plugin api change: Plugins() and main functions must receive (and possibly ignore...

[vuplus_dvbapp] / lib / python / Plugins / Extensions / ZappingAlternatives / plugin.py

diff --git a/lib/python/Plugins/Extensions/ZappingAlternatives/plugin.py b/lib/python/Plugins/Extensions/ZappingAlternatives/plugin.py
index fe21728..118f0cb 100644 (file)
--- a/lib/python/Plugins/Extensions/ZappingAlternatives/plugin.py
+++ b/lib/python/Plugins/Extensions/ZappingAlternatives/plugin.py
@@ -36,6 +36,16 @@ def removeAlternative(service1, service2):
                del alternatives[service1]
        if len(alternatives[service2]) == 0:
                del alternatives[service2]
+               
+def loadAlternatives():
+       doc = xml.dom.minidom.parse(resolveFilename(SCOPE_CONFIG, "alternatives.xml"))
+       
+       root = doc.childNodes[0]
+       for service in elementsWithTag(root.childNodes, 'service'):
+               newService = str(service.getAttribute('ref'))
+               for alternative in elementsWithTag(service.childNodes, 'alternative'):
+                       newAlternative = str(alternative.getAttribute('ref'))
+                       addAlternative(newService, newAlternative)
 
 def sortKey(x):
        return str.lower(ServiceReference(x).getServiceName().strip())
@@ -47,8 +57,8 @@ class AlternativeZapping(Screen):
                        <widget name="green" position="140,0" size="140,40" backgroundColor="green" halign="center" valign="center" font="Regular;21" />
                        <widget name="yellow" position="280,0" size="140,40" backgroundColor="yellow" halign="center" valign="center" font="Regular;21" />
                        <widget name="blue" position="420,0" size="140,40" backgroundColor="blue" halign="center" valign="center" font="Regular;21" />
-                       <widget name="serviceslist" position="0,40" size="280,360" />
-                       <widget name="alternativeslist" position="280,40" size="280,360" selectionDisabled="1" />
+                       <widget name="serviceslist" position="0,40" size="280,360" scrollbarMode="showOnDemand" />
+                       <widget name="alternativeslist" position="280,40" size="280,360" selectionDisabled="1" scrollbarMode="showOnDemand" />
                </screen>"""
        def __init__(self, session):
                self.skin = AlternativeZapping.skin
@@ -211,9 +221,9 @@ class AlternativeZapping(Screen):
                if not self.alternatives.has_key(serviceString):
                        self.alternatives[serviceString] = []
                self.updateServices()
-               self.updateAlternatives()
                self.selectService(serviceString)
-
+               self.updateAlternatives()
+               
        def yellowKey(self):
                if len(self.serviceslist) > 0:
                        self.session.openWithCallback(self.finishedAlternativeSelection, SimpleChannelSelection, _("Select alternative service"))
@@ -224,22 +234,69 @@ class AlternativeZapping(Screen):
 
 oldPlayService = NavigationInstance.instance.playService
 
+from Components.PerServiceDisplay import PerServiceDisplay
+
+class ServiceChanged(PerServiceDisplay):
+       def __init__(self, navcore):
+               PerServiceDisplay.__init__(self, navcore,
+                       {
+                               iPlayableService.evTuneFailed: self.tuneFailed,
+                               iPlayableService.evStart: self.start
+                       })
+               
+               self.lastPlayAction = None
+               self.nextPlayTry = 0
+
+       def start(self):
+#              print "+++++++++++++++++++++++++++++++++++++++++++++++++Start", self.lastPlayAction
+               if self.lastPlayAction is not None:
+                       self.lastPlayAction = None
+
+       def tuneFailed(self):
+#              print "+++++++++++++++++++++++++++++++++++++++++++++++++Tuning failed!", self.lastPlayAction
+               ref = self.lastPlayAction
+#              print "Ref:", ref
+#              print "Alternatives: failed to play service"
+               if ref is not None:
+                       if alternatives.has_key(ref):
+#                                      print "Alternatives: trying alternatives"
+                                       if len(alternatives[ref]) > self.nextPlayTry:
+#                                              print "Alternatives: trying alternative", alternatives[ref][self.nextPlayTry]
+                                               if oldPlayService(ServiceReference(alternatives[ref][self.nextPlayTry]).ref) == 0:
+                                                               self.nextPlayTry += 1
+#                                                              print "Alternatives: Alternative found!"
+                                               else:
+                                                               self.nextPlayTry += 1
+#                                                              print "Alternatives: Alternative doesn't play either"
+                                                               self.tuneFailed()
+                                       else:
+                                               self.lastPlayAction = None
+
+                                       #print "Alternatives: No playable alternative found!"
+
+servicechanged = ServiceChanged(NavigationInstance.instance)
+
 def playService(self, ref):
-       if not oldPlayService(ref):
-               if alternatives.has_key(str(ServiceReference(ref))):
-                       for x in alternatives[str(ServiceReference(ref))]:
-                               if oldPlayService(ServiceReference(x).ref):
-                                       return 1
-               return 0
-       return 1
+       #print "--------------------Alternatives: trying to play service", str(ServiceReference(ref))
+       servicechanged.lastPlayAction = str(ServiceReference(ref))
+       servicechanged.nextPlayTry = 0
+       result = oldPlayService(ref)
+
+       
+       return result
 
 def autostart(reason):
        if reason == 0:
+               try:
+                       loadAlternatives()
+               except:
+                       pass
                NavigationInstance.instance.playService = type(NavigationInstance.instance.playService)(playService, NavigationInstance, Navigation)
+               
 
-def AlternativeZappingSetup(session):
+def AlternativeZappingSetup(session, **kwargs):
        session.open(AlternativeZapping)
 
-def Plugins():
+def Plugins(**kwargs):
        return [PluginDescriptor(where = PluginDescriptor.WHERE_AUTOSTART, fnc = autostart),
                        PluginDescriptor(name="Alternative services setup" , description="Defines alternatives for services.", where = PluginDescriptor.WHERE_PLUGINMENU, fnc=AlternativeZappingSetup)]