[Xfce4-commits] [apps/xfdashboard] 01/03: Add or remove CSS class "primary-monitor" to XfdashboardStageInterface depending on the primary state of associated monitor. With this CSS class the stage interface of the primary monitor could be themed different as the others non-primary or secondary ones.

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nomad pushed a commit to branch master
in repository apps/xfdashboard.

commit 984a111ad6576ff285cadfd330abd0125107e0db
Author: Stephan Haller <nomad at froevel.de>
Date:   Wed Dec 21 18:00:55 2016 +0100

    Add or remove CSS class "primary-monitor" to XfdashboardStageInterface depending on the primary state of associated monitor. With this CSS class the stage interface of the primary monitor could be themed different as the others non-primary or secondary ones.
---
 libxfdashboard/stage-interface.c | 44 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/libxfdashboard/stage-interface.c b/libxfdashboard/stage-interface.c
index f53706f..4ffcf21 100644
--- a/libxfdashboard/stage-interface.c
+++ b/libxfdashboard/stage-interface.c
@@ -32,6 +32,7 @@
 #include <libxfdashboard/actor.h>
 #include <libxfdashboard/enums.h>
 #include <libxfdashboard/stage.h>
+#include <libxfdashboard/stylable.h>
 #include <libxfdashboard/compat.h>
 
 
@@ -57,6 +58,7 @@ struct _XfdashboardStageInterfacePrivate
 	GBinding								*bindingBackgroundColor;
 
 	guint									geometryChangedID;
+	guint									primaryChangedID;
 };
 
 /* Properties */
@@ -99,6 +101,28 @@ static void _xfdashboard_stage_interface_on_geometry_changed(XfdashboardStageInt
 				xfdashboard_window_tracker_monitor_get_number(priv->monitor));
 }
 
+/* Monitor changed primary state */
+static void _xfdashboard_stage_interface_on_primary_changed(XfdashboardStageInterface *self, gpointer inUserData)
+{
+	XfdashboardStageInterfacePrivate	*priv;
+	gboolean							isPrimary;
+
+	g_return_if_fail(XFDASHBOARD_IS_STAGE_INTERFACE(self));
+
+	priv=self->priv;
+
+	/* Get new primary state of monitor */
+	isPrimary=xfdashboard_window_tracker_monitor_is_primary(priv->monitor);
+
+	/* Depending on primary state set CSS class */
+	if(isPrimary) xfdashboard_stylable_add_class(XFDASHBOARD_STYLABLE(self), "primary-monitor");
+		else xfdashboard_stylable_remove_class(XFDASHBOARD_STYLABLE(self), "primary-monitor");
+
+	g_debug("Stage interface changed primary state to %s because of monitor %d",
+				xfdashboard_window_tracker_monitor_is_primary(priv->monitor) ? "primary" : "non-primary",
+				xfdashboard_window_tracker_monitor_get_number(priv->monitor));
+}
+
 /* IMPLEMENTATION: ClutterActor */
 
 /* Actor was (re)parented */
@@ -231,6 +255,12 @@ static void _xfdashboard_stage_interface_dispose(GObject *inObject)
 			priv->geometryChangedID=0;
 		}
 
+		if(priv->primaryChangedID)
+		{
+			g_signal_handler_disconnect(priv->monitor, priv->primaryChangedID);
+			priv->primaryChangedID=0;
+		}
+
 		g_object_unref(priv->monitor);
 		priv->monitor=NULL;
 	}
@@ -365,6 +395,7 @@ static void xfdashboard_stage_interface_init(XfdashboardStageInterface *self)
 	/* Set default values */
 	priv->monitor=NULL;
 	priv->geometryChangedID=0;
+	priv->primaryChangedID=0;
 	priv->backgroundType=XFDASHBOARD_STAGE_BACKGROUND_IMAGE_TYPE_NONE;
 	priv->backgroundColor=NULL;
 	priv->bindingBackgroundImageType=NULL;
@@ -411,6 +442,12 @@ void xfdashboard_stage_interface_set_monitor(XfdashboardStageInterface *self, Xf
 				priv->geometryChangedID=0;
 			}
 
+			if(priv->primaryChangedID)
+			{
+				g_signal_handler_disconnect(priv->monitor, priv->primaryChangedID);
+				priv->primaryChangedID=0;
+			}
+
 			g_object_unref(priv->monitor);
 			priv->monitor=NULL;
 		}
@@ -422,10 +459,17 @@ void xfdashboard_stage_interface_set_monitor(XfdashboardStageInterface *self, Xf
 															"geometry-changed",
 															G_CALLBACK(_xfdashboard_stage_interface_on_geometry_changed),
 															self);
+		priv->primaryChangedID=g_signal_connect_swapped(priv->monitor,
+															"primary-changed",
+															G_CALLBACK(_xfdashboard_stage_interface_on_primary_changed),
+															self);
 
 		/* Resize actor to new monitor */
 		_xfdashboard_stage_interface_on_geometry_changed(self, priv->monitor);
 
+		/* Update actor from primary state */
+		_xfdashboard_stage_interface_on_primary_changed(self, priv->monitor);
+
 		/* Notify about property change */
 		g_object_notify_by_pspec(G_OBJECT(self), XfdashboardStageInterfaceProperties[PROP_MONITOR]);
 	}

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