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Side by Side Diff: chrome/browser/policy/policy_map.h

Issue 17034006: Add base namespace to more values in sync and elsewhere. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 7 years, 6 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef CHROME_BROWSER_POLICY_POLICY_MAP_H_ 5 #ifndef CHROME_BROWSER_POLICY_POLICY_MAP_H_
6 #define CHROME_BROWSER_POLICY_POLICY_MAP_H_ 6 #define CHROME_BROWSER_POLICY_POLICY_MAP_H_
7 7
8 #include <map> 8 #include <map>
9 #include <set> 9 #include <set>
10 #include <string> 10 #include <string>
11 11
12 #include "base/memory/scoped_ptr.h" 12 #include "base/memory/scoped_ptr.h"
13 #include "base/values.h" 13 #include "base/values.h"
14 #include "chrome/browser/policy/policy_types.h" 14 #include "chrome/browser/policy/policy_types.h"
15 15
16 namespace policy { 16 namespace policy {
17 17
18 // A mapping of policy names to policy values for a given policy namespace. 18 // A mapping of policy names to policy values for a given policy namespace.
19 class PolicyMap { 19 class PolicyMap {
20 public: 20 public:
21 // Each policy maps to an Entry which keeps the policy value as well as other 21 // Each policy maps to an Entry which keeps the policy value as well as other
22 // relevant data about the policy. 22 // relevant data about the policy.
23 struct Entry { 23 struct Entry {
24 PolicyLevel level; 24 PolicyLevel level;
25 PolicyScope scope; 25 PolicyScope scope;
26 Value* value; 26 base::Value* value;
27 27
28 Entry() 28 Entry()
29 : level(POLICY_LEVEL_RECOMMENDED), 29 : level(POLICY_LEVEL_RECOMMENDED),
30 scope(POLICY_SCOPE_USER), 30 scope(POLICY_SCOPE_USER),
31 value(NULL) {} 31 value(NULL) {}
32 32
33 // Returns true if |this| has higher priority than |other|. 33 // Returns true if |this| has higher priority than |other|.
34 bool has_higher_priority_than(const Entry& other) const; 34 bool has_higher_priority_than(const Entry& other) const;
35 35
36 // Returns true if |this| equals |other|. 36 // Returns true if |this| equals |other|.
37 bool Equals(const Entry& other) const; 37 bool Equals(const Entry& other) const;
38 }; 38 };
39 39
40 typedef std::map<std::string, Entry> PolicyMapType; 40 typedef std::map<std::string, Entry> PolicyMapType;
41 typedef PolicyMapType::const_iterator const_iterator; 41 typedef PolicyMapType::const_iterator const_iterator;
42 42
43 PolicyMap(); 43 PolicyMap();
44 virtual ~PolicyMap(); 44 virtual ~PolicyMap();
45 45
46 // Returns a weak reference to the entry currently stored for key |policy|, 46 // Returns a weak reference to the entry currently stored for key |policy|,
47 // or NULL if not found. Ownership is retained by the PolicyMap. 47 // or NULL if not found. Ownership is retained by the PolicyMap.
48 const Entry* Get(const std::string& policy) const; 48 const Entry* Get(const std::string& policy) const;
49 49
50 // Returns a weak reference to the value currently stored for key |policy|, 50 // Returns a weak reference to the value currently stored for key |policy|,
51 // or NULL if not found. Ownership is retained by the PolicyMap. 51 // or NULL if not found. Ownership is retained by the PolicyMap.
52 // This is equivalent to Get(policy)->value, when it doesn't return NULL. 52 // This is equivalent to Get(policy)->value, when it doesn't return NULL.
53 const Value* GetValue(const std::string& policy) const; 53 const base::Value* GetValue(const std::string& policy) const;
54 54
55 // Takes ownership of |value|. Overwrites any existing value stored in the 55 // Takes ownership of |value|. Overwrites any existing value stored in the
56 // map for the key |policy|. 56 // map for the key |policy|.
57 void Set(const std::string& policy, 57 void Set(const std::string& policy,
58 PolicyLevel level, 58 PolicyLevel level,
59 PolicyScope scope, 59 PolicyScope scope,
60 Value* value); 60 base::Value* value);
61 61
62 // Erase the given |policy|, if it exists in this map. 62 // Erase the given |policy|, if it exists in this map.
63 void Erase(const std::string& policy); 63 void Erase(const std::string& policy);
64 64
65 // Swaps the internal representation of |this| with |other|. 65 // Swaps the internal representation of |this| with |other|.
66 void Swap(PolicyMap* other); 66 void Swap(PolicyMap* other);
67 67
68 // |this| becomes a copy of |other|. Any existing policies are dropped. 68 // |this| becomes a copy of |other|. Any existing policies are dropped.
69 void CopyFrom(const PolicyMap& other); 69 void CopyFrom(const PolicyMap& other);
70 70
71 // Returns a copy of |this|. 71 // Returns a copy of |this|.
72 scoped_ptr<PolicyMap> DeepCopy() const; 72 scoped_ptr<PolicyMap> DeepCopy() const;
73 73
74 // Merges policies from |other| into |this|. Existing policies are only 74 // Merges policies from |other| into |this|. Existing policies are only
75 // overridden by those in |other| if they have a higher priority, as defined 75 // overridden by those in |other| if they have a higher priority, as defined
76 // by Entry::has_higher_priority_than(). If a policy is contained in both 76 // by Entry::has_higher_priority_than(). If a policy is contained in both
77 // maps with the same priority, the current value in |this| is preserved. 77 // maps with the same priority, the current value in |this| is preserved.
78 void MergeFrom(const PolicyMap& other); 78 void MergeFrom(const PolicyMap& other);
79 79
80 // Loads the values in |policies| into this PolicyMap. All policies loaded 80 // Loads the values in |policies| into this PolicyMap. All policies loaded
81 // will have |level| and |scope| in their entries. Existing entries are 81 // will have |level| and |scope| in their entries. Existing entries are
82 // replaced. 82 // replaced.
83 void LoadFrom(const DictionaryValue* policies, 83 void LoadFrom(const base::DictionaryValue* policies,
84 PolicyLevel level, 84 PolicyLevel level,
85 PolicyScope scope); 85 PolicyScope scope);
86 86
87 // Compares this value map against |other| and stores all key names that have 87 // Compares this value map against |other| and stores all key names that have
88 // different values in |differing_keys|. This includes keys that are present 88 // different values in |differing_keys|. This includes keys that are present
89 // only in one of the maps. |differing_keys| is not cleared before the keys 89 // only in one of the maps. |differing_keys| is not cleared before the keys
90 // are added. 90 // are added.
91 void GetDifferingKeys(const PolicyMap& other, 91 void GetDifferingKeys(const PolicyMap& other,
92 std::set<std::string>* differing_keys) const; 92 std::set<std::string>* differing_keys) const;
93 93
(...skipping 17 matching lines...) Expand all
111 const PolicyMapType::value_type& b); 111 const PolicyMapType::value_type& b);
112 112
113 PolicyMapType map_; 113 PolicyMapType map_;
114 114
115 DISALLOW_COPY_AND_ASSIGN(PolicyMap); 115 DISALLOW_COPY_AND_ASSIGN(PolicyMap);
116 }; 116 };
117 117
118 } // namespace policy 118 } // namespace policy
119 119
120 #endif // CHROME_BROWSER_POLICY_POLICY_MAP_H_ 120 #endif // CHROME_BROWSER_POLICY_POLICY_MAP_H_
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