[EMAIL PROTECTED] schrieb:
Hi all, I'm having some issues getting a spotlight search to work similar to the program demonstrated here: http://pyobjc.sourceforge.net/examples/pyobjc-framework-Cocoa/AppKit/PredicateEditorSample/Here is my class, complete with the code I am trying to use it with at the end. import objc, sys, os, osax, time from Foundation import * from ScriptingBridge import * from appscript import * class SystemBridge(NSObject): """Class to use the scripting bridge to interact with the system""" _hideapp = objc.ivar(u"hideapp") _volume = objc.ivar(u"volume") _filename = objc.ivar(u"filename") _filetype = objc.ivar(u"filetype") _auth = objc.ivar(u"auth") _logout = objc.ivar(u"logout") query = objc.ivar(u"query") StdAdditions = osax.ScriptingAddition() def init(self): super(SystemBridge, self).init() # create and initalize our query self.query = NSMetadataQuery.alloc().init() # setup our Spotlight notifications nf = NSNotificationCenter.defaultCenter() nf.addObserver_selector_name_object_(self, 'queryNotification:', None, self.query) # XXX: this framework isn't wrapped yet!self.query.setSortDescriptors_([NSSortDescriptor.alloc().initWithKey_ascending_('kMDItemDisplayName',True)]) self.query.setDelegate_(self) return self def hideApplication_(self, _hideapp): app(u'System Events').processes[_hideapp].visible.set(False) def loadResultsFromQuery_(self, notif): results = notif.object().results() NSLog("search count = %d", len(results)) # iterate through the array of results, and match to the existing stores for item in results: nameStr = item.valueForAttribute_('kMDItemDisplayName') print nameStr def queryNotification_(self, note): # the NSMetadataQuery will send back a note when updates are happening. # By looking at the [note name], we can tell what is happening if note.name() == NSMetadataQueryDidStartGatheringNotification: # the query has just started NSLog("search: started gathering") elif note.name() == NSMetadataQueryDidFinishGatheringNotification: # at this point, the query will be done. You may recieve an update # later on. NSLog("search: finished gathering"); self.loadResultsFromQuery_(note) elif note.name() == NSMetadataQueryGatheringProgressNotification: # the query is still gathering results... NSLog("search: progressing...") elif note.name() == NSMetadataQueryDidUpdateNotification: # an update will happen when Spotlight notices that a file as # added, removed, or modified that affected the search results. NSLog("search: an update happened.") def spotlightFriendlyPredicate_(self, predicate): if predicate == NSPredicate.predicateWithValue_(True) or predicate == NSPredicate.predicateWithValue_(False): return False elif isinstance(predicate, NSCompoundPredicate): type = predicate.compoundPredicateType() cleanSubpredicates = [] for dirtySubpredicate in predicate.subpredicates(): cleanSubpredicate = self.spotlightFriendlyPredicate_( dirtySubpredicate) if cleanSubpredicate: cleanSubpredicates.append(cleanSubpredicate) if len(cleanSubpredicates) == 0: return None else: if len(cleanSubpredicates) == 1 and type != NSNotPredicateType: return cleanSubpredicates[0] else: return NSCompoundPredicate.alloc().initWithType_subpredicates_(type, cleanSubpredicates) else: return predicate def createNewSearchForPredicate_(self, predicate): # Format search file type thePredicate = NSPredicate.predicateWithFormat_( "(kMDItemContentType = 'com.apple.iwork.keynote.key')") tempPredicate = NSPredicate.predicateWithFormat_( "(kMDItemDisplayName IN[c] 'preso')") predicate = NSCompoundPredicate.andPredicateWithSubpredicates_( [thePredicate, tempPredicate]) self.query.setPredicate_(predicate) self.query.startQuery() def changeVolume_(self, setvolume): self.StdAdditions.set_volume(output_volume=setvolume) def getVolume_(self): return StdAdditions.get_volume_settings()[k.output_volume] _x = SystemBridge.alloc().init() #predicate = u"kMDItemDisplayName IN[c] 'preso'" #predicate = _x.spotlightFriendlyPredicate_(predicate) if predicate is not None: _x.createNewSearchForPredicate_(predicate) As you can see, I am trying to use a notifier just like the example linked above. The class does not work as expected, and just displays "search: started gathering", none of the other notifier events happen at all! Have I missed something out translating this to PyObjC? The weird thing is, most of that code is straight from the example which works fine, so I can't figure out why mine won't work! Any help would be hugely appreciated, I need to get this finished soon!
I can only imagine that you need an event-loop to make notifications work. That's usually needed under OS X.
Diez -- http://mail.python.org/mailman/listinfo/python-list
