Source Code for Module pyjamas.Factory

 1  # Copyright (C) 2009 Luke Kenneth Casson Leighton <lkcl@lkcl.net> 
 2  # 
 3  # Pyjamas Widget Factory.  register widgets with this module, 
 4  # for dynamic use in applications.  please observe namespaces. 
 5  # 
 6  # * pyjamas.ui namespace is used for widgets in library/pyjamas/ui 
 7   
 8  #from __pyjamas__ import doc 
 9  from pyjamas import DOM 
10   
11  factory = {} 
12   
13 -def registerClass(modname, klsname, kls): 
14      global factory 
15      if modname is None: 
16          modname = '.'.join(['pyjamas.ui', klsname]) 
17      name = '.'.join([modname, klsname]) 
18      factory[name] = kls 
19   
20 -def lookupClass(name): 
21      return factory[name] 
22   
23 -def createWidgetOnElement(element): 
24      fc = DOM.getAttribute(element, 'id') 
25      lbr = fc.find("(") 
26      klsname = fc[:lbr] 
27      txtargs = fc[lbr+1:-1] 
28      args = [] 
29      kwargs = {} 
30      for arg in txtargs.split(','): 
31          findeq = arg.find('=') 
32          if findeq == -1: 
33              args.append(arg) 
34          else: 
35              k = arg[:findeq] 
36              v = arg[findeq+1:] 
37              if ((v[0] == "'" and v[-1] == "'") or 
38                  (v[0] == '"' and v[-1] == '"')): 
39                  # string - strip quotes 
40                  v = v[1:-1] 
41              else: 
42                  # assume it's an int 
43                  v = int(v) 
44              kwargs[k] = v 
45   
46      kwargs['Element'] = element 
47      return lookupClass(klsname)(*args, **kwargs) 
48   
49 -def addPyjamasNameSpace(): 
50      doc().createElementNS("urn:schemas-pyjs-org:pyjs") 
51      #try: 
52      #    ns = doc().namespaces.item("pyjs") 
53      #except: 
54      #    doc().namespaces.add("pyjsinit", "urn:schemas-pyjs-org:pyjs") 
55          #doc().createStyleSheet().cssText = "v\\:*{behavior:url(#default#VML);}" 
56