Remove gtk_selection_model_user_select_item() again

This reverts commit 6a164ab306dad9096bde736c907494c71086d3c4.

The function was awkward and we now have only one caller again, so we
can fold it back into it.

4 files changed, 60 insertions, 103 deletions

diff --git a/docs/reference/gtk/gtk4-sections.txt b/docs/reference/gtk/gtk4-sections.txt
index 432e51a4f3..4344e85f30 100644
--- a/docs/reference/gtk/gtk4-sections.txt
+++ b/docs/reference/gtk/gtk4-sections.txt
@@ -453,8 +453,6 @@ gtk_selection_model_select_all
 gtk_selection_model_unselect_all
 gtk_selection_model_query_range
 <SUBSECTION>
-gtk_selection_model_user_select_item
-<SUBSECTION>
 gtk_selection_model_selection_changed
 <SUBSECTION Standard>
 GTK_SELECTION_MODEL
diff --git a/gtk/gtklistbase.c b/gtk/gtklistbase.c
index 10185ba728..d030e2ee76 100644
--- a/gtk/gtklistbase.c
+++ b/gtk/gtklistbase.c
@@ -119,22 +119,73 @@ gtk_list_base_select_item (GtkListBase *self,
 {
   GtkListBasePrivate *priv = gtk_list_base_get_instance_private (self);
   GtkSelectionModel *model;
+  gboolean success = FALSE;
+  guint n_items;
 
   model = gtk_list_item_manager_get_model (priv->item_manager);
   if (model == NULL)
     return;
 
-  if (gtk_selection_model_user_select_item (model,
-                                            pos,
-                                            modify,
-                                            extend ? gtk_list_item_tracker_get_position (priv->item_manager, priv->selected)
-                                                   : GTK_INVALID_LIST_POSITION))
+  n_items = g_list_model_get_n_items (G_LIST_MODEL (model));
+  if (pos >= n_items)
+    return;
+
+  if (extend)
+    {
+      guint extend_pos = gtk_list_item_tracker_get_position (priv->item_manager, priv->selected);
+
+      if (extend_pos < n_items)
+        {
+          guint max = MAX (extend_pos, pos);
+          guint min = MIN (extend_pos, pos);
+
+          if (modify)
+            {
+              if (gtk_selection_model_is_selected (model, extend_pos))
+                {
+                  success = gtk_selection_model_select_range (model,
+                                                              min,
+                                                              max - min + 1,
+                                                              FALSE);
+                }
+              else
+                {
+                  success = gtk_selection_model_unselect_range (model,
+                                                                min,
+                                                                max - min + 1);
+                }
+            }
+          else
+            {
+              success = gtk_selection_model_select_range (model,
+                                                          min,
+                                                          max - min + 1,
+                                                          TRUE);
+            }
+        }
+      /* If there's no range to select or selecting ranges isn't supported
+       * by the model, fall through to normal setting.
+       */
+    }
+  if (success)
+    return;
+
+  if (modify)
     {
-      gtk_list_item_tracker_set_position (priv->item_manager,
-                                          priv->selected,
-                                          pos,
-                                          0, 0);
+      if (gtk_selection_model_is_selected (model, pos))
+        success = gtk_selection_model_unselect_item (model, pos);
+      else
+        success = gtk_selection_model_select_item (model, pos, FALSE);
     }
+  else
+    {
+      success = gtk_selection_model_select_item (model, pos, TRUE);
+    }
+
+  gtk_list_item_tracker_set_position (priv->item_manager,
+                                      priv->selected,
+                                      pos,
+                                      0, 0);
 }
 
 static void
diff --git a/gtk/gtkselectionmodel.c b/gtk/gtkselectionmodel.c
index c5853e87a7..7be454fd74 100644
--- a/gtk/gtkselectionmodel.c
+++ b/gtk/gtkselectionmodel.c
@@ -382,90 +382,3 @@ gtk_selection_model_selection_changed (GtkSelectionModel *model,
   g_signal_emit (model, signals[SELECTION_CHANGED], 0, position, n_items);
 }
 
-/**
- * gtk_selection_model_user_select_item:
- * @self: a #GtkSelectionModel
- * @pos: position selected by the user. If this position is invalid
- *     no selection will be done.
- * @modify: %TRUE if the selection should be modified, %FALSE
- *     if a new selection should be done. This is usually set
- *     to %TRUE if the user keeps the <Shift> key pressed.
- * @extend_pos: the position to extend the selection from or
- *     an invalid position like #GTK_INVALID_LIST_POSITION to not
- *     extend the selection. Selections are usually extended
- *     from the last selected position if the user presses the
- *     <Ctrl> key. The last selected position is stored by the
- *     widget
- *
- * Does a selection according to how GTK list widgets modify
- * selections, both when clicking rows with the mouse or when using
- * the keyboard.
- *
- * Returns: %TRUE if the last selected position for further calls
- *     to this function should be updated to @pos, %FALSE if the
- *     last selected position should not change.
- **/
-gboolean
-gtk_selection_model_user_select_item (GtkSelectionModel *self,
-                                      guint              pos,
-                                      gboolean           modify,
-                                      guint              extend_pos)
-{
-  gboolean success = FALSE;
-  guint n_items;
-
-  g_return_val_if_fail (GTK_IS_SELECTION_MODEL (self), FALSE);
-
-  n_items = g_list_model_get_n_items (G_LIST_MODEL (self));
-  if (pos >= n_items)
-    return FALSE;
-
-  if (extend_pos < n_items)
-    {
-      guint max = MAX (extend_pos, pos);
-      guint min = MIN (extend_pos, pos);
-      if (modify)
-        {
-          if (gtk_selection_model_is_selected (self, extend_pos))
-            {
-              success = gtk_selection_model_select_range (self,
-                                                          min,
-                                                          max - min + 1,
-                                                          FALSE);
-            }
-          else
-            {
-              success = gtk_selection_model_unselect_range (self,
-                                                            min,
-                                                            max - min + 1);
-            }
-        }
-      else
-        {
-          success = gtk_selection_model_select_range (self,
-                                                      min,
-                                                      max - min + 1,
-                                                      TRUE);
-        }
-      /* If there's no range to select or selecting ranges isn't supported
-       * by the model, fall through to normal setting.
-       */
-    }
-  if (success)
-    return FALSE;
-
-  if (modify)
-    {
-      if (gtk_selection_model_is_selected (self, pos))
-        success = gtk_selection_model_unselect_item (self, pos);
-      else
-        success = gtk_selection_model_select_item (self, pos, FALSE);
-    }
-  else
-    {
-      success = gtk_selection_model_select_item (self, pos, TRUE);
-    }
-
-  return success;
-}
-
diff --git a/gtk/gtkselectionmodel.h b/gtk/gtkselectionmodel.h
index 6f3dcb28e1..c982a918ad 100644
--- a/gtk/gtkselectionmodel.h
+++ b/gtk/gtkselectionmodel.h
@@ -130,11 +130,6 @@ void                    gtk_selection_model_query_range         (GtkSelectionMod
                                                                  guint                  *n_items,
                                                                  gboolean               *selected);
 
-GDK_AVAILABLE_IN_ALL
-gboolean                gtk_selection_model_user_select_item    (GtkSelectionModel      *self,
-                                                                 guint                   pos,
-                                                                 gboolean                modify,
-                                                                 guint                   extend_pos);
 /* for implementations only */
 GDK_AVAILABLE_IN_ALL
 void                    gtk_selection_model_selection_changed   (GtkSelectionModel      *model,