lib/python/Plugins/Extensions/DVDBurn/DVDToolbox.py

   1 from Screens.Screen import Screen
   2 from Screens.MessageBox import MessageBox
   3 from Screens.HelpMenu import HelpableScreen
   4 from Components.ActionMap import HelpableActionMap, ActionMap
   5 from Components.Sources.List import List
   6 from Components.Sources.StaticText import StaticText
   7 from Components.Sources.Progress import Progress
   8 from Components.Task import Task, Job, job_manager, Condition
   9 from Components.ScrollLabel import ScrollLabel
  10 from Components.Harddisk import harddiskmanager
  11 from Components.Console import Console
  12
  13 class DVDToolbox(Screen):
  14         skin = """
  15                 <screen position="90,83" size="560,445" title="DVD media toolbox" >
  16                     <ePixmap pixmap="skin_default/buttons/red.png" position="0,0" size="140,40" alphatest="on" />
  17                     <ePixmap pixmap="skin_default/buttons/green.png" position="140,0" size="140,40" alphatest="on" />
  18                     <ePixmap pixmap="skin_default/buttons/yellow.png" position="280,0" size="140,40" alphatest="on" />
  19                     <ePixmap pixmap="skin_default/buttons/blue.png" position="420,0" size="140,40" alphatest="on" />
  20                     <widget source="key_red" render="Label" position="0,0" zPosition="1" size="140,40" font="Regular;20" halign="center" valign="center" backgroundColor="#9f1313" transparent="1" />
  21                     <widget source="key_green" render="Label" position="140,0" zPosition="1" size="140,40" font="Regular;20" halign="center" valign="center" backgroundColor="#1f771f" transparent="1" />
  22                     <widget source="key_yellow" render="Label" position="280,0" zPosition="1" size="140,40" font="Regular;20" halign="center" valign="center" backgroundColor="#a08500" transparent="1" />
  23                     <widget source="key_blue" render="Label" position="420,0" zPosition="1" size="140,40" font="Regular;20" halign="center" valign="center" backgroundColor="#18188b" transparent="1" />
  24                     <widget source="info" render="Label" position="20,60" size="520,100" font="Regular;20" />
  25                     <widget name="details" position="20,200" size="520,200" font="Regular;16" />
  26                     <widget source="space_bar" render="Progress" position="10,410" size="540,26" borderWidth="1" backgroundColor="#254f7497" />
  27                     <widget source="space_label" render="Label" position="20,414" size="520,22" zPosition="2" font="Regular;18" halign="center" transparent="1" foregroundColor="#000000" />
  28                 </screen>"""
  29
  30         def __init__(self, session):
  31                 Screen.__init__(self, session)
  32
  33                 self["key_red"] = StaticText(_("Exit"))
  34                 self["key_green"] = StaticText(_("Update"))
  35                 self["key_yellow"] = StaticText()
  36                 self["key_blue"] = StaticText()
  37
  38                 self["space_label"] = StaticText()
  39                 self["space_bar"] = Progress()
  40
  41                 self.mediuminfo = [ ]
  42                 self.formattable = False
  43                 self["details"] = ScrollLabel()
  44                 self["info"] = StaticText()
  45
  46                 self["toolboxactions"] = ActionMap(["ColorActions", "DVDToolbox", "OkCancelActions"],
  47                 {
  48                     "red": self.exit,
  49                     "green": self.update,
  50                     "yellow": self.format,
  51                     #"blue": self.eject,
  52                     "cancel": self.close,
  53                     "pageUp": self.pageUp,
  54                     "pageDown": self.pageDown
  55                 })
  56                 self.update()
  57
  58         def pageUp(self):
  59                 self["details"].pageUp()
  60
  61         def pageDown(self):
  62                 self["details"].pageDown()
  63
  64         def update(self):
  65                 self["space_label"].text = _("Please wait... Loading list...")
