def get_handler_id_for_signal(widget, signal):
signal_id, detail = GObject.signal_parse_name(signal, widget, True)
handler_id = GObject.signal_handler_find(widget,
GObject.SignalMatchType.ID,
signal_id, detail, None, None,
None)
return handler_id
def test_signal_handler_block_matching(self):
def dummy(*args):
"Hack to work around: "
def foo(obj):
obj.status += 1
obj = self.Object()
handler_id = GObject.signal_connect_closure(obj,
'my-signal',
foo,
after=False)
handler_id
self.assertEqual(obj.status, 0)
obj.emit('my-signal')
self.assertEqual(obj.status, 1)
# Blocking by match criteria disables the foo callback
signal_id, detail = GObject.signal_parse_name('my-signal', obj, True)
count = GObject.signal_handlers_block_matched(
obj,
GObject.SignalMatchType.ID | GObject.SignalMatchType.CLOSURE,
signal_id=signal_id,
detail=detail,
closure=foo,
func=dummy,
data=dummy)
self.assertEqual(count, 1)
obj.emit('my-signal')
self.assertEqual(obj.status, 1)
# Unblocking by the same match criteria allows callback to work again
count = GObject.signal_handlers_unblock_matched(
obj,
GObject.SignalMatchType.ID | GObject.SignalMatchType.CLOSURE,
signal_id=signal_id,
detail=detail,
closure=foo,
func=dummy,
data=dummy)
self.assertEqual(count, 1)
obj.emit('my-signal')
self.assertEqual(obj.status, 2)
# Disconnecting by match criteria completely removes the handler
count = GObject.signal_handlers_disconnect_matched(
obj,
GObject.SignalMatchType.ID | GObject.SignalMatchType.CLOSURE,
signal_id=signal_id,
detail=detail,
closure=foo,
func=dummy,
data=dummy)
self.assertEqual(count, 1)
obj.emit('my-signal')
self.assertEqual(obj.status, 2)
def test_signal_handler_find(self):
def foo(obj):
obj.status += 1
obj = self.Object()
handler_id = GObject.signal_connect_closure(obj, 'my-signal', foo, after=False)
signal_id, detail = GObject.signal_parse_name('my-signal', obj, True)
found_id = GObject.signal_handler_find(obj,
GObject.SignalMatchType.ID,
signal_id=signal_id, detail=detail,
closure=None, func=0, data=0)
self.assertEqual(handler_id, found_id)
def onInsertText(self, oWidget, strText, nLength, nPosition):
strText = ''.join([s for s in strText if s not in '/\\'])
nId, nDetail = GObject.signal_parse_name('insert-text', oWidget, True)
if strText:
nHandler = GObject.signal_handler_find(oWidget,
GObject.SignalMatchType.ID,
nId, nDetail, None, 0, 0)
nPosition = oWidget.get_position()
GObject.signal_handler_block(oWidget, nHandler)
oWidget.insert_text(strText, nPosition)
GObject.signal_handler_unblock(oWidget, nHandler)
GObject.idle_add(oWidget.set_position, nPosition + len(strText))
GObject.signal_stop_emission(oWidget, nId, nDetail)
def test_signal_handler_find(self):
def foo(obj):
obj.status += 1
obj = self.Object()
handler_id = GObject.signal_connect_closure(obj,
'my-signal',
foo,
after=False)
signal_id, detail = GObject.signal_parse_name('my-signal', obj, True)
found_id = GObject.signal_handler_find(obj,
GObject.SignalMatchType.ID,
signal_id=signal_id,
detail=detail,
closure=None,
func=0,
data=0)
self.assertEqual(handler_id, found_id)
def test_signal_handler_block_matching(self):
def dummy(*args):
"Hack to work around: "
def foo(obj):
obj.status += 1
obj = self.Object()
handler_id = GObject.signal_connect_closure(obj, 'my-signal', foo, after=False)
handler_id
self.assertEqual(obj.status, 0)
obj.emit('my-signal')
self.assertEqual(obj.status, 1)
# Blocking by match criteria disables the foo callback
signal_id, detail = GObject.signal_parse_name('my-signal', obj, True)
count = GObject.signal_handlers_block_matched(obj,
GObject.SignalMatchType.ID | GObject.SignalMatchType.CLOSURE,
signal_id=signal_id, detail=detail,
closure=foo, func=dummy, data=dummy)
self.assertEqual(count, 1)
obj.emit('my-signal')
self.assertEqual(obj.status, 1)
# Unblocking by the same match criteria allows callback to work again
count = GObject.signal_handlers_unblock_matched(obj,
GObject.SignalMatchType.ID | GObject.SignalMatchType.CLOSURE,
signal_id=signal_id, detail=detail,
closure=foo, func=dummy, data=dummy)
self.assertEqual(count, 1)
obj.emit('my-signal')
self.assertEqual(obj.status, 2)
# Disconnecting by match criteria completely removes the handler
count = GObject.signal_handlers_disconnect_matched(obj,
GObject.SignalMatchType.ID | GObject.SignalMatchType.CLOSURE,
signal_id=signal_id, detail=detail,
closure=foo, func=dummy, data=dummy)
self.assertEqual(count, 1)
obj.emit('my-signal')
self.assertEqual(obj.status, 2)
def test_signal_parse_name():
obj = GObject.GObject()
assert GObject.signal_parse_name("notify", obj, True) == (1, 0)
with pytest.raises(ValueError):
GObject.signal_parse_name("foobar", obj, True)
def test_signal_parse_name():
obj = GObject.GObject()
assert GObject.signal_parse_name("notify", obj, True) == (1, 0)
with pytest.raises(ValueError):
GObject.signal_parse_name("foobar", obj, True)
def _callback_handler_pending(self, e):
signal_id, detail = GObject.signal_parse_name('signal', e, True)
self.handler_pending = GObject.signal_has_handler_pending(
e, signal_id, detail, may_be_blocked=False)
def _callback_handler_pending(self, e):
signal_id, detail = GObject.signal_parse_name('signal', e, True)
self.handler_pending = GObject.signal_has_handler_pending(e, signal_id, detail,
may_be_blocked=False)
