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