Separate --listen-focus/--listen-keystroke option of eekboard-system-client.

README

@@ -49,12 +49,16 @@ NOTE: eekboard-system-client is now being heavily developed and it may
 behave wrongly.  Make sure to close windows where you are doing any
 important work, before running eekboard.
 
-  $ ./src/eekboard-system-client --xklavier --accessibility --fakekey
-
-Where --xklavier is to monitor system keyboard layout change,
---accessibility is to track focus/key events via AT-SPI, and --fakekey
-generates X key events when eekboard-server signals virtual
-key-press/key-release events.
+  $ ./src/eekboard-system-client \
+      --listen-keyboard \
+      --listen-focus \
+      --listen-keystroke \
+      --generate-key-event
+
+Where --listen-keyboard is to monitor system keyboard state/config
+change, --listen-focus is to track focus change, --listen-keystroke is
+to track keystroke events, and --generate-key-event is to generate X
+key events on virtual key-press/key-release events.
 
 * Documentation
 

src/server.c

@@ -78,6 +78,9 @@ struct _EekboardServer {
     GtkWidget *window;
     GtkWidget *widget;
     EekKeyboard *keyboard;
+
+    gulong key_pressed_handler;
+    gulong key_released_handler;
 };
 
 struct _EekboardServerClass {
@@ -235,6 +238,8 @@ eekboard_server_init (EekboardServer *server)
     server->keyboard = NULL;
     server->widget = NULL;
     server->window = NULL;
+    server->key_pressed_handler = 0;
+    server->key_released_handler = 0;
 }
 
 static void
@@ -277,6 +282,19 @@ on_key_released (EekKeyboard *keyboard,
     g_assert_no_error (error);
 }
 
+static void
+disconnect_keyboard_signals (EekboardServer *server)
+{
+    if (g_signal_handler_is_connected (server->keyboard,
+                                       server->key_pressed_handler))
+        g_signal_handler_disconnect (server->keyboard,
+                                     server->key_pressed_handler);
+    if (g_signal_handler_is_connected (server->keyboard,
+                                       server->key_released_handler))
+        g_signal_handler_disconnect (server->keyboard,
+                                     server->key_released_handler);
+}
+
 static void
 handle_method_call (GDBusConnection       *connection,
                     const gchar           *sender,
@@ -311,12 +329,15 @@ handle_method_call (GDBusConnection       *connection,
         }
 
         server->keyboard = eek_keyboard_new (layout, CSW, CSH);
-        g_signal_connect (server->keyboard, "key-pressed",
-                          G_CALLBACK(on_key_pressed),
-                          server);
-        g_signal_connect (server->keyboard, "key-released",
-                          G_CALLBACK(on_key_released),
-                          server);
+        disconnect_keyboard_signals (server);
+        server->key_pressed_handler =
+            g_signal_connect (server->keyboard, "key-pressed",
+                              G_CALLBACK(on_key_pressed),
+                              server);
+        server->key_released_handler =
+            g_signal_connect (server->keyboard, "key-released",
+                              G_CALLBACK(on_key_released),
+                              server);
         eek_keyboard_set_modifier_behavior (server->keyboard,
                                             EEK_MODIFIER_BEHAVIOR_LATCH);
         

src/system-client-main.c

@@ -4,17 +4,20 @@
 #include <gconf/gconf-client.h>
 #include "system-client.h"
 
-gboolean opt_xkl = FALSE;
-gboolean opt_cspi = FALSE;
+gboolean opt_keyboard = FALSE;
+gboolean opt_focus = FALSE;
+gboolean opt_keystroke = FALSE;
 gboolean opt_fakekey = FALSE;
 
 static const GOptionEntry options[] = {
-    {"xklavier", 'x', 0, G_OPTION_ARG_NONE, &opt_xkl,
-     "Listen xklavier events"},
-    {"accessibility", 'a', 0, G_OPTION_ARG_NONE, &opt_cspi,
-     "Listen accessibility events"},
-    {"fakekey", 'k', 0, G_OPTION_ARG_NONE, &opt_fakekey,
-     "Generate X key events via libfakekey"},
+    {"listen-keyboard", 'k', 0, G_OPTION_ARG_NONE, &opt_keyboard,
+     "Listen keyboard change events with libxklavier"},
+    {"listen-focus", 'f', 0, G_OPTION_ARG_NONE, &opt_focus,
+     "Listen focus change events with AT-SPI"},
+    {"listen-keystroke", 's', 0, G_OPTION_ARG_NONE, &opt_keystroke,
+     "Listen keystroke events with AT-SPI"},
+    {"generate-key-event", 'g', 0, G_OPTION_ARG_NONE, &opt_fakekey,
+     "Generate X key events with libfakekey"},
     {NULL}
 };
 
