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#
# Copyright (C) 2005 Red Hat, Inc.
#
# 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., 675 Mass Ave, Cambridge, MA 02139, USA.
#
import gobject
import gtk
import gtk.gdk
import xlib
import util
import debuglog
def dprint (fmt, *args):
debuglog.debug_log (False, debuglog.DEBUG_LOG_DOMAIN_SESSION_WIDGET, fmt % args)
def session_window_subwindow_created_cb (xid, user_data):
self = user_data
dprint ("subwindow got created with xid %x", xid)
self.xephyr_window = gtk.gdk.window_foreign_new_for_display (gtk.gdk.display_get_default (), xid)
dprint ("gdk foreign window created, %s", self.xephyr_window)
class SessionWidget (gtk.Widget):
# FIXME:
# Should be able override do_size_allocate() without this
# See bug #308099
__gsignals__ = { 'size-allocate' : 'override' }
def __init__ (self, session_width, session_height):
gtk.Widget.__init__ (self)
self.set_flags (self.flags() | gtk.NO_WINDOW)
self.set_property ("can-focus", True)
self.session_width = session_width
self.session_height = session_height
self.xephyr_window = None
def do_size_request (self, requisition):
focus_width = self.style_get_property ("focus-line-width")
focus_pad = self.style_get_property ("focus-padding")
requisition.width = self.session_width + 2 * focus_width + 2 * focus_pad
requisition.height = self.session_height + 2 * focus_width + 2 * focus_pad
def __calculate_position (self, allocation):
focus_width = self.style_get_property ("focus-line-width")
focus_pad = self.style_get_property ("focus-padding")
x = allocation.x + focus_width + focus_pad
y = allocation.y + focus_width + focus_pad
alloc_width = allocation.width - 2 * focus_width - 2 * focus_pad
alloc_height = allocation.height - 2 * focus_width - 2 * focus_pad
x += max (0, (alloc_width - self.session_width) / 2)
y += max (0, (alloc_height - self.session_height) / 2)
return (x, y)
def do_size_allocate (self, allocation):
self.allocation = allocation
if self.flags() & gtk.REALIZED:
(x, y) = self.__calculate_position (allocation)
self.session_window.move_resize (x, y, self.session_width, self.session_height)
self.input_window.move_resize (x, y, self.session_width, self.session_height)
def do_realize (self):
gtk.Widget.do_realize (self)
(x, y) = self.__calculate_position (self.allocation)
self.session_window = gtk.gdk.Window (parent = self.get_parent_window (),
window_type = gtk.gdk.WINDOW_CHILD,
x = x,
y = y,
width = self.session_width,
height = self.session_height,
wclass = gtk.gdk.INPUT_OUTPUT,
visual = self.get_visual (),
colormap = self.get_colormap (),
event_mask = gtk.gdk.BUTTON_RELEASE_MASK | gtk.gdk.SUBSTRUCTURE_MASK)
self.session_window.set_user_data (self)
dprint ("session window has xid %x", self.session_window.xid)
# We use Xephyr's "-parent" option to tell it where to create
# its window. However, Xephyr does not use our window
# directly for drawing. Instead, it creates a subwindow in
# our parent window, and uses *that*. So, the events that we
# proxy to Xephyr must be sent to the window that it creates.
#
# To get notified when Xephyr creates its window inside ours,
# we select for gtk.gdk.SUBSTRUCTURE_MASK above. However,
# there's no GDK_* event for CreateNotify events. In an ideal
# world, we could just install a window event filter to
# extract that event ourselves.
#
# However, PyGTK is buggy and doesn't implement
# gdk_window_add_filter() correctly (see
# http://bugzilla.gnome.org/show_bug.cgi?id=156948). So, we
# use our own wrapper for that function...
xlib.window_capture_create_notify (self.session_window, session_window_subwindow_created_cb, self)
event_mask = gtk.gdk.BUTTON_PRESS_MASK | \
gtk.gdk.BUTTON_RELEASE_MASK | \
gtk.gdk.POINTER_MOTION_MASK | \
gtk.gdk.ENTER_NOTIFY_MASK | \
gtk.gdk.LEAVE_NOTIFY_MASK | \
gtk.gdk.KEY_PRESS_MASK | \
gtk.gdk.KEY_RELEASE_MASK
self.input_window = gtk.gdk.Window (parent = self.get_parent_window (),
window_type = gtk.gdk.WINDOW_CHILD,
x = x,
y = y,
width = self.session_width,
height = self.session_height,
wclass = gtk.gdk.INPUT_ONLY,
visual = self.get_visual (),
colormap = self.get_colormap (),
event_mask = event_mask)
self.input_window.set_user_data (self)
dprint ("Created input_only window for child session")
def do_unrealize (self):
# FIXME:
# Causes a warning with pygtk 2.6.2
# See bug #308384
self.input_window.set_user_data (None)
self.input_window.destroy ()
dprint ("Destroyed input_only window for child session")
self.session_window.set_user_data (None)
self.session_window.destroy ()
gtk.Widget.do_unrealize (self)
def do_map (self):
gtk.Widget.do_map (self)
self.session_window.show ()
self.input_window.show ()
dprint ("Showed input_only window for child session")
def do_unmap (self):
self.input_window.hide ()
self.session_window.hide ()
gtk.Widget.do_unmap (self)
dprint ("Hid input_only window for child session")
def do_expose_event (self, event):
if self.flags() & gtk.HAS_FOCUS:
focus_width = self.style_get_property ("focus-line-width")
focus_pad = self.style_get_property ("focus-padding")
(x, y) = self.__calculate_position (self.allocation)
self.style.paint_focus (self.window,
self.state,
event.area,
self,
"sabayon-session",
x - focus_width - focus_pad,
y - focus_width - focus_pad,
self.session_width + 2 * focus_width + 2 * focus_pad,
self.session_height + 2 * focus_width + 2 * focus_pad)
return False
def __update_input_only_window (self):
if not self.flags() & gtk.REALIZED:
return
if self.flags() & gtk.HAS_FOCUS:
self.input_window.hide ()
dprint ("Focus in: hiding input_only window for child session")
else:
self.input_window.show ()
dprint ("Focus out: showing input_only window for child session")
def do_focus_in_event (self, event):
self.__update_input_only_window ()
return gtk.Widget.do_focus_in_event (self, event)
def do_focus_out_event (self, event):
self.__update_input_only_window ()
return gtk.Widget.do_focus_in_event (self, event)
def do_button_press_event (self, event):
if not self.flags() & gtk.HAS_FOCUS:
self.grab_focus ()
if not event.send_event:
if self.xephyr_window:
dprint ("Resending button press; button = %d, state = 0x%x", event.button, event.state)
xlib.send_button_event (self.xephyr_window, True, event.time, event.button, event.state)
return True
def do_button_release_event (self, event):
if not event.send_event:
if self.xephyr_window:
dprint ("Resending button release; button = %d, state = 0x%x", event.button, event.state)
xlib.send_button_event (self.xephyr_window, False, event.time, event.button, event.state)
return True
def do_motion_notify_event (self, event):
if not event.send_event:
if self.xephyr_window:
dprint ("Resending motion notify; x = %d, y = %d", event.x, event.y)
xlib.send_motion_event (self.xephyr_window, event.time, event.x, event.y);
return True
def do_enter_notify_event (self, event):
if not event.send_event:
if self.xephyr_window:
dprint ("Resending enter notify; x = %d, y = %d, detail = %d", event.x, event.y, event.detail)
xlib.send_crossing_event (self.xephyr_window, False, event.time, event.x, event.y, event.detail);
return True
def do_leave_notify_event (self, event):
if not event.send_event:
if self.xephyr_window:
dprint ("Resending leave notify; x = %d, y = %d, detail = %d", event.x, event.y, event.detail)
xlib.send_crossing_event (self.xephyr_window, False, event.time, event.x, event.y, event.detail);
return True
def do_key_press_event (self, event):
if not event.send_event:
if self.xephyr_window:
dprint ("Resending key press; keycode = 0x%x, state = 0x%x", event.hardware_keycode, event.state)
xlib.send_key_event (self.xephyr_window, True, event.time, event.hardware_keycode, event.state)
return True
def do_key_release_event (self, event):
if not event.send_event:
if self.xephyr_window:
dprint ("Resending key release; keycode = 0x%x, state = 0x%x", event.hardware_keycode, event.state)
xlib.send_key_event (self.xephyr_window, False, event.time, event.hardware_keycode, event.state)
return True
gobject.type_register (SessionWidget)
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