[PATCH] filechooser: restore pre-3.16 type-ahead-find with setting (off by default)

[Thomas Martitz <kugel rockbox org>]

The previous type-ahead-find was loved by many people, so removing it without
possibility to restore was not nice to them. This commit re-introduces it again
with a default-off seting so that the new default search-as-you-type is
untouched, for those who don't consider the new search a viable replacement.
---
 gtk/gtkfilechooserwidget.c                   | 35 +++++++++++++++++++++++++---
 gtk/org.gtk.Settings.FileChooser.gschema.xml |  7 ++++++
 2 files changed, 39 insertions(+), 3 deletions(-)

diff --git a/gtk/gtkfilechooserwidget.c b/gtk/gtkfilechooserwidget.c
index 94d051f..8d41775 100644
--- a/gtk/gtkfilechooserwidget.c
+++ b/gtk/gtkfilechooserwidget.c
@@ -354,6 +354,7 @@ struct _GtkFileChooserWidgetPrivate {
   guint show_size_column : 1;
   guint create_folders : 1;
   guint auto_selecting_first_row : 1;
+  guint use_type_ahead_find : 1;
 };
 
 #define MAX_LOADING_TIME 500
@@ -589,6 +590,7 @@ static void     clear_model_cache            (GtkFileChooserWidget *impl,
 static void     set_model_filter             (GtkFileChooserWidget *impl,
                                               GtkFileFilter        *filter);
 
+static void     set_sort_column              (GtkFileChooserWidget *impl);
 
 
 G_DEFINE_TYPE_WITH_CODE (GtkFileChooserWidget, gtk_file_chooser_widget, GTK_TYPE_BOX,
@@ -2437,7 +2439,11 @@ file_list_set_sort_column_ids (GtkFileChooserWidget *impl)
 {
   GtkFileChooserWidgetPrivate *priv = impl->priv;
 
-  gtk_tree_view_set_search_column (GTK_TREE_VIEW (priv->browse_files_tree_view), -1);
+  fprintf(stderr, "file_list_set_sort_column_ids use-type-ahead: %d\n", priv->use_type_ahead_find);
+  if (priv->use_type_ahead_find)
+    gtk_tree_view_set_search_column (GTK_TREE_VIEW (priv->browse_files_tree_view), MODEL_COL_NAME);
+  else
+    gtk_tree_view_set_search_column (GTK_TREE_VIEW (priv->browse_files_tree_view), -1);
 
   gtk_tree_view_column_set_sort_column_id (priv->list_name_column, MODEL_COL_NAME);
   gtk_tree_view_column_set_sort_column_id (priv->list_time_column, MODEL_COL_TIME);
@@ -3693,6 +3699,16 @@ change_icon_theme (GtkFileChooserWidget *impl)
   profile_end ("end", NULL);
 }
 
+static void
+change_type_ahead (GtkFileChooserWidget *impl, gboolean value)
+{
+  GtkFileChooserWidgetPrivate *priv = impl->priv;
+  priv->use_type_ahead_find = value;
+
+  file_list_set_sort_column_ids(impl);
+   set_sort_column(impl);
+}
+
 /* Callback used when a GtkSettings value changes */
 static void
 settings_notify_cb (GObject               *object,
@@ -3700,6 +3716,7 @@ settings_notify_cb (GObject               *object,
                     GtkFileChooserWidget *impl)
 {
   const char *name;
+  gboolean value;
 
   profile_start ("start", NULL);
 
@@ -3707,7 +3724,11 @@ settings_notify_cb (GObject               *object,
 
   if (strcmp (name, "gtk-icon-theme-name") == 0)
     change_icon_theme (impl);
-
+  if (strcmp (name, "use-type-ahead") == 0)
+    {
+      g_object_get (object, name, &value, NULL);
+      change_type_ahead (impl, value);
+    }
   profile_end ("end", NULL);
 }
 
@@ -3806,6 +3827,7 @@ settings_load (GtkFileChooserWidget *impl)
   gboolean show_hidden;
   gboolean show_size_column;
   gboolean sort_directories_first;
+  gboolean use_type_ahead_find;
   DateFormat date_format;
   gint sort_column;
   GtkSortType sort_order;
@@ -3823,10 +3845,12 @@ settings_load (GtkFileChooserWidget *impl)
   startup_mode = g_settings_get_enum (settings, SETTINGS_KEY_STARTUP_MODE);
   sort_directories_first = g_settings_get_boolean (settings, SETTINGS_KEY_SORT_DIRECTORIES_FIRST);
   date_format = g_settings_get_enum (settings, SETTINGS_KEY_DATE_FORMAT);
+  use_type_ahead_find = g_settings_get_boolean (settings, "use-type-ahead");
 
   if (!priv->show_hidden_set)
     set_show_hidden (impl, show_hidden);
   priv->show_size_column = show_size_column;
+  priv->use_type_ahead_find = use_type_ahead_find;
   gtk_tree_view_column_set_visible (priv->list_size_column, show_size_column);
 
   priv->sort_column = sort_column;
@@ -4332,6 +4356,7 @@ load_set_model (GtkFileChooserWidget *impl)
   gtk_tree_view_set_model (GTK_TREE_VIEW (priv->browse_files_tree_view),
                            GTK_TREE_MODEL (priv->browse_files_model));
   update_columns (impl, FALSE, _("Modified"));
+  g_object_set(priv->browse_files_tree_view, "enable-search", priv->use_type_ahead_find, NULL);
   file_list_set_sort_column_ids (impl);
   set_sort_column (impl);
   profile_msg ("    gtk_tree_view_set_model end", NULL);
@@ -7412,7 +7437,10 @@ recent_idle_cleanup (gpointer data)
 
   gtk_tree_view_set_model (GTK_TREE_VIEW (priv->browse_files_tree_view),
                            GTK_TREE_MODEL (priv->recent_model));
-  gtk_tree_view_set_search_column (GTK_TREE_VIEW (priv->browse_files_tree_view), -1);
+  if (priv->use_type_ahead_find)
+    gtk_tree_view_set_search_column (GTK_TREE_VIEW (priv->browse_files_tree_view), MODEL_COL_NAME);
+  else
+    gtk_tree_view_set_search_column (GTK_TREE_VIEW (priv->browse_files_tree_view), -1);
 
   gtk_tree_view_column_set_sort_column_id (priv->list_name_column, -1);
   gtk_tree_view_column_set_sort_column_id (priv->list_time_column, -1);
@@ -8556,6 +8584,7 @@ gtk_file_chooser_widget_init (GtkFileChooserWidget *impl)
   priv->recent_manager = gtk_recent_manager_get_default ();
   priv->create_folders = TRUE;
   priv->auto_selecting_first_row = FALSE;
+  priv->use_type_ahead_find = FALSE;
 
   /* Ensure GTK+ private types used by the template
    * definition before calling gtk_widget_init_template()
diff --git a/gtk/org.gtk.Settings.FileChooser.gschema.xml b/gtk/org.gtk.Settings.FileChooser.gschema.xml
index c3753f2..bdba1b0 100644
--- a/gtk/org.gtk.Settings.FileChooser.gschema.xml
+++ b/gtk/org.gtk.Settings.FileChooser.gschema.xml
@@ -148,6 +148,13 @@
         The amount of detail to show in the Modified column.
       </description>
     </key>
+    <key name="use-type-ahead" type='b'>
+      <default>false</default>
+      <summary>Enable type-ahead find</summary>
+      <description>
+        Whether to use new search method or previous type-ahead find.
+      </description>
+    </key>
   </schema>
 
 </schemalist>
-- 
2.5.0