Consolidate/cleanup event cracking code; single out GdkEvents.

views/events/event_gtk.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 "views/events/event.h"
 
 #include <gdk/gdk.h>
 
 #include "base/logging.h"
-#include "ui/base/keycodes/keyboard_code_conversion_gtk.h"
 
 namespace views {
 
-namespace {
-
-ui::EventType EventTypeFromNative(NativeEvent native_event) {
-  // Add new event types as necessary.
-  switch (native_event->type) {
-    case GDK_2BUTTON_PRESS:
-    case GDK_3BUTTON_PRESS:
-    case GDK_BUTTON_PRESS:
-      return ui::ET_MOUSE_PRESSED;
-    case GDK_BUTTON_RELEASE:
-      return ui::ET_MOUSE_RELEASED;
-    case GDK_DRAG_MOTION:
-      return ui::ET_MOUSE_DRAGGED;
-    case GDK_ENTER_NOTIFY:
-      return ui::ET_MOUSE_ENTERED;
-    case GDK_KEY_PRESS:
-      return ui::ET_KEY_PRESSED;
-    case GDK_KEY_RELEASE:
-      return ui::ET_KEY_RELEASED;
-    case GDK_LEAVE_NOTIFY:
-      return ui::ET_MOUSE_EXITED;
-    case GDK_MOTION_NOTIFY:
-      if (native_event->motion.state & GDK_BUTTON1_MASK ||
-          native_event->motion.state & GDK_BUTTON2_MASK ||
-          native_event->motion.state & GDK_BUTTON3_MASK ||
-          native_event->motion.state & GDK_BUTTON4_MASK ||
-          native_event->motion.state & GDK_BUTTON5_MASK) {
-        return ui::ET_MOUSE_DRAGGED;
-      }
-      return ui::ET_MOUSE_MOVED;
-    case GDK_SCROLL:
-      return ui::ET_MOUSEWHEEL;
-    default:
-      NOTREACHED();
-      break;
-  }
-  return ui::ET_UNKNOWN;
-}
-
-GdkEventKey* GetGdkEventKeyFromNative(NativeEvent native_event) {
-  DCHECK(native_event->type == GDK_KEY_PRESS ||
-         native_event->type == GDK_KEY_RELEASE);
-  return &native_event->key;
-}
-
-gfx::Point GetMouseEventLocation(NativeEvent native_event) {
-  double x = 0, y = 0;
-  if (gdk_event_get_coords(native_event, &x, &y))
-    return gfx::Point(static_cast<int>(x), static_cast<int>(y));
-  return gfx::Point();
-}
-
-int GetMouseWheelOffset(NativeEvent native_event) {
-  DCHECK(native_event->type == GDK_SCROLL);
-  int offset = (native_event->scroll.direction == GDK_SCROLL_UP ||
-                native_event->scroll.direction == GDK_SCROLL_LEFT) ? 1 : -1;
-  return MouseWheelEvent::kWheelDelta * offset;
-}
-
-unsigned int GetGdkStateFromNative(NativeEvent native_event) {
-  switch (native_event->type) {
-    case GDK_KEY_PRESS:
-    case GDK_KEY_RELEASE:
-      return native_event->key.state;
-    case GDK_BUTTON_PRESS:
-    case GDK_2BUTTON_PRESS:
-    case GDK_3BUTTON_PRESS:
-    case GDK_BUTTON_RELEASE:
-      return native_event->button.state;
-    case GDK_SCROLL:
-      return native_event->scroll.state;
-    case GDK_MOTION_NOTIFY:
-      return native_event->motion.state;
-    case GDK_ENTER_NOTIFY:
-    case GDK_LEAVE_NOTIFY:
-      return native_event->crossing.state;
-    default:
-      NOTREACHED();
-      break;
-  }
-  return 0;
-}
-
-int GetFlagsFromGdkState(unsigned int state) {
-  int flags = 0;
-  flags |= (state & GDK_LOCK_MASK) ? ui::EF_CAPS_LOCK_DOWN : 0;
-  flags |= (state & GDK_CONTROL_MASK) ? ui::EF_CONTROL_DOWN : 0;
-  flags |= (state & GDK_SHIFT_MASK) ? ui::EF_SHIFT_DOWN : 0;
-  flags |= (state & GDK_MOD1_MASK) ? ui::EF_ALT_DOWN : 0;
-  flags |= (state & GDK_BUTTON1_MASK) ? ui::EF_LEFT_BUTTON_DOWN : 0;
-  flags |= (state & GDK_BUTTON2_MASK) ? ui::EF_MIDDLE_BUTTON_DOWN : 0;
-  flags |= (state & GDK_BUTTON3_MASK) ? ui::EF_RIGHT_BUTTON_DOWN : 0;
-  return flags;
-}
-
-}  // namespace
-
-////////////////////////////////////////////////////////////////////////////////
-// Event, public:
-
-// static
-int Event::GetFlagsFromGdkEvent(NativeEvent native_event) {
-  int flags = GetFlagsFromGdkState(GetGdkStateFromNative(native_event));
-  if (native_event->type == GDK_2BUTTON_PRESS)
-    flags |= ui::EF_IS_DOUBLE_CLICK;
-  if (native_event->type == GDK_BUTTON_PRESS ||
-      native_event->type == GDK_2BUTTON_PRESS ||
-      native_event->type == GDK_3BUTTON_PRESS ||
-      native_event->type == GDK_BUTTON_RELEASE) {
-    switch (native_event->button.button) {
-      case 1:
-        return flags | ui::EF_LEFT_BUTTON_DOWN;
-      case 2:
-        return flags | ui::EF_MIDDLE_BUTTON_DOWN;
-      case 3:
-        return flags | ui::EF_RIGHT_BUTTON_DOWN;
-    }
-  }
-  return flags;
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 // Event, private:
 
 void Event::Init() {
   native_event_ = NULL;
   native_event_2_ = NULL;
 }
 
-void Event::InitWithNativeEvent(NativeEvent native_event) {
-  native_event_ = native_event;
-  // TODO(beng): remove once we rid views of Gtk/Gdk.
-  native_event_2_ = NULL;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// LocatedEvent, protected:
-
-LocatedEvent::LocatedEvent(NativeEvent native_event)
-    : Event(native_event, EventTypeFromNative(native_event),
-            GetFlagsFromGdkEvent(native_event)),
-      location_(GetMouseEventLocation(native_event)) {
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// MouseEvent, public:
-
-MouseEvent::MouseEvent(NativeEvent native_event)
-    : LocatedEvent(native_event) {
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// KeyEvent, public:
-
-KeyEvent::KeyEvent(NativeEvent native_event)
-    : Event(native_event, EventTypeFromNative(native_event),
-            GetFlagsFromGdkEvent(native_event)),
-      key_code_(ui::KeyboardCodeFromGdkEventKey(
-                GetGdkEventKeyFromNative(native_event))),
-      character_(0),
-      unmodified_character_(0) {
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 // MouseWheelEvent, public:
 
-MouseWheelEvent::MouseWheelEvent(NativeEvent native_event)
+MouseWheelEvent::MouseWheelEvent(const NativeEvent& native_event)
     : MouseEvent(native_event),
-      offset_(GetMouseWheelOffset(native_event)) {
+      offset_(kWheelDelta * ui::GetMouseWheelOffset(native_event)) {
 }
 
 }  // namespace views