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// Copyright (c) 2010 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.
// Protocol for event messages.
syntax = "proto2";
option optimize_for = LITE_RUNTIME;
package remoting;
// Defines a keyboard event.
// NEXT ID: 3
message KeyEvent {
// The POSIX key code.
required int32 key = 1;
required bool pressed = 2;
}
// Sets the absolute position of the mouse cursor.
// dimension of the screen area.
// NEXT ID: 3
message MouseSetPositionEvent {
required int32 x = 1;
required int32 y = 2;
// Windows sets absolute mouse pointer positions as a relative value to
// the screen size. So pass the screen size to make this calculation easier.
optional int32 width = 3;
optional int32 height = 4;
}
// Adjust the position of the mouse cursor by an offset.
// NEXT ID: 3
message MouseMoveEvent {
required int32 offset_x = 1;
required int32 offset_y = 2;
}
// Motion of the mouse wheel.
// TODO(garykac): What are units here? How many units correspond to a single
// wheel click? On Windows, one click (WHEEL_DELTA) is 120 wheel units.
// NEXT ID: 3
message MouseWheelEvent {
required int32 offset_x = 1;
required int32 offset_y = 2;
}
enum MouseButton {
MouseButtonUndefined = 0;
MouseButtonLeft = 1;
MouseButtonMiddle = 2;
MouseButtonRight = 3;
}
// Mouse button is pressed down.
// NEXT ID: 2
message MouseDownEvent {
required MouseButton button = 1;
}
// Mouse button is released.
// NEXT ID: 2
message MouseUpEvent {
required MouseButton button = 1;
}
// Defines a mouse event message on the event channel.
message MouseEvent {
// Mouse position information.
optional int32 mouse_x = 1;
optional int32 mouse_y = 2;
// Mouse wheel information.
optional int32 wheel_offset_x = 3;
optional int32 wheel_offset_y = 4;
// Mouse button information.
optional MouseButton button = 5;
optional bool button_down = 6;
}
// Defines an event message on the event channel.
message Event {
required int32 timestamp = 1; // Client timestamp for event
optional bool dummy = 2; // Is this a dummy event?
optional KeyEvent key = 3;
optional MouseEvent mouse = 4;
}
// Defines the message that is sent from client to host.
// Only one of the optional messages should be present.
message ClientEventMessage {
repeated Event events = 1;
}
// Defines the message that is sent from host to client.
// Only one of the optional messages should be present.
message HostEventMessage {
// TODO(hclam): Define the message.
}
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