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 gtk
from borg import Borg
from config import Config
from keybindings import Keybindings
from util import dbg, err, get_top_window
import util
class Terminator(Borg):
"""master object for the application"""
windows = None
windowtitle = None
terminals = None
groups = None
config = None
keybindings = 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'])
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)))
self.windows.remove(window)
if len(self.windows) == 0:
# We have no windows left, we should exit
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)
terminal.connect('navigate', self.navigate_terminal)
terminal.connect('tab-new', self.tab_new)
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:
for window in self.windows:
window.destroy()
else:
dbg('Terminator::deregister_terminal: %d terminals remain' %
len(self.terminals))
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'])
gtk.rc_reset_styles(gtk.settings_get_default())
# Cause all the terminals to reconfigure
for terminal in self.terminals:
terminal.reconfigure()
def tab_new(self, terminal):
"""A terminal asked for a new tab. This function is an indirection
to the Window object"""
window = get_top_window(terminal)
window.tab_new()
def navigate_terminal(self, terminal, direction):
"""Nagivate around the terminals"""
current = self.terminals.index(terminal)
length = len(self.terminals)
next = None
if length <= 1:
return
if direction == 'next':
next = current + 1
if next >= length:
next = 0
elif direction == 'prev':
next = current - 1
if next < 0:
next = length - 1
elif direction in ['left', 'right', 'up', 'down']:
window = get_top_window(terminal)
layout = window.get_visible_terminals()
allocation = terminal.get_allocation()
possibles = []
# Get the co-ordinate of the appropriate edge for this direction
edge = util.get_edge(allocation, direction)
# Find all visible terminals which are, in their entirity, in the
# direction we want to move
for term in layout:
rect = layout[term]
if util.get_nav_possible(edge, rect, direction):
possibles.append(term)
if len(possibles) == 0:
return
# Find out how far away each of the possible terminals is, then
# find the smallest distance. The winning terminals are all of
# those who are that distance away.
offsets = {}
for term in possibles:
rect = layout[term]
offsets[term] = util.get_nav_offset(edge, rect, direction)
keys = offsets.values()
keys.sort()
winners = [k for k, v in offsets.iteritems() if v == keys[0]]
next = self.terminals.index(winners[0])
if len(winners) > 1:
# Break an n-way tie with the cursor position
cursor_x, cursor_y = terminal.get_cursor_position()
cursor_x = cursor_x + allocation.x
cursor_y = cursor_y + allocation.y
for term in winners:
rect = layout[term]
if util.get_nav_tiebreak(direction, cursor_x, cursor_y, rect):
next = self.terminals.index(term)
break;
else:
err('Unknown navigation direction: %s' % direction)
if next is not None:
self.terminals[next].grab_focus()
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 group_tab(self, widget):
"""Group all the terminals in a tab"""
pass
def ungroup_tab(self, widget):
"""Ungroup all the terminals in a tab"""
pass
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
# vim: set expandtab ts=4 sw=4: