[gtk/issue-1961: 7/10] Add private getter for a monitor connector

[Emmanuele Bassi <ebassi src gnome org>]

commit af778ec7d03d640b895359e75e56fb28c7e31654
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Thu Jun 20 14:52:41 2019 +0100

    Add private getter for a monitor connector
    
    The migration from GdkScreen's monitor API to GdkMonitor left out a way
    to get the connector's name of a monitor. While there's no real
    guarantee that the connector's name is stable, some system components
    used it to uniquely identify a monitor until the next plug in/out event.
    
    Since GTK 3 is API stable, we can only add a private setter and getter
    functions pair, without a property.

 gdk/gdkmonitor.c        | 27 +++++++++++++++++++++++++++
 gdk/gdkmonitorprivate.h |  4 ++++
 2 files changed, 31 insertions(+)
---
diff --git a/gdk/gdkmonitor.c b/gdk/gdkmonitor.c
index a768b591d0..9777cfcf85 100644
--- a/gdk/gdkmonitor.c
+++ b/gdk/gdkmonitor.c
@@ -155,6 +155,7 @@ gdk_monitor_finalize (GObject *object)
 {
   GdkMonitor *monitor = GDK_MONITOR (object);
 
+  g_free (monitor->connector);
   g_free (monitor->manufacturer);
   g_free (monitor->model);
 
@@ -354,6 +355,22 @@ gdk_monitor_get_height_mm (GdkMonitor *monitor)
   return monitor->height_mm;
 }
 
+/*< private >
+ * gdk_monitor_get_connector:
+ * @monitor: a #GdkMonitor
+ *
+ * Gets the name of the monitor's connector, if available.
+ *
+ * Returns: (transfer none) (nullable): the name of the connector
+ */
+const char *
+gdk_monitor_get_connector (GdkMonitor *monitor)
+{
+  g_return_val_if_fail (GDK_IS_MONITOR (monitor), NULL);
+
+  return monitor->connector;
+}
+
 /**
  * gdk_monitor_get_manufacturer:
  * @monitor: a #GdkMonitor
@@ -493,6 +510,16 @@ gdk_monitor_set_model (GdkMonitor *monitor,
   g_object_notify (G_OBJECT (monitor), "model");
 }
 
+void
+gdk_monitor_set_connector (GdkMonitor *monitor,
+                           const char *connector)
+{
+  g_free (monitor->connector);
+  monitor->connector = g_strdup (connector);
+
+  /* g_object_notify (G_OBJECT (monitor), "connector"); */
+}
+
 void
 gdk_monitor_set_position (GdkMonitor *monitor,
                           int         x,
diff --git a/gdk/gdkmonitorprivate.h b/gdk/gdkmonitorprivate.h
index c76b59ce90..91219b2262 100644
--- a/gdk/gdkmonitorprivate.h
+++ b/gdk/gdkmonitorprivate.h
@@ -36,6 +36,7 @@ struct _GdkMonitor {
   GdkDisplay *display;
   char *manufacturer;
   char *model;
+  char *connector;
   GdkRectangle geometry;
   int width_mm;
   int height_mm;
@@ -57,6 +58,9 @@ void            gdk_monitor_set_manufacturer    (GdkMonitor *monitor,
                                                  const char *manufacturer);
 void            gdk_monitor_set_model           (GdkMonitor *monitor,
                                                  const char *model);
+void            gdk_monitor_set_connector       (GdkMonitor *monitor,
+                                                 const char *connector);
+const char *    gdk_monitor_get_connector       (GdkMonitor *monitor);
 void            gdk_monitor_set_position        (GdkMonitor *monitor,
                                                  int         x,
                                                  int         y);