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
20using content::BrowserThread;
21using content::PluginService;
22
23PluginStatusPrefSetter::PluginStatusPrefSetter()
24    : profile_(NULL),
25      factory_(this) {}
26
27PluginStatusPrefSetter::~PluginStatusPrefSetter() {
28}
29
30void 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
43void 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
54void PluginStatusPrefSetter::StartUpdate() {
55  PluginService::GetInstance()->GetPlugins(
56      base::Bind(&PluginStatusPrefSetter::GotPlugins, factory_.GetWeakPtr(),
57                 PluginPrefs::GetForProfile(profile_)));
58}
59
60void 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}
73