Screen: clear all elements on close

[enigma2.git] / lib / python / Screens / Wizard.py

diff --git a/lib/python/Screens/Wizard.py b/lib/python/Screens/Wizard.py
index e4f69290a2b117ee00887f20d2624d449b7937f1..01797267189853f7db4fd974dfb771bc7e54ff73 100644 (file)
--- a/lib/python/Screens/Wizard.py
+++ b/lib/python/Screens/Wizard.py
@@ -1,5 +1,7 @@
 from Screen import Screen
 
+import string
+
 from Screens.HelpMenu import HelpableScreen
 from Components.Label import Label
 from Components.Slider import Slider
@@ -27,9 +29,9 @@ class Wizard(Screen, HelpableScreen):
                        self.currContent = name
                        if (name == "step"):
                                self.lastStep = int(attrs.get('number'))
-                               self.wizard[self.lastStep] = {"text": "", "list": [], "config": {"screen": None, "args": None, "type": "" }, "code": ""}
+                               self.wizard[self.lastStep] = {"condition": "", "text": "", "list": [], "config": {"screen": None, "args": None, "type": "" }, "code": ""}
                        elif (name == "text"):
-                               self.wizard[self.lastStep]["text"] = _(str(attrs.get('value')))
+                               self.wizard[self.lastStep]["text"] = string.replace(str(attrs.get('value')), "\\n", "\n")
                        elif (name == "listentry"):
                                self.wizard[self.lastStep]["list"].append((str(attrs.get('caption')), str(attrs.get('step'))))
                        elif (name == "config"):
@@ -39,15 +41,20 @@ class Wizard(Screen, HelpableScreen):
                                        print "has args"
                                        self.wizard[self.lastStep]["config"]["args"] = str(attrs.get('args'))
                                self.wizard[self.lastStep]["config"]["type"] = str(attrs.get('type'))
+                       elif (name == "condition"):
+                               pass
                def endElement(self, name):
                        self.currContent = ""
                        if name == 'code':
                                self.wizard[self.lastStep]["code"] = self.wizard[self.lastStep]["code"].strip()
-                               
+                       elif name == 'condition':
+                               self.wizard[self.lastStep]["condition"] = self.wizard[self.lastStep]["condition"].strip()
+                                                               
                def characters(self, ch):
                        if self.currContent == "code":
                                 self.wizard[self.lastStep]["code"] = self.wizard[self.lastStep]["code"] + ch
-                               
+                       elif self.currContent == "condition":
+                                self.wizard[self.lastStep]["condition"] = self.wizard[self.lastStep]["condition"] + ch
        def __init__(self, session):
                Screen.__init__(self, session)
                HelpableScreen.__init__(self)
@@ -74,11 +81,12 @@ class Wizard(Screen, HelpableScreen):
                self["list"] = MenuList(self.list)
 
                self.onShown.append(self.updateValues)
+               self.onClose.append(self.delReferences)
                
                self["actions"] = NumberActionMap(["WizardActions", "NumberActions"],
                {
                        "ok": self.ok,
-                       #"cancel": self.keyCancel,
+                       "back": self.back,
                        "left": self.left,
                        "right": self.right,
                        "up": self.up,
@@ -100,6 +108,12 @@ class Wizard(Screen, HelpableScreen):
                                #"ok": (self.ok, _("Close this Screen...")),
                        #})
 
+       def back(self):
+               self.currStep -= 1
+               if self.currStep < 1:
+                       self.currStep = 1
+               self.updateValues()
+               
        def ok(self):
                print "OK"
                if (self.wizard[self.currStep]["config"]["screen"] != None):
@@ -145,51 +159,62 @@ class Wizard(Screen, HelpableScreen):
                if (self.wizard[self.currStep]["config"]["screen"] != None):
                        self["config"].instance.moveSelection(self["config"].instance.moveUp)
                elif (len(self.wizard[self.currStep]["list"]) > 0):
-                       self["list"].instance.moveSelection(self["config"].instance.moveUp)
+                       self["list"].instance.moveSelection(self["list"].instance.moveUp)
                print "up"
                
