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# Copyright (C) 2007, Eduardo Silva <edsiper@gmail.com>.
# Copyright (C) 2008, One Laptop Per Child
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import os
from gettext import gettext as _
# Initialize logging.
import logging
log = logging.getLogger('Terminal')
log.setLevel(logging.DEBUG)
logging.basicConfig()
import gtk
import dbus
import sugar.graphics.toolbutton
from sugar.activity import activity
from sugar import env
from sugar.graphics.toolbutton import ToolButton
from sugar.graphics.palette import Palette
import ConfigParser
import os.path
import vte
import pango
import simplejson
class TerminalActivity(activity.Activity):
def __init__(self, handle):
activity.Activity.__init__(self, handle)
self.data_file = None
self.set_title(_('Terminal Activity'))
self.connect('key-press-event', self._key_press_cb)
toolbox = activity.ActivityToolbox(self)
editbar = activity.EditToolbar()
toolbox.add_toolbar(_('Edit'), editbar)
editbar.show()
editbar.undo.props.visible = False
editbar.redo.props.visible = False
editbar.separator.props.visible = False
editbar.copy.connect('clicked', self._copy_cb)
editbar.copy.props.accelerator = '<Ctrl><Shift>C'
editbar.paste.connect('clicked', self._paste_cb)
editbar.paste.props.accelerator = '<Ctrl><Shift>V'
newtabbtn = sugar.graphics.toolbutton.ToolButton('list-add')
newtabbtn.set_tooltip(_("Open New Tab"))
newtabbtn.props.accelerator = '<Ctrl><Shift>T'
newtabbtn.connect('clicked', self._open_tab_cb)
deltabbtn = sugar.graphics.toolbutton.ToolButton('list-remove')
deltabbtn.set_tooltip(_("Close Tab"))
deltabbtn.props.accelerator = '<Ctrl><Shift>X'
deltabbtn.connect('clicked', self._close_tab_cb)
tabsep = gtk.SeparatorToolItem()
tabsep.set_expand(True)
tabsep.set_draw(False)
# Add a button that will be used to become root easily.
rootbtn = ToolButton('activity-become-root')
rootbtn.set_tooltip(_('Become root'))
rootbtn.connect('clicked', self._become_root_cb)
prevtabbtn = sugar.graphics.toolbutton.ToolButton('go-previous')
prevtabbtn.set_tooltip(_("Previous Tab"))
prevtabbtn.props.accelerator = '<Ctrl><Shift>Left'
prevtabbtn.connect('clicked', self._prev_tab_cb)
nexttabbtn = sugar.graphics.toolbutton.ToolButton('go-next')
nexttabbtn.set_tooltip(_("Next Tab"))
nexttabbtn.props.accelerator = '<Ctrl><Shift>Right'
nexttabbtn.connect('clicked', self._next_tab_cb)
tabbar = gtk.Toolbar()
tabbar.insert(newtabbtn, -1)
tabbar.insert(deltabbtn, -1)
tabbar.insert(tabsep, -1)
tabbar.insert(rootbtn, -1)
tabbar.insert(prevtabbtn, -1)
tabbar.insert(nexttabbtn, -1)
tabbar.show_all()
toolbox.add_toolbar(_('Tab'), tabbar)
activity_toolbar = toolbox.get_activity_toolbar()
activity_toolbar.share.props.visible = False
activity_toolbar.keep.props.visible = False
fullscreenbtn = sugar.graphics.toolbutton.ToolButton('view-fullscreen')
fullscreenbtn.set_tooltip(_("Fullscreen"))
fullscreenbtn.props.accelerator = '<Alt>Enter'
fullscreenbtn.connect('clicked', self._fullscreen_cb)
activity_toolbar.insert(fullscreenbtn, 2)
fullscreenbtn.show()
self.set_toolbox(toolbox)
toolbox.show()
self.notebook = gtk.Notebook()
self.notebook.set_property("tab-pos", gtk.POS_BOTTOM)
self.notebook.set_scrollable(True)
self.notebook.show()
self.set_canvas(self.notebook)
self._create_tab(None)
def _open_tab_cb(self, btn):
index = self._create_tab(None)
self.notebook.page = index
def _close_tab_cb(self, btn):
self._close_tab(self.notebook.props.page)
def _prev_tab_cb(self, btn):
if self.notebook.props.page == 0:
self.notebook.props.page = self.notebook.get_n_pages() - 1
else:
self.notebook.props.page = self.notebook.props.page - 1
vt = self.notebook.get_nth_page(self.notebook.get_current_page()).vt
vt.grab_focus()
def _next_tab_cb(self, btn):
if self.notebook.props.page == self.notebook.get_n_pages() - 1:
self.notebook.props.page = 0
else:
self.notebook.props.page = self.notebook.props.page + 1
vt = self.notebook.get_nth_page(self.notebook.get_current_page()).vt
vt.grab_focus()
def _restore_shell(self, vt, tab_idx, data, data_file):
tab_state = data['tabs'][tab_idx]
