Source Code for Module pyjamas.ui.DialogBox

  1  # Copyright 2006 James Tauber and contributors 
  2  # Copyright (C) 2009, 2010 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   
 18  from pyjamas.ui.PopupPanel import PopupPanel 
 19  from pyjamas.ui.HTML import HTML 
 20  from pyjamas.ui.FlexTable import FlexTable 
 21  from pyjamas.ui import HasHorizontalAlignment 
 22  from pyjamas.ui import HasVerticalAlignment 
 23  from pyjamas.ui import GlassWidget 
 24   
 25   
 26 -class DialogBox(PopupPanel): 
 27      _props = [ 
 28          ("caption", "Caption", "HTML", None), 
 29      ] 
 30   
 31 -    def __init__(self, autoHide=None, modal=True, centered=False, 
 32                   **kwargs): 
 33          # Init section 
 34          self.dragging = False 
 35          self.dragStartX = 0 
 36          self.dragStartY = 0 
 37          self.child = None 
 38          self.panel = FlexTable( 
 39              Height="100%", 
 40              BorderWidth="0", 
 41              CellPadding="0", 
 42              CellSpacing="0", 
 43          ) 
 44          cf = self.panel.getCellFormatter() 
 45          cf.setHeight(1, 0, "100%") 
 46          cf.setWidth(1, 0, "100%") 
 47          cf.setAlignment( 
 48              1, 0, 
 49              HasHorizontalAlignment.ALIGN_CENTER, 
 50              HasVerticalAlignment.ALIGN_MIDDLE, 
 51          ) 
 52   
 53          # Arguments section 
 54          self.modal = modal 
 55          self.caption = HTML() 
 56          self.panel.setWidget(0, 0, self.caption) 
 57          self.caption.setStyleName("Caption") 
 58          self.caption.addMouseListener(self) 
 59   
 60          # Finalize 
 61          kwargs['StyleName'] = kwargs.get('StyleName', "gwt-DialogBox") 
 62          PopupPanel.__init__(self, autoHide, modal, **kwargs) 
 63          PopupPanel.setWidget(self, self.panel) 
 64   
 65          self.centered = centered 
 66   
 67 -    def onWindowResized(self, width, height): 
 68          super(DialogBox, self).onWindowResized(width, height) 
 69          if self.centered: 
 70              self.centerBox() 
 71   
 72 -    def show(self): 
 73          super(DialogBox, self).show() 
 74          if self.centered: 
 75              self.centerBox() 
 76   
 77      @classmethod 
 78 -    def _getProps(self): 
 79          return PopupPanel._getProps() + self._props 
 80   
 81 -    def onEventPreview(self, event): 
 82          # preventDefault on mousedown events, outside of the 
 83          # dialog, to stop text-selection on dragging 
 84          type = DOM.eventGetType(event) 
 85          if type == 'mousedown': 
 86              target = DOM.eventGetTarget(event) 
 87              elem = self.caption.getElement() 
 88              event_targets_popup = target and DOM.isOrHasChild(elem, target) 
 89              if event_targets_popup: 
 90                  DOM.eventPreventDefault(event) 
 91          return PopupPanel.onEventPreview(self, event) 
 92   
 93 -    def getHTML(self): 
 94          return self.caption.getHTML() 
 95   
 96 -    def getText(self): 
 97          return self.caption.getText() 
 98   
 99 -    def setHTML(self, html): 
100          self.caption.setHTML(html) 
101   
102 -    def setText(self, text): 
103          self.caption.setText(text) 
104   
105 -    def onMouseDown(self, sender, x, y): 
106          self.dragging = True 
107          GlassWidget.show(self.caption) 
108          self.dragStartX = x 
109          self.dragStartY = y 
110   
111 -    def onMouseEnter(self, sender): 
112          pass 
113   
114 -    def onMouseLeave(self, sender): 
115          pass 
116   
117 -    def onMouseMove(self, sender, x, y): 
118          if not self.dragging: 
119              return 
120          absX = x + self.getAbsoluteLeft() 
121          absY = y + self.getAbsoluteTop() 
122          self.setPopupPosition(absX - self.dragStartX, 
123                                absY - self.dragStartY) 
124   
125 -    def onMouseUp(self, sender, x, y): 
126          self.endDragging() 
127   
128 -    def onMouseGlassEnter(self, sender): 
129          pass 
130   
131 -    def onMouseGlassLeave(self, sender): 
132          self.endDragging() 
133   
134 -    def endDragging(self): 
135          if not self.dragging: 
136              return 
137          self.dragging = False 
138          GlassWidget.hide() 
139   
140 -    def remove(self, widget): 
141          if self.child != widget: 
142              return False 
143   
144          self.panel.remove(widget) 
145          self.child = None 
146          return True 
147   
148 -    def doAttachChildren(self): 
149          PopupPanel.doAttachChildren(self) 
150          self.caption.onAttach() 
151   
152 -    def doDetachChildren(self): 
153          PopupPanel.doDetachChildren(self) 
154          self.caption.onDetach() 
155   
156 -    def setWidget(self, widget): 
157          if self.child is not None: 
158              self.panel.remove(self.child) 
159   
160          if widget is not None: 
161              self.panel.setWidget(1, 0, widget) 
162   
163          self.child = widget 
164   
165  Factory.registerClass('pyjamas.ui.DialogBox', 'DialogBox', DialogBox) 
166