Source Code for Module pyjamas.ui.PopupPanel

  1  # Copyright 2006 James Tauber and contributors 
  2  # Copyright (C) 2009 Luke Kenneth Casson Leighton <lkcl@lkcl.net> 
  3  # Copyright (C) 2010 Serge Tarkovski <serge.tarkovski@gmail.com> 
  4  # 
  5  # Licensed under the Apache License, Version 2.0 (the "License"); 
  6  # you may not use this file except in compliance with the License. 
  7  # You may obtain a copy of the License at 
  8  # 
  9  #     http://www.apache.org/licenses/LICENSE-2.0 
 10  # 
 11  # Unless required by applicable law or agreed to in writing, software 
 12  # distributed under the License is distributed on an "AS IS" BASIS, 
 13  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 14  # See the License for the specific language governing permissions and 
 15  # limitations under the License. 
 16  from pyjamas import DOM 
 17  from pyjamas import Window 
 18  from pyjamas import Factory 
 19  from __pyjamas__ import JS, doc 
 20  from SimplePanel import SimplePanel 
 21  from RootPanel import RootPanel 
 22  from pyjamas.ui import MouseListener 
 23  from pyjamas.ui import KeyboardListener 
 24   
 25 -class PopupPanel(SimplePanel): 
 26 -    def __init__(self, autoHide=False, modal=True, rootpanel=None, glass=False, **kwargs): 
 27   
 28          self.popupListeners = [] 
 29          self.showing = False 
 30          self.autoHide = autoHide 
 31          self.modal = modal 
 32   
 33          self.glass = glass 
 34          if self.glass: 
 35              self.glass = DOM.createDiv() 
 36              if not 'GlassStyleName' in kwargs: 
 37                  kwargs['GlassStyleName'] = "gwt-PopupPanelGlass" 
 38   
 39          if rootpanel is None: 
 40              rootpanel = RootPanel() 
 41   
 42          self.rootpanel = rootpanel 
 43   
 44          if kwargs.has_key('Element'): 
 45              element = kwargs.pop('Element') 
 46          else: 
 47              element = self.createElement() 
 48          DOM.setStyleAttribute(element, "position", "absolute") 
 49   
 50          SimplePanel.__init__(self, element, **kwargs) 
 51   
 52 -    def addPopupListener(self, listener): 
 53          self.popupListeners.append(listener) 
 54   
 55 -    def getPopupLeft(self): 
 56          return DOM.getIntAttribute(self.getElement(), "offsetLeft") 
 57   
 58 -    def getPopupTop(self): 
 59          return DOM.getIntAttribute(self.getElement(), "offsetTop") 
 60   
 61      # PopupImpl.createElement 
 62 -    def createElement(self): 
 63          return DOM.createDiv() 
 64   
 65 -    def hide(self, autoClosed=False): 
 66          if not self.showing: 
 67              return 
 68          self.showing = False 
 69   
 70          if self.glass: 
 71              self.hideGlass() 
 72   
 73          DOM.removeEventPreview(self) 
 74   
 75          self.rootpanel.remove(self) 
 76          self.onHideImpl(self.getElement()) 
 77          for listener in self.popupListeners: 
 78              if hasattr(listener, 'onPopupClosed'): listener.onPopupClosed(self, autoClosed) 
 79              else: listener(self, autoClosed) 
 80   
 81 -    def isModal(self): 
 82          return self.modal 
 83   
 84 -    def _event_targets_popup(self, event): 
 85          target = DOM.eventGetTarget(event) 
 86          return target and DOM.isOrHasChild(self.getElement(), target) 
 87   
 88 -    def onEventPreview(self, event): 
 89          type = DOM.eventGetType(event) 
 90          if type == "keydown": 
 91              return (    self.onKeyDownPreview( 
 92                              DOM.eventGetKeyCode(event), 
 93                              KeyboardListener.getKeyboardModifiers(event) 
 94                              ) 
 95                      and (not self.modal or self._event_targets_popup(event)) 
 96                     ) 
 97          elif type == "keyup": 
 98              return (    self.onKeyUpPreview( 
 99                              DOM.eventGetKeyCode(event), 
100                              KeyboardListener.getKeyboardModifiers(event) 
