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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/osx/private.h"
34
35// ============================================================================
36// wxEventLoop implementation
37// ============================================================================
38
39wxGUIEventLoop::wxGUIEventLoop()
40{
41 m_sleepTime = 0.0;
42}
43
44void wxGUIEventLoop::WakeUp()
45{
46 extern void wxMacWakeUp();
47
48 wxMacWakeUp();
49}
50
51bool wxGUIEventLoop::Pending() const
52{
53 // a pointer to the event is returned if there is one, or nil if not
54 return [[NSApplication sharedApplication]
55 nextEventMatchingMask: NSAnyEventMask
56 untilDate: nil
57 inMode: NSDefaultRunLoopMode
58 dequeue: NO];
59}
60
61bool wxGUIEventLoop::Dispatch()
62{
63 if ( !wxTheApp )
64 return false;
65
66 wxMacAutoreleasePool autoreleasepool;
67
68 if(NSEvent *event = [NSApp
69 nextEventMatchingMask:NSAnyEventMask
70 untilDate:[NSDate dateWithTimeIntervalSinceNow: m_sleepTime]
71 inMode:NSDefaultRunLoopMode
72 dequeue: YES])
73 {
74 m_sleepTime = 0.0;
75 [NSApp sendEvent: event];
76 }
77 else
78 {
79 if ( wxTheApp->ProcessIdle() )
80 m_sleepTime = 0.0 ;
81 else
82 {
83 m_sleepTime = 1.0;
84#if wxUSE_THREADS
85 wxMutexGuiLeave();
86 wxMilliSleep(20);
87 wxMutexGuiEnter();
88#endif
89 }
90 }
91
92 return true;
93}