Source Code for Module pyjamas.ui.Focus

 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 pyjd 
16  from pyjamas import DOM 
17  from __pyjamas__ import JS 
18   
19  if not pyjd.is_desktop: 
20      JS(""" 
21      var focusHandler = null; 
22      """) 
23   
24 -def ensureFocusHandler(): 
25      pass 
26   
27 -def createFocusHandler(): 
28      pass 
29   
30 -def createFocusable0(): 
31      pass 
32   
33 -def blur(elem): 
34      elem.blur() 
35   
36 -def createFocusable(): 
37      e = DOM.createDiv() 
38      e.tabIndex = 0 
39      return e 
40   
41 -def focus(elem): 
42      elem.focus() 
43   
44 -def getTabIndex(elem): 
45      return elem.tabIndex 
46   
47 -def setAccessKey(elem, key): 
48      elem.accessKey = key 
49   
50 -def setTabIndex(elem, index): 
51      elem.tabIndex = index 
52   
53   
54 -class FocusMixin: 
55   
56 -    def getTabIndex(self): 
57          return getTabIndex(self.getElement()) 
58   
59 -    def setAccessKey(self, key): 
60          setAccessKey(self.getElement(), key) 
61   
62 -    def setFocus(self, focused): 
63          if (focused): 
64              focus(self.getElement()) 
65          else: 
66              blur(self.getElement()) 
67   
68 -    def setTabIndex(self, index): 
69          setTabIndex(self.getElement(), index) 
70   
71 -    def isEnabled(self): 
72          try: 
73              return not DOM.getBooleanAttribute(self.getElement(), "disabled") 
74          except TypeError: 
75              return True 
76          except AttributeError: 
77              return True 
78   
79 -    def setEnabled(self, enabled): 
80          DOM.setBooleanAttribute(self.getElement(), "disabled", not enabled) 
81   
82 -    def isReadonly(self): 
83          try: 
84              return not DOM.getBooleanAttribute(self.getElement(), "readOnly") 
85          except TypeError: 
86              return True 
87          except AttributeError: 
88              return True 
89   
90 -    def setReadonly(self, readonly): 
91          DOM.setBooleanAttribute(self.getElement(), "readOnly", readonly) 
92