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::Runtime;
  40
  41 namespace
  42 {
  43
  44 const wchar_t OSP_ECORE_X_SONAME[] = L"libecore_x.so.1";
  45 const wchar_t OSP_ECORE_SONAME[] = L"libecore.so.1";
  46 const wchar_t OSP_X11_SONAME[] = L"libX11.so.6";
  47
  48 // ActiveWindow related function and variable from shared library.
  49 // libecore_x.so.1
  50 static Ecore_X_Atom(* p_ecore_x_atom_get)(const char* name) = null;
  51 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;
  52 static Eina_Bool(* p_ecore_x_netwm_pid_get)(Ecore_X_Window win, int* pid) = null;
  53 static int(* p_ecore_x_netwm_name_get)(Ecore_X_Window win, char** name) = null;
  54 static Ecore_X_Window* (* p_ecore_x_window_root_list)(int* num_ret) = null;
  55 static int* p_ECORE_X_EVENT_WINDOW_PROPERTY = null;
  56 // libecore.so.1
  57 static Ecore_Event_Handler* (* p_ecore_event_handler_add)(int type, Ecore_Event_Handler_Cb func, const void* data) = null;
  58 static void* (* p_ecore_event_handler_del)(Ecore_Event_Handler* event_handler) = null;
  59 // libX11.so
  60 static int (* p_XSelectInput)(Display* display, Window w, long event_mask) = null;
  61 static Display* (* p_XOpenDisplay)(_Xconst char* display_name) = null;
  62 static int (* p_XCloseDisplay)(Display* display) = null;
  63
  64 static Ecore_Event_Handler* pWindowPropertyChanged = null;
  65
  66 struct _DisplayDeleter
  67 {
  68         void operator()(Display* pDisplay)
  69         {
  70                 if (p_XOpenDisplay)
  71                 {
  72                         p_XCloseDisplay(pDisplay);
  73                 }
  74         }
  75 };
  76
  77 } // anonymous name-space
  78
  79
  80 namespace Tizen { namespace App
  81 {
  82
  83 _ActiveWindowManager::_ActiveWindowManager(void)
  84         : __pX11Library(null)
  85         , __pEcoreXLibrary(null)
  86         , __pEcoreLibrary(null)
  87 {
  88 }
  89
  90 _ActiveWindowManager::~_ActiveWindowManager(void)
  91 {
  92         if (__activeAppEventListenerList.GetCount() > 0)
  93         {
  94                 if (p_ecore_event_handler_del == null)
  95                 {
  96                         _LibraryImpl& lib = GetEcoreLibraryImpl();
  97                         p_ecore_event_handler_del = reinterpret_cast<void*(*)(Ecore_Event_Handler* event_handler)>(lib.GetProcAddress(L"ecore_event_handler_del"));
  98                 }
  99                 if (p_ecore_event_handler_del)
 100                 {
 101                         if (pWindowPropertyChanged)
 102                         {
 103                                 p_ecore_event_handler_del(pWindowPropertyChanged);
 104                                 pWindowPropertyChanged = null;
 105                         }
 106                 }
 107         }
 108
 109         delete __pX11Library;
 110         delete __pEcoreXLibrary;
 111         __pEcoreXLibrary = null;
 112         delete __pEcoreLibrary;
 113         __pEcoreLibrary = null;
 114 }
 115
 116 Eina_Bool
 117 _ActiveWindowManager::OnPropertyChanged(void* pData, int type, void* pEvent)
 118 {
 119         if (!pData)
 120         {
 121                 SysLog(NID_UI, "The data is not valid.");
 122                 return EINA_FALSE;
 123         }
 124
 125         _ActiveWindowManager* pThis = static_cast<_ActiveWindowManager*>(pData);
 126
 127         if (p_ecore_x_atom_get == null)
 128         {
 129                 _LibraryImpl& lib = pThis->GetEcoreXLibraryImpl();
 130                 p_ecore_x_atom_get = reinterpret_cast<Ecore_X_Atom(*)(const char* name)>(lib.GetProcAddress(L"ecore_x_atom_get"));
 131                 SysTryReturnResult(NID_APP, p_ecore_x_atom_get != null, EINA_FALSE,
