chrome/common/extensions/api/storage/storage_schema_manifest_handler.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_COMMON_EXTENSIONS_API_STORAGE_STORAGE_SCHEMA_MANIFEST_HANDLER_H_
   6 #define CHROME_COMMON_EXTENSIONS_API_STORAGE_STORAGE_SCHEMA_MANIFEST_HANDLER_H_
   7
   8 #include "base/basictypes.h"
   9 #include "extensions/common/manifest_handler.h"
  10
  11 namespace policy {
  12 class Schema;
  13 }
  14
  15 namespace extensions {
  16
  17 // Handles the "storage.managed_schema" manifest key.
  18 class StorageSchemaManifestHandler : public ManifestHandler {
  19  public:
  20   StorageSchemaManifestHandler();
  21   virtual ~StorageSchemaManifestHandler();
  22
  23 #if defined(ENABLE_CONFIGURATION_POLICY)
  24   // Returns the managed storage schema defined for |extension|.
  25   // If the schema is invalid then the Schema returned is invalid too, and
  26   // the failure reason is stored in |error|.
  27   // This function does file I/O and must be called on a thread that allows I/O.
  28   static policy::Schema GetSchema(const Extension* extension,
  29                                   std::string* error);
  30 #endif
  31
  32  private:
  33   // ManifestHandler implementation:
  34   virtual bool Parse(Extension* extension, base::string16* error) OVERRIDE;
  35   virtual bool Validate(const Extension* extension,
  36                         std::string* error,
  37                         std::vector<InstallWarning>* warnings) const OVERRIDE;
  38   virtual const std::vector<std::string> Keys() const OVERRIDE;
  39
  40   DISALLOW_COPY_AND_ASSIGN(StorageSchemaManifestHandler);
  41 };
  42
  43 }  // namespace extensions
  44
  45 #endif  // CHROME_COMMON_EXTENSIONS_API_STORAGE_STORAGE_SCHEMA_MANIFEST_HANDLER_H_