TODO

chrome/browser/extensions/extension_content_settings_provider.h

+// 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_BROWSER_EXTENSIONS_EXTENSION_CONTENT_SETTINGS_PROVIDER_H_
+#define CHROME_BROWSER_EXTENSIONS_EXTENSION_CONTENT_SETTINGS_PROVIDER_H_
+
+#include "chrome/browser/content_settings/content_settings_base.h"
+#include "chrome/browser/content_settings/content_settings_provider.h"
+#include "chrome/browser/extensions/extension_content_settings_store.h"
+#include "content/common/notification_details.h"
+
+class ContentSettingsDetails;
+class Profile;
+
+class ExtensionDefaultContentSettingsProvider
+    : content_settings::DefaultProviderInterface,
+      ExtensionContentSettingsStore::Observer {
+ public:
+  ExtensionDefaultContentSettingsProvider(
+      Profile* profile,
+      ExtensionContentSettingsStore* extensions_settings,
+      bool incognito);
+
+  virtual ~ExtensionDefaultContentSettingsProvider();
+
+  // content_settings::DefaultProviderInterface
+  virtual ContentSetting ProvideDefaultSetting(
+      ContentSettingsType content_type) const;
+
+  virtual void UpdateDefaultSetting(ContentSettingsType content_type,
+                                    ContentSetting setting) {}
+
+  virtual void ResetToDefaults() {}
+
+  virtual bool DefaultSettingIsManaged(
+      ContentSettingsType content_type) const;
+
+  // ExtensionContentSettingsStore::Observer
+  void OnDefaultContentSettingChanged(
+    const ContentSettingsType& type,
+    ContentSetting setting,
+    bool incognito);
+
+  void OnContentSettingChanged(
+    const ContentSettingsPattern& pattern,
+    const ContentSettingsPattern& embedder_pattern,
+    const ContentSettingsType& type,
+    const content_settings::ResourceIdentifier& identifier,
+    ContentSetting setting,
+    bool incognito);
+
+  void OnDestruction();
+
+ private:
+  void NotifyObservers(const ContentSettingsDetails& details);
+
+  Profile* profile_;
+
+  bool incognito_;
+
+  ExtensionContentSettingsStore* extensions_settings_;  // Weak Pointer
+
+  DISALLOW_COPY_AND_ASSIGN(ExtensionDefaultContentSettingsProvider);
+};
+
+class ExtensionContentSettingsProvider
+    : content_settings::ProviderInterface,
+      ExtensionContentSettingsStore::Observer {
+ public:
+  ExtensionContentSettingsProvider(
+      Profile* profile,
+      ExtensionContentSettingsStore* extensions_settings,
+      bool incognito);
+
+  virtual ~ExtensionContentSettingsProvider();
+
+  // Overrides from content_settings::ProviderInterface
+  virtual bool ContentSettingsTypeIsManaged(ContentSettingsType content_type);
+
+  virtual ContentSetting GetContentSetting(
+      const GURL& requesting_url,
+      const GURL& embedding_url,
+      ContentSettingsType content_type,
+      const ResourceIdentifier& resource_identifier) const;
+
+  virtual void SetContentSetting(
+      const ContentSettingsPattern& requesting_url_pattern,
+      const ContentSettingsPattern& embedding_url_pattern,
+      ContentSettingsType content_type,
+      const ResourceIdentifier& resource_identifier,
+      ContentSetting content_setting) {}
+
+  // TODO(markusheintz): The UI needs a way to discover that these rules are
+  // managed by an extension.
+  virtual void GetAllContentSettingsRules(
+      ContentSettingsType content_type,
+      const ResourceIdentifier& resource_identifier,
+      Rules* content_setting_rules) const;
+
+  virtual void ClearAllContentSettingsRules(
+      ContentSettingsType content_type) {}
+
+  virtual void ResetToDefaults() {}
+
+  // Overrides from ExtensionContentSettingsStore::Observer
+  virtual void OnDefaultContentSettingChanged(
+    const ContentSettingsType& type,
+    ContentSetting setting,
+    bool incognito);
+
+  virtual void OnContentSettingChanged(
+    const ContentSettingsPattern& pattern,
+    const ContentSettingsPattern& embedder_pattern,
+    const ContentSettingsType& type,
+    const content_settings::ResourceIdentifier& identifier,
+    ContentSetting setting,
+    bool incognito);
+
+  virtual void OnDestruction();
+
+ private:
+  void NotifyObservers(const ContentSettingsDetails& details);
+
+  // TODO(markusheintz): That's only needed to send Notifications about changed
+  // ContentSettings. This will be changed for all ContentSettingsProviders.
+  // The HCSM will become an Observer of the ContentSettings Provider and send
+  // out the Notifications itselve.
+  Profile* profile_;
+
+  bool incognito_;
+
+  ExtensionContentSettingsStore* extensions_settings_;  // Weak Pointer
+
+  DISALLOW_COPY_AND_ASSIGN(ExtensionContentSettingsProvider);
+};
+
+#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_CONTENT_SETTINGS_PROVIDER_H_