chromium/content/browser/renderer_host/browser_compositor_ios.h

// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_BROWSER_RENDERER_HOST_BROWSER_COMPOSITOR_IOS_H_
#define CONTENT_BROWSER_RENDERER_HOST_BROWSER_COMPOSITOR_IOS_H_

#include <memory>

#include "base/memory/raw_ptr.h"
#include "base/time/time.h"
#include "components/viz/common/frame_sinks/begin_frame_source.h"
#include "components/viz/common/surfaces/local_surface_id.h"
#include "components/viz/common/surfaces/parent_local_surface_id_allocator.h"
#include "components/viz/common/surfaces/scoped_surface_id_allocator.h"
#include "content/browser/renderer_host/delegated_frame_host.h"
#include "content/common/content_export.h"
#include "ui/compositor/compositor.h"
#include "ui/compositor/compositor_observer.h"
#include "ui/compositor/layer_observer.h"
#include "ui/display/screen_info.h"

namespace content {

class BrowserCompositorIOSClient { … };

// This class owns a DelegatedFrameHost, and will dynamically attach and
// detach it from a ui::Compositor as needed. The ui::Compositor will be
// detached from the DelegatedFrameHost when the following conditions are
// all met:
// - The RenderWidgetHostImpl providing frames to the DelegatedFrameHost
//   is visible.
// - The RenderWidgetHostViewIOS that is used to display these frames is
//   attached to the UIView hierarchy of an UIWindow.
class CONTENT_EXPORT BrowserCompositorIOS : public DelegatedFrameHostClient,
                                            public ui::LayerObserver { … };

}  // namespace content

#endif  // CONTENT_BROWSER_RENDERER_HOST_BROWSER_COMPOSITOR_IOS_H_