Add a file-set signal to the filechooser button. Bug 353196.

2006-12-26  Mariano Suárez-Alvarez  <mariano@gnome.org>

	* gtk/gtkfilechooserbuuton.[hc]: Add a file-set signal to the
	filechooser button. Bug 353196.

3 files changed, 34 insertions, 2 deletions

diff --git a/gtk/gtkfilechooser.c b/gtk/gtkfilechooser.c
index 384a89bcef..68243520b9 100644
--- a/gtk/gtkfilechooser.c
+++ b/gtk/gtkfilechooser.c
@@ -140,7 +140,7 @@ gtk_file_chooser_class_init (gpointer g_iface)
    * gtk_file_chooser_get_preview_filename() or
    * gtk_file_chooser_get_preview_uri() to get the name of the file to preview.
    * Your widget may not be able to preview all kinds of files; your callback
-   * must call gtk_file_chooser_set_preview_wiget_active() to inform the file
+   * must call gtk_file_chooser_set_preview_widget_active() to inform the file
    * chooser about whether the preview was generated successfully or not.
    *
    * Please see the example code in <xref linkend="gtkfilechooser-preview"/>.
diff --git a/gtk/gtkfilechooserbutton.c b/gtk/gtkfilechooserbutton.c
index 9c66da518a..e5c23d613e 100644
--- a/gtk/gtkfilechooserbutton.c
+++ b/gtk/gtkfilechooserbutton.c
@@ -48,6 +48,7 @@
 #include "gtkfilechooserdialog.h"
 #include "gtkfilechooserprivate.h"
 #include "gtkfilechooserutils.h"
+#include "gtkmarshalers.h"
 
 #include "gtkfilechooserbutton.h"
 
@@ -86,6 +87,13 @@ enum
   PROP_WIDTH_CHARS
 };
 
+/* Signals */
+enum
+{
+  FILE_SET,
+  LAST_SIGNAL
+};
+
 /* TreeModel Columns */
 enum
 {
@@ -301,6 +309,7 @@ static void     dialog_response_cb               (GtkDialog      *dialog,
 						  gint            response,
 						  gpointer        user_data);
 
+static guint file_chooser_button_signals[LAST_SIGNAL] = { 0 };
 
 /* ******************* *
  *  GType Declaration  *
@@ -342,6 +351,26 @@ gtk_file_chooser_button_class_init (GtkFileChooserButtonClass * class)
   widget_class->style_set = gtk_file_chooser_button_style_set;
   widget_class->screen_changed = gtk_file_chooser_button_screen_changed;
   widget_class->mnemonic_activate = gtk_file_chooser_button_mnemonic_activate;
+  
+  /**
+   * GtkFileChooserButtons::file-set:
+   * @widget: the object which received the signal.
+   *
+   * The ::file-set signal is emitted when the user selects a file.
+   * 
+   * Note that this signal is only emitted when the <emphasis>user</emphasis>
+   * changes the file. 
+   *
+   * Since: 2.12
+   */
+  file_chooser_button_signals[FILE_SET] =
+    g_signal_new (I_("file-set"),
+		  G_TYPE_FROM_CLASS (gobject_class),
+		  G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
+		  G_STRUCT_OFFSET (GtkFileChooserButtonClass, file_set),
+		  NULL, NULL,
+		  _gtk_marshal_VOID__VOID,
+		  G_TYPE_NONE, 0);
 
   /**
    * GtkFileChooserButton:dialog:
@@ -2695,6 +2724,8 @@ dialog_response_cb (GtkDialog *dialog,
 
   gtk_widget_set_sensitive (priv->combo_box, TRUE);
   gtk_widget_hide (priv->dialog);
+
+  g_signal_emit_by_name (user_data, "file-set");
 }
 
 
diff --git a/gtk/gtkfilechooserbutton.h b/gtk/gtkfilechooserbutton.h
index 8d896b4c19..979c4b577e 100644
--- a/gtk/gtkfilechooserbutton.h
+++ b/gtk/gtkfilechooserbutton.h
@@ -58,6 +58,8 @@ struct _GtkFileChooserButtonClass
   /*< private >*/
   GtkHBoxClass parent_class;
 
+  void (* file_set) (GtkFileChooserButton *fc);
+
   void (*__gtk_reserved1);
   void (*__gtk_reserved2);
   void (*__gtk_reserved3);
@@ -65,7 +67,6 @@ struct _GtkFileChooserButtonClass
   void (*__gtk_reserved5);
   void (*__gtk_reserved6);
   void (*__gtk_reserved7);
-  void (*__gtk_reserved8);
 };