src/cocoa/app.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        cocoa/app.mm
   3 // Purpose:     wxApp
   4 // Author:      David Elliott
   5 // Modified by:
   6 // Created:     2002/11/27
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) David Elliott
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #include "wx/wxprec.h"
  21 #ifndef WX_PRECOMP
  22     #include "wx/defs.h"
  23     #include "wx/app.h"
  24     #include "wx/frame.h"
  25     #include "wx/dialog.h"
  26     #include "wx/dc.h"
  27     #include "wx/intl.h"
  28     #include "wx/log.h"
  29 #endif
  30
  31 #include "wx/module.h"
  32
  33 #include "wx/cocoa/ObjcPose.h"
  34
  35 #if wxUSE_WX_RESOURCES
  36 #  include "wx/resource.h"
  37 #endif
  38
  39 #import <AppKit/NSApplication.h>
  40 #import <Foundation/NSRunLoop.h>
  41 #import <Foundation/NSArray.h>
  42 #import <Foundation/NSAutoreleasePool.h>
  43
  44 // ----------------------------------------------------------------------------
  45 // globals
  46 // ----------------------------------------------------------------------------
  47
  48 wxPoseAsInitializer *wxPoseAsInitializer::sm_first = NULL;
  49
  50 @interface wxPoserNSApplication : NSApplication
  51 {
  52 }
  53
  54 - (void)doIdle: (id)data;
  55 - (void)sendEvent: (NSEvent*)anEvent;
  56 - (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)theApplication;
  57 @end // wxPoserNSApplication
  58
  59 @implementation wxPoserNSApplication : NSApplication
  60
  61 - (void)doIdle: (id)data
  62 {
  63     wxASSERT(wxTheApp);
  64     wxLogDebug("doIdle called");
  65     NSRunLoop *rl = [NSRunLoop currentRunLoop];
  66     // runMode: beforeDate returns YES if something was done
  67     while(wxTheApp->ProcessIdle()) // FIXME: AND NO EVENTS ARE PENDING
  68     {
  69         wxLogDebug("Looping for idle events");
  70         #if 1
  71         if( [rl runMode:[rl currentMode] beforeDate:[NSDate distantPast]])
  72         {
  73             wxLogDebug("Found actual work to do");
  74             break;
  75         }
  76         #endif
  77     }
  78     wxLogDebug("Idle processing complete, requesting next idle event");
  79     // Add ourself back into the run loop (on next event) if necessary
  80     wxTheApp->CocoaRequestIdle();
  81 }
  82
  83 - (void)sendEvent: (NSEvent*)anEvent
  84 {
  85     wxLogDebug("SendEvent");
  86     wxTheApp->CocoaInstallRequestedIdleHandler();
  87     [super sendEvent: anEvent];
  88 }
  89
  90 - (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)theApplication
  91 {
  92     BOOL ret = wxTheApp->GetExitOnFrameDelete();
  93     wxLogDebug("applicationShouldTermintaeAfterLastWindowClosed=%d",ret);
  94     return ret;
  95 }
  96
  97 @end // wxPoserNSApplication
  98 WX_IMPLEMENT_POSER(wxPoserNSApplication);
  99
 100 class wxAutoNSAutoreleasePool
 101 {
 102 public:
 103     wxAutoNSAutoreleasePool()
 104     {
 105         m_pool = [[NSAutoreleasePool alloc] init];
 106     }
 107     ~wxAutoNSAutoreleasePool()
 108     {
 109         [m_pool release];
 110     }
 111 protected:
 112     NSAutoreleasePool *m_pool;
 113 };
 114
 115 // ============================================================================
 116 // functions
 117 // ============================================================================
 118
 119 void wxApp::Exit()
 120 {
 121     wxApp::CleanUp();
 122
 123     wxAppConsole::Exit();
 124 }
 125
 126 // ============================================================================
 127 // wxApp implementation
 128 // ============================================================================
 129
 130 // ----------------------------------------------------------------------------
 131 // wxApp Static member initialization
 132 // ----------------------------------------------------------------------------
 133
 134 #if !USE_SHARED_LIBRARY
 135 IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
 136 BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
 137     EVT_IDLE(wxApp::OnIdle)
 138 //    EVT_END_SESSION(wxApp::OnEndSession)
 139 //    EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
 140 END_EVENT_TABLE()
 141 #endif
 142
 143 // ----------------------------------------------------------------------------
 144 // wxApp initialization/cleanup
 145 // ----------------------------------------------------------------------------
 146
 147 bool wxApp::Initialize(int& argc, wxChar **argv)
 148 {
 149     wxAutoNSAutoreleasePool pool;
 150     // Mac OS X passes a process serial number command line argument when
 151     // the application is launched from the Finder. This argument must be
 152     // removed from the command line arguments before being handled by the
 153     // application (otherwise applications would need to handle it)
 154     if ( argc > 1 )
 155     {
 156         static const wxChar *ARG_PSN = _T("-psn_");
 157         if ( wxStrncmp(argv[1], ARG_PSN, sizeof(ARG_PSN) - 1) == 0 )
 158         {
 159             // remove this argument
 160             memmove(argv, argv + 1, argc--);
 161         }
 162     }
 163
 164     // Posing must be completed before any instances of the Objective-C
 165     // classes being posed as are created.
