terminator/terminatorlib/terminator.py

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#!/usr/bin/python
# Terminator by Chris Jones <cmsj@tenshu.net>
# GPL v2 only
"""terminator.py - class for the master Terminator singleton"""
import copy
import os
import gtk
from borg import Borg
from config import Config
from keybindings import Keybindings
from util import dbg, err
from factory import Factory
from cwd import get_pid_cwd
from version import APP_NAME, APP_VERSION
class Terminator(Borg):
"""master object for the application"""
windows = None
windowtitle = None
terminals = None
groups = None
config = None
keybindings = None
origcwd = None
pid_cwd = None
gnome_client = None
debug_address = None
doing_layout = None
groupsend = None
groupsend_type = {'all':0, 'group':1, 'off':2}
def __init__(self):
"""Class initialiser"""
Borg.__init__(self, self.__class__.__name__)
self.prepare_attributes()
def prepare_attributes(self):
"""Initialise anything that isn't already"""
if not self.windows:
self.windows = []
if not self.terminals:
self.terminals = []
if not self.groups:
self.groups = []
if not self.groupsend:
self.groupsend = self.groupsend_type['group']
if not self.config:
self.config = Config()
if not self.keybindings:
self.keybindings = Keybindings()
self.keybindings.configure(self.config['keybindings'])
if not self.doing_layout:
self.doing_layout = False
if not self.pid_cwd:
self.pid_cwd = get_pid_cwd()
if self.gnome_client is None:
self.attempt_gnome_client()
def set_origcwd(self, cwd):
"""Store the original cwd our process inherits"""
if cwd == '/':
cwd = os.path.expanduser('~')
os.chdir(cwd)
self.origcwd = cwd
def attempt_gnome_client(self):
"""Attempt to find a GNOME Session to register with"""
try:
import gnome
import gnome.ui
self.gnome_program = gnome.init(APP_NAME, APP_VERSION)
self.gnome_client = gnome.ui.master_client()
self.gnome_client.connect_to_session_manager()
self.gnome_client.connect('save-yourself', self.save_yourself)
self.gnome_client.connect('die', self.die)
dbg('GNOME session support enabled and registered')
except ImportError:
self.gnome_client = False
dbg('GNOME session support not available')
def save_yourself(self, *args):
"""Save as much state as possible for the session manager"""
dbg('preparing session manager state')
# FIXME: Implement this
def die(self, *args):
"""Die at the hands of the session manager"""
dbg('session manager asked us to die')
# FIXME: Implement this
def register_window(self, window):
"""Register a new window widget"""
if window not in self.windows:
dbg('Terminator::register_window: registering %s:%s' % (id(window),
type(window)))
self.windows.append(window)
def deregister_window(self, window):
"""de-register a window widget"""
dbg('Terminator::deregister_window: de-registering %s:%s' %
(id(window), type(window)))
if window in self.windows:
self.windows.remove(window)
else:
err('%s is not in registered window list' % window)
if len(self.windows) == 0:
# We have no windows left, we should exit
dbg('no windows remain, quitting')
gtk.main_quit()
def register_terminal(self, terminal):
"""Register a new terminal widget"""
if terminal not in self.terminals:
dbg('Terminator::register_terminal: registering %s:%s' %
(id(terminal), type(terminal)))
self.terminals.append(terminal)
terminal.connect('ungroup-all', self.ungroup_all)
def deregister_terminal(self, terminal):
"""De-register a terminal widget"""
dbg('Terminator::deregister_terminal: de-registering %s:%s' %
(id(terminal), type(terminal)))
self.terminals.remove(terminal)
if len(self.terminals) == 0:
dbg('no terminals remain, destroying all windows')
for window in self.windows:
window.destroy()
else:
dbg('Terminator::deregister_terminal: %d terminals remain' %
len(self.terminals))
def new_window(self, cwd=None):
"""Create a window with a Terminal in it"""
maker = Factory()
window = maker.make('Window')
terminal = maker.make('Terminal')
if cwd:
terminal.set_cwd(cwd)
window.add(terminal)
window.show()
terminal.spawn_child()
return(window, terminal)
def create_layout(self, layoutname):
"""Create all the parts necessary to satisfy the specified layout"""
layout = None
objects = {}
self.doing_layout = True
layout = copy.deepcopy(self.config.layout_get_config(layoutname))
if not layout:
# User specified a non-existent layout. default to one Terminal
err('layout %s not defined' % layout)
raise(KeyError)
