+///////////////////////////////////////////////////////////////////////////////
+// Name: src/osx/core/evtloop_cf.cpp
+// Purpose: wxEventLoop implementation common to both Carbon and Cocoa
+// Author: Vadim Zeitlin
+// Created: 2009-10-18
+// RCS-ID: $Id: wxhead.cpp,v 1.10 2009-06-29 10:23:04 zeitlin Exp $
+// Copyright: (c) 2009 Vadim Zeitlin <vadim@wxwidgets.org>
+// Licence: wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+// for compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+ #pragma hdrstop
+#endif
+
+#include "wx/evtloop.h"
+
+#if wxUSE_EVENTLOOP_SOURCE
+
+#include "wx/evtloopsrc.h"
+
+#include "wx/scopedptr.h"
+
+#include "wx/osx/private.h"
+#include "wx/osx/core/cfref.h"
+
+// ============================================================================
+// wxCFEventLoopSource and wxCFEventLoop implementation
+// ============================================================================
+
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
+namespace
+{
+
+void EnableDescriptorCallBacks(CFFileDescriptorRef cffd, int flags)
+{
+ if ( flags & wxEVENT_SOURCE_INPUT )
+ CFFileDescriptorEnableCallBacks(cffd, kCFFileDescriptorReadCallBack);
+ if ( flags & wxEVENT_SOURCE_OUTPUT )
+ CFFileDescriptorEnableCallBacks(cffd, kCFFileDescriptorWriteCallBack);
+}
+
+void
+wx_cffiledescriptor_callback(CFFileDescriptorRef cffd,
+ CFOptionFlags flags,
+ void *ctxData)
+{
+ wxLogTrace(wxTRACE_EVT_SOURCE,
+ "CFFileDescriptor callback, flags=%d", flags);
+
+ wxCFEventLoopSource * const
+ source = static_cast<wxCFEventLoopSource *>(ctxData);
+
+ wxEventLoopSourceHandler * const
+ handler = source->GetHandler();
+ if ( flags & kCFFileDescriptorReadCallBack )
+ handler->OnReadWaiting();
+ if ( flags & kCFFileDescriptorWriteCallBack )
+ handler->OnWriteWaiting();
+
+ // we need to re-enable callbacks to be called again
+ EnableDescriptorCallBacks(cffd, source->GetFlags());
+}
+
+} // anonymous namespace
+
+wxEventLoopSource *
+wxCFEventLoop::AddSourceForFD(int fd,
+ wxEventLoopSourceHandler *handler,
+ int flags)
+{
+ wxCHECK_MSG( fd != -1, NULL, "can't monitor invalid fd" );
+
+ wxScopedPtr<wxCFEventLoopSource>
+ source(new wxCFEventLoopSource(handler, flags));
+
+ CFFileDescriptorContext ctx = { 0, source.get(), NULL, NULL, NULL };
+ wxCFRef<CFFileDescriptorRef>
+ cffd(CFFileDescriptorCreate
+ (
+ kCFAllocatorDefault,
+ fd,
+ true, // close on invalidate
+ wx_cffiledescriptor_callback,
+ &ctx
+ ));
+ if ( !cffd )
+ return NULL;
+
+ source->SetFileDescriptor(cffd.release());
+
+ wxCFRef<CFRunLoopSourceRef>
+ cfsrc(CFFileDescriptorCreateRunLoopSource(kCFAllocatorDefault, cffd, 0));
+ if ( !cfsrc )
+ return NULL;
+
+ CFRunLoopRef cfloop = CFGetCurrentRunLoop();
+ CFRunLoopAddSource(cfloop, cfsrc, kCFRunLoopDefaultMode);
+
+ return source.release();
+}
+
+void wxCFEventLoopSource::SetFileDescriptor(CFFileDescriptorRef cffd)
+{
+ wxASSERT_MSG( !m_cffd, "shouldn't be called more than once" );
+
+ m_cffd = cffd;
+}
+
+wxCFEventLoopSource::~wxCFEventLoopSource()
+{
+ if ( m_cffd )
+ CFRelease(m_cffd);
+}
+
+#else // OS X < 10.5
+
+wxEventLoopSource *
+wxCFEventLoop::AddSourceForFD(int WXUNUSED(fd),
+ wxEventLoopSourceHandler * WXUNUSED(handler),
+ int WXUNUSED(flags))
+{
+ return NULL;
+}
+
+#endif // MAC_OS_X_VERSION_MAX_ALLOWED
+
+#endif // wxUSE_EVENTLOOP_SOURCE
projects / wxWidgets.git / commitdiff
