src/plugin-loading/plugin_logic.cpp

   1 /*
   2  * Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
   3  *
   4  *    Licensed under the Apache License, Version 2.0 (the "License");
   5  *    you may not use this file except in compliance with the License.
   6  *    You may obtain a copy of the License at
   7  *
   8  *        http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  *    Unless required by applicable law or agreed to in writing, software
  11  *    distributed under the License is distributed on an "AS IS" BASIS,
  12  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  *    See the License for the specific language governing permissions and
  14  *    limitations under the License.
  15  */
  16 /**
  17  * @file        plugin_logic.cpp
  18  * @author      Piotr Fatyga (p.fatyga@samsung.com)
  19  * @author      Grzegorz Krawczyk (g.krawczyk@samsung.com)
  20  * @author      Przemyslaw Dobrowolski (p.dobrowolsk@samsung.com)
  21  * @version     1.0
  22  * @brief       This file is the implementation file of plugin and
  23  *              feature loading routines
  24  * @brief       This code is intended to work behind view controller
  25  */
  26
  27 #include "plugin_logic.h"
  28
  29 #include <dpl/assert.h>
  30 #include <dpl/scoped_array.h>
  31 #include <dpl/log/log.h>
  32 #include <dpl/foreach.h>
  33 #include <dpl/singleton_impl.h>
  34 #include <dpl/wrt-dao-ro/widget_dao_read_only.h>
  35 #include <dpl/wrt-dao-ro/common_dao_types.h>
  36 #include <dpl/wrt-dao-ro/global_config.h>
  37
  38 #include <JavaScriptCore/JavaScript.h>
  39
  40 #include <string>
  41 #include <sys/types.h>
  42 #include <sys/stat.h>
  43 #include <dirent.h>
  44 #include <errno.h>
  45 #include <fstream>
  46 #include <map>
  47 #include <list>
  48 #include <vector>
  49 #include <algorithm>
  50 #include <cstring>
  51
  52 #include <wrt_plugin_export.h>
  53 #include <js_overlay_types.h>
  54
  55 #include "explorer.h"
  56 #include "plugin.h"
  57 #include "plugin_model.h"
  58 #include "javascript_interface.h"
  59 #include "js_function_manager.h"
  60 #include "plugin_container_support.h"
  61
  62 #include "js_page_session.h"
  63
  64 using namespace std;
  65 using namespace WrtDB;
  66 using namespace WrtPlugins::W3C;
  67
  68 namespace {
  69 const char *LIBRARY_PATH_SEPARATOR = "/";
  70 const char* FEATURE_WAC20_DEVICAPIS_NAME = "http://wacapps.net/api/deviceapis";
  71 }
  72
  73 class PluginLogic::Impl
  74 {
  75     PluginContainerSupportPtr m_pluginsSupport;
  76
  77     typedef std::map<JSContextRef, JSPageSessionPtr> PagesSessionsSet;
  78     PagesSessionsSet m_sessions;
  79
  80
  81   public:
  82     Impl();
  83     ~Impl();
  84
  85     // Widget session
  86     void initSession(int widgetHandle);
  87     void startSession(int widgetHandle,
  88                       JSGlobalContextRef context,
  89                       double scaleFactor,
  90                       const char* encodedBundle,
  91                       const char* theme);
  92
  93     void stopSession(JSGlobalContextRef context);
  94
  95     void performLibrariesUnload();
  96
  97     bool loadPluginOnDemand(const WrtDB::DbPluginHandle &pluginHandle,
  98                             JavaScriptObject& parentObject,
  99                             JSGlobalContextRef context);
 100
 101     void loadFrame(JSGlobalContextRef context);
 102     void unloadFrame(JSGlobalContextRef context);
 103
 104     void setCustomProperties(JSGlobalContextRef ctx,
 105                              double scaleFactor,
 106                              const char* encodedBundle,
 107                              const char* theme);
 108
 109     void dispatchJavaScriptEvent(JSGlobalContextRef ctx,
 110                                  CustomEventType eventType,
 111                                  void* data);
 112
 113     static bool s_sanityCheck;
 114 };
 115
 116 IMPLEMENT_SINGLETON(PluginLogic);
 117
 118 bool PluginLogic::Impl::s_sanityCheck = false;
 119
 120 #define PLUGIN_LOGIC_SANITY_CHECK \
 121     if(!s_sanityCheck)\
 122     {\
 123         LogError("Object is not available. Wrong flow occured");\
 124         return;\
 125     }
 126
 127 PluginLogic::Impl::Impl()
 128 {
 129     s_sanityCheck = true;
 130
 131     DPL::Log::LogSystemSingleton::Instance().SetTag("WRT_PLUGINS");
 132     LogDebug("Initializing Plugin Logic...");
 133     m_pluginsSupport = PluginContainerSupportPtr(new PluginContainerSupport());
 134
 135     // explicit call to keep singleton's lifetime until calling destructor.
