5 # some helper classes first:
13 def __init__(self, order):
16 def produceHTML(self):
18 for name in self.order:
19 res += self[name].produceHTML()
27 def createGUIScreen(self, parent):
28 for (name, val) in self.items():
29 if isinstance(val, GUIComponent):
30 val.GUIcreate(parent, None)
32 def deleteGUIScreen(self):
33 for (name, val) in self.items():
34 if isinstance(val, GUIComponent):
41 # note: you'll probably run into this assert. if this happens, don't panic!
42 # yes, it's evil. I told you that programming in python is just fun, and
43 # suddently, you have to care about things you don't even know.
45 # but calm down, the solution is easy, at least on paper:
47 # Each Component, which is a GUIComponent, owns references to each
48 # instantiated eWidget (namely in screen.data[name]["instance"], in case
50 # on deleteGUIscreen, all eWidget *must* (!) be deleted (otherwise,
51 # well, problems appear. I don't want to go into details too much,
52 # but this would be a memory leak anyway.)
53 # The assert beyond checks for that. It asserts that the corresponding
54 # eWidget is about to be removed (i.e., that the refcount becomes 0 after
55 # running deleteGUIscreen).
56 # (You might wonder why the refcount is checked for 2 and not for 1 or 0 -
57 # one reference is still hold by the local variable 'w', another one is
58 # hold be the function argument to sys.getrefcount itself. So only if it's
59 # 2 at this point, the object will be destroyed after leaving deleteGUIscreen.)
61 # Now, how to fix this problem? You're holding a reference somewhere. (References
62 # can only be hold from Python, as eWidget itself isn't related to the c++
63 # way of having refcounted objects. So it must be in python.)
65 # It could be possible that you're calling deleteGUIscreen trough a call of
66 # a PSignal. For example, you could try to call screen.doClose() in response
67 # to a Button::click. This will fail. (It wouldn't work anyway, as you would
68 # remove a dialog while running it. It never worked - enigma1 just set a
69 # per-mainloop variable on eWidget::close() to leave the exec()...)
70 # That's why Session supports delayed closes. Just call Session.close() and
73 # Another reason is that you just stored the data["instance"] somewhere. or
74 # added it into a notifier list and didn't removed it.
76 # If you can't help yourself, just ask me. I'll be glad to help you out.
77 # Sorry for not keeping this code foolproof. I really wanted to archive
78 # that, but here I failed miserably. All I could do was to add this assert.
79 # assert sys.getrefcount(w) == 2, "too many refs hold to " + str(w)
82 self.deleteGUIScreen()
97 """VariableText can be used for components which have a variable text, based on any widget with setText call"""
103 def setText(self, text):
106 self.instance.setText(self.message)
111 def GUIcreate(self, parent, skindata):
112 self.instance = self.createWidget(parent, skindata)
113 self.instance.setText(self.message)
116 self.removeWidget(self.instance)
119 def removeWidget(self, instance):
123 """VariableValue can be used for components which have a variable value (like eSlider), based on any widget with setValue call"""
129 def setValue(self, value):
132 self.instance.setValue(self.value)
137 def GUIcreate(self, parent, skindata):
138 self.instance = self.createWidget(parent, skindata)
139 self.instance.setValue(self.value)
142 self.removeWidget(self.instance)
145 def removeWidget(self, instance):
148 # now some "real" components:
150 class Clock(HTMLComponent, GUIComponent, VariableText):
152 VariableText.__init__(self)
153 GUIComponent.__init__(self)
156 self.clockTimer = eTimer()
157 self.clockTimer.timeout.get().append(self.doClock)
158 self.clockTimer.start(1000)
163 self.setText("%2d:%02d:%02d" % (t[3], t[4], t[5]))
165 # realisierung als GUI
166 def createWidget(self, parent, skindata):
167 return eLabel(parent)
169 def removeWidget(self, w):
173 def produceHTML(self):
174 return self.getText()
176 class Button(HTMLComponent, GUIComponent, VariableText):
177 def __init__(self, text="", onClick = [ ]):
178 GUIComponent.__init__(self)
179 VariableText.__init__(self)
181 self.onClick = onClick
184 for x in self.onClick:
189 # self.instance.hide()
193 # self.instance.show()
197 def produceHTML(self):
198 return "<input type=\"submit\" text=\"" + self.getText() + "\">\n"
201 def createWidget(self, parent, skindata):
203 g.selected.get().append(self.push)
206 def removeWidget(self, w):
207 w.selected.get().remove(self.push)
209 class Label(HTMLComponent, GUIComponent, VariableText):
210 def __init__(self, text=""):
211 GUIComponent.__init__(self)
212 VariableText.__init__(self)
216 def produceHTML(self):
217 return self.getText()
220 def createWidget(self, parent, skindata):
221 return eLabel(parent)
223 class Header(HTMLComponent, GUIComponent, VariableText):
225 def __init__(self, message):
226 GUIComponent.__init__(self)
227 VariableText.__init__(self)
228 self.setText(message)
230 def produceHTML(self):
231 return "<h2>" + self.getText() + "</h2>\n"