 166     wxPoseAsInitializer::InitializePosers();
 167
 168     return wxAppBase::Initialize(argc, argv);
 169 }
 170
 171 void wxApp::CleanUp()
 172 {
 173     wxDC::CocoaShutdownTextSystem();
 174
 175     wxAppBase::CleanUp();
 176 }
 177
 178 // ----------------------------------------------------------------------------
 179 // wxApp creation
 180 // ----------------------------------------------------------------------------
 181
 182 wxApp::wxApp()
 183 {
 184     m_topWindow = NULL;
 185     wxTheApp = this;
 186
 187     m_isIdle = true;
 188 #if WXWIN_COMPATIBILITY_2_2
 189     m_wantDebugOutput = TRUE;
 190 #endif
 191
 192     argc = 0;
 193     argv = NULL;
 194     m_cocoaApp = NULL;
 195 }
 196
 197 void wxApp::CocoaInstallIdleHandler()
 198 {
 199     wxLogDebug("wxApp::CocoaInstallIdleHandler");
 200     m_isIdle = false;
 201     // Call doIdle for EVERYTHING dammit
 202 // We'd need Foundation/NSConnection.h for this next constant, do we need it?
 203     [[ NSRunLoop currentRunLoop ] performSelector:@selector(doIdle:) target:m_cocoaApp argument:NULL order:0 modes:[NSArray arrayWithObjects:NSDefaultRunLoopMode, /* NSConnectionReplyRunLoopMode,*/ NSModalPanelRunLoopMode, /**/NSEventTrackingRunLoopMode,/**/ nil] ];
 204 }
 205
 206 bool wxApp::OnInitGui()
 207 {
 208     wxAutoNSAutoreleasePool pool;
 209     if(!wxAppBase::OnInitGui())
 210         return FALSE;
 211
 212     // Create the app using the sharedApplication method
 213     m_cocoaApp = [NSApplication sharedApplication];
 214     wxDC::CocoaInitializeTextSystem();
 215 //    [ m_cocoaApp setDelegate:m_cocoaApp ];
 216     #if 0
 217     wxLogDebug("Just for kicks");
 218     [ m_cocoaApp performSelector:@selector(doIdle:) withObject:NULL ];
 219     wxLogDebug("okay.. done now");
 220     #endif
 221     return TRUE;
 222 }
 223
 224 bool wxApp::CallOnInit()
 225 {
 226     wxAutoNSAutoreleasePool pool;
 227     return OnInit();
 228 }
 229
 230 bool wxApp::OnInit()
 231 {
 232     if(!wxAppBase::OnInit())
 233         return FALSE;
 234
 235     return TRUE;
 236 }
 237
 238 bool wxApp::Initialized()
 239 {
 240   if (GetTopWindow())
 241     return TRUE;
 242   else
 243     return FALSE;
 244 }
 245
 246 int wxApp::MainLoop()
 247 {
 248     [m_cocoaApp run];
 249     return 0;
 250 }
 251
 252 // Returns TRUE if more time is needed.
