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// Copyright (c) 2011 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_URL_PATTERN_SET_H_
#define CHROME_COMMON_EXTENSIONS_URL_PATTERN_SET_H_
#pragma once
#include <set>
#include "chrome/common/extensions/url_pattern.h"
class GURL;
// Represents the set of URLs an extension uses for web content.
class URLPatternSet {
public:
typedef std::set<URLPattern>::const_iterator const_iterator;
typedef std::set<URLPattern>::iterator iterator;
// Clears |out| and populates the set with |set1| - |set2|.
static void CreateDifference(const URLPatternSet& set1,
const URLPatternSet& set2,
URLPatternSet* out);
// Clears |out| and populates the set with the intersection of |set1|
// and |set2|.
static void CreateIntersection(const URLPatternSet& set1,
const URLPatternSet& set2,
URLPatternSet* out);
// Clears |out| and populates the set with the union of |set1| and |set2|.
static void CreateUnion(const URLPatternSet& set1,
const URLPatternSet& set2,
URLPatternSet* out);
URLPatternSet();
URLPatternSet(const URLPatternSet& rhs);
explicit URLPatternSet(const std::set<URLPattern>& patterns);
~URLPatternSet();
URLPatternSet& operator=(const URLPatternSet& rhs);
bool operator==(const URLPatternSet& rhs) const;
bool is_empty() const;
const std::set<URLPattern>& patterns() const { return patterns_; }
const_iterator begin() const { return patterns_.begin(); }
const_iterator end() const { return patterns_.end(); }
void AddPattern(const URLPattern& pattern);
void ClearPatterns();
// Returns true if the permission |set| is a subset of this.
bool Contains(const URLPatternSet& set) const;
// Test if the extent contains a URL.
bool MatchesURL(const GURL& url) const;
// Returns true if there is a single URL that would be in two extents.
bool OverlapsWith(const URLPatternSet& other) const;
private:
// The list of URL patterns that comprise the extent.
std::set<URLPattern> patterns_;
};
#endif // CHROME_COMMON_EXTENSIONS_URL_PATTERN_SET_H_
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