101                              ) 
102                      and (not self.modal or self._event_targets_popup(event)) 
103                     ) 
104          elif type == "keypress": 
105              return (    self.onKeyPressPreview( 
106                              DOM.eventGetKeyCode(event), 
107                              KeyboardListener.getKeyboardModifiers(event) 
108                              ) 
109                      and (not self.modal or self._event_targets_popup(event)) 
110                     ) 
111          elif (   type == "mousedown" 
112                or type == "blur" 
113               ): 
114              if DOM.getCaptureElement() is not None: 
115                  return True 
116              if self.autoHide and not self._event_targets_popup(event): 
117                  self.hide(True) 
118                  return True 
119          elif (   type == "mouseup" 
120                or type == "click" 
121                or type == "mousemove" 
122                or type == "dblclick" 
123               ): 
124              if DOM.getCaptureElement() is not None: 
125                  return True 
126          return not self.modal or self._event_targets_popup(event) 
127   
128 -    def onKeyDownPreview(self, key, modifiers): 
129          return True 
130   
131 -    def onKeyPressPreview(self, key, modifiers): 
132          return True 
133   
134 -    def onKeyUpPreview(self, key, modifiers): 
135          return True 
136   
137      # PopupImpl.onHide 
138 -    def onHideImpl(self, popup): 
139          pass 
140   
141      # PopupImpl.onShow 
142 -    def onShowImpl(self, popup): 
143          pass 
144   
145 -    def removePopupListener(self, listener): 
146          self.popupListeners.remove(listener) 
147   
148 -    def setPopupPosition(self, left, top): 
149          if left < 0: 
150              left = 0 
151          if top < 0: 
152              top = 0 
153   
154          # Account for the difference between absolute position and the 
155          # body's positioning context. 
156          left -= DOM.getBodyOffsetLeft() 
157          top -= DOM.getBodyOffsetTop() 
158   
159          element = self.getElement() 
160          DOM.setStyleAttribute(element, "left", "%dpx" % left) 
161          DOM.setStyleAttribute(element, "top", "%dpx" % top) 
162   
163 -    def setGlassStyleName(self, style="gwt-PopupPanelGlass"): 
164          if self.glass: 
165              DOM.setAttribute(self.glass, "className", style) 
166   
167 -    def setGlassPosition(self): 
168          top = Window.getScrollTop() 
169          left = Window.getScrollLeft() 
170          height = Window.getClientHeight() 
171          width = Window.getClientWidth() 
172   
173          DOM.setStyleAttribute(self.glass, "position", "absolute") 
174          DOM.setStyleAttribute(self.glass, "left", "%s" % left if left == 0 else "%spx" % left) 
175          DOM.setStyleAttribute(self.glass, "top", "%s" % top if top == 0 else "%spx" % top) 
176          DOM.setStyleAttribute(self.glass, "height", "%spx" % (top + height)) 
177          DOM.setStyleAttribute(self.glass, "width", "%spx" % (left + width)) 
178   
179 -    def showGlass(self): 
180          Window.enableScrolling(False) 
181          self.setGlassPosition() 
182          doc().body.appendChild(self.glass) 
183          Window.addWindowResizeListener(self) 
184   
185 -    def hideGlass(self): 
186          Window.removeWindowResizeListener(self) 
187          doc().body.removeChild(self.glass) 
188          Window.enableScrolling(True) 
189   
190 -    def onWindowResized(self, width, height): 
191          self.setGlassPosition() 
192   
193 -    def show(self): 
194          if self.showing: 
195              return 
196   
197          self.showing = True 
198   
199          if self.glass: 
200              self.showGlass() 
201   
202          DOM.addEventPreview(self) 
203   
204          self.rootpanel.add(self) 
205          self.onShowImpl(self.getElement()) 
206   
207  Factory.registerClass('pyjamas.ui.PopupPanel', PopupPanel) 
208