 253 bool wxApp::ProcessIdle()
 254 {
 255     wxIdleEvent event;
 256     event.SetEventObject(this);
 257     ProcessEvent(event);
 258
 259     return event.MoreRequested();
 260 }
 261
 262 void wxApp::ExitMainLoop()
 263 {
 264     wxLogDebug("wxApp::ExitMailLoop m_isIdle=%d, isRunning=%d",(int)m_isIdle,(int)[m_cocoaApp isRunning]);
 265 //    CocoaInstallRequestedIdleHandler();
 266 //    if(m_isIdle)
 267 //        [[ NSRunLoop currentRunLoop ] performSelector:@selector(doIdle:) target:m_cocoaApp argument:NULL order:0 modes:[NSArray arrayWithObjects:NSDefaultRunLoopMode, /* NSConnectionReplyRunLoopMode, NSModalPanelRunLoopMode, NSEventTrackingRunLoopMode,*/ nil] ];
 268 // actually.. we WANT the idle event
 269 // or not
 270 #if 0
 271     if(!m_isIdle)
 272         [[ NSRunLoop currentRunLoop ] cancelPerformSelector:@selector(doIdle:) target:m_cocoaApp argument:NULL];
 273 #endif
 274     [m_cocoaApp terminate: m_cocoaApp];
 275 }
 276
 277 // Is a message/event pending?
 278 bool wxApp::Pending()
 279 {
 280     return 0;
 281 }
 282
 283 // Dispatch a message.
 284 void wxApp::Dispatch()
 285 {
 286 }
 287
 288 void wxApp::OnIdle(wxIdleEvent& event)
 289 {
 290     wxLogDebug("wxApp::OnIdle");
 291    static bool s_inOnIdle = FALSE;
 292
 293     // Avoid recursion (via ProcessEvent default case)
 294     if ( s_inOnIdle )
 295         return;
 296     s_inOnIdle = TRUE;
 297
 298
 299     DeletePendingObjects();
 300
 301     // flush the logged messages if any
 302     wxLog *pLog = wxLog::GetActiveTarget();
 303     if ( pLog != NULL && pLog->HasPendingMessages() )
 304         pLog->Flush();
 305
 306     // Send OnIdle events to all windows
 307     bool needMore = SendIdleEvents();
 308
 309     if (needMore)
 310       event.RequestMore(TRUE);
 311
 312     s_inOnIdle = FALSE;
 313 }
 314
 315 // Send idle event to all top-level windows
 316 bool wxApp::SendIdleEvents()
 317 {
 318     bool needMore = FALSE;
 319     wxWindowList::Node* node = wxTopLevelWindows.GetFirst();
 320     while (node)
 321     {
 322         wxWindow* win = node->GetData();
 323         if (SendIdleEvents(win))
 324             needMore = TRUE;
 325
 326         node = node->GetNext();
 327     }
 328     return needMore;
 329 }
 330
 331 // Send idle event to window and all subwindows
 332 bool wxApp::SendIdleEvents(wxWindow* win)
 333 {
 334 //    wxLogDebug("SendIdleEvents win=%p",win);
 335     bool needMore = FALSE;
 336
 337     wxIdleEvent event;
 338     event.SetEventObject(win);
 339     win->ProcessEvent(event);
 340
 341     if (event.MoreRequested())
 342         needMore = TRUE;
 343
 344     wxWindowList::Node* node = win->GetChildren().GetFirst();
 345     while (node)
 346     {
 347 //        wxLogDebug("child=%p",node->Data());
 348         wxWindow* win = node->GetData();
 349         if (SendIdleEvents(win))
 350             needMore = TRUE;
 351
 352         node = node->GetNext();
 353     }
 354     return needMore;
 355 }
 356
 357 // Yield to other processes
 358
 359 bool wxApp::Yield(bool onlyIfNeeded)
 360 {
 361     // MT-FIXME
 362     static bool s_inYield = false;
 363
 364 #if wxUSE_LOG
 365     // disable log flushing from here because a call to wxYield() shouldn't
 366     // normally result in message boxes popping up &c
 367     wxLog::Suspend();
 368 #endif // wxUSE_LOG
 369
 370     if (s_inYield)
 371     {
 372         if ( !onlyIfNeeded )
 373         {
 374             wxFAIL_MSG( wxT("wxYield called recursively" ) );
 375         }
 376
 377         return false;
 378     }
 379
 380     s_inYield = true;
 381
 382     wxLogDebug("WARNING: SUPPOSED to have yielded!");
 383     // FIXME: Do something!
 384
 385 #if wxUSE_LOG
 386     // let the logs be flashed again
 387     wxLog::Resume();
 388 #endif // wxUSE_LOG
 389
 390     s_inYield = false;
 391
 392     return true;
 393 }
 394