terminator/terminatorlib/window.py

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#!/usr/bin/python
# Terminator by Chris Jones <cmsj@tenshu.net>
# GPL v2 only
"""window.py - class for the main Terminator window"""
import copy
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import pygtk
pygtk.require('2.0')
import gobject
import gtk
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import glib
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from util import dbg, err
import util
from translation import _
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from version import APP_NAME
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from container import Container
from factory import Factory
from terminator import Terminator
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try:
import keybinder
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except ImportError:
err('Warning: python-keybinder is not installed. This means the \
hide_window shortcut will be unavailable')
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# pylint: disable-msg=R0904
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class Window(Container, gtk.Window):
"""Class implementing a top-level Terminator window"""
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terminator = None
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title = None
isfullscreen = None
ismaximised = None
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hidebound = None
hidefunc = None
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zoom_data = None
term_zoomed = gobject.property(type=bool, default=False)
def __init__(self):
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"""Class initialiser"""
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self.terminator = Terminator()
self.terminator.register_window(self)
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Container.__init__(self)
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gtk.Window.__init__(self)
gobject.type_register(Window)
self.register_signals(Window)
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self.set_property('allow-shrink', True)
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self.apply_icon()
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self.register_callbacks()
self.apply_config()
self.title = WindowTitle(self)
self.title.update()
options = self.config.options_get()
if options:
if options.forcedtitle is not None:
self.title.force_title(options.forcedtitle)
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if options.role is not None:
self.set_role(options.role)
if options.geometry is not None:
if not self.parse_geometry(options.geometry):
err('Window::__init__: Unable to parse geometry: %s' %
options.geometry)
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def register_callbacks(self):
"""Connect the GTK+ signals we care about"""
self.connect('key-press-event', self.on_key_press)
self.connect('delete_event', self.on_delete_event)
self.connect('destroy', self.on_destroy_event)
self.connect('window-state-event', self.on_window_state_changed)
# Attempt to grab a global hotkey for hiding the window.
# If we fail, we'll never hide the window, iconifying instead.
try:
self.hidebound = keybinder.bind(
self.config['keybindings']['hide_window'],
self.on_hide_window)
except (KeyError, NameError):
pass
if not self.hidebound:
err('Unable to bind hide_window key, another instance/window has it.')
self.hidefunc = self.iconify
else:
self.hidefunc = self.hide
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def apply_config(self):
"""Apply various configuration options"""
options = self.config.options_get()
maximise = self.config['window_state'] == 'maximise'
fullscreen = self.config['window_state'] == 'fullscreen'
hidden = self.config['window_state'] == 'hidden'
borderless = self.config['borderless']
if options:
if options.maximise:
maximise = True
if options.fullscreen:
fullscreen = True
if options.hidden:
hidden = True
if options.borderless:
borderless = True
self.set_fullscreen(fullscreen)
self.set_maximised(maximise)
self.set_borderless(borderless)
self.set_real_transparency()
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if self.hidebound:
self.set_hidden(hidden)
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else:
self.set_iconified(hidden)
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def apply_icon(self):
"""Set the window icon"""
icon_theme = gtk.IconTheme()
try:
icon = icon_theme.load_icon(APP_NAME, 48, 0)
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except (NameError, glib.GError):
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dbg('Unable to load 48px Terminator icon')
icon = self.render_icon(gtk.STOCK_DIALOG_INFO, gtk.ICON_SIZE_BUTTON)
self.set_icon(icon)
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def on_key_press(self, window, event):
"""Handle a keyboard event"""
maker = Factory()
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self.set_urgency_hint(False)
mapping = self.terminator.keybindings.lookup(event)
if mapping:
dbg('Window::on_key_press: looked up %r' % mapping)
if mapping == 'full_screen':
self.set_fullscreen(not self.isfullscreen)
elif mapping == 'close_window':
if not self.on_delete_event(window,
gtk.gdk.Event(gtk.gdk.DELETE)):
self.on_destroy_event(window,
