Make input context have multiple keyboards.

bindings/python/eekboard/context.py

@@ -51,8 +51,14 @@ class Context(gobject.GObject):
     def get_giobject(self):
         return self.__giobject
 
-    def set_keyboard(self, keyboard):
+    def add_keyboard(self, keyboard):
-        self.__giobject.set_keyboard(keyboard, None)
+        return self.__giobject.add_keyboard(keyboard, None)
+
+    def remove_keyboard(self, keyboard_id):
+        return self.__giobject.remove_keyboard(keyboard_id, None)
+        
+    def set_keyboard(self, keyboard_id):
+        self.__giobject.set_keyboard(keyboard_id, None)
 
     def show_keyboard(self):
         self.__giobject.show_keyboard(None)

eekboard/eekboard-context.c

@@ -56,6 +56,7 @@ G_DEFINE_TYPE (EekboardContext, eekboard_context, G_TYPE_DBUS_PROXY);
 struct _EekboardContextPrivate
 {
     EekKeyboard *keyboard;
+    GHashTable *keyboard_hash;
     gboolean keyboard_visible;
     gboolean enabled;
 };
@@ -173,6 +174,11 @@ eekboard_context_dispose (GObject *self)
         g_object_unref (priv->keyboard);
         priv->keyboard = NULL;
     }
+
+    if (priv->keyboard_hash) {
+        g_hash_table_destroy (priv->keyboard_hash);
+        priv->keyboard_hash = NULL;
+    }
 }
 
 static void
@@ -293,6 +299,11 @@ eekboard_context_init (EekboardContext *self)
     priv->keyboard = NULL;
     priv->keyboard_visible = FALSE;
     priv->enabled = FALSE;
+    priv->keyboard_hash =
+        g_hash_table_new_full (g_direct_hash,
+                               g_direct_equal,
+                               NULL,
+                               (GDestroyNotify)g_object_unref);
 }
 
 /**
@@ -347,39 +358,127 @@ context_async_ready_callback (GObject      *source_object,
 }
 
 /**
- * eekboard_context_set_keyboard:
+ * eekboard_context_add_keyboard:
  * @context: an #EekboardContext
  * @keyboard: an #EekKeyboard
  * @cancellable: a #GCancellable
  *
- * Set the keyboard description of @context to @keyboard.
+ * Register @keyboard in @context.
  */
-void
+guint
-eekboard_context_set_keyboard (EekboardContext *context,
+eekboard_context_add_keyboard (EekboardContext *context,
                                EekKeyboard     *keyboard,
                                GCancellable    *cancellable)
 {
     EekboardContextPrivate *priv;
-    GVariant *variant;
+    GVariant *variant, *result;
+    GError *error;
+
+    g_return_val_if_fail (EEKBOARD_IS_CONTEXT(context), 0);
+    g_return_val_if_fail (EEK_IS_KEYBOARD(keyboard), 0);
+
+    priv = EEKBOARD_CONTEXT_GET_PRIVATE (context);
+
+    variant = eek_serializable_serialize (EEK_SERIALIZABLE(keyboard));
+
+    error = NULL;
+    result = g_dbus_proxy_call_sync (G_DBUS_PROXY(context),
+                                     "AddKeyboard",
+                                     g_variant_new ("(v)", variant),
+                                     G_DBUS_CALL_FLAGS_NONE,
+                                     -1,
+                                     cancellable,
+                                     &error);
+    g_variant_unref (variant);
+
+    if (result) {
+        guint keyboard_id;
+
+        g_variant_get (result, "(u)", &keyboard_id);
+        g_variant_unref (result);
+
+        if (keyboard_id != 0) {
+            g_hash_table_insert (priv->keyboard_hash,
+                                 GUINT_TO_POINTER(keyboard_id),
+                                 g_object_ref (keyboard));
+        }
+        return keyboard_id;
+    }
+    return 0;
+}
+
+/**
+ * eekboard_context_remove_keyboard:
+ * @context: an #EekboardContext
+ * @keyboard_id: keyboard ID
+ * @cancellable: a #GCancellable
+ *
+ * Unregister the keyboard with @keyboard_id in @context.
+ */
+void
+eekboard_context_remove_keyboard (EekboardContext *context,
+                                  guint            keyboard_id,
+                                  GCancellable    *cancellable)
+{
+    EekboardContextPrivate *priv;
+    EekKeyboard *keyboard;
 
     g_return_if_fail (EEKBOARD_IS_CONTEXT(context));
-    g_return_if_fail (EEK_IS_KEYBOARD(keyboard));
 
