Add notificationlistener.py

notificationlistener.py

@@ -0,0 +1,42 @@
+#!/usr/bin/env python
+
+# Listen for and dump NSDistributedNotifications
+#
+# Maintainted at https://github.com/liyanage/macosx-shell-scripts
+
+import objc
+import datetime
+import Foundation
+
+class DistributedNotificationListener(object):
+
+    def __init__(self):
+        self.should_terminate = False
+
+    def run(self):
+        center = Foundation.NSDistributedNotificationCenter.defaultCenter()
+        selector = objc.selector(self.didReceiveNotification_, signature='v@:@')
+        center.addObserver_selector_name_object_suspensionBehavior_(self, selector, None, None, Foundation.NSNotificationSuspensionBehaviorDeliverImmediately)
+        runloop = Foundation.NSRunLoop.currentRunLoop()
+
+        while not self.should_terminate:
+            runloop.runUntilDate_(Foundation.NSDate.dateWithTimeIntervalSinceNow_(1))
+
+    def didReceiveNotification_(self, notification):
+        timestamp = datetime.datetime.now().strftime('%Y%m%d-%H%M%S')
+        print '{} name={} userInfo={}'.format(timestamp, notification.name(), notification.userInfo())
+
+    def terminate(self):
+        print 'Stopping'
+        self.should_terminate = True
+
+    @classmethod
+    def main(cls):
+        listener = cls()
+        try:
+            listener.run()
+        except KeyboardInterrupt:
+            listener.terminate()
+
+if __name__ == '__main__':
+    DistributedNotificationListener.main()