        def down(self):
                if (self.wizard[self.currStep]["config"]["screen"] != None):
                        self["config"].instance.moveSelection(self["config"].instance.moveDown)
                elif (len(self.wizard[self.currStep]["list"]) > 0):
-                       self["list"].instance.moveSelection(self["config"].instance.moveDown)
+                       self["list"].instance.moveSelection(self["list"].instance.moveDown)
                print "down"
                
        def updateValues(self):
                print "Updating values in step " + str(self.currStep)
-               self["step"].setText(_("Step ") + str(self.currStep) + "/" + str(self.numSteps))
-               self["stepslider"].setValue(self.currStep)
-
-               self["text"].setText(_(self.wizard[self.currStep]["text"]))
-
-               if self.wizard[self.currStep]["code"] != "":
-                       print self.wizard[self.currStep]["code"]
-                       exec(self.wizard[self.currStep]["code"])
                
-               self["list"].instance.setZPosition(1)
-               self.list = []
-               if (len(self.wizard[self.currStep]["list"]) > 0):
-                       self["list"].instance.setZPosition(2)
-                       for x in self.wizard[self.currStep]["list"]:
-                               self.list.append((x[0], None))
-               self["list"].l.setList(self.list)
-
-               self["config"].instance.setZPosition(1)
-               if (self.wizard[self.currStep]["config"]["screen"] != None):
-                       if self.wizard[self.currStep]["config"]["type"] == "standalone":
-                               print "Type is standalone"
-                               self.session.openWithCallback(self.ok, self.wizard[self.currStep]["config"]["screen"])
-                       else:
-                               self["config"].instance.setZPosition(2)
-                               print self.wizard[self.currStep]["config"]["screen"]
-                               if self.wizard[self.currStep]["config"]["args"] == None:
-                                       self.configInstance = self.session.instantiateDialog(self.wizard[self.currStep]["config"]["screen"])
+               self.condition = True
+               exec (self.wizard[self.currStep]["condition"])
+               if self.condition:
+                       self["step"].setText(_("Step ") + str(self.currStep) + "/" + str(self.numSteps))
+                       self["stepslider"].setValue(self.currStep)
+               
+                       print _(self.wizard[self.currStep]["text"])
+                       self["text"].setText(_(self.wizard[self.currStep]["text"]))
+       
+                       if self.wizard[self.currStep]["code"] != "":
+                               print self.wizard[self.currStep]["code"]
+                               exec(self.wizard[self.currStep]["code"])
+                       
+                       self["list"].instance.setZPosition(1)
+                       self.list = []
+                       if (len(self.wizard[self.currStep]["list"]) > 0):
+                               self["list"].instance.setZPosition(2)
+                               for x in self.wizard[self.currStep]["list"]:
+                                       self.list.append((_(x[0]), None))
+                       self["list"].l.setList(self.list)
+       
+                       self["config"].instance.setZPosition(1)
+                       if (self.wizard[self.currStep]["config"]["screen"] != None):
+                               if self.wizard[self.currStep]["config"]["type"] == "standalone":
+                                       print "Type is standalone"
+                                       self.session.openWithCallback(self.ok, self.wizard[self.currStep]["config"]["screen"])
                                else:
-                                       self.configInstance = self.session.instantiateDialog(self.wizard[self.currStep]["config"]["screen"], eval(self.wizard[self.currStep]["config"]["args"]))
-                               self["config"].l.setList(self.configInstance["config"].list)
-                               self.configInstance["config"] = self["config"]
-               else:
-                       self["config"].l.setList([])
+                                       self["config"].instance.setZPosition(2)
+                                       print self.wizard[self.currStep]["config"]["screen"]
+                                       if self.wizard[self.currStep]["config"]["args"] == None:
+                                               self.configInstance = self.session.instantiateDialog(self.wizard[self.currStep]["config"]["screen"])
+                                       else:
+                                               self.configInstance = self.session.instantiateDialog(self.wizard[self.currStep]["config"]["screen"], eval(self.wizard[self.currStep]["config"]["args"]))
+                                       self["config"].l.setList(self.configInstance["config"].list)
+                                       self.configInstance["config"] = self["config"]
+                       else:
+                               self["config"].l.setList([])
+               else: # condition false
+                               self.currStep += 1
+                               self.updateValues()
+
+       def delReferences(self):
+               del self.configInstance
 
 class WizardManager:
        def __init__(self):