Move LanguageComboboxModel to chrome/browser

BUG=13524
TEST=none

Review URL: http://codereview.chromium.org/172083

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@23683 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 74 insertions, 0 deletions

diff --git a/chrome/browser/language_combobox_model.h b/chrome/browser/language_combobox_model.h
new file mode 100644
index 0000000..297d32a
--- /dev/null
+++ b/chrome/browser/language_combobox_model.h
@@ -0,0 +1,74 @@
+// 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_BROWSER_LANGUAGE_COMBOBOX_MODEL_H_
+#define CHROME_BROWSER_LANGUAGE_COMBOBOX_MODEL_H_
+
+#include <map>
+#include <string>
+#include <vector>
+
+#include "app/combobox_model.h"
+#include "chrome/browser/profile.h"
+
+///////////////////////////////////////////////////////////////////////////////
+// LanguageComboboxModel
+//  The model that fills the dropdown of valid UI languages.
+class LanguageComboboxModel : public ComboboxModel {
+ public:
+  struct LocaleData {
+    LocaleData() { }
+    LocaleData(const std::wstring& name, const std::string& code)
+        : native_name(name), locale_code(code) { }
+
+    std::wstring native_name;
+    std::string locale_code;  // E.g., en-us.
+  };
+  typedef std::map<std::wstring, LocaleData> LocaleDataMap;
+
+  LanguageComboboxModel();
+
+  // Temporary compatibility constructor.
+  LanguageComboboxModel(Profile* profile,
+                        const std::vector<std::string>& locale_codes);
+
+  virtual ~LanguageComboboxModel() {}
+
+  void InitNativeNames(const std::vector<std::string>& locale_codes);
+
+  // Overridden from ComboboxModel:
+  virtual int GetItemCount();
+
+  virtual std::wstring GetItemAt(int index);
+
+  // Return the locale for the given index.  E.g., may return pt-BR.
+  std::string GetLocaleFromIndex(int index);
+
+  // Returns the index for the given locale.  Returns -1 if the locale is not
+  // in the combobox model.
+  int GetIndexFromLocale(const std::string& locale);
+
+  // Returns the index of the language currently specified in the user's
+  // preference file.  Note that it's possible for language A to be picked
+  // while chrome is currently in language B if the user specified language B
+  // via --lang.  Since --lang is not a persistent setting, it seems that it
+  // shouldn't be reflected in this combo box.  We return -1 if the value in
+  // the pref doesn't map to a know language (possible if the user edited the
+  // prefs file manually).
+  int GetSelectedLanguageIndex(const std::wstring& prefs);
+
+ private:
+  // The names of all the locales in the current application locale.
+  std::vector<std::wstring> locale_names_;
+
+  // A map of some extra data (LocaleData) keyed off the name of the locale.
+  LocaleDataMap native_names_;
+
+  // Profile.
+  Profile* profile_;
+
+  DISALLOW_COPY_AND_ASSIGN(LanguageComboboxModel);
+};
+
+#endif  // #ifndef CHROME_BROWSER_LANGUAGE_COMBOBOX_MODEL_H_