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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_PAINT_PREVIEW_BROWSER_PAINT_PREVIEW_COMPOSITOR_CLIENT_IMPL_H_
#define COMPONENTS_PAINT_PREVIEW_BROWSER_PAINT_PREVIEW_COMPOSITOR_CLIENT_IMPL_H_
#include <optional>
#include "base/functional/callback_forward.h"
#include "base/task/sequenced_task_runner.h"
#include "base/unguessable_token.h"
#include "components/paint_preview/browser/paint_preview_compositor_service_impl.h"
#include "components/paint_preview/public/paint_preview_compositor_client.h"
#include "components/services/paint_preview_compositor/public/mojom/paint_preview_compositor.mojom.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "ui/gfx/geometry/rect.h"
#include "url/gurl.h"
namespace paint_preview {
using CompositorPtr =
std::unique_ptr<mojo::Remote<mojom::PaintPreviewCompositor>,
base::OnTaskRunnerDeleter>;
// The implementation of the PaintPreviewCompositorClient class.
// The public interface should be invoked only on the |default_task_runner_|
// which is the the runner returned by
// base::SequencedTaskRunner::GetCurrentDefault() when this is constructed.
class PaintPreviewCompositorClientImpl : public PaintPreviewCompositorClient {
public:
using OnCompositorCreatedCallback =
base::OnceCallback<void(const base::UnguessableToken&)>;
explicit PaintPreviewCompositorClientImpl(
scoped_refptr<base::SequencedTaskRunner> compositor_task_runner,
base::WeakPtr<PaintPreviewCompositorServiceImpl> service);
~PaintPreviewCompositorClientImpl() override;
// PaintPreviewCompositorClient implementation.
const std::optional<base::UnguessableToken>& Token() const override;
void SetDisconnectHandler(base::OnceClosure closure) override;
void BeginSeparatedFrameComposite(
mojom::PaintPreviewBeginCompositeRequestPtr request,
mojom::PaintPreviewCompositor::BeginSeparatedFrameCompositeCallback
callback) override;
void BitmapForSeparatedFrame(
const base::UnguessableToken& frame_guid,
const gfx::Rect& clip_rect,
float scale_factor,
mojom::PaintPreviewCompositor::BitmapForSeparatedFrameCallback callback,
bool run_callback_on_default_task_runner = true) override;
void BeginMainFrameComposite(
mojom::PaintPreviewBeginCompositeRequestPtr request,
mojom::PaintPreviewCompositor::BeginMainFrameCompositeCallback callback)
override;
void BitmapForMainFrame(
const gfx::Rect& clip_rect,
float scale_factor,
mojom::PaintPreviewCompositor::BitmapForMainFrameCallback callback,
bool run_callback_on_default_task_runner = true) override;
void SetRootFrameUrl(const GURL& url) override;
// The returned remote should only be used on `compositor_task_runner_`.
mojo::Remote<mojom::PaintPreviewCompositor>* GetCompositor() {
return compositor_.get();
}
void IsBoundAndConnected(base::OnceCallback<void(bool)> callback);
OnCompositorCreatedCallback BuildCompositorCreatedCallback(
base::OnceClosure user_closure,
OnCompositorCreatedCallback service_callback);
PaintPreviewCompositorClientImpl(const PaintPreviewCompositorClientImpl&) =
delete;
PaintPreviewCompositorClientImpl& operator=(
const PaintPreviewCompositorClientImpl&) = delete;
private:
void OnCompositorCreated(base::OnceClosure user_closure,
OnCompositorCreatedCallback service_callback,
const base::UnguessableToken& token);
void NotifyServiceOfInvalidation();
void DisconnectHandler();
scoped_refptr<base::SequencedTaskRunner> compositor_task_runner_;
scoped_refptr<base::SequencedTaskRunner> default_task_runner_;
base::WeakPtr<PaintPreviewCompositorServiceImpl> service_;
CompositorPtr compositor_;
std::optional<base::UnguessableToken> token_;
base::OnceClosure user_disconnect_closure_;
base::WeakPtrFactory<PaintPreviewCompositorClientImpl> weak_ptr_factory_{
this};
};
} // namespace paint_preview
#endif // COMPONENTS_PAINT_PREVIEW_BROWSER_PAINT_PREVIEW_COMPOSITOR_CLIENT_IMPL_H_
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