Consolidate/cleanup event cracking code; single out GdkEvents.

ui/aura/event.cc

 // 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.
 
 #include "ui/aura/event.h"
 
 #include "ui/aura/window.h"
 
 namespace aura {
 
 Event::Event(ui::EventType type, int flags)
     : type_(type),
       time_stamp_(base::Time::NowFromSystemTime()),
       flags_(flags) {
   Init();
 }
 
-Event::Event(NativeEvent native_event, ui::EventType type, int flags)
+Event::Event(const ui::NativeEvent& native_event, ui::EventType type, int flags)
     : type_(type),
       time_stamp_(base::Time::NowFromSystemTime()),
       flags_(flags) {
   InitWithNativeEvent(native_event);
 }
 
 Event::Event(const Event& copy)
     : native_event_(copy.native_event_),
       type_(copy.type_),
       time_stamp_(copy.time_stamp_),
       flags_(copy.flags_) {
 }
 
+void Event::Init() {
+  memset(&native_event_, 0, sizeof(native_event_));
+}
+
+void Event::InitWithNativeEvent(const ui::NativeEvent& native_event) {
+  native_event_ = native_event;
+}
+
+LocatedEvent::LocatedEvent(const ui::NativeEvent& native_event)
+    : Event(native_event,
+            ui::EventTypeFromNative(native_event),
+            ui::EventFlagsFromNative(native_event)),
+      location_(ui::EventLocationFromNative(native_event)) {
+}
+
 LocatedEvent::LocatedEvent(const LocatedEvent& model,
                            Window* source,
                            Window* target)
     : Event(model),
       location_(model.location_) {
   if (target && target != source)
     Window::ConvertPointToWindow(source, target, &location_);
 }
 
 LocatedEvent::LocatedEvent(ui::EventType type,
                            const gfx::Point& location,
                            int flags)
     : Event(type, flags),
       location_(location) {
 }
 
+MouseEvent::MouseEvent(const ui::NativeEvent& native_event)
+    : LocatedEvent(native_event) {
+}
+
 MouseEvent::MouseEvent(const MouseEvent& model, Window* source, Window* target)
     : LocatedEvent(model, source, target) {
 }
 
 MouseEvent::MouseEvent(const MouseEvent& model,
                        Window* source,
                        Window* target,
                        ui::EventType type)
     : LocatedEvent(model, source, target) {
   set_type(type);
 }
 
 MouseEvent::MouseEvent(ui::EventType type,
                        const gfx::Point& location,
                        int flags)
     : LocatedEvent(type, location, flags) {
 }
 
+KeyEvent::KeyEvent(const ui::NativeEvent& native_event)
+    : Event(native_event,
+            ui::EventTypeFromNative(native_event),
+            ui::EventFlagsFromNative(native_event)),
+      key_code_(ui::KeyboardCodeFromNative(native_event)) {
+}
+
 KeyEvent::KeyEvent(ui::EventType type,
                    ui::KeyboardCode key_code,
                    int flags)
     : Event(type, flags),
       key_code_(key_code) {
 }
 
 }  // namespace aura