[gtk+/wip/csoriano/bookmarks: 4/4] gtkplacessidebar: make insensitive invalid drop targets

[Carlos Soriano Sánchez <csoriano src gnome org>]

commit 8325aca00e560ab4e7daddd8ed9a22c829d89d4d
Author: Carlos Soriano <csoriano gnome org>
Date:   Mon Apr 13 01:24:10 2015 +0200

    gtkplacessidebar: make insensitive invalid drop targets

 gtk/gtkplacessidebar.c |   89 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 89 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkplacessidebar.c b/gtk/gtkplacessidebar.c
index 1444d58..8122c7b 100644
--- a/gtk/gtkplacessidebar.c
+++ b/gtk/gtkplacessidebar.c
@@ -1440,6 +1440,74 @@ pos_is_into_or_before (GtkTreeViewDropPosition pos)
   return (pos == GTK_TREE_VIEW_DROP_BEFORE || pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE);
 }
 
+static void
+dim_label (GtkPlacesSidebar *sidebar,
+           gint              pos)
+{
+  g_print ("dim label %d\n", pos);
+}
+
+static void
+dedim_label (GtkPlacesSidebar *sidebar,
+           gint              pos)
+{
+  g_print ("dim label %d\n", pos);
+}
+
+static void
+update_possible_drop_targets (GtkPlacesSidebar *sidebar)
+{
+  GtkTreeIter iter;
+  PlaceType place_type;
+  gchar *uri;
+  gboolean dim;
+  gint index;
+
+  if (!gtk_tree_model_get_iter_first (GTK_TREE_MODEL (sidebar->store), &iter))
+    return;
+
+  index = 0;
+  do
+    {
+      gtk_tree_model_get (GTK_TREE_MODEL (sidebar->store), &iter,
+                          PLACES_SIDEBAR_COLUMN_ROW_TYPE, &place_type,
+                          PLACES_SIDEBAR_COLUMN_URI, &uri,
+                          -1);
+      if (sidebar->dragging_over)
+        {
+          switch (place_type)
+            {
+              case PLACES_CONNECT_TO_SERVER:
+                dim = TRUE;
+                break;
+              case PLACES_BUILT_IN:
+
+                if (g_strcmp0 (uri, "recent:///") == 0)
+                  dim = TRUE;
+                else
+                  dim = FALSE;
+
+                g_free (uri);
+                break;
+              default:
+                dim = FALSE;
+                break;
+           }
+        }
+      else
+        {
+          dim = FALSE;
+        }
+      if (dim)
+        dim_label (sidebar, index);
+      else
+        dedim_label (sidebar, index);
+
+      index++;
+    }
+  while (gtk_tree_model_iter_next (GTK_TREE_MODEL (sidebar->store), &iter));
+}
+
 /* Computes the appropriate row and position for dropping */
 static gboolean
 compute_drop_position (GtkTreeView              *tree_view,
@@ -3846,6 +3914,23 @@ icon_cell_renderer_func (GtkTreeViewColumn *column,
   g_object_set (cell, "visible", type != PLACES_HEADING, NULL);
 }
 
+static void
+icon_cell_renderer_text_func (GtkTreeViewColumn *column,
+                         GtkCellRenderer   *cell,
+                         GtkTreeModel      *model,
+                         GtkTreeIter       *iter,
+                         gpointer           user_data)
+{
+  PlaceType type;
+
+  gtk_tree_model_get (model, iter,
+                      PLACES_SIDEBAR_COLUMN_ROW_TYPE, &type,
+                      -1);
+
+  g_print ("sensitive false %d\n", gtk_cell_renderer_get_sensitive (cell));
+  g_object_set (cell, "sensitive", FALSE, NULL);
+}
+
 static gint
 places_sidebar_sort_func (GtkTreeModel *model,
                           GtkTreeIter  *iter_a,
@@ -4142,11 +4227,15 @@ gtk_places_sidebar_init (GtkPlacesSidebar *sidebar)
                                        "text", PLACES_SIDEBAR_COLUMN_NAME,
                                        "visible", PLACES_SIDEBAR_COLUMN_NO_EJECT,
                                        "editable-set", PLACES_SIDEBAR_COLUMN_BOOKMARK,
+                                       "sensitive", FALSE,
                                        NULL);
   g_object_set (cell,
                 "ellipsize", PANGO_ELLIPSIZE_END,
                 "ellipsize-set", TRUE,
                 NULL);
+  gtk_tree_view_column_set_cell_data_func (col, cell,
+                                           icon_cell_renderer_text_func,
+                                           sidebar, NULL);
 
   g_signal_connect (cell, "edited",
                     G_CALLBACK (bookmarks_edited), sidebar);