocument;
mScreenDPI = aScreenDPI;
mDebugFile = aDebugFile; // ok to be NULL
return NS_OK;
}
//-------------------------------------------------------
PRBool
nsPrintEngine::CheckBeforeDestroy()
{
if (mPrt && mPrt->mPreparingForPrint) {
mPrt->mDocWasToBeDestroyed = PR_TRUE;
return PR_TRUE;
}
return PR_FALSE;
}
//-------------------------------------------------------
nsresult
nsPrintEngine::Cancelled()
{
if (mPrt && mPrt->mPrintSettings) {
return mPrt->mPrintSettings->SetIsCancelled(PR_TRUE);
}
return NS_ERROR_FAILURE;
}
//-------------------------------------------------------
// Install our event listeners on the document to prevent
// some events from being processed while in PrintPreview
//
// No return code - if this fails, there isn't much we can do
void
nsPrintEngine::InstallPrintPreviewListener()
{
if (!mPrt->mPPEventListeners) {
nsCOMPtr<nsIDocShell> docShell = do_QueryReferent(mContainer);
nsCOMPtr<nsPIDOMWindow> win(do_GetInterface(docShell));
if (win) {
nsCOMPtr<nsIDOMEventTarget> target(do_QueryInterface(win->GetFrameElementInternal()));
mPrt->mPPEventListeners = new nsPrintPreviewListener(target);
mPrt->mPPEventListeners->AddListeners();
}
}
}
//----------------------------------------------------------------------
nsresult
nsPrintEngine::GetSeqFrameAndCountPagesInternal(nsPrintObject* aPO,
nsIFrame*& aSeqFrame,
PRInt32& aCount)
{
NS_ENSURE_ARG_POINTER(aPO);
// Finds the SimplePageSequencer frame
nsIPageSequenceFrame* seqFrame = aPO->mPresShell->GetPageSequenceFrame();
if (seqFrame) {
aSeqFrame = do_QueryFrame(seqFrame);
} else {
aSeqFrame = nsnull;
}
if (aSeqFrame == nsnull) return NS_ERROR_FAILURE;
// first count the total number of pages
aCount = 0;
nsIFrame* pageFrame = aSeqFrame->GetFirstChild(nsnull);
while (pageFrame != nsnull) {
aCount++;
pageFrame = pageFrame->GetNextSibling();
}
return NS_OK;
}
//-----------------------------------------------------------------
nsresult nsPrintEngine::GetSeqFrameAndCountPages(nsIFrame*& aSeqFrame, PRInt32& aCount)
{
NS_ASSERTION(mPrtPreview, "mPrtPreview can't be null!");
return GetSeqFrameAndCountPagesInternal(mPrtPreview->mPrintObject, aSeqFrame, aCount);
}
//---------------------------------------------------------------------------------
//-- Done: Methods needed by the DocViewer
//---------------------------------------------------------------------------------
//---------------------------------------------------------------------------------
//-- Section: nsIWebBrowserPrint
//---------------------------------------------------------------------------------
// Foward decl for Debug Helper Functions
#ifdef EXTENDED_DEBUG_PRINTING
static int RemoveFilesInDir(const char * aDir);
static void GetDocTitleAndURL(nsPrintObject* aPO, char *& aDocStr, char *& aURLStr);
static void DumpPrintObjectsTree(nsPrintObject * aPO, int aLevel, FILE* aFD);
static void DumpPrintObjectsList(nsTArray<nsPrintObject*> * aDocList);
static void RootFrameList(nsPresContext* aPresContext, FILE* out, PRInt32 aIndent);
static void DumpViews(nsIDocShell* aDocShell, FILE* out);
static void DumpLayoutData(char* aTitleStr, char* aURLStr,
nsPresContext* aPresContext,
nsDeviceContext * aDC, nsIFrame * aRootFrame,
nsIDocShell * aDocShell, FILE* aFD);
#endif
//--------------------------------------------------------------------------------
nsresult
nsPrintEngine::CommonPrint(PRBool aIsPrintPreview,
nsIPrintSettings* aPrintSettings,
nsIWebProgressListener* aWebProgressListener,
nsIDOMDocument* aDoc) {
nsresult rv = DoCommonPrint(aIsPrintPreview, aPrintSettings,
aWebProgressListener, aDoc);
if (NS_FAILED(rv)) {
if (aIsPrintPreview) {
SetIsCreatingPrintPreview(PR_FALSE);
SetIsPrintPreview(PR_FALSE);
} else {
SetIsPrinting(PR_FALSE);
}
if (mProgressDialogIsShown)
CloseProgressDialog(aWebProgressListener);
if (rv != NS_ERROR_ABORT && rv != NS_ERROR_OUT_OF_MEMORY)
ShowPrintErrorDialog(rv, !aIsPrintPreview);
delete mPrt;
mPrt = nsnull;
}
return rv;
}
nsresult
nsPrintEngine::DoCommonPrint(PRBool aIsPrintPreview,
nsIPrintSettings* aPrintSettings,
nsIWebProgressListener* aWebProgressListener,
nsIDOMDocument* aDoc)
{
nsresult rv;
if (aIsPrintPreview) {
// The WebProgressListener can be QI'ed to nsIPrintingPromptService
// then that means the progress dialog is already being shown.
