simplerss/src/RSSList.py

   1 from Components.GUIComponent import GUIComponent
   2 from Components.MultiContent import MultiContentEntryText
   3 from enigma import eListboxPythonMultiContent, eListbox, gFont, RT_HALIGN_LEFT, RT_WRAP
   4
   5 class RSSBaseList(GUIComponent):
   6         """Base List Component for RSSFeeds."""
   7         def __init__(self, entries, itemheight):
   8                 GUIComponent.__init__(self)
   9                 self.list = entries
  10                 self.itemheight = itemheight
  11                 self.l = eListboxPythonMultiContent()
  12                 self.l.setFont(0, gFont("Regular", 22))
  13                 self.l.setFont(1, gFont("Regular", 18))
  14                 self.l.setList(self.list)
  15
  16                 self.onSelectionChanged = [ ]
  17
  18         def connectSelChanged(self, fnc):
  19                 if not fnc in self.onSelectionChanged:
  20                         self.onSelectionChanged.append(fnc)
  21
  22         def disconnectSelChanged(self, fnc):
  23                 if fnc in self.onSelectionChanged:
  24                         self.onSelectionChanged.remove(fnc)
  25
  26         def selectionChanged(self):
  27                 for x in self.onSelectionChanged:
  28                         try:
  29                                 x()
  30                         except:
  31                                 pass
  32
  33         GUI_WIDGET = eListbox
  34
  35         def postWidgetCreate(self, instance):
  36                 instance.setContent(self.l)
  37                 instance.setItemHeight(self.itemheight)
  38                 instance.selectionChanged.get().append(self.selectionChanged)
  39
  40         def preWidgetRemove(self, instance):
  41                 instance.selectionChanged.get().remove(self.selectionChanged)
  42                 instance.setContent(None)
  43
  44         def getCurrentEntry(self):
  45                 return self.l.getCurrentSelection()
  46
  47         def getCurrentIndex(self):
  48                 return self.instance.getCurrentIndex()
  49
  50         def moveToIndex(self, index):
  51                 self.instance.moveSelectionTo(index)
  52
  53         def moveToEntry(self, identifier):
  54                 pass
  55
  56         def moveDown(self):
  57                 self.instance.moveSelection(self.instance.moveDown)
  58
  59         def moveUp(self):
  60                 self.instance.moveSelection(self.instance.moveUp)
  61
  62         def invalidate(self):
  63                 self.l.invalidate()
  64
  65 class RSSFeedList(RSSBaseList):
  66         def __init__(self, entries):
  67                 RSSBaseList.__init__(self, entries, 100)
  68                 self.l.setBuildFunc(self.buildListboxEntry)
  69
  70         def moveToEntry(self, feed):
  71                 if feed is None:
  72                         return
  73
  74                 idx = 0
  75                 for x in self.list:
  76                         if feed.uri == x[0].uri:
  77                                 self.instance.moveSelectionTo(idx)
  78                                 break
  79                         idx += 1
  80
  81         def buildListboxEntry(self, feed):
  82                 res = [ None ]
  83                 width = self.l.getItemSize().width()
  84                 res.append(MultiContentEntryText(pos=(0, 0), size=(width, 75), font=0, flags = RT_HALIGN_LEFT|RT_WRAP, text = feed.title))
  85                 res.append(MultiContentEntryText(pos=(0, 75), size=(width, 20), font=1, flags = RT_HALIGN_LEFT, text = feed.description))
  86                 return res
  87
  88         def getCurrentEntry(self):
  89                 # We know that the list will never be empty...
  90                 return self.l.getCurrentSelection()[0]
  91
  92 class RSSEntryList(RSSBaseList):
  93         def __init__(self, entries):
  94                 RSSBaseList.__init__(self, entries, 50)
  95                 self.l.setBuildFunc(self.buildListboxEntry)
  96
  97         def moveToEntry(self, entry):
  98                 if entry is None:
  99                         return
 100
 101                 idx = 0
 102                 for x in self.list:
 103                         if entry[0] == x[0]:
 104                                 self.instance.moveSelectionTo(idx)
 105                                 break
 106                         idx += 1
 107
 108         def buildListboxEntry(self, title, link, summary, enclosures):
 109                 res = [ None ]
 110                 width = self.l.getItemSize().width()
 111                 res.append(MultiContentEntryText(pos=(0, 3), size=(width, 50), font=0, flags = RT_HALIGN_LEFT|RT_WRAP, text = title))
 112                 return res