src/app/FApp_ActiveWindowManager.cpp

   1 //
   2 // Copyright (c) 2012 Samsung Electronics Co., Ltd.
   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 /**
  18  * @file         FApp_ActiveWindowManager.cpp
  19  * @brief       This is the implementation for the _ActiveWindowManager.cpp class.
  20  */
  21
  22 #include <unique_ptr.h>
  23
  24 #include <aul/aul.h>
  25 #include <Ecore.h>
  26 #include <Ecore_X.h>
  27 #include <X11/Xlib.h>
  28
  29 #include <FBaseSysLog.h>
  30 #include <FAppIActiveAppEventListener.h>
  31
  32 #include <FBaseRt_LibraryImpl.h>
  33
  34 #include "FApp_Aul.h"
  35 #include "FApp_ActiveWindowManager.h"
  36
  37 using namespace Tizen::Base;
  38 using namespace Tizen::Base::Collection;
  39 //using namespace Tizen::Base::Utility;
  40 using namespace Tizen::Base::Runtime;
  41
  42 namespace
  43 {
  44
  45 const wchar_t OSP_ECORE_X_SONAME[] = L"libecore_x.so.1";
  46 const wchar_t OSP_ECORE_SONAME[] = L"libecore.so.1";
  47 const wchar_t OSP_X11_SONAME[] = L"libX11.so.6";
  48
  49 // ActiveWindow related function and variable from shared library.
  50 // libecore_x.so.1
  51 static Ecore_X_Atom(* p_ecore_x_atom_get)(const char* name) = null;
  52 static int(* p_ecore_x_window_prop_window_get)(Ecore_X_Window win, Ecore_X_Atom atom, Ecore_X_Window* val, unsigned int len) = null;
  53 static Eina_Bool(* p_ecore_x_netwm_pid_get)(Ecore_X_Window win, int* pid) = null;
  54 static int(* p_ecore_x_netwm_name_get)(Ecore_X_Window win, char** name) = null;
  55 static Ecore_X_Window* (* p_ecore_x_window_root_list)(int* num_ret) = null;
  56 static int* p_ECORE_X_EVENT_WINDOW_PROPERTY = null;
  57 // libecore.so.1
  58 static Ecore_Event_Handler* (* p_ecore_event_handler_add)(int type, Ecore_Event_Handler_Cb func, const void* data) = null;
  59 static void* (* p_ecore_event_handler_del)(Ecore_Event_Handler* event_handler) = null;
  60 // libX11.so
  61 static int (* p_XSelectInput)(Display* display, Window w, long event_mask) = null;
  62 static Display* (* p_XOpenDisplay)(_Xconst char* display_name) = null;
  63 static int (* p_XCloseDisplay)(Display* display) = null;
  64
  65 static Ecore_Event_Handler* pWindowPropertyChanged = null;
  66
  67 struct _DisplayDeleter
  68 {
  69         void operator()(Display* pDisplay)
  70         {
  71                 if (p_XOpenDisplay)
  72                 {
  73                         p_XCloseDisplay(pDisplay);
  74                 }
  75         }
  76 };
  77
  78 } // anonymous name-space
  79
  80
  81 namespace Tizen { namespace App
  82 {
  83
  84 _ActiveWindowManager::_ActiveWindowManager(void)
  85         : __pX11Library(null)
  86         , __pEcoreXLibrary(null)
  87         , __pEcoreLibrary(null)
  88 {
  89 }
  90
  91 _ActiveWindowManager::~_ActiveWindowManager(void)
  92 {
  93         if (__activeAppEventListenerList.GetCount() > 0)
  94         {
  95                 if (p_ecore_event_handler_del == null)
  96                 {
  97                         _LibraryImpl& lib = GetEcoreLibraryImpl();
  98                         p_ecore_event_handler_del = reinterpret_cast<void*(*)(Ecore_Event_Handler* event_handler)>(lib.GetProcAddress(L"ecore_event_handler_del"));
  99                 }
 100                 if (p_ecore_event_handler_del)
 101                 {
 102                         if (pWindowPropertyChanged)
 103                         {
 104                                 p_ecore_event_handler_del(pWindowPropertyChanged);
 105                                 pWindowPropertyChanged = null;
 106                         }
 107                 }
 108         }
 109
 110         delete __pX11Library;
 111         delete __pEcoreXLibrary;
 112         __pEcoreXLibrary = null;
 113         delete __pEcoreLibrary;
 114         __pEcoreLibrary = null;
 115 }
 116
 117 Eina_Bool
 118 _ActiveWindowManager::OnPropertyChanged(void* pData, int type, void* pEvent)
 119 {
 120         if (!pData)
 121         {
 122                 SysLog(NID_UI, "The data is not valid.");
 123                 return EINA_FALSE;
 124         }
 125
 126         _ActiveWindowManager* pThis = static_cast<_ActiveWindowManager*>(pData);
 127
 128         if (p_ecore_x_atom_get == null)
 129         {
 130                 _LibraryImpl& lib = pThis->GetEcoreXLibraryImpl();
 131                 p_ecore_x_atom_get = reinterpret_cast<Ecore_X_Atom(*)(const char* name)>(lib.GetProcAddress(L"ecore_x_atom_get"));
 132                 SysTryReturnResult(NID_APP, p_ecore_x_atom_get != null, EINA_FALSE,
 133                                 "A system error has been occurred. Failed to get ecore_x_atom_get.");
 134         }
 135         if (p_ecore_x_window_prop_window_get == null)
 136         {
 137                 _LibraryImpl& lib = pThis->GetEcoreXLibraryImpl();
 138                 p_ecore_x_window_prop_window_get = reinterpret_cast<int(*)(Ecore_X_Window win, Ecore_X_Atom atom, Ecore_X_Window* val, unsigned int len)>(lib.GetProcAddress(L"ecore_x_window_prop_window_get"));
 139                 SysTryReturnResult(NID_APP, p_ecore_x_window_prop_window_get != null, EINA_FALSE,
 140                                 "A system error has been occurred. Failed to get ecore_x_window_prop_window_get.");
 141         }
 142         if (p_ecore_x_netwm_pid_get == null)
 143         {
 144                 _LibraryImpl& lib = pThis->GetEcoreXLibraryImpl();
 145                 p_ecore_x_netwm_pid_get = reinterpret_cast<Eina_Bool(*)(Ecore_X_Window win, int* pid)>(lib.GetProcAddress(L"ecore_x_netwm_pid_get"));
 146                 SysTryReturnResult(NID_APP, p_ecore_x_netwm_pid_get != null, EINA_FALSE,
 147                                 "A system error has been occurred. Failed to get ecore_x_netwm_pid_get.");
 148         }
 149         if (p_ecore_x_netwm_name_get == null)
 150         {
 151                 _LibraryImpl& lib = pThis->GetEcoreXLibraryImpl();
 152                 p_ecore_x_netwm_name_get = reinterpret_cast<int(*)(Ecore_X_Window win, char** name)>(lib.GetProcAddress(L"ecore_x_netwm_name_get"));
 153                 SysTryReturnResult(NID_APP, p_ecore_x_netwm_name_get != null, EINA_FALSE,
 154                                 "A system error has been occurred. Failed to get ecore_x_netwm_name_get.");
 155         }
 156
 157         if (!pEvent)
 158         {
 159                 SysLog(NID_UI, "The event is not valid.");
 160                 return EINA_FALSE;
 161         }
 162
 163         Ecore_X_Event_Window_Property* pE = (Ecore_X_Event_Window_Property*) pEvent;
 164         Ecore_X_Atom atom = pE->atom;
 165         Ecore_X_Atom activeAtom = p_ecore_x_atom_get("_NET_ACTIVE_WINDOW");
 166
 167         if (atom != activeAtom)
 168         {
 169                 return ECORE_CALLBACK_PASS_ON;
 170         }
 171
 172         Ecore_X_Window win = pE->win;
 173         Ecore_X_Window activeWin = 0;
 174         p_ecore_x_window_prop_window_get(win, activeAtom, &activeWin, 1);
 175
 176         int pid = 0;
 177         p_ecore_x_netwm_pid_get(activeWin, &pid);
 178
 179         char* pAppName = null;
 180         p_ecore_x_netwm_name_get(activeWin, &pAppName);
 181
 182         pThis->FireActiveAppEvent(activeWin, pid, pAppName);
 183
 184         if (pAppName)
 185         {
 186                 free(pAppName);
 187         }
 188
 189         return ECORE_CALLBACK_PASS_ON;
 190 }
 191
 192 result
 193 _ActiveWindowManager::AddActiveAppEventListener(IActiveAppEventListener& listener)
 194 {
 195         if (p_ecore_x_window_root_list == null)
 196         {
 197                 _LibraryImpl& lib = GetEcoreXLibraryImpl();
 198                 p_ecore_x_window_root_list = reinterpret_cast<Ecore_X_Window*(*)(int* num_ret)>(lib.GetProcAddress(L"ecore_x_window_root_list"));
 199                 SysTryReturnResult(NID_APP, p_ecore_x_window_root_list != null, E_SYSTEM,
 200                                 "A system error has been occurred. Failed to get p_ecore_x_window_root_list.");
 201         }
 202         if (p_ECORE_X_EVENT_WINDOW_PROPERTY == null)
 203         {
 204                 _LibraryImpl& lib = GetEcoreXLibraryImpl();
 205                 p_ECORE_X_EVENT_WINDOW_PROPERTY = reinterpret_cast<int*>(lib.GetProcAddress(L"ECORE_X_EVENT_WINDOW_PROPERTY"));
 206                 SysTryReturnResult(NID_APP, p_ECORE_X_EVENT_WINDOW_PROPERTY != null, E_SYSTEM,
 207                                 "A system error has been occurred. Failed to get p_ECORE_X_EVENT_WINDOW_PROPERTY.");
 208         }
 209         if (p_XOpenDisplay == null)
 210         {
 211                 _LibraryImpl& lib = GetX11LibraryImpl();
 212                 p_XOpenDisplay = reinterpret_cast<Display*(*)(_Xconst char* display_name)>(lib.GetProcAddress(L"XOpenDisplay"));
 213                 SysTryReturnResult(NID_APP, p_XOpenDisplay != null, E_SYSTEM,
 214                                 "A system error has been occurred. Failed to get p_XOpenDisplay.");
 215         }
 216         if (p_XCloseDisplay == null)
 217         {
 218                 _LibraryImpl& lib = GetX11LibraryImpl();
 219                 p_XCloseDisplay = reinterpret_cast<int(*)(Display* display)>(lib.GetProcAddress(L"XCloseDisplay"));
 220                 SysTryReturnResult(NID_APP, p_XCloseDisplay != null, E_SYSTEM,
 221                                 "A system error has been occurred. Failed to get p_XCloseDisplay.");
 222         }
 223         if (p_XSelectInput == null)
 224         {
 225                 _LibraryImpl& lib = GetX11LibraryImpl();
 226                 p_XSelectInput = reinterpret_cast<int(*)(Display* display, Window w, long event_mask)>(lib.GetProcAddress(L"XSelectInput"));
 227                 SysTryReturnResult(NID_APP, p_XSelectInput != null, E_SYSTEM,
 228                                 "A system error has been occurred. Failed to get p_XSelectInput.");
 229         }
 230
 231         if (p_ecore_event_handler_add == null)
 232         {
 233                 _LibraryImpl& lib = GetEcoreLibraryImpl();
 234                 p_ecore_event_handler_add = reinterpret_cast<Ecore_Event_Handler*(*)(int type, Ecore_Event_Handler_Cb func, const void* data)>(lib.GetProcAddress(L"ecore_event_handler_add"));
 235                 SysTryReturnResult(NID_APP, p_ecore_event_handler_add != null, E_SYSTEM,
 236                                 "A system error has been occurred. Failed to get p_ecore_event_handler_add.");
 237         }
 238
 239         bool alreadyExist = __activeAppEventListenerList.Contains(&listener);
 240         SysTryReturnResult(NID_APP, !alreadyExist, E_OBJ_ALREADY_EXIST, "The event listener already exist.");
 241         result r = __activeAppEventListenerList.Add(&listener);
 242         SysTryReturn(NID_APP, !IsFailed(r), r, r, "[%s] Propagating.", GetErrorMessage(r));
 243
 244         if (!pWindowPropertyChanged)
 245         {
 246                 std::unique_ptr<Display, _DisplayDeleter> pDisplay(p_XOpenDisplay(NULL));
 247                 SysTryReturnResult(NID_APP, pDisplay != null, E_SYSTEM, "A system error has been occurred. Failed to XOpenDisplay.");
 248
 249                 int num = 0;
 250                 Ecore_X_Window* pRoots = p_ecore_x_window_root_list(&num);
 251                 SysTryReturnResult(NID_APP, pRoots != null, E_OUT_OF_MEMORY, "Memory allocation failed.");
 252
 253                 for (int i = 0; i < num; i++)
 254                 {
 255                         p_XSelectInput(pDisplay.get(), pRoots[i], PropertyChangeMask);
 256                 }
 257
 258                 pWindowPropertyChanged = p_ecore_event_handler_add(*p_ECORE_X_EVENT_WINDOW_PROPERTY, OnPropertyChanged, (void*) this);
 259                 free(pRoots);
