Source Code for Module appModules.itunes

 1  import appModuleHandler 
 2  from comtypes import COMError 
 3  import controlTypes 
 4  import oleacc 
 5  import NVDAObjects.IAccessible 
 6   
 7 -class AppModule(appModuleHandler.AppModule): 
 8   
 9 -        def event_NVDAObject_init(self,obj): 
10                  if isinstance(obj,NVDAObjects.IAccessible.IAccessible): 
11                          obj.shouldAllowIAccessibleFocusEvent=True 
12                          if obj.windowClassName=="WebViewWindowClass": 
13                                  if obj.IAccessibleRole==oleacc.ROLE_SYSTEM_WINDOW: 
14                                          #Disable a safety mechonism in our IAccessible support as in iTunes it causes an infinit ancestry. 
15                                          obj.parentUsesSuperOnWindowRootIAccessible=False 
16                                  else: 
17                                          obj.hasEncodedAccDescription=True 
18   
19 -        def chooseNVDAObjectOverlayClasses(self, obj, clsList): 
20                  windowClassName=obj.windowClassName 
21                  role=obj.role 
22                  if windowClassName in ('iTunesSources','iTunesTrackList') and role in (controlTypes.ROLE_LISTITEM,controlTypes.ROLE_TREEVIEWITEM): 
23                          clsList.insert(0, ITunesItem) 
24   
25 -class ITunesItem(NVDAObjects.IAccessible.IAccessible): 
26          """Retreaves position information encoded in the accDescription""" 
27   
28          hasEncodedAccDescription=True 
29          value = None 
30   
31 -        def _get_next(self): 
32                  next=super(ITunesItem,self).next 
33                  try: 
34                          parentChildCount=self.IAccessibleObject.accParent.accChildCount 
35                  except COMError: 
36                          parentChildCount=0 
37                  if not next and self.IAccessibleChildID>0 and self.IAccessibleChildID<parentChildCount: 
38                          next=NVDAObjects.IAccessible.IAccessible(windowHandle=self.windowHandle,IAccessibleObject=self.IAccessibleObject,IAccessibleChildID=self.IAccessibleChildID+1) 
39                  return next 
40   
41 -        def _get_previous(self): 
42                  previous=super(ITunesItem,self).previous 
43                  if not previous and self.IAccessibleChildID>1: 
44                          previous=NVDAObjects.IAccessible.IAccessible(windowHandle=self.windowHandle,IAccessibleObject=self.IAccessibleObject,IAccessibleChildID=self.IAccessibleChildID-1) 
45                  return previous 
46