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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 | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_WARNING_SERVICE_H_ | |
6 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_WARNING_SERVICE_H_ | |
7 | |
8 #include <set> | |
9 #include <string> | |
10 #include <vector> | |
11 | |
12 #include "base/observer_list.h" | |
13 #include "base/scoped_observer.h" | |
14 #include "base/threading/non_thread_safe.h" | |
15 #include "chrome/browser/extensions/extension_warning_set.h" | |
16 #include "extensions/browser/extension_registry_observer.h" | |
17 | |
18 // TODO(battre) Remove the Extension prefix. | |
19 | |
20 class Profile; | |
21 | |
22 namespace content { | |
23 class NotificationDetails; | |
24 class NotificationSource; | |
25 } | |
26 | |
27 namespace extensions { | |
28 | |
29 class ExtensionRegistry; | |
30 | |
31 // Manages a set of warnings caused by extensions. These warnings (e.g. | |
32 // conflicting modifications of network requests by extensions, slow extensions, | |
33 // etc.) trigger a warning badge in the UI and and provide means to resolve | |
34 // them. This class must be used on the UI thread only. | |
35 class ExtensionWarningService : public ExtensionRegistryObserver, | |
36 public base::NonThreadSafe { | |
37 public: | |
38 class Observer { | |
39 public: | |
40 virtual void ExtensionWarningsChanged() = 0; | |
41 }; | |
42 | |
43 // |profile| may be NULL for testing. In this case, be sure to not insert | |
44 // any warnings. | |
45 explicit ExtensionWarningService(Profile* profile); | |
46 virtual ~ExtensionWarningService(); | |
47 | |
48 // Clears all warnings of types contained in |types| and notifies observers | |
49 // of the changed warnings. | |
50 void ClearWarnings(const std::set<ExtensionWarning::WarningType>& types); | |
51 | |
52 // Returns all types of warnings effecting extension |extension_id|. | |
53 std::set<ExtensionWarning::WarningType> GetWarningTypesAffectingExtension( | |
54 const std::string& extension_id) const; | |
55 | |
56 // Returns all localized warnings for extension |extension_id| in |result|. | |
57 std::vector<std::string> GetWarningMessagesForExtension( | |
58 const std::string& extension_id) const; | |
59 | |
60 const ExtensionWarningSet& warnings() const { return warnings_; } | |
61 | |
62 // Adds a set of warnings and notifies observers if any warning is new. | |
63 void AddWarnings(const ExtensionWarningSet& warnings); | |
64 | |
65 // Notifies the ExtensionWarningService of profile |profile_id| that new | |
66 // |warnings| occurred and triggers a warning badge. | |
67 static void NotifyWarningsOnUI(void* profile_id, | |
68 const ExtensionWarningSet& warnings); | |
69 | |
70 void AddObserver(Observer* observer); | |
71 void RemoveObserver(Observer* observer); | |
72 | |
73 private: | |
74 void NotifyWarningsChanged(); | |
75 | |
76 // ExtensionRegistryObserver implementation. | |
77 virtual void OnExtensionUnloaded(content::BrowserContext* browser_context, | |
78 const Extension* extension, | |
79 UnloadedExtensionInfo::Reason reason) | |
80 OVERRIDE; | |
81 | |
82 // Currently existing warnings. | |
83 ExtensionWarningSet warnings_; | |
84 | |
85 Profile* profile_; | |
86 | |
87 // Listen to extension unloaded notifications. | |
88 ScopedObserver<ExtensionRegistry, ExtensionRegistryObserver> | |
89 extension_registry_observer_; | |
90 | |
91 ObserverList<Observer> observer_list_; | |
92 }; | |
93 | |
94 } // namespace extensions | |
95 | |
96 #endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_WARNING_SERVICE_H_ | |
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