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#!/usr/bin/env python3
# vim: sts=4 sw=4 et
"""
XEmbed helper functions to allow correct embedding inside Axis
"""
import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk
from gi.repository import Gdk
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.new(int(parent))
plug.show_all()
d = display.Display()
w = drawable.Window(d.display, plug.get_window().get_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 add_plug(window):
"""Replace top level with a plug so it can be reparented.
This doesn't actually reparent the widget
"""
plug = Gtk.Plug(0)
plug.show()
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-press and key-release events. If key is not
in ignore list - forward it to window id found in environment.
"""
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)
#TODO: GTK3
# 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 == Gdk.EventType.KEY_PRESS:
klass = event.KeyPress
elif type == Gdk.EventType.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)
#TODO:
#window.add_events(Gdk.EventType.KEY_PRESS_MASK)
#window.add_events(Gdk.EventType.KEY_RELEASE_MASK)
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