 132                                 "A system error has been occurred. Failed to get ecore_x_atom_get.");
 133         }
 134         if (p_ecore_x_window_prop_window_get == null)
 135         {
 136                 _LibraryImpl& lib = pThis->GetEcoreXLibraryImpl();
 137                 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"));
 138                 SysTryReturnResult(NID_APP, p_ecore_x_window_prop_window_get != null, EINA_FALSE,
 139                                 "A system error has been occurred. Failed to get ecore_x_window_prop_window_get.");
 140         }
 141         if (p_ecore_x_netwm_pid_get == null)
 142         {
 143                 _LibraryImpl& lib = pThis->GetEcoreXLibraryImpl();
 144                 p_ecore_x_netwm_pid_get = reinterpret_cast<Eina_Bool(*)(Ecore_X_Window win, int* pid)>(lib.GetProcAddress(L"ecore_x_netwm_pid_get"));
 145                 SysTryReturnResult(NID_APP, p_ecore_x_netwm_pid_get != null, EINA_FALSE,
 146                                 "A system error has been occurred. Failed to get ecore_x_netwm_pid_get.");
 147         }
 148         if (p_ecore_x_netwm_name_get == null)
 149         {
 150                 _LibraryImpl& lib = pThis->GetEcoreXLibraryImpl();
 151                 p_ecore_x_netwm_name_get = reinterpret_cast<int(*)(Ecore_X_Window win, char** name)>(lib.GetProcAddress(L"ecore_x_netwm_name_get"));
 152                 SysTryReturnResult(NID_APP, p_ecore_x_netwm_name_get != null, EINA_FALSE,
 153                                 "A system error has been occurred. Failed to get ecore_x_netwm_name_get.");
 154         }
 155
 156         if (!pEvent)
 157         {
 158                 SysLog(NID_UI, "The event is not valid.");
 159                 return EINA_FALSE;
 160         }
 161
 162         Ecore_X_Event_Window_Property* pE = (Ecore_X_Event_Window_Property*) pEvent;
 163         Ecore_X_Atom atom = pE->atom;
 164         Ecore_X_Atom activeAtom = p_ecore_x_atom_get("_NET_ACTIVE_WINDOW");
 165
 166         if (atom != activeAtom)
 167         {
 168                 return ECORE_CALLBACK_PASS_ON;
 169         }
 170
 171         Ecore_X_Window win = pE->win;
 172         Ecore_X_Window activeWin = 0;
 173         p_ecore_x_window_prop_window_get(win, activeAtom, &activeWin, 1);
 174
 175         int pid = 0;
 176         p_ecore_x_netwm_pid_get(activeWin, &pid);
 177
 178         char* pAppName = null;
 179         p_ecore_x_netwm_name_get(activeWin, &pAppName);
 180
 181         pThis->FireActiveAppEvent(activeWin, pid, pAppName);
 182
 183         if (pAppName)
 184         {
 185                 free(pAppName);
 186         }
 187
 188         return ECORE_CALLBACK_PASS_ON;
 189 }
 190
 191 result
 192 _ActiveWindowManager::AddActiveAppEventListener(IActiveAppEventListener& listener)
 193 {
 194         if (p_ecore_x_window_root_list == null)
 195         {
 196                 _LibraryImpl& lib = GetEcoreXLibraryImpl();
 197                 p_ecore_x_window_root_list = reinterpret_cast<Ecore_X_Window*(*)(int* num_ret)>(lib.GetProcAddress(L"ecore_x_window_root_list"));
 198                 SysTryReturnResult(NID_APP, p_ecore_x_window_root_list != null, E_SYSTEM,
 199                                 "A system error has been occurred. Failed to get p_ecore_x_window_root_list.");
 200         }
 201         if (p_ECORE_X_EVENT_WINDOW_PROPERTY == null)
 202         {
 203                 _LibraryImpl& lib = GetEcoreXLibraryImpl();
 204                 p_ECORE_X_EVENT_WINDOW_PROPERTY = reinterpret_cast<int*>(lib.GetProcAddress(L"ECORE_X_EVENT_WINDOW_PROPERTY"));
 205                 SysTryReturnResult(NID_APP, p_ECORE_X_EVENT_WINDOW_PROPERTY != null, E_SYSTEM,