nsCOMPtr<nsIPrintingPromptService> pps(do_QueryInterface(aWebProgressListener));
mProgressDialogIsShown = pps != nsnull;
if (mIsDoingPrintPreview) {
mOldPrtPreview = mPrtPreview;
mPrtPreview = nsnull;
}
} else {
mProgressDialogIsShown = PR_FALSE;
}
mPrt = new nsPrintData(aIsPrintPreview ? nsPrintData::eIsPrintPreview :
nsPrintData::eIsPrinting);
NS_ENSURE_TRUE(mPrt, NS_ERROR_OUT_OF_MEMORY);
// if they don't pass in a PrintSettings, then get the Global PS
mPrt->mPrintSettings = aPrintSettings;
if (!mPrt->mPrintSettings) {
rv = GetGlobalPrintSettings(getter_AddRefs(mPrt->mPrintSettings));
NS_ENSURE_SUCCESS(rv, rv);
}
rv = CheckForPrinters(mPrt->mPrintSettings);
NS_ENSURE_SUCCESS(rv, rv);
mPrt->mPrintSettings->SetIsCancelled(PR_FALSE);
mPrt->mPrintSettings->GetShrinkToFit(&mPrt->mShrinkToFit);
if (aIsPrintPreview) {
SetIsCreatingPrintPreview(PR_TRUE);
SetIsPrintPreview(PR_TRUE);
nsCOMPtr<nsIMarkupDocumentViewer> viewer =
do_QueryInterface(mDocViewerPrint);
if (viewer) {
viewer->SetTextZoom(1.0f);
viewer->SetFullZoom(1.0f);
viewer->SetMinFontSize(0);
}
}
// Create a print session and let the print settings know about it.
// The print settings hold an nsWeakPtr to the session so it does not
// need to be cleared from the settings at the end of the job.
// XXX What lifetime does the printSession need to have?
nsCOMPtr<nsIPrintSession> printSession;
if (!aIsPrintPreview) {
printSession = do_CreateInstance("@mozilla.org/gfx/printsession;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
mPrt->mPrintSettings->SetPrintSession(printSession);
}
if (aWebProgressListener != nsnull) {
mPrt->mPrintProgressListeners.AppendObject(aWebProgressListener);
}
// Get the currently focused window and cache it
// because the Print Dialog will "steal" focus and later when you try
// to get the currently focused windows it will be NULL
mPrt->mCurrentFocusWin = FindFocusedDOMWindow();
// Check to see if there is a "regular" selection
PRBool isSelection = IsThereARangeSelection(mPrt->mCurrentFocusWin);
// Get the docshell for this documentviewer
nsCOMPtr<nsIDocShell> webContainer(do_QueryReferent(mContainer, &rv));
NS_ENSURE_SUCCESS(rv, rv);
mPrt->mPrintObject = new nsPrintObject();
NS_ENSURE_TRUE(mPrt->mPrintObject, NS_ERROR_OUT_OF_MEMORY);
rv = mPrt->mPrintObject->Init(webContainer, aDoc, aIsPrintPreview);
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_TRUE(mPrt->mPrintDocList.AppendElement(mPrt->mPrintObject),
NS_ERROR_OUT_OF_MEMORY);
mPrt->mIsParentAFrameSet = IsParentAFrameSet(webContainer);
mPrt->mPrintObject->mFrameType = mPrt->mIsParentAFrameSet ? eFrameSet : eDoc;
// Build the "tree" of PrintObjects
nsCOMPtr<nsIDocShellTreeNode> parentAsNode =
do_QueryInterface(mPrt->mPrintObject->mDocShell);
BuildDocTree(parentAsNode, &mPrt->mPrintDocList, mPrt->mPrintObject);
if (!aIsPrintPreview) {
SetIsPrinting(PR_TRUE);
}
// XXX This isn't really correct...
