Added dopendingevents call

Added asyncevents call to enable asynchronous event handling

diff --git a/Mac/Lib/FrameWork.py b/Mac/Lib/FrameWork.py
index caaf81cc37df05bf079b03d5d9e57f85960d3ccd..fc643e4dedf6163f1a267b0e97b1c154de70d789 100644 (file)
--- a/Mac/Lib/FrameWork.py
+++ b/Mac/Lib/FrameWork.py
@@ -95,6 +95,7 @@ class Application:
        "Application framework -- your application should be a derived class"
        
        def __init__(self, nomenubar=0):
+               self._doing_asyncevents = 0
                self.quitting = 0
                self.needmenubarredraw = 0
                self._windows = {}
@@ -102,6 +103,11 @@ class Application:
                        self.menubar = None
                else:
                        self.makemenubar()
+                       
+       def __del__(self):
+               if self._doing_asyncevents:
+                       self._doing_asyncevents = 0
+                       MacOS.SetEventHandler()
        
        def makemenubar(self):
                self.menubar = MenuBar(self)
@@ -158,6 +164,11 @@ class Application:
        
        schedparams = MacOS.SchedParams()
        
+       def dopendingevents(self, mask = everyEvent):
+               """dopendingevents - Handle all pending events"""
+               while self.do1event(mask, wait=0):
+                       pass
+       
        def do1event(self, mask = everyEvent, wait = 0):
                ok, event = self.getevent(mask, wait)
                if IsDialogEvent(event):
@@ -179,6 +190,11 @@ class Application:
                return ok, event
                        
        def dispatch(self, event):
+               # The following appears to be double work (already done in do1event)
+               # but we need it for asynchronous event handling
+               if IsDialogEvent(event):
+                       if self.do_dialogevent(event):
+                               return
                (what, message, when, where, modifiers) = event
                if eventname.has_key(what):
                        name = "do_" + eventname[what]
@@ -190,6 +206,21 @@ class Application:
                        handler = self.do_unknownevent
                handler(event)
                
+       def asyncevents(self, onoff):
+               """asyncevents - Set asynchronous event handling on or off"""
+               old = self._doing_asyncevents
+               if old:
+                       MacOS.SetEventHandler()
+                       apply(MacOS.SchedParams, self.schedparams)
+               if onoff:
+                       MacOS.SetEventHandler(self.dispatch)
+                       doint, dummymask, benice, howoften, bgyield = \
+                              self.schedparams
+                       MacOS.SchedParams(doint, everyEvent, benice,
+                                         howoften, bgyield)
+               self._doing_asyncevents = onoff
+               return old
+                       
        def do_dialogevent(self, event):
                gotone, window, item = DialogSelect(event)
                if gotone: