use cElementTree instead of minidom for xml parsing (thx to Moritz Venn)
[vuplus_dvbapp] / lib / python / Screens / Menu.py
1 from Screen import Screen
2 from Components.Sources.List import List
3 from Components.ActionMap import NumberActionMap
4 from Components.Sources.StaticText import StaticText
5 from Components.config import configfile
6 from Components.PluginComponent import plugins
7 from Components.config import config
8 from Components.SystemInfo import SystemInfo
9
10 from Tools.Directories import resolveFilename, SCOPE_SKIN
11
12 import xml.etree.cElementTree
13
14 from Screens.Setup import Setup, getSetupTitle
15
16 #               <item text="TV-Mode">self.setModeTV()</item>
17 #               <item text="Radio-Mode">self.setModeRadio()</item>
18 #               <item text="File-Mode">self.setModeFile()</item>
19 #                       <item text="Sleep Timer"></item>
20
21
22 # read the menu
23 mdom = xml.etree.cElementTree.parse(resolveFilename(SCOPE_SKIN, 'menu.xml'))
24
25 class boundFunction:
26         def __init__(self, fnc, *args):
27                 self.fnc = fnc
28                 self.args = args
29         def __call__(self):
30                 self.fnc(*self.args)
31                 
32 class MenuUpdater:
33         def __init__(self):
34                 self.updatedMenuItems = {}
35         
36         def addMenuItem(self, id, pos, text, module, screen, weight):
37                 if not self.updatedMenuAvailable(id):
38                         self.updatedMenuItems[id] = []
39                 self.updatedMenuItems[id].append([text, pos, module, screen, weight])
40         
41         def delMenuItem(self, id, pos, text, module, screen, weight):
42                 self.updatedMenuItems[id].remove([text, pos, module, screen, weight])
43         
44         def updatedMenuAvailable(self, id):
45                 return self.updatedMenuItems.has_key(id)
46         
47         def getUpdatedMenu(self, id):
48                 return self.updatedMenuItems[id]
49
50 menuupdater = MenuUpdater()
51
52 class MenuSummary(Screen):
53         skin = """
54         <screen position="0,0" size="132,64">
55                 <widget source="parent.title" render="Label" position="6,4" size="120,21" font="Regular;18" />
56                 <widget source="parent.menu" render="Label" position="6,25" size="120,21" font="Regular;16">
57                         <convert type="StringListSelection" />
58                 </widget>
59                 <widget source="global.CurrentTime" render="Label" position="56,46" size="82,18" font="Regular;16" >
60                         <convert type="ClockToText">WithSeconds</convert>
61                 </widget>
62         </screen>"""
63
64         def __init__(self, session, parent):
65                 Screen.__init__(self, session, parent)
66
67 class Menu(Screen):
68
69         ALLOW_SUSPEND = True
70
71         def okbuttonClick(self):
72                 print "okbuttonClick"
73                 selection = self["menu"].getCurrent()
74                 if selection is not None:
75                         selection[1]()
76
77         def execText(self, text):
78                 exec text
79
80         def runScreen(self, arg):
81                 # arg[0] is the module (as string)
82                 # arg[1] is Screen inside this module 
83                 #        plus possible arguments, as 
84                 #        string (as we want to reference 
85                 #        stuff which is just imported)
86                 # FIXME. somehow
87                 if arg[0] != "":
88                         exec "from " + arg[0] + " import *"
89
90                 self.openDialog(*eval(arg[1]))
91
92         def nothing(self): #dummy
93                 pass
94
95         def openDialog(self, *dialog):                          # in every layer needed
96                 self.session.openWithCallback(self.menuClosed, *dialog)
97
98         def openSetup(self, dialog):
99                 self.session.openWithCallback(self.menuClosed, Setup, dialog)
100
101         def addMenu(self, destList, node):
102                 requires = node.get("requires")
103                 if requires and not SystemInfo.get(requires, False):
104                         return
105                 MenuTitle = _(node.get("text", "??").encode("UTF-8"))
106                 entryID = node.get("entryID", "undefined")
107                 weight = node.get("weight", 50)
108                 x = node.get("flushConfigOnClose")
109                 if x:
110                         a = boundFunction(self.session.openWithCallback, self.menuClosedWithConfigFlush, Menu, node)
111                 else:
112                         a = boundFunction(self.session.openWithCallback, self.menuClosed, Menu, node)
113                 #TODO add check if !empty(node.childNodes)
114                 destList.append((MenuTitle, a, entryID, weight))
115
116         def menuClosedWithConfigFlush(self, *res):
117                 configfile.save()
118                 self.menuClosed(*res)
119
120         def menuClosed(self, *res):
121                 if len(res) and res[0]:
122                         self.close(True)
123
124         def addItem(self, destList, node):
125                 requires = node.get("requires")
126                 if requires and not SystemInfo.get(requires, False):
127                         return
128                 item_text = node.get("text", "").encode("UTF-8")
129                 entryID = node.get("entryID", "undefined")
130                 weight = node.get("weight", 50)
131                 for x in node:
132                         if x.tag == 'screen':
133                                 module = x.get("module")
134                                 screen = x.get("screen")
135
136                                 if screen is None:
137                                         screen = module
138
139                                 print module, screen
140                                 if module:
141                                         module = "Screens." + module
142                                 else:
143                                         module = ""
144
145                                 # check for arguments. they will be appended to the
146                                 # openDialog call
147                                 args = x.text or ""
148                                 screen += ", " + args
149
150                                 destList.append((_(item_text or "??"), boundFunction(self.runScreen, (module, screen)), entryID, weight))
151                                 return
152                         elif x.tag == 'code':
153                                 destList.append((_(item_text or "??"), boundFunction(self.execText, x.text), entryID, weight))
154                                 return
155                         elif x.tag == 'setup':
156                                 id = x.get("id")
157                                 if item_text == "":
158                                         item_text = _(getSetupTitle(id)) + "..."
