apps/app_load_service.cc

   1 // Copyright 2013 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 "apps/app_load_service.h"
   6
   7 #include "apps/app_load_service_factory.h"
   8 #include "apps/app_restore_service.h"
   9 #include "apps/launcher.h"
  10 #include "chrome/browser/extensions/extension_service.h"
  11 #include "chrome/browser/extensions/unpacked_installer.h"
  12 #include "chrome/browser/profiles/profile.h"
  13 #include "content/public/browser/notification_details.h"
  14 #include "content/public/browser/notification_service.h"
  15 #include "content/public/browser/notification_types.h"
  16 #include "extensions/browser/app_window/app_window_registry.h"
  17 #include "extensions/browser/extension_host.h"
  18 #include "extensions/browser/extension_prefs.h"
  19 #include "extensions/browser/extension_registry.h"
  20 #include "extensions/browser/extension_system.h"
  21 #include "extensions/browser/notification_types.h"
  22 #include "extensions/common/extension.h"
  23
  24 using extensions::Extension;
  25 using extensions::ExtensionPrefs;
  26 using extensions::ExtensionSystem;
  27
  28 namespace apps {
  29
  30 AppLoadService::PostReloadAction::PostReloadAction()
  31     : action_type(LAUNCH_FOR_RELOAD),
  32       command_line(base::CommandLine::NO_PROGRAM) {
  33 }
  34
  35 AppLoadService::AppLoadService(Profile* profile)
  36     : profile_(profile) {
  37   registrar_.Add(this,
  38                  extensions::NOTIFICATION_EXTENSION_HOST_DID_STOP_LOADING,
  39                  content::NotificationService::AllSources());
  40   extensions::ExtensionRegistry::Get(profile_)->AddObserver(this);
  41 }
  42
  43 AppLoadService::~AppLoadService() {
  44   extensions::ExtensionRegistry::Get(profile_)->RemoveObserver(this);
  45 }
  46
  47 void AppLoadService::RestartApplication(const std::string& extension_id) {
  48   post_reload_actions_[extension_id].action_type = RESTART;
  49   ExtensionService* service = extensions::ExtensionSystem::Get(profile_)->
  50       extension_service();
  51   DCHECK(service);
  52   service->ReloadExtension(extension_id);
  53 }
  54
  55 void AppLoadService::RestartApplicationIfRunning(
  56     const std::string& extension_id) {
  57   if (apps::AppRestoreService::Get(profile_)->IsAppRestorable(extension_id))
  58     RestartApplication(extension_id);
  59 }
  60
  61 bool AppLoadService::LoadAndLaunch(const base::FilePath& extension_path,
  62                                    const base::CommandLine& command_line,
  63                                    const base::FilePath& current_dir) {
  64   ExtensionService* extension_service =
  65       ExtensionSystem::Get(profile_)->extension_service();
  66   std::string extension_id;
  67   if (!extensions::UnpackedInstaller::Create(extension_service)->
  68           LoadFromCommandLine(base::FilePath(extension_path), &extension_id)) {
  69     return false;
  70   }
  71
  72   // Schedule the app to be launched once loaded.
  73   PostReloadAction& action = post_reload_actions_[extension_id];
  74   action.action_type = LAUNCH_FOR_LOAD_AND_LAUNCH;
  75   action.command_line = command_line;
  76   action.current_dir = current_dir;
  77   return true;
  78 }
  79
  80 bool AppLoadService::Load(const base::FilePath& extension_path) {
  81   ExtensionService* extension_service =
  82       ExtensionSystem::Get(profile_)->extension_service();
  83   std::string extension_id;
  84   return extensions::UnpackedInstaller::Create(extension_service)->
  85       LoadFromCommandLine(base::FilePath(extension_path), &extension_id);
  86 }
  87
  88 // static
  89 AppLoadService* AppLoadService::Get(Profile* profile) {
  90   return apps::AppLoadServiceFactory::GetForProfile(profile);
  91 }
  92
  93 void AppLoadService::Observe(int type,
  94                              const content::NotificationSource& source,
  95                              const content::NotificationDetails& details) {
  96   DCHECK_EQ(type, extensions::NOTIFICATION_EXTENSION_HOST_DID_STOP_LOADING);
  97   extensions::ExtensionHost* host =
  98       content::Details<extensions::ExtensionHost>(details).ptr();
  99   const Extension* extension = host->extension();
 100   // It is possible for an extension to be unloaded before it stops loading.
 101   if (!extension)
 102     return;
 103   std::map<std::string, PostReloadAction>::iterator it =
 104       post_reload_actions_.find(extension->id());
 105   if (it == post_reload_actions_.end())
 106     return;
 107
 108   switch (it->second.action_type) {
 109     case LAUNCH_FOR_RELOAD:
 110       LaunchPlatformApp(profile_, extension, extensions::SOURCE_RELOAD);
 111       break;
 112     case RESTART:
 113       RestartPlatformApp(profile_, extension);
 114       break;
 115     case LAUNCH_FOR_LOAD_AND_LAUNCH:
 116       LaunchPlatformAppWithCommandLine(profile_,
 117                                        extension,
 118                                        it->second.command_line,
 119                                        it->second.current_dir,
 120                                        extensions::SOURCE_LOAD_AND_LAUNCH);
 121       break;
 122     default:
 123       NOTREACHED();
 124   }
 125
 126   post_reload_actions_.erase(it);
 127 }
 128
 129 void AppLoadService::OnExtensionUnloaded(
 130     content::BrowserContext* browser_context,
 131     const Extension* extension,
 132     extensions::UnloadedExtensionInfo::Reason reason) {
 133   if (!extension->is_platform_app())
 134     return;
 135
 136   extensions::ExtensionPrefs* extension_prefs =
 137       extensions::ExtensionPrefs::Get(browser_context);
 138   if (WasUnloadedForReload(extension->id(), reason) &&
 139       extension_prefs->IsActive(extension->id()) &&
 140       !HasPostReloadAction(extension->id())) {
 141     post_reload_actions_[extension->id()].action_type = LAUNCH_FOR_RELOAD;
 142   }
 143 }
 144
 145 bool AppLoadService::WasUnloadedForReload(
 146     const extensions::ExtensionId& extension_id,
 147     const extensions::UnloadedExtensionInfo::Reason reason) {
 148   if (reason == extensions::UnloadedExtensionInfo::REASON_DISABLE) {
 149     ExtensionPrefs* prefs = ExtensionPrefs::Get(profile_);
 150     return (prefs->GetDisableReasons(extension_id) &
 151             Extension::DISABLE_RELOAD) != 0;
 152   }
 153   return false;
 154 }
 155
 156 bool AppLoadService::HasPostReloadAction(const std::string& extension_id) {
 157   return post_reload_actions_.find(extension_id) != post_reload_actions_.end();
 158 }
 159
 160 }  // namespace apps