X-Git-Url: https://git.cweiske.de/enigma2.git/blobdiff_plain/3c91232d1ade05d5b7bd393ec41c1673c80b8f45..32027c3eaa6b04ce081640ef89a73a93081aea85:/lib/python/Screens/Screen.py

diff --git a/lib/python/Screens/Screen.py b/lib/python/Screens/Screen.py
index 060270b1..46b94fd4 100644
--- a/lib/python/Screens/Screen.py
+++ b/lib/python/Screens/Screen.py
@@ -5,47 +5,65 @@ from Components.Sources.Source import Source
 import sys
 
 class Screen(dict, HTMLSkin, GUISkin):
-	""" bla """
+
+	ALLOW_SUSPEND = False
 
 	def __init__(self, session):
 		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.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 = [ ]
-		for x in self.onExecBegin:
-			x()
-			if self.session.current_dialog != self:
-				return
+		if self.close_on_next_exec is not None:
+			tmp = self.close_on_next_exec
+			self.close_on_next_exec = None
+			self.execing = True
+			self.close(tmp)
+		else:
+			single = self.onFirstExecBegin
+			self.onFirstExecBegin = []
+			for x in self.onExecBegin + single:
+				x()
+				if not self.stand_alone and self.session.current_dialog != self:
+					return
 
-#		assert self.session == None, "a screen can only exec once per time"
-#		self.session = session
+#			assert self.session == None, "a screen can only exec once per time"
+#			self.session = session
 
-		for val in self.values() + self.renderer:
-			val.execBegin()
-			if self.session.current_dialog != self:
-				return
-			self.active_components.append(val)
+			for val in self.values() + self.renderer:
+				val.execBegin()
+				if not self.stand_alone and self.session.current_dialog != self:
+					return
+				self.active_components.append(val)
 
-		self.execing = True
+			self.execing = True
 	
-		for x in self.onShown:
-			x()
+			for x in self.onShown:
+				x()
 	
 	def execEnd(self):
 #		for (name, val) in self.items():
@@ -87,13 +105,16 @@ class Screen(dict, HTMLSkin, GUISkin):
 		self.__dict__.clear()
 	
 	def close(self, *retval):
-		self.session.close(self, *retval)
+		if not self.execing:
+			self.close_on_next_exec = retval
+		else:
+			self.session.close(self, *retval)
 
 	def setFocus(self, o):
 		self.instance.setFocus(o.instance)
 
 	def show(self):
-		if self.shown:
+		if self.shown or not self.instance:
 			return
 		self.shown = True
 		self.instance.show()
@@ -104,7 +125,7 @@ class Screen(dict, HTMLSkin, GUISkin):
 				val.onShow()
 
 	def hide(self):
-		if not self.shown:
+		if not self.shown or not self.instance:
 			return
 		self.shown = False
 		self.instance.hide()
@@ -113,3 +134,6 @@ class Screen(dict, HTMLSkin, GUISkin):
 		for val in self.values() + self.renderer:
 			if isinstance(val, GUIComponent) or isinstance(val, Source):
 				val.onHide()
+
+	def __repr__(self):
+		return str(type(self))