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// Copyright (c) 2012 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 CHROME_COMMON_EXTENSIONS_FEATURES_SIMPLE_FEATURE_H_
#define CHROME_COMMON_EXTENSIONS_FEATURES_SIMPLE_FEATURE_H_
#include <set>
#include <string>
#include "base/gtest_prod_util.h"
#include "base/values.h"
#include "chrome/common/chrome_version_info.h"
#include "chrome/common/extensions/extension.h"
#include "extensions/common/features/feature.h"
#include "extensions/common/manifest.h"
namespace extensions {
class ComplexFeature;
class SimpleFeature : public Feature {
public:
SimpleFeature();
SimpleFeature(const SimpleFeature& other);
virtual ~SimpleFeature();
std::set<std::string>* whitelist() { return &whitelist_; }
std::set<Manifest::Type>* extension_types() { return &extension_types_; }
// Parses the JSON representation of a feature into the fields of this object.
// Unspecified values in the JSON are not modified in the object. This allows
// us to implement inheritance by parsing one value after another. Returns
// the error found, or an empty string on success.
virtual std::string Parse(const base::DictionaryValue* value);
// Returns true if the feature contains the same values as another.
bool Equals(const SimpleFeature& other) const;
Location location() const { return location_; }
void set_location(Location location) { location_ = location; }
std::set<Platform>* platforms() { return &platforms_; }
int min_manifest_version() const { return min_manifest_version_; }
void set_min_manifest_version(int min_manifest_version) {
min_manifest_version_ = min_manifest_version;
}
int max_manifest_version() const { return max_manifest_version_; }
void set_max_manifest_version(int max_manifest_version) {
max_manifest_version_ = max_manifest_version;
}
Availability IsAvailableToContext(const Extension* extension,
Context context) const {
return IsAvailableToContext(extension, context, GURL());
}
Availability IsAvailableToContext(const Extension* extension,
Context context,
Platform platform) const {
return IsAvailableToContext(extension, context, GURL(), platform);
}
Availability IsAvailableToContext(const Extension* extension,
Context context,
const GURL& url) const {
return IsAvailableToContext(extension, context, url, GetCurrentPlatform());
}
// extension::Feature:
virtual Availability IsAvailableToManifest(const std::string& extension_id,
Manifest::Type type,
Location location,
int manifest_version,
Platform platform) const OVERRIDE;
virtual Availability IsAvailableToContext(const Extension* extension,
Context context,
const GURL& url,
Platform platform) const OVERRIDE;
virtual std::string GetAvailabilityMessage(AvailabilityResult result,
Manifest::Type type,
const GURL& url,
Context context) const OVERRIDE;
virtual std::set<Context>* GetContexts() OVERRIDE;
virtual bool IsInternal() const OVERRIDE;
virtual bool IsIdInWhitelist(const std::string& extension_id) const OVERRIDE;
static bool IsIdInWhitelist(const std::string& extension_id,
const std::set<std::string>& whitelist);
protected:
Availability CreateAvailability(AvailabilityResult result) const;
Availability CreateAvailability(AvailabilityResult result,
Manifest::Type type) const;
Availability CreateAvailability(AvailabilityResult result,
const GURL& url) const;
Availability CreateAvailability(AvailabilityResult result,
Context context) const;
private:
// For clarity and consistency, we handle the default value of each of these
// members the same way: it matches everything. It is up to the higher level
// code that reads Features out of static data to validate that data and set
// sensible defaults.
std::set<std::string> whitelist_;
std::set<Manifest::Type> extension_types_;
std::set<Context> contexts_;
URLPatternSet matches_;
Location location_; // we only care about component/not-component now
std::set<Platform> platforms_;
int min_manifest_version_;
int max_manifest_version_;
chrome::VersionInfo::Channel channel_;
bool has_parent_;
bool channel_has_been_set_;
FRIEND_TEST_ALL_PREFIXES(ExtensionSimpleFeatureTest, Context);
};
} // namespace extensions
#endif // CHROME_COMMON_EXTENSIONS_FEATURES_SIMPLE_FEATURE_H_
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