Source Code for Module pyjamas.ui.AbsolutePanel

 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 console 
16  from pyjamas import Factory 
17  from pyjamas import DOM 
18   
19  from ComplexPanel import ComplexPanel 
20   
21 -class AbsolutePanel(ComplexPanel): 
22   
23 -    def __init__(self, **kwargs): 
24          if kwargs.has_key('Element'): 
25              element = kwargs.pop('Element') 
26          else: 
27              element = DOM.createDiv() 
28          self.setElement(element) 
29          DOM.setStyleAttribute(self.getElement(), "position", "relative") 
30          DOM.setStyleAttribute(self.getElement(), "overflow", "hidden") 
31          ComplexPanel.__init__(self, **kwargs) 
32   
33 -    def add(self, widget, left=None, top=None): 
34          ComplexPanel.add(self, widget, self.getElement()) 
35   
36          if left is not None: 
37              self.setWidgetPosition(widget, left, top) 
38   
39 -    def setWidgetPosition(self, widget, left, top): 
40          self.checkWidgetParent(widget) 
41   
42          h = widget.getElement() 
43          if (left == -1) and (top == -1): 
44              DOM.setStyleAttribute(h, "left", "") 
45              DOM.setStyleAttribute(h, "top", "") 
46              DOM.setStyleAttribute(h, "position", "static") 
47          else: 
48              DOM.setStyleAttribute(h, "position", "absolute") 
49              DOM.setStyleAttribute(h, "left", "%dpx" % left) 
50              DOM.setStyleAttribute(h, "top", "%dpx" % top) 
51   
52 -    def getWidgetLeft(self, widget): 
53          self.checkWidgetParent(widget) 
54          return DOM.getIntAttribute(widget.getElement(), "offsetLeft") 
55   
56 -    def getWidgetTop(self, widget): 
57          self.checkWidgetParent(widget) 
58          return DOM.getIntAttribute(widget.getElement(), "offsetTop") 
59   
60 -    def checkWidgetParent(self, widget): 
61          if widget.getParent() != self: 
62              # TODO: raise as exception instead 
63              console.error("Widget must be a child of this panel.") 
64   
65  Factory.registerClass('pyjamas.ui.AbsolutePanel', AbsolutePanel) 
66