[gnome-shell/gnome-3-34] shell/network-agent: Wrap nm_plugin_info_new_search_file()

[Florian Müllner <fmuellner src gnome org>]

commit c5dd9a934195dd1aec6b986eb1df6589b6e9879c
Author: Florian Müllner <fmuellner gnome org>
Date:   Sat Mar 14 21:51:33 2020 +0100

    shell/network-agent: Wrap nm_plugin_info_new_search_file()
    
    While we can use the libnm API directly from JS, the call will
    synchronously load the VPN service descriptions from disk.
    Previously we were lowering the impact by caching the result,
    but as we stopped doing that, it becomes more important to address
    the issue properly and move it off to a thread.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/issues/2386

 src/shell-network-agent.c | 57 +++++++++++++++++++++++++++++++++++++++++++++++
 src/shell-network-agent.h |  8 +++++++
 2 files changed, 65 insertions(+)
---
diff --git a/src/shell-network-agent.c b/src/shell-network-agent.c
index 8e1f82017b..4fab298e5a 100644
--- a/src/shell-network-agent.c
+++ b/src/shell-network-agent.c
@@ -478,6 +478,63 @@ shell_network_agent_respond (ShellNetworkAgent         *self,
   g_hash_table_remove (priv->requests, request_id);
 }
 
+static void
+search_vpn_plugin (GTask        *task,
+                   gpointer      object,
+                   gpointer      task_data,
+                   GCancellable *cancellable)
+{
+  NMVpnPluginInfo *info = NULL;
+  char *service = task_data;
+
+  info = nm_vpn_plugin_info_new_search_file (NULL, service);
+
+  if (info)
+    {
+      g_task_return_pointer (task, info, g_object_unref);
+    }
+  else
+    {
+      g_task_return_new_error (task,
+                               G_IO_ERROR, G_IO_ERROR_NOT_FOUND,
+                               "No plugin for %s", service);
+    }
+}
+
+void
+shell_network_agent_search_vpn_plugin (ShellNetworkAgent   *self,
+                                       const char          *service,
+                                       GAsyncReadyCallback  callback,
+                                       gpointer             user_data)
+{
+  g_autoptr(GTask) task = NULL;
+
+  g_return_if_fail (SHELL_IS_NETWORK_AGENT (self));
+  g_return_if_fail (service != NULL);
+
+  task = g_task_new (self, NULL, callback, user_data);
+  g_task_set_source_tag (task, shell_network_agent_search_vpn_plugin);
+  g_task_set_task_data (task, g_strdup (service), g_free);
+
+  g_task_run_in_thread (task, search_vpn_plugin);
+}
+
+/**
+ * shell_network_agent_search_vpn_plugin_finish:
+ *
+ * Returns: (nullable) (transfer full): The found plugin or %NULL
+ */
+NMVpnPluginInfo *
+shell_network_agent_search_vpn_plugin_finish (ShellNetworkAgent  *self,
+                                              GAsyncResult       *result,
+                                              GError            **error)
+{
+  g_return_val_if_fail (SHELL_IS_NETWORK_AGENT (self), NULL);
+  g_return_val_if_fail (G_IS_TASK (result), NULL);
+
+  return g_task_propagate_pointer (G_TASK (result), error);
+}
+
 static void
 shell_network_agent_cancel_get_secrets (NMSecretAgentOld *agent,
                                         const gchar      *connection_path,
diff --git a/src/shell-network-agent.h b/src/shell-network-agent.h
index 73dfe5b1d0..e01b368f0d 100644
--- a/src/shell-network-agent.h
+++ b/src/shell-network-agent.h
@@ -51,6 +51,14 @@ void               shell_network_agent_respond      (ShellNetworkAgent *self,
                                                      gchar             *request_id,
                                                      ShellNetworkAgentResponse response);
 
+void               shell_network_agent_search_vpn_plugin (ShellNetworkAgent   *self,
+                                                          const char          *service,
+                                                          GAsyncReadyCallback  callback,
+                                                          gpointer             user_data);
+NMVpnPluginInfo   *shell_network_agent_search_vpn_plugin_finish (ShellNetworkAgent  *self,
+                                                                 GAsyncResult       *result,
+                                                                 GError            **error);
+
 /* If these are kept in sync with nm-applet, secrets will be shared */
 #define SHELL_KEYRING_UUID_TAG "connection-uuid"
 #define SHELL_KEYRING_SN_TAG "setting-name"