gtk.gdk.Event(gtk.gdk.DESTROY))
elif mapping == 'new_tab':
self.tab_new(self.get_focussed_terminal())
else:
return(False)
return(True)
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def is_child_notebook(self):
"""Returns True if this Window's child is a Notebook"""
maker = Factory()
return(maker.isinstance(self.get_child(), 'Notebook'))
def tab_new(self, widget=None, debugtab=False, _param1=None, _param2=None):
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"""Make a new tab"""
cwd = None
if self.get_property('term_zoomed') == True:
err("You can't create a tab while a terminal is maximised/zoomed")
return
if widget:
cwd = widget.get_cwd()
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maker = Factory()
if not self.is_child_notebook():
notebook = maker.make('Notebook', window=self)
self.get_child().newtab(debugtab, cwd=cwd)
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def on_delete_event(self, window, event, data=None):
"""Handle a window close request"""
maker = Factory()
if maker.isinstance(self.get_child(), 'Terminal'):
dbg('Window::on_delete_event: Only one child, closing is fine')
return(False)
elif maker.isinstance(self.get_child(), 'Container'):
return(self.confirm_close(window, _('window')))
else:
dbg('unknown child: %s' % self.get_child())
def confirm_close(self, window, type):
"""Display a confirmation dialog when the user is closing multiple
terminals in one window"""
dialog = self.construct_confirm_close(window, type)
result = dialog.run()
dialog.destroy()
return(not (result == gtk.RESPONSE_ACCEPT))
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def on_destroy_event(self, widget, data=None):
"""Handle window descruction"""
dbg('destroying self')
self.cnxids.remove_all()
self.terminator.deregister_window(self)
self.destroy()
del(self)
def on_hide_window(self, data=None):
"""Handle a request to hide/show the window"""
# FIXME: Implement or drop, or explain why its empty
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pass
# pylint: disable-msg=W0613
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def on_window_state_changed(self, window, event):
"""Handle the state of the window changing"""
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self.isfullscreen = bool(event.new_window_state &
gtk.gdk.WINDOW_STATE_FULLSCREEN)
self.ismaximised = bool(event.new_window_state &
gtk.gdk.WINDOW_STATE_MAXIMIZED)
dbg('Window::on_window_state_changed: fullscreen=%s, maximised=%s' %
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(self.isfullscreen, self.ismaximised))
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return(False)
def set_maximised(self, value):
"""Set the maximised state of the window from the supplied value"""
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if value == True:
self.maximize()
else:
self.unmaximize()
def set_fullscreen(self, value):
"""Set the fullscreen state of the window from the supplied value"""
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if value == True:
self.fullscreen()
else:
self.unfullscreen()
def set_borderless(self, value):
"""Set the state of the window border from the supplied value"""
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self.set_decorated (not value)
def set_hidden(self, value):
"""Set the visibility of the window from the supplied value"""
# FIXME: Implement or drop this
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pass
def set_iconified(self, value):
"""Set the minimised state of the window from the value"""
# FIXME: Implement or drop this
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pass
def set_real_transparency(self, value=True):
"""Enable RGBA if supported on the current screen"""
if self.is_composited() == False:
value = False
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screen = self.get_screen()
if value:
dbg('setting rgba colormap')
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colormap = screen.get_rgba_colormap()
else:
dbg('setting rgb colormap')
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colormap = screen.get_rgb_colormap()
if colormap:
self.set_colormap(colormap)
def add(self, widget):
"""Add a widget to the window by way of gtk.Window.add()"""
maker = Factory()
gtk.Window.add(self, widget)
if maker.isinstance(widget, 'Terminal'):
signals = {'close-term': self.closeterm,
'title-change': self.title.set_title,
'split-horiz': self.split_horiz,
'split-vert': self.split_vert,
'unzoom': self.unzoom,
'tab-change': self.tab_change,
'group-all': self.group_all,
'ungroup-all': self.ungroup_all,
'group-tab': self.group_tab,
'ungroup-tab': self.ungroup_tab,
'move-tab': self.move_tab,
'tab-new': [self.tab_new, widget],
'navigate': self.navigate_terminal}
for signal in signals:
args = []
handler = signals[signal]
if isinstance(handler, list):
args = handler[1:]
handler = handler[0]
self.connect_child(widget, signal, handler, *args)
widget.grab_focus()
def remove(self, widget):
"""Remove our child widget by way of gtk.Window.remove()"""
gtk.Window.remove(self, widget)
self.disconnect_child(widget)
return(True)
def get_children(self):
"""Return a single list of our child"""
children = []
children.append(self.get_child())
return(children)
def hoover(self):
"""Ensure we still have a reason to exist"""
if not self.get_child():
self.emit('destroy')
def closeterm(self, widget):
