gplugin/gplugin

Don't explicitly use shared_library on gplugin, gplugin-gtk3, and gplugin-gtk4

By just using the library function meson can choose to static link these into
another target.

Testing Done:
Did intial testing in the pidgin tree by hacking `gplugin/meson.build` and used `ldd` to verify that gplugin was staticly linked and that plugins still worked.

Reviewed at https://reviews.imfreedom.org/r/1346/
/*
* Copyright (C) 2011-2021 Gary Kramlich <grim@reaperworld.com>
* Copyright (C) 2013 Ankit Vani <a@nevitus.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <https://www.gnu.org/licenses/>.
*/
#include <gplugin.h>
#include <gplugin-native.h>
#include "dynamic-test.h"
static DynamicTest *test_object = NULL;
static GPluginPluginInfo *
dynamic_user_query(G_GNUC_UNUSED GError **error)
{
const gchar *const dependencies[] = {"gplugin/dynamic-type-provider", NULL};
/* clang-format off */
return gplugin_plugin_info_new(
"gplugin/dynamic-type-user",
GPLUGIN_NATIVE_PLUGIN_ABI_VERSION,
"dependencies", dependencies,
NULL);
/* clang-format on */
}
static gboolean
dynamic_user_load(G_GNUC_UNUSED GPluginPlugin *plugin, GError **error)
{
test_object = g_object_new(DYNAMIC_TYPE_TEST, NULL);
if(test_object == NULL) {
g_set_error(
error,
GPLUGIN_DOMAIN,
0,
"could not create an instance of DynamicTest");
return FALSE;
}
return TRUE;
}
static gboolean
dynamic_user_unload(
G_GNUC_UNUSED GPluginPlugin *plugin,
G_GNUC_UNUSED gboolean shutdown,
GError **error)
{
gpointer weak_test_object = test_object;
g_object_add_weak_pointer(G_OBJECT(test_object), &weak_test_object);
g_object_unref(test_object);
if(DYNAMIC_IS_TEST(weak_test_object)) {
g_set_error(error, GPLUGIN_DOMAIN, 0, "test_object is still valid");
return FALSE;
}
return TRUE;
}
GPLUGIN_NATIVE_PLUGIN_DECLARE(dynamic_user)