file chooser: Allow activating without double-click

Interpret a unmodified primary click on the selection like a double
click. This makes it possible to activate a file or open a folder
without using double-click.

1 files changed, 49 insertions, 0 deletions

diff --git a/gtk/gtkfilechooserwidget.c b/gtk/gtkfilechooserwidget.c
index 75470a8..47f595f 100644
--- a/gtk/gtkfilechooserwidget.c
+++ b/gtk/gtkfilechooserwidget.c
@@ -75,6 +75,7 @@
 #include "gtkseparator.h"
 #include "gtkmodelbutton.h"
 #include "gtkgesturelongpress.h"
+#include "gtkdebug.h"
 
 #include <cairo-gobject.h>
 
@@ -2341,6 +2342,25 @@ list_popup_menu_cb (GtkWidget            *widget,
   return TRUE;
 }
 
+static void
+get_selection_modifiers (GtkWidget       *widget,
+                         GdkEventButton  *event,
+                         gboolean        *modify,
+                         gboolean        *extend)
+{
+  GdkModifierType mask;
+
+  *modify = FALSE;
+  *extend = FALSE;
+
+  mask = gtk_widget_get_modifier_mask (widget, GDK_MODIFIER_INTENT_MODIFY_SELECTION);
+  if ((event->state & mask) == mask)
+    *modify = TRUE;
+  mask = gtk_widget_get_modifier_mask (widget, GDK_MODIFIER_INTENT_EXTEND_SELECTION);
+  if ((event->state & mask) == mask)
+    *extend = TRUE;
+}
+
 /* Callback used when a button is pressed on the file list.  We trap button 3 to
  * bring up a popup menu.
  */
@@ -2351,10 +2371,39 @@ list_button_press_event_cb (GtkWidget            *widget,
 {
   GtkFileChooserWidgetPrivate *priv = impl->priv;
   static gboolean in_press = FALSE;
+  GtkTreePath *path;
+  GtkTreeViewColumn *column;
+  GdkDevice *device;
+  gboolean modify, extend, is_touchscreen;
 
   if (in_press)
     return FALSE;
 
+  device = gdk_event_get_source_device ((GdkEvent *) event);
+  is_touchscreen = gtk_simulate_touchscreen () ||
+                   gdk_device_get_source (device) == GDK_SOURCE_TOUCHSCREEN;
+
+  get_selection_modifiers (widget, event, &modify, &extend);
+  if (!is_touchscreen &&
+      !modify && !extend &&
+      event->button == GDK_BUTTON_PRIMARY &&
+      gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (priv->browse_files_tree_view),
+                                     event->x, event->y,
+                                     &path, &column, NULL, NULL))
+    {
+      GtkTreeSelection *selection;
+
+      selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->browse_files_tree_view));
+      if (gtk_tree_selection_path_is_selected (selection, path))
+        {
+          list_row_activated (GTK_TREE_VIEW (priv->browse_files_tree_view), path, column, impl);
+          gtk_tree_path_free (path);
+          return TRUE;
+        }
+
+      gtk_tree_path_free (path);
+    }
+
   if (!gdk_event_triggers_context_menu ((GdkEvent *) event))
     return FALSE;