"""Handle a terminal closing"""
Container.closeterm(self, widget)
self.hoover()
def split_axis(self, widget, vertical=True, cwd=None, sibling=None, widgetfirst=True):
"""Split the window"""
if self.get_property('term_zoomed') == True:
err("You can't split while a terminal is maximised/zoomed")
return
order = None
maker = Factory()
self.remove(widget)
if vertical:
container = maker.make('VPaned')
else:
container = maker.make('HPaned')
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if not sibling:
sibling = maker.make('Terminal')
sibling.set_cwd(cwd)
sibling.spawn_child()
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self.add(container)
container.show_all()
order = [widget, sibling]
if widgetfirst is False:
order.reverse()
for term in order:
container.add(term)
container.show_all()
def zoom(self, widget, font_scale=True):
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"""Zoom a terminal widget"""
children = self.get_children()
if widget in children:
# This widget is a direct child of ours and we're a Window
# so zooming is a no-op
return
self.zoom_data = widget.get_zoom_data()
self.zoom_data['widget'] = widget
self.zoom_data['old_child'] = children[0]
self.zoom_data['font_scale'] = font_scale
self.remove(self.zoom_data['old_child'])
self.zoom_data['old_parent'].remove(widget)
self.add(widget)
self.set_property('term_zoomed', True)
if font_scale:
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widget.cnxids.new(widget, 'size-allocate',
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widget.zoom_scale, self.zoom_data)
widget.grab_focus()
def unzoom(self, widget):
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"""Restore normal terminal layout"""
if not self.get_property('term_zoomed'):
# We're not zoomed anyway
dbg('Window::unzoom: not zoomed, no-op')
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return
widget = self.zoom_data['widget']
if self.zoom_data['font_scale']:
widget.vte.set_font(self.zoom_data['old_font'])
self.remove(widget)
self.add(self.zoom_data['old_child'])
self.zoom_data['old_parent'].add(widget)
widget.grab_focus()
self.zoom_data = None
self.set_property('term_zoomed', False)
def get_visible_terminals(self):
"""Walk down the widget tree to find all of the visible terminals.
Mostly using Container::get_visible_terminals()"""
maker = Factory()
child = self.get_child()
terminals = {}
# If our child is a Notebook, reset to work from its visible child
if maker.isinstance(child, 'Notebook'):
pagenum = child.get_current_page()
child = child.get_nth_page(pagenum)
if maker.isinstance(child, 'Container'):
terminals.update(child.get_visible_terminals())
elif maker.isinstance(child, 'Terminal'):
terminals[child] = child.get_allocation()
else:
err('Unknown child type %s' % type(child))
return(terminals)
def get_focussed_terminal(self):
"""Find which terminal we want to have focus"""
terminals = self.get_visible_terminals()
for terminal in terminals:
if terminal.vte.is_focus():
return(terminal)
return(None)
def set_rough_geometry_hints(self):
"""Walk all the terminals along the top and left edges to fake up how
many columns/rows we sort of have"""
maker = Factory()
if maker.isinstance(self.get_child(), 'Notebook'):
dbg("We don't currently support geometry hinting with tabs")
return
terminals = self.get_visible_terminals()
column_sum = 0
row_sum = 0
for terminal in terminals:
rect = terminal.get_allocation()
if rect.x == 0:
cols, rows = terminal.get_size()
row_sum = row_sum + rows
if rect.y == 0:
cols, rows = terminal.get_size()
column_sum = column_sum + cols
if column_sum == 0 or row_sum == 0:
dbg('column_sum=%s,row_sum=%s. No terminals found in >=1 axis' %
(column_sum, row_sum))
return
# FIXME: I don't think we should just use whatever font size info is on
# the last terminal we inspected. Looking up the default profile font
# size and calculating its character sizes would be rather expensive
# though.
font_width, font_height = terminal.get_font_size()
total_font_width = font_width * column_sum
total_font_height = font_height * row_sum
win_width, win_height = self.get_size()
extra_width = win_width - total_font_width
extra_height = win_height - total_font_height
dbg('setting geometry hints: (ewidth:%s)(eheight:%s),\
(fwidth:%s)(fheight:%s)' % (extra_width, extra_height,
font_width, font_height))
self.set_geometry_hints(self, -1, -1, -1, -1, extra_width,
extra_height, font_width, font_height, -1.0, -1.0)
def tab_change(self, widget, num=None):
"""Change to a specific tab"""
if num is None:
err('must specify a tab to change to')
maker = Factory()
child = self.get_child()
if not maker.isinstance(child, 'Notebook'):
dbg('child is not a notebook, nothing to change to')
return
if num == -1:
# Go to the next tab
cur = child.get_current_page()
pages = child.get_n_pages()
if cur == pages - 1:
num = 0
else:
num = cur + 1
elif num == -2:
# Go to the previous tab
cur = child.get_current_page()
if cur > 0:
num = cur - 1
else:
num = child.get_n_pages() - 1
child.set_current_page(num)
# Work around strange bug in gtk-2.12.11 and pygtk-2.12.1
# Without it, the selection changes, but the displayed page doesn't
# change
child.set_current_page(child.get_current_page())
# FIXME: All of these (un)group_(all|tab) methods need refactoring work
def group_all(self, widget):
"""Group all terminals"""
