[gnome-panel] panel: add support for initial setup dialog

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 69d6d002cf623dcae38e547ff45c9a276ffee6a2
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Sat Sep 15 22:48:47 2018 +0300

    panel: add support for initial setup dialog

 gnome-panel/panel.c | 99 ++++++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 95 insertions(+), 4 deletions(-)
---
diff --git a/gnome-panel/panel.c b/gnome-panel/panel.c
index e63740d87..4f31f31bf 100644
--- a/gnome-panel/panel.c
+++ b/gnome-panel/panel.c
@@ -27,6 +27,7 @@
 #include "applet.h"
 #include "button-widget.h"
 #include "launcher.h"
+#include "panel-applets-manager.h"
 #include "panel-bindings.h"
 #include "panel-context-menu.h"
 #include "panel-util.h"
@@ -1034,6 +1035,81 @@ drag_leave_cb (GtkWidget *widget,
        panel_toplevel_queue_auto_hide (toplevel);
 }
 
+
+typedef struct
+{
+       PanelWidget         *panel;
+
+       GdkDragContext      *context;
+       guint                time;
+
+       PanelObjectPackType  pack_type;
+       int                  pack_index;
+       gchar               *iid;
+} InitialSetupData;
+
+static InitialSetupData *
+initial_setup_data_new (PanelWidget         *panel,
+                        GdkDragContext      *context,
+                        guint                time,
+                        PanelObjectPackType  pack_type,
+                        int                  pack_index,
+                        const gchar         *iid)
+{
+       InitialSetupData *data;
+
+       data = g_new0 (InitialSetupData, 1);
+
+       data->panel = panel;
+
+       data->context = context;
+       data->time = time;
+
+       data->pack_type = pack_type;
+       data->pack_index = pack_index;
+       data->iid = g_strdup (iid);
+
+       return data;
+}
+
+static void
+initial_setup_data_free (gpointer user_data)
+{
+       InitialSetupData *data;
+
+       data = (InitialSetupData *) user_data;
+
+       g_free (data->iid);
+       g_free (data);
+}
+
+static void
+initial_setup_dialog_cb (GpInitialSetupDialog *dialog,
+                         gboolean              canceled,
+                         gpointer              user_data)
+{
+       InitialSetupData *data;
+       GVariant *initial_settings;
+
+       data = (InitialSetupData *) user_data;
+
+       if (canceled) {
+               gtk_drag_finish (data->context, FALSE, FALSE, data->time);
+               return;
+       }
+
+       initial_settings = gp_initital_setup_dialog_get_settings (dialog);
+
+       panel_applet_frame_create (data->panel->toplevel,
+                                  data->pack_type,
+                                  data->pack_index,
+                                  data->iid,
+                                  initial_settings);
+
+       gtk_drag_finish (data->context, TRUE, FALSE, data->time);
+       g_variant_unref (initial_settings);
+}
+
 static void
 panel_receive_dnd_data (PanelWidget         *panel,
                        guint                info,
@@ -1079,10 +1155,25 @@ panel_receive_dnd_data (PanelWidget         *panel,
                        return;
                }
                if (panel_layout_is_writable ()) {
-                       panel_applet_frame_create (panel->toplevel,
-                                                  pack_type, pack_index,
-                                                  (char *) data, NULL);
-                       success = TRUE;
+                       InitialSetupData *initial_setup_data;
+
+                       initial_setup_data = initial_setup_data_new (panel, context, time_,
+                                                                    pack_type, pack_index,
+                                                                    (char *) data);
+
+                       if (!panel_applets_manager_open_initial_setup_dialog ((char *) data,
+                                                                             NULL,
+                                                                             initial_setup_dialog_cb,
+                                                                             initial_setup_data,
+                                                                             initial_setup_data_free)) {
+                               panel_applet_frame_create (panel->toplevel,
+                                                          pack_type, pack_index,
+                                                          (char *) data, NULL);
+
+                               success = TRUE;
+                       } else {
+                               return;
+                       }
                } else {
                        success = FALSE;
                }