OLD | NEW |
---|---|
(Empty) | |
1 // Copyright (c) 2011 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. | |
4 | |
5 #ifndef WAYLAND_EVENT_H_ | |
Evan Martin
2011/07/22 18:21:22
UI_WAYLAND_EVENTS_WAYLAND_EVENT_H_
(here and every
| |
6 #define WAYLAND_EVENT_H_ | |
7 | |
8 #include <linux/input.h> | |
9 #include <stdint.h> | |
10 | |
11 /* | |
12 We define a WaylandEvent as a union of all types of events that Wayland will | |
13 send. | |
Evan Martin
2011/07/22 18:21:22
Is this at the protocol level? Or is it wrapping
| |
14 | |
15 The following fields are common for most event types and their use is similar: | |
16 - time: | |
17 The time of the event. This should be monotonically increasing. | |
Evan Martin
2011/07/22 18:21:22
What are the units? (Is this defined in some other
| |
18 - state: | |
19 The value of the button event as given by evdev. This is 0 if button | |
20 isn't pressed. | |
21 - modifiers: | |
22 Stores all the keyboard modifiers (Ctrl, Alt, Shift, ...) currently | |
23 active. The modifiers are values as defined by xkbcommon. | |
24 */ | |
25 | |
26 /* Types of events Wayland will send */ | |
27 typedef enum { | |
28 WAYLAND_BUTTON, | |
29 WAYLAND_KEY, | |
30 WAYLAND_MOTION, | |
31 WAYLAND_POINTER_FOCUS, | |
32 WAYLAND_KEYBOARD_FOCUS, | |
33 WAYLAND_GEOMETRY_CHANGE, | |
34 } WaylandEventType; | |
35 | |
36 /* These are the mouse events expected. The event type Wayland sends is an | |
37 evdev event. The following is the correct mapping from evdev to expected | |
38 events type. | |
39 */ | |
40 enum WaylandEventButtonType { | |
41 LEFT_BUTTON = BTN_LEFT, | |
42 MIDDLE_BUTTON = BTN_RIGHT, | |
43 RIGHT_BUTTON = BTN_MIDDLE, | |
44 SCROLL_UP = BTN_SIDE, | |
45 SCROLL_DOWN = BTN_EXTRA, | |
46 }; | |
47 | |
48 struct WaylandEventButton { | |
49 WaylandEventType type; | |
50 uint32_t time; | |
51 /* WaylandEventButtonType defines some of the values button can take */ | |
Evan Martin
2011/07/22 18:21:22
C++-style comments, please. Sorry to nag.
| |
52 uint32_t button; | |
53 uint32_t state; | |
54 uint32_t modifiers; | |
55 int32_t x; | |
56 int32_t y; | |
57 }; | |
58 | |
59 struct WaylandEventKey { | |
60 WaylandEventType type; | |
61 uint32_t time; | |
62 /* The raw key value that evdev returns. */ | |
63 uint32_t key; | |
64 /* The key symbol returned by processing the raw key using the xkbcommon | |
65 library. | |
66 */ | |
67 uint32_t sym; | |
68 uint32_t state; | |
69 uint32_t modifiers; | |
70 }; | |
71 | |
72 /* Triggered when there is a motion event. The motion event is triggered | |
73 only if there is a window under focus. | |
74 */ | |
75 struct WaylandEventMotion { | |
76 WaylandEventType type; | |
77 uint32_t time; | |
78 uint32_t modifiers; | |
79 int32_t x; | |
80 int32_t y; | |
81 }; | |
82 | |
83 /* Triggered when a window enters/exits pointer focus. The state tells us | |
84 if the window lost focus (state == 0) or gained focus (state != 0). | |
85 */ | |
86 struct WaylandEventPointerFocus { | |
87 WaylandEventType type; | |
88 uint32_t time; | |
89 uint32_t state; | |
90 int32_t x; | |
91 int32_t y; | |
92 }; | |
93 | |
94 /* Triggered when a window enters/exits keyboard focus. The state tells us | |
95 if the window lost focus (state == 0) or gained focus (state != 0). | |
96 */ | |
97 struct WaylandEventKeyboardFocus { | |
98 WaylandEventType type; | |
99 uint32_t time; | |
100 uint32_t state; | |
101 uint32_t modifiers; | |
102 }; | |
103 | |
104 /* Event triggered when a window's geometry changes. The event contains the | |
105 position and dimensions of the window. | |
106 */ | |
107 struct WaylandEventGeometryChange { | |
108 WaylandEventType type; | |
109 uint32_t time; | |
110 int32_t x; | |
111 int32_t y; | |
112 int32_t width; | |
113 int32_t height; | |
114 }; | |
115 | |
116 union _WaylandEvent { | |
117 WaylandEventType type; | |
118 WaylandEventButton button; | |
119 WaylandEventKey key; | |
120 WaylandEventMotion motion; | |
121 WaylandEventPointerFocus pointer_focus; | |
122 WaylandEventKeyboardFocus keyboard_focus; | |
123 WaylandEventGeometryChange geometry_change; | |
124 }; | |
125 | |
126 typedef _WaylandEvent WaylandEvent; | |
127 | |
128 #endif | |
OLD | NEW |