gecko-dev/layout/printing/nsPagePrintTimer.h

76 lines
2.0 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsPagePrintTimer_h___
#define nsPagePrintTimer_h___
// Timer Includes
#include "nsITimer.h"
#include "nsIDocumentViewerPrint.h"
#include "nsPrintObject.h"
#include "mozilla/Attributes.h"
#include "nsThreadUtils.h"
class nsPrintEngine;
//---------------------------------------------------
//-- Page Timer Class
//---------------------------------------------------
class nsPagePrintTimer MOZ_FINAL : public nsRunnable,
public nsITimerCallback
{
public:
NS_DECL_ISUPPORTS
nsPagePrintTimer(nsPrintEngine* aPrintEngine,
nsIDocumentViewerPrint* aDocViewerPrint,
uint32_t aDelay)
: mPrintEngine(aPrintEngine)
, mDocViewerPrint(aDocViewerPrint)
, mDelay(aDelay)
, mFiringCount(0)
, mPrintObj(nullptr)
, mWatchDogCount(0)
, mDone(false)
{
mDocViewerPrint->IncrementDestroyRefCount();
}
~nsPagePrintTimer();
NS_DECL_NSITIMERCALLBACK
nsresult Start(nsPrintObject* aPO);
NS_IMETHOD Run() MOZ_OVERRIDE;
void Stop();
private:
nsresult StartTimer(bool aUseDelay);
nsresult StartWatchDogTimer();
void StopWatchDogTimer();
void Fail();
nsPrintEngine* mPrintEngine;
nsCOMPtr<nsIDocumentViewerPrint> mDocViewerPrint;
nsCOMPtr<nsITimer> mTimer;
nsCOMPtr<nsITimer> mWatchDogTimer;
uint32_t mDelay;
uint32_t mFiringCount;
nsPrintObject * mPrintObj;
uint32_t mWatchDogCount;
bool mDone;
static const uint32_t WATCH_DOG_INTERVAL = 1000;
static const uint32_t WATCH_DOG_MAX_COUNT = 10;
};
nsresult
NS_NewPagePrintTimer(nsPagePrintTimer **aResult);
#endif /* nsPagePrintTimer_h___ */