lib/python/Screens/Menu.py

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