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     #include "wx/nonownedwnd.h"
  32 #endif // WX_PRECOMP
  33
  34 #include "wx/log.h"
  35
  36 #include "wx/osx/private.h"
  37
  38 // ============================================================================
  39 // wxEventLoop implementation
  40 // ============================================================================
  41
  42 /*
  43 static int CalculateNSEventMaskFromEventCategory(wxEventCategory cat)
  44 {
  45         NSLeftMouseDownMask     |
  46         NSLeftMouseUpMask |
  47         NSRightMouseDownMask |
  48         NSRightMouseUpMask              = 1 << NSRightMouseUp,
  49         NSMouseMovedMask                = 1 << NSMouseMoved,
  50         NSLeftMouseDraggedMask          = 1 << NSLeftMouseDragged,
  51         NSRightMouseDraggedMask         = 1 << NSRightMouseDragged,
  52         NSMouseEnteredMask              = 1 << NSMouseEntered,
  53         NSMouseExitedMask               = 1 << NSMouseExited,
  54         NSScrollWheelMask               = 1 << NSScrollWheel,
  55 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
  56         NSTabletPointMask               = 1 << NSTabletPoint,
  57         NSTabletProximityMask           = 1 << NSTabletProximity,
  58 #endif
  59         NSOtherMouseDownMask            = 1 << NSOtherMouseDown,
  60         NSOtherMouseUpMask              = 1 << NSOtherMouseUp,
  61         NSOtherMouseDraggedMask         = 1 << NSOtherMouseDragged,
  62
  63
  64
  65         NSKeyDownMask                   = 1 << NSKeyDown,
  66         NSKeyUpMask                     = 1 << NSKeyUp,
  67         NSFlagsChangedMask              = 1 << NSFlagsChanged,
  68
  69         NSAppKitDefinedMask             = 1 << NSAppKitDefined,
  70         NSSystemDefinedMask             = 1 << NSSystemDefined,
  71         NSApplicationDefinedMask        = 1 << NSApplicationDefined,
  72         NSPeriodicMask                  = 1 << NSPeriodic,
  73         NSCursorUpdateMask              = 1 << NSCursorUpdate,
  74
  75         NSAnyEventMask                  = 0xffffffffU
  76 }
  77 */
  78
  79 wxGUIEventLoop::wxGUIEventLoop()
  80 {
  81 }
  82
  83 //-----------------------------------------------------------------------------
  84 // events dispatch and loop handling
  85 //-----------------------------------------------------------------------------
  86
  87 #if 0
  88
  89 bool wxGUIEventLoop::Pending() const
  90 {
  91 #if 0
  92     // this code doesn't reliably detect pending events
  93     // so better return true and have the dispatch deal with it
  94     // as otherwise we end up in a tight loop when idle events are responded
  95     // to by RequestMore(true)
  96     wxMacAutoreleasePool autoreleasepool;
  97
  98     return [[NSApplication sharedApplication]
  99             nextEventMatchingMask: NSAnyEventMask
 100             untilDate: nil
 101             inMode: NSDefaultRunLoopMode
 102             dequeue: NO] != nil;
 103 #else
 104     return true;
 105 #endif
 106 }
 107
 108 bool wxGUIEventLoop::Dispatch()
 109 {
 110     if ( !wxTheApp )
 111         return false;
 112
 113     wxMacAutoreleasePool autoreleasepool;
 114
 115     if(NSEvent *event = [NSApp
 116                 nextEventMatchingMask:NSAnyEventMask
 117                 untilDate:[NSDate dateWithTimeIntervalSinceNow: m_sleepTime]
 118                 inMode:NSDefaultRunLoopMode
 119                 dequeue: YES])
 120     {
 121         WXEVENTREF formerEvent = wxTheApp == NULL ? NULL : wxTheApp->MacGetCurrentEvent();
 122         WXEVENTHANDLERCALLREF formerHandler = wxTheApp == NULL ? NULL : wxTheApp->MacGetCurrentEventHandlerCallRef();
 123
 124         if (wxTheApp)