if (!mPrt->mPrintObject->mDocument ||
!mPrt->mPrintObject->mDocument->GetRootElement())
return NS_ERROR_GFX_PRINTER_STARTDOC;
// Create the linkage from the sub-docs back to the content element
// in the parent document
MapContentToWebShells(mPrt->mPrintObject, mPrt->mPrintObject);
mPrt->mIsIFrameSelected = IsThereAnIFrameSelected(webContainer, mPrt->mCurrentFocusWin, mPrt->mIsParentAFrameSet);
// Setup print options for UI
if (mPrt->mIsParentAFrameSet) {
if (mPrt->mCurrentFocusWin) {
mPrt->mPrintSettings->SetHowToEnableFrameUI(nsIPrintSettings::kFrameEnableAll);
} else {
mPrt->mPrintSettings->SetHowToEnableFrameUI(nsIPrintSettings::kFrameEnableAsIsAndEach);
}
} else {
mPrt->mPrintSettings->SetHowToEnableFrameUI(nsIPrintSettings::kFrameEnableNone);
}
// Now determine how to set up the Frame print UI
mPrt->mPrintSettings->SetPrintOptions(nsIPrintSettings::kEnableSelectionRB, isSelection || mPrt->mIsIFrameSelected);
nsCOMPtr<nsIDeviceContextSpec> devspec
(do_CreateInstance("@mozilla.org/gfx/devicecontextspec;1", &rv));
NS_ENSURE_SUCCESS(rv, rv);
nsScriptSuppressor scriptSuppressor(this);
if (!aIsPrintPreview) {
#ifdef NS_DEBUG
mPrt->mDebugFilePtr = mDebugFile;
#endif
scriptSuppressor.Suppress();
PRBool printSilently;
mPrt->mPrintSettings->GetPrintSilent(&printSilently);
// Check prefs for a default setting as to whether we should print silently
printSilently =
Preferences::GetBool("print.always_print_silent", printSilently);
// Ask dialog to be Print Shown via the Plugable Printing Dialog Service
// This service is for the Print Dialog and the Print Progress Dialog
// If printing silently or you can't get the service continue on
if (!printSilently) {
nsCOMPtr<nsIPrintingPromptService> printPromptService(do_GetService(kPrintingPromptService));
if (printPromptService) {
nsIDOMWindow *domWin = mDocument->GetWindow();
NS_ENSURE_TRUE(domWin, NS_ERROR_FAILURE);
// Platforms not implementing a given dialog for the service may
// return NS_ERROR_NOT_IMPLEMENTED or an error code.
//
// NS_ERROR_NOT_IMPLEMENTED indicates they want default behavior
// Any other error code means we must bail out
//
nsCOMPtr<nsIWebBrowserPrint> wbp(do_QueryInterface(mDocViewerPrint));
rv = printPromptService->ShowPrintDialog(domWin, wbp,
mPrt->mPrintSettings);
//
// ShowPrintDialog triggers an event loop which means we can't assume
// that the state of this->{anything} matches the state we've checked
// above. Including that a given {thing} is non null.
if (NS_SUCCEEDED(rv)) {
// since we got the dialog and it worked then make sure we
// are telling GFX we want to print silent
printSilently = PR_TRUE;
if (mPrt && mPrt->mPrintSettings) {
// The user might have changed shrink-to-fit in the print dialog, so update our copy of its state
mPrt->mPrintSettings->GetShrinkToFit(&mPrt->mShrinkToFit);
}
} else if (rv == NS_ERROR_NOT_IMPLEMENTED) {
// This means the Dialog service was there,
// but they choose not to implement this dialog and
// are looking for default behavior from the toolkit
rv = NS_OK;
}
} else {
rv = NS_ERROR_GFX_NO_PRINTROMPTSERVICE;
}
} else {
// Call any code that requires a run of the event loop.
