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   virtual ~ComplexFeature();
  27
  28   // extensions::Feature:
  29   virtual 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   virtual Availability IsAvailableToContext(const Extension* extension,
  36                                             Context context,
  37                                             const GURL& url,
  38                                             Platform platform) const OVERRIDE;
  39
  40   virtual bool IsIdInBlacklist(const std::string& extension_id) const OVERRIDE;
  41   virtual bool IsIdInWhitelist(const std::string& extension_id) const OVERRIDE;
  42
  43  protected:
  44   // extensions::Feature:
  45   virtual std::string GetAvailabilityMessage(
  46       AvailabilityResult result,
  47       Manifest::Type type,
  48       const GURL& url,
  49       Context context) const OVERRIDE;
  50
  51   virtual bool IsInternal() const OVERRIDE;
  52
  53  private:
  54   FeatureList features_;
  55
  56   DISALLOW_COPY_AND_ASSIGN(ComplexFeature);
  57 };
  58
  59 }  // namespace extensions
  60
  61 #endif  // EXTENSIONS_COMMON_FEATURES_COMPLEX_FEATURE_H_