# FIXME: Why isn't this being done by Terminator() ?
group = _('All')
self.terminator.create_group(group)
for terminal in self.terminator.terminals:
terminal.set_group(None, group)
def ungroup_all(self, widget):
"""Ungroup all terminals"""
for terminal in self.terminator.terminals:
terminal.set_group(None, None)
def group_tab(self, widget):
"""Group all terminals in the current tab"""
maker = Factory()
notebook = self.get_child()
if not maker.isinstance(notebook, 'Notebook'):
dbg('not in a notebook, refusing to group tab')
return
pagenum = notebook.get_current_page()
while True:
group = _('Tab %d') % pagenum
if group not in self.terminator.groups:
break
pagenum += 1
for terminal in self.get_visible_terminals():
terminal.set_group(None, group)
def ungroup_tab(self, widget):
"""Ungroup all terminals in the current tab"""
maker = Factory()
notebook = self.get_child()
if not maker.isinstance(notebook, 'Notebook'):
dbg('note in a notebook, refusing to ungroup tab')
return
for terminal in self.get_visible_terminals():
terminal.set_group(None, None)
def move_tab(self, widget, direction):
"""Handle a keyboard shortcut for moving tab positions"""
maker = Factory()
notebook = self.get_child()
if not maker.isinstance(notebook, 'Notebook'):
dbg('not in a notebook, refusing to move tab %s' % direction)
return
dbg('moving tab %s' % direction)
numpages = notebook.get_n_pages()
page = notebook.get_current_page()
child = notebook.get_nth_page(page)
if direction == 'left':
if page == 0:
page = numpages
else:
page = page - 1
elif direction == 'right':
if page == numpages - 1:
page = 0
else:
page = page + 1
else:
err('unknown direction: %s' % direction)
return
notebook.reorder_child(child, page)
def navigate_terminal(self, terminal, direction):
"""Navigate around terminals"""
_containers, terminals = util.enumerate_descendants(self)
visibles = self.get_visible_terminals()
current = terminals.index(terminal)
length = len(terminals)
next = None
if length <= 1 or len(visibles) <= 1:
return
if direction in ['next', 'prev']:
tmpterms = copy.copy(terminals)
tmpterms = tmpterms[current+1:]
tmpterms.extend(terminals[0:current])
if direction == 'next':
tmpterms.reverse()
next = 0
while len(tmpterms) > 0:
tmpitem = tmpterms.pop()
if tmpitem in visibles:
next = terminals.index(tmpitem)
break
elif direction in ['left', 'right', 'up', 'down']:
layout = self.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 = terminals.index(winners[0])
if len(winners) > 1:
# Break an n-way tie using 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 = terminals.index(term)
break;
else:
err('Unknown navigation direction: %s' % direction)
if next is not None:
terminals[next].grab_focus()
def create_layout(self, layout):
"""Apply any config items from our layout"""
if not layout.has_key('children'):
err('layout describes no children: %s' % layout)
return
children = layout['children']
if len(children) != 1:
# We're a Window, we can only have one child
err('incorrect number of children for Window: %s' % layout)
return
child = children[children.keys()[0]]
terminal = self.get_children()[0]
if child['type'] == 'VPaned':
self.split_axis(terminal, True)
elif child['type'] == 'HPaned':
self.split_axis(terminal, False)
elif child['type'] == 'Notebook':
self.tab_new()
elif child['type'] == 'Terminal':
pass
else:
err('unknown child type: %s' % child['type'])
return
self.get_children()[0].create_layout(child)
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class WindowTitle(object):
"""Class to handle the setting of the window title"""
window = None
text = None
forced = None
def __init__(self, window):
"""Class initialiser"""
self.window = window
self.forced = False
def set_title(self, widget, text):
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"""Set the title"""
if not self.forced:
self.text = text
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self.update()
def force_title(self, newtext):
"""Force a specific title"""
if newtext:
self.set_title(None, newtext)
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self.forced = True
else:
self.forced = False
def update(self):
"""Update the title automatically"""
title = None
# FIXME: What the hell is this for?!
if self.forced:
title = self.text
else:
title = "%s" % self.text
self.window.set_title(title)
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# vim: set expandtab ts=4 sw=4: