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