-from Components.HTMLSkin import *
-from Components.GUISkin import *
+from Components.HTMLSkin import HTMLSkin
+from Components.GUISkin import GUISkin
from Components.Sources.Source import Source
-
-import sys
+from Components.GUIComponent import GUIComponent
class Screen(dict, HTMLSkin, GUISkin):
self.skinName = self.__class__.__name__
self.session = session
GUISkin.__init__(self)
-
+
self.onClose = [ ]
self.onFirstExecBegin = [ ]
self.onExecBegin = [ ]
self.onShown = [ ]
-
+
self.onShow = [ ]
self.onHide = [ ]
-
+
self.execing = False
- self.shown = False
+ self.shown = True
+ # already shown is false until the screen is really shown (after creation)
+ self.already_shown = False
+
self.renderer = [ ]
-
+
# in order to support screens *without* a help,
# we need the list in every screen. how ironic.
self.helpList = [ ]
-
+
self.close_on_next_exec = None
+ # stand alone screens (for example web screens)
+ # don't care about having or not having focus.
+ self.stand_alone = False
+
def execBegin(self):
self.active_components = [ ]
if self.close_on_next_exec is not None:
self.onFirstExecBegin = []
for x in self.onExecBegin + single:
x()
- if self.session.current_dialog != self:
+ if not self.stand_alone and self.session.current_dialog != self:
return
# assert self.session == None, "a screen can only exec once per time"
for val in self.values() + self.renderer:
val.execBegin()
- if self.session.current_dialog != self:
+ if not self.stand_alone and self.session.current_dialog != self:
return
self.active_components.append(val)
self.instance.setFocus(o.instance)
def show(self):
- if self.shown:
+ if (self.shown and self.already_shown) or not self.instance:
return
self.shown = True
+ self.already_shown = True
self.instance.show()
for x in self.onShow:
x()
val.onShow()
def hide(self):
- if not self.shown:
+ if not self.shown or not self.instance:
return
self.shown = False
self.instance.hide()