TODO

chrome/browser/extensions/extension_content_settings_provider.cc

+// 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.
+
+#include "chrome/browser/extensions/extension_content_settings_provider.h"
+
+#include "chrome/browser/content_settings/content_settings_details.h"
+#include "chrome/browser/profiles/profile.h"
+#include "content/common/notification_service.h"
+#include "content/common/notification_source.h"
+
+// ////////////////////////////////////////////////////////////////////////////
+// class ExtensionDefaultContentSettingsProvider
+//
+ExtensionDefaultContentSettingsProvider
+    ::ExtensionDefaultContentSettingsProvider(
+        Profile* profile,
+        ExtensionContentSettingsStore* extensions_settings,
+        bool incognito)
+        : profile_(profile),
+          incognito_(incognito),
+          extensions_settings_(extensions_settings) {
+  extensions_settings_->AddObserver(this);
+}
+
+ExtensionDefaultContentSettingsProvider
+    ::~ExtensionDefaultContentSettingsProvider() {
+}
+
+ContentSetting ExtensionDefaultContentSettingsProvider::ProvideDefaultSetting(
+      ContentSettingsType content_type) const {
+  return extensions_settings_->GetEffectiveDefaultContentSetting(
+      content_type);
+}
+
+bool ExtensionDefaultContentSettingsProvider::DefaultSettingIsManaged(
+      ContentSettingsType content_type) const {
+  return false;
+}
+
+void ExtensionDefaultContentSettingsProvider::OnDefaultContentSettingChanged(
+    const ContentSettingsType& type,
+    ContentSetting setting,
+    bool incognito) {
+  if (incognito_ != incognito)
+    return;
+  NotifyObservers(ContentSettingsDetails(
+      ContentSettingsPattern(), type, ""));
+}
+
+void ExtensionDefaultContentSettingsProvider::OnContentSettingChanged(
+    const ContentSettingsPattern& pattern,
+    const ContentSettingsPattern& embedder_pattern,
+    const ContentSettingsType& type,
+    const content_settings::ResourceIdentifier& identifier,
+    ContentSetting setting,
+    bool incognito) {
+}
+
+void ExtensionDefaultContentSettingsProvider::OnDestruction() {
+  CHECK(extensions_settings_);
+  extensions_settings_->RemoveObserver(this);
+  extensions_settings_ = NULL;
+}
+
+void ExtensionDefaultContentSettingsProvider::NotifyObservers(
+    const ContentSettingsDetails& details) {
+  if (profile_ == NULL)
+    return;
+  NotificationService::current()->Notify(
+      NotificationType::CONTENT_SETTINGS_CHANGED,
+      Source<HostContentSettingsMap>(profile_->GetHostContentSettingsMap()),
+      Details<const ContentSettingsDetails>(&details));
+}
+
+// ////////////////////////////////////////////////////////////////////////////
+// class ExtensionContentSettingsProvider
+//
+ExtensionContentSettingsProvider::ExtensionContentSettingsProvider(
+      Profile* profile,
+      ExtensionContentSettingsStore* extensions_settings,
+      bool incognito)
+      : profile_(profile),
+        incognito_(incognito),
+        extensions_settings_(extensions_settings) {
+  extensions_settings_->AddObserver(this);
+}
+
+ExtensionContentSettingsProvider::~ExtensionContentSettingsProvider() {
+}
+
+bool ExtensionContentSettingsProvider::ContentSettingsTypeIsManaged(
+    ContentSettingsType content_type) {
+  // TODO(markusheintz): Maybe an extension should be able to specify
+  // whether it wants to manage a certain content type or not.
+  return false;
+}
+
+ContentSetting ExtensionContentSettingsProvider::GetContentSetting(
+     const GURL& requesting_url,
+      const GURL& embedding_url,
+      ContentSettingsType content_type,
+      const content_settings::ResourceIdentifier& resource_identifier) const {
+  // TODO(markusheintz): Instead of getting the Effective setting every time
+  // effective patterns could be cached in here.
+  return extensions_settings_->GetEffectiveContentSetting(
+      requesting_url,
+      embedding_url,
+      content_type,
+      resource_identifier,
+      incognito_);
+}
+
+void ExtensionContentSettingsProvider::GetAllContentSettingsRules(
+      ContentSettingsType content_type,
+      const content_settings::ResourceIdentifier& resource_identifier,
+      Rules* content_setting_rules) const {
+  // TODO(markusheintz): Implement get all effective patterns.
+}
+
+void ExtensionContentSettingsProvider::NotifyObservers(
+    const ContentSettingsDetails& details) {
+  if (profile_ == NULL)
+    return;
+  NotificationService::current()->Notify(
+      NotificationType::CONTENT_SETTINGS_CHANGED,
+      Source<HostContentSettingsMap>(profile_->GetHostContentSettingsMap()),
+      Details<const ContentSettingsDetails>(&details));
+}
+
+void ExtensionContentSettingsProvider::OnDefaultContentSettingChanged(
+    const ContentSettingsType& type,
+    ContentSetting setting,
+    bool incognito) {
+}
+
+void ExtensionContentSettingsProvider::OnContentSettingChanged(
+    const ContentSettingsPattern& pattern,
+    const ContentSettingsPattern& embedder_pattern,
+    const ContentSettingsType& type,
+    const content_settings::ResourceIdentifier& identifier,
+    ContentSetting setting,
+    bool incognito) {
+  if (incognito_ != incognito)
+    return;
+  // TODO(markusheintz): Be more consise.
+  NotifyObservers(ContentSettingsDetails(
+      ContentSettingsPattern(), CONTENT_SETTINGS_TYPE_DEFAULT, ""));
+}
+
+void ExtensionContentSettingsProvider::OnDestruction() {
+  CHECK(extensions_settings_);
+  extensions_settings_->RemoveObserver(this);
+  extensions_settings_ = NULL;
+}