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#!/usr/bin/env python
# vim: sts=4 sw=4 et
"""
XEmbed helper functions to allow correct embeding inside Axis
"""
import gtk
def reparent(window, parent):
""" Forced reparent. When reparenting Gtk applications into Tk
some extra protocol calls are needed.
"""
from Xlib import display
from Xlib.xobject import drawable
if not parent:
return window
plug = gtk.Plug(long(parent))
plug.show()
d = display.Display()
w = drawable.Window(d.display, plug.window.xid, 0)
# Honor XEmbed spec
atom = d.get_atom('_XEMBED_INFO')
w.change_property(atom, atom, 32, [0, 1])
w.reparent(parent, 0, 0)
w.map()
d.sync()
for c in window.get_children():
window.remove(c)
plug.add(c)
# Hide window if it's displayed
window.unmap()
return plug
def keyboard_forward(window, forward):
""" XXX: Keyboard events forwardind
This is kind of hack needed to properly function inside Tk windows.
Gtk app will receive _all_ events, even not needed. So we have to forward
back things that left over after our widgets. Connect handlers _after_
all others and listen for key-presss and key-release events. If key is not
in ignore list - forward it to window id found in evironment.
"""
if not forward:
return
try:
forward = int(forward, 0)
except:
return
from Xlib.protocol import event
from Xlib import display, X
from Xlib.xobject import drawable
d = display.Display()
fw = drawable.Window(d.display, forward, 0)
ks = gtk.keysyms
ignore = [ ks.Tab, ks.Page_Up, ks.Page_Down
, ks.KP_Page_Up, ks.KP_Page_Down
, ks.Left, ks.Right, ks.Up, ks.Down
, ks.KP_Left, ks.KP_Right, ks.KP_Up, ks.KP_Down
, ks.bracketleft, ks.bracketright
]
def gtk2xlib(e, fw, g, type=None):
if type is None: type = e.type
if type == gtk.gdk.KEY_PRESS:
klass = event.KeyPress
elif type == gtk.gdk.KEY_RELEASE:
klass = event.KeyRelease
else:
return
kw = dict(window=fw, detail=e.hardware_keycode,
state=e.state & 0xff,
child=X.NONE, root=g._data['root'],
root_x=g._data['x'], root_y=g._data['y'],
event_x=0, event_y=0, same_screen=1)
return klass(time=e.time, **kw)
def forward(w, e, fw):
if e.keyval in ignore:
return
g = fw.get_geometry()
fe = gtk2xlib(e, fw, g)
if not fe: return
fw.send_event(fe)
window.connect_after("key-press-event", forward, fw)
window.connect("key-release-event", forward, fw)
window.add_events(gtk.gdk.KEY_PRESS_MASK)
window.add_events(gtk.gdk.KEY_RELEASE_MASK)
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