rv = mPrt->mPrintSettings->SetupSilentPrinting();
}
// Check explicitly for abort because it's expected
if (rv == NS_ERROR_ABORT)
return rv;
NS_ENSURE_SUCCESS(rv, rv);
}
rv = devspec->Init(nsnull, mPrt->mPrintSettings, aIsPrintPreview);
NS_ENSURE_SUCCESS(rv, rv);
mPrt->mPrintDC = new nsDeviceContext();
rv = mPrt->mPrintDC->InitForPrinting(devspec);
NS_ENSURE_SUCCESS(rv, rv);
if (aIsPrintPreview) {
mPrt->mPrintSettings->SetPrintFrameType(nsIPrintSettings::kFramesAsIs);
// override any UI that wants to PrintPreview any selection or page range
// we want to view every page in PrintPreview each time
mPrt->mPrintSettings->SetPrintRange(nsIPrintSettings::kRangeAllPages);
} else {
// Always check and set the print settings first and then fall back
// onto the PrintService if there isn't a PrintSettings
//
// Posiible Usage values:
// nsIPrintSettings::kUseInternalDefault
// nsIPrintSettings::kUseSettingWhenPossible
//
// NOTE: The consts are the same for PrintSettings and PrintSettings
PRInt16 printFrameTypeUsage = nsIPrintSettings::kUseSettingWhenPossible;
mPrt->mPrintSettings->GetPrintFrameTypeUsage(&printFrameTypeUsage);
// Ok, see if we are going to use our value and override the default
if (printFrameTypeUsage == nsIPrintSettings::kUseSettingWhenPossible) {
// Get the Print Options/Settings PrintFrameType to see what is preferred
PRInt16 printFrameType = nsIPrintSettings::kEachFrameSep;
mPrt->mPrintSettings->GetPrintFrameType(&printFrameType);
// Don't let anybody do something stupid like try to set it to
// kNoFrames when we are printing a FrameSet
if (printFrameType == nsIPrintSettings::kNoFrames) {
mPrt->mPrintFrameType = nsIPrintSettings::kEachFrameSep;
mPrt->mPrintSettings->SetPrintFrameType(mPrt->mPrintFrameType);
} else {
// First find out from the PrinService what options are available
// to us for Printing FrameSets
PRInt16 howToEnableFrameUI;
mPrt->mPrintSettings->GetHowToEnableFrameUI(&howToEnableFrameUI);
if (howToEnableFrameUI != nsIPrintSettings::kFrameEnableNone) {
switch (howToEnableFrameUI) {
case nsIPrintSettings::kFrameEnableAll:
mPrt->mPrintFrameType = printFrameType;
break;
case nsIPrintSettings::kFrameEnableAsIsAndEach:
if (printFrameType != nsIPrintSettings::kSelectedFrame) {
mPrt->mPrintFrameType = printFrameType;
} else { // revert back to a good value
mPrt->mPrintFrameType = nsIPrintSettings::kEachFrameSep;
}
break;
} // switch
mPrt->mPrintSettings->SetPrintFrameType(mPrt->mPrintFrameType);
}
}
} else {
mPrt->mPrintSettings->GetPrintFrameType(&mPrt->mPrintFrameType);
}
}
if (aIsPrintPreview) {
PRBool notifyOnInit = PR_FALSE;
ShowPrintProgress(PR_FALSE, notifyOnInit);
// Very important! Turn Off scripting
TurnScriptingOn(PR_FALSE);
if (!notifyOnInit) {
rv = FinishPrintPreview();
} else {
rv = NS_OK;
}
NS_ENSURE_SUCCESS(rv, rv);
} else {
PRBool doNotify;
ShowPrintProgress(PR_TRUE, doNotify);
if (!doNotify) {
// Print listener setup...
mPrt->OnStartPrinting();
rv = DocumentReadyForPrinting();
NS_ENSURE_SUCCESS(rv, rv);
}
}
// We will enable scripting later after printing has finished.
scriptSuppressor.Disconnect();
return NS_OK;
}
//---------------------------------------------------------------------------------
NS_IMETHODIMP
nsPrintEngine::Print(nsIPrintSettings* aPrintSettings,
nsIWebProgressListener* aWebProgressListener)
{
// If we have a print preview document, use that instead of the original
// mDocument. That way animated images etc. get printed using the same state
// as in print preview.
nsCOMPtr<nsIDOMDocument> doc =
do_QueryInterface(mPrtPreview && mPrtPreview->mPrintObject ?
