chrome/browser/content_settings/content_settings_internal_extension_provider.h

   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_CONTENT_SETTINGS_CONTENT_SETTINGS_INTERNAL_EXTENSION_PROVIDER_H_
   6 #define CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_INTERNAL_EXTENSION_PROVIDER_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/synchronization/lock.h"
  10 #include "chrome/browser/content_settings/content_settings_observable_provider.h"
  11 #include "chrome/browser/content_settings/content_settings_origin_identifier_value_map.h"
  12 #include "chrome/common/content_settings.h"
  13 #include "content/public/browser/notification_observer.h"
  14 #include "content/public/browser/notification_registrar.h"
  15
  16 class ExtensionService;
  17
  18 namespace extensions {
  19 class Extension;
  20 }
  21
  22 namespace content_settings {
  23
  24 // A content settings provider which disables certain plugins for platform apps.
  25 class InternalExtensionProvider : public ObservableProvider,
  26                             public content::NotificationObserver {
  27  public:
  28   explicit InternalExtensionProvider(ExtensionService* extension_service);
  29
  30   virtual ~InternalExtensionProvider();
  31
  32   // ProviderInterface methods:
  33   virtual RuleIterator* GetRuleIterator(
  34       ContentSettingsType content_type,
  35       const ResourceIdentifier& resource_identifier,
  36       bool incognito) const OVERRIDE;
  37
  38   virtual bool SetWebsiteSetting(
  39       const ContentSettingsPattern& primary_pattern,
  40       const ContentSettingsPattern& secondary_pattern,
  41       ContentSettingsType content_type,
  42       const ResourceIdentifier& resource_identifier,
  43       base::Value* value) OVERRIDE;
  44
  45   virtual void ClearAllContentSettingsRules(ContentSettingsType content_type)
  46       OVERRIDE;
  47
  48   virtual void ShutdownOnUIThread() OVERRIDE;
  49
  50   // content::NotificationObserver implementation.
  51   virtual void Observe(int type,
  52                        const content::NotificationSource& source,
  53                        const content::NotificationDetails& details) OVERRIDE;
  54  private:
  55   void SetContentSettingForExtension(const extensions::Extension* extension,
  56                                      ContentSetting setting);
  57   void SetContentSettingForExtensionAndResource(
  58       const extensions::Extension* extension,
  59       const ResourceIdentifier& resource,
  60       ContentSetting setting);
  61
  62   OriginIdentifierValueMap value_map_;
  63
  64   // Used around accesses to the |value_map_| list to guarantee thread safety.
  65   mutable base::Lock lock_;
  66   scoped_ptr<content::NotificationRegistrar> registrar_;
  67
  68   DISALLOW_COPY_AND_ASSIGN(InternalExtensionProvider);
  69 };
  70
  71 }  // namespace content_settings
  72
  73 #endif  // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_INTERNAL_EXTENSION_PROVIDER_H_