The Tor Browser: layout/printing/nsPagePrintTimer.h@8bccb770b82d

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     5 #ifndef nsPagePrintTimer_h___

     6 #define nsPagePrintTimer_h___

     8 // Timer Includes

     9 #include "nsITimer.h"

    11 #include "nsIDocumentViewerPrint.h"

    12 #include "nsPrintObject.h"

    13 #include "mozilla/Attributes.h"

    14 #include "nsThreadUtils.h"

    16 class nsPrintEngine;

    18 //---------------------------------------------------

    19 //-- Page Timer Class

    20 //---------------------------------------------------

    21 class nsPagePrintTimer MOZ_FINAL : public nsRunnable,

    22                                    public nsITimerCallback

    23 {

    24 public:

    26   NS_DECL_ISUPPORTS

    28   nsPagePrintTimer(nsPrintEngine* aPrintEngine,

    29                    nsIDocumentViewerPrint* aDocViewerPrint,

    30                    uint32_t aDelay)

    31     : mPrintEngine(aPrintEngine)

    32     , mDocViewerPrint(aDocViewerPrint)

    33     , mDelay(aDelay)

    34     , mFiringCount(0)

    35     , mPrintObj(nullptr)

    36     , mWatchDogCount(0)

    37     , mDone(false)

    38   {

    39     mDocViewerPrint->IncrementDestroyRefCount();

    40   }

    41   ~nsPagePrintTimer();

    43   NS_DECL_NSITIMERCALLBACK

    45   nsresult Start(nsPrintObject* aPO);

    47   NS_IMETHOD Run() MOZ_OVERRIDE;

    49   void Stop();

    51 private:

    52   nsresult StartTimer(bool aUseDelay);

    53   nsresult StartWatchDogTimer();

    54   void     StopWatchDogTimer();

    55   void     Fail();

    57   nsPrintEngine*             mPrintEngine;

    58   nsCOMPtr<nsIDocumentViewerPrint> mDocViewerPrint;

    59   nsCOMPtr<nsITimer>         mTimer;

    60   nsCOMPtr<nsITimer>         mWatchDogTimer;

    61   uint32_t                   mDelay;

    62   uint32_t                   mFiringCount;

    63   nsPrintObject *            mPrintObj;

    64   uint32_t                   mWatchDogCount;

    65   bool                       mDone;

    67   static const uint32_t WATCH_DOG_INTERVAL  = 1000;

    68   static const uint32_t WATCH_DOG_MAX_COUNT = 10;

    69 };

    72 nsresult

    73 NS_NewPagePrintTimer(nsPagePrintTimer **aResult);

    75 #endif /* nsPagePrintTimer_h___ */

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