49 lines
1.6 KiB
C++
49 lines
1.6 KiB
C++
/* This file is part of Clementine.
|
|
Copyright 2012, David Sansome <me@davidsansome.com>
|
|
|
|
Clementine 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 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
Clementine 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 Clementine. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "signalchecker.h"
|
|
|
|
#include "core/logging.h"
|
|
|
|
bool CheckedGConnect(
|
|
gpointer source,
|
|
const char* signal,
|
|
GCallback callback,
|
|
gpointer data,
|
|
const int callback_param_count) {
|
|
guint signal_id = 0;
|
|
GQuark detail = 0;
|
|
|
|
if (!g_signal_parse_name(signal, G_OBJECT_TYPE(source), &signal_id, &detail, false)) {
|
|
qFatal("Connecting to invalid signal: %s", signal);
|
|
return false;
|
|
}
|
|
|
|
GSignalQuery query;
|
|
g_signal_query(signal_id, &query);
|
|
// The signature for a signal callback is always:
|
|
// return_type callback(gpointer data1, params..., gpointer data2);
|
|
int signal_params = query.n_params + 2;
|
|
if (signal_params != callback_param_count) {
|
|
qFatal("Connecting callback to signal with different parameters counts");
|
|
return false;
|
|
}
|
|
|
|
g_signal_connect(source, signal, G_CALLBACK(callback), data);
|
|
return true;
|
|
}
|