gecko-dev/layout/printing/nsPrintData.h

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#ifndef nsPrintData_h___
#define nsPrintData_h___

#include "nsPrintObject.h"

// Interfaces
#include "nsIDeviceContext.h"
#include "nsIDocument.h"
#include "nsIDOMWindow.h"
#include "nsIObserver.h"
#include "nsIPrintProgress.h"
#include "nsIPrintProgressParams.h"
#include "nsIPrintOptions.h"
#include "nsIPrintSettings.h"
#include "nsIWebProgressListener.h"
#include "nsIPrintSession.h"

// Other Includes
#include "nsPrintPreviewListener.h"
#include "nsIDocShellTreeNode.h"

// Classes
class nsIPageSequenceFrame;
class nsPagePrintTimer;

// Special Interfaces
#include "nsIDocumentViewer.h"
#include "nsIDocumentViewerPrint.h"

//---------------------------------------------------
//-- Object for Caching the Presentation
//---------------------------------------------------
class CachedPresentationObj
{
public:
  CachedPresentationObj(nsIPresShell* aShell, nsIPresContext* aPC,
                        nsIViewManager* aVM, nsIWidget* aW):
    mWindow(aW), mViewManager(aVM), mPresShell(aShell), mPresContext(aPC)
  {
  }

  // The order here is important because the order of destruction is the
  // reverse of the order listed here, and the view manager must outlive
  // the pres shell.
  nsCOMPtr<nsIWidget>      mWindow;
  nsCOMPtr<nsIViewManager> mViewManager;
  nsCOMPtr<nsIPresShell>   mPresShell;
  nsCOMPtr<nsIPresContext> mPresContext;
};

//------------------------------------------------------------------------
// nsPrintData Class
//
// mPreparingForPrint - indicates that we have started Printing but 
//   have not gone to the timer to start printing the pages. It gets turned 
//   off right before we go to the timer.
//
// mDocWasToBeDestroyed - Gets set when "someone" tries to unload the document
//   while we were prparing to Print. This typically happens if a user starts 
//   to print while a page is still loading. If they start printing and pause 
//   at the print dialog and then the page comes in, we then abort printing 
//   because the document is no longer stable.
// 
//------------------------------------------------------------------------
class nsPrintData {
public:

  typedef enum {eIsPrinting, eIsPrintPreview } ePrintDataType;

  // This enum tells indicates what the default should be for the title
  // if the title from the document is null
  enum eDocTitleDefault {
    eDocTitleDefNone,
    eDocTitleDefBlank,
    eDocTitleDefURLDoc
  };


  nsPrintData(ePrintDataType aType);
  ~nsPrintData(); // non-virtual

  // Listener Helper Methods
  void OnEndPrinting();
  void OnStartPrinting();
  static void DoOnProgressChange(nsVoidArray& aListeners,
                                 PRInt32      aProgess,
                                 PRInt32      aMaxProgress,
                                 PRBool       aDoStartStop = PR_FALSE,
                                 PRInt32      aFlag = 0);


  ePrintDataType               mType;            // the type of data this is (Printing or Print Preview)
  nsCOMPtr<nsIDeviceContext>   mPrintDC;
  nsIView                     *mPrintView;
  FILE                        *mDebugFilePtr;    // a file where information can go to when printing

  nsPrintObject *                mPrintObject;
  nsPrintObject *                mSelectedPO;

  nsVoidArray                      mPrintProgressListeners;
  nsCOMPtr<nsIWebProgressListener> mPrintProgressListener;
  nsCOMPtr<nsIPrintProgress>       mPrintProgress;
  nsCOMPtr<nsIPrintProgressParams> mPrintProgressParams;
  PRBool                           mShowProgressDialog;    // means we should try to show it
  PRPackedBool                     mProgressDialogIsShown; // means it is already being shown

  nsCOMPtr<nsIDOMWindow> mCurrentFocusWin; // cache a pointer to the currently focused window

  nsVoidArray*                mPrintDocList;
  nsCOMPtr<nsIDeviceContext>  mPrintDocDC;
  nsCOMPtr<nsIDOMWindow>      mPrintDocDW;
  PRPackedBool                mIsIFrameSelected;
  PRPackedBool                mIsParentAFrameSet;
  PRPackedBool                mPrintingAsIsSubDoc;
  PRPackedBool                mOnStartSent;
  PRPackedBool                mIsAborted;           // tells us the document is being aborted
  PRPackedBool                mPreparingForPrint;   // see comments above
  PRPackedBool                mDocWasToBeDestroyed; // see comments above
  PRBool                      mShrinkToFit;
  PRInt16                     mPrintFrameType;
  PRInt32                     mNumPrintableDocs;
  PRInt32                     mNumDocsPrinted;
  PRInt32                     mNumPrintablePages;
  PRInt32                     mNumPagesPrinted;
  float                       mShrinkRatio;
  float                       mOrigDCScale;
  float                       mOrigTextZoom;
  float                       mOrigZoom;

  nsCOMPtr<nsIPrintSession>   mPrintSession;
  nsCOMPtr<nsIPrintSettings>  mPrintSettings;
  nsCOMPtr<nsIPrintOptions>   mPrintOptions;
  nsPrintPreviewListener*     mPPEventListeners;

  PRUnichar*            mBrandName; //  needed as a substitute name for a document

  nsPagePrintTimer* mPagePrintTimer;
  nsIPageSequenceFrame* mPageSeqFrame;

private:
  nsPrintData() {}
  nsPrintData& operator=(const nsPrintData& aOther); // not implemented

};

#endif /* nsPrintData_h___ */