1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 // Protocol for event messages.
9 option optimize_for = LITE_RUNTIME;
11 package remoting.protocol;
13 // Defines a keyboard event.
16 // The keyboard (Caps/Num) lock states.
18 LOCK_STATES_CAPSLOCK = 1;
19 LOCK_STATES_NUMLOCK = 2;
22 // True for key press events, and false for key release.
23 optional bool pressed = 2;
26 // The upper 16-bits are the USB Page (0x07 for key events).
27 // The lower 16-bits are the USB Usage ID (which identifies the actual key).
28 optional uint32 usb_keycode = 3;
30 // The keyboard lock states.
31 optional uint32 lock_states = 4 [default = 0];
34 // Text input event for input method different from physical keyboards,
35 // including software keyboard, gesture typing, voice input, etc.
37 // Unicode sequence for the event in UTF-8.
38 optional string text = 1;
41 // Defines a mouse event message on the event channel.
52 // Mouse position information.
56 // Mouse button event.
57 optional MouseButton button = 5;
58 optional bool button_down = 6;
60 // Mouse wheel information.
61 // These values encode the number of pixels and 'ticks' of movement that
62 // would result from the wheel event on the client system.
63 optional float wheel_delta_x = 7;
64 optional float wheel_delta_y = 8;
65 optional float wheel_ticks_x = 9;
66 optional float wheel_ticks_y = 10;
68 // Mouse movement information. Provided only when mouse lock is engaged.
69 optional int32 delta_x = 11;
70 optional int32 delta_y = 12;
73 // Defines an event that sends clipboard data between peers.
74 message ClipboardEvent {
76 // The MIME type of the data being sent.
77 optional string mime_type = 1;
79 // The data being sent.
80 optional bytes data = 2;
83 message TouchEventPoint {
84 // The ID for the touch point.
85 optional uint32 id = 1;
87 // The position of the touch point.
88 // These values on-the-wire are host coordinates.
92 // The size of the touch point, used to aid hit-testing.
93 // Scaled to match the size on host.
94 optional float radius_x = 4;
95 optional float radius_y = 5;
97 // Angle in degrees from the y-axis of the touch point.
98 optional float angle = 6;
100 // The pressure of the touch point.
101 // The value should be in [0.0, 1.0].
102 optional float pressure = 7;
106 // A START event means that this event reports all the touch points that were
107 // just added, e.g. a finger started touching the display.
108 // A MOVE event means that the touch points that have been STARTed moved,
109 // e.g. multiple fingers on the screen moved.
110 // An END event means that the touch points that have been STARTed ended.
111 // e.g. a finger went off the screen.
112 // A CANCEL event means that the touch points that have been STARTed were
113 // canceled, e.g. a finger went off the screen.
114 // Cancel event is simlar to END but slighly different. For example, Android
115 // MotionEvent's ACTION_CANCEL documentation mentions that a cancel should be
116 // treated as an ACTION_UP (END) event but might not perform the exact same
117 // actions as a normal ACTION_UP event.
118 enum TouchEventType {
119 TOUCH_POINT_START = 1;
120 TOUCH_POINT_MOVE = 2;
122 TOUCH_POINT_CANCEL = 4;
125 optional TouchEventType event_type = 1;
127 // Only the changed touch points are added to this field.
128 // Given the existing touch point APIs (e.g. Android and PPAPI)
129 // for START, END, and CANCEL events the size of this field will typically be
130 // 1, but for MOVE events it is likely to have multiple points.
131 repeated TouchEventPoint touch_points = 2;