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 license
  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
  43 // ----------------------------------------------------------------------------
  44 // globals
  45 // ----------------------------------------------------------------------------
  46
  47 wxPoseAsInitializer *wxPoseAsInitializer::sm_first = NULL;
  48
  49 @interface wxPoserNSApplication : NSApplication
  50 {
  51 }
  52
  53 - (void)doIdle: (id)data;
  54 - (void)finishLaunching;
  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)finishLaunching
  84 {
  85     wxLogDebug("finishLaunching");
  86     bool initsuccess = wxTheApp->OnInit();
  87     if(!initsuccess)
  88         [super stop: NULL];
  89
  90     [super finishLaunching];
  91 }
  92
  93 - (void)sendEvent: (NSEvent*)anEvent
  94 {
  95     wxLogDebug("SendEvent");
  96     wxTheApp->CocoaInstallRequestedIdleHandler();
  97     [super sendEvent: anEvent];
  98 }
  99
 100 - (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)theApplication
 101 {
 102     BOOL ret = wxTheApp->GetExitOnFrameDelete();
 103     wxLogDebug("applicationShouldTermintaeAfterLastWindowClosed=%d",ret);
 104     return ret;
 105 }
 106
 107 @end // wxPoserNSApplication
 108 WX_IMPLEMENT_POSER(wxPoserNSApplication);
 109
 110 // ============================================================================
 111 // functions
 112 // ============================================================================
 113
 114 void wxApp::Exit()
 115 {
 116     wxApp::CleanUp();
 117
 118     wxAppConsole::Exit();
 119 }
 120
 121 // ============================================================================
 122 // wxApp implementation
 123 // ============================================================================
 124
 125 // ----------------------------------------------------------------------------
 126 // wxApp Static member initialization
 127 // ----------------------------------------------------------------------------
 128
 129 #if !USE_SHARED_LIBRARY
 130 IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
 131 BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
 132     EVT_IDLE(wxApp::OnIdle)
 133 //    EVT_END_SESSION(wxApp::OnEndSession)
 134 //    EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
 135 END_EVENT_TABLE()
 136 #endif
 137
 138 // ----------------------------------------------------------------------------
 139 // wxApp initialization/cleanup
 140 // ----------------------------------------------------------------------------
 141
 142 bool wxApp::Initialize(int& argc, wxChar **argv)
 143 {
 144     // Mac OS X passes a process serial number command line argument when
 145     // the application is launched from the Finder. This argument must be
 146     // removed from the command line arguments before being handled by the
 147     // application (otherwise applications would need to handle it)
 148     if ( argc > 1 )
 149     {
 150         static const wxChar *ARG_PSN = _T("-psn_");
 151         if ( wxStrncmp(argv[1], ARG_PSN, sizeof(ARG_PSN) - 1) == 0 )
 152         {
 153             // remove this argument
 154             memmove(argv, argv + 1, argc--);
 155         }
 156     }
 157
 158     // Posing must be completed before any instances of the Objective-C
 159     // classes being posed as are created.
 160     wxPoseAsInitializer::InitializePosers();
 161
 162     return wxAppBase::Initialize(argc, argv);
 163 }
 164
 165 void wxApp::CleanUp()
 166 {
 167     wxDC::CocoaShutdownTextSystem();
 168
 169     wxAppBase::CleanUp();
 170 }
 171
 172 // ----------------------------------------------------------------------------
 173 // wxApp creation
 174 // ----------------------------------------------------------------------------
 175
 176 wxApp::wxApp()
 177 {
 178     m_topWindow = NULL;
 179     wxTheApp = this;
 180
 181     m_isIdle = true;
 182 #if WXWIN_COMPATIBILITY_2_2
 183     m_wantDebugOutput = TRUE;
 184 #endif
 185
 186     argc = 0;
 187     argv = NULL;
 188     m_cocoaApp = NULL;
 189 }
 190
 191 void wxApp::CocoaInstallIdleHandler()
 192 {
 193     wxLogDebug("wxApp::CocoaInstallIdleHandler");
 194     m_isIdle = false;
 195     // Call doIdle for EVERYTHING dammit
 196 // We'd need Foundation/NSConnection.h for this next constant, do we need it?
 197     [[ NSRunLoop currentRunLoop ] performSelector:@selector(doIdle:) target:m_cocoaApp argument:NULL order:0 modes:[NSArray arrayWithObjects:NSDefaultRunLoopMode, /* NSConnectionReplyRunLoopMode,*/ NSModalPanelRunLoopMode, /**/NSEventTrackingRunLoopMode,/**/ nil] ];
 198 }
 199
 200 bool wxApp::OnInitGui()
 201 {
 202     if(!wxAppBase::OnInitGui())
 203         return FALSE;
 204
 205     // Create the app using the sharedApplication method
 206     m_cocoaApp = [NSApplication sharedApplication];
 207     wxDC::CocoaInitializeTextSystem();
 208 //    [ m_cocoaApp setDelegate:m_cocoaApp ];
 209     #if 0
 210     wxLogDebug("Just for kicks");
 211     [ m_cocoaApp performSelector:@selector(doIdle:) withObject:NULL ];
 212     wxLogDebug("okay.. done now");
 213     #endif
 214     return TRUE;
 215 }
 216
 217 bool wxApp::OnInit()
 218 {
 219     if(!wxAppBase::OnInit())
 220         return FALSE;
 221
 222     return TRUE;
 223 }
 224
 225 bool wxApp::Initialized()
 226 {
 227   if (GetTopWindow())
 228     return TRUE;
 229   else
 230     return FALSE;
 231 }
 232
 233 int wxApp::MainLoop()
 234 {
 235     [m_cocoaApp run];
 236     return 0;
 237 }
 238
 239 // Returns TRUE if more time is needed.
