class PanelApp:
""" A generic multiple-panel web application.
This class makes it easy to handle multiple panels within a web
application. Panels are shown as they are required.
"""
def onModuleLoad(self):
""" Dynamically build our user interface when the web page is loaded.
"""
self._curPanelID = None # ID of currently-shown panel.
self._root = RootPanel()
self._panels = self.createPanels()
self.showPanel(self.getDefaultPanel())
def showPanel(self, panelID):
""" Show the panel with the given ID.
"""
if panelID == self._curPanelID: return
if self._curPanelID is not None:
self._root.remove(self._panels[self._curPanelID])
self._root.add(self._panels[panelID])
self._curPanelID = panelID
# ==============================
# == METHODS TO BE OVERRIDDEN ==
# ==============================
def createPanels(self):
""" Create the various panels to be used by this application.
This should be overridden by the subclass to create the various
panels the application will use. Upon completion, the subclass
should return a dictionary mapping the ID to use for each panel to
the panel to be displayed.
"""
Window.alert("Must be overridden.")
def getDefaultPanel(self):
""" Return the ID of the panel to show on system startup.
"""
Window.alert("Must be overridden.")
class PanelApp:
""" A generic multiple-panel web application.
This class makes it easy to handle multiple panels within a web
application. Panels are shown as they are required.
"""
def onModuleLoad(self):
""" Dynamically build our user interface when the web page is loaded.
"""
self._curPanelID = None # ID of currently-shown panel.
self._root = RootPanel()
self._panels = self.createPanels()
self.showPanel(self.getDefaultPanel())
def showPanel(self, panelID):
""" Show the panel with the given ID.
"""
if panelID == self._curPanelID: return
if self._curPanelID is not None:
self._root.remove(self._panels[self._curPanelID])
self._root.add(self._panels[panelID])
self._curPanelID = panelID
# ==============================
# == METHODS TO BE OVERRIDDEN ==
# ==============================
def createPanels(self):
""" Create the various panels to be used by this application.
This should be overridden by the subclass to create the various
panels the application will use. Upon completion, the subclass
should return a dictionary mapping the ID to use for each panel to
the panel to be displayed.
"""
Window.alert("Must be overridden.")
def getDefaultPanel(self):
""" Return the ID of the panel to show on system startup.
"""
Window.alert("Must be overridden.")
