mirror of
https://github.com/rn10950/RetroZilla.git
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408 lines
16 KiB
C++
408 lines
16 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsPrintEngine_h___
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#define nsPrintEngine_h___
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#include "nsCOMPtr.h"
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#include "nsPrintObject.h"
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#include "nsPrintData.h"
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// Interfaces
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#include "nsIDeviceContext.h"
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#include "nsIDocument.h"
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#include "nsIDOMWindow.h"
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#include "nsIObserver.h"
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#include "nsIPrintProgress.h"
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#include "nsIPrintProgressParams.h"
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#include "nsIPrintOptions.h"
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#include "nsIPrintSettings.h"
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#include "nsIWebProgressListener.h"
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#include "nsISelectionListener.h"
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// Other Includes
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#include "nsPrintPreviewListener.h"
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#include "nsIDocShellTreeNode.h"
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// Classes
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class nsIPageSequenceFrame;
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class nsPagePrintTimer;
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// Special Interfaces
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#include "nsIWebBrowserPrint.h"
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#include "nsIDocumentViewer.h"
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#include "nsIDocumentViewerPrint.h"
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#ifdef MOZ_LAYOUTDEBUG
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#include "nsIDebugObject.h"
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#endif
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//------------------------------------------------------------------------
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// nsPrintEngine Class
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//
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// mPreparingForPrint - indicates that we have started Printing but
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// have not gone to the timer to start printing the pages. It gets turned
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// off right before we go to the timer.
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//
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// mDocWasToBeDestroyed - Gets set when "someone" tries to unload the document
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// while we were prparing to Print. This typically happens if a user starts
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// to print while a page is still loading. If they start printing and pause
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// at the print dialog and then the page comes in, we then abort printing
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// because the document is no longer stable.
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//
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//------------------------------------------------------------------------
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class nsPrintEngine : public nsIWebBrowserPrint, public nsIObserver
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{
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public:
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//NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW
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// nsISupports interface...
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NS_DECL_ISUPPORTS
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// nsIWebBrowserPrint
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NS_DECL_NSIWEBBROWSERPRINT
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// nsIObserver
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NS_DECL_NSIOBSERVER
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// This enum tells indicates what the default should be for the title
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// if the title from the document is null
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enum eDocTitleDefault {
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eDocTitleDefNone,
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eDocTitleDefBlank,
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eDocTitleDefURLDoc
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};
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nsPrintEngine();
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virtual ~nsPrintEngine();
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void Destroy();
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void DestroyPrintingData();
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nsresult Initialize(nsIDocumentViewer* aDocViewer,
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nsIDocumentViewerPrint* aDocViewerPrint,
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nsISupports* aContainer,
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nsIDocument* aDocument,
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nsIDeviceContext* aDevContext,
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nsPresContext* aPresContext,
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nsIWidget* aWindow,
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nsIWidget* aParentWidget,
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FILE* aDebugFile);
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nsresult GetSeqFrameAndCountPages(nsIFrame*& aSeqFrame, PRInt32& aCount);
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PRBool IsOldPrintPreviewPres()
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{
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return mOldPrtPreview != nsnull;
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}
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//
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// The following three methods are used for printing...
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//
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nsresult DocumentReadyForPrinting();
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nsresult GetSelectionDocument(nsIDeviceContextSpec * aDevSpec,
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nsIDocument ** aNewDoc);
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nsresult SetupToPrintContent(nsIDeviceContext* aDContext,
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nsIDOMWindow* aCurrentFocusedDOMWin);
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nsresult EnablePOsForPrinting();
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nsPrintObject* FindSmallestSTF();
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PRBool PrintDocContent(nsPrintObject* aPO, nsresult& aStatus);
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nsresult DoPrint(nsPrintObject * aPO, PRBool aDoSyncPrinting,
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PRBool& aDonePrinting);
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void SetPrintAsIs(nsPrintObject* aPO, PRBool aAsIs = PR_TRUE);
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enum ePrintFlags {
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eSetPrintFlag = 1U,
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eSetHiddenFlag = 2U
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};
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void SetPrintPO(nsPrintObject* aPO, PRBool aPrint,
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PRBool aIsHidden = PR_FALSE,
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PRUint32 aFlags = eSetPrintFlag);
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void TurnScriptingOn(PRBool aDoTurnOn);
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PRBool CheckDocumentForPPCaching();
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void InstallPrintPreviewListener();
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// nsIDocumentViewerPrint Printing Methods
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PRBool PrintPage(nsPresContext* aPresContext,
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nsIPrintSettings* aPrintSettings,
