blob: 24dfe72dfa7b9ef59cab6d6c0ee76d13e682b06d [file] [log] [blame]
* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
#include "webrtc/modules/desktop_capture/desktop_capture_types.h"
#include "webrtc/modules/desktop_capture/desktop_geometry.h"
#include "webrtc/typedefs.h"
namespace webrtc {
class DesktopCaptureOptions;
class DesktopFrame;
class MouseCursor;
// Captures mouse shape and position.
class MouseCursorMonitor {
enum CursorState {
// Cursor on top of the window including window decorations.
// Cursor is outside of the window.
enum Mode {
// Capture only shape of the mouse cursor, but not position.
// Capture both, mouse cursor shape and position.
// Callback interface used to pass current mouse cursor position and shape.
class Callback {
// Called in response to Capture() when the cursor shape has changed. Must
// take ownership of |cursor|.
virtual void OnMouseCursor(MouseCursor* cursor) = 0;
// Called in response to Capture(). |position| indicates cursor position
// relative to the |window| specified in the constructor.
virtual void OnMouseCursorPosition(CursorState state,
const DesktopVector& position) = 0;
virtual ~Callback() {}
virtual ~MouseCursorMonitor() {}
// Creates a capturer that notifies of mouse cursor events while the cursor is
// over the specified window.
static MouseCursorMonitor* CreateForWindow(
const DesktopCaptureOptions& options,
WindowId window);
// Creates a capturer that monitors the mouse cursor shape and position across
// the entire desktop.
// TODO(sergeyu): Provide a way to select a specific screen.
static MouseCursorMonitor* CreateForScreen(
const DesktopCaptureOptions& options,
ScreenId screen);
// Initializes the monitor with the |callback|, which must remain valid until
// capturer is destroyed.
virtual void Init(Callback* callback, Mode mode) = 0;
// Captures current cursor shape and position (depending on the |mode| passed
// to Init()). Calls Callback::OnMouseCursor() if cursor shape has
// changed since the last call (or when Capture() is called for the first
// time) and then Callback::OnMouseCursorPosition() if mode is set to
virtual void Capture() = 0;
} // namespace webrtc