зеркало из https://github.com/mozilla/gecko-dev.git
306 строки
12 KiB
C++
306 строки
12 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 "nsIDocument.h"
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#include "nsIDOMWindow.h"
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#include "nsIObserver.h"
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// Classes
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class nsPagePrintTimer;
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class nsIDocShellTreeNode;
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class nsIDeviceContext;
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class nsIDocumentViewerPrint;
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class nsPrintObject;
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class nsIDocShell;
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class nsIPageSequenceFrame;
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//------------------------------------------------------------------------
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// nsPrintEngine Class
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//
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//------------------------------------------------------------------------
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class nsPrintEngine : public nsIObserver
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{
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public:
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// nsISupports interface...
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NS_DECL_ISUPPORTS
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// nsIObserver
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NS_DECL_NSIOBSERVER
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// Old nsIWebBrowserPrint methods; not cleaned up yet
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NS_IMETHOD Print(nsIPrintSettings* aPrintSettings,
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nsIWebProgressListener* aWebProgressListener);
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NS_IMETHOD PrintPreview(nsIPrintSettings* aPrintSettings,
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nsIDOMWindow *aChildDOMWin,
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nsIWebProgressListener* aWebProgressListener);
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NS_IMETHOD GetIsFramesetDocument(PRBool *aIsFramesetDocument);
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NS_IMETHOD GetIsIFrameSelected(PRBool *aIsIFrameSelected);
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NS_IMETHOD GetIsRangeSelection(PRBool *aIsRangeSelection);
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NS_IMETHOD GetIsFramesetFrameSelected(PRBool *aIsFramesetFrameSelected);
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NS_IMETHOD GetPrintPreviewNumPages(PRInt32 *aPrintPreviewNumPages);
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NS_IMETHOD EnumerateDocumentNames(PRUint32* aCount, PRUnichar*** aResult);
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static nsresult GetGlobalPrintSettings(nsIPrintSettings** aPrintSettings);
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NS_IMETHOD GetDoingPrint(PRBool *aDoingPrint);
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NS_IMETHOD GetDoingPrintPreview(PRBool *aDoingPrintPreview);
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NS_IMETHOD GetCurrentPrintSettings(nsIPrintSettings **aCurrentPrintSettings);
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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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~nsPrintEngine();
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void Destroy();
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void DestroyPrintingData();
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nsresult Initialize(nsIDocumentViewerPrint* aDocViewerPrint,
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nsISupports* aContainer,
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nsIDocument* aDocument,
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nsIDeviceContext* aDevContext,
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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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//
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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();
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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);
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void SetPrintPO(nsPrintObject* aPO, PRBool aPrint);
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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(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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nsTArray<nsPrintObject*> * aDocList,
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nsPrintObject * aPO);
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nsresult ReflowDocList(nsPrintObject * aPO, PRBool aSetPixelScale);
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nsresult ReflowPrintObject(nsPrintObject * aPO);
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void CheckForChildFrameSets(nsPrintObject* aPO);
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void CalcNumPrintablePages(PRInt32& aNumPages);
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void ShowPrintProgress(PRBool aIsForPrinting, PRBool& aDoNotify);
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nsresult CleanupOnFailure(nsresult aResult, PRBool aIsPrinting);
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// If FinishPrintPreview() fails, caller may need to reset the state of the
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// object, for example by calling CleanupOnFailure().
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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(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(nsPrintObject* aPO);
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PRBool IsWindowsInOurSubTree(nsIDOMWindow * aDOMWindow);
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static 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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static 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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void GetDisplayTitleAndURL(nsPrintObject* aPO,
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PRUnichar** aTitle,
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PRUnichar** aURLStr,
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eDocTitleDefault aDefType);
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static void ShowPrintErrorDialog(nsresult printerror,
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PRBool aIsPrinting = PR_TRUE);
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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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nsIWidget* GetPrintPreviewWindow() {return mPrtPreview->mPrintObject->mWindow;}
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nsIViewManager* GetPrintPreviewViewManager() {return mPrtPreview->mPrintObject->mViewManager;}
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float GetPrintPreviewScale() { return mPrtPreview->mPrintObject->
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mPresContext->GetPrintPreviewScale(); }
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static nsIPresShell* GetPresShellFor(nsIDocShell* aDocShell);
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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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protected:
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nsresult CommonPrint(PRBool aIsPrintPreview, nsIPrintSettings* aPrintSettings,
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nsIWebProgressListener* aWebProgressListener);
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nsresult DoCommonPrint(PRBool aIsPrintPreview, nsIPrintSettings* aPrintSettings,
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nsIWebProgressListener* aWebProgressListener);
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void FirePrintCompletionEvent();
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static 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 void MapContentForPO(nsPrintObject* aPO, nsIContent* aContent);
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static void MapContentToWebShells(nsPrintObject* aRootPO, nsPrintObject* aPO);
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static void SetPrintAsIs(nsPrintObject* aPO, PRBool aAsIs = PR_TRUE);
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// Static member variables
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PRPackedBool mIsCreatingPrintPreview;
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PRPackedBool mIsDoingPrinting;
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PRPackedBool mIsDoingPrintPreview; // per DocumentViewer
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PRPackedBool mProgressDialogIsShown;
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nsCOMPtr<nsIDocumentViewerPrint> mDocViewerPrint;
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nsISupports* mContainer; // [WEAK] it owns me!
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nsIDeviceContext* mDeviceContext; // not ref counted
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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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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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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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#endif /* nsPrintEngine_h___ */
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