layout/printing/nsPrintData.h
author Geoff Lankow <geoff@darktrojan.net>
Sat, 11 Jun 2011 00:44:53 +1200
changeset 71412 f47664f19b08a452b40c735e100bf97bd12caa53
parent 68553 3237cf9bc6f8e9573ca383e60fac07ad16fdba4c
child 79146 e7854b4d29ba905ae3994f821b160c989bac4260
permissions -rw-r--r--
Bug 662977 - File upload control needs a change event on drop. r=bz

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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#ifndef nsPrintData_h___
#define nsPrintData_h___

// Interfaces
#include "nsIDOMWindow.h"
#include "nsDeviceContext.h"
#include "nsIPrintProgressParams.h"
#include "nsIPrintOptions.h"
#include "nsTArray.h"
#include "nsCOMArray.h"
#include "nsAutoPtr.h"

// Classes
class nsPrintObject;
class nsPrintPreviewListener;
class nsIWebProgressListener;

//------------------------------------------------------------------------
// 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();
  void DoOnProgressChange(PRInt32      aProgess,
                          PRInt32      aMaxProgress,
                          PRBool       aDoStartStop,
                          PRInt32      aFlag);


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

  nsPrintObject *                mPrintObject;
  nsPrintObject *                mSelectedPO;

  nsCOMArray<nsIWebProgressListener> mPrintProgressListeners;
  nsCOMPtr<nsIPrintProgressParams> mPrintProgressParams;

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

  nsTArray<nsPrintObject*>    mPrintDocList;
  PRPackedBool                mIsIFrameSelected;
  PRPackedBool                mIsParentAFrameSet;
  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                     mNumPrintablePages;
  PRInt32                     mNumPagesPrinted;
  float                       mShrinkRatio;
  float                       mOrigDCScale;

  nsCOMPtr<nsIPrintSettings>  mPrintSettings;
  nsPrintPreviewListener*     mPPEventListeners;

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

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

};

#endif /* nsPrintData_h___ */