 240 bool wxApp::ProcessIdle()
 241 {
 242     wxIdleEvent event;
 243     event.SetEventObject(this);
 244     ProcessEvent(event);
 245
 246     return event.MoreRequested();
 247 }
 248
 249 void wxApp::ExitMainLoop()
 250 {
 251     wxLogDebug("wxApp::ExitMailLoop m_isIdle=%d, isRunning=%d",(int)m_isIdle,(int)[m_cocoaApp isRunning]);
 252 //    CocoaInstallRequestedIdleHandler();
 253 //    if(m_isIdle)
 254 //        [[ NSRunLoop currentRunLoop ] performSelector:@selector(doIdle:) target:m_cocoaApp argument:NULL order:0 modes:[NSArray arrayWithObjects:NSDefaultRunLoopMode, /* NSConnectionReplyRunLoopMode, NSModalPanelRunLoopMode, NSEventTrackingRunLoopMode,*/ nil] ];
 255 // actually.. we WANT the idle event
 256 // or not
 257 #if 0
 258     if(!m_isIdle)
 259         [[ NSRunLoop currentRunLoop ] cancelPerformSelector:@selector(doIdle:) target:m_cocoaApp argument:NULL];
 260 #endif
 261     [m_cocoaApp terminate: m_cocoaApp];
 262 }
 263
 264 // Is a message/event pending?
 265 bool wxApp::Pending()
 266 {
 267     return 0;
 268 }
 269
 270 // Dispatch a message.
 271 void wxApp::Dispatch()
 272 {
 273 }
 274
 275 void wxApp::OnIdle(wxIdleEvent& event)
 276 {
 277     wxLogDebug("wxApp::OnIdle");
 278    static bool s_inOnIdle = FALSE;
 279
 280     // Avoid recursion (via ProcessEvent default case)
 281     if ( s_inOnIdle )
 282         return;
 283     s_inOnIdle = TRUE;
 284
 285
 286     DeletePendingObjects();
 287
 288     // flush the logged messages if any
 289     wxLog *pLog = wxLog::GetActiveTarget();
 290     if ( pLog != NULL && pLog->HasPendingMessages() )
 291         pLog->Flush();
 292
 293     // Send OnIdle events to all windows
 294     bool needMore = SendIdleEvents();
 295
 296     if (needMore)
 297       event.RequestMore(TRUE);
 298
 299     s_inOnIdle = FALSE;
 300 }
 301
 302 // Send idle event to all top-level windows
 303 bool wxApp::SendIdleEvents()
 304 {
 305     bool needMore = FALSE;
 306     wxWindowList::Node* node = wxTopLevelWindows.GetFirst();
 307     while (node)
 308     {
 309         wxWindow* win = node->GetData();
 310         if (SendIdleEvents(win))
 311             needMore = TRUE;
 312
 313         node = node->GetNext();
 314     }
 315     return needMore;
 316 }
 317
 318 // Send idle event to window and all subwindows
 319 bool wxApp::SendIdleEvents(wxWindow* win)
 320 {
 321 //    wxLogDebug("SendIdleEvents win=%p",win);
 322     bool needMore = FALSE;
 323
 324     wxIdleEvent event;
 325     event.SetEventObject(win);
 326     win->ProcessEvent(event);
 327
 328     if (event.MoreRequested())
 329         needMore = TRUE;
 330
 331     wxWindowList::Node* node = win->GetChildren().GetFirst();
 332     while (node)
 333     {
 334 //        wxLogDebug("child=%p",node->Data());
 335         wxWindow* win = node->GetData();
 336         if (SendIdleEvents(win))
 337             needMore = TRUE;
 338
 339         node = node->GetNext();
 340     }
 341     return needMore;
 342 }
 343
 344 // Yield to other processes
 345
 346 bool wxApp::Yield(bool onlyIfNeeded)
 347 {
 348     // MT-FIXME
 349     static bool s_inYield = false;
 350
 351 #if wxUSE_LOG
 352     // disable log flushing from here because a call to wxYield() shouldn't
 353     // normally result in message boxes popping up &c
 354     wxLog::Suspend();
 355 #endif // wxUSE_LOG
 356
 357     if (s_inYield)
 358     {
 359         if ( !onlyIfNeeded )
 360         {
 361             wxFAIL_MSG( wxT("wxYield called recursively" ) );
 362         }
 363
 364         return false;
 365     }
 366
 367     s_inYield = true;
 368
 369     wxLogDebug("WARNING: SUPPOSED to have yielded!");
 370     // FIXME: Do something!
 371
 372 #if wxUSE_LOG
 373     // let the logs be flashed again
 374     wxLog::Resume();
 375 #endif // wxUSE_LOG
 376
 377     s_inYield = false;
 378
 379     return true;
 380 }
 381