chrome/browser/chromeos/input_method/component_extension_ime_manager_impl.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_CHROMEOS_INPUT_METHOD_COMPONENT_EXTENSION_IME_MANAGER_IMPL_H_
   6 #define CHROME_BROWSER_CHROMEOS_INPUT_METHOD_COMPONENT_EXTENSION_IME_MANAGER_IMPL_H_
   7
   8 #include <set>
   9 #include <vector>
  10
  11 #include "base/bind.h"
  12 #include "base/memory/weak_ptr.h"
  13 #include "base/sequenced_task_runner.h"
  14 #include "base/threading/thread_checker.h"
  15 #include "base/values.h"
  16 #include "ui/base/ime/chromeos/component_extension_ime_manager.h"
  17
  18 class Profile;
  19
  20 namespace chromeos {
  21
  22 // The implementation class of ComponentExtensionIMEManagerDelegate.
  23 class ComponentExtensionIMEManagerImpl
  24     : public ComponentExtensionIMEManagerDelegate {
  25  public:
  26   ComponentExtensionIMEManagerImpl();
  27   ~ComponentExtensionIMEManagerImpl() override;
  28
  29   // ComponentExtensionIMEManagerDelegate overrides:
  30   std::vector<ComponentExtensionIME> ListIME() override;
  31   void Load(Profile* profile,
  32             const std::string& extension_id,
  33             const std::string& manifest,
  34             const base::FilePath& file_path) override;
  35   void Unload(Profile* profile,
  36               const std::string& extension_id,
  37               const base::FilePath& file_path) override;
  38
  39   static bool IsIMEExtensionID(const std::string& id);
  40
  41  private:
  42   // Reads component extensions and extract their localized information: name,
  43   // description and ime id. This function fills them into |out_imes|.
  44   static void ReadComponentExtensionsInfo(
  45       std::vector<ComponentExtensionIME>* out_imes);
  46
  47   // Parses manifest string to manifest json dictionary value.
  48   static scoped_ptr<base::DictionaryValue> GetManifest(
  49       const std::string& manifest_string);
  50
  51   // Reads extension information: description, option page. This function
  52   // returns true on success, otherwise returns false.
  53   static bool ReadExtensionInfo(const base::DictionaryValue& manifest,
  54                                 const std::string& extension_id,
  55                                 ComponentExtensionIME* out);
  56
  57   // Reads each engine component in |dict|. |dict| is given by GetList with
  58   // kInputComponents key from manifest. This function returns true on success,
  59   // otherwise retrun false. This function must be called on FILE thread.
  60   static bool ReadEngineComponent(
  61       const ComponentExtensionIME& component_extension,
  62       const base::DictionaryValue& dict,
  63       ComponentExtensionEngine* out);
  64
  65   // The list of component extension IME.
  66   std::vector<ComponentExtensionIME> component_extension_list_;
  67
  68   DISALLOW_COPY_AND_ASSIGN(ComponentExtensionIMEManagerImpl);
  69 };
  70
  71 }  // namespace chromeos
  72
  73 #endif  // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_COMPONENT_EXTENSION_IME_MANAGER_IMPL_H_
  74