gnome: add incoming call notifications

This patch requires libnotify.

Refs #73512

Change-Id: Icd98446ed64be42f5080b96924859973b28703dc
diff --git a/src/ringnotify.cpp b/src/ringnotify.cpp
new file mode 100644
index 0000000..d76ac97
--- /dev/null
+++ b/src/ringnotify.cpp
@@ -0,0 +1,104 @@
+/*
+ *  Copyright (C) 2015 Savoir-Faire Linux Inc.
+ *  Author: Stepan Salenikovich <stepan.salenikovich@savoirfairelinux.com>
+ *
+ *  This program 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.
+ *
+ *  This program 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 this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
+ *
+ *  Additional permission under GNU GPL version 3 section 7:
+ *
+ *  If you modify this program, or any covered work, by linking or
+ *  combining it with the OpenSSL project's OpenSSL library (or a
+ *  modified version of that library), containing parts covered by the
+ *  terms of the OpenSSL or SSLeay licenses, Savoir-Faire Linux Inc.
+ *  grants you additional permission to convey the resulting work.
+ *  Corresponding Source for a non-source form of such a combination
+ *  shall include the source code for the parts of OpenSSL used as well
+ *  as that of the covered work.
+ */
+
+#include "ringnotify.h"
+#include "config.h"
+
+#if USE_LIBNOTIFY
+#include <libnotify/notify.h>
+#include <memory>
+#include "delegates/pixbufdelegate.h"
+#include <call.h>
+#include <QtCore/QSize>
+#endif
+
+void
+ring_notify_init()
+{
+#if USE_LIBNOTIFY
+    notify_init("Ring");
+#endif
+}
+
+void
+ring_notify_uninit()
+{
+#if USE_LIBNOTIFY
+    if (notify_is_initted())
+        notify_uninit();
+#endif
+}
+
+gboolean
+ring_notify_is_initted()
+{
+#if USE_LIBNOTIFY
+    return notify_is_initted();
+#else
+    return FALSE;
+#endif
+}
+
+gboolean
+ring_notify_incoming_call(
+#if !USE_LIBNOTIFY
+    G_GNUC_UNUSED
+#endif
+    Call* call)
+{
+#if USE_LIBNOTIFY
+    g_return_val_if_fail(call, FALSE);
+
+    gchar *body = g_strdup_printf("%s", call->formattedName().toUtf8().constData());
+    NotifyNotification *notification = notify_notification_new("Incoming call", body, NULL);
+
+    /* get photo */
+    QVariant var_p = PixbufDelegate::instance()->callPhoto(
+        call->peerContactMethod(), QSize(50, 50), false);
+    std::shared_ptr<GdkPixbuf> photo = var_p.value<std::shared_ptr<GdkPixbuf>>();
+    notify_notification_set_image_from_pixbuf(notification, photo.get());
+
+    /* calls have highest urgency */
+    notify_notification_set_urgency(notification, NOTIFY_URGENCY_CRITICAL);
+
+    notify_notification_set_timeout(notification, NOTIFY_EXPIRES_DEFAULT);
+
+    GError *error = NULL;
+    if (notify_notification_show(notification, &error)) {
+        return TRUE;
+    } else {
+        g_warning("failed to send notification: %s", error->message);
+        g_clear_error(&error);
+        return FALSE;
+    }
+#else
+    return FALSE;
+#endif
+}