chrome/browser/plugins/plugin_status_pref_setter.cc

   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 #include "chrome/browser/plugins/plugin_status_pref_setter.h"
   6
   7 #include "base/bind.h"
   8 #include "base/prefs/pref_service.h"
   9 #include "chrome/browser/chrome_notification_types.h"
  10 #include "chrome/browser/pepper_flash_settings_manager.h"
  11 #include "chrome/browser/plugins/plugin_data_remover_helper.h"
  12 #include "chrome/browser/plugins/plugin_prefs.h"
  13 #include "chrome/browser/profiles/profile.h"
  14 #include "chrome/common/pref_names.h"
  15 #include "content/public/browser/browser_thread.h"
  16 #include "content/public/browser/notification_source.h"
  17 #include "content/public/browser/plugin_service.h"
  18 #include "content/public/common/webplugininfo.h"
  19
  20 using content::BrowserThread;
  21 using content::PluginService;
  22
  23 PluginStatusPrefSetter::PluginStatusPrefSetter()
  24     : profile_(NULL),
  25       factory_(this) {}
  26
  27 PluginStatusPrefSetter::~PluginStatusPrefSetter() {
  28 }
  29
  30 void PluginStatusPrefSetter::Init(
  31     Profile* profile,
  32     const BooleanPrefMember::NamedChangeCallback& observer) {
  33   clear_plugin_lso_data_enabled_.Init(prefs::kClearPluginLSODataEnabled,
  34                                       profile->GetPrefs(), observer);
  35   pepper_flash_settings_enabled_.Init(prefs::kPepperFlashSettingsEnabled,
  36                                       profile->GetPrefs(), observer);
  37   profile_ = profile;
  38   registrar_.Add(this, chrome::NOTIFICATION_PLUGIN_ENABLE_STATUS_CHANGED,
  39                  content::Source<Profile>(profile));
  40   StartUpdate();
  41 }
  42
  43 void PluginStatusPrefSetter::Observe(
  44     int type,
  45     const content::NotificationSource& source,
  46     const content::NotificationDetails& details) {
  47   if (type == chrome::NOTIFICATION_PLUGIN_ENABLE_STATUS_CHANGED) {
  48     StartUpdate();
  49   } else {
  50     NOTREACHED();
  51   }
  52 }
  53
  54 void PluginStatusPrefSetter::StartUpdate() {
  55   PluginService::GetInstance()->GetPlugins(
  56       base::Bind(&PluginStatusPrefSetter::GotPlugins, factory_.GetWeakPtr(),
  57                  PluginPrefs::GetForProfile(profile_)));
  58 }
  59
  60 void PluginStatusPrefSetter::GotPlugins(
  61     scoped_refptr<PluginPrefs> plugin_prefs,
  62     const std::vector<content::WebPluginInfo>& plugins) {
  63   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  64   // Set the values on the PrefService instead of through the PrefMembers to
  65   // notify observers if they changed.
  66   profile_->GetPrefs()->SetBoolean(
  67       clear_plugin_lso_data_enabled_.GetPrefName().c_str(),
  68       PluginDataRemoverHelper::IsSupported(plugin_prefs.get()));
  69   profile_->GetPrefs()->SetBoolean(
  70       pepper_flash_settings_enabled_.GetPrefName().c_str(),
  71       PepperFlashSettingsManager::IsPepperFlashInUse(plugin_prefs.get(), NULL));
  72 }