Consolidate/cleanup event cracking code; single out GdkEvents.

ui/base/win/event_util.h

+// 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 UI_BASE_WIN_EVENT_UTIL_H_

[Ben Goodger (Google), 2011/09/19 23:49:20]

This looks very similar to the Gtk/X stuff.

How about this...

move these decls to ui/base/events.h

Move the contents of the .cc to events_win.cc
We can then create events_gtk/events_x.cc as well.

+#define UI_BASE_WIN_EVENT_UTIL_H_
+#pragma once
+
+#include <windows.h>
+
+#include "ui/base/events.h"
+#include "ui/base/ui_export.h"
+
+// Windows-specific Event utilities.
+// Add functionality here rather than adding #ifdefs to event.h
+
+namespace gfx {
+class Point;
+}
+
+namespace ui {
+
+// Get the ui::EventType from a native Windows message.
+UI_EXPORT EventType EventTypeFromNative(const MSG& native_event);
+
+// Get the ui::EventFlags from a native Windows message.
+UI_EXPORT int EventFlagsFromNative(const MSG& native_event);
+
+// Get the native event's location; localizes non-client mouse event locations.
+UI_EXPORT gfx::Point EventLocationFromNative(const MSG& native_event);
+
+// Returns true if the affected key is a Windows extended key. See documentation
+// for WM_KEYDOWN for explanation.
+UI_EXPORT bool IsExtendedKey(const MSG& native_event);
+
+// Returns true if the message is a mouse event.
+UI_EXPORT bool IsMouseEvent(const MSG& native_event);
+
+// Get the mouse wheel offset.
+UI_EXPORT int GetMouseWheelOffset(const MSG& native_event);
+
+}  // namespace ui
+
+#endif  // UI_BASE_WIN_EVENT_UTIL_H_