wayland: define base:NativeEvent for Wayland

ui/base/wayland/events_wayland.cc

Index: ui/base/wayland/events_wayland.cc
diff --git a/ui/base/wayland/events_wayland.cc b/ui/base/wayland/events_wayland.cc
index df6ffacc048a0972f40f54cf10ff46ca0fcd8d5c..1f844602c240936a2043a0a6a3d4deb9806bfc7f 100644
--- a/ui/base/wayland/events_wayland.cc
+++ b/ui/base/wayland/events_wayland.cc
@@ -2,15 +2,34 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "ui/base/events.h"
 
+#include <linux/input.h>
 #include <X11/extensions/XInput2.h>
 
+#include "base/event_types.h"
 #include "base/logging.h"
+#include "ui/base/events.h"

[oshima, 2011/11/10 16:13:38]

move this to top

[Mandeep Singh Baines, 2011/11/11 19:26:52]

Done.

So why does it need to be at the top?

[oshima, 2011/11/11 20:36:53]

Because the file defines the API this file implements.
See ui/base/x/events_x.cc and ui/base/win/events_win.h
(events_win.h includes windowsx.h due to some dependency issue )

 #include "ui/base/keycodes/keyboard_code_conversion_x.h"
-#include "ui/wayland/events/wayland_event.h"
 #include "ui/gfx/point.h"
 
+using namespace base::wayland;
+
+
+namespace ui {
+
+// 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,
+};
+
+} // namespace ui
+
 namespace {
 
 // Scroll amount for each wheelscroll event. 53 is also the value used for GTK+.
@@ -126,7 +145,7 @@ bool IsMouseEvent(const base::NativeEvent& native_event) {
 }
 
 int GetMouseWheelOffset(const base::NativeEvent& native_event) {
-  return native_event->button.button == ui::SCROLL_UP ?
+  return native_event->button.button == SCROLL_UP ?
       kWheelScrollAmount : -kWheelScrollAmount;
 }