1 from Components.HTMLSkin import *
2 from Components.GUISkin import *
3 from Components.Sources.Source import Source
7 class Screen(dict, HTMLSkin, GUISkin):
11 def __init__(self, session):
12 self.skinName = self.__class__.__name__
13 self.session = session
14 GUISkin.__init__(self)
17 self.onFirstExecBegin = [ ]
18 self.onExecBegin = [ ]
29 # in order to support screens *without* a help,
30 # we need the list in every screen. how ironic.
34 self.active_components = [ ]
36 single = self.onFirstExecBegin
37 self.onFirstExecBegin = []
38 for x in self.onExecBegin + single:
40 if self.session.current_dialog != self:
43 # assert self.session == None, "a screen can only exec once per time"
44 # self.session = session
46 for val in self.values() + self.renderer:
48 if self.session.current_dialog != self:
50 self.active_components.append(val)
54 for x in self.onShown:
58 # for (name, val) in self.items():
59 for val in self.active_components:
61 del self.active_components
62 # assert self.session != None, "execEnd on non-execing screen!"
66 # never call this directly - it will be called from the session!
69 for x in self.onClose:
72 # fixup circular references
76 # first disconnect all render from their sources.
77 # we might split this out into a "unskin"-call,
78 # but currently we destroy the screen afterwards
80 for val in self.renderer:
81 val.disconnectAll() # disconnected converter/sources and probably destroy them
84 for (name, val) in self.items():
88 for val in self.renderer:
93 # really delete all elements now
96 def close(self, *retval):
97 self.session.close(self, *retval)
99 def setFocus(self, o):
100 self.instance.setFocus(o.instance)
107 for x in self.onShow:
109 for val in self.values() + self.renderer:
110 if isinstance(val, GUIComponent) or isinstance(val, Source):
118 for x in self.onHide:
120 for val in self.values() + self.renderer:
121 if isinstance(val, GUIComponent) or isinstance(val, Source):
125 return str(type(self))