blob: 3b766c8001db2421c1ab355493dc506c5167521d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef EXTENSIONS_COMMON_FEATURES_BASE_FEATURE_PROVIDER_H_
#define EXTENSIONS_COMMON_FEATURES_BASE_FEATURE_PROVIDER_H_
#include <map>
#include <string>
#include <vector>
#include "base/memory/scoped_ptr.h"
#include "extensions/common/features/feature_provider.h"
#include "extensions/common/features/simple_feature.h"
namespace Base {
class DictionaryValue;
}
namespace extensions {
// Reads Features out of a simple JSON file description.
class BaseFeatureProvider : public FeatureProvider {
public:
typedef SimpleFeature*(*FeatureFactory)();
// Creates a new BaseFeatureProvider. Pass null to |factory| to have the
// provider create plain old Feature instances.
BaseFeatureProvider(const base::DictionaryValue& root,
FeatureFactory factory);
~BaseFeatureProvider() override;
// Gets the feature |feature_name|, if it exists.
Feature* GetFeature(const std::string& feature_name) const override;
Feature* GetParent(Feature* feature) const override;
std::vector<Feature*> GetChildren(const Feature& parent) const override;
const std::vector<std::string>& GetAllFeatureNames() const override;
private:
std::map<std::string, scoped_ptr<Feature>> features_;
// Populated on first use.
mutable std::vector<std::string> feature_names_;
FeatureFactory factory_;
};
} // namespace extensions
#endif // EXTENSIONS_COMMON_FEATURES_BASE_FEATURE_PROVIDER_H_
|
