Dreamboard

laith.said · 25. April 2007

Hello,

How can I get help on how to use enigma2 calls? for example I have made a plugin that has a list, and I want my code to return the filename the cursor is standing on so that I can use it in an os.system call. I tried to use self.getSelection but it is causing my box to crash :P, here is the piece of code I have (based on FileManger plugin):

Code

def ok(self):
		selection = self["list"].getSelection()
		if selection[1] == True:
			self["list"].changeDir(selection[0])
		else:
                        if isinstance(selection, eServiceReference):
                                selection = selection.getPath()
                        cmd = "/usr/bin/ctorrent -E 0 " + selection
			res = os.system(cmd)
			return (res >> 8)

Thanks in advanced.

Seddi · 26. April 2007

Code

selection = self["list"].getCurrent()

is what you are searching about ... but please ... DONT use os.system because it will break and interrupt enigma2 and you will run into problems inside enigma !
Please use an eConsoleAppContainer instead:

init

Code

self.container=eConsoleAppContainer()
self.container.appClosed.get().append(self.finished)

execute

Code

self.container.execute(self.val)

after the binary has ended, the function "finished" will be called (you can connect it with append, see above). In that way your binary will not stop and break enigma2 .. you can take a look into the tuxtxt starter plugin, it uses the eConsoleAppContainer as well and you will find it on your Box.

laith.said · 26. April 2007

I will check that. thanx.

laith.said · 29. April 2007

m8, I tried that, but I'm still getting a restart in enigma2

I'm doing the following:

Code

def ok(self):
		selection = self["list"].getSelection()
		if selection[1] == True:
			self["list"].changeDir(selection[0])
		else:
                        selection = self["list"].getCurrent()
                        self.container=eConsoleAppContainer()
                        self.container.appClosed.get().append(self.finished)
                        eDBoxLCD.getInstance().lock()
                        eRCInput.getInstance().lock()
                        fbClass.getInstance().lock()
                        self.container.execute("/usr/bin/ctorrent -E 0 "+selection+" >/tmp/selection.ctorrent")


	def finished(self,retval):
                fbClass.getInstance().unlock()
		eRCInput.getInstance().unlock()
		eDBoxLCD.getInstance().unlock()
		self.close()

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enigma2 crash log is telling me:

Code

Traceback (most recent call last):
Traceback (most recent call last):
  File "/usr/lib/enigma2/python/Components/ActionMap.py", line 66, in action
    return ActionMap.action(self, contexts, action)
  File "/usr/lib/enigma2/python/Components/ActionMap.py", line 46, in action
    res = self.actions[action]()
  File "/usr/lib/enigma2/python/Plugins/DemoPlugins/TestPlugin/plugin.py", line 61, in ok
    self.container.execute("/usr/bin/ctorrent -E 0 "+selection+" >/tmp/selection.ctorrent")
TypeError: cannot concatenate 'str' and 'list' objects

Note that I reused def finished as is from tuxtux.py

Any ideas? please.

dcdead · 29. April 2007

You should print out selection and considering the python error message you would see what the problem is (at least it would be very obvious then ;))

3c5x9 · 29. April 2007

self.container.execute("/usr/bin/ctorrent -E 0 "+selection+" >/tmp/selection.ctorrent")

selection is a array.
selection[0] = contains the text of the selection
selection[1] = contains its value

You can not join strings and lists. So change it to

Code

if selection is not None: # if the user presses exit 
      self.container.execute("/usr/bin/ctorrent -E 0 "+selection[1]+" >/tmp/selection.ctorrent")

laith.said · 29. April 2007

Thanks, but it did not help:

Code

Traceback (most recent call last):
  File "/usr/lib/enigma2/python/Components/ActionMap.py", line 66, in action
    return ActionMap.action(self, contexts, action)
  File "/usr/lib/enigma2/python/Components/ActionMap.py", line 46, in action
    res = self.actions[action]()
  File "/usr/lib/enigma2/python/Plugins/DemoPlugins/TestPlugin/plugin.py", line 62, in ok
    self.container.execute("/usr/bin/ctorrent -E 0 "+selection[1]+" >/tmp/selection.ctorrent")
TypeError: cannot concatenate 'str' and 'tuple' objects

I also tried the print thing, but where can I see the print result?

