Source Code for Module pyjamas.ui.RootPanel

 1  # Copyright 2006 James Tauber and contributors 
 2  # Copyright (C) 2009 Luke Kenneth Casson Leighton <lkcl@lkcl.net> 
 3  # 
 4  # Licensed under the Apache License, Version 2.0 (the "License"); 
 5  # you may not use this file except in compliance with the License. 
 6  # You may obtain a copy of the License at 
 7  # 
 8  #     http://www.apache.org/licenses/LICENSE-2.0 
 9  # 
10  # Unless required by applicable law or agreed to in writing, software 
11  # distributed under the License is distributed on an "AS IS" BASIS, 
12  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
13  # See the License for the specific language governing permissions and 
14  # limitations under the License. 
15  import sys 
16  from __pyjamas__ import doc 
17  from pyjamas import Factory 
18   
19  from pyjamas import DOM 
20  from pyjamas import Window 
21   
22  from AbsolutePanel import AbsolutePanel 
23   
24  rootPanels = {} 
25 -class RootPanelManager(object): 
26   
27 -    def onWindowClosed(self): 
28          global rootPanels 
29          for panel in rootPanels.itervalues(): 
30              panel.onDetach() 
31   
32 -    def onWindowClosing(self): 
33          return None 
34   
35 -def get(id=None): 
36      """ 
37   
38      """ 
39      if rootPanels.has_key(id): 
40          return rootPanels[id] 
41   
42      element = None 
43      if id: 
44          element = DOM.getElementById(id) 
45          if not element: 
46              return None 
47   
48      return manageRootPanel(RootPanelCls(element), id) 
49   
50 -def manageRootPanel(panel, id=None): 
51   
52      if len(rootPanels) < 1: 
53          panelManager = RootPanelManager() 
54          Window.addWindowCloseListener(panelManager) 
55   
56      rootPanels[id] = panel 
57      return panel 
58   
59 -class RootPanelCls(AbsolutePanel): 
60 -    def __init__(self, Element=None, **kwargs): 
61          if Element: 
62              kwargs['Element'] = Element 
63          AbsolutePanel.__init__(self, **kwargs) 
64          if Element is None: 
65              # avoid having CSS styles position:relative and hidden set on body 
66              Element = self.getBodyElement() 
67              self.setElement(Element) 
68          self.onAttach() 
69   
70 -    def getBodyElement(self): 
71          return doc().body 
72   
73  Factory.registerClass('pyjamas.ui.RootPanelCls', RootPanelCls) 
74   
75 -def RootPanel(id=None): 
76      return get(id) 
77