@@ -47,7 +50,7 @@ main (int argc, char **argv)
 
     gconfc = gconf_client_get_default ();
     error = NULL;
-    if (opt_cspi) {
+    if (opt_focus || opt_keystroke) {
         if (gconf_client_get_bool (gconfc,
                                    "/desktop/gnome/interface/accessibility",
                                    &error) ||
@@ -59,8 +62,15 @@ main (int argc, char **argv)
                 exit (1);
             }
 
-            if (!eekboard_system_client_enable_cspi (client)) {
-                g_printerr ("Can't register accessibility event listeners\n");
+            if (opt_focus &&
+                !eekboard_system_client_enable_cspi_focus (client)) {
+                g_printerr ("Can't register focus change event listeners\n");
+                exit (1);
+            }
+
+            if (opt_keystroke &&
+                !eekboard_system_client_enable_cspi_keystroke (client)) {
+                g_printerr ("Can't register keystroke event listeners\n");
                 exit (1);
             }
         } else {
@@ -68,7 +78,7 @@ main (int argc, char **argv)
             exit (1);
         }
     }
-    if (opt_xkl &&
+    if (opt_keyboard &&
         !eekboard_system_client_enable_xkl (client)) {
         g_printerr ("Can't register xklavier event listeners\n"); 
         exit (1);

src/system-client.c

@@ -122,7 +122,8 @@ eekboard_system_client_dispose (GObject *object)
     EekboardSystemClient *client = EEKBOARD_SYSTEM_CLIENT(object);
 
     eekboard_system_client_disable_xkl (client);
-    eekboard_system_client_disable_cspi (client);
+    eekboard_system_client_disable_cspi_focus (client);
+    eekboard_system_client_disable_cspi_keystroke (client);
     eekboard_system_client_disable_fakekey (client);
 
     if (client->proxy) {
@@ -226,7 +227,7 @@ eekboard_system_client_disable_xkl (EekboardSystemClient *client)
 }
 
 gboolean
-eekboard_system_client_enable_cspi (EekboardSystemClient *client)
+eekboard_system_client_enable_cspi_focus (EekboardSystemClient *client)
 {
     client->focus_listener = SPI_createAccessibleEventListener
         ((AccessibleEventListenerCB)focus_listener_cb,
@@ -240,6 +241,22 @@ eekboard_system_client_enable_cspi (EekboardSystemClient *client)
                                           "focus:"))
         return FALSE;
 
+    return TRUE;
+}
+
+void
+eekboard_system_client_disable_cspi_focus (EekboardSystemClient *client)
+{
+    if (client->focus_listener) {
+        SPI_deregisterGlobalEventListenerAll (client->focus_listener);
+        AccessibleEventListener_unref (client->focus_listener);
+        client->focus_listener = NULL;
+    }
+}
+
+gboolean
+eekboard_system_client_enable_cspi_keystroke (EekboardSystemClient *client)
+{
     client->keystroke_listener =
         SPI_createAccessibleKeystrokeListener (keystroke_listener_cb,
                                                client);
@@ -256,13 +273,8 @@ eekboard_system_client_enable_cspi (EekboardSystemClient *client)
 }
 
 void
-eekboard_system_client_disable_cspi (EekboardSystemClient *client)
+eekboard_system_client_disable_cspi_keystroke (EekboardSystemClient *client)
 {
-    if (client->focus_listener) {
-        SPI_deregisterGlobalEventListenerAll (client->focus_listener);
-        AccessibleEventListener_unref (client->focus_listener);
-        client->focus_listener = NULL;
-    }
     if (client->keystroke_listener) {
         SPI_deregisterAccessibleKeystrokeListener (client->keystroke_listener,
                                                    0);

src/system-client.h

@@ -39,9 +39,14 @@ gboolean               eekboard_system_client_enable_xkl
 void                   eekboard_system_client_disable_xkl
                        (EekboardSystemClient *client);
 
-gboolean               eekboard_system_client_enable_cspi
+gboolean               eekboard_system_client_enable_cspi_focus
                        (EekboardSystemClient *client);
-void                   eekboard_system_client_disable_cspi
+void                   eekboard_system_client_disable_cspi_focus
+                       (EekboardSystemClient *client);
+
+gboolean               eekboard_system_client_enable_cspi_keystroke
+                       (EekboardSystemClient *client);
+void                   eekboard_system_client_disable_cspi_keystroke
                        (EekboardSystemClient *client);
 
 gboolean               eekboard_system_client_enable_fakekey