widget/nsDeviceContextSpecProxy.h
author Chris H-C <chutten@mozilla.com>
Mon, 04 Jul 2016 11:16:05 -0400
changeset 312997 df28918fe2361f0b54ca9ce4773a29c4c0675d06
parent 309019 2605dceca7b26e11f3a2c546cf5aaea7d0fb9385
permissions -rw-r--r--
bug 1218576 - Support remote accumulation via JS histograms. r=gfritzsche The JS histograms, too, need to dispatch their accumulations from child to parent. JSHistograms_Add now only supports histograms that are in gHistogramsMap or that were created in the parent process. After bug 1288745, maybe we'll be able to change this to be less convoluted. MozReview-Commit-ID: 3qTH89YKbGP

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 nsDeviceContextSpecProxy_h
#define nsDeviceContextSpecProxy_h

#include "nsIDeviceContextSpec.h"
#include "nsCOMPtr.h"

class nsIPrintSession;

namespace mozilla {
namespace gfx {
class DrawEventRecorderMemory;
}

namespace layout {
class RemotePrintJobChild;
}
}

class nsDeviceContextSpecProxy final : public nsIDeviceContextSpec
{
public:
  NS_DECL_ISUPPORTS

  NS_IMETHOD Init(nsIWidget* aWidget, nsIPrintSettings* aPrintSettings,
                 bool aIsPrintPreview) final;

  virtual already_AddRefed<PrintTarget> MakePrintTarget() final;

  NS_IMETHOD GetDrawEventRecorder(mozilla::gfx::DrawEventRecorder** aDrawEventRecorder) final;

  float GetDPI() final;

  float GetPrintingScale() final;

  NS_IMETHOD BeginDocument(const nsAString& aTitle,
                           const nsAString& aPrintToFileName,
                           int32_t aStartPage, int32_t aEndPage) final;

  NS_IMETHOD EndDocument() final;

  NS_IMETHOD AbortDocument() final;

  NS_IMETHOD BeginPage() final;

  NS_IMETHOD EndPage() final;

private:
  ~nsDeviceContextSpecProxy() {}

  nsCOMPtr<nsIPrintSettings> mPrintSettings;
  nsCOMPtr<nsIPrintSession> mPrintSession;
  nsCOMPtr<nsIDeviceContextSpec> mRealDeviceContextSpec;
  RefPtr<mozilla::layout::RemotePrintJobChild> mRemotePrintJob;
  RefPtr<mozilla::gfx::DrawEventRecorderMemory> mRecorder;
};

#endif // nsDeviceContextSpecProxy_h