RecordTimer.py

   1 import time
   2 import codecs
   3 #from time import datetime
   4 from Tools import Directories, Notifications
   5
   6 import timer
   7 import xml.dom.minidom
   8
   9 from Screens.MessageBox import MessageBox
  10 import NavigationInstance
  11
  12 from Tools.XMLTools import elementsWithTag
  13 from ServiceReference import ServiceReference
  14
  15 class RecordTimerEntry(timer.TimerEntry):
  16         def __init__(self, begin, end, serviceref, epg, description):
  17                 timer.TimerEntry.__init__(self, int(begin), int(end))
  18
  19                 assert isinstance(serviceref, ServiceReference)
  20
  21                 self.service_ref = serviceref
  22
  23                 if epg is not None:
  24                         self.epg_data = ""
  25                         #str(epg.m_event_name)
  26                 else:
  27                         self.epg_data = ""
  28
  29                 self.dontSave = False
  30                 self.description = description
  31                 self.timer = None
  32                 self.record_service = None
  33
  34         def calculateFilename(self):
  35                 service_name = self.service_ref.getServiceName()
  36 #               begin_date = datetime.fromtimestamp(begin).strf...
  37                 begin_date = ""
  38                 if self.epg_data is not None:
  39                         description = " - " + self.epg_data
  40                 else:
  41                         description = ""
  42
  43                 print "begin_date: " + str(begin_date)
  44                 print "service_name: " + str(service_name)
  45                 print "description: " + str(description)
  46                 self.Filename = Directories.getRecordingFilename(service_name)
  47                 #begin_date + " - " + service_name + description)
  48
  49                 # build filename from epg
  50
  51                 # pff das geht noch nicht...
  52 #               if epg == None:
  53 #                       self.Filename = "recording.ts"
  54 #               else:
  55 #                       self.Filename = "record_" + str(epg.m_event_name) + ".ts"
  56 #
  57 #               print "------------ record filename: %s" % (self.Filename)
  58
  59
  60         def activate(self, event):
  61                 if event == self.EventPrepare:
  62                         self.calculateFilename()
  63                         self.record_service = NavigationInstance.instance.recordService(self.service_ref)
  64                         if self.record_service == None:
  65                                 print "timer record failed."
  66                         else:
  67                                 if self.record_service.prepare(self.Filename + ".ts"):
  68                                         # error.
  69                                         Notifications.AddNotificationWithCallback(self.failureCB, MessageBox, _("A timer failed to record!\nReason: unknown."))
  70
  71                                 f = open(self.Filename + ".ts.meta", "w")
  72                                 f.write(str(self.service_ref) + "\n")
  73                                 f.write(self.epg_data + "\n")
  74                                 del f
  75                 elif self.record_service == None:
  76                         if event != self.EventAbort:
  77                                 print "timer record start failed, can't finish recording."
  78                 elif event == self.EventStart:
  79                         self.record_service.start()
  80                         print "timer started!"
  81                 elif event == self.EventEnd or event == self.EventAbort:
  82                         self.record_service.stop()
  83                         self.record_service = None
  84                         print "Timer successfully ended"
  85
  86         def failureCB(self, answer):
  87                 if answer == True:
  88                         print "kill user to record"
  89                 else:
  90                         print "user killed record"
  91
  92 def createTimer(xml):
  93         begin = int(xml.getAttribute("begin"))
  94         end = int(xml.getAttribute("end"))
  95         serviceref = ServiceReference(str(xml.getAttribute("serviceref")))
  96         description = xml.getAttribute("description")
  97         repeated = xml.getAttribute("repeated")
  98         epgdata = xml.getAttribute("epgdata")
  99         #filename = xml.getAttribute("filename")
 100         entry = RecordTimerEntry(begin, end, serviceref, epgdata, description)
 101         entry.repeated = int(repeated)
 102         return entry
 103
 104 class RecordTimer(timer.Timer):
 105         def __init__(self):
 106                 timer.Timer.__init__(self)
 107
 108                 self.Filename = Directories.resolveFilename(Directories.SCOPE_USERETC, "timers.xml")
 109
 110                 try:
 111                         self.loadTimer()
 112                 except:
 113                         print "unable to load timers from file!"
 114
 115         def isRecording(self):
 116                 isRunning = False
 117                 for timer in self.timer_list:
 118                         if timer.isRunning():
 119                                 isRunning = True
 120                 return isRunning
 121
 122         def loadTimer(self):
 123                 # TODO: PATH!
 124                 doc = xml.dom.minidom.parse(self.Filename)
 125
 126                 root = doc.childNodes[0]
 127                 for timer in elementsWithTag(root.childNodes, "timer"):
 128                         self.record(createTimer(timer))
 129
 130         def saveTimer(self):
 131                 doc = xml.dom.minidom.Document()
 132                 root_element = doc.createElement('timers')
 133                 doc.appendChild(root_element)
 134                 root_element.appendChild(doc.createTextNode("\n"))
 135
 136                 for timer in self.timer_list + self.processed_timers:
 137                         # some timers (instant records) don't want to be saved.
 138                         # skip them
 139                         if timer.dontSave:
 140                                 continue
 141                         t = doc.createTextNode("\t")
 142                         root_element.appendChild(t)
 143                         t = doc.createElement('timer')
 144                         t.setAttribute("begin", str(timer.begin))
 145                         t.setAttribute("end", str(timer.end))
 146                         t.setAttribute("serviceref", str(timer.service_ref))
 147                         t.setAttribute("repeated", str(timer.repeated))
 148                         #t.setAttribute("epgdata", timer.)
 149                         t.setAttribute("description", timer.description)
 150                         root_element.appendChild(t)
 151                         t = doc.createTextNode("\n")
 152                         root_element.appendChild(t)
 153
 154                 file = open(self.Filename, "w")
 155                 doc.writexml(codecs.getwriter('UTF-8')(file))
 156                 file.write("\n")
 157                 file.close()
 158
 159         def record(self, entry):
 160                 print "[Timer] Record " + str(entry)
 161                 entry.Timer = self
 162                 self.addTimerEntry(entry)
 163
 164         def removeEntry(self, entry):
 165                 print "[Timer] Remove " + str(entry)
 166
 167                 entry.repeated = False
 168
 169                 entry.repeated = False
 170
 171                 if entry.state == timer.TimerEntry.StateRunning:
 172                         print "remove running timer."
 173                         entry.end = time.time()
 174                         self.timeChanged(entry)
 175                 elif entry.state != timer.TimerEntry.StateEnded:
 176                         entry.activate(timer.TimerEntry.EventAbort)
 177                         self.timer_list.remove(entry)
 178
 179                         self.calcNextActivation()
 180                         print "timer did not yet start - removing"
 181
 182                         # the timer was aborted, and removed.
 183                         return
 184                 else:
 185                         print "timer did already end - doing nothing."
 186
 187                 print "state: ", entry.state
 188                 print "in processed: ", entry in self.processed_timers
 189                 print "in running: ", entry in self.timer_list
 190                 # now the timer should be in the processed_timers list. remove it from there.
 191                 self.processed_timers.remove(entry)
 192
 193         def shutdown(self):
 194                 self.saveTimer()