ui/base: Clean up our AcceleratorGtk class.

ui/base/accelerators/accelerator_gtk.cc

+// Copyright (c) 2012 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/base/accelerators/accelerator_gtk.h"
+
+#include "ui/base/keycodes/keyboard_code_conversion_gtk.h"
+#include "ui/base/keycodes/keyboard_codes_posix.h"
+
+namespace ui {
+
+AcceleratorGtk::AcceleratorGtk() : gdk_key_code_(0) {
+}
+
+AcceleratorGtk::AcceleratorGtk(guint key_code, GdkModifierType modifier_type)
+    : Accelerator(WindowsKeyCodeForGdkKeyCode(key_code), modifier_type),
+      gdk_key_code_(key_code) {
+}
+
+AcceleratorGtk::AcceleratorGtk(KeyboardCode key_code,
+                               bool shift_pressed,
+                               bool ctrl_pressed,
+                               bool alt_pressed)
+    : Accelerator(key_code, 0),
+      gdk_key_code_(0) {
+  if (shift_pressed)
+    modifiers_ |= GDK_SHIFT_MASK;
+  if (ctrl_pressed)
+    modifiers_ |= GDK_CONTROL_MASK;
+  if (alt_pressed)
+    modifiers_ |= GDK_MOD1_MASK;
+}
+
+AcceleratorGtk::~AcceleratorGtk() {
+}
+
+guint AcceleratorGtk::GetGdkKeyCode() const {
+  if (gdk_key_code_ > 0)
+    return gdk_key_code_;
+
+  // The second parameter is false because accelerator keys are expressed in
+  // terms of the non-shift-modified key.
+  return GdkKeyCodeForWindowsKeyCode(key_code_, false);
+}
+
+}  // namespace ui