mPrtPreview->mPrintObject->mDocument : mDocument);
return CommonPrint(PR_FALSE, aPrintSettings, aWebProgressListener, doc);
}
NS_IMETHODIMP
nsPrintEngine::PrintPreview(nsIPrintSettings* aPrintSettings,
nsIDOMWindow *aChildDOMWin,
nsIWebProgressListener* aWebProgressListener)
{
// Get the DocShell and see if it is busy
// (We can't Print Preview this document if it is still busy)
nsCOMPtr<nsIDocShell> docShell(do_QueryReferent(mContainer));
NS_ENSURE_STATE(docShell);
PRUint32 busyFlags = nsIDocShell::BUSY_FLAGS_NONE;
if (NS_FAILED(docShell->GetBusyFlags(&busyFlags)) ||
busyFlags != nsIDocShell::BUSY_FLAGS_NONE) {
CloseProgressDialog(aWebProgressListener);
ShowPrintErrorDialog(NS_ERROR_GFX_PRINTER_DOC_IS_BUSY_PP, PR_FALSE);
return NS_ERROR_FAILURE;
}
NS_ENSURE_STATE(aChildDOMWin);
nsCOMPtr<nsIDOMDocument> doc;
aChildDOMWin->GetDocument(getter_AddRefs(doc));
NS_ENSURE_STATE(doc);
// Document is not busy -- go ahead with the Print Preview
return CommonPrint(PR_TRUE, aPrintSettings, aWebProgressListener, doc);
}
//----------------------------------------------------------------------------------
/* readonly attribute boolean isFramesetDocument; */
NS_IMETHODIMP
nsPrintEngine::GetIsFramesetDocument(PRBool *aIsFramesetDocument)
{
nsCOMPtr<nsIDocShell> webContainer(do_QueryReferent(mContainer));
*aIsFramesetDocument = IsParentAFrameSet(webContainer);
return NS_OK;
}
//----------------------------------------------------------------------------------
/* readonly attribute boolean isIFrameSelected; */
NS_IMETHODIMP
nsPrintEngine::GetIsIFrameSelected(PRBool *aIsIFrameSelected)
{
*aIsIFrameSelected = PR_FALSE;
// Get the docshell for this documentviewer
nsCOMPtr<nsIDocShell> webContainer(do_QueryReferent(mContainer));
// Get the currently focused window
nsCOMPtr<nsIDOMWindow> currentFocusWin = FindFocusedDOMWindow();
if (currentFocusWin && webContainer) {
// Get whether the doc contains a frameset
// Also, check to see if the currently focus docshell
// is a child of this docshell
PRPackedBool isParentFrameSet;
*aIsIFrameSelected = IsThereAnIFrameSelected(webContainer, currentFocusWin, isParentFrameSet);
}
return NS_OK;
}
//----------------------------------------------------------------------------------
/* readonly attribute boolean isRangeSelection; */
NS_IMETHODIMP
nsPrintEngine::GetIsRangeSelection(PRBool *aIsRangeSelection)
{
// Get the currently focused window
nsCOMPtr<nsIDOMWindow> currentFocusWin = FindFocusedDOMWindow();
*aIsRangeSelection = IsThereARangeSelection(currentFocusWin);
return NS_OK;
}
//----------------------------------------------------------------------------------
/* readonly attribute boolean isFramesetFrameSelected; */
NS_IMETHODIMP
nsPrintEngine::GetIsFramesetFrameSelected(PRBool *aIsFramesetFrameSelected)
{
// Get the currently focused window
nsCOMPtr<nsIDOMWindow> currentFocusWin = FindFocusedDOMWindow();
*aIsFramesetFrameSelected = currentFocusWin != nsnull;
return NS_OK;
}
//----------------------------------------------------------------------------------
/* readonly attribute long printPreviewNumPages; */
NS_IMETHODIMP
nsPrintEngine::GetPrintPreviewNumPages(PRInt32 *aPrintPreviewNumPages)
{
NS_ENSURE_ARG_POINTER(aPrintPreviewNumPages);
nsIFrame* seqFrame = nsnull;
*aPrintPreviewNumPages = 0;
if (!mPrtPreview ||
NS_FAILED(GetSeqFrameAndCountPagesInternal(mPrtPreview->mPrintObject, seqFrame, *aPrintPreviewNumPages))) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
//----------------------------------------------------------------------------------
// Enumerate all the documents for their titles
NS_IMETHODIMP
nsPrintEngine::EnumerateDocumentNames(PRUint32* aCount,
PRUnichar*** aResult)
{
NS_ENSURE_ARG(aCount);
NS_ENSURE_ARG_POINTER(aResult);
*aCount = 0;
*aResult = nsnull;
PRInt32 numDocs = mPrt->mPrintDocList.Length();
PRUnichar** array = (PRUnichar**) nsMemory::Alloc(numDocs * sizeof(PRUnichar*));