 260                 SysTryReturnResult(NID_APP, pWindowPropertyChanged, E_SYSTEM, "A system error has been occurred.");
 261         }
 262
 263         return r;
 264 }
 265
 266 result
 267 _ActiveWindowManager::RemoveActiveAppEventListener(IActiveAppEventListener& listener)
 268 {
 269         if (p_ecore_event_handler_del == null)
 270         {
 271                 _LibraryImpl& lib = GetEcoreLibraryImpl();
 272                 p_ecore_event_handler_del = reinterpret_cast<void*(*)(Ecore_Event_Handler* event_handler)>(lib.GetProcAddress(L"ecore_event_handler_del"));
 273                 SysTryReturnResult(NID_APP, p_ecore_event_handler_del != null, E_SYSTEM,
 274                                 "A system error has been occurred. Failed to get p_ecore_event_handler_del.");
 275         }
 276
 277         result r = __activeAppEventListenerList.Remove(&listener);
 278         SysTryReturn(NID_APP, !IsFailed(r), r, r, "[%s] Propagating.", GetErrorMessage(r));
 279
 280         if (__activeAppEventListenerList.GetCount() == 0)
 281         {
 282                 p_ecore_event_handler_del(pWindowPropertyChanged);
 283                 pWindowPropertyChanged = null;
 284         }
 285
 286         return r;
 287 }
 288
 289
 290 void
 291 _ActiveWindowManager::FireActiveAppEvent(unsigned int xid, int pid, const char* pAppName)
 292 {
 293         static int oldPid = 0;
 294         if (oldPid != pid)
 295         {
 296                 oldPid = pid;
 297                 char pkgname[255] = {0, };
 298                 if ((AUL_R_OK != aul_app_get_pkgname_bypid(pid, pkgname, 255)) || pkgname[0] == 0)
 299                 {
 300                         SysSecureLog(NID_APP, "Failed to get the package name from pid=%x pAppName=%s", pid, pAppName ? pAppName : "null");
 301                         return;
 302                 }
 303                 AppId appId(_Aul::GetRealAppId(String(pkgname)));
 304
 305                 std::unique_ptr<IEnumeratorT<Tizen::App::IActiveAppEventListener* > > pEnum(__activeAppEventListenerList.GetEnumeratorN());
 306                 if (pEnum.get())
 307                 {
 308                         while (pEnum->MoveNext() == E_SUCCESS)
 309                         {
 310                                 Tizen::App::IActiveAppEventListener* pListener = null;
 311                                 pEnum->GetCurrent(pListener);
 312                                 if (pListener)
 313                                 {
 314                                         pListener->OnActiveAppChanged(appId);
 315                                 }
 316                         }
 317                 }
 318         }
 319 }
 320
 321
 322 result
 323 _ActiveWindowManager::GetActiveApp(AppId& appId)
 324 {
 325         const unsigned int windowId = GetActiveWindow();
 326         const int processId = GetProcessId(windowId);
 327         char pkgname[255] = {0, };
 328         if (aul_app_get_pkgname_bypid(processId, pkgname, 255) != AUL_R_OK)
 329         {
 330                 SysSecureLog(NID_APP, "Failed to get the package name from pid=%x appId=%ls", processId, appId.GetPointer());
 331                 return E_SYSTEM;
 332         }
 333
 334         appId = _Aul::GetRealAppId(String(pkgname));
 335
 336         SysLog(NID_APP, "ActiveApp is %ls.", appId.GetPointer());
 337         return E_SUCCESS;
 338 }
 339
 340 _LibraryImpl&
 341 _ActiveWindowManager::GetEcoreXLibraryImpl(void)
 342 {
 343         if (__pEcoreXLibrary == null)
 344         {
 345                 __pEcoreXLibrary = new (std::nothrow) _LibraryImpl;
 346                 SysAssertf(__pEcoreXLibrary != null, "_LibraryImpl allocation failure.");
 347
 348                 result r = __pEcoreXLibrary->Construct(OSP_ECORE_X_SONAME);
 349                 SysAssertf(r == E_SUCCESS, "Dynamic loading error : %s.", GetErrorMessage(r));
 350         }
 351         return *__pEcoreXLibrary;
 352 }
 353
