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