53 lines
1.7 KiB
C++
53 lines
1.7 KiB
C++
|
/*
|
||
|
|
* Strawberry Music Player
|
||
|
|
* This file was part of Clementine.
|
||
|
|
* Copyright 2010, David Sansome <me@davidsansome.com>
|
||
|
|
* Copyright 2012, 2014, John Maguire <john.maguire@gmail.com>
|
||
|
|
* Copyright 2014, Krzysztof Sobiecki <sobkas@gmail.com>
|
||
|
|
*
|
||
|
|
* Strawberry 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.
|
||
|
|
*
|
||
|
|
* Strawberry 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 Strawberry. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "config.h"
|
||
|
|
|
||
|
|
#include "signalchecker.h"
|
||
|
|
|
||
|
|
#include "core/logging.h"
|
||
|
|
|
||
|
|
gulong 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 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
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 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
return g_signal_connect(source, signal, G_CALLBACK(callback), data);
|
||
|
|
|
||
|
|
}
|
||
|
|
|