lib/python/Screens/Menu.py

   1 from Screen import *
   2 from Components.MenuList import MenuList
   3 from Components.ActionMap import ActionMap
   4 from Components.Header import Header
   5 from Components.Button import Button
   6 from Components.Label import Label
   7 from Components.ProgressBar import ProgressBar
   8
   9 from enigma import quitMainloop
  10
  11 import xml.dom.minidom
  12 from xml.dom import EMPTY_NAMESPACE
  13 from skin import elementsWithTag
  14
  15 from Screens.Setup import *
  16
  17 from Tools import XMLTools
  18
  19 # some screens
  20 def doGlobal(screen):
  21         screen["clock"] = Clock()
  22
  23
  24 #               <item text="TV-Mode">self.setModeTV()</item>
  25 #               <item text="Radio-Mode">self.setModeRadio()</item>
  26 #               <item text="File-Mode">self.setModeFile()</item>
  27 #               <item text="Scart">self.openDialog(ScartLoopThrough)</item>
  28 #                       <item text="Sleep Timer"></item>
  29
  30
  31 # read the menu
  32 try:
  33         # first we search in the current path
  34         menufile = file('data/menu.xml', 'r')
  35 except IOError:
  36         # if not found in the current path, we use the global datadir-path
  37         menufile = file('/usr/share/enigma2/menu.xml', 'r')
  38 mdom = xml.dom.minidom.parseString(menufile.read())
  39 menufile.close()
  40
  41
  42 def getValbyAttr(x, attr):
  43         for p in range(x.attributes.length):
  44                 a = x.attributes.item(p)
  45                 attrib = str(a.name)
  46                 value = str(a.value)
  47                 if attrib == attr:
  48                         return value
  49
  50         return ""
  51
  52 class boundFunction:
  53         def __init__(self, fnc, *args):
  54                 self.fnc = fnc
  55                 self.args = args
  56         def __call__(self):
  57                 self.fnc(*self.args)
  58
  59 class MenuUpdater:
  60         def __init__(self):
  61                 self.updatedMenuItems = {}
  62
  63         def addMenuItem(self, id, text, module, screen):
  64                 if not self.updatedMenuAvailable(id):
  65                         self.updatedMenuItems[id] = []
  66                 self.updatedMenuItems[id].append([text, module, screen])
  67
  68         def delMenuItem(self, id, text, module, screen):
  69                 self.updatedMenuItems[id].remove([text, module, screen])
  70
  71         def updatedMenuAvailable(self, id):
  72                 return self.updatedMenuItems.has_key(id)
  73
  74         def getUpdatedMenu(self, id):
  75                 return self.updatedMenuItems[id]
  76
  77 menuupdater = MenuUpdater()
  78
  79 class Menu(Screen):
  80         def okbuttonClick(self):
  81                 print "okbuttonClick"
  82                 selection = self["menu"].getCurrent()
  83                 selection[1]()
  84
  85         def execText(self, text):
  86                 exec text
  87
  88         def runScreen(self, arg):
  89                 # arg[0] is the module (as string)
  90                 # arg[1] is Screen inside this module
  91                 #        plus possible arguments, as
  92                 #        string (as we want to reference
  93                 #        stuff which is just imported)
  94                 # FIXME. somehow.
  95                 if arg[0] != "":
  96                         exec "from " + arg[0] + " import *"
  97
  98                 self.openDialog(*eval(arg[1]))
  99
 100         def nothing(self):                                                                                                                                      #dummy
 101                 pass
 102
 103         def openDialog(self, *dialog):                          # in every layer needed
 104                 self.session.open(*dialog)
 105
 106         def openSetup(self, dialog):
 107                 self.session.open(Setup, dialog)
 108
 109         def addMenu(self, destList, node):
 110                 MenuTitle = _(getValbyAttr(node, "text"))
 111                 if MenuTitle != "":                                                                                                                                     #check for title
 112                         a = boundFunction(self.session.open, Menu, node, node.childNodes)
 113                         #TODO add check if !empty(node.childNodes)
 114                         destList.append((MenuTitle, a))
 115
 116         def addItem(self, destList, node):
 117                 ItemText = _(getValbyAttr(node, "text"))
 118                 if ItemText != "":                                                                                                                                      #check for name
 119                         for x in node.childNodes:
 120                                 if x.nodeType != xml.dom.minidom.Element.nodeType:
 121                                         continue
 122                                 elif x.tagName == 'screen':
 123                                         module = "Screens." + getValbyAttr(x, "module")
 124                                         screen = getValbyAttr(x, "screen")
 125
 126                                         if len(screen) == 0:
 127                                                 screen = module
 128
 129                                         # check for arguments. they will be appended to the
 130                                         # openDialog call
 131                                         args = XMLTools.mergeText(x.childNodes)
 132                                         screen += ", " + args
 133
 134                                         destList.append((ItemText, boundFunction(self.runScreen, (module, screen))))
 135                                         return
 136                                 elif x.tagName == 'code':
 137                                         destList.append((ItemText, boundFunction(self.execText, XMLTools.mergeText(x.childNodes))))
 138                                         return
 139                                 elif x.tagName == 'setup':
 140                                         id = getValbyAttr(x, "id")
 141                                         destList.append((ItemText, boundFunction(self.openSetup, id)))
 142                                         return
 143
 144                         destList.append((ItemText,self.nothing))
 145
 146
 147         def __init__(self, session, parent, childNode):
 148                 Screen.__init__(self, session)
 149
 150                 list = []
 151                 menuID = ""
 152
 153                 for x in childNode:                                                     #walk through the actual nodelist
 154                         if x.nodeType != xml.dom.minidom.Element.nodeType:
 155                             continue
 156                         elif x.tagName == 'item':
 157                                 self.addItem(list, x)
 158                         elif x.tagName == 'menu':
 159                                 self.addMenu(list, x)
 160                         elif x.tagName == "id":
 161                                 menuID = getValbyAttr(x, "val")
 162
 163                 if menuupdater.updatedMenuAvailable(menuID):
 164                         for x in menuupdater.getUpdatedMenu(menuID):
 165                                 list.append((x[0], boundFunction(self.runScreen, (x[1], x[2] + ", "))))
 166
 167                 self["menu"] = MenuList(list)
 168
 169                 self["actions"] = ActionMap(["OkCancelActions", "MenuActions"],
 170                         {
 171                                 "ok": self.okbuttonClick,
 172                                 "cancel": self.close,
 173                                 "menu": self.close
 174                         })
 175
 176                 a = getValbyAttr(parent, "title")
 177                 if a == "":                                                                                                             #if empty use name
 178                         a = _(getValbyAttr(parent, "text"))
 179                 self["title"] = Header(a)
 180
 181 class MainMenu(Menu):
 182         #add file load functions for the xml-file
 183
 184         def __init__(self, *x):
 185                 Menu.__init__(self, *x)
 186                 self.skinName = "Menu"
 187
 188         def openDialog(self, dialog):
 189                 self.session.open(dialog)
 190
 191         def openSetup(self, dialog):
 192                 self.session.open(Setup, dialog)
 193
 194         def setModeTV(self):
 195                 print "set Mode to TV"
 196                 pass
 197
 198         def setModeRadio(self):
 199                 print "set Mode to Radio"
 200                 pass
 201
 202         def setModeFile(self):
 203                 print "set Mode to File"
 204                 pass