Source Code for Module pyjamas.ui.PopupPanel

  1  # Copyright 2006 James Tauber and contributors 
  2  # Copyright (C) 2009, 2010 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 pyjamas.ui.SimplePanel import SimplePanel 
 21  from pyjamas.ui.RootPanel import RootPanel 
 22  from pyjamas.ui import MouseListener 
 23  from pyjamas.ui import KeyboardListener 
 24   
 25   
 26 -class PopupPanel(SimplePanel): 
 27   
 28      _props = [("modal", "Modal", "Modal", None), 
 29              ] 
 30   
 31 -    def __init__(self, autoHide=False, modal=True, rootpanel=None, glass=False, 
 32                  **kwargs): 
 33   
 34          self.popupListeners = [] 
 35          self.showing = False 
 36          self.autoHide = autoHide 
 37          kwargs['Modal'] = kwargs.get('Modal', modal) 
 38   
 39          if rootpanel is None: 
 40              rootpanel = RootPanel() 
 41          self.rootpanel = rootpanel 
 42   
 43          self.glass = glass 
 44          if self.glass: 
 45              self.glass = DOM.createDiv() 
 46              if not 'GlassStyleName' in kwargs: 
 47                  kwargs['GlassStyleName'] = "gwt-PopupPanelGlass" 
 48   
 49          if kwargs.has_key('Element'): 
 50              element = kwargs.pop('Element') 
 51          else: 
 52              element = self.createElement() 
 53          DOM.setStyleAttribute(element, "position", "absolute") 
 54   
 55          SimplePanel.__init__(self, element, **kwargs) 
 56   
 57          if glass: 
 58              self.setGlassEnabled(True) 
 59              if 'GlassStyleName' in kwargs: 
 60                  self.setGlassStyleName(kwargs.pop('GlassStyleName')) 
 61   
 62   
 63   
 64      @classmethod 
 65 -    def _getProps(self): 
 66          return SimplePanel._getProps() + self._props 
 67   
 68 -    def addPopupListener(self, listener): 
 69          self.popupListeners.append(listener) 
 70   
 71 -    def getPopupLeft(self): 
 72          return DOM.getIntAttribute(self.getElement(), "offsetLeft") 
 73   
 74 -    def getPopupTop(self): 
 75          return DOM.getIntAttribute(self.getElement(), "offsetTop") 
 76   
 77      # PopupImpl.createElement 
 78 -    def createElement(self): 
 79          return DOM.createDiv() 
 80   
 81 -    def hide(self, autoClosed=False): 
 82          if not self.showing: 
 83              return 
 84          self.showing = False 
 85   
 86          if self.glass: 
 87              self.hideGlass() 
 88   
 89          DOM.removeEventPreview(self) 
 90   
 91          self.rootpanel.remove(self) 
 92          self.onHideImpl(self.getElement()) 
 93          for listener in self.popupListeners: 
 94              if hasattr(listener, 'onPopupClosed'): 
 95                  listener.onPopupClosed(self, autoClosed) 
 96              else: 
 97                  listener(self, autoClosed) 
 98   
 99 -    def setModal(self, modal): 
100          self.modal = modal 
101   
102 -    def getModal(self): 
103          return self.isModal() 
104   
105 -    def isModal(self): 
106          """ deprecated - please use getModal 
107          """ 
108          return self.modal 
109   
110 -    def _event_targets_popup(self, event): 
111          target = DOM.eventGetTarget(event) 
112          return target and DOM.isOrHasChild(self.getElement(), target) 
113   
114 -    def onEventPreview(self, event): 
115          etype = DOM.eventGetType(event) 
116          if etype == "keydown": 
117              return (    self.onKeyDownPreview( 
118                              DOM.eventGetKeyCode(event), 
119                              KeyboardListener.getKeyboardModifiers(event) 
120                              ) 
121                      and (not self.modal or self._event_targets_popup(event)) 
122                     ) 
123          elif etype == "keyup": 
124              return (    self.onKeyUpPreview( 
125                              DOM.eventGetKeyCode(event), 
126                              KeyboardListener.getKeyboardModifiers(event) 
127                              ) 
128                      and (not self.modal or self._event_targets_popup(event)) 
129                     ) 
130          elif etype == "keypress": 
131              return (    self.onKeyPressPreview( 
132                              DOM.eventGetKeyCode(event), 
133                              KeyboardListener.getKeyboardModifiers(event) 
134                              ) 
135                      and (not self.modal or self._event_targets_popup(event)) 
136                     ) 
137          elif (   etype == "mousedown" 
138                or etype == "blur" 
139               ): 
140              if DOM.getCaptureElement() is not None: 
141                  return True 
142              if self.autoHide and not self._event_targets_popup(event): 
143                  self.hide(True) 
144                  return True 
145          elif (   etype == "mouseup" 
146                or etype == "click" 
147                or etype == "mousemove" 
