src/apps/shell/browser/shell_extension_system.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/shell/browser/shell_extension_system.h"
   6
   7 #include <string>
   8
   9 #include "apps/shell/browser/api/shell/shell_api.h"
  10 #include "base/file_util.h"
  11 #include "base/files/file_path.h"
  12 #include "chrome/browser/chrome_notification_types.h"
  13 #include "content/public/browser/browser_context.h"
  14 #include "content/public/browser/browser_thread.h"
  15 #include "content/public/browser/notification_details.h"
  16 #include "content/public/browser/notification_service.h"
  17 #include "content/public/browser/notification_source.h"
  18 #include "extensions/browser/event_router.h"
  19 #include "extensions/browser/extension_prefs.h"
  20 #include "extensions/browser/extension_registry.h"
  21 #include "extensions/browser/info_map.h"
  22 #include "extensions/browser/lazy_background_task_queue.h"
  23 #include "extensions/browser/process_manager.h"
  24 #include "extensions/browser/quota_service.h"
  25 #include "extensions/browser/runtime_data.h"
  26 #include "extensions/common/file_util.h"
  27
  28 using content::BrowserContext;
  29 using content::BrowserThread;
  30
  31 namespace extensions {
  32
  33 ShellExtensionSystem::ShellExtensionSystem(BrowserContext* browser_context)
  34     : browser_context_(browser_context) {
  35 }
  36
  37 ShellExtensionSystem::~ShellExtensionSystem() {
  38 }
  39
  40 bool ShellExtensionSystem::LoadApp(const base::FilePath& app_dir) {
  41   // app_shell only supports unpacked extensions.
  42   // NOTE: If you add packed extension support consider removing the flag
  43   // FOLLOW_SYMLINKS_ANYWHERE below. Packed extensions should not have symlinks.
  44   CHECK(base::DirectoryExists(app_dir)) << app_dir.AsUTF8Unsafe();
  45   int load_flags = Extension::FOLLOW_SYMLINKS_ANYWHERE;
  46   std::string load_error;
  47   extension_ = file_util::LoadExtension(
  48       app_dir, Manifest::COMMAND_LINE, load_flags, &load_error);
  49   if (!extension_) {
  50     LOG(ERROR) << "Loading extension at " << app_dir.value()
  51         << " failed with: " << load_error;
  52     return false;
  53   }
  54   app_id_ = extension_->id();
  55
  56   // TODO(jamescook): We may want to do some of these things here:
  57   // * Create a PermissionsUpdater.
  58   // * Call PermissionsUpdater::GrantActivePermissions().
  59   // * Call ExtensionService::SatisfyImports().
  60   // * Call ExtensionPrefs::OnExtensionInstalled().
  61   // * Send NOTIFICATION_EXTENSION_INSTALLED_DEPRECATED.
  62
  63   ExtensionRegistry::Get(browser_context_)->AddEnabled(extension_);
  64
  65   RegisterExtensionWithRequestContexts(extension_);
  66
  67   content::NotificationService::current()->Notify(
  68       chrome::NOTIFICATION_EXTENSION_LOADED_DEPRECATED,
  69       content::Source<BrowserContext>(browser_context_),
  70       content::Details<const Extension>(extension_));
  71
  72   // Inform the rest of the extensions system to start.
  73   ready_.Signal();
  74   content::NotificationService::current()->Notify(
  75       chrome::NOTIFICATION_EXTENSIONS_READY,
  76       content::Source<BrowserContext>(browser_context_),
  77       content::NotificationService::NoDetails());
  78   return true;
  79 }
  80
  81 void ShellExtensionSystem::LaunchApp() {
  82   // Send the onLaunched event.
  83   DCHECK(extension_.get());
  84   apps::ShellAPI::DispatchOnLaunchedEvent(event_router_.get(),
  85                                           extension_.get());
  86 }
  87
  88 void ShellExtensionSystem::Shutdown() {
  89 }
  90
  91 void ShellExtensionSystem::InitForRegularProfile(bool extensions_enabled) {
  92   runtime_data_.reset(
  93       new RuntimeData(ExtensionRegistry::Get(browser_context_)));
  94   lazy_background_task_queue_.reset(
  95       new LazyBackgroundTaskQueue(browser_context_));
  96   event_router_.reset(
  97       new EventRouter(browser_context_, ExtensionPrefs::Get(browser_context_)));
  98   process_manager_.reset(ProcessManager::Create(browser_context_));
  99   quota_service_.reset(new QuotaService);
 100 }
 101
 102 ExtensionService* ShellExtensionSystem::extension_service() {
 103   return NULL;
 104 }
 105
 106 RuntimeData* ShellExtensionSystem::runtime_data() {
 107   return runtime_data_.get();
 108 }
 109
 110 ManagementPolicy* ShellExtensionSystem::management_policy() {
 111   return NULL;
 112 }
 113
 114 UserScriptMaster* ShellExtensionSystem::user_script_master() {
 115   return NULL;
 116 }
 117
 118 ProcessManager* ShellExtensionSystem::process_manager() {
 119   return process_manager_.get();
 120 }
 121
 122 StateStore* ShellExtensionSystem::state_store() {
 123   return NULL;
 124 }
 125
 126 StateStore* ShellExtensionSystem::rules_store() {
 127   return NULL;
 128 }
 129
 130 InfoMap* ShellExtensionSystem::info_map() {
 131   if (!info_map_.get())
 132     info_map_ = new InfoMap;
 133   return info_map_;
 134 }
 135
 136 LazyBackgroundTaskQueue* ShellExtensionSystem::lazy_background_task_queue() {
 137   return lazy_background_task_queue_.get();
 138 }
 139
 140 EventRouter* ShellExtensionSystem::event_router() {
 141   return event_router_.get();
 142 }
 143
 144 ExtensionWarningService* ShellExtensionSystem::warning_service() {
 145   return NULL;
 146 }
 147
 148 Blacklist* ShellExtensionSystem::blacklist() {
 149   return NULL;
 150 }
 151
 152 ErrorConsole* ShellExtensionSystem::error_console() {
 153   return NULL;
 154 }
 155
 156 InstallVerifier* ShellExtensionSystem::install_verifier() {
 157   return NULL;
 158 }
 159
 160 QuotaService* ShellExtensionSystem::quota_service() {
 161   return quota_service_.get();
 162 }
 163
 164 void ShellExtensionSystem::RegisterExtensionWithRequestContexts(
 165     const Extension* extension) {
 166   BrowserThread::PostTask(
 167       BrowserThread::IO, FROM_HERE,
 168       base::Bind(&InfoMap::AddExtension, info_map(),
 169                  make_scoped_refptr(extension), base::Time::Now(),
 170                  false, false));
 171 }
 172
 173 void ShellExtensionSystem::UnregisterExtensionWithRequestContexts(
 174     const std::string& extension_id,
 175     const UnloadedExtensionInfo::Reason reason) {
 176 }
 177
 178 const OneShotEvent& ShellExtensionSystem::ready() const {
 179   return ready_;
 180 }
 181
 182 ContentVerifier* ShellExtensionSystem::content_verifier() {
 183   return NULL;
 184 }
 185
 186 scoped_ptr<ExtensionSet> ShellExtensionSystem::GetDependentExtensions(
 187     const Extension* extension) {
 188   scoped_ptr<ExtensionSet> empty(new ExtensionSet());
 189   return empty.PassAs<ExtensionSet>();
 190 }
 191
 192 }  // namespace extensions