lib/python/Screens/Menu.py

   1 from Screen import Screen
   2 from Components.Sources.List import List
   3 from Components.ActionMap import NumberActionMap
   4 from Components.Sources.StaticText import StaticText
   5 from Components.config import configfile
   6 from Components.PluginComponent import plugins
   7 from Components.config import config
   8 from Components.SystemInfo import SystemInfo
   9
  10 from Tools.Directories import resolveFilename, SCOPE_SKIN
  11
  12 import xml.etree.cElementTree
  13
  14 from Screens.Setup import Setup, getSetupTitle
  15
  16 #               <item text="TV-Mode">self.setModeTV()</item>
  17 #               <item text="Radio-Mode">self.setModeRadio()</item>
  18 #               <item text="File-Mode">self.setModeFile()</item>
  19 #                       <item text="Sleep Timer"></item>
  20
  21
  22 # read the menu
  23 mdom = xml.etree.cElementTree.parse(resolveFilename(SCOPE_SKIN, 'menu.xml'))
  24
  25 class boundFunction:
  26         def __init__(self, fnc, *args):
  27                 self.fnc = fnc
  28                 self.args = args
  29         def __call__(self):
  30                 self.fnc(*self.args)
  31
  32 class MenuUpdater:
  33         def __init__(self):
  34                 self.updatedMenuItems = {}
  35
  36         def addMenuItem(self, id, pos, text, module, screen, weight):
  37                 if not self.updatedMenuAvailable(id):
  38                         self.updatedMenuItems[id] = []
  39                 self.updatedMenuItems[id].append([text, pos, module, screen, weight])
  40
  41         def delMenuItem(self, id, pos, text, module, screen, weight):
  42                 self.updatedMenuItems[id].remove([text, pos, module, screen, weight])
  43
  44         def updatedMenuAvailable(self, id):
  45                 return self.updatedMenuItems.has_key(id)
  46
  47         def getUpdatedMenu(self, id):
  48                 return self.updatedMenuItems[id]
  49
  50 menuupdater = MenuUpdater()
  51
  52 class MenuSummary(Screen):
  53         skin = """
  54         <screen position="0,0" size="132,64">
  55                 <widget source="parent.title" render="Label" position="6,4" size="120,21" font="Regular;18" />
  56                 <widget source="parent.menu" render="Label" position="6,25" size="120,21" font="Regular;16">
  57                         <convert type="StringListSelection" />
  58                 </widget>
  59                 <widget source="global.CurrentTime" render="Label" position="56,46" size="82,18" font="Regular;16" >
  60                         <convert type="ClockToText">WithSeconds</convert>
  61                 </widget>
  62         </screen>"""
  63
  64 class Menu(Screen):
  65
  66         ALLOW_SUSPEND = True
  67
  68         def okbuttonClick(self):
  69                 print "okbuttonClick"
  70                 selection = self["menu"].getCurrent()
  71                 if selection is not None:
  72                         selection[1]()
  73
  74         def execText(self, text):
  75                 exec text
  76
  77         def runScreen(self, arg):
  78                 # arg[0] is the module (as string)
  79                 # arg[1] is Screen inside this module
  80                 #        plus possible arguments, as
  81                 #        string (as we want to reference
  82                 #        stuff which is just imported)
  83                 # FIXME. somehow
  84                 if arg[0] != "":
  85                         exec "from " + arg[0] + " import *"
  86
  87                 self.openDialog(*eval(arg[1]))
  88
  89         def nothing(self): #dummy
  90                 pass
  91
  92         def openDialog(self, *dialog):                          # in every layer needed
  93                 self.session.openWithCallback(self.menuClosed, *dialog)
  94
  95         def openSetup(self, dialog):
  96                 self.session.openWithCallback(self.menuClosed, Setup, dialog)
  97
  98         def addMenu(self, destList, node):
  99                 requires = node.get("requires")
 100                 if requires:
 101                         if requires[0] == '!':
 102                                 if SystemInfo.get(requires[1:], False):
 103                                         return
 104                         elif not SystemInfo.get(requires, False):
 105                                 return
 106                 MenuTitle = _(node.get("text", "??").encode("UTF-8"))
 107                 entryID = node.get("entryID", "undefined")
 108                 weight = node.get("weight", 50)
 109                 x = node.get("flushConfigOnClose")
 110                 if x:
 111                         a = boundFunction(self.session.openWithCallback, self.menuClosedWithConfigFlush, Menu, node)
 112                 else:
 113                         a = boundFunction(self.session.openWithCallback, self.menuClosed, Menu, node)
 114                 #TODO add check if !empty(node.childNodes)
 115                 destList.append((MenuTitle, a, entryID, weight))
 116
 117         def menuClosedWithConfigFlush(self, *res):
 118                 configfile.save()
 119                 self.menuClosed(*res)
 120
 121         def menuClosed(self, *res):
 122                 if res and res[0]:
 123                         self.close(True)
 124
 125         def addItem(self, destList, node):
 126                 requires = node.get("requires")
 127                 if requires:
 128                         if requires[0] == '!':
 129                                 if SystemInfo.get(requires[1:], False):
 130                                         return
 131                         elif not SystemInfo.get(requires, False):
 132                                 return
 133                 item_text = node.get("text", "").encode("UTF-8")
 134                 entryID = node.get("entryID", "undefined")
 135                 weight = node.get("weight", 50)
 136                 for x in node:
 137                         if x.tag == 'screen':
 138                                 module = x.get("module")
 139                                 screen = x.get("screen")
 140
 141                                 if screen is None:
 142                                         screen = module
 143
 144                                 print module, screen
 145                                 if module:
 146                                         module = "Screens." + module
 147                                 else:
 148                                         module = ""
 149
 150                                 # check for arguments. they will be appended to the
 151                                 # openDialog call
 152                                 args = x.text or ""
 153                                 screen += ", " + args
 154
 155                                 destList.append((_(item_text or "??"), boundFunction(self.runScreen, (module, screen)), entryID, weight))
 156                                 return
 157                         elif x.tag == 'code':
 158                                 destList.append((_(item_text or "??"), boundFunction(self.execText, x.text), entryID, weight))
 159                                 return
 160                         elif x.tag == 'setup':
 161                                 id = x.get("id")
 162                                 if item_text == "":
 163                                         item_text = _(getSetupTitle(id))
 164                                 else:
 165                                         item_text = _(item_text)
 166                                 destList.append((item_text, boundFunction(self.openSetup, id), entryID, weight))
 167                                 return
 168                 destList.append((item_text, self.nothing, entryID, weight))
 169
 170
 171         def __init__(self, session, parent):
 172                 Screen.__init__(self, session)
 173
 174                 list = []
 175
 176                 menuID = None
 177                 for x in parent:                                                #walk through the actual nodelist
 178                         if x.tag == 'item':
 179                                 item_level = int(x.get("level", 0))
 180                                 if item_level <= config.usage.setup_level.index:
 181                                         self.addItem(list, x)
 182                                         count += 1
 183                         elif x.tag == 'menu':
 184                                 self.addMenu(list, x)
 185                                 count += 1
 186                         elif x.tag == "id":
 187                                 menuID = x.get("val")
 188                                 count = 0
 189
 190                         if menuID is not None:
 191                                 # menuupdater?
 192                                 if menuupdater.updatedMenuAvailable(menuID):
 193                                         for x in menuupdater.getUpdatedMenu(menuID):
 194                                                 if x[1] == count:
 195                                                         list.append((x[0], boundFunction(self.runScreen, (x[2], x[3] + ", ")), x[4]))
 196                                                         count += 1
 197
 198                 if menuID is not None:
 199                         # plugins
 200                         for l in plugins.getPluginsForMenu(menuID):
 201                                 # check if a plugin overrides an existing menu
 202                                 plugin_menuid = l[2]
 203                                 for x in list:
 204                                         if x[2] == plugin_menuid:
 205                                                 list.remove(x)
 206                                                 break
 207                                 list.append((l[0], boundFunction(l[1], self.session), l[2], l[3] or 50))
 208
 209                 # for the skin: first try a menu_<menuID>, then Menu
 210                 self.skinName = [ ]
 211                 if menuID is not None:
 212                         self.skinName.append("menu_" + menuID)
 213                 self.skinName.append("Menu")
 214
 215                 # Sort by Weight
 216                 list.sort(key=lambda x: int(x[3]))
 217
 218                 self["menu"] = List(list)
 219
 220                 self["actions"] = NumberActionMap(["OkCancelActions", "MenuActions", "NumberActions"],
 221                         {
 222                                 "ok": self.okbuttonClick,
 223                                 "cancel": self.closeNonRecursive,
 224                                 "menu": self.closeRecursive,
 225                                 "1": self.keyNumberGlobal,
 226                                 "2": self.keyNumberGlobal,
 227                                 "3": self.keyNumberGlobal,
 228                                 "4": self.keyNumberGlobal,
 229                                 "5": self.keyNumberGlobal,
 230                                 "6": self.keyNumberGlobal,
 231                                 "7": self.keyNumberGlobal,
 232                                 "8": self.keyNumberGlobal,
 233                                 "9": self.keyNumberGlobal
 234                         })
 235
 236                 a = parent.get("title", "").encode("UTF-8") or None
 237                 a = a and _(a)
 238                 if a is None:
 239                         a = _(parent.get("text", "").encode("UTF-8"))
 240                 self["title"] = StaticText(a)
 241                 self.menu_title = a
 242
 243         def keyNumberGlobal(self, number):
 244                 print "menu keyNumber:", number
 245                 # Calculate index
 246                 number -= 1
 247
 248                 if len(self["menu"].list) > number:
 249                         self["menu"].setIndex(number)
 250                         self.okbuttonClick()
 251
 252         def closeNonRecursive(self):
 253                 self.close(False)
 254
 255         def closeRecursive(self):
 256                 self.close(True)
 257
 258         def createSummary(self):
 259                 return MenuSummary
 260
 261 class MainMenu(Menu):
 262         #add file load functions for the xml-file
 263
 264         def __init__(self, *x):
 265                 self.skinName = "Menu"
 266                 Menu.__init__(self, *x)