/usr/share/pyshared/jarabe/view/tabbinghandler.py is in python-jarabe-0.96 0.96.1-2.1git1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 | # Copyright (C) 2008, Benjamin Berg <benjamin@sipsolutions.net>
#
# 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 logging
import gobject
import gtk
from jarabe.model import shell
_RAISE_DELAY = 250
class TabbingHandler(object):
def __init__(self, frame, modifier):
self._frame = frame
self._tabbing = False
self._modifier = modifier
self._timeout = None
def _start_tabbing(self):
if not self._tabbing:
logging.debug('Grabing the input.')
screen = gtk.gdk.screen_get_default()
window = screen.get_root_window()
keyboard_grab_result = gtk.gdk.keyboard_grab(window)
pointer_grab_result = gtk.gdk.pointer_grab(window)
self._tabbing = (keyboard_grab_result == gtk.gdk.GRAB_SUCCESS and
pointer_grab_result == gtk.gdk.GRAB_SUCCESS)
# Now test that the modifier is still active to prevent race
# conditions. We also test if one of the grabs failed.
mask = window.get_pointer()[2]
if not self._tabbing or not (mask & self._modifier):
logging.debug('Releasing grabs again.')
# ungrab keyboard/pointer if the grab was successfull.
if keyboard_grab_result == gtk.gdk.GRAB_SUCCESS:
gtk.gdk.keyboard_ungrab()
if pointer_grab_result == gtk.gdk.GRAB_SUCCESS:
gtk.gdk.pointer_ungrab()
self._tabbing = False
else:
self._frame.show(self._frame.MODE_NON_INTERACTIVE)
def __timeout_cb(self, event_time):
self._activate_current(event_time)
self._timeout = None
return False
def _start_timeout(self, event_time):
self._cancel_timeout()
self._timeout = gobject.timeout_add(_RAISE_DELAY,
lambda: self.__timeout_cb(event_time))
def _cancel_timeout(self):
if self._timeout:
gobject.source_remove(self._timeout)
self._timeout = None
def _activate_current(self, event_time):
home_model = shell.get_model()
activity = home_model.get_tabbing_activity()
if activity and activity.get_window():
activity.get_window().activate(event_time)
def next_activity(self, event_time):
if not self._tabbing:
first_switch = True
self._start_tabbing()
else:
first_switch = False
if self._tabbing:
shell_model = shell.get_model()
zoom_level = shell_model.zoom_level
zoom_activity = (zoom_level == shell.ShellModel.ZOOM_ACTIVITY)
if not zoom_activity and first_switch:
activity = shell_model.get_active_activity()
else:
activity = shell_model.get_tabbing_activity()
activity = shell_model.get_next_activity(current=activity)
shell_model.set_tabbing_activity(activity)
self._start_timeout(event_time)
else:
self._activate_next_activity(event_time)
def previous_activity(self, event_time):
if not self._tabbing:
first_switch = True
self._start_tabbing()
else:
first_switch = False
if self._tabbing:
shell_model = shell.get_model()
zoom_level = shell_model.zoom_level
zoom_activity = (zoom_level == shell.ShellModel.ZOOM_ACTIVITY)
if not zoom_activity and first_switch:
activity = shell_model.get_active_activity()
else:
activity = shell_model.get_tabbing_activity()
activity = shell_model.get_previous_activity(current=activity)
shell_model.set_tabbing_activity(activity)
self._start_timeout(event_time)
else:
self._activate_next_activity(event_time)
def _activate_next_activity(self, event_time):
next_activity = shell.get_model().get_next_activity()
if next_activity:
next_activity.get_window().activate(event_time)
def stop(self, event_time):
gtk.gdk.keyboard_ungrab()
gtk.gdk.pointer_ungrab()
self._tabbing = False
self._frame.hide()
self._cancel_timeout()
self._activate_current(event_time)
home_model = shell.get_model()
home_model.set_tabbing_activity(None)
def is_tabbing(self):
return self._tabbing
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