Code

def ok(self):
		selection = self["list"].getSelection()
		if selection[1] == True:
			self["list"].changeDir(selection[0])
		else:
                        selection = self["list"].getCurrent()
                        self.container=eConsoleAppContainer()
                        self.container.appClosed.get().append(self.finished)
                        eDBoxLCD.getInstance().lock()
                        eRCInput.getInstance().lock()
                        fbClass.getInstance().lock()
                        print "Selected", selection[1]
                        self.container.execute("/usr/bin/ctorrent -E 0 "+selection[1]+" >/tmp/selection.ctorrent")

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Reichi · 29. April 2007

TypeError: cannot concatenate 'str' and 'tuple' objects

you can only concetenate object of the same type (strings with string e.g.).
I don't know if it will work but just try a print "Selected", str(selection[1])

3c5x9 · 30. April 2007

Can you show me, how do you fill the list, you are working with? Because, if selction[1] is still a tulpel it seems that you fill the menue with tulpels.

You can get the output of a print-command when you start enigma at the commandline via telnet.

init 4 (to stop the running enigma)
killall -9 enigma2; enigma2& (kills left enigma prozesses and starts enigma in the console, i use this to restart enigma with this)

To start enigma again type
killall -9 enigma2
init 4

laith.said · 30. April 2007

Thanks Guys,

I made the print and the result is:

Zitat

Selected (0, 35, 1, 470, 20, 0, 0, 'myself.ts')

I changed it to selection[1][7]. Now I do not get the crash, but nothing is happening, i.e. the:

Zitat

self.container.execute("/usr/bin/ctorrent -E 0 /hdd/home/ftpuser/"+str(selection[1][7])+" >/tmp/selection.ctorrent &")

is not executing the Linux command! I can see the full command using print but the process is not started when I check ps afterwards. I tried to execute to command on bash directly and it works fine!

Any guidance please?

Also I'd love to know how I can get the path name?

I'm using the code used in FileManger plugin, here is my code:

Python

from enigma import *
from Screens.Screen import Screen
from Screens.MessageBox import MessageBox
from Components.ActionMap import NumberActionMap
from Components.Label import Label
from Components.Input import Input
from Components.GUIComponent import *
from Components.Pixmap import Pixmap
from Components.FileList import FileEntryComponent, FileList
from Plugins.Plugin import PluginDescriptor


import os


class Test(Screen):
	skin = """
		<screen position="100,100" size="550,400" title="Test" >
			<!--widget name="text" position="0,0" size="550,25" font="Regular;20" /-->
			<widget name="list" position="10,0" size="190,250" scrollbarMode="showOnDemand" />
			<widget name="pixmap" position="200,0" size="190,250" alphatest="on" />
		</screen>"""
	def __init__(self, session, args = None):
		self.skin = Test.skin
		Screen.__init__(self, session)


		self["list"] = FileList("/", matchingPattern = "^.*\.(png|avi|mp3|mpeg|ts|tor|torrent)", useServiceRef = True)
		self["pixmap"] = Pixmap()

		self["actions"] = NumberActionMap(["WizardActions", "InputActions"],
		{
			"ok": self.ok,
			"back": self.close,
			"1": self.keyNumberGlobal,
			"2": self.keyNumberGlobal,
			"3": self.keyNumberGlobal,
			"4": self.keyNumberGlobal,
			"5": self.keyNumberGlobal,
			"6": self.keyNumberGlobal,
			"7": self.keyNumberGlobal,
			"8": self.keyNumberGlobal,
			"9": self.keyNumberGlobal,
			"0": self.keyNumberGlobal
		}, -1)

	def keyLeft(self):
		self["text"].left()

	def keyRight(self):
		self["text"].right()

	def ok(self):
		selection = self["list"].getSelection()
		if selection[1] == True:
			self["list"].changeDir(selection[0])
		else:
                        selection = self["list"].getCurrent()
                        self.container=eConsoleAppContainer()
                        self.container.appClosed.get().append(self.finished)
                        eDBoxLCD.getInstance().lock()
                        eRCInput.getInstance().lock()
                        fbClass.getInstance().lock()
                        print "/usr/bin/ctorrent -E 0 /hdd/home/ftpuser/"+str(selection[1][7])+" >/tmp/selection.ctorrent &"
                        self.container.execute("/usr/bin/ctorrent -E 0 /hdd/home/ftpuser/"+str(selection[1][7])+" >/tmp/selection.ctorrent &")


	def finished(self,retval):
		fbClass.getInstance().unlock()
		eRCInput.getInstance().unlock()
		eDBoxLCD.getInstance().unlock()
		self.close()

	def keyNumberGlobal(self, number):
		print "pressed", number
		self["text"].number(number)


def main(session, **kwargs):
	session.open(Test)

def Plugins(**kwargs):
 	return [PluginDescriptor(name="bit torrent client", description="allows starting bittorrent downloads", where = PluginDescriptor.WHERE_PLUGINMENU, fnc=main),
			PluginDescriptor(name="bit torrent client", description="allows starting bittorrent downloads", where = PluginDescriptor.WHERE_EXTENSIONSMENU, fnc=main)]

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