Merge lp:~3v1n0/unity-2d/scroll-event-support into lp:unity-2d/3.0

[Marco Trevisan (Treviño)]

Added scroll-event support for unity-2d-panel, using the same code I wrote for indicator-applet (which I forgot to port to unity-2d too at the time).

Scrolling over the indicator-sound (and other 3rd party indicators which support the scrolling signal) will now work.

[Aurélien Gâteau (agateau)]

Looks good, thanks for the patch!

review: Approve

=== modified file 'panel/applets/indicator/indicator.c'
--- panel/applets/indicator/indicator.c	2011-03-30 14:50:35 +0000
+++ panel/applets/indicator/indicator.c	2011-07-01 04:16:29 +0000
@@ -152,6 +152,20 @@
 	return;
 }
 
+static gboolean
+entry_scrolled (GtkWidget *menuitem, GdkEventScroll *event, gpointer data)
+{
+	IndicatorObject *io = g_object_get_data (G_OBJECT (menuitem), MENU_DATA_INDICATOR_OBJECT);
+	IndicatorObjectEntry *entry = g_object_get_data (G_OBJECT (menuitem), MENU_DATA_INDICATOR_ENTRY);
+
+	g_return_val_if_fail(INDICATOR_IS_OBJECT(io), FALSE);
+
+	g_signal_emit_by_name (io, "scroll", 1, event->direction);
+	g_signal_emit_by_name (io, "scroll-entry", entry, 1, event->direction);
+
+	return FALSE;
+}
+
 static void
 entry_added (IndicatorObject * io, IndicatorObjectEntry * entry, GtkWidget * menubar)
 {
@@ -233,6 +247,7 @@
 
 	g_object_set_data(G_OBJECT(menuitem), MENU_DATA_INDICATOR_ENTRY,  entry);
 	g_object_set_data(G_OBJECT(menuitem), MENU_DATA_INDICATOR_OBJECT, io);
+	g_signal_connect(G_OBJECT (menuitem), "scroll-event", G_CALLBACK(entry_scrolled), NULL);
 
 	return;
 }