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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 * vim: sw=2 ts=8 et :
 */
/* 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/. */

using CSSRect from "Units.h";
using CSSToScreenScale from "Units.h";
using ScreenIntSize from "Units.h";
using ScreenPoint from "Units.h";

include "mozilla/GfxMessageUtils.h";

namespace mozilla {
namespace layers {

/**
 * The PUiCompositorController protocol is used to pause and resume the
 * compositor from the UI thread. Primarily used on Android to coordinate registering and
 * releasing the surface with the compositor.
 */
sync protocol PUiCompositorController
{

parent:
  // Pause/resume the compositor. These are intended to be used on mobile, when
  // the compositor needs to pause/resume in lockstep with the application.
  sync Pause();
  sync Resume();
  sync ResumeAndResize(int32_t aWidth, int32_t aHeight);

  async InvalidateAndRender();
  async MaxToolbarHeight(int32_t aHeight);
  async Pinned(bool aPinned, int32_t aReason);
  async ToolbarAnimatorMessageFromUI(int32_t aMessage);
  async DefaultClearColor(uint32_t aColor);
  async RequestScreenPixels();
  async EnableLayerUpdateNotifications(bool aEnable);
  async ToolbarPixelsToCompositor(Shmem aMem, ScreenIntSize aSize);
child:
  async ToolbarAnimatorMessageFromCompositor(int32_t aMessage);
  async RootFrameMetrics(ScreenPoint aScrollOffset, CSSToScreenScale aZoom);
  async ScreenPixels(Shmem aMem, ScreenIntSize aSize);
};

} // layers
} // mozilla