233 def createWidget(self, parent, skindata):
237 class VolumeBar(HTMLComponent, GUIComponent, VariableValue):
240 GUIComponent.__init__(self)
241 VariableValue.__init__(self)
243 def createWidget(self, parent, skindata):
248 # a general purpose progress bar
249 class ProgressBar(HTMLComponent, GUIComponent, VariableValue):
251 GUIComponent.__init__(self)
252 VariableValue.__init__(self)
254 def createWidget(self, parent, skindata):
259 class MenuList(HTMLComponent, GUIComponent):
260 def __init__(self, list):
261 GUIComponent.__init__(self)
262 self.l = eListboxPythonStringContent()
265 def getCurrent(self):
266 return self.l.getCurrentSelection()
268 def GUIcreate(self, parent, skindata):
269 self.instance = eListbox(parent)
270 self.instance.setContent(self.l)
273 self.instance.setContent(None)
276 class ServiceList(HTMLComponent, GUIComponent):
278 GUIComponent.__init__(self)
279 self.l = eListboxServiceContent()
281 def getCurrent(self):
282 r = eServiceReference()
286 def GUIcreate(self, parent, skindata):
287 self.instance = eListbox(parent)
288 self.instance.setContent(self.l)
293 def setRoot(self, root):
297 def clearMarked(self):
300 def isMarked(self, ref):
301 return self.l.isMarked(ref)
303 def addMarked(self, ref):
304 self.l.addMarked(ref)
306 def removeMarked(self, ref):
307 self.l.removeMarked(ref)
317 1: "error while scanning",
318 2: "no resource manager",
323 def scanStatusChanged(self):
324 if self.state == self.Running:
325 self.progressbar.setValue(self.scan.getProgress())
326 if self.scan.isDone():
327 errcode = self.scan.getError()
330 self.state = self.Done
332 self.state = self.Error
333 self.errorcode = errcode
335 self.text.setText("scan in progress - %d %% done!\n%d services found!" % (self.scan.getProgress(), self.scan.getNumServices()))
337 if self.state == self.Done:
338 self.text.setText("scan done!")
340 if self.state == self.Error:
341 self.text.setText("ERROR - failed to scan (%s)!" % (self.Errors[self.errorcode]) )
343 def __init__(self, progressbar, text):
344 self.progressbar = progressbar
346 self.scan = eComponentScan()
347 self.state = self.Idle
348 self.scanStatusChanged()
351 self.scan.statusChanged.get().append(self.scanStatusChanged)
352 self.state = self.Running
353 if self.scan.start():
354 self.state = self.Error
356 self.scanStatusChanged()
359 self.scan.statusChanged.get().remove(self.scanStatusChanged)
360 if not self.isDone():
361 print "*** warning *** scan was not finished!"
364 print "state is %d " % (self.state)
365 return self.state == self.Done or self.state == self.Error
368 def __init__(self, contexts = [ ], actions = { }, prio=0):
369 self.actions = actions
370 self.contexts = contexts
372 self.p = eActionMapPtr()
373 eActionMap.getInstance(self.p)
376 for ctx in self.contexts:
377 self.p.bindAction(ctx, self.prio, self.action)
380 for ctx in self.contexts:
381 self.p.unbindAction(ctx, self.action)
383 def action(self, context, action):
384 print " ".join(("action -> ", context, action))
386 self.actions[action]()
388 print "unknown action %s/%s! typo in keymap?" % (context, action)
390 class PerServiceDisplay(GUIComponent, VariableText):
391 """Mixin for building components which display something which changes on navigation events, for example "service name" """
393 def __init__(self, navcore, eventmap):
394 GUIComponent.__init__(self)
395 VariableText.__init__(self)
396 self.eventmap = eventmap
397 navcore.m_event.get().append(self.event)
398 self.navcore = navcore
400 # start with stopped state, so simulate that
401 self.event(pNavigation.evStopService)
404 # loop up if we need to handle this event
405 if self.eventmap.has_key(ev):
409 def createWidget(self, parent, skindata):
410 # by default, we use a label to display our data.
414 class EventInfo(PerServiceDisplay):
420 def __init__(self, navcore, now_or_next):
421 # listen to evUpdatedEventInfo and evStopService
422 # note that evStopService will be called once to establish a known state
423 self.now_or_next = now_or_next
424 PerServiceDisplay.__init__(self, navcore,
426 pNavigation.evUpdatedEventInfo: self.ourEvent,
427 pNavigation.evStopService: self.stopEvent
431 info = iServiceInformationPtr()
432 service = iPlayableServicePtr()
434 if not self.navcore.getCurrentService(service):
435 if not service.info(info):
436 ev = eServiceEventPtr()
437 info.getEvent(ev, self.now_or_next & 1)
438 if self.now_or_next & 2:
439 self.setText("%d min" % (ev.m_duration / 60))
441 self.setText(ev.m_event_name)
442 print "new event info in EventInfo! yeah!"
446 ("waiting for event data...", "", "--:--", "--:--")[self.now_or_next]);
448 class ServiceName(PerServiceDisplay):
449 def __init__(self, navcore):
450 PerServiceDisplay.__init__(self, navcore,
452 pNavigation.evNewService: self.newService,
453 pNavigation.evStopService: self.stopEvent
456 def newService(self):
457 info = iServiceInformationPtr()
458 service = iPlayableServicePtr()
460 if not self.navcore.getCurrentService(service):
461 if not service.info(info):
462 self.setText("no name known, but it should be here :)")