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                 print arg
  96                 if arg[0] != "":
  97                         exec "from " + arg[0] + " import *"
  98
  99                 self.openDialog(*eval(arg[1]))
 100
 101         def nothing(self):                                                                                                                                      #dummy
 102                 pass
 103
 104         def openDialog(self, *dialog):                          # in every layer needed
 105                 self.session.open(*dialog)
 106
 107         def openSetup(self, dialog):
 108                 self.session.open(Setup, dialog)
 109
 110         def addMenu(self, destList, node):
 111                 MenuTitle = _(getValbyAttr(node, "text"))
 112                 if MenuTitle != "":                                                                                                                                     #check for title
 113                         a = boundFunction(self.session.open, Menu, node, node.childNodes)
 114                         #TODO add check if !empty(node.childNodes)
 115                         destList.append((MenuTitle, a))
 116
 117         def addItem(self, destList, node):
 118                 ItemText = _(getValbyAttr(node, "text"))
 119                 if ItemText != "":                                                                                                                                      #check for name
 120                         for x in node.childNodes:
 121                                 if x.nodeType != xml.dom.minidom.Element.nodeType:
 122                                         continue
 123                                 elif x.tagName == 'screen':
 124                                         module = getValbyAttr(x, "module")
 125                                         screen = getValbyAttr(x, "screen")
 126
 127                                         if len(screen) == 0:
 128                                                 screen = module
 129
 130                                         if module != "":
 131                                                 module = "Screens." + module
 132
 133                                         # check for arguments. they will be appended to the
 134                                         # openDialog call
 135                                         args = XMLTools.mergeText(x.childNodes)
 136                                         screen += ", " + args
 137
 138                                         destList.append((ItemText, boundFunction(self.runScreen, (module, screen))))
 139                                         return
 140                                 elif x.tagName == 'code':
 141                                         destList.append((ItemText, boundFunction(self.execText, XMLTools.mergeText(x.childNodes))))
 142                                         return
 143                                 elif x.tagName == 'setup':
 144                                         id = getValbyAttr(x, "id")
 145                                         destList.append((ItemText, boundFunction(self.openSetup, id)))
 146                                         return
 147
 148                         destList.append((ItemText,self.nothing))
 149
 150
 151         def __init__(self, session, parent, childNode):
 152                 Screen.__init__(self, session)
 153
 154                 list = []
 155                 menuID = ""
 156
 157                 for x in childNode:                                                     #walk through the actual nodelist
 158                         if x.nodeType != xml.dom.minidom.Element.nodeType:
 159                             continue
 160                         elif x.tagName == 'item':
 161                                 self.addItem(list, x)
 162                         elif x.tagName == 'menu':
 163                                 self.addMenu(list, x)
 164                         elif x.tagName == "id":
 165                                 menuID = getValbyAttr(x, "val")
 166
 167                 if menuupdater.updatedMenuAvailable(menuID):
 168                         for x in menuupdater.getUpdatedMenu(menuID):
 169                                 list.append((x[0], boundFunction(self.runScreen, (x[1], x[2] + ", "))))
 170
 171                 self["menu"] = MenuList(list)
 172
 173                 self["actions"] = ActionMap(["OkCancelActions", "MenuActions"],
 174                         {
 175                                 "ok": self.okbuttonClick,
 176                                 "cancel": self.close,
 177                                 "menu": self.close
 178                         })
 179
 180                 a = getValbyAttr(parent, "title")
 181                 if a == "":                                                                                                             #if empty use name
 182                         a = _(getValbyAttr(parent, "text"))
 183                 self["title"] = Header(a)
 184
 185 class MainMenu(Menu):
 186         #add file load functions for the xml-file
 187
 188         def __init__(self, *x):
 189                 Menu.__init__(self, *x)
 190                 self.skinName = "Menu"
 191
 192         def openDialog(self, dialog):
 193                 self.session.open(dialog)
 194
 195         def openSetup(self, dialog):
 196                 self.session.open(Setup, dialog)
 197
 198         def setModeTV(self):
 199                 print "set Mode to TV"
 200                 pass
 201
 202         def setModeRadio(self):
 203                 print "set Mode to Radio"
 204                 pass
 205
 206         def setModeFile(self):
 207                 print "set Mode to File"
 208                 pass