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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 EXTENSIONS_COMMON_EVENT_MATCHER_H_
#define EXTENSIONS_COMMON_EVENT_MATCHER_H_
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "base/values.h"
namespace extensions {
class EventFilteringInfo;
extern const char kEventFilterServiceTypeKey[];
// Matches EventFilteringInfos against a set of criteria. This is intended to
// be used by EventFilter which performs efficient URL matching across
// potentially many EventMatchers itself. This is why this class only exposes
// MatchNonURLCriteria() - URL matching is handled by EventFilter.
class EventMatcher {
public:
EventMatcher(scoped_ptr<base::DictionaryValue> filter,
int routing_id);
~EventMatcher();
// Returns true if |event_info| satisfies this matcher's criteria, not taking
// into consideration any URL criteria.
bool MatchNonURLCriteria(const EventFilteringInfo& event_info) const;
int GetURLFilterCount() const;
bool GetURLFilter(int i, base::DictionaryValue** url_filter_out);
int GetWindowTypeCount() const;
bool GetWindowType(int i, std::string* window_type_out) const;
std::string GetServiceTypeFilter() const;
bool HasURLFilters() const;
bool HasWindowTypes() const;
int GetInstanceID() const;
int GetRoutingID() const;
base::DictionaryValue* value() const {
return filter_.get();
}
private:
// Contains a dictionary that corresponds to a single event filter, eg:
//
// {url: [{hostSuffix: 'google.com'}]}
//
// The valid filter keys are event-specific.
scoped_ptr<base::DictionaryValue> filter_;
int routing_id_;
DISALLOW_COPY_AND_ASSIGN(EventMatcher);
};
} // namespace extensions
#endif // EXTENSIONS_COMMON_EVENT_MATCHER_H_
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