 136     JsFunctionManagerSingleton::Instance();
 137     JavaScriptInterfaceSingleton::Instance();
 138 }
 139
 140 PluginLogic::Impl::~Impl()
 141 {
 142     LogDebug("");
 143
 144     s_sanityCheck = false;
 145
 146     FOREACH(it, m_sessions)
 147     {
 148         LogError("Must stop widget session before exit!");
 149         it->second->stopSession();
 150     }
 151
 152     LogDebug("Deinitializing plugin Logic...");
 153 }
 154
 155 void PluginLogic::initSession(int widgetHandle)
 156 {
 157     m_impl->initSession(widgetHandle);
 158 }
 159
 160 void PluginLogic::startSession(int widgetHandle,
 161                                JSGlobalContextRef ctx,
 162                                double scaleFactor,
 163                                const char* encodedBundle,
 164                                const char* theme)
 165 {
 166     m_impl->startSession(widgetHandle, ctx, scaleFactor, encodedBundle, theme);
 167 }
 168
 169 void PluginLogic::stopSession(JSGlobalContextRef context)
 170 {
 171     m_impl->stopSession(context);
 172 }
 173
 174 void PluginLogic::performLibrariesUnload()
 175 {
 176     LogError("Libraries unload TURNED OFF");
 177 //    m_impl->performLibrariesUnload();
 178 }
 179
 180 bool PluginLogic::loadPluginOnDemand(
 181     const WrtDB::DbPluginHandle &pluginHandle,
 182     JavaScriptObject& parentObject,
 183     JSGlobalContextRef context)
 184 {
 185     return m_impl->loadPluginOnDemand(pluginHandle, parentObject, context);
 186 }
 187
 188 void PluginLogic::loadPluginsIntoIframes(JSGlobalContextRef context)
 189 {
 190     LogError("This function is Deprecated");
 191 }
 192
 193 void PluginLogic::setCustomProperties(double scaleFactor,
 194                                       const char* encodedBundle,
 195                                       const char* theme)
 196 {
 197     LogError("This function is DEPRECATED");
 198 }
 199
 200 void PluginLogic::setCustomProperties(JSGlobalContextRef context,
 201                                       double scaleFactor,
 202                                       const char* encodedBundle,
 203                                       const char* theme)
 204 {
 205     m_impl->setCustomProperties(context, scaleFactor, encodedBundle, theme);
 206 }
 207
 208 void PluginLogic::dispatchJavaScriptEvent(CustomEventType eventType)
 209 {
 210     LogError("This function is DEPRECATED");
 211 }
 212
 213 void PluginLogic::dispatchJavaScriptEvent(JSGlobalContextRef context,
 214                                           CustomEventType eventType,
 215                                           void *data)
 216 {
 217     m_impl->dispatchJavaScriptEvent(context, eventType, data);
 218 }
 219
 220 void PluginLogic::loadFrame(JSGlobalContextRef context)
 221 {
 222     m_impl->loadFrame(context);
 223 }
 224
 225 void PluginLogic::unloadFrame(JSGlobalContextRef context)
 226 {
 227     m_impl->unloadFrame(context);
 228 }
 229
 230 PluginLogic::PluginLogic() : m_impl(new PluginLogic::Impl())
 231 {
 232 }
 233
 234 PluginLogic::~PluginLogic()
 235 {
 236 }
 237
 238 void PluginLogic::Impl::initSession(int widgetHandle)
 239 {
 240     LogInfo("init pluginLogic...");
 241
 242     m_pluginsSupport->Initialize(widgetHandle);
 243
 244     //add standard objects
 245     LogDebug("Preload plugins so file");
 246
 247     PluginContainerSupport::PluginsList pluginList =
 248                                           m_pluginsSupport->getPluginsList();
 249
 250     FOREACH(it, pluginList)
 251     {
 252         PluginModelPtr& pluginModel = *it;
 253         PluginPtr pluginLib = pluginModel->LibraryInstance.Get();
 254
 255         if (!pluginLib)
 256         {
 257             std::string path = pluginModel->LibraryPath.Get() +
 258                                std::string(LIBRARY_PATH_SEPARATOR) +
 259                                pluginModel->LibraryName.Get();
 260
 261             pluginLib = Plugin::LoadFromFile(path);
 262
 263             if (!pluginLib)
 264             {
 265                 LogError("Loading library failed");
 266             } else
 267             {
 268                 pluginModel->LibraryInstance.Set(pluginLib);
 269
 270                 LogDebug("pluginModel->LibraryInstance.Set() : " << pluginLib->GetFileName());
 271             }
 272         }
 273         else
 274         {
 275             LogDebug("Already loaded");
 276         }
 277     }
 278
 279     LogDebug("Preload plugins so file_done");
 280 }
 281
