Source Code for Module pyjamas.ui.HTMLPanel

 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 Factory 
17  from pyjamas.ui import InnerHTML 
18   
19  from ComplexPanel import ComplexPanel 
20   
21  HTMLPanel_sUid = 0 
22   
23 -def getElementsByTagName(element, tagname): 
24      try: 
25          element_tagname = element.nodeName # DOM.getAttribute(element, "nodeName") 
26          element_tagname = str(element_tagname).lower() 
27      except: 
28          element_tagname = None 
29      if element_tagname is not None and element_tagname == tagname: 
30          return [element] 
31   
32      res = [] 
33      child = DOM.getFirstChild(element) 
34      while child is not None: 
35          for el in getElementsByTagName(child, tagname): 
36              res.append(el) 
37          child = DOM.getNextSibling(child) 
38   
39      return res 
40   
41 -def getElementById(element, id): 
42      try: 
43          element_id = DOM.getAttribute(element, "id") 
44      except: 
45          element_id = None 
46      if element_id is not None and element_id == id: 
47          return element 
48   
49      child = DOM.getFirstChild(element) 
50      while child is not None: 
51          ret = getElementById(child, id) 
52          if ret is not None: 
53              return ret 
54          child = DOM.getNextSibling(child) 
55   
56      return None 
57   
58   
59 -class HTMLPanel(ComplexPanel, InnerHTML): 
60 -    def __init__(self, html, **kwargs): 
61          # NOTE! don't set a default style on this panel, because the 
62          # HTML might expect to have one already. 
63          #if not kwargs.has_key('StyleName'): kwargs['StyleName']="gwt-HTMLPanel" 
64          if html: kwargs['HTML'] = html 
65          if kwargs.has_key('Element'): 
66              element = kwargs.pop('Element') 
67          else: 
68              element = DOM.createDiv() 
69          self.setElement(element) 
70          ComplexPanel.__init__(self, **kwargs) 
71   
72 -    def add(self, widget, id): 
73          element = getElementById(self.getElement(), id) 
74          if element is None: 
75              # throw new NoSuchElementException() 
76              return 
77          ComplexPanel.add(self, widget, element) 
78   
79 -    def findTags(self, tagname): 
80          return getElementsByTagName(self.getElement(), tagname) 
81   
82      @staticmethod 
83 -    def createUniqueId(): 
84          global HTMLPanel_sUid 
85   
86          HTMLPanel_sUid += 1 
87          return "HTMLPanel_%d" % HTMLPanel_sUid 
88   
89  Factory.registerClass('pyjamas.ui.HTMLPanel', HTMLPanel) 
90