lib/python/Screens/Menu.py

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