  66                 self["info"].text = ""
  67                 self["details"].setText("")
  68                 self.Console = Console()
  69                 cmd = "/bin/dvd+rw-mediainfo /dev/" + harddiskmanager.getCD()
  70                 self.Console.ePopen(cmd, self.mediainfoCB)
  71
  72         def format(self):
  73                 if self.formattable:
  74                         job = DVDformatJob(self)
  75                         job_manager.AddJob(job)
  76                         from Screens.TaskView import JobView
  77                         self.session.openWithCallback(self.formatCB, JobView, job)
  78
  79         def formatCB(self, in_background):
  80                 self.update()
  81
  82         def mediainfoCB(self, mediuminfo, retval, extra_args):
  83                 capacity = 1
  84                 used = 0
  85                 infotext = ""
  86                 mediatype = ""
  87                 for line in mediuminfo.splitlines():
  88                         if line.find("Mounted Media:") > -1:
  89                                 mediatype = line.rsplit(',',1)[1][1:]
  90                                 if mediatype.find("RW") > 0:
  91                                         self.formattable = True
  92                                 else:
  93                                         self.formattable = False
  94                         if line.find("Legacy lead-out at:") > -1:
  95                                 used = int(line.rsplit('=',1)[1]) / 1048576.0
  96                                 print "[lead out] used =", used
  97                         elif line.find("formatted:") > -1:
  98                                 capacity = int(line.rsplit('=',1)[1]) / 1048576.0
  99                                 print "[formatted] capacity =", capacity
 100                         elif capacity == 1 and line.find("READ CAPACITY:") > -1:
 101                                 capacity = int(line.rsplit('=',1)[1]) / 1048576.0
 102                                 print "[READ CAP] capacity =", capacity
 103                         elif line.find("Disc status:") > -1:
 104                                 if line.find("blank") > -1:
 105                                         print "[Disc status] capacity=%d, used=0" % (capacity)
 106                                         capacity = used
 107                                         used = 0
 108                         elif line.find("Free Blocks:") > -1:
 109                                 try:
 110                                         size = eval(line[14:].replace("KB","*1024"))
 111                                 except:
 112                                         size = 0
 113                                 if size > 0:
 114                                         capacity = size / 1048576
 115                                         if used:
 116                                                 used = capacity-used
 117                                         print "[free blocks] capacity=%d, used=%d" % (capacity, used)
 118                         infotext += line+'\n'
 119                 self["details"].setText(infotext)
 120                 if self.formattable:
 121                         self["key_yellow"].text = _("Format")
 122                 else:
 123                         self["key_yellow"].text = ""
 124                 percent = 100 * used / (capacity or 1)
 125                 if capacity > 4600:
 126                         self["space_label"].text = "%d / %d MB" % (used, capacity) + " (%.2f%% " % percent + _("of a DUAL layer medium used.") + ")"
 127                         self["space_bar"].value = int(percent)
 128                 elif capacity > 1:
 129                         self["space_label"].text = "%d / %d MB" % (used, capacity) + " (%.2f%% " % percent + _("of a SINGLE layer medium used.") + ")"
 130                         self["space_bar"].value = int(percent)
 131                 elif capacity == 1 and used > 0:
 132                         self["space_label"].text = "%d MB " % (used) + _("on READ ONLY medium.")
 133                         self["space_bar"].value = int(percent)
 134                 else:
 135                         self["space_label"].text = _("Medium is not a writeable DVD!")
 136                         self["space_bar"].value = 0
 137                 free = capacity-used
 138                 if free < 2:
 139                         free = 0
 140                 self["info"].text = "Media-Type:\t\t%s\nFree capacity:\t\t%d MB" % (mediatype or "NO DVD", free)
 141
 142         def exit(self):
 143                 del self.Console
 144                 self.close()
 145
 146 class DVDformatJob(Job):
 147         def __init__(self, toolbox):
 148                 Job.__init__(self, _("DVD media toolbox"))
 149                 self.toolbox = toolbox
 150                 DVDformatTask(self)
 151
 152         def retry(self):
 153                 self.tasks[0].args += self.tasks[0].retryargs
 154                 Job.retry(self)
 155
 156 class DVDformatTaskPostcondition(Condition):
 157         RECOVERABLE = True
 158         def check(self, task):
 159                 return task.error is None
 160
 161         def getErrorMessage(self, task):
 162                 return {
 163                         task.ERROR_ALREADYFORMATTED: _("This DVD RW medium is already formatted - reformatting will erase all content on the disc."),
 164                         task.ERROR_NOTWRITEABLE: _("Medium is not a writeable DVD!"),
 165                         task.ERROR_UNKNOWN: _("An unknown error occured!")
 166                 }[task.error]
 167
 168 class DVDformatTask(Task):
 169         ERROR_ALREADYFORMATTED, ERROR_NOTWRITEABLE, ERROR_UNKNOWN = range(3)
 170         def __init__(self, job, extra_args=[]):
 171                 Task.__init__(self, job, ("RW medium format"))
 172                 self.toolbox = job.toolbox
 173                 self.postconditions.append(DVDformatTaskPostcondition())
 174                 self.setTool("/bin/dvd+rw-format")
 175                 self.args += [ "/dev/" + harddiskmanager.getCD() ]
 176                 self.end = 1100
 177                 self.retryargs = [ ]
 178
 179         def prepare(self):
 180                 self.error = None
 181
 182         def processOutputLine(self, line):
 183                 if line.startswith("- media is already formatted"):
 184                         self.error = self.ERROR_ALREADYFORMATTED
 185                         self.retryargs = [ "-force" ]
 186                 if line.startswith("- media is not blank"):
 187                         self.error = self.ERROR_ALREADYFORMATTED
 188                         self.retryargs = [ "-blank" ]
 189                 if line.startswith(":-( mounted media doesn't appear to be"):
 190                         self.error = self.ERROR_NOTWRITEABLE
 191
 192         def processOutput(self, data):
 193                 print "[DVDformatTask processOutput]  ", data
 194                 if data.endswith('%'):
 195                         data= data.replace('\x08','')
 196                         self.progress = int(float(data[:-1])*10)
 197                 else:
 198                         Task.processOutput(self, data)