From 6c7fcbe1d5ede0eaa6c6f2c10b0f0597ecdfffbd Mon Sep 17 00:00:00 2001
From: Cody Russell <crussell@canonical.com>
Date: Fri, 5 Mar 2010 16:04:11 +0000
Subject: Add grab/release signals

---
 example/menus.c        | 15 +++++++++++++++
 src/idoscalemenuitem.c | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 47 insertions(+)

diff --git a/example/menus.c b/example/menus.c
index 7d4b282..133c7c8 100644
--- a/example/menus.c
+++ b/example/menus.c
@@ -3,6 +3,18 @@
 #include "idoscalemenuitem.h"
 #include "idoentrymenuitem.h"
 
+static void
+slider_grabbed (GtkWidget *widget, gpointer user_data)
+{
+  g_print ("grabbed\n");
+}
+
+static void
+slider_released (GtkWidget *widget, gpointer user_data)
+{
+  g_print ("released\n");
+}
+
 int
 main (int argc, char *argv[])
 {
@@ -46,6 +58,9 @@ main (int argc, char *argv[])
   gtk_image_set_from_stock (GTK_IMAGE (image), GTK_STOCK_OPEN, GTK_ICON_SIZE_MENU);
   gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
 
+  g_signal_connect (menuitem, "slider-grabbed", G_CALLBACK (slider_grabbed), NULL);
+  g_signal_connect (menuitem, "slider-released", G_CALLBACK (slider_released), NULL);
+
   menuitem = ido_entry_menu_item_new ();
   gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
 
diff --git a/src/idoscalemenuitem.c b/src/idoscalemenuitem.c
index a7ae907..ca1e678 100644
--- a/src/idoscalemenuitem.c
+++ b/src/idoscalemenuitem.c
@@ -69,12 +69,20 @@ struct _IdoScaleMenuItemPrivate {
   gboolean       reverse_scroll;
 };
 
+enum {
+  SLIDER_GRABBED,
+  SLIDER_RELEASED,
+  LAST_SIGNAL
+};
+
 enum {
   PROP_0,
   PROP_ADJUSTMENT,
   PROP_REVERSE_SCROLL_EVENTS
 };
 
+static guint signals[LAST_SIGNAL] = { 0 };
+
 G_DEFINE_TYPE (IdoScaleMenuItem, ido_scale_menu_item, GTK_TYPE_MENU_ITEM)
 
 #define GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), IDO_TYPE_SCALE_MENU_ITEM, IdoScaleMenuItemPrivate))
@@ -190,6 +198,22 @@ ido_scale_menu_item_class_init (IdoScaleMenuItemClass *item_class)
                                                          FALSE,
                                                          G_PARAM_READWRITE));
 
+  signals[SLIDER_GRABBED] = g_signal_new ("slider-grabbed",
+                                          G_OBJECT_CLASS_TYPE (gobject_class),
+                                          G_SIGNAL_RUN_FIRST,
+                                          0,
+                                          NULL, NULL,
+                                          g_cclosure_marshal_VOID__VOID,
+                                          G_TYPE_NONE, 0);
+
+  signals[SLIDER_RELEASED] = g_signal_new ("slider-released",
+                                           G_OBJECT_CLASS_TYPE (gobject_class),
+                                           G_SIGNAL_RUN_FIRST,
+                                           0,
+                                           NULL, NULL,
+                                           g_cclosure_marshal_VOID__VOID,
+                                           G_TYPE_NONE, 0);
+
   g_type_class_add_private (object_class, sizeof (IdoScaleMenuItemPrivate));
 }
 
@@ -389,6 +413,8 @@ ido_scale_menu_item_button_press_event (GtkWidget      *menuitem,
   gtk_widget_event (scale,
                     ((GdkEvent *)(void*)(event)));
 
+  g_signal_emit (menuitem, signals[SLIDER_GRABBED], 0);
+
   return TRUE;
 }
 
@@ -415,6 +441,8 @@ ido_scale_menu_item_button_release_event (GtkWidget *menuitem,
           gtk_adjustment_set_value (adj, gtk_adjustment_get_upper (adj));
         }
 
+      g_signal_emit (menuitem, signals[SLIDER_RELEASED], 0);
+
       return TRUE;
     }
 
@@ -432,6 +460,8 @@ ido_scale_menu_item_button_release_event (GtkWidget *menuitem,
           gtk_adjustment_set_value (adj, gtk_adjustment_get_lower (adj));
         }
 
+      g_signal_emit (menuitem, signals[SLIDER_RELEASED], 0);
+
       return TRUE;
     }
 
@@ -448,6 +478,8 @@ ido_scale_menu_item_button_release_event (GtkWidget *menuitem,
 
   event->window = tmp;
 
+  g_signal_emit (menuitem, signals[SLIDER_RELEASED], 0);
+
   return TRUE;
 }
 
-- 
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