| // 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. |
| |
| // Interface for objects providing content setting rules. |
| |
| #ifndef CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_RULE_H_ |
| #define CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_RULE_H_ |
| |
| #include "base/compiler_specific.h" |
| #include "base/memory/linked_ptr.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/memory/scoped_vector.h" |
| #include "base/synchronization/lock.h" |
| #include "base/values.h" |
| #include "chrome/common/content_settings_pattern.h" |
| |
| namespace content_settings { |
| |
| struct Rule { |
| Rule(); |
| // Rule takes ownership of |value|. |
| Rule(const ContentSettingsPattern& primary_pattern, |
| const ContentSettingsPattern& secondary_pattern, |
| base::Value* value); |
| ~Rule(); |
| |
| ContentSettingsPattern primary_pattern; |
| ContentSettingsPattern secondary_pattern; |
| linked_ptr<base::Value> value; |
| }; |
| |
| class RuleIterator { |
| public: |
| virtual ~RuleIterator(); |
| virtual bool HasNext() const = 0; |
| virtual Rule Next() = 0; |
| }; |
| |
| class EmptyRuleIterator : public RuleIterator { |
| public: |
| virtual ~EmptyRuleIterator(); |
| virtual bool HasNext() const OVERRIDE; |
| virtual Rule Next() OVERRIDE; |
| }; |
| |
| class ConcatenationIterator : public RuleIterator { |
| public: |
| // ConcatenationIterator takes ownership of the pointers in the |iterators| |
| // list and |auto_lock|. |auto_lock| can be NULL if no locking is needed. |
| ConcatenationIterator(ScopedVector<RuleIterator>* iterators, |
| base::AutoLock* auto_lock); |
| virtual ~ConcatenationIterator(); |
| virtual bool HasNext() const OVERRIDE; |
| virtual Rule Next() OVERRIDE; |
| private: |
| ScopedVector<RuleIterator> iterators_; |
| scoped_ptr<base::AutoLock> auto_lock_; |
| }; |
| |
| } // namespace content_settings |
| |
| #endif // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_RULE_H_ |