code.vuplus.com Git - vuplus_dvbapp/blob - 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         def tryPrepare(self):
  60                 self.calculateFilename()
  61                 self.record_service = NavigationInstance.instance.recordService(self.service_ref)
  62                 if self.record_service == None:
  63                         return False
  64                 else:
  65                         if self.record_service.prepare(self.Filename + ".ts"):
  66                                 self.record_service = None
  67                                 return False
  68
  69                         f = open(self.Filename + ".ts.meta", "w")
  70                         f.write(str(self.service_ref) + "\n")
  71                         f.write(self.epg_data + "\n")
  72                         del f
  73                         return True
  74
  75         def activate(self, event):
  76                 if event == self.EventPrepare:
  77                         self.prepareOK = False
  78                         if self.tryPrepare():
  79                                 self.prepareOK = True
  80                         else:
  81                                 # error.
  82                                 Notifications.AddNotificationWithCallback(self.failureCB, MessageBox, _("A timer failed to record!\nDisable TV and try again?\n"))
  83                 elif self.record_service == None:
  84                         if event != self.EventAbort:
  85                                 print "timer record start failed, can't finish recording."
  86                 elif event == self.EventStart:
  87                         if self.prepareOK:
  88                                 self.record_service.start()
  89                                 print "timer started!"
  90                         else:
  91                                 print "prepare failed, thus start failed, too."
  92                 elif event == self.EventEnd or event == self.EventAbort:
  93                         if self.prepareOK:
  94                                 self.record_service.stop()
  95                                 self.record_service = None
  96                                 print "Timer successfully ended"
  97                         else:
  98                                 print "prepare failed, thus nothing was recorded."
  99
 100         def abort():
 101                 # fixme
 102                 pass
 103
 104         def failureCB(self, answer):
 105                 if answer == True:
 106                         NavigationInstance.instance.stopUserServices()
 107                         self.activate(self.EventPrepare)
 108                 else:
 109                         print "user killed record"
 110
 111 def createTimer(xml):
 112         begin = int(xml.getAttribute("begin"))
 113         end = int(xml.getAttribute("end"))
 114         serviceref = ServiceReference(str(xml.getAttribute("serviceref")))
 115         description = xml.getAttribute("description")
 116         repeated = xml.getAttribute("repeated")
 117         epgdata = xml.getAttribute("epgdata")
 118         #filename = xml.getAttribute("filename")
 119         entry = RecordTimerEntry(begin, end, serviceref, epgdata, description)
 120         entry.repeated = int(repeated)
 121         return entry
 122
 123 class RecordTimer(timer.Timer):
 124         def __init__(self):
 125                 timer.Timer.__init__(self)
 126
 127                 self.Filename = Directories.resolveFilename(Directories.SCOPE_CONFIG, "timers.xml")
 128
 129                 try:
 130                         self.loadTimer()
 131                 except:
 132                         print "unable to load timers from file!"
 133
 134         def isRecording(self):
 135                 isRunning = False
 136                 for timer in self.timer_list:
 137                         if timer.isRunning():
 138                                 isRunning = True
 139                 return isRunning
 140
 141         def loadTimer(self):
 142                 # TODO: PATH!
 143                 doc = xml.dom.minidom.parse(self.Filename)
 144
 145                 root = doc.childNodes[0]
 146                 for timer in elementsWithTag(root.childNodes, "timer"):
 147                         self.record(createTimer(timer))
 148
 149         def saveTimer(self):
 150                 doc = xml.dom.minidom.Document()
 151                 root_element = doc.createElement('timers')
 152                 doc.appendChild(root_element)
 153                 root_element.appendChild(doc.createTextNode("\n"))
 154
 155                 for timer in self.timer_list + self.processed_timers:
 156                         # some timers (instant records) don't want to be saved.
 157                         # skip them
 158                         if timer.dontSave:
 159                                 continue
 160                         t = doc.createTextNode("\t")
 161                         root_element.appendChild(t)
 162                         t = doc.createElement('timer')
 163                         t.setAttribute("begin", str(timer.begin))
 164                         t.setAttribute("end", str(timer.end))
 165                         t.setAttribute("serviceref", str(timer.service_ref))
 166                         t.setAttribute("repeated", str(timer.repeated))
 167                         #t.setAttribute("epgdata", timer.)
 168                         t.setAttribute("description", timer.description)
 169                         root_element.appendChild(t)
 170                         t = doc.createTextNode("\n")
 171                         root_element.appendChild(t)
 172
 173                 file = open(self.Filename, "w")
 174                 doc.writexml(codecs.getwriter('UTF-8')(file))
 175                 file.write("\n")
 176                 file.close()
 177
 178         def record(self, entry):
 179                 print "[Timer] Record " + str(entry)
 180                 entry.Timer = self
 181                 self.addTimerEntry(entry)
 182
 183         def removeEntry(self, entry):
 184                 print "[Timer] Remove " + str(entry)
 185
 186                 entry.repeated = False
 187
 188                 entry.repeated = False
 189
 190                 if entry.state == timer.TimerEntry.StateRunning:
 191                         print "remove running timer."
 192                         entry.end = time.time()
 193                         self.timeChanged(entry)
 194                 elif entry.state != timer.TimerEntry.StateEnded:
 195                         entry.activate(timer.TimerEntry.EventAbort)
 196                         self.timer_list.remove(entry)
 197
 198                         self.calcNextActivation()
 199                         print "timer did not yet start - removing"
 200
 201                         # the timer was aborted, and removed.
 202                         return
 203                 else:
 204                         print "timer did already end - doing nothing."
 205
 206                 print "state: ", entry.state
 207                 print "in processed: ", entry in self.processed_timers
 208                 print "in running: ", entry in self.timer_list
 209                 # now the timer should be in the processed_timers list. remove it from there.
 210                 self.processed_timers.remove(entry)
 211
 212         def shutdown(self):
 213                 self.saveTimer()