# Restore the scrollback buffer.
for l in tab_state['scrollback']:
vt.feed(l + '\r\n')
# Launch the shell using the wrapper script to restore the environment.
bundle_path = activity.get_bundle_path()
os.chdir(bundle_path)
pid = vt.fork_command(bundle_path + '/shell.py', \
'--state', data_file,
'--tab', tab_idx)
# TODO: Figure out how to grab the environment from the PID when closing.
log.debug(pid)
def _launch_shell(self, vt, tab_state):
# Launch the default shell in the HOME directory.
if tab_state:
# TODO: Need to save cwd on exit.
#os.chdir(tab_data['cwd'])
os.chdir(os.environ["HOME"])
# Restore the scrollback buffer.
for l in tab_state['scrollback']:
vt.feed(l + '\r\n')
else:
os.chdir(os.environ["HOME"])
vt.fork_command()
def _close_tab(self, index):
self.notebook.remove_page(index)
if self.notebook.get_n_pages() == 0:
self.close()
def _tab_child_exited_cb(self, vt):
for i in range(self.notebook.get_n_pages()):
if self.notebook.get_nth_page(i).vt == vt:
self._close_tab(i)
return
def _tab_title_changed_cb(self, vt):
for i in range(self.notebook.get_n_pages()):
if self.notebook.get_nth_page(i).vt == vt:
label = self.notebook.get_nth_page(i).label
label.set_text(vt.get_window_title())
return
def _create_tab(self, tab_state):
vt = vte.Terminal()
vt.set_scroll_on_keystroke(True)
vt.connect("child-exited", self._tab_child_exited_cb)
vt.connect("window-title-changed", self._tab_title_changed_cb)
vt.show()
label = gtk.Label()
scrollbar = gtk.VScrollbar(vt.get_adjustment())
scrollbar.show()
box = gtk.HBox()
box.pack_start(vt)
box.pack_start(scrollbar)
box.vt = vt
box.label = label
index = self.notebook.append_page(box, label)
self.notebook.show_all()
self.notebook.props.show_tabs = self.notebook.get_n_pages() > 1
self._launch_shell(vt, tab_state)
self.notebook.props.page = index
vt.grab_focus()
return index
def _copy_cb(self, button):
vt = self.notebook.get_nth_page(self.notebook.get_current_page()).vt
if vt.get_has_selection():
vt.copy_clipboard()
def _paste_cb(self, button):
vt = self.notebook.get_nth_page(self.notebook.get_current_page()).vt
vt.paste_clipboard()
def _become_root_cb(self, button):
vt = self.notebook.get_nth_page(self.notebook.get_current_page()).vt
vt.feed('\r\n')
vt.fork_command("/bin/su", ('/bin/su', '-'))
def _fullscreen_cb(self, btn):
self.fullscreen()
def _key_press_cb(self, window, event):
if gtk.gdk.keyval_name(event.keyval) == 'Escape':
return True
return False
def read_file(self, file_path):
if self.metadata['mime_type'] != 'text/plain':
return
fd = open(file_path, 'r')
text = fd.read()
data = simplejson.loads(text)
fd.close()
data_file = file_path
while self.notebook.get_n_pages():
self.notebook.remove_page(0)
for tab in data['tabs']:
index = self._create_tab(tab)
self.notebook.props.page = data['current-tab']
def write_file(self, file_path):
if not self.metadata['mime_type']:
self.metadata['mime_type'] = 'text/plain'
data = {}
data['current-tab'] = self.notebook.get_current_page()
data['tabs'] = []
for i in range(self.notebook.get_n_pages()):
page = self.notebook.get_nth_page(i)
def selected_cb(terminal, c, row, cb_data):
return 1
(scrollback_text, attrs) = page.vt.get_text(selected_cb, 1)
scrollback_lines = scrollback_text.split('\n')
tab = { 'env': {}, 'cwd': '', 'scrollback': scrollback_lines }
data['tabs'].append(tab)
fd = open(file_path, 'w')
text = simplejson.dumps(data)
fd.write(text)
fd.close()
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