extensions/common/extension_builder.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 EXTENSIONS_COMMON_EXTENSION_BUILDER_H_
   6 #define EXTENSIONS_COMMON_EXTENSION_BUILDER_H_
   7
   8 #include "base/files/file_path.h"
   9 #include "base/memory/ref_counted.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "extensions/common/manifest.h"
  12 #include "extensions/common/value_builder.h"
  13
  14 namespace extensions {
  15 class Extension;
  16
  17 // An easier way to create extensions than Extension::Create.  The
  18 // constructor sets up some defaults which are customized using the
  19 // methods.  The only method that must be called is SetManifest().
  20 class ExtensionBuilder {
  21  public:
  22   ExtensionBuilder();
  23   ~ExtensionBuilder();
  24
  25   // Can only be called once, after which it's invalid to use the builder.
  26   // CHECKs that the extension was created successfully.
  27   scoped_refptr<Extension> Build();
  28
  29   // Workaround to allow you to pass rvalue ExtensionBuilders by reference to
  30   // other functions, e.g. UseBuilder(ExtensionBuilder().Pass())
  31   ExtensionBuilder& Pass() { return *this; }
  32
  33   // Defaults to FilePath().
  34   ExtensionBuilder& SetPath(const base::FilePath& path);
  35
  36   // Defaults to Manifest::UNPACKED.
  37   ExtensionBuilder& SetLocation(Manifest::Location location);
  38
  39   ExtensionBuilder& SetManifest(scoped_ptr<base::DictionaryValue> manifest);
  40   ExtensionBuilder& SetManifest(DictionaryBuilder& manifest_builder) {
  41     return SetManifest(manifest_builder.Build());
  42   }
  43
  44   // Adds the keys from the DictionaryBuilder to the manifest, with new keys
  45   // taking precedence.
  46   ExtensionBuilder& MergeManifest(DictionaryBuilder& builder);
  47
  48   ExtensionBuilder& AddFlags(int init_from_value_flags);
  49
  50   // Defaults to the default extension ID created in Extension::Create.
  51   ExtensionBuilder& SetID(const std::string& id);
  52
  53  private:
  54   base::FilePath path_;
  55   Manifest::Location location_;
  56   scoped_ptr<base::DictionaryValue> manifest_;
  57   int flags_;
  58   std::string id_;
  59 };
  60
  61 } // namespace extensions
  62
  63 #endif  // EXTENSIONS_COMMON_EXTENSION_BUILDER_H_