src/osx/cocoa/evtloop.mm

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/cocoa/evtloop.mm
   3 // Purpose:     implementation of wxEventLoop for OS X
   4 // Author:      Vadim Zeitlin, Stefan Csomor
   5 // Modified by:
   6 // Created:     2006-01-12
   7 // RCS-ID:      $Id: evtloop.cpp 54845 2008-07-30 14:52:41Z SC $
   8 // Copyright:   (c) 2006 Vadim Zeitlin <vadim@wxwindows.org>
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // for compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #include "wx/evtloop.h"
  28
  29 #ifndef WX_PRECOMP
  30     #include "wx/app.h"
  31 #endif // WX_PRECOMP
  32
  33 #include "wx/log.h"
  34
  35 #include "wx/osx/private.h"
  36
  37 // ============================================================================
  38 // wxEventLoop implementation
  39 // ============================================================================
  40
  41 /*
  42 static int CalculateNSEventMaskFromEventCategory(wxEventCategory cat)
  43 {
  44         NSLeftMouseDownMask     |
  45         NSLeftMouseUpMask |
  46         NSRightMouseDownMask |
  47         NSRightMouseUpMask              = 1 << NSRightMouseUp,
  48         NSMouseMovedMask                = 1 << NSMouseMoved,
  49         NSLeftMouseDraggedMask          = 1 << NSLeftMouseDragged,
  50         NSRightMouseDraggedMask         = 1 << NSRightMouseDragged,
  51         NSMouseEnteredMask              = 1 << NSMouseEntered,
  52         NSMouseExitedMask               = 1 << NSMouseExited,
  53         NSScrollWheelMask               = 1 << NSScrollWheel,
  54 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
  55         NSTabletPointMask               = 1 << NSTabletPoint,
  56         NSTabletProximityMask           = 1 << NSTabletProximity,
  57 #endif
  58         NSOtherMouseDownMask            = 1 << NSOtherMouseDown,
  59         NSOtherMouseUpMask              = 1 << NSOtherMouseUp,
  60         NSOtherMouseDraggedMask         = 1 << NSOtherMouseDragged,
  61
  62
  63
  64         NSKeyDownMask                   = 1 << NSKeyDown,
  65         NSKeyUpMask                     = 1 << NSKeyUp,
  66         NSFlagsChangedMask              = 1 << NSFlagsChanged,
  67
  68         NSAppKitDefinedMask             = 1 << NSAppKitDefined,
  69         NSSystemDefinedMask             = 1 << NSSystemDefined,
  70         NSApplicationDefinedMask        = 1 << NSApplicationDefined,
  71         NSPeriodicMask                  = 1 << NSPeriodic,
  72         NSCursorUpdateMask              = 1 << NSCursorUpdate,
  73
  74         NSAnyEventMask                  = 0xffffffffU
  75 }
  76 */
  77
  78 wxGUIEventLoop::wxGUIEventLoop()
  79 {
  80 }
  81
  82 //-----------------------------------------------------------------------------
  83 // events dispatch and loop handling
  84 //-----------------------------------------------------------------------------
  85
  86 #if 0
  87
  88 bool wxGUIEventLoop::Pending() const
  89 {
  90 #if 0
  91     // this code doesn't reliably detect pending events
  92     // so better return true and have the dispatch deal with it
  93     // as otherwise we end up in a tight loop when idle events are responded
  94     // to by RequestMore(true)
  95     wxMacAutoreleasePool autoreleasepool;
  96
  97     return [[NSApplication sharedApplication]
  98             nextEventMatchingMask: NSAnyEventMask
  99             untilDate: nil
 100             inMode: NSDefaultRunLoopMode
 101             dequeue: NO] != nil;
 102 #else
 103     return true;
 104 #endif
 105 }
 106
 107 bool wxGUIEventLoop::Dispatch()
 108 {
 109     if ( !wxTheApp )
 110         return false;
 111
 112     wxMacAutoreleasePool autoreleasepool;
 113
 114     if(NSEvent *event = [NSApp
 115                 nextEventMatchingMask:NSAnyEventMask
 116                 untilDate:[NSDate dateWithTimeIntervalSinceNow: m_sleepTime]
 117                 inMode:NSDefaultRunLoopMode
 118                 dequeue: YES])
 119     {
 120         if (wxTheApp)
 121             wxTheApp->MacSetCurrentEvent(event, NULL);
 122         m_sleepTime = 0.0;
 123         [NSApp sendEvent: event];
 124     }
 125     else
 126     {
 127         if (wxTheApp)
 128             wxTheApp->ProcessPendingEvents();
 129
 130         if ( wxTheApp->ProcessIdle() )
 131             m_sleepTime = 0.0 ;
 132         else
 133         {
 134             m_sleepTime = 1.0;
 135 #if wxUSE_THREADS
 136             wxMutexGuiLeave();
 137             wxMilliSleep(20);
 138             wxMutexGuiEnter();
 139 #endif
 140         }
 141     }
 142
 143     return true;
 144 }
 145
 146 #endif
 147
 148 int wxGUIEventLoop::DoDispatchTimeout(unsigned long timeout)
 149 {
 150     wxMacAutoreleasePool autoreleasepool;
 151
 152     NSEvent *event = [NSApp
 153                 nextEventMatchingMask:NSAnyEventMask
 154                 untilDate:[NSDate dateWithTimeIntervalSinceNow: timeout/1000]
 155                 inMode:NSDefaultRunLoopMode
 156                 dequeue: YES];
 157
 158     if ( event == nil )
 159         return -1;
 160
 161     [NSApp sendEvent: event];
 162
 163     return 1;
 164 }
 165
 166 void wxGUIEventLoop::DoRun()
 167 {
 168     wxMacAutoreleasePool autoreleasepool;
 169     [NSApp run];
 170 }
 171
 172 void wxGUIEventLoop::DoStop()
 173 {
 174     [NSApp stop:0];
 175 }
 176
 177 void wxModalEventLoop::DoRun()
 178 {
 179     wxMacAutoreleasePool pool;
 180
 181     // If the app hasn't started, flush the event queue
 182     // If we don't do this, the Dock doesn't get the message that
 183     // the app has started so will refuse to activate it.
 184     [NSApplication sharedApplication];
 185     if (![NSApp isRunning])
 186     {
 187         while(NSEvent *event = [NSApp nextEventMatchingMask:NSAnyEventMask untilDate:nil inMode:NSDefaultRunLoopMode dequeue:YES])
 188         {
 189             [NSApp sendEvent:event];
 190         }
 191     }
 192
 193     NSWindow* theWindow = m_modalWindow->GetWXWindow();
 194     [NSApp runModalForWindow:theWindow];
 195 }
 196
 197 void wxModalEventLoop::DoStop()
 198 {
 199     [NSApp stopModal];
 200 }
 201