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// Copyright 2025 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_BEGIN_FRAME_SOURCE_IOS_H_
#define CONTENT_BROWSER_RENDERER_HOST_BEGIN_FRAME_SOURCE_IOS_H_
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/time/time.h"
#include "components/viz/common/frame_sinks/begin_frame_source.h"
#include "components/viz/common/frame_sinks/external_begin_frame_source_ios.h"
#include "mojo/public/cpp/bindings/associated_receiver_set.h"
#include "ui/compositor/compositor.h"
namespace content {
class BeginFrameSourceIOS
: public viz::BeginFrameObserver,
public ui::ExternalBeginFrameControllerClientFactory,
public viz::mojom::ExternalBeginFrameControllerClient {
public:
explicit BeginFrameSourceIOS(ui::Compositor* compositor);
~BeginFrameSourceIOS() override;
// BeginFrameObserver implementation.
void OnBeginFrame(const viz::BeginFrameArgs& args) override;
const viz::BeginFrameArgs& LastUsedBeginFrameArgs() const override;
void OnBeginFrameSourcePausedChanged(bool paused) override;
bool WantsAnimateOnlyBeginFrames() const override;
bool IsRoot() const override;
// ui::ExternalBeginFrameControllerClientFactory implementation.
mojo::PendingAssociatedRemote<viz::mojom::ExternalBeginFrameControllerClient>
CreateExternalBeginFrameControllerClient() override;
// viz::mojom::ExternalBeginFrameControllerClient implementation.
void SetNeedsBeginFrame(bool needs_begin_frames) override;
void SetPreferredInterval(base::TimeDelta interval) override;
private:
const raw_ptr<ui::Compositor> compositor_;
viz::ExternalBeginFrameSourceIOS begin_frame_source_;
viz::BeginFrameArgs last_used_begin_frame_args_;
bool observing_begin_frame_source_ = false;
mojo::AssociatedReceiverSet<viz::mojom::ExternalBeginFrameControllerClient>
receivers_;
base::WeakPtrFactory<BeginFrameSourceIOS> weak_factory_{this};
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_BEGIN_FRAME_SOURCE_IOS_H_
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