58 lines
2.0 KiB
Python
Executable File
58 lines
2.0 KiB
Python
Executable File
#!/usr/bin/python
|
|
# Terminator by Chris Jones <cmsj@tenshu.net>
|
|
# GPL v2 only
|
|
"""Simple management of Gtk Widget signal handlers"""
|
|
|
|
from util import dbg, err
|
|
|
|
class Signalman(object):
|
|
"""Class providing glib signal tracking and management"""
|
|
|
|
cnxids = None
|
|
|
|
def __init__(self):
|
|
"""Class initialiser"""
|
|
self.cnxids = {}
|
|
|
|
def __del__(self):
|
|
"""Class destructor. This is only used to check for stray signals"""
|
|
if len(self.cnxids.keys()) > 0:
|
|
dbg('Remaining signals: %s' % self.cnxids)
|
|
|
|
def new(self, widget, signal, handler, *args):
|
|
"""Register a new signal on a widget"""
|
|
if not self.cnxids.has_key(widget):
|
|
dbg('creating new bucket for %s' % type(widget))
|
|
self.cnxids[widget] = {}
|
|
|
|
if self.cnxids[widget].has_key(signal):
|
|
err('%s already has a handler for %s' % (id(widget), signal))
|
|
|
|
self.cnxids[widget][signal] = widget.connect(signal, handler, *args)
|
|
dbg('connected %s::%s to %s' % (type(widget), signal, handler))
|
|
|
|
def remove_signal(self, widget, signal):
|
|
"""Remove a signal handler"""
|
|
if not self.cnxids.has_key(widget):
|
|
dbg('%s is not registered' % widget)
|
|
return
|
|
if not self.cnxids[widget].has_key(signal):
|
|
dbg('%s not registered for %s' % (signal, type(widget)))
|
|
return
|
|
dbg('removing %s::%s' % (type(widget), signal))
|
|
widget.disconnect(self.cnxids[widget][signal])
|
|
del(self.cnxids[widget][signal])
|
|
if len(self.cnxids[widget].keys()) == 0:
|
|
dbg('no more signals for widget')
|
|
del(self.cnxids[widget])
|
|
|
|
def remove_widget(self, widget):
|
|
"""Remove all signal handlers for a widget"""
|
|
if not self.cnxids.has_key(widget):
|
|
dbg('%s not registered' % widget)
|
|
return
|
|
signals = self.cnxids[widget].keys()
|
|
for signal in signals:
|
|
self.remove_signal(widget, signal)
|
|
|