lib/playlist_item.rb

   1 class PlaylistItem
   2         attr_reader :id, :edje, :position, :selected, :hilighted
   3
   4         def initialize(id, xmms, playlist)
   5                 @id = id
   6                 @position = playlist.size
   7
   8                 @xmms = xmms
   9                 @playlist = playlist
  10
  11                 @edje = nil
  12                 @height = 0
  13                 @selected = false
  14                 @hilighted = false
  15
  16                 @props = {}
  17
  18                 @xmms.medialib_get_info(id).notifier do |res|
  19                         self.properties = res.value
  20                 end
  21         end
  22
  23         def method_missing(method)
  24                 @props[method] || "unknown #{method}"
  25         end
  26
  27         def duration
  28                 @props[:duration].to_i / 1000
  29         end
  30
  31         def show(eet)
  32                 @edje = Edje::Edje.new(@playlist.container.evas)
  33                 @edje.load(eet, "playlist_item")
  34                 w, @height = @edje.get_size_min
  35
  36                 set_parts_text
  37
  38                 w, h = @edje.get_size_min
  39                 @edje.resize(w, h)
  40
  41                 @playlist.container.append_element(@edje)
  42
  43                 self.selected = @selected
  44
  45                 @edje.on_signal("playlist_item.selected") do |sig, src|
  46                         next if src == "Euphoria"
  47
  48                         @playlist.each do |item|
  49                                 item.selected = (item == self)
  50                         end
  51                 end
  52
  53                 @edje.on_signal("playlist_item.hilighted") do |sig, src|
  54                         next if src == "Euphoria"
  55
  56                         @playlist.each do |item|
  57                                 item.hilighted = (item == self)
  58                         end
  59                 end
  60
  61                 @edje.on_signal("playlist_item.play") do
  62                         @xmms.playlist_set_next(@position).wait
  63                         @xmms.playback_tickle.wait
  64                         @xmms.playback_start.wait
  65                 end
  66
  67                 @edje.on_signal("PLAYLIST_SCROLL_UP", "") do
  68                         @playlist.container.scroll(h * 3)
  69                 end
  70
  71                 @edje.on_signal("PLAYLIST_SCROLL_DOWN", "") do
  72                         @playlist.container.scroll(h * -3)
  73                 end
  74         end
  75
  76         def hilighted=(b)
  77                 @hilighted = b
  78
  79                 sig = b ? "hilighted" : "unhilighted"
  80                 unless @edje.nil?
  81                         @edje.emit_signal("playlist_item.#{sig}", "Euphoria")
  82                 end
  83         end
  84
  85         def selected=(b)
  86                 @selected = b
  87
  88                 sig = b ? "selected" : "unselected"
  89                 unless @edje.nil?
  90                         @edje.emit_signal("playlist_item.#{sig}", "Euphoria")
  91                 end
  92         end
  93
  94         def visible?
  95                 # since we don't actually hide the edje, but just delete it,
  96                 # we don't need to check @edje.visible? here
  97                 !@edje.nil?
  98         end
  99
 100         def hide
 101                 @playlist.container.remove_element(@edje)
 102                 @edje.delete
 103                 @edje = nil
 104         end
 105
 106         def properties=(hash)
 107                 @props = hash || {}
 108
 109                 set_parts_text unless @edje.nil?
 110         end
 111
 112         def position=(pos)
 113                 @position = pos
 114                 set_parts_text unless @edje.nil?
 115         end
 116
 117         def track_info_message
 118                 unless @props[:channel].nil?
 119                         Edje::Message.new(0, channel)
 120                 else
 121                         Edje::Message.new(0, artist, title, album)
 122                 end
 123         end
 124
 125         private
 126         def set_parts_text
 127                 tmp = (duration == -1) ? "" :
 128                       ("%i:%02i" % [duration / 60, duration % 60])
 129                 @edje.part("duration").text = tmp
 130                 @edje.part("title").text = "%i %s - %s" % [@position + 1, artist, title]
 131         end
 132 end