Implementing chrome.i18n.getMessage call, that loads message from the extensi...

chrome/browser/extensions/extension_message_bundle.h

Index: chrome/browser/extensions/extension_message_bundle.h
===================================================================
--- chrome/browser/extensions/extension_message_bundle.h	(revision 27238)
+++ chrome/browser/extensions/extension_message_bundle.h	(working copy)
@@ -1,110 +0,0 @@
-// 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_EXTENSIONS_EXTENSION_MESSAGE_BUNDLE_H_
-#define CHROME_BROWSER_EXTENSIONS_EXTENSION_MESSAGE_BUNDLE_H_
-
-#include <string>
-
-#include "base/hash_tables.h"
-#include "base/values.h"
-
-// Contains localized extension messages for one locale. Any messages that the
-// locale does not provide are pulled from the default locale.
-class ExtensionMessageBundle {
- public:
-  typedef base::hash_map<std::string, std::string> SubstitutionMap;
-
-  // JSON keys of interest for messages file.
-  static const wchar_t* kContentKey;
-  static const wchar_t* kMessageKey;
-  static const wchar_t* kPlaceholdersKey;
-
-  // Begin/end markers for placeholders and messages
-  static const char* kPlaceholderBegin;
-  static const char* kPlaceholderEnd;
-  static const char* kMessageBegin;
-  static const char* kMessageEnd;
-
-  // Extension name and description message names
-  static const char* kExtensionName;
-  static const char* kExtensionDescription;
-
-  // Creates ExtensionMessageBundle or returns NULL if there was an error.
-  static ExtensionMessageBundle* Create(
-      const DictionaryValue& default_locale_catalog,
-      const DictionaryValue& current_locale_catalog,
-      std::string* error);
-
-  // Get message from the catalog with given key.
-  // Returned message has all of the internal placeholders resolved to their
-  // value (content).
-  // Returns empty string if it can't find a message.
-  // We don't use simple GetMessage name, since there is a global
-  // #define GetMessage GetMessageW override in Chrome code.
-  std::string GetL10nMessage(const std::string& name) const;
-
-  // Number of messages in the catalog.
-  // Used for unittesting only.
-  size_t size() const { return dictionary_.size(); }
-
-  // Replaces all __MSG_message__ with values from the catalog.
-  // Returns false if there is a message in text that's not defined in the
-  // dictionary.
-  bool ReplaceMessages(std::string* text, std::string* error) const;
-
-  // Replaces each occurance of variable placeholder with its value.
-  // I.e. replaces __MSG_name__ with value from the catalog with the key "name".
-  // Returns false if for a valid message/placeholder name there is no matching
-  // replacement.
-  // Public for easier unittesting.
-  static bool ReplaceVariables(const SubstitutionMap& variables,
-                               const std::string& var_begin,
-                               const std::string& var_end,
-                               std::string* message,
-                               std::string* error);
-
-  // Allow only ascii 0-9, a-z, A-Z, and _ in the variable name.
-  // Returns false if the input is empty or if it has illegal characters.
-  // Public for easier unittesting.
-  template<typename str>
-  static bool IsValidName(const str& name);
-
- private:
-  // Use Create to create ExtensionMessageBundle instance.
-   ExtensionMessageBundle();
-
-  // Initializes the instance from the contents of two catalogs. If a key is not
-  // present in current_locale_catalog, the value from default_local_catalog is
-  // used instead.
-  // Returns false on error.
-  bool Init(const DictionaryValue& default_locale_catalog,
-            const DictionaryValue& current_locale_catalog,
-            std::string* error);
-
-  // Helper methods that navigate JSON tree and return simplified message.
-  // They replace all $PLACEHOLDERS$ with their value, and return just key/value
-  // of the message.
-  bool GetMessageValue(const std::wstring& wkey,
-                       const DictionaryValue& catalog,
-                       std::string* value,
-                       std::string* error) const;
-
-  // Get all placeholders for a given message from JSON subtree.
-  bool GetPlaceholders(const DictionaryValue& name_tree,
-                       const std::string& name_key,
-                       SubstitutionMap* placeholders,
-                       std::string* error) const;
-
-  // For a given message, replaces all placeholders with their actual value.
-  // Returns false if replacement failed (see ReplaceVariables).
-  bool ReplacePlaceholders(const SubstitutionMap& placeholders,
-                           std::string* message,
-                           std::string* error) const;
-
-  // Holds all messages for application locale.
-  SubstitutionMap dictionary_;
-};
-
-#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_MESSAGE_BUNDLE_H_