From: William Hua <william.hua@canonical.com>
Date: Wed, 19 Mar 2014 14:08:29 +1300
Last-Update: 2020-04-30
Subject: Broadcast when panel properties are registered/updated

Augment the panel service D-Bus interface so that external consumers
can detect when the panel service properties are changed.
Needed for Unity (indicator-keyboard)

Bug-Ubuntu: https://bugs.launchpad.net/bugs/1290881
---
 src/ibuspanelservice.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/src/ibuspanelservice.c b/src/ibuspanelservice.c
index 984cc89..a8e9298 100644
--- a/src/ibuspanelservice.c
+++ b/src/ibuspanelservice.c
@@ -160,8 +160,24 @@ static void      ibus_panel_service_panel_extension_received
 
 G_DEFINE_TYPE (IBusPanelService, ibus_panel_service, IBUS_TYPE_SERVICE)
 
+/* Ubuntu-specific */
+#define UNITY_INTERFACE_PANEL "com.canonical.IBus.Panel.Private"
+
 static const gchar introspection_xml[] =
     "<node>"
+    /* Ubuntu-specific */
+    "  <interface name='" UNITY_INTERFACE_PANEL "'>"
+    "    <method name='ActivateProperty'>"
+    "      <arg direction='in' type='s' name='name' />"
+    "      <arg direction='in' type='u' name='state' />"
+    "    </method>"
+    "    <signal name='PropertiesRegistered'>"
+    "      <arg type='v' name='properties' />"
+    "    </signal>"
+    "    <signal name='PropertyUpdated'>"
+    "      <arg type='v' name='property' />"
+    "    </signal>"
+    "  </interface>"
     "  <interface name='org.freedesktop.IBus.Panel'>"
     /* Methods */
     "    <method name='UpdatePreeditText'>"
@@ -1101,6 +1117,20 @@ ibus_panel_service_service_method_call (IBusService           *service,
 {
     IBusPanelService *panel = IBUS_PANEL_SERVICE (service);
 
+    /* Ubuntu-specific */
+    if (g_strcmp0 (interface_name, UNITY_INTERFACE_PANEL) == 0) {
+        if (g_strcmp0 (method_name, "ActivateProperty") == 0) {
+            const gchar *name;
+            guint state;
+
+            g_variant_get (parameters, "(&su)", &name, &state);
+
+            ibus_panel_service_property_activate (panel, name, state);
+            g_dbus_method_invocation_return_value (invocation, NULL);
+            return;
+        }
+    }
+
     if (g_strcmp0 (interface_name, IBUS_INTERFACE_PANEL) != 0) {
         IBUS_SERVICE_CLASS (ibus_panel_service_parent_class)->
                 service_method_call (service,
@@ -1192,6 +1222,14 @@ ibus_panel_service_service_method_call (IBusService           *service,
         g_signal_emit (panel, panel_signals[REGISTER_PROPERTIES], 0, prop_list);
         _g_object_unref_if_floating (prop_list);
         g_dbus_method_invocation_return_value (invocation, NULL);
+
+        /* Ubuntu-specific */
+        ibus_service_emit_signal ((IBusService *) panel,
+                                  NULL,
+                                  UNITY_INTERFACE_PANEL,
+                                  "PropertiesRegistered",
+                                  parameters,
+                                  NULL);
         return;
     }
 
@@ -1203,6 +1241,14 @@ ibus_panel_service_service_method_call (IBusService           *service,
         g_signal_emit (panel, panel_signals[UPDATE_PROPERTY], 0, property);
         _g_object_unref_if_floating (property);
         g_dbus_method_invocation_return_value (invocation, NULL);
+
+        /* Ubuntu-specific */
+        ibus_service_emit_signal ((IBusService *) panel,
+                                  NULL,
+                                  UNITY_INTERFACE_PANEL,
+                                  "PropertyUpdated",
+                                  parameters,
+                                  NULL);
         return;
     }