Move views::Accelerator to ui in order to use it from aura code.

views/accelerator.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/accelerator.h"
-
-#if defined(OS_WIN)
-#include <windows.h>
-#elif defined(TOOLKIT_USES_GTK)
-#include <gdk/gdk.h>
-#endif
-
-#include "base/i18n/rtl.h"
-#include "base/logging.h"
-#include "base/string_util.h"
-#include "base/utf_string_conversions.h"
-#include "grit/ui_strings.h"
-#include "ui/base/l10n/l10n_util.h"
-
-namespace views {
-
-string16 Accelerator::GetShortcutText() const {
-  int string_id = 0;
-  switch(key_code_) {
-    case ui::VKEY_TAB:
-      string_id = IDS_APP_TAB_KEY;
-      break;
-    case ui::VKEY_RETURN:
-      string_id = IDS_APP_ENTER_KEY;
-      break;
-    case ui::VKEY_ESCAPE:
-      string_id = IDS_APP_ESC_KEY;
-      break;
-    case ui::VKEY_PRIOR:
-      string_id = IDS_APP_PAGEUP_KEY;
-      break;
-    case ui::VKEY_NEXT:
-      string_id = IDS_APP_PAGEDOWN_KEY;
-      break;
-    case ui::VKEY_END:
-      string_id = IDS_APP_END_KEY;
-      break;
-    case ui::VKEY_HOME:
-      string_id = IDS_APP_HOME_KEY;
-      break;
-    case ui::VKEY_INSERT:
-      string_id = IDS_APP_INSERT_KEY;
-      break;
-    case ui::VKEY_DELETE:
-      string_id = IDS_APP_DELETE_KEY;
-      break;
-    case ui::VKEY_LEFT:
-      string_id = IDS_APP_LEFT_ARROW_KEY;
-      break;
-    case ui::VKEY_RIGHT:
-      string_id = IDS_APP_RIGHT_ARROW_KEY;
-      break;
-    case ui::VKEY_BACK:
-      string_id = IDS_APP_BACKSPACE_KEY;
-      break;
-    case ui::VKEY_F1:
-      string_id = IDS_APP_F1_KEY;
-      break;
-    case ui::VKEY_F11:
-      string_id = IDS_APP_F11_KEY;
-      break;
-    default:
-      break;
-  }
-
-  string16 shortcut;
-  if (!string_id) {
-#if defined(OS_WIN)
-    // Our fallback is to try translate the key code to a regular character
-    // unless it is one of digits (VK_0 to VK_9). Some keyboard
-    // layouts have characters other than digits assigned in
-    // an unshifted mode (e.g. French AZERY layout has 'a with grave
-    // accent' for '0'). For display in the menu (e.g. Ctrl-0 for the
-    // default zoom level), we leave VK_[0-9] alone without translation.
-    wchar_t key;
-    if (key_code_ >= '0' && key_code_ <= '9')
-      key = key_code_;
-    else
-      key = LOWORD(::MapVirtualKeyW(key_code_, MAPVK_VK_TO_CHAR));
-    shortcut += key;
-#elif defined(TOOLKIT_USES_GTK)
-    const gchar* name = NULL;
-    switch (key_code_) {
-      case ui::VKEY_OEM_2:
-        name = static_cast<const gchar*>("/");
-        break;
-      default:
-        name = gdk_keyval_name(gdk_keyval_to_lower(key_code_));
-        break;
-    }
-    if (name) {
-      if (name[0] != 0 && name[1] == 0)
-        shortcut += static_cast<string16::value_type>(g_ascii_toupper(name[0]));
-      else
-        shortcut += UTF8ToUTF16(name);
-    }
-#endif
-  } else {
-    shortcut = l10n_util::GetStringUTF16(string_id);
-  }
-
-  // Checking whether the character used for the accelerator is alphanumeric.
-  // If it is not, then we need to adjust the string later on if the locale is
-  // right-to-left. See below for more information of why such adjustment is
-  // required.
-  string16 shortcut_rtl;
-  bool adjust_shortcut_for_rtl = false;
-  if (base::i18n::IsRTL() && shortcut.length() == 1 &&
-      !IsAsciiAlpha(shortcut[0]) && !IsAsciiDigit(shortcut[0])) {
-    adjust_shortcut_for_rtl = true;
-    shortcut_rtl.assign(shortcut);
-  }
-
-  if (IsShiftDown())
-    shortcut = l10n_util::GetStringFUTF16(IDS_APP_SHIFT_MODIFIER, shortcut);
-
-  // Note that we use 'else-if' in order to avoid using Ctrl+Alt as a shortcut.
-  // See http://blogs.msdn.com/oldnewthing/archive/2004/03/29/101121.aspx for
-  // more information.
-  if (IsCtrlDown())
-    shortcut = l10n_util::GetStringFUTF16(IDS_APP_CONTROL_MODIFIER, shortcut);
-  else if (IsAltDown())
-    shortcut = l10n_util::GetStringFUTF16(IDS_APP_ALT_MODIFIER, shortcut);
-
-  // For some reason, menus in Windows ignore standard Unicode directionality
-  // marks (such as LRE, PDF, etc.). On RTL locales, we use RTL menus and
-  // therefore any text we draw for the menu items is drawn in an RTL context.
-  // Thus, the text "Ctrl++" (which we currently use for the Zoom In option)
-  // appears as "++Ctrl" in RTL because the Unicode BiDi algorithm puts
-  // punctuations on the left when the context is right-to-left. Shortcuts that
-  // do not end with a punctuation mark (such as "Ctrl+H" do not have this
-  // problem).
-  //
-  // The only way to solve this problem is to adjust the string if the locale
-  // is RTL so that it is drawn correnctly in an RTL context. Instead of
-  // returning "Ctrl++" in the above example, we return "++Ctrl". This will
-  // cause the text to appear as "Ctrl++" when Windows draws the string in an
-  // RTL context because the punctunation no longer appears at the end of the
-  // string.
-  //
-  // TODO(idana) bug# 1232732: this hack can be avoided if instead of using
-  // views::Menu we use views::MenuItemView because the latter is a View
-  // subclass and therefore it supports marking text as RTL or LTR using
-  // standard Unicode directionality marks.
-  if (adjust_shortcut_for_rtl) {
-    int key_length = static_cast<int>(shortcut_rtl.length());
-    DCHECK_GT(key_length, 0);
-    shortcut_rtl.append(ASCIIToUTF16("+"));
-
-    // Subtracting the size of the shortcut key and 1 for the '+' sign.
-    shortcut_rtl.append(shortcut, 0, shortcut.length() - key_length - 1);
-    shortcut.swap(shortcut_rtl);
-  }
-
-  return shortcut;
-}
-
-}  // namespace views