X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1df4b19481c1e4fb26b7395933d65e9fa4a506ec..eb7350290f690dd3e4d92bcf0515027678b3374f:/src/cocoa/evtloop.mm

diff --git a/src/cocoa/evtloop.mm b/src/cocoa/evtloop.mm
index b46b1ffcee..0957eb764b 100644
--- a/src/cocoa/evtloop.mm
+++ b/src/cocoa/evtloop.mm
@@ -11,13 +11,13 @@
 
 #include "wx/wxprec.h"
 
+#include "wx/evtloop.h"
+
 #ifndef WX_PRECOMP
     #include "wx/log.h"
     #include "wx/app.h"
 #endif //WX_PRECOMP
 
-#include "wx/evtloop.h"
-
 #import <AppKit/NSApplication.h>
 #import <AppKit/NSEvent.h>
 #import <Foundation/NSRunLoop.h>
@@ -33,7 +33,7 @@
 int wxGUIEventLoop::Run()
 {
     // event loops are not recursive, you need to create another loop!
-    wxCHECK_MSG( !IsRunning(), -1, _T("can't reenter a message loop") );
+    wxCHECK_MSG( !IsRunning(), -1, wxT("can't reenter a message loop") );
 
     wxEventLoopActivator activate(this);
 
@@ -46,7 +46,7 @@ int wxGUIEventLoop::Run()
 
 void wxGUIEventLoop::Exit(int rc)
 {
-    wxCHECK_RET( IsRunning(), _T("can't call Exit() if not running") );
+    wxCHECK_RET( IsRunning(), wxT("can't call Exit() if not running") );
 
     m_exitcode = rc;
 
@@ -86,7 +86,7 @@ bool wxGUIEventLoop::Dispatch()
 {
     // This check is required by wxGTK but probably not really for wxCocoa
     // Keep it here to encourage developers to write cross-platform code
-    wxCHECK_MSG( IsRunning(), false, _T("can't call Dispatch() if not running") );
+    wxCHECK_MSG( IsRunning(), false, wxT("can't call Dispatch() if not running") );
     NSApplication *cocoaApp = [NSApplication sharedApplication];
     // Block to retrieve an event then send it
     if(NSEvent *event = [cocoaApp
@@ -117,3 +117,61 @@ int wxGUIEventLoop::DispatchTimeout(unsigned long timeout)
     return true;
 }
 
+bool wxGUIEventLoop::YieldFor(long eventsToProcess)
+{
+#if wxUSE_LOG
+    // disable log flushing from here because a call to wxYield() shouldn't
+    // normally result in message boxes popping up &c
+    wxLog::Suspend();
+#endif // wxUSE_LOG
+
+    m_isInsideYield = true;
+    m_eventsToProcessInsideYield = eventsToProcess;
+
+    // Run the event loop until it is out of events
+    while (1)
+    {
+        // TODO: implement event filtering using the eventsToProcess mask
+
+        wxAutoNSAutoreleasePool pool;
+        /*  NOTE: It may be better to use something like
+            NSEventTrackingRunLoopMode since we don't necessarily want all
+            timers/sources/observers to run, only those which would
+            run while tracking events.  However, it should be noted that
+            NSEventTrackingRunLoopMode is in the common set of modes
+            so it may not effectively make much of a difference.
+         */
+        NSEvent *event = [GetNSApplication()
+                nextEventMatchingMask:NSAnyEventMask
+                untilDate:[NSDate distantPast]
+                inMode:NSDefaultRunLoopMode
+                dequeue: YES];
+        if(!event)
+            break;
+        [GetNSApplication() sendEvent: event];
+    }
+
+    /*
+        Because we just told NSApplication to avoid blocking it will in turn
+        run the CFRunLoop with a timeout of 0 seconds.  In that case, our
+        run loop observer on kCFRunLoopBeforeWaiting never fires because
+        no waiting occurs.  Therefore, no idle events are sent.
+
+        Believe it or not, this is actually desirable because we do not want
+        to process idle from here.  However, we do want to process pending
+        events because some user code expects to do work in a thread while
+        the main thread waits and then notify the main thread by posting
+        an event.
+     */
+    if (wxTheApp)
+        wxTheApp->ProcessPendingEvents();
+
+#if wxUSE_LOG
+    // let the logs be flashed again
+    wxLog::Resume();
+#endif // wxUSE_LOG
+
+    m_isInsideYield = false;
+
+    return true;
+}