 354 _LibraryImpl&
 355 _ActiveWindowManager::GetEcoreLibraryImpl(void)
 356 {
 357         if (__pEcoreLibrary == null)
 358         {
 359                 __pEcoreLibrary = new (std::nothrow) _LibraryImpl;
 360                 SysAssertf(__pEcoreLibrary != null, "_LibraryImpl allocation failure.");
 361
 362                 result r = __pEcoreLibrary->Construct(OSP_ECORE_SONAME);
 363                 SysAssertf(r == E_SUCCESS, "Dynamic loading error : %s.", GetErrorMessage(r));
 364         }
 365         return *__pEcoreLibrary;
 366 }
 367
 368 _LibraryImpl&
 369 _ActiveWindowManager::GetX11LibraryImpl(void)
 370 {
 371         if (__pX11Library == null)
 372         {
 373                 __pX11Library = new (std::nothrow) _LibraryImpl;
 374                 SysAssertf(__pX11Library != null, "_LibraryImpl allocation failure.");
 375
 376                 result r = __pX11Library->Construct(OSP_X11_SONAME);
 377                 SysAssertf(r == E_SUCCESS, "Dynamic loading error : %s.", GetErrorMessage(r));
 378         }
 379         return *__pX11Library;
 380 }
 381
 382 unsigned int
 383 _ActiveWindowManager::GetActiveWindow(void)
 384 {
 385         if (p_ecore_x_window_root_list == null)
 386         {
 387                 _LibraryImpl& lib = GetEcoreXLibraryImpl();
 388                 p_ecore_x_window_root_list = reinterpret_cast<Ecore_X_Window*(*)(int* num_ret)>(lib.GetProcAddress(L"ecore_x_window_root_list"));
 389                 SysTryReturnResult(NID_APP, p_ecore_x_window_root_list != null, 0,
 390                                 "A system error has been occurred. Failed to get p_ecore_x_window_root_list.");
 391         }
 392         if (p_ecore_x_atom_get == null)
 393         {
 394                 _LibraryImpl& lib = GetEcoreXLibraryImpl();
 395                 p_ecore_x_atom_get = reinterpret_cast<Ecore_X_Atom(*)(const char* name)>(lib.GetProcAddress(L"ecore_x_atom_get"));
 396                 SysTryReturnResult(NID_APP, p_ecore_x_atom_get != null, 0,
 397                                 "A system error has been occurred. Failed to get ecore_x_atom_get.");
 398         }
 399         if (p_ecore_x_window_prop_window_get == null)
 400         {
 401                 _LibraryImpl& lib = GetEcoreXLibraryImpl();
 402                 p_ecore_x_window_prop_window_get = reinterpret_cast<int(*)(Ecore_X_Window win, Ecore_X_Atom atom, Ecore_X_Window* val, unsigned int len)>(lib.GetProcAddress(L"ecore_x_window_prop_window_get"));
 403                 SysTryReturnResult(NID_APP, p_ecore_x_window_prop_window_get != null, EINA_FALSE,
 404                                 "A system error has been occurred. Failed to get ecore_x_window_prop_window_get.");
 405         }
 406
 407         int num = 0;
 408         Ecore_X_Window* pRoots = p_ecore_x_window_root_list(&num);
 409
 410         Ecore_X_Window activeWin = 0;
 411         if (pRoots)
 412         {
 413                 Ecore_X_Atom activeAtom = p_ecore_x_atom_get("_NET_ACTIVE_WINDOW");
 414                 p_ecore_x_window_prop_window_get(pRoots[0], activeAtom, &activeWin, 1);
 415                 free(pRoots);
 416         }
 417
 418         return activeWin;
 419 }
 420
 421 int
 422 _ActiveWindowManager::GetProcessId(unsigned int window)
 423 {
 424         if (p_ecore_x_netwm_pid_get == null)
 425         {
 426                 _LibraryImpl& lib = GetEcoreXLibraryImpl();
 427                 p_ecore_x_netwm_pid_get = reinterpret_cast<Eina_Bool(*)(Ecore_X_Window win, int* pid)>(lib.GetProcAddress(L"ecore_x_netwm_pid_get"));
 428                 SysTryReturnResult(NID_APP, p_ecore_x_netwm_pid_get != null, EINA_FALSE,
 429                                 "A system error has been occurred. Failed to get ecore_x_netwm_pid_get.");
 430         }
 431
 432         int pid = 0;
 433         p_ecore_x_netwm_pid_get(window, &pid);
 434
 435         return pid;
 436 }
 437
 438 }} // Tizen::App