 206                                 "A system error has been occurred. Failed to get p_ECORE_X_EVENT_WINDOW_PROPERTY.");
 207         }
 208         if (p_XOpenDisplay == null)
 209         {
 210                 _LibraryImpl& lib = GetX11LibraryImpl();
 211                 p_XOpenDisplay = reinterpret_cast<Display*(*)(_Xconst char* display_name)>(lib.GetProcAddress(L"XOpenDisplay"));
 212                 SysTryReturnResult(NID_APP, p_XOpenDisplay != null, E_SYSTEM,
 213                                 "A system error has been occurred. Failed to get p_XOpenDisplay.");
 214         }
 215         if (p_XCloseDisplay == null)
 216         {
 217                 _LibraryImpl& lib = GetX11LibraryImpl();
 218                 p_XCloseDisplay = reinterpret_cast<int(*)(Display* display)>(lib.GetProcAddress(L"XCloseDisplay"));
 219                 SysTryReturnResult(NID_APP, p_XCloseDisplay != null, E_SYSTEM,
 220                                 "A system error has been occurred. Failed to get p_XCloseDisplay.");
 221         }
 222         if (p_XSelectInput == null)
 223         {
 224                 _LibraryImpl& lib = GetX11LibraryImpl();
 225                 p_XSelectInput = reinterpret_cast<int(*)(Display* display, Window w, long event_mask)>(lib.GetProcAddress(L"XSelectInput"));
 226                 SysTryReturnResult(NID_APP, p_XSelectInput != null, E_SYSTEM,
 227                                 "A system error has been occurred. Failed to get p_XSelectInput.");
 228         }
 229
 230         if (p_ecore_event_handler_add == null)
 231         {
 232                 _LibraryImpl& lib = GetEcoreLibraryImpl();
 233                 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"));
 234                 SysTryReturnResult(NID_APP, p_ecore_event_handler_add != null, E_SYSTEM,
 235                                 "A system error has been occurred. Failed to get p_ecore_event_handler_add.");
 236         }
 237
 238         bool alreadyExist = __activeAppEventListenerList.Contains(&listener);
 239         SysTryReturnResult(NID_APP, !alreadyExist, E_OBJ_ALREADY_EXIST, "The event listener already exist.");
 240         result r = __activeAppEventListenerList.Add(&listener);
 241         if (IsFailed(r))
 242         {
 243                 SysPropagate(NID_APP, r);
 244                 return r;
 245         }
 246
 247         if (!pWindowPropertyChanged)
 248         {
 249                 std::unique_ptr<Display, _DisplayDeleter> pDisplay(p_XOpenDisplay(NULL));
 250                 SysTryReturnResult(NID_APP, pDisplay != null, E_SYSTEM, "A system error has been occurred. Failed to XOpenDisplay.");
 251
 252                 int num = 0;
 253                 Ecore_X_Window* pRoots = p_ecore_x_window_root_list(&num);
 254                 SysTryReturnResult(NID_APP, pRoots != null, E_OUT_OF_MEMORY, "Memory allocation failed.");
 255
 256                 for (int i = 0; i < num; i++)
 257                 {
 258                         p_XSelectInput(pDisplay.get(), pRoots[i], PropertyChangeMask);
 259                 }
 260
 261                 pWindowPropertyChanged = p_ecore_event_handler_add(*p_ECORE_X_EVENT_WINDOW_PROPERTY, OnPropertyChanged, (void*) this);
 262                 free(pRoots);
 263                 SysTryReturnResult(NID_APP, pWindowPropertyChanged, E_SYSTEM, "A system error has been occurred.");
 264         }
 265
 266         return r;
 267 }
 268
 269 result
 270 _ActiveWindowManager::RemoveActiveAppEventListener(IActiveAppEventListener& listener)
 271 {
 272         if (p_ecore_event_handler_del == null)
 273         {
 274                 _LibraryImpl& lib = GetEcoreLibraryImpl();
