Index: ui/wayland/events/wayland_event.h |
diff --git a/ui/wayland/events/wayland_event.h b/ui/wayland/events/wayland_event.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..84990591ecc359fc41c8b9799ae000d07193b36c |
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+++ b/ui/wayland/events/wayland_event.h |
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+// Copyright (c) 2011 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 WAYLAND_EVENT_H_ |
Evan Martin
2011/07/22 18:21:22
UI_WAYLAND_EVENTS_WAYLAND_EVENT_H_
(here and every
|
+#define WAYLAND_EVENT_H_ |
+ |
+#include <linux/input.h> |
+#include <stdint.h> |
+ |
+/* |
+We define a WaylandEvent as a union of all types of events that Wayland will |
+send. |
Evan Martin
2011/07/22 18:21:22
Is this at the protocol level? Or is it wrapping
|
+ |
+The following fields are common for most event types and their use is similar: |
+ - time: |
+ 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
|
+ - state: |
+ The value of the button event as given by evdev. This is 0 if button |
+ isn't pressed. |
+ - modifiers: |
+ Stores all the keyboard modifiers (Ctrl, Alt, Shift, ...) currently |
+ active. The modifiers are values as defined by xkbcommon. |
+*/ |
+ |
+/* Types of events Wayland will send */ |
+typedef enum { |
+ WAYLAND_BUTTON, |
+ WAYLAND_KEY, |
+ WAYLAND_MOTION, |
+ WAYLAND_POINTER_FOCUS, |
+ WAYLAND_KEYBOARD_FOCUS, |
+ WAYLAND_GEOMETRY_CHANGE, |
+} WaylandEventType; |
+ |
+/* These are the mouse events expected. The event type Wayland sends is an |
+evdev event. The following is the correct mapping from evdev to expected |
+events type. |
+*/ |
+enum WaylandEventButtonType { |
+ LEFT_BUTTON = BTN_LEFT, |
+ MIDDLE_BUTTON = BTN_RIGHT, |
+ RIGHT_BUTTON = BTN_MIDDLE, |
+ SCROLL_UP = BTN_SIDE, |
+ SCROLL_DOWN = BTN_EXTRA, |
+}; |
+ |
+struct WaylandEventButton { |
+ WaylandEventType type; |
+ uint32_t time; |
+ /* WaylandEventButtonType defines some of the values button can take */ |
Evan Martin
2011/07/22 18:21:22
C++-style comments, please. Sorry to nag.
|
+ uint32_t button; |
+ uint32_t state; |
+ uint32_t modifiers; |
+ int32_t x; |
+ int32_t y; |
+}; |
+ |
+struct WaylandEventKey { |
+ WaylandEventType type; |
+ uint32_t time; |
+ /* The raw key value that evdev returns. */ |
+ uint32_t key; |
+ /* The key symbol returned by processing the raw key using the xkbcommon |
+ library. |
+ */ |
+ uint32_t sym; |
+ uint32_t state; |
+ uint32_t modifiers; |
+}; |
+ |
+/* Triggered when there is a motion event. The motion event is triggered |
+only if there is a window under focus. |
+*/ |
+struct WaylandEventMotion { |
+ WaylandEventType type; |
+ uint32_t time; |
+ uint32_t modifiers; |
+ int32_t x; |
+ int32_t y; |
+}; |
+ |
+/* Triggered when a window enters/exits pointer focus. The state tells us |
+if the window lost focus (state == 0) or gained focus (state != 0). |
+*/ |
+struct WaylandEventPointerFocus { |
+ WaylandEventType type; |
+ uint32_t time; |
+ uint32_t state; |
+ int32_t x; |
+ int32_t y; |
+}; |
+ |
+/* Triggered when a window enters/exits keyboard focus. The state tells us |
+if the window lost focus (state == 0) or gained focus (state != 0). |
+*/ |
+struct WaylandEventKeyboardFocus { |
+ WaylandEventType type; |
+ uint32_t time; |
+ uint32_t state; |
+ uint32_t modifiers; |
+}; |
+ |
+/* Event triggered when a window's geometry changes. The event contains the |
+position and dimensions of the window. |
+*/ |
+struct WaylandEventGeometryChange { |
+ WaylandEventType type; |
+ uint32_t time; |
+ int32_t x; |
+ int32_t y; |
+ int32_t width; |
+ int32_t height; |
+}; |
+ |
+union _WaylandEvent { |
+ WaylandEventType type; |
+ WaylandEventButton button; |
+ WaylandEventKey key; |
+ WaylandEventMotion motion; |
+ WaylandEventPointerFocus pointer_focus; |
+ WaylandEventKeyboardFocus keyboard_focus; |
+ WaylandEventGeometryChange geometry_change; |
+}; |
+ |
+typedef _WaylandEvent WaylandEvent; |
+ |
+#endif |