extensions/common/features/complex_feature.h

   1 // Copyright 2014 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_FEATURES_COMPLEX_FEATURE_H_
   6 #define EXTENSIONS_COMMON_FEATURES_COMPLEX_FEATURE_H_
   7
   8 #include <set>
   9 #include <string>
  10
  11 #include "base/memory/scoped_vector.h"
  12 #include "extensions/common/extension.h"
  13 #include "extensions/common/features/feature.h"
  14 #include "extensions/common/manifest.h"
  15
  16 namespace extensions {
  17
  18 // A ComplexFeature is composed of one or many Features. A ComplexFeature
  19 // is available if any Feature (i.e. permission rule) that composes it is
  20 // available, but not if only some combination of Features is available.
  21 class ComplexFeature : public Feature {
  22  public:
  23   typedef ScopedVector<Feature> FeatureList;
  24
  25   explicit ComplexFeature(scoped_ptr<FeatureList> features);
  26   ~ComplexFeature() override;
  27
  28   // extensions::Feature:
  29   Availability IsAvailableToManifest(const std::string& extension_id,
  30                                      Manifest::Type type,
  31                                      Manifest::Location location,
  32                                      int manifest_version,
  33                                      Platform platform) const override;
  34
  35   Availability IsAvailableToContext(const Extension* extension,
  36                                     Context context,
  37                                     const GURL& url,
  38                                     Platform platform) const override;
  39
  40   bool IsIdInBlacklist(const std::string& extension_id) const override;
  41   bool IsIdInWhitelist(const std::string& extension_id) const override;
  42
  43  protected:
  44   // extensions::Feature:
  45   std::string GetAvailabilityMessage(AvailabilityResult result,
  46                                      Manifest::Type type,
  47                                      const GURL& url,
  48                                      Context context) const override;
  49
  50   bool IsInternal() const override;
  51
  52  private:
  53   FeatureList features_;
  54
  55   DISALLOW_COPY_AND_ASSIGN(ComplexFeature);
  56 };
  57
  58 }  // namespace extensions
  59
  60 #endif  // EXTENSIONS_COMMON_FEATURES_COMPLEX_FEATURE_H_