 275                 p_ecore_event_handler_del = reinterpret_cast<void*(*)(Ecore_Event_Handler* event_handler)>(lib.GetProcAddress(L"ecore_event_handler_del"));
 276                 SysTryReturnResult(NID_APP, p_ecore_event_handler_del != null, E_SYSTEM,
 277                                 "A system error has been occurred. Failed to get p_ecore_event_handler_del.");
 278         }
 279
 280         result r = __activeAppEventListenerList.Remove(&listener);
 281         if (IsFailed(r))
 282         {
 283                 SysPropagate(NID_APP, r);
 284                 return r;
 285         }
 286
 287         if (__activeAppEventListenerList.GetCount() == 0)
 288         {
 289                 p_ecore_event_handler_del(pWindowPropertyChanged);
 290                 pWindowPropertyChanged = null;
 291         }
 292
 293         return r;
 294 }
 295
 296
 297 void
 298 _ActiveWindowManager::FireActiveAppEvent(unsigned int xid, int pid, const char* pAppName)
 299 {
 300         static int oldPid = 0;
 301         if (oldPid != pid)
 302         {
 303                 oldPid = pid;
 304                 char pkgname[255] = {0, };
 305                 if ((AUL_R_OK != aul_app_get_pkgname_bypid(pid, pkgname, 255)) || pkgname[0] == 0)
 306                 {
 307                         SysSecureLog(NID_APP, "Failed to get the package name from pid=%x pAppName=%s", pid, pAppName ? pAppName : "null");
 308                         return;
 309                 }
 310                 AppId appId(_Aul::GetRealAppId(String(pkgname)));
 311
 312                 std::unique_ptr<IEnumeratorT<Tizen::App::IActiveAppEventListener* > > pEnum(__activeAppEventListenerList.GetEnumeratorN());
 313                 if (pEnum.get())
 314                 {
 315                         while (pEnum->MoveNext() == E_SUCCESS)
 316                         {
 317                                 Tizen::App::IActiveAppEventListener* pListener = null;
 318                                 pEnum->GetCurrent(pListener);
 319                                 if (pListener)
 320                                 {
 321                                         pListener->OnActiveAppChanged(appId);
 322                                 }
 323                         }
 324                 }
 325         }
 326 }
 327
 328
 329 result
 330 _ActiveWindowManager::GetActiveApp(AppId& appId)
 331 {
 332         const unsigned int windowId = GetActiveWindow();
 333         const int processId = GetProcessId(windowId);
 334         char pkgname[255] = {0, };
 335         if (aul_app_get_pkgname_bypid(processId, pkgname, 255) != AUL_R_OK)
 336         {
 337                 SysSecureLog(NID_APP, "Failed to get the package name from pid=%x appId=%ls", processId, appId.GetPointer());
 338                 return E_SYSTEM;
 339         }
 340
 341         appId = _Aul::GetRealAppId(String(pkgname));
 342
 343         SysLog(NID_APP, "ActiveApp is %ls.", appId.GetPointer());
 344         return E_SUCCESS;
 345 }
 346
 347 _LibraryImpl&
 348 _ActiveWindowManager::GetEcoreXLibraryImpl(void)
 349 {
 350         if (__pEcoreXLibrary == null)
 351         {
 352                 __pEcoreXLibrary = new (std::nothrow) _LibraryImpl;
 353                 SysAssertf(__pEcoreXLibrary != null, "_LibraryImpl allocation failure.");
 354
 355                 result r = __pEcoreXLibrary->Construct(OSP_ECORE_X_SONAME);
 356                 SysAssertf(r == E_SUCCESS, "Dynamic loading error : %s.", GetErrorMessage(r));
 357         }
 358         return *__pEcoreXLibrary;
 359 }
 360
 361 _LibraryImpl&
 362 _ActiveWindowManager::GetEcoreLibraryImpl(void)
 363 {
