widget/WindowSurfaceX11SHM.h
author Doug Thayer <dothayer@mozilla.com>
Fri, 01 Mar 2019 18:29:09 +0000
changeset 520116 8b3fe0426ffc1b3a2ad044ef6cdde6c4f736f8e2
parent 511623 5f4630838d46dd81dadb13220a4af0da9e23a619
permissions -rw-r--r--
Bug 1442694 - Fix failures due to removing selected tab r=Gijs This adds test which reproduce the failure as well as the fix. Essentially, if we hit the edited case in SessionStore with `tab` equal to `tabbrowser.tabs[t]`, we remove the tab and then try to pin it, which obviously blows up. Note: the additional method in SessionStore.jsm was largely to get around complexity requirements inside restoreWindow. Cleaner solutions welcome. Differential Revision: https://phabricator.services.mozilla.com/D21383

/* -*- Mode: C++; tab-width: 4; 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 _MOZILLA_WIDGET_WINDOW_SURFACE_X11_SHM_H
#define _MOZILLA_WIDGET_WINDOW_SURFACE_X11_SHM_H

#ifdef MOZ_X11

#  include "mozilla/widget/WindowSurface.h"
#  include "nsShmImage.h"

namespace mozilla {
namespace widget {

class WindowSurfaceX11SHM : public WindowSurface {
 public:
  WindowSurfaceX11SHM(Display* aDisplay, Drawable aWindow, Visual* aVisual,
                      unsigned int aDepth);

  already_AddRefed<gfx::DrawTarget> Lock(
      const LayoutDeviceIntRegion& aRegion) override;
  void Commit(const LayoutDeviceIntRegion& aInvalidRegion) override;

 private:
  RefPtr<nsShmImage> mFrontImage;
  RefPtr<nsShmImage> mBackImage;
};

}  // namespace widget
}  // namespace mozilla

#endif  // MOZ_X11
#endif  // _MOZILLA_WIDGET_WINDOW_SURFACE_X11_SHM_H