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nsPrintObject* aPOect, PRBool& aInRange);
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PRBool DonePrintingPages(nsPrintObject* aPO, nsresult aResult);
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//---------------------------------------------------------------------
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void BuildDocTree(nsIDocShellTreeNode * aParentNode,
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nsVoidArray * aDocList,
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nsPrintObject * aPO);
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nsresult ReflowDocList(nsPrintObject * aPO, PRBool aSetPixelScale,
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PRBool aDoCalcShrink);
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void SetClipRect(nsPrintObject* aPO,
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const nsRect& aClipRect,
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nscoord aOffsetX,
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nscoord aOffsetY,
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PRBool aDoingSetClip);
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nsresult ReflowPrintObject(nsPrintObject * aPO, PRBool aDoCalcShrink);
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nsresult CalcPageFrameLocation(nsIPresShell * aPresShell,
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nsPrintObject* aPO);
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nsPrintObject * FindPrintObjectByDS(nsPrintObject* aPO, nsIDocShell * aDocShell);
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void MapContentForPO(nsPrintObject* aRootObject,
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nsIPresShell* aPresShell,
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nsIContent* aContent);
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void MapContentToWebShells(nsPrintObject* aRootPO, nsPrintObject* aPO);
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void CheckForChildFrameSets(nsPrintObject* aPO);
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nsresult MapSubDocFrameLocations(nsPrintObject* aPO);
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void CalcNumPrintableDocsAndPages(PRInt32& aNumDocs, PRInt32& aNumPages);
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void DoProgressForAsIsFrames();
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void DoProgressForSeparateFrames();
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void ShowPrintProgress(PRBool aIsForPrinting, PRBool& aDoNotify);
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nsresult CleanupOnFailure(nsresult aResult, PRBool aIsPrinting);
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nsresult FinishPrintPreview();
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static void CloseProgressDialog(nsIWebProgressListener* aWebProgressListener);
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void SetDocAndURLIntoProgress(nsPrintObject* aPO,
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nsIPrintProgressParams* aParams);
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void ElipseLongString(PRUnichar *& aStr, const PRUint32 aLen, PRBool aDoFront);
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nsresult CheckForPrinters(nsIPrintOptions* aPrintOptions,
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nsIPrintSettings* aPrintSettings);
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void CleanupDocTitleArray(PRUnichar**& aArray, PRInt32& aCount);
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PRBool IsThereARangeSelection(nsIDOMWindow * aDOMWin);
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//---------------------------------------------------------------------
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// Timer Methods
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nsresult StartPagePrintTimer(nsPresContext * aPresContext,
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nsIPrintSettings* aPrintSettings,
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nsPrintObject* aPO,
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PRUint32 aDelay);
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PRBool IsWindowsInOurSubTree(nsIDOMWindow * aDOMWindow);
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PRBool IsParentAFrameSet(nsIDocShell * aParent);
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PRBool IsThereAnIFrameSelected(nsIDocShell* aDocShell,
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nsIDOMWindow* aDOMWin,
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PRPackedBool& aIsParentFrameSet);
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nsPrintObject* FindPrintObjectByDOMWin(nsPrintObject* aParentObject,
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nsIDOMWindow* aDOMWin);
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// get the currently infocus frame for the document viewer
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already_AddRefed<nsIDOMWindow> FindFocusedDOMWindow();
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//---------------------------------------------------------------------
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// Static Methods
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//---------------------------------------------------------------------
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static void GetDocumentTitleAndURL(nsIDocument* aDoc,
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PRUnichar** aTitle,
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PRUnichar** aURLStr);
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static void GetDisplayTitleAndURL(nsPrintObject* aPO,
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nsIPrintSettings* aPrintSettings,
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const PRUnichar* aBrandName,
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PRUnichar** aTitle,
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PRUnichar** aURLStr,
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eDocTitleDefault aDefType = eDocTitleDefNone);
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static void ShowPrintErrorDialog(nsresult printerror,
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PRBool aIsPrinting = PR_TRUE);
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static void GetPresShellAndRootContent(nsIDocShell * aDocShell,
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nsIPresShell** aPresShell,
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nsIContent** aContent);
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static PRBool HasFramesetChild(nsIContent* aContent);
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PRBool CheckBeforeDestroy();
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nsresult Cancelled();
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nsresult ShowDocList(PRBool aShow);
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void GetNewPresentation(nsCOMPtr<nsIPresShell>& aShell,
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nsCOMPtr<nsPresContext>& aPC,
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nsCOMPtr<nsIViewManager>& aVM,
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nsCOMPtr<nsIWidget>& aW);
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// CachedPresentationObj is used to cache the presentation
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// so we can bring it back later
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PRBool HasCachedPres()
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{
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return mIsCachingPresentation && mCachedPresObj;
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}
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PRBool IsCachingPres()
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{
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return mIsCachingPresentation;
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}
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void SetCacheOldPres(PRBool aDoCache)
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{
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mIsCachingPresentation = aDoCache;
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}
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void CachePresentation(nsIPresShell* aShell, nsPresContext* aPC,
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nsIViewManager* aVM, nsIWidget* aW);
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void GetCachedPresentation(nsCOMPtr<nsIPresShell>& aShell,
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nsCOMPtr<nsPresContext>& aPC,
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nsCOMPtr<nsIViewManager>& aVM,
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nsCOMPtr<nsIWidget>& aW);
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static nsIPresShell* GetPresShellFor(nsIDocShell* aDocShell);