 125             wxTheApp->MacSetCurrentEvent(event, NULL);
 126         m_sleepTime = 0.0;
 127         [NSApp sendEvent: event];
 128
 129         if (wxTheApp)
 130             wxTheApp->MacSetCurrentEvent(formerEvent , formerHandler);
 131     }
 132     else
 133     {
 134         if (wxTheApp)
 135             wxTheApp->ProcessPendingEvents();
 136
 137         if ( wxTheApp->ProcessIdle() )
 138             m_sleepTime = 0.0 ;
 139         else
 140         {
 141             m_sleepTime = 1.0;
 142 #if wxUSE_THREADS
 143             wxMutexGuiLeave();
 144             wxMilliSleep(20);
 145             wxMutexGuiEnter();
 146 #endif
 147         }
 148     }
 149
 150     return true;
 151 }
 152
 153 #endif
 154
 155 int wxGUIEventLoop::DoDispatchTimeout(unsigned long timeout)
 156 {
 157     wxMacAutoreleasePool autoreleasepool;
 158
 159     NSEvent *event = [NSApp
 160                 nextEventMatchingMask:NSAnyEventMask
 161                 untilDate:[NSDate dateWithTimeIntervalSinceNow: timeout/1000]
 162                 inMode:NSDefaultRunLoopMode
 163                 dequeue: YES];
 164
 165     if ( event == nil )
 166         return -1;
 167
 168     [NSApp sendEvent: event];
 169
 170     return 1;
 171 }
 172
 173 void wxGUIEventLoop::DoRun()
 174 {
 175     wxMacAutoreleasePool autoreleasepool;
 176     [NSApp run];
 177 }
 178
 179 void wxGUIEventLoop::DoStop()
 180 {
 181     [NSApp stop:0];
 182     // only calling stop: is not enough when called from a runloop-observer,
 183     // therefore add a dummy event, to make sure the runloop gets another round
 184     NSEvent *event = [NSEvent otherEventWithType:NSApplicationDefined
 185                                         location:NSMakePoint(0.0, 0.0)
 186                                    modifierFlags:0
 187                                        timestamp:0
 188                                     windowNumber:0
 189                                          context:nil
 190                                          subtype:0 data1:0 data2:0];
 191     [NSApp postEvent:event atStart:FALSE];
 192 }
 193
 194 CFRunLoopRef wxGUIEventLoop::CFGetCurrentRunLoop() const
 195 {
 196     NSRunLoop* nsloop = [NSRunLoop currentRunLoop];
 197     return [nsloop getCFRunLoop];
 198 }
 199
 200
 201 // TODO move into a evtloop_osx.cpp
 202
 203 wxModalEventLoop::wxModalEventLoop(wxWindow *modalWindow)
 204 {
 205     m_modalWindow = dynamic_cast<wxNonOwnedWindow*> (modalWindow);
 206     wxASSERT_MSG( m_modalWindow != NULL, "must pass in a toplevel window for modal event loop" );
 207     m_modalNativeWindow = m_modalWindow->GetWXWindow();
 208 }
 209
 210 wxModalEventLoop::wxModalEventLoop(WXWindow modalNativeWindow)
 211 {
 212     m_modalWindow = NULL;
 213     wxASSERT_MSG( modalNativeWindow != NULL, "must pass in a toplevel window for modal event loop" );
 214     m_modalNativeWindow = modalNativeWindow;
 215 }
 216
 217 // END move into a evtloop_osx.cpp
 218
 219 void wxModalEventLoop::DoRun()
 220 {
 221     wxMacAutoreleasePool pool;
 222
 223     // If the app hasn't started, flush the event queue
 224     // If we don't do this, the Dock doesn't get the message that
 225     // the app has started so will refuse to activate it.
 226     [NSApplication sharedApplication];
 227     if (![NSApp isRunning])
 228     {
 229         while(NSEvent *event = [NSApp nextEventMatchingMask:NSAnyEventMask untilDate:nil inMode:NSDefaultRunLoopMode dequeue:YES])
 230         {
 231             [NSApp sendEvent:event];
 232         }
 233     }
 234
 235     [NSApp runModalForWindow:m_modalNativeWindow];
 236 }
 237
 238 void wxModalEventLoop::DoStop()
 239 {
 240     [NSApp stopModal];
 241 }
 242