From 4c51215f6e2ba302f4d9f1a78650d9209eca7f35 Mon Sep 17 00:00:00 2001
From: Stefano Karapetsas <stefano@karapetsas.com>
Date: Wed, 25 Jun 2014 13:46:19 +0200
Subject: Add GTK3 support

---
 configure.ac      | 27 ++++++++++++++++++++++++---
 src/applet-main.c | 34 +++++++++++++++++++++++++++++++---
 2 files changed, 55 insertions(+), 6 deletions(-)

diff --git a/configure.ac b/configure.ac
index 51f489c..377cdf7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -25,17 +25,37 @@ m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])
 # Dependencies 
 ###########################
 
-GTK_REQUIRED_VERSION=2.12
+AC_MSG_CHECKING([which gtk+ version to compile against])
+AC_ARG_WITH([gtk],
+  [AS_HELP_STRING([--with-gtk=2.0|3.0],[which gtk+ version to compile against (default: 2.0)])],
+  [case "$with_gtk" in
+     2.0|3.0) ;;
+     *) AC_MSG_ERROR([invalid gtk version specified]) ;;
+   esac],
+  [with_gtk=2.0])
+AC_MSG_RESULT([$with_gtk])
+
+case "$with_gtk" in
+  2.0) GTK_API_VERSION=2.0
+       GTK_REQUIRED=2.24.0
+       INDICATOR_API_VERSION=
+       ;;
+  3.0) GTK_API_VERSION=3.0
+       GTK_REQUIRED=3.0.0
+       INDICATOR_API_VERSION=3
+       ;;
+esac
+
 INDICATOR_REQUIRED_VERSION=0.3.22
 
-PKG_CHECK_MODULES(APPLET, gtk+-2.0 >= $GTK_REQUIRED_VERSION
+PKG_CHECK_MODULES(APPLET, gtk+-$GTK_API_VERSION >= $GTK_REQUIRED_VERSION
                           x11
                           libmatepanelapplet-4.0
                           )
 AC_SUBST(APPLET_CFLAGS)
 AC_SUBST(APPLET_LIBS)
 
-PKG_CHECK_MODULES([INDICATOR4], [indicator-0.4 >= $INDICATOR_REQUIRED_VERSION],
+PKG_CHECK_MODULES([INDICATOR4], [indicator$INDICATOR_API_VERSION-0.4 >= $INDICATOR_REQUIRED_VERSION],
    [
      AC_DEFINE([HAVE_INDICATOR4], [1], [Use Indicator 0.4])
      INDICATORDIR=`$PKG_CONFIG --variable=indicatordir indicator-0.4`
@@ -151,4 +171,5 @@ AC_MSG_NOTICE([
 Indicator Applet Configuration:
 
 	Prefix:                 $prefix
+	GTK+ version:           ${GTK_API_VERSION}
 ])
diff --git a/src/applet-main.c b/src/applet-main.c
index 995552c..f1792b8 100644
--- a/src/applet-main.c
+++ b/src/applet-main.c
@@ -26,6 +26,7 @@ with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <glib/gi18n.h>
 #include <mate-panel-applet.h>
 #include <gdk/gdkkeysyms.h>
+#include <gtk/gtk.h>
 
 #include "libindicator/indicator-object.h"
 #include "tomboykeybinder.h"
@@ -49,11 +50,13 @@ static MatePanelAppletOrient orient;
 
 static gboolean     applet_fill_cb (MatePanelApplet * applet, const gchar * iid, gpointer data);
 
+#if !GTK_CHECK_VERSION(3, 0, 0)
 static void cw_panel_background_changed (MatePanelApplet               *applet,
                                          MatePanelAppletBackgroundType  type,
                         				         GdkColor                  *colour,
                         				         GdkPixmap                 *pixmap,
                                          GtkWidget                 *menubar);
+#endif
 static void update_accessible_desc (IndicatorObjectEntry * entry, GtkWidget * menuitem);
 
 /*************
@@ -580,13 +583,28 @@ menubar_press (GtkWidget * widget,
 }
 
 static gboolean
+#if GTK_CHECK_VERSION(3, 0, 0)
+menubar_on_draw (GtkWidget * widget,
+                 cairo_t * cr,
+                 GtkWidget * menubar)
+#else
 menubar_on_expose (GtkWidget * widget,
                     GdkEventExpose *event G_GNUC_UNUSED,
                     GtkWidget * menubar)
+#endif
 {
 	if (gtk_widget_has_focus(menubar))
-		gtk_paint_focus(gtk_widget_get_style(widget), gtk_widget_get_window(widget), gtk_widget_get_state(menubar),
-		                NULL, widget, "menubar-applet", 0, 0, -1, -1);
+		gtk_paint_focus(gtk_widget_get_style(widget),
+#if GTK_CHECK_VERSION(3, 0, 0)
+		                cr,
+#else
+		                gtk_widget_get_window(widget),
+#endif
+		                gtk_widget_get_state(menubar),
+#if !GTK_CHECK_VERSION(3, 0, 0)
+		                NULL,
+#endif
+		                widget, "menubar-applet", 0, 0, -1, -1);
 
 	return FALSE;
 }
@@ -864,7 +882,11 @@ applet_fill_cb (MatePanelApplet * applet, const gchar * iid G_GNUC_UNUSED,
 	gtk_widget_set_can_focus (menubar, TRUE);
 	gtk_widget_set_name(GTK_WIDGET (menubar), "fast-user-switch-menubar");
 	g_signal_connect(menubar, "button-press-event", G_CALLBACK(menubar_press), NULL);
+#if GTK_CHECK_VERSION(3, 0, 0)
+	g_signal_connect_after(menubar, "draw", G_CALLBACK(menubar_on_draw), menubar);
+#else
 	g_signal_connect_after(menubar, "expose-event", G_CALLBACK(menubar_on_expose), menubar);
+#endif
 	g_signal_connect(applet, "change-orient", 
 			G_CALLBACK(matepanelapplet_reorient_cb), menubar);
 	gtk_container_set_border_width(GTK_CONTAINER(menubar), 0);
@@ -905,6 +927,9 @@ applet_fill_cb (MatePanelApplet * applet, const gchar * iid G_GNUC_UNUSED,
 	if (indicators_loaded == 0) {
 		/* A label to allow for click through */
 		GtkWidget * item = gtk_label_new(_("No Indicators"));
+#if GTK_CHECK_VERSION(3, 0, 0)
+		mate_panel_applet_set_background_widget(applet, item);
+#endif
 		gtk_container_add(GTK_CONTAINER(applet), item);
 		gtk_widget_show(item);
 	} else {
@@ -913,9 +938,11 @@ applet_fill_cb (MatePanelApplet * applet, const gchar * iid G_GNUC_UNUSED,
 		gtk_widget_show(menubar);
 	}
 
+#if !GTK_CHECK_VERSION(3, 0, 0)
 	/* Background of applet */
 	g_signal_connect(applet, "change-background",
 			  G_CALLBACK(cw_panel_background_changed), menubar);
+#endif
 
 	gtk_widget_show(GTK_WIDGET(applet));
 
@@ -923,6 +950,7 @@ applet_fill_cb (MatePanelApplet * applet, const gchar * iid G_GNUC_UNUSED,
 
 }
 
+#if !GTK_CHECK_VERSION(3, 0, 0)
 static void
 cw_panel_background_changed (MatePanelApplet               *applet,
                              MatePanelAppletBackgroundType  type,
@@ -961,4 +989,4 @@ cw_panel_background_changed (MatePanelApplet               *applet,
 			break;
   }
 }
-
+#endif
-- 
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