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 log 
10  from pyjamas import DOM 
11   
12  factory = {} 
13   
14 -def registerClass(name, kls): 
15      global factory 
16      factory[name] = kls 
17   
18 -def lookupClass(name): 
19      return factory[name] 
20   
21 -def createWidgetOnElement(element): 
22      fc = DOM.getAttribute(element, 'id') 
23      lbr = fc.find("(") 
24      klsname = fc[:lbr] 
25      txtargs = fc[lbr+1:-1] 
26      args = [] 
27      kwargs = {} 
28      for arg in txtargs.split(','): 
29          findeq = arg.find('=') 
30          if findeq == -1: 
31              args.append(arg) 
32          else: 
33              k = arg[:findeq] 
34              v = arg[findeq+1:] 
35              if ((v[0] == "'" and v[-1] == "'") or 
36                  (v[0] == '"' and v[-1] == '"')): 
37                  # string - strip quotes 
38                  v = v[1:-1] 
39              else: 
40                  # assume it's an int 
41                  v = int(v) 
42              kwargs[k] = v 
43   
44      kwargs['Element'] = element 
45      return lookupClass(klsname)(*args, **kwargs) 
46       
47 -def addPyjamasNameSpace(): 
48      doc().createElementNS("urn:schemas-pyjs-org:pyjs") 
49      #try: 
50      #    ns = doc().namespaces.item("pyjs") 
51      #except: 
52      #    doc().namespaces.add("pyjsinit", "urn:schemas-pyjs-org:pyjs") 
53          #doc().createStyleSheet().cssText = "v\\:*{behavior:url(#default#VML);}" 
54