# Wind the flat objects into a hierarchy
hierarchy = {}
count = 0
# Loop over the layout until we have consumed it, or hit 1000 loops.
# This is a stupid artificial limit, but it's safe.
while len(layout) > 0 and count < 1000:
count = count + 1
if count == 1000:
err('hit maximum loop boundary. THIS IS VERY LIKELY A BUG')
for obj in layout.keys():
if layout[obj]['type'].lower() == 'window':
hierarchy[obj] = {}
hierarchy[obj]['type'] = 'Window'
hierarchy[obj]['children'] = {}
# Copy any additional keys
for objkey in layout[obj].keys():
if layout[obj][objkey] != '' and not hierarchy[obj].has_key(objkey):
hierarchy[obj][objkey] = layout[obj][objkey]
objects[obj] = hierarchy[obj]
del(layout[obj])
else:
# Now examine children to see if their parents exist yet
if not layout[obj].has_key('parent'):
err('Invalid object: %s' % obj)
del(layout[obj])
continue
if objects.has_key(layout[obj]['parent']):
# Our parent has been created, add ourselves
childobj = {}
childobj['type'] = layout[obj]['type']
childobj['children'] = {}
# Copy over any additional object keys
for objkey in layout[obj].keys():
if not childobj.has_key(objkey):
childobj[objkey] = layout[obj][objkey]
objects[layout[obj]['parent']]['children'][obj] = childobj
objects[obj] = childobj
del(layout[obj])
layout = hierarchy
for windef in layout:
if layout[windef]['type'] != 'Window':
err('invalid layout format. %s' % layout)
raise(ValueError)
dbg('Creating a window')
window, terminal = self.new_window()
window.create_layout(layout[windef])
if layout[windef].has_key('position'):
parts = layout[windef]['position'].split(':')
if len(parts) == 2:
window.move(int(parts[0]), int(parts[1]))
if layout[windef].has_key('size'):
parts = layout[windef]['size']
winx = int(parts[0])
winy = int(parts[1])
if winx > 1 and winy > 1:
window.resize(winx, winy)
def layout_done(self):
"""Layout operations have finished, record that fact"""
self.doing_layout = False
for terminal in self.terminals:
if not terminal.pid:
terminal.spawn_child()
def reconfigure(self):
"""Update configuration for the whole application"""
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if self.config['handle_size'] in xrange(0, 6):
gtk.rc_parse_string("""
style "terminator-paned-style" {
GtkPaned::handle_size = %s
}
class "GtkPaned" style "terminator-paned-style"
""" % self.config['handle_size'])
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gtk.rc_reset_styles(gtk.settings_get_default())
# Cause all the terminals to reconfigure
for terminal in self.terminals:
terminal.reconfigure()
# Reparse our keybindings
self.keybindings.configure(self.config['keybindings'])
# Update tab position if appropriate
maker = Factory()
for window in self.windows:
child = window.get_child()
if maker.isinstance(child, 'Notebook'):
child.configure()
def create_group(self, name):
"""Create a new group"""
if name not in self.groups:
dbg('Terminator::create_group: registering group %s' % name)
self.groups.append(name)
def ungroup_all(self, widget):
"""Remove all groups"""
for terminal in self.terminals:
terminal.set_group(None, None)
self.groups = []
def closegroupedterms(self, group):
"""Close all terminals in a group"""
for terminal in self.terminals:
if terminal.group == group:
terminal.close()
def group_hoover(self):
"""Clean out unused groups"""
if self.config['autoclean_groups']:
inuse = []
todestroy = []
for terminal in self.terminals:
if terminal.group:
if not terminal.group in inuse:
inuse.append(terminal.group)
for group in self.groups:
if not group in inuse:
todestroy.append(group)
dbg('Terminator::group_hoover: %d groups, hoovering %d' %
(len(self.groups), len(todestroy)))
for group in todestroy:
self.groups.remove(group)
def group_emit(self, terminal, group, type, event):
"""Emit to each terminal in a group"""
dbg('Terminator::group_emit: emitting a keystroke for group %s' %
group)
for term in self.terminals:
if term != terminal and term.group == group:
term.vte.emit(type, event)
def all_emit(self, terminal, type, event):
"""Emit to all terminals"""
for term in self.terminals:
if term != terminal:
term.vte.emit(type, event)
def do_enumerate(self, widget, pad):
"""Insert the number of each terminal in a group, into that terminal"""
if pad:
numstr = '%0'+str(len(str(len(self.terminals))))+'d'
else:
numstr = '%d'
for term in self.get_target_terms(widget):
idx = self.terminals.index(term)
term.feed(numstr % (idx + 1))
def get_target_terms(self, widget):
"""Get the terminals we should currently be broadcasting to"""
if self.groupsend == self.groupsend_type['all']:
return(self.terminals)
elif self.groupsend == self.groupsend_type['group']:
termset = []
for term in self.terminals:
if term == widget or (term.group != None and term.group ==
widget.group):
termset.append(term)
return(termset)
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else:
return([widget])
def get_focussed_terminal(self):
"""iterate over all the terminals to find which, if any, has focus"""
for terminal in self.terminals:
if terminal.flags()&gtk.HAS_FOCUS:
return(terminal)
return(None)
def focus_changed(self, widget):
"""We just moved focus to a new terminal"""
for terminal in self.terminals:
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terminal.titlebar.update(widget)
return
def describe_layout(self):
"""Describe our current layout"""
layout = {}
count = 0
for window in self.windows:
parent = ''
count = window.describe_layout(count, parent, layout, 0)
return(layout)
# vim: set expandtab ts=4 sw=4: