terminator/terminatorlib/terminator.py

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#!/usr/bin/env python2
# Terminator by Chris Jones <cmsj@tenshu.net>
# GPL v2 only
"""terminator.py - class for the master Terminator singleton"""
import copy
import os
from gi.repository import Gtk, Gdk
from borg import Borg
from config import Config
from keybindings import Keybindings
from util import dbg, err, enumerate_descendants
from factory import Factory
from cwd import get_pid_cwd
from version import APP_NAME, APP_VERSION
def eventkey2gdkevent(eventkey): # FIXME FOR GTK3: is there a simpler way of casting from specific EventKey to generic (union) GdkEvent?
gdkevent = Gdk.Event.new(eventkey.type)
gdkevent.key.window = eventkey.window
gdkevent.key.send_event = eventkey.send_event
gdkevent.key.time = eventkey.time
gdkevent.key.state = eventkey.state
gdkevent.key.keyval = eventkey.keyval
gdkevent.key.length = eventkey.length
gdkevent.key.string = eventkey.string
gdkevent.key.hardware_keycode = eventkey.hardware_keycode
gdkevent.key.group = eventkey.group
gdkevent.key.is_modifier = eventkey.is_modifier
return gdkevent
class Terminator(Borg):
"""master object for the application"""
windows = None
launcher_windows = None
windowtitle = None
terminals = None
groups = None
config = None
keybindings = None
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style_provider = None
last_focused_term = None
origcwd = None
dbus_path = None
dbus_name = None
pid_cwd = None
gnome_client = None
debug_address = None
ibus_running = None
doing_layout = None
layoutname = None
last_active_window = 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.launcher_windows:
self.launcher_windows = []
if not self.terminals:
self.terminals = []
if not self.groups:
self.groups = []
if not self.config:
self.config = Config()
if self.groupsend == None:
self.groupsend = self.groupsend_type[self.config['broadcast_default']]
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 set_dbus_data(self, dbus_service):
"""Store the DBus bus details, if they are available"""
if dbus_service:
self.dbus_name = dbus_service.bus_name.get_name()
self.dbus_path = dbus_service.bus_path
def attempt_gnome_client(self):
"""Attempt to find a GNOME Session to register with"""
try:
from gi.repository import Gnome
self.gnome_program = Gnome.init(APP_NAME, APP_VERSION) # VERIFY FOR GTK3
self.gnome_client = Gnome.Ui.master_client() # VERIFY FOR GTK3
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, AttributeError):
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 get_windows(self):
"""Return a list of windows"""
return self.windows
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')
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Gtk.main_quit()
def register_launcher_window(self, window):
"""Register a new launcher window widget"""
if window not in self.launcher_windows:
dbg('Terminator::register_launcher_window: registering %s:%s' % (id(window),
type(window)))
self.launcher_windows.append(window)
def deregister_launcher_window(self, window):
"""de-register a launcher window widget"""
dbg('Terminator::deregister_launcher_window: de-registering %s:%s' %
(id(window), type(window)))
if window in self.launcher_windows:
self.launcher_windows.remove(window)
else:
err('%s is not in registered window list' % window)
if len(self.launcher_windows) == 0 and len(self.windows) == 0:
# We have no windows left, we should exit
dbg('no windows remain, quitting')
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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)
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 find_terminal_by_uuid(self, uuid):
"""Search our terminals for one matching the supplied UUID"""
dbg('searching self.terminals for: %s' % uuid)
for terminal in self.terminals:
dbg('checking: %s (%s)' % (terminal.uuid.urn, terminal))
if terminal.uuid.urn == uuid:
return terminal
return None
def new_window(self, cwd=None, profile=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)
if profile and self.config['always_split_with_profile']:
terminal.force_set_profile(None, profile)
window.add(terminal)
window.show(True)
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)
self.new_window()
return
# 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()
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)
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if layout[windef].has_key('title'):
window.title.force_title(layout[windef]['title'])
if layout[windef].has_key('maximised'):
if layout[windef]['maximised'] == 'True':
window.ismaximised = True
else:
window.ismaximised = False
window.set_maximised(window.ismaximised)
if layout[windef].has_key('fullscreen'):
if layout[windef]['fullscreen'] == 'True':
window.isfullscreen = True
else:
window.isfullscreen = False
window.set_fullscreen(window.isfullscreen)
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window.create_layout(layout[windef])
self.layoutname = layoutname
def layout_done(self):
"""Layout operations have finished, record that fact"""
self.doing_layout = False
maker = Factory()
window_last_active_term_mapping = {}
for window in self.windows:
if window.is_child_notebook():
source = window.get_toplevel().get_children()[0]
else:
source = window
window_last_active_term_mapping[window] = copy.copy(source.last_active_term)
for terminal in self.terminals:
if not terminal.pid:
terminal.spawn_child()
for window in self.windows:
if window.is_child_notebook():
# For windows with a notebook
notebook = window.get_toplevel().get_children()[0]
# Cycle through pages by number
for page in xrange(0, notebook.get_n_pages()):
# Try and get the entry in the previously saved mapping
mapping = window_last_active_term_mapping[window]
page_last_active_term = mapping.get(notebook.get_nth_page(page), None)
if page_last_active_term is None:
# Couldn't find entry, so we find the first child of type Terminal
children = notebook.get_nth_page(page).get_children()
for page_last_active_term in children:
if maker.isinstance(page_last_active_term, 'Terminal'):
page_last_active_term = page_last_active_term.uuid
break
else:
err('Should never reach here!')
page_last_active_term = None
if page_last_active_term is None:
# Bail on this tab as we're having no luck here, continue with the next
continue
# Set the notebook entry, then ensure Terminal is visible and focussed
urn = page_last_active_term.urn
notebook.last_active_term[notebook.get_nth_page(page)] = page_last_active_term
if urn:
term = self.find_terminal_by_uuid(urn)
if term:
term.ensure_visible_and_focussed()
else:
# For windows without a notebook ensure Terminal is visible and focussed
if window_last_active_term_mapping[window]:
term = self.find_terminal_by_uuid(window_last_active_term_mapping[window].urn)
term.ensure_visible_and_focussed()
for window in self.windows:
if window.uuid == self.last_active_window:
window.show()
def reconfigure(self):
"""Update configuration for the whole application"""
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if self.style_provider is not None:
Gtk.StyleContext.remove_provider_for_screen(
Gdk.Screen.get_default(),
self.style_provider)
self.style_provider = None
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if self.config['handle_size'] in xrange(0, 21):
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css = """
GtkPaned {
-GtkPaned-handle-size: %s
}
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""" % self.config['handle_size']
self.style_provider = Gtk.CssProvider()
self.style_provider.load_from_data(css)
Gtk.StyleContext.add_provider_for_screen(
Gdk.Screen.get_default(),
self.style_provider,
Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION)
# 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 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, eventkey2gdkevent(event))
def all_emit(self, terminal, type, event):
"""Emit to all terminals"""
for term in self.terminals:
if term != terminal:
term.vte.emit(type, eventkey2gdkevent(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'
terminals = []
for window in self.windows:
containers, win_terminals = enumerate_descendants(window)
terminals.extend(win_terminals)
for term in self.get_target_terms(widget):
idx = terminals.index(term)
term.feed(numstr % (idx + 1))
def get_sibling_terms(self, widget):
termset = []
for term in self.terminals:
if term.group == widget.group:
termset.append(term)
return(termset)
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']:
if widget.group != None:
return(self.get_sibling_terms(widget))
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.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 focus_left(self, widget):
self.last_focused_term=widget
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: