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Use xpyb instead of xprop to get window properties

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This commit is contained in:
Kovid Goyal 2014-10-31 15:59:57 +05:30
parent de065c56af
commit 67cceb61f4
1 changed files with 42 additions and 12 deletions
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54
src/calibre/gui2/dbus_export/gtk.py
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@ -9,7 +9,7 @@ __copyright__ = '2014, Kovid Goyal <kovid at kovidgoyal.net>'
# Demo program to explore the GTK DBus interface, which is only partially documented
# at https://wiki.gnome.org/Projects/GLib/GApplication/DBusAPI
import sys, dbus, subprocess
import sys, dbus, struct
from threading import Thread
from pprint import pformat
@ -200,18 +200,48 @@ class MyApplication(Gtk.Application):
Thread(target=self.print_dbus_data).start()
def get_xprop_data(self):
property_names = {GdkX11.x11_get_xatom_name(i) for i in xrange(691)}
property_names = {name for name in property_names if
win_id = self.window.get_window().get_xid()
try:
import xcb, xcb.xproto
except ImportError:
raise SystemExit('You must install the python-xpyb XCB bindings')
conn = xcb.Connection()
atoms = conn.core.ListProperties(win_id).reply().atoms
atom_names = {atom:conn.core.GetAtomNameUnchecked(atom) for atom in atoms}
atom_names = {k:str(a.reply().name.buf()) for k, a in atom_names.iteritems()}
property_names = {name:atom for atom, name in atom_names.iteritems() if
name.startswith('_GTK') or name.startswith('_UNITY') or name.startswith('_GNOME')}
props = []
for name in sorted(property_names):
props.append(subprocess.check_output(['xprop', '-id', str(self.window.get_window().get_xid()), name]))
raw = props[-1]
if raw.startswith('_UNITY_OBJECT_PATH'):
self.object_path = eval(raw.split('=')[-1].strip())
elif raw.startswith('_GTK_UNIQUE_BUS_NAME'):
self.bus_name = eval(raw.split('=')[-1].strip())
self.xprop_data = '\n'.join(props)
replies = {name:conn.core.GetProperty(False, win_id, atom, xcb.xproto.GetPropertyType.Any, 0, 2 ** 32 - 1) for name, atom in property_names.iteritems()}
def get_property_value(property_reply):
if property_reply.format == 8:
if 0 in property_reply.value[:-1]:
ret = []
s = []
for o in property_reply.value:
if o == 0:
ret.append(''.join(s))
s = []
else:
s.append(chr(o))
else:
ret = str(property_reply.value.buf())
if len(property_reply.value) > 0 and 0 == property_reply.value[-1]:
ret = ret[:-1]
return ret
elif property_reply.format in (16, 32):
return list(struct.unpack(b'I' * property_reply.value_len,
property_reply.value.buf()))
return None
props = {name:get_property_value(r.reply()) for name, r in replies.iteritems()}
ans = ['\nX Window properties:']
for name in sorted(props):
ans.append('%s: %r' % (name, props[name]))
self.xprop_data = '\n'.join(ans)
self.object_path = props['_UNITY_OBJECT_PATH']
self.bus_name = props['_GTK_UNIQUE_BUS_NAME']
def print(self, *args):
self.data.append(' '.join(map(str, args)))