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void SetDialogParent(nsIDOMWindow* aDOMWin)
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{
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mDialogParentWin = aDOMWin;
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}
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// These calls also update the DocViewer
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void SetIsPrinting(PRBool aIsPrinting);
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PRBool GetIsPrinting()
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{
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return mIsDoingPrinting;
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}
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void SetIsPrintPreview(PRBool aIsPrintPreview);
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PRBool GetIsPrintPreview()
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{
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return mIsDoingPrintPreview;
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}
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void SetIsCreatingPrintPreview(PRBool aIsCreatingPrintPreview)
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{
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mIsCreatingPrintPreview = aIsCreatingPrintPreview;
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}
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PRBool GetIsCreatingPrintPreview()
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{
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return mIsCreatingPrintPreview;
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}
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#ifdef MOZ_LAYOUTDEBUG
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static nsresult TestRuntimeErrorCondition(PRInt16 aRuntimeID,
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nsresult aCurrentErrorCode,
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nsresult aNewErrorCode);
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static PRBool IsDoingRuntimeTesting();
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static void InitializeTestRuntimeError();
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protected:
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static PRBool mIsDoingRuntimeTesting;
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static nsCOMPtr<nsIDebugObject> mLayoutDebugObj; // always de-referenced with the destructor
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#endif
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protected:
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void FirePrintCompletionEvent();
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nsresult ShowDocListInternal(nsPrintObject* aPO, PRBool aShow);
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nsresult GetSeqFrameAndCountPagesInternal(nsPrintObject* aPO,
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nsIFrame*& aSeqFrame,
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PRInt32& aCount);
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static nsresult FindSelectionBoundsWithList(nsPresContext* aPresContext,
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nsIRenderingContext& aRC,
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nsIAtom* aList,
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nsIFrame * aParentFrame,
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nsRect& aRect,
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nsIFrame *& aStartFrame,
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nsRect& aStartRect,
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nsIFrame *& aEndFrame,
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nsRect& aEndRect);
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static nsresult FindSelectionBounds(nsPresContext* aPresContext,
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nsIRenderingContext& aRC,
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nsIFrame * aParentFrame,
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nsRect& aRect,
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nsIFrame *& aStartFrame,
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nsRect& aStartRect,
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nsIFrame *& aEndFrame,
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nsRect& aEndRect);
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static nsresult GetPageRangeForSelection(nsIPresShell * aPresShell,
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nsPresContext* aPresContext,
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nsIRenderingContext& aRC,
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nsISelection* aSelection,
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nsIPageSequenceFrame* aPageSeqFrame,
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nsIFrame** aStartFrame,
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PRInt32& aStartPageNum,
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nsRect& aStartRect,
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nsIFrame** aEndFrame,
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PRInt32& aEndPageNum,
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nsRect& aEndRect);
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static nsIFrame * FindFrameByType(nsPresContext* aPresContext,
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nsIFrame * aParentFrame,
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nsIAtom * aType,
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nsRect& aRect,
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nsRect& aChildRect);
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// Static memeber variables
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PRBool mIsCreatingPrintPreview;
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PRBool mIsDoingPrinting;
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nsIDocumentViewerPrint* mDocViewerPrint; // [WEAK] it owns me!
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nsIDocumentViewer* mDocViewer; // [WEAK] it owns me!
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nsISupports* mContainer; // [WEAK] it owns me!
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nsIDeviceContext* mDeviceContext; // not ref counted
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nsPresContext* mPresContext; // not ref counted
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nsCOMPtr<nsIWidget> mWindow;
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nsPrintData* mPrt;
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nsPagePrintTimer* mPagePrintTimer;
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nsIPageSequenceFrame* mPageSeqFrame;
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// Print Preview
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PRBool mIsDoingPrintPreview; // per DocumentViewer
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nsCOMPtr<nsIWidget> mParentWidget;
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nsPrintData* mPrtPreview;
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nsPrintData* mOldPrtPreview;
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nsCOMPtr<nsIDocument> mDocument;
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nsCOMPtr<nsIDOMWindow> mDialogParentWin;
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PRBool mIsCachingPresentation;
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CachedPresentationObj* mCachedPresObj;
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FILE* mDebugFile;
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private:
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nsPrintEngine& operator=(const nsPrintEngine& aOther); // not implemented
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};
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#ifdef MOZ_LAYOUTDEBUG
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#define INIT_RUNTIME_ERROR_CHECKING() nsPrintEngine::InitializeTestRuntimeError();
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#define CHECK_RUNTIME_ERROR_CONDITION(_name, _currerr, _newerr) \
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if (nsPrintEngine::IsDoingRuntimeTesting()) { \
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_currerr = nsPrintEngine::TestRuntimeErrorCondition(_name, _currerr, _newerr); \
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}
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#else
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#define CHECK_RUNTIME_ERROR_CONDITION(_name, _currerr, _newerr)
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#define INIT_RUNTIME_ERROR_CHECKING()
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#endif
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#endif /* nsPrintEngine_h___ */
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