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