Re: [Rhythmbox-devel] python plugin not found

[gsubes <gsubes gmail com>]

Hi again,

you were right. :) renaming the foler solved the problem.

This is the current working plugin:

-------

deletefile.rb-plugin: 

[RB Plugin]
Loader=python
Module=deletefile
IAge=1
Name=Delete current song from harddisk
Description=Deletes the current song when Alt+Up is pressed.
Authors=gsubes gmail com
Copyright=Copyright © 2009 subes
Website=https://sourceforge.net/users/subes

-------

__init__.py:

#!/usr/bin/python
# coding: UTF-8


import Xlib.X
import rb
import os
from time import sleep
import Xlib
import Xlib.display
import gobject
import gtk
import pynotify
import glib

# TODO:
#   - allow hotkey to be configured via gconf
#       -> process keysyms (https://www.siafoo.net/snippet/239)

class DeleteFilePlugin (rb.Plugin):
    # Alt+Up - get from xbindkeys -k
    delete_key = 111
    delete_mask = 0x8

    numlock_mask = 0x10
    capslock_mask = 0x2
    scrolllock_mask = capslock_mask # TODO: unknown!

    modifier_combinations = (
        delete_mask,
        delete_mask | numlock_mask,
        delete_mask | scrolllock_mask,
        delete_mask | capslock_mask,
        delete_mask | numlock_mask | scrolllock_mask,
        delete_mask | numlock_mask | capslock_mask,
        delete_mask | scrolllock_mask | capslock_mask,
        delete_mask | numlock_mask | scrolllock_mask | capslock_mask)


    display = None
    root = None
    shell = None

    doListen = False

    # init plugin
    def __init__(self):
        rb.Plugin.__init__(self)

    # register hotkey, tell X that we want keyrelease events and start
listening
    def activate(self, shell):
        self.display = Xlib.display.Display()
        self.root = self.display.screen().root
        self.display.allow_events(Xlib.X.AsyncKeyboard,
Xlib.X.CurrentTime)
        self.root.change_attributes(event_mask = Xlib.X.KeyReleaseMask)
        self.shell = shell
        self.register_hotkey()
        self.doListen = True
        gobject.idle_add(self.listen_cb, priority=gobject.PRIORITY_LOW)

    # stop listening, unregister hotkey and clean up
    def deactivate(self, shell):
        self.doListen = False
        self.unregister_hotkey()
        self.display.close()

    # register the hotkey
    def register_hotkey(self):
        for modifier in self.modifier_combinations:
            self.root.grab_key(self.delete_key, modifier, True,
Xlib.X.GrabModeAsync, Xlib.X.GrabModeAsync)

    # unregister the hotkey
    def unregister_hotkey(self):
        for modifier in self.modifier_combinations:
            self.root.ungrab_key(self.delete_key, modifier)


    # callback for listening, checks if the hotkey has been pressed
    def listen_cb(self):
        gtk.gdk.threads_enter()

        if(not self.doListen):
            gtk.gdk.threads_leave()
            return False

        if(self.root.display.pending_events() > 0 and self.doListen):
            event = self.root.display.next_event()
            if event.type == Xlib.X.KeyRelease and event.detail ==
self.delete_key:
                mask = event.state & ~(self.capslock_mask |
self.numlock_mask | self.scrolllock_mask)
                if mask == self.delete_mask:
                    self.delete()

        gtk.gdk.threads_leave()
        return True

    # deletes the current playing file
    def delete(self):
        file = self.shell.props.shell_player.get_playing_path()
        file = file.replace("%20", " ")
        file = file.replace("file://", "")
        if(isinstance(file, str)):
            filename = file.rpartition("/")[2]

            n = pynotify.Notification(filename, "", "user-trash-full")
            n.show()
            try:
                self.shell.props.shell_player.do_next()
            except glib.GError:
                None

            recoversh = "/tmp/"+filename+".sh"
            os.system("echo \"mv '"+filename+"' '"+file+"' && rm \$0\" >
'"+recoversh+"'")
            os.system("chmod +x '"+recoversh+"'")

            os.system("trash '"+file+"' '"+recoversh+"'")
            
-------

It depends on trash-cli. It moves the file to trash and creates a shell
script to recover the file to the original destination. To do this one
has to copy both the <file> and the <file>.sh out of trash and run the
<file>.sh.

Currently I am not interested in developing a GUI/GConf configuration
for this plugin. Though if somebody else is interested in this plugin I
might add this feature on demand.

Thanks for your help.

Am Mittwoch, den 21.10.2009, 12:28 -0400 schrieb Calvin Walton: 
> Hi, I've responsed inline.
> 
> On Wed, Oct 21, 2009 at 10:27, gsubes <gsubes googlemail com> wrote:
> > Hi,
> >
> > I am trying to write a rythmbox plugin that registers a global hotkey
> > and deletes the currently played file when the hotkey is pressed (to get
> > quickly rid of music I want to sort out of my collection).
> > I'm new to python programming and this is my first plugin ever.
> 
> I can't say I'd ever want to delete anything (i tend to use a global
> hotkey to skip songs rather than delete them), but it seems like a
> useful simple plugin.
> 
> > This is the folder i have put the plugin into:
> > /home/<user>/.gnome2/rhythmbox/plugins/DeleteFile/
> >
> > -- There is a deletefile.rb-plugin:
> >
> > [RB Plugin]
> > Loader=python
> > Module=deletefile
> <snip>
> > When I start rhythmbox, the plugin is shown but when I try to enable it,
> > the rhythmbox debug output tells me the following:
> >
> > (16:21:47) [0x2241040] [rb_python_module_init] rb-python-module.c:420:
> > Init of python module
> > ImportError: No module named deletefile
> >
> > (rhythmbox:19790): Rhythmbox-WARNING **: Could not load plugin
> > deletefile
> 
> Here's your problem. In your rb-plugin file, you've listed the plugin
> as the module 'deletefile'. However, it is located in the directory
> 'DeleteFile'! Remember that linux filesystems are case sensitive, you
> have to make sure that they match.
> 
> > Is there some way to properly debug plugins?
> > Maybe you have an idea why the plugin cannot be enabled?
> 
> I unfortunately haven't found any way to debug rhythmbox plugins other
> than enabling the debug option on rhythmbox and adding a bunch of
> debugging print statements. Perhaps someone else knows a better way?
> 
> > Best regards,
> > subes
> 
> Hope that helps.
>