[gtk+] GtkFileChooser: Don't fill location_entry if we just populated the file list

[Federico Mena Quintero <federico src gnome org>]

commit 70eb35d5696030271a0c76f85b705831fa6405de
Author: Volker Sobek <reklov live com>
Date:   Thu Dec 12 17:41:00 2013 -0600

    GtkFileChooser: Don't fill location_entry if we just populated the file list
    
    Only fill the location entry with the file name of the tree view's
    selected file when the selection was done by the user.
    
    When the file chooser's action is GTK_FILE_CHOOSER_ACTION_OPEN, it
    selects the first file in the tree view once loading has finished. For
    this case we don't want it to insert the file name in the location
    entry, as it hinders efficient navigation using the location entry. To
    achieve this, use a priv flag to keep track of whether the
    selection-changed signal was caused by the file chooser itself.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=386569

 gtk/gtkfilechooserdefault.c |   68 ++++++++++++++++++++++++++-----------------
 1 files changed, 41 insertions(+), 27 deletions(-)
---
diff --git a/gtk/gtkfilechooserdefault.c b/gtk/gtkfilechooserdefault.c
index 811d938..c752984 100644
--- a/gtk/gtkfilechooserdefault.c
+++ b/gtk/gtkfilechooserdefault.c
@@ -306,6 +306,7 @@ typedef struct {
   guint shortcuts_current_folder_active : 1;
   guint show_size_column : 1;
   guint create_folders : 1;
+  guint auto_selecting_first_row : 1;
 } GtkFileChooserDefaultPrivate;
 
 #define GTK_FILE_CHOOSER_DEFAULT_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST ((klass), 
GTK_TYPE_FILE_CHOOSER_DEFAULT, GtkFileChooserDefaultClass))
@@ -3644,8 +3645,20 @@ browse_files_select_first_row (GtkFileChooserDefault *impl)
 
   /* If the list is empty, do nothing. */
   if (gtk_tree_model_get_iter (tree_model, &dummy_iter, path))
+    {
+      /* Although the following call to gtk_tree_view_set_cursor() is intended to
+       * only change the focus to the first row (not select it), GtkTreeView *will*
+       * select the row anyway due to bug #492206.  So, we'll use a flag to
+       * keep our own callbacks from changing the location_entry when the selection
+       * is changed.  This entire function, browse_files_select_first_row(), may
+       * go away when that bug is fixed in GtkTreeView.
+       */
+      priv->auto_selecting_first_row = TRUE;
+
       gtk_tree_view_set_cursor (GTK_TREE_VIEW (priv->browse_files_tree_view), path, NULL, FALSE);
 
+      priv->auto_selecting_first_row = FALSE;
+    }
   gtk_tree_path_free (path);
 }
 
@@ -4307,40 +4320,40 @@ update_chooser_entry (GtkFileChooserDefault *impl)
     {
       if (priv->operation_mode == OPERATION_MODE_BROWSE)
         {
-          GFileInfo *info;
-          gboolean change_entry;
+         GFileInfo *info;
+         gboolean change_entry;
 
-          info = _gtk_file_system_model_get_info (priv->browse_files_model, &closure.first_selected_iter);
+         info = _gtk_file_system_model_get_info (priv->browse_files_model, &closure.first_selected_iter);
 
-          /* If the cursor moved to the row of the newly created folder,
-           * retrieving info will return NULL.
-           */
-          if (!info)
-            return;
+         /* If the cursor moved to the row of the newly created folder,
+          * retrieving info will return NULL.
+          */
+         if (!info)
+           return;
 
-          g_free (priv->browse_files_last_selected_name);
-          priv->browse_files_last_selected_name =
-            g_strdup (g_file_info_get_display_name (info));
+         g_free (priv->browse_files_last_selected_name);
+         priv->browse_files_last_selected_name =
+           g_strdup (g_file_info_get_display_name (info));
 
-          if (priv->action == GTK_FILE_CHOOSER_ACTION_OPEN ||
-              priv->action == GTK_FILE_CHOOSER_ACTION_SAVE ||
-              priv->action == GTK_FILE_CHOOSER_ACTION_CREATE_FOLDER)
-            {
-              /* Don't change the name when clicking on a folder... */
-              change_entry = (! _gtk_file_info_consider_as_directory (info));
-            }
-          else
-            change_entry = TRUE; /* ... unless we are in SELECT_FOLDER mode */
+         if (priv->action == GTK_FILE_CHOOSER_ACTION_OPEN ||
+             priv->action == GTK_FILE_CHOOSER_ACTION_SAVE ||
+             priv->action == GTK_FILE_CHOOSER_ACTION_CREATE_FOLDER)
+           {
+             /* Don't change the name when clicking on a folder... */
+             change_entry = (! _gtk_file_info_consider_as_directory (info));
+           }
+         else
+           change_entry = TRUE; /* ... unless we are in SELECT_FOLDER mode */
 
-          if (change_entry)
-            {
-              gtk_entry_set_text (GTK_ENTRY (priv->location_entry), priv->browse_files_last_selected_name);
+         if (change_entry && !priv->auto_selecting_first_row)
+           {
+             gtk_entry_set_text (GTK_ENTRY (priv->location_entry), priv->browse_files_last_selected_name);
 
-              if (priv->action == GTK_FILE_CHOOSER_ACTION_SAVE)
-                _gtk_file_chooser_entry_select_filename (GTK_FILE_CHOOSER_ENTRY (priv->location_entry));
-            }
+             if (priv->action == GTK_FILE_CHOOSER_ACTION_SAVE)
+               _gtk_file_chooser_entry_select_filename (GTK_FILE_CHOOSER_ENTRY (priv->location_entry));
+           }
 
-          return;
+         return;
         }
       else if (priv->operation_mode == OPERATION_MODE_RECENT
               && priv->action == GTK_FILE_CHOOSER_ACTION_SAVE)
@@ -7543,6 +7556,7 @@ _gtk_file_chooser_default_init (GtkFileChooserDefault *impl)
   priv->sort_order = GTK_SORT_ASCENDING;
   priv->recent_manager = gtk_recent_manager_get_default ();
   priv->create_folders = TRUE;
+  priv->auto_selecting_first_row = FALSE;
 
   /* Ensure GTK+ private types used by the template
    * definition before calling gtk_widget_init_template()