159                                 else:
160                                         item_text = _(item_text)
161                                 destList.append((item_text, boundFunction(self.openSetup, id), entryID, weight))
162                                 return
163                 destList.append((item_text, self.nothing, entryID, weight))
164
165
166         def __init__(self, session, parent):
167                 Screen.__init__(self, session)
168                 
169                 list = []
170                 
171                 menuID = None
172                 for x in parent:                                                #walk through the actual nodelist
173                         if x.tag == 'item':
174                                 item_level = int(x.get("level", 0))
175                                 if item_level <= config.usage.setup_level.index:
176                                         self.addItem(list, x)
177                                         count += 1
178                         elif x.tag == 'menu':
179                                 self.addMenu(list, x)
180                                 count += 1
181                         elif x.tag == "id":
182                                 menuID = x.get("val")
183                                 count = 0
184
185                         if menuID is not None:
186                                 # menuupdater?
187                                 if menuupdater.updatedMenuAvailable(menuID):
188                                         for x in menuupdater.getUpdatedMenu(menuID):
189                                                 if x[1] == count:
190                                                         list.append((x[0], boundFunction(self.runScreen, (x[2], x[3] + ", ")), x[4]))
191                                                         count += 1
192
193                 if menuID is not None:
194                         # plugins
195                         for l in plugins.getPluginsForMenu(menuID):
196                                 # check if a plugin overrides an existing menu
197                                 plugin_menuid = l[2]
198                                 for x in list:
199                                         if x[2] == plugin_menuid:
200                                                 list.remove(x)
201                                                 break
202                                 list.append((l[0], boundFunction(l[1], self.session), l[2], l[3] or 50))
203
204                 # for the skin: first try a menu_<menuID>, then Menu
205                 self.skinName = [ ]
206                 if menuID is not None:
207                         self.skinName.append("menu_" + menuID)
208                 self.skinName.append("Menu")
209
210                 # Sort by Weight
211                 list.sort(key=lambda x: int(x[3]))
212
213                 self["menu"] = List(list)
214
215                 self["actions"] = NumberActionMap(["OkCancelActions", "MenuActions", "NumberActions"],
216                         {
217                                 "ok": self.okbuttonClick,
218                                 "cancel": self.closeNonRecursive,
219                                 "menu": self.closeRecursive,
220                                 "1": self.keyNumberGlobal,
221                                 "2": self.keyNumberGlobal,
222                                 "3": self.keyNumberGlobal,
223                                 "4": self.keyNumberGlobal,
224                                 "5": self.keyNumberGlobal,
225                                 "6": self.keyNumberGlobal,
226                                 "7": self.keyNumberGlobal,
227                                 "8": self.keyNumberGlobal,
228                                 "9": self.keyNumberGlobal
229                         })
230
231                 a = parent.get("title", "").encode("UTF-8") or None
232                 a = a and _(a)
233                 if a is None:
234                         a = _(parent.get("text", "").encode("UTF-8"))
235                 self["title"] = StaticText(a)
236                 self.menu_title = a
237
238         def keyNumberGlobal(self, number):
239                 print "menu keyNumber:", number
240                 # Calculate index
241                 number -= 1
242
243                 if len(self["menu"].list) > number:
244                         self["menu"].setIndex(number)
245                         self.okbuttonClick()
246
247         def closeNonRecursive(self):
248                 self.close(False)
249
250         def closeRecursive(self):
251                 self.close(True)
252
253         def createSummary(self):
254                 return MenuSummary
255
256 class MainMenu(Menu):
257         #add file load functions for the xml-file
258         
259         def __init__(self, *x):
260                 self.skinName = "Menu"
261                 Menu.__init__(self, *x)