[gnome-control-center] display-config: Parse privacy screen property and expose it per monitor

[Robert Ancell <rancell src gnome org>]

commit 2f6d086c6f8c00c1b04687bd9db5532ad7f4b773
Author: Marco Trevisan (Treviño) <mail 3v1n0 net>
Date:   Mon Mar 22 06:58:51 2021 +0100

    display-config: Parse privacy screen property and expose it per monitor
    
    Each monitor can have a privacy screen property, so read it and expose
    so that it can be at upper levels.

 panels/display/cc-display-config-dbus.c | 24 ++++++++++++++++++++++++
 panels/display/cc-display-config.c      |  6 ++++++
 panels/display/cc-display-config.h      | 11 +++++++++++
 3 files changed, 41 insertions(+)
---
diff --git a/panels/display/cc-display-config-dbus.c b/panels/display/cc-display-config-dbus.c
index be496a898..bea07e228 100644
--- a/panels/display/cc-display-config-dbus.c
+++ b/panels/display/cc-display-config-dbus.c
@@ -340,6 +340,7 @@ struct _CcDisplayMonitorDBus
   int height_mm;
   gboolean builtin;
   CcDisplayMonitorUnderscanning underscanning;
+  CcDisplayMonitorPrivacy privacy_screen;
   int max_width;
   int max_height;
 
@@ -625,6 +626,14 @@ cc_display_monitor_dbus_get_underscanning (CcDisplayMonitor *pself)
   return self->underscanning == UNDERSCANNING_ENABLED;
 }
 
+static CcDisplayMonitorPrivacy
+cc_display_monitor_dbus_get_privacy (CcDisplayMonitor *pself)
+{
+  CcDisplayMonitorDBus *self = CC_DISPLAY_MONITOR_DBUS (pself);
+
+  return self->privacy_screen;
+}
+
 static void
 cc_display_monitor_dbus_set_underscanning (CcDisplayMonitor *pself,
                                            gboolean underscanning)
@@ -843,6 +852,7 @@ cc_display_monitor_dbus_class_init (CcDisplayMonitorDBusClass *klass)
   parent_class->supports_underscanning = cc_display_monitor_dbus_supports_underscanning;
   parent_class->get_underscanning = cc_display_monitor_dbus_get_underscanning;
   parent_class->set_underscanning = cc_display_monitor_dbus_set_underscanning;
+  parent_class->get_privacy = cc_display_monitor_dbus_get_privacy;
   parent_class->set_mode = cc_display_monitor_dbus_set_mode;
   parent_class->set_compatible_clone_mode = cc_display_monitor_dbus_set_compatible_clone_mode;
   parent_class->set_position = cc_display_monitor_dbus_set_position;
@@ -932,6 +942,20 @@ cc_display_monitor_dbus_new (GVariant *variant,
         {
           g_variant_get (v, "s", &self->display_name);
         }
+      else if (g_str_equal (s, "privacy-screen-state"))
+        {
+          gboolean enabled;
+          gboolean locked;
+          g_variant_get (v, "(bb)", &enabled, &locked);
+
+          if (enabled)
+            self->privacy_screen = CC_DISPLAY_MONITOR_PRIVACY_ENABLED;
+          else
+            self->privacy_screen = CC_DISPLAY_MONITOR_PRIVACY_DISABLED;
+
+          if (locked)
+            self->privacy_screen |= CC_DISPLAY_MONITOR_PRIVACY_LOCKED;
+        }
     }
 
   return self;
diff --git a/panels/display/cc-display-config.c b/panels/display/cc-display-config.c
index 271342cbf..b7532f99a 100644
--- a/panels/display/cc-display-config.c
+++ b/panels/display/cc-display-config.c
@@ -334,6 +334,12 @@ cc_display_monitor_set_underscanning (CcDisplayMonitor *self,
   return CC_DISPLAY_MONITOR_GET_CLASS (self)->set_underscanning (self, underscanning);
 }
 
+CcDisplayMonitorPrivacy
+cc_display_monitor_get_privacy (CcDisplayMonitor *self)
+{
+  return CC_DISPLAY_MONITOR_GET_CLASS (self)->get_privacy (self);
+}
+
 void
 cc_display_monitor_set_mode (CcDisplayMonitor *self, CcDisplayMode *m)
 {
diff --git a/panels/display/cc-display-config.h b/panels/display/cc-display-config.h
index 852efa109..1241adcd5 100644
--- a/panels/display/cc-display-config.h
+++ b/panels/display/cc-display-config.h
@@ -68,6 +68,14 @@ typedef enum _CcDisplayRotation
   CC_DISPLAY_ROTATION_270_FLIPPED,
 } CcDisplayRotation;
 
+typedef enum _CcDisplayMonitorPrivacy
+{
+  CC_DISPLAY_MONITOR_PRIVACY_UNSUPPORTED = 0,
+  CC_DISPLAY_MONITOR_PRIVACY_DISABLED = 1 << 0,
+  CC_DISPLAY_MONITOR_PRIVACY_ENABLED = 1 << 1,
+  CC_DISPLAY_MONITOR_PRIVACY_LOCKED = 1 << 2,
+} CcDisplayMonitorPrivacy;
+
 
 #define CC_TYPE_DISPLAY_MODE (cc_display_mode_get_type ())
 G_DECLARE_DERIVABLE_TYPE (CcDisplayMode, cc_display_mode,
@@ -123,6 +131,7 @@ struct _CcDisplayMonitorClass
   gboolean          (*get_underscanning)      (CcDisplayMonitor  *self);
   void              (*set_underscanning)      (CcDisplayMonitor  *self,
                                                gboolean           u);
+  CcDisplayMonitorPrivacy (*get_privacy)      (CcDisplayMonitor  *self);
   CcDisplayMode*    (*get_mode)               (CcDisplayMonitor  *self);
   CcDisplayMode*    (*get_preferred_mode)     (CcDisplayMonitor  *self);
   GList*            (*get_modes)              (CcDisplayMonitor  *self);
@@ -218,6 +227,8 @@ gboolean          cc_display_monitor_get_underscanning      (CcDisplayMonitor  *
 void              cc_display_monitor_set_underscanning      (CcDisplayMonitor  *monitor,
                                                              gboolean           underscanning);
 
+CcDisplayMonitorPrivacy cc_display_monitor_get_privacy      (CcDisplayMonitor *self);
+
 CcDisplayMode*    cc_display_monitor_get_mode               (CcDisplayMonitor  *monitor);
 void              cc_display_monitor_get_geometry           (CcDisplayMonitor  *monitor,
                                                              int               *x,