 282 void PluginLogic::Impl::startSession(int widgetHandle,
 283                                      JSGlobalContextRef context,
 284                                      double scaleFactor,
 285                                      const char* encodedBundle,
 286                                      const char* theme)
 287 {
 288     LogInfo("Starting widget session...");
 289
 290     if (!m_pluginsSupport->isInitialized())
 291     {
 292         m_pluginsSupport->Initialize(widgetHandle);
 293     }
 294     auto sessionIt = m_sessions.find(context);
 295
 296     // Check if corresponding session if not already created
 297     if (sessionIt != m_sessions.end())
 298     {
 299         LogWarning("Session already started!");
 300         return;
 301     }
 302
 303     auto newSession = JSPageSessionPtr(new JSPageSession(m_pluginsSupport));
 304     newSession->startSession(widgetHandle,
 305                              context,
 306                              scaleFactor,
 307                              encodedBundle,
 308                              theme);
 309
 310     m_sessions[context] = newSession;
 311 }
 312
 313 void PluginLogic::Impl::stopSession(JSGlobalContextRef context)
 314 {
 315     LogInfo("Stopping widget session...");
 316
 317     auto sessionIt = m_sessions.find(context);
 318     if (sessionIt == m_sessions.end())
 319     {
 320         LogError("Session not exist!");
 321         return;
 322     }
 323
 324     sessionIt->second->stopSession();
 325     m_sessions.erase(sessionIt);
 326
 327     LogInfo("Widget session stopped.");
 328 }
 329
 330 bool PluginLogic::Impl::loadPluginOnDemand(
 331     const WrtDB::DbPluginHandle &pluginHandle,
 332     JavaScriptObject& parentObject,
 333     JSGlobalContextRef context
 334     )
 335 {
 336     LogInfo("Load plugin on demand");
 337
 338     auto sessionIt = m_sessions.find(context);
 339     if (sessionIt == m_sessions.end())
 340     {
 341         LogWarning("Session not exist!");
 342         return false;
 343     }
 344
 345     return sessionIt->second->loadPluginOnDemand(pluginHandle,
 346                                                  parentObject,
 347                                                  context);
 348 }
 349
 350 void PluginLogic::Impl::loadFrame(JSGlobalContextRef context)
 351 {
 352     LogDebug("Load a frame");
 353
 354     PLUGIN_LOGIC_SANITY_CHECK
 355
 356     auto sessionIt = m_sessions.find(context);
 357     if (sessionIt == m_sessions.end())
 358     {
 359         LogWarning("Session not exist!");
 360         return;
 361     }
 362
 363     sessionIt->second->loadFrame(context);
 364 }
 365
 366 void PluginLogic::Impl::unloadFrame(JSGlobalContextRef context)
 367 {
 368     LogDebug("Unload a frame");
 369
 370     PLUGIN_LOGIC_SANITY_CHECK
 371
 372     auto sessionIt = m_sessions.find(context);
 373     if (sessionIt == m_sessions.end())
 374     {
 375         LogWarning("Session not exist!");
 376         return;
 377     }
 378
 379     sessionIt->second->unloadFrame(context);
 380     m_sessions.erase(sessionIt);
 381 }
 382
 383 void PluginLogic::Impl::setCustomProperties(JSGlobalContextRef context,
 384                                             double scaleFactor,
 385                                             const char* encodedBundle,
 386                                             const char* theme)
 387 {
 388     LogInfo("set properties of window object " << scaleFactor << ", "
 389             << encodedBundle << ", " << theme);
 390
 391     PLUGIN_LOGIC_SANITY_CHECK
 392
 393     auto sessionIt = m_sessions.find(context);
 394     if (sessionIt == m_sessions.end())
 395     {
 396         LogWarning("Session not exist!");
 397         return;
 398     }
 399
 400     sessionIt->second->setCustomProperties(scaleFactor,
 401                                            encodedBundle,
 402                                            theme);
 403
 404 }
 405
 406 void PluginLogic::Impl::dispatchJavaScriptEvent(JSGlobalContextRef context,
 407                                                 CustomEventType eventType,
 408                                                 void* data)
 409 {
 410     LogDebug("Dispatch event");
 411
 412     PLUGIN_LOGIC_SANITY_CHECK
 413
 414     auto sessionIt = m_sessions.find(context);
 415     if (sessionIt == m_sessions.end())
 416     {
 417         LogWarning("Session not exist!");
 418         return;
 419     }
 420
 421     sessionIt->second->dispatchJavaScriptEvent(eventType, data);
 422
 423
 424 }