 364         if (__pEcoreLibrary == null)
 365         {
 366                 __pEcoreLibrary = new (std::nothrow) _LibraryImpl;
 367                 SysAssertf(__pEcoreLibrary != null, "_LibraryImpl allocation failure.");
 368
 369                 result r = __pEcoreLibrary->Construct(OSP_ECORE_SONAME);
 370                 SysAssertf(r == E_SUCCESS, "Dynamic loading error : %s.", GetErrorMessage(r));
 371         }
 372         return *__pEcoreLibrary;
 373 }
 374
 375 _LibraryImpl&
 376 _ActiveWindowManager::GetX11LibraryImpl(void)
 377 {
 378         if (__pX11Library == null)
 379         {
 380                 __pX11Library = new (std::nothrow) _LibraryImpl;
 381                 SysAssertf(__pX11Library != null, "_LibraryImpl allocation failure.");
 382
 383                 result r = __pX11Library->Construct(OSP_X11_SONAME);
 384                 SysAssertf(r == E_SUCCESS, "Dynamic loading error : %s.", GetErrorMessage(r));
 385         }
 386         return *__pX11Library;
 387 }
 388
 389 unsigned int
 390 _ActiveWindowManager::GetActiveWindow(void)
 391 {
 392         if (p_ecore_x_window_root_list == null)
 393         {
 394                 _LibraryImpl& lib = GetEcoreXLibraryImpl();
 395                 p_ecore_x_window_root_list = reinterpret_cast<Ecore_X_Window*(*)(int* num_ret)>(lib.GetProcAddress(L"ecore_x_window_root_list"));
 396                 SysTryReturnResult(NID_APP, p_ecore_x_window_root_list != null, 0,
 397                                 "A system error has been occurred. Failed to get p_ecore_x_window_root_list.");
 398         }
 399         if (p_ecore_x_atom_get == null)
 400         {
 401                 _LibraryImpl& lib = GetEcoreXLibraryImpl();
 402                 p_ecore_x_atom_get = reinterpret_cast<Ecore_X_Atom(*)(const char* name)>(lib.GetProcAddress(L"ecore_x_atom_get"));
 403                 SysTryReturnResult(NID_APP, p_ecore_x_atom_get != null, 0,
 404                                 "A system error has been occurred. Failed to get ecore_x_atom_get.");
 405         }
 406         if (p_ecore_x_window_prop_window_get == null)
 407         {
 408                 _LibraryImpl& lib = GetEcoreXLibraryImpl();
 409                 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"));
 410                 SysTryReturnResult(NID_APP, p_ecore_x_window_prop_window_get != null, EINA_FALSE,
 411                                 "A system error has been occurred. Failed to get ecore_x_window_prop_window_get.");
 412         }
 413
 414         int num = 0;
 415         Ecore_X_Window* pRoots = p_ecore_x_window_root_list(&num);
 416
 417         Ecore_X_Window activeWin = 0;
 418         if (pRoots)
 419         {
 420                 Ecore_X_Atom activeAtom = p_ecore_x_atom_get("_NET_ACTIVE_WINDOW");
 421                 p_ecore_x_window_prop_window_get(pRoots[0], activeAtom, &activeWin, 1);
 422                 free(pRoots);
 423         }
 424
 425         return activeWin;
 426 }
 427
 428 int
 429 _ActiveWindowManager::GetProcessId(unsigned int window)
 430 {
 431         if (p_ecore_x_netwm_pid_get == null)
 432         {
 433                 _LibraryImpl& lib = GetEcoreXLibraryImpl();
 434                 p_ecore_x_netwm_pid_get = reinterpret_cast<Eina_Bool(*)(Ecore_X_Window win, int* pid)>(lib.GetProcAddress(L"ecore_x_netwm_pid_get"));
 435                 SysTryReturnResult(NID_APP, p_ecore_x_netwm_pid_get != null, EINA_FALSE,
 436                                 "A system error has been occurred. Failed to get ecore_x_netwm_pid_get.");
 437         }
 438
 439         int pid = 0;
 440         p_ecore_x_netwm_pid_get(window, &pid);
 441
 442         return pid;
 443 }
 444
 445 }} // Tizen::App