Source Code for Package library.pyjamas.dnd

 1  # Copyright (C) 2010 Jim Washington 
 2  # 
 3  # Licensed under the Apache License, Version 2.0 (the "License"); 
 4  # you may not use this file except in compliance with the License. 
 5  # You may obtain a copy of the License at 
 6  # 
 7  #     http://www.apache.org/licenses/LICENSE-2.0 
 8  # 
 9  # Unless required by applicable law or agreed to in writing, software 
10  # distributed under the License is distributed on an "AS IS" BASIS, 
11  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
12  # See the License for the specific language governing permissions and 
13  # limitations under the License. 
14   
15  from pyjamas import DOM 
16   
17 -def makeDraggable(widget): 
18      element = widget.getElement() 
19      DOM.setAttribute(element, 'draggable', True) 
20   
21  PROTECTED = 1 
22  READ_WRITE = 2 
23  READ_ONLY = 3 
24  DISABLED = 4 
25   
26  # getTypes is provided to get around some of the 
27  # various flavors dataTransfer.type objects. 
28   
29 -def getTypes(event): 
30      types = [] 
31      dt = event.dataTransfer 
32      try: 
33          dt_types = dt.types 
34          if isinstance(dt_types, basestring): 
35              return dt_types.split(',') 
36          ct = 0 
37          try: 
38              type_i = dt_types.item(ct) 
39              while type_i: 
40                  types.append(type_i) 
41                  ct += 1 
42                  type_i = dt_types.item(ct) 
43          except: 
44              try: 
45                  type_i = dt_types[ct] 
46                  while type_i: 
47                      types.append(type_i) 
48                      ct += 1 
49                      type_i = dt_types[ct] 
50              except: 
51                  for item in ['Text', 'URL', 'File','HTML', 'Image', 'String']: 
52                      try: 
53                          if len(dt.getData(item)): 
54                              types.append(item) 
55                      except: 
56                          pass 
57      except: 
58          for item in ['Text', 'URL', 'File','HTML', 'Image']: 
59              try: 
60                  if len(dt.getData(item)): 
61                      types.append(item) 
62              except: 
63                  pass 
64      return types 
65