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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_DEVTOOLS_DEVTOOLS_EYE_DROPPER_H_
#define CHROME_BROWSER_DEVTOOLS_DEVTOOLS_EYE_DROPPER_H_
#include <memory>
#include "base/callback.h"
#include "base/macros.h"
#include "components/viz/host/client_frame_sink_video_capturer.h"
#include "content/public/browser/render_widget_host.h"
#include "content/public/browser/web_contents_observer.h"
#include "media/renderers/paint_canvas_video_renderer.h"
#include "mojo/public/cpp/bindings/binding.h"
#include "third_party/skia/include/core/SkBitmap.h"
namespace blink {
class WebMouseEvent;
}
class DevToolsEyeDropper : public content::WebContentsObserver,
public viz::mojom::FrameSinkVideoConsumer {
public:
typedef base::Callback<void(int, int, int, int)> EyeDropperCallback;
DevToolsEyeDropper(content::WebContents* web_contents,
EyeDropperCallback callback);
~DevToolsEyeDropper() override;
private:
void AttachToHost(content::RenderWidgetHost* host);
void DetachFromHost();
// content::WebContentsObserver.
void DidReceiveCompositorFrame() override;
void RenderViewCreated(content::RenderViewHost* host) override;
void RenderViewDeleted(content::RenderViewHost* host) override;
void RenderViewHostChanged(content::RenderViewHost* old_host,
content::RenderViewHost* new_host) override;
void UpdateFrame();
void ResetFrame();
void FrameUpdated(const SkBitmap&);
bool HandleMouseEvent(const blink::WebMouseEvent& event);
void UpdateCursor();
// viz::mojom::FrameSinkVideoConsumer implementation.
void OnFrameCaptured(
mojo::ScopedSharedBufferHandle buffer,
uint32_t buffer_size,
::media::mojom::VideoFrameInfoPtr info,
const gfx::Rect& update_rect,
const gfx::Rect& content_rect,
viz::mojom::FrameSinkVideoConsumerFrameCallbacksPtr callbacks) override;
void OnStopped() override;
// This object keeps the shared memory that backs |frame_| mapped.
mojo::ScopedSharedBufferMapping shared_memory_mapping_;
// This object prevents FrameSinkVideoCapturer from recycling the shared
// memory that backs |frame_|.
viz::mojom::FrameSinkVideoConsumerFrameCallbacksPtr shared_memory_releaser_;
EyeDropperCallback callback_;
SkBitmap frame_;
int last_cursor_x_;
int last_cursor_y_;
content::RenderWidgetHost::MouseEventCallback mouse_event_callback_;
content::RenderWidgetHost* host_;
std::unique_ptr<viz::ClientFrameSinkVideoCapturer> video_capturer_;
const bool use_video_capture_api_;
media::PaintCanvasVideoRenderer video_renderer_;
base::WeakPtrFactory<DevToolsEyeDropper> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(DevToolsEyeDropper);
};
#endif // CHROME_BROWSER_DEVTOOLS_DEVTOOLS_EYE_DROPPER_H_
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