electron/shell/browser/osr/osr_host_display_client.h

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2.7 KiB
C++

// Copyright (c) 2019 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#ifndef ELECTRON_SHELL_BROWSER_OSR_OSR_HOST_DISPLAY_CLIENT_H_
#define ELECTRON_SHELL_BROWSER_OSR_OSR_HOST_DISPLAY_CLIENT_H_
#include <memory>
#include "base/functional/callback_forward.h"
#include "base/memory/shared_memory_mapping.h"
#include "components/viz/host/host_display_client.h"
#include "services/viz/privileged/mojom/compositing/layered_window_updater.mojom.h"
#include "shell/browser/osr/osr_paint_event.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "third_party/skia/include/core/SkCanvas.h"
#include "ui/gfx/native_widget_types.h"
class SkBitmap;
class SkCanvas;
namespace electron {
class LayeredWindowUpdater : public viz::mojom::LayeredWindowUpdater {
public:
explicit LayeredWindowUpdater(
mojo::PendingReceiver<viz::mojom::LayeredWindowUpdater> receiver,
OnPaintCallback callback);
~LayeredWindowUpdater() override;
// disable copy
LayeredWindowUpdater(const LayeredWindowUpdater&) = delete;
LayeredWindowUpdater& operator=(const LayeredWindowUpdater&) = delete;
void SetActive(bool active);
// viz::mojom::LayeredWindowUpdater implementation.
void OnAllocatedSharedMemory(const gfx::Size& pixel_size,
base::UnsafeSharedMemoryRegion region) override;
void Draw(const gfx::Rect& damage_rect, DrawCallback draw_callback) override;
private:
OnPaintCallback callback_;
mojo::Receiver<viz::mojom::LayeredWindowUpdater> receiver_;
std::unique_ptr<SkCanvas> canvas_;
bool active_ = false;
#if !defined(WIN32)
base::WritableSharedMemoryMapping shm_mapping_;
#endif
};
class OffScreenHostDisplayClient : public viz::HostDisplayClient {
public:
explicit OffScreenHostDisplayClient(gfx::AcceleratedWidget widget,
OnPaintCallback callback);
~OffScreenHostDisplayClient() override;
// disable copy
OffScreenHostDisplayClient(const OffScreenHostDisplayClient&) = delete;
OffScreenHostDisplayClient& operator=(const OffScreenHostDisplayClient&) =
delete;
void SetActive(bool active);
private:
// viz::HostDisplayClient
#if BUILDFLAG(IS_MAC)
void OnDisplayReceivedCALayerParams(
const gfx::CALayerParams& ca_layer_params) override;
#endif
void CreateLayeredWindowUpdater(
mojo::PendingReceiver<viz::mojom::LayeredWindowUpdater> receiver)
override;
#if BUILDFLAG(IS_LINUX) && !BUILDFLAG(IS_CHROMEOS)
void DidCompleteSwapWithNewSize(const gfx::Size& size) override;
#endif
std::unique_ptr<LayeredWindowUpdater> layered_window_updater_;
OnPaintCallback callback_;
bool active_ = false;
};
} // namespace electron
#endif // ELECTRON_SHELL_BROWSER_OSR_OSR_HOST_DISPLAY_CLIENT_H_