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https://gitlab.freedesktop.org/pulseaudio/pavucontrol.git
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b2362f2223
Widgets (unlike Windows and Dialogs) returned by Gtk::Builder::get_widget* start owned by the GtkBuilder object, the idea being that they will get added to a container before the scope of the GtkBuilder object ends, and it thus automatically gets destroyed. But in the various ::create methods in pavucontrol, a pointer to the widget gets returned, so that it can be added to a cointainer by the caller. However as soon as the ::create method exits the GtkBuilder object owning the widget, and thus also the widget gets destroyed, and we end up returning free-ed memory. This commit fixes this by making all ::create methods take a reference on the widget before returning it, and having all the callers unreference the widget after adding it to a container. https://bugs.freedesktop.org/show_bug.cgi?id=83144 https://bugzilla.redhat.com/show_bug.cgi?id=1133339 Signed-off-by: Hans de Goede <hdegoede@redhat.com>
78 lines
2.1 KiB
C++
78 lines
2.1 KiB
C++
/***
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This file is part of pavucontrol.
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Copyright 2006-2008 Lennart Poettering
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Copyright 2009 Colin Guthrie
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pavucontrol is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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pavucontrol is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with pavucontrol. If not, see <http://www.gnu.org/licenses/>.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include "rolewidget.h"
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#include <pulse/ext-stream-restore.h>
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#include "i18n.h"
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RoleWidget::RoleWidget(BaseObjectType* cobject, const Glib::RefPtr<Gtk::Builder>& x) :
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StreamWidget(cobject, x) {
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lockToggleButton->hide();
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directionLabel->hide();
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deviceButton->hide();
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}
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RoleWidget* RoleWidget::create() {
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RoleWidget* w;
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Glib::RefPtr<Gtk::Builder> x = Gtk::Builder::create_from_file(GLADE_FILE, "streamWidget");
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x->get_widget_derived("streamWidget", w);
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w->reference();
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return w;
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}
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bool RoleWidget::onContextTriggerEvent(GdkEventButton*) {
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return false;
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}
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void RoleWidget::onMuteToggleButton() {
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StreamWidget::onMuteToggleButton();
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executeVolumeUpdate();
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}
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void RoleWidget::executeVolumeUpdate() {
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pa_ext_stream_restore_info info;
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if (updating)
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return;
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info.name = role.c_str();
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info.channel_map.channels = 1;
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info.channel_map.map[0] = PA_CHANNEL_POSITION_MONO;
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info.volume = volume;
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info.device = device == "" ? NULL : device.c_str();
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info.mute = muteToggleButton->get_active();
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pa_operation* o;
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if (!(o = pa_ext_stream_restore_write(get_context(), PA_UPDATE_REPLACE, &info, 1, TRUE, NULL, NULL))) {
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show_error(_("pa_ext_stream_restore_write() failed"));
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return;
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}
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pa_operation_unref(o);
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}
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