widget/WindowSurfaceX11SHM.h
author Timothy Guan-tin Chien <timdream@gmail.com>
Mon, 28 Jan 2019 18:24:08 +0000
changeset 513567 c1032d34b5e0e525820446f713e4ad6288ebcb56
parent 511623 5f4630838d46dd81dadb13220a4af0da9e23a619
permissions -rw-r--r--
Bug 1518932 - Convert menulist to custom element r=paolo This custom element replaces XBL <content> usage by directly prepend the two needed child nodes when the element is connected. This is doable because - There isn't any direct access of child nodes under <menulist>. Everyone seems to access via .menupopup, which is usually the only child. - We don't need to move the children under <menulist>. If we need to and if the child is a <xbl:children> (which could happen if <menulist> is inside an XBL <content> that just get cloned to the document), the layout will get very confused and crash (see finding in bug 1514926) Differential Revision: https://phabricator.services.mozilla.com/D16149

/* -*- 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