[gnome-todo] dnd-row: Adapt to GTK4 DnD changes

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 8eb020e780831c0a8f5ea5f89a0a2c11ad1bed0f
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Thu Feb 20 09:51:52 2020 -0300

    dnd-row: Adapt to GTK4 DnD changes

 src/task-list-view/gtd-dnd-row.c | 25 ++++++++-----------------
 src/task-list-view/gtd-dnd-row.h |  1 +
 2 files changed, 9 insertions(+), 17 deletions(-)
---
diff --git a/src/task-list-view/gtd-dnd-row.c b/src/task-list-view/gtd-dnd-row.c
index 474ef08..573e24f 100644
--- a/src/task-list-view/gtd-dnd-row.c
+++ b/src/task-list-view/gtd-dnd-row.c
@@ -219,14 +219,13 @@ gtd_dnd_row_drag_motion (GtkWidget *widget,
 }
 
 gboolean
-gtd_dnd_row_drag_drop (GtkWidget *widget,
-                       GdkDrop   *drop,
-                       gint       x,
-                       gint       y)
+gtd_dnd_row_drag_drop (GtkWidget  *widget,
+                       GtdTaskRow *source_row,
+                       GdkDrop    *drop,
+                       gint        x,
+                       gint        y)
 {
-#if 0
   GtdDndRow *self;
-  GtkWidget *source_widget, *row;
   GtdTask *row_task, *target_task;
   GdkDrag *drag;
 
@@ -238,24 +237,17 @@ gtd_dnd_row_drag_drop (GtkWidget *widget,
 
   gtk_widget_hide (widget);
 
-  row = NULL;
-  source_widget = gtk_drag_get_source_widget (drag);
-
-  if (!source_widget)
-    return FALSE;
-
   /*
    * When the drag operation began, the source row was hidden. Now is the time
    * to show it again.
    */
-  row = gtk_widget_get_ancestor (source_widget, GTD_TYPE_TASK_ROW);
-  gtk_widget_show (row);
+  gtk_widget_show (GTK_WIDGET (source_row));
 
   /* Do not allow dropping on itself, nor on the new task row */
-  if (!row || row == widget || GTD_IS_NEW_TASK_ROW (row))
+  if (!source_row || (GtkWidget*) source_row == widget || GTD_IS_NEW_TASK_ROW (source_row))
     return FALSE;
 
-  row_task = gtd_task_row_get_task (GTD_TASK_ROW (row));
+  row_task = gtd_task_row_get_task (source_row);
   target_task = get_real_task_for_depth (self);
 
   if (target_task)
@@ -284,6 +276,5 @@ gtd_dnd_row_drag_drop (GtkWidget *widget,
 
   gtk_list_box_invalidate_sort (GTK_LIST_BOX (gtk_widget_get_parent (widget)));
 
-#endif
   return FALSE;
 }
diff --git a/src/task-list-view/gtd-dnd-row.h b/src/task-list-view/gtd-dnd-row.h
index 3056ca1..0bdcecb 100644
--- a/src/task-list-view/gtd-dnd-row.h
+++ b/src/task-list-view/gtd-dnd-row.h
@@ -38,6 +38,7 @@ void                 gtd_dnd_row_set_row_above                   (GtdDndRow
 
 
 gboolean             gtd_dnd_row_drag_drop                       (GtkWidget          *widget,
+                                                                  GtdTaskRow         *source_row,
                                                                   GdkDrop            *drop,
                                                                   gint                x,
                                                                   gint                y);