src/cocoa/evtloop.mm

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        cocoa/evtloop.mm
   3 // Purpose:     implements wxEventLoop for Cocoa
   4 // Author:      David Elliott
   5 // Modified by:
   6 // Created:     2003/10/02
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2003 David Elliott <dfe@cox.net>
   9 // License:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13 #ifndef WX_PRECOMP
  14     #include "wx/log.h"
  15 #endif //WX_PRECOMP
  16
  17 #include "wx/evtloop.h"
  18
  19 #import <AppKit/NSApplication.h>
  20
  21 // ========================================================================
  22 // wxEventLoopImpl
  23 // ========================================================================
  24
  25 class WXDLLEXPORT wxEventLoopImpl
  26 {
  27 public:
  28     // ctor
  29     wxEventLoopImpl() { SetExitCode(0); }
  30
  31     // set/get the exit code
  32     void SetExitCode(int exitcode) { m_exitcode = exitcode; }
  33     int GetExitCode() const { return m_exitcode; }
  34
  35 private:
  36     // the exit code of the event loop
  37     int m_exitcode;
  38 };
  39
  40 // ========================================================================
  41 // wxEventLoop
  42 // ========================================================================
  43
  44 // ----------------------------------------------------------------------------
  45 // wxEventLoop running and exiting
  46 // ----------------------------------------------------------------------------
  47
  48 wxEventLoop *wxEventLoop::ms_activeLoop = NULL;
  49
  50 wxEventLoop::~wxEventLoop()
  51 {
  52     wxASSERT_MSG( !m_impl, _T("should have been deleted in Run()") );
  53 }
  54
  55 bool wxEventLoop::IsRunning() const
  56 {
  57     return m_impl;
  58 }
  59
  60 int wxEventLoop::Run()
  61 {
  62     // event loops are not recursive, you need to create another loop!
  63     wxCHECK_MSG( !IsRunning(), -1, _T("can't reenter a message loop") );
  64
  65     wxEventLoop *oldLoop = ms_activeLoop;
  66     ms_activeLoop = this;
  67
  68     m_impl = new wxEventLoopImpl;
  69
  70     [[NSApplication sharedApplication] run];
  71
  72     int exitcode = m_impl->GetExitCode();
  73     delete m_impl;
  74     m_impl = NULL;
  75
  76     ms_activeLoop = oldLoop;
  77
  78     return exitcode;
  79 }
  80
  81 void wxEventLoop::Exit(int rc)
  82 {
  83     wxCHECK_RET( IsRunning(), _T("can't call Exit() if not running") );
  84
  85     m_impl->SetExitCode(rc);
  86
  87     NSApplication *cocoaApp = [NSApplication sharedApplication];
  88     wxLogDebug("wxEventLoop::Exit isRunning=%d", (int)[cocoaApp isRunning]);
  89     [cocoaApp stop: cocoaApp];
  90 }
  91
  92 // ----------------------------------------------------------------------------
  93 // wxEventLoop message processing dispatching
  94 // ----------------------------------------------------------------------------
  95
  96 bool wxEventLoop::Pending() const
  97 {
  98     return 0;
  99 }
 100
 101 bool wxEventLoop::Dispatch()
 102 {
 103     wxCHECK_MSG( IsRunning(), false, _T("can't call Dispatch() if not running") );
 104     return false;
 105 }
 106