Move message flags into a separate header that can be used

chrome/common/message_box_flags.h

+// Copyright (c) 2009 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 CHROME_COMMON_MESSAGE_BOX_FLAGS_H_
+#define CHROME_COMMON_MESSAGE_BOX_FLAGS_H_
+
+#include "base/basictypes.h"
+
+// This class contains flags used to communicate the type of message box
+// to show.  E.g., the renderer can request the browser to show a
+// javascript alert or a javascript confirm message.
+class MessageBox {
+ public:
+  static const int kFlagHasOKButton = 0x1;
+  static const int kFlagHasCancelButton = 0x2;
+  static const int kFlagHasPromptField = 0x4;
+  static const int kFlagHasMessage = 0x8;
+
+  // The following flag is used to indicate whether the message's alignment
+  // should be autodetected or inherited from Chrome UI. Callers should pass
+  // the correct flag based on the origin of the message. If the message is
+  // from a web page (such as the JavaScript alert message), its alignment and
+  // directionality are based on the first character with strong directionality
+  // in the message. Chrome UI strings are localized string and therefore they
+  // should have the same alignment and directionality as those of the Chrome
+  // UI. For example, in RTL locales, even though some strings might begin with
+  // an English character, they should still be right aligned and be displayed
+  // Right-To-Left.
+  //
+  // TODO(xji): If the message is from a web page, then the message
+  // directionality should be determined based on the directionality of the web
+  // page. Please refer to http://crbug.com/7166 for more information.
+  static const int kAutoDetectAlignment = 0x10;
+
+  static const int kIsConfirmMessageBox = kFlagHasMessage |
+                                          kFlagHasOKButton |
+                                          kFlagHasCancelButton;
+  static const int kIsJavascriptAlert = kFlagHasOKButton | kFlagHasMessage;
+  static const int kIsJavascriptConfirm = kIsJavascriptAlert |
+                                          kFlagHasCancelButton;
+  static const int kIsJavascriptPrompt = kIsJavascriptConfirm |
+                                         kFlagHasPromptField;
+
+ private:
+  MessageBox() {}
+  DISALLOW_COPY_AND_ASSIGN(MessageBox);
+};
+
+#endif  // CHROME_COMMON_MESSAGE_BOX_FLAGS_H_