if (!array)
return NS_ERROR_OUT_OF_MEMORY;
for (PRInt32 i=0;i<numDocs;i++) {
nsPrintObject* po = mPrt->mPrintDocList.ElementAt(i);
NS_ASSERTION(po, "nsPrintObject can't be null!");
PRUnichar * docTitleStr;
PRUnichar * docURLStr;
GetDocumentTitleAndURL(po->mDocument, &docTitleStr, &docURLStr);
// Use the URL if the doc is empty
if (!docTitleStr || !*docTitleStr) {
if (docURLStr && *docURLStr) {
nsMemory::Free(docTitleStr);
docTitleStr = docURLStr;
} else {
nsMemory::Free(docURLStr);
}
docURLStr = nsnull;
if (!docTitleStr || !*docTitleStr) {
CleanupDocTitleArray(array, i);
return NS_ERROR_OUT_OF_MEMORY;
}
}
array[i] = docTitleStr;
if (docURLStr) nsMemory::Free(docURLStr);
}
*aCount = numDocs;
*aResult = array;
return NS_OK;
}
//----------------------------------------------------------------------------------
/* readonly attribute nsIPrintSettings globalPrintSettings; */
nsresult
nsPrintEngine::GetGlobalPrintSettings(nsIPrintSettings **aGlobalPrintSettings)
{
NS_ENSURE_ARG_POINTER(aGlobalPrintSettings);
nsresult rv = NS_ERROR_FAILURE;
nsCOMPtr<nsIPrintSettingsService> printSettingsService =
do_GetService(sPrintSettingsServiceContractID, &rv);
if (NS_SUCCEEDED(rv)) {
rv = printSettingsService->GetGlobalPrintSettings(aGlobalPrintSettings);
}
return rv;
}
//----------------------------------------------------------------------------------
/* readonly attribute boolean doingPrint; */
NS_IMETHODIMP
nsPrintEngine::GetDoingPrint(PRBool *aDoingPrint)
{
NS_ENSURE_ARG_POINTER(aDoingPrint);
*aDoingPrint = mIsDoingPrinting;
return NS_OK;
}
//----------------------------------------------------------------------------------
/* readonly attribute boolean doingPrintPreview; */
NS_IMETHODIMP
nsPrintEngine::GetDoingPrintPreview(PRBool *aDoingPrintPreview)
{
NS_ENSURE_ARG_POINTER(aDoingPrintPreview);
*aDoingPrintPreview = mIsDoingPrintPreview;
return NS_OK;
}
//----------------------------------------------------------------------------------
/* readonly attribute nsIPrintSettings currentPrintSettings; */
NS_IMETHODIMP
nsPrintEngine::GetCurrentPrintSettings(nsIPrintSettings * *aCurrentPrintSettings)
{
NS_ENSURE_ARG_POINTER(aCurrentPrintSettings);
if (mPrt) {
*aCurrentPrintSettings = mPrt->mPrintSettings;
} else if (mPrtPreview) {
*aCurrentPrintSettings = mPrtPreview->mPrintSettings;
} else {
*aCurrentPrintSettings = nsnull;
}
NS_IF_ADDREF(*aCurrentPrintSettings);
return NS_OK;
}
//-----------------------------------------------------------------
//-- Section: Pre-Reflow Methods
//-----------------------------------------------------------------
//---------------------------------------------------------------------
// This method checks to see if there is at least one printer defined
// and if so, it sets the first printer in the list as the default name
// in the PrintSettings which is then used for Printer Preview
nsresult
nsPrintEngine::CheckForPrinters(nsIPrintSettings* aPrintSettings)
{
#if defined(XP_MACOSX) || defined(ANDROID)
// Mac doesn't support retrieving a printer list.
return NS_OK;
#else
NS_ENSURE_ARG_POINTER(aPrintSettings);
// See if aPrintSettings already has a printer
nsXPIDLString printerName;
nsresult rv = aPrintSettings->GetPrinterName(getter_Copies(printerName));
if (NS_SUCCEEDED(rv) && !printerName.IsEmpty()) {
return NS_OK;
}
// aPrintSettings doesn't have a printer set. Try to fetch the default.
nsCOMPtr<nsIPrintSettingsService> printSettingsService =
do_GetService(sPrintSettingsServiceContractID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
rv = printSettingsService->GetDefaultPrinterName(getter_Copies(printerName));
if (NS_SUCCEEDED(rv) && !printerName.IsEmpty()) {
rv = aPrintSettings->SetPrinterName(printerName.get());
}
return rv;
#endif
}
//----------------------------------------------------------------------
// Set up to use the "pluggable" Print Progress Dialog