148                or type == "dblclick" 
149               ): 
150              if DOM.getCaptureElement() is not None: 
151                  return True 
152          return not self.modal or self._event_targets_popup(event) 
153   
154 -    def onKeyDownPreview(self, key, modifiers): 
155          return True 
156   
157 -    def onKeyPressPreview(self, key, modifiers): 
158          return True 
159   
160 -    def onKeyUpPreview(self, key, modifiers): 
161          return True 
162   
163      # PopupImpl.onHide 
164 -    def onHideImpl(self, popup): 
165          pass 
166   
167      # PopupImpl.onShow 
168 -    def onShowImpl(self, popup): 
169          pass 
170   
171 -    def removePopupListener(self, listener): 
172          self.popupListeners.remove(listener) 
173   
174 -    def setPopupPosition(self, left, top): 
175          if isinstance(left, basestring): 
176              if left.endswith('%'): 
177                  left = int(left[:-1]) 
178                  left = int(left * Window.getClientWidth() / 100) 
179              elif left.lower().endswith('px'): 
180                  left = int(left[:-2]) 
181          if isinstance(top, basestring): 
182              if top.lower().endswith('%'): 
183                  top = int(top[:-1]) 
184                  top = int(top * Window.getClientHeight() / 100) 
185              elif top.endswith('px'): 
186                  top = int(top[:-2]) 
187   
188          left = max(left, 0) 
189          top = max(top, 0) 
190   
191          # Account for the difference between absolute position and the 
192          # body's positioning context. 
193          left -= DOM.getBodyOffsetLeft() 
194          top -= DOM.getBodyOffsetTop() 
195   
196          element = self.getElement() 
197          DOM.setStyleAttribute(element, "left", "%dpx" % left) 
198          DOM.setStyleAttribute(element, "top", "%dpx" % top) 
199   
200 -    def isGlassEnabled(self): 
201          return self.glass is not None 
202   
203 -    def setGlassEnabled(self, enabled): 
204          if enabled: 
205              if self.glass is None: 
206                  self.glass = DOM.createDiv() 
207                  self.setGlassStyleName() 
208          elif self.glass is not None: 
209              self.hideGlass() 
210   
211 -    def getGlassElement(self): 
212          return self.glass 
213   
214 -    def setGlassStyleName(self, style="gwt-PopupPanelGlass"): 
215          if self.glass: 
216              DOM.setAttribute(self.glass, "className", style) 
217   
218 -    def getGlassStyleName(self): 
219          if self.glass: 
220              return DOM.setAttribute(self.glass, "className") 
221   
222 -    def setGlassPosition(self): 
223          top = Window.getScrollTop() 
224          left = Window.getScrollLeft() 
225          height = Window.getClientHeight() 
226          width = Window.getClientWidth() 
227   
228          DOM.setStyleAttribute(self.glass, "position", "absolute") 
229          DOM.setStyleAttribute(self.glass, "left", "%s" % \ 
230                                left if left == 0 else "%spx" % left) 
231          DOM.setStyleAttribute(self.glass, "top", "%s" % \ 
232                                top if top == 0 else "%spx" % top) 
233          DOM.setStyleAttribute(self.glass, "height", "%spx" % (top + height)) 
234          DOM.setStyleAttribute(self.glass, "width", "%spx" % (left + width)) 
235   
236 -    def showGlass(self): 
237          Window.enableScrolling(False) 
238          self.setGlassPosition() 
239          doc().body.appendChild(self.glass) 
240          Window.addWindowResizeListener(self) 
241   
242 -    def hideGlass(self): 
243          Window.removeWindowResizeListener(self) 
244          doc().body.removeChild(self.glass) 
245          Window.enableScrolling(True) 
246   
247 -    def onWindowResized(self, width, height): 
248          self.setGlassPosition() 
249   
250 -    def centerBox(self): 
251          self_width = self.getOffsetWidth() 
252          self_height = self.getOffsetHeight() 
253   
254          height = Window.getClientHeight() 
255          width = Window.getClientWidth() 
256   
257          center_x = int(width) / 2 
258          center_y = int(height) / 2 
259   
260          self_top  = center_y - (int(self_height) / 2) 
261          self_left = center_x - (int(self_width)  / 2) 
262   
263          self.setPopupPosition(self_left, self_top) 
264   
265 -    def center(self): 
266          self.centerBox() 
267          self.show() 
268   
269 -    def add(self, widget): 
270          self.setWidget(widget) 
271   
272 -    def show(self): 
273          if self.showing: 
274              return 
275   
276          self.showing = True 
277   
278          if self.glass: 
279              self.showGlass() 
280   
281          DOM.addEventPreview(self) 
282   
283          self.rootpanel.add(self) 
284          self.onShowImpl(self.getElement()) 
285   
286  Factory.registerClass('pyjamas.ui.PopupPanel', 'PopupPanel', PopupPanel) 
287