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 <string>
   9
  10 #include "base/memory/scoped_vector.h"
  11 #include "extensions/common/extension.h"
  12 #include "extensions/common/features/feature.h"
  13 #include "extensions/common/manifest.h"
  14
  15 namespace extensions {
  16
  17 // A ComplexFeature is composed of one or many Features. A ComplexFeature
  18 // is available if any Feature (i.e. permission rule) that composes it is
  19 // available, but not if only some combination of Features is available.
  20 class ComplexFeature : public Feature {
  21  public:
  22   typedef ScopedVector<Feature> FeatureList;
  23
  24   explicit ComplexFeature(scoped_ptr<FeatureList> features);
  25   virtual ~ComplexFeature();
  26
  27   // extensions::Feature:
  28   virtual Availability IsAvailableToManifest(const std::string& extension_id,
  29                                              Manifest::Type type,
  30                                              Location location,
  31                                              int manifest_version,
  32                                              Platform platform) const OVERRIDE;
  33
  34   virtual Availability IsAvailableToContext(const Extension* extension,
  35                                             Context context,
  36                                             const GURL& url,
  37                                             Platform platform) const OVERRIDE;
  38
  39   virtual bool IsIdInWhitelist(const std::string& extension_id) const OVERRIDE;
  40   virtual bool IsBlockedInServiceWorker() const OVERRIDE;
  41
  42  protected:
  43   // extensions::Feature:
  44   virtual std::string GetAvailabilityMessage(
  45       AvailabilityResult result,
  46       Manifest::Type type,
  47       const GURL& url,
  48       Context context) const OVERRIDE;
  49
  50   virtual std::set<Context>* GetContexts() OVERRIDE;
  51
  52   virtual bool IsInternal() const OVERRIDE;
  53
  54  private:
  55   FeatureList features_;
  56
  57   DISALLOW_COPY_AND_ASSIGN(ComplexFeature);
  58 };
  59
  60 }  // namespace extensions
  61
  62 #endif  // EXTENSIONS_COMMON_FEATURES_COMPLEX_FEATURE_H_