-    priv = EEKBOARD_CONTEXT_GET_PRIVATE(context);
+    priv = EEKBOARD_CONTEXT_GET_PRIVATE (context);
-    if (priv->keyboard)
+
-        g_object_unref (priv->keyboard);
+    keyboard = g_hash_table_lookup (priv->keyboard_hash,
-    priv->keyboard = g_object_ref (keyboard);
+                                    GUINT_TO_POINTER(keyboard_id));
+    if (keyboard == priv->keyboard)
+        priv->keyboard = NULL;
+
+    g_hash_table_remove (priv->keyboard_hash, GUINT_TO_POINTER(keyboard_id));
 
-    variant = eek_serializable_serialize (EEK_SERIALIZABLE(priv->keyboard));
     g_dbus_proxy_call (G_DBUS_PROXY(context),
-                       "SetKeyboard",
+                       "RemoveKeyboard",
-                       g_variant_new ("(v)", variant),
+                       g_variant_new ("(u)", keyboard_id),
+                       G_DBUS_CALL_FLAGS_NONE,
+                       -1,
+                       cancellable,
+                       context_async_ready_callback,
+                       NULL);
+}
+
+/**
+ * eekboard_context_set_keyboard:
+ * @context: an #EekboardContext
+ * @keyboard_id: keyboard ID
+ * @cancellable: a #GCancellable
+ *
+ * Select a keyboard with ID @keyboard_id in @context.
+ */
+void
+eekboard_context_set_keyboard (EekboardContext *context,
+                               guint            keyboard_id,
+                               GCancellable    *cancellable)
+{
+    EekboardContextPrivate *priv;
+    EekKeyboard *keyboard;
+
+    g_return_if_fail (EEKBOARD_IS_CONTEXT(context));
+
+    priv = EEKBOARD_CONTEXT_GET_PRIVATE (context);
+
+    keyboard = g_hash_table_lookup (priv->keyboard_hash,
+                                    GUINT_TO_POINTER(keyboard_id));
+    if (!keyboard || keyboard == priv->keyboard)
+        return;
+
+    priv->keyboard = keyboard;
+
+    g_dbus_proxy_call (G_DBUS_PROXY(context),
+                       "SetKeyboard",
+                       g_variant_new ("(u)", keyboard_id),
                        G_DBUS_CALL_FLAGS_NONE,
                        -1,
                        cancellable,
                        context_async_ready_callback,
                        NULL);
-    g_variant_unref (variant);
 }
 
 /**

eekboard/eekboard-context.h

@@ -77,9 +77,16 @@ GType            eekboard_context_get_type      (void) G_GNUC_CONST;
 EekboardContext *eekboard_context_new           (GDBusConnection *connection,
                                                  const gchar     *object_path,
                                                  GCancellable    *cancellable);
-void             eekboard_context_set_keyboard  (EekboardContext *context,
+guint            eekboard_context_add_keyboard  (EekboardContext *context,
                                                  EekKeyboard     *keyboard,
                                                  GCancellable    *cancellable);
+void             eekboard_context_remove_keyboard
+                                                (EekboardContext *context,
+                                                 guint            keyboard_id,
+                                                 GCancellable    *cancellable);
+void             eekboard_context_set_keyboard  (EekboardContext *context,
+                                                 guint            keyboard_id,
+                                                 GCancellable    *cancellable);
 void             eekboard_context_show_keyboard (EekboardContext *context,
                                                  GCancellable    *cancellable);
 void             eekboard_context_hide_keyboard (EekboardContext *context,

src/client-main.c

@@ -151,6 +151,7 @@ main (int argc, char **argv)
         GFileInputStream *input;
         EekLayout *layout;
         EekKeyboard *keyboard;
+        guint keyboard_id;
 
         file = g_file_new_for_path (opt_set_keyboard);
 
@@ -168,8 +169,10 @@ main (int argc, char **argv)
         keyboard = eek_keyboard_new (layout, 640, 480);
         g_object_unref (layout);
 
-        eekboard_context_set_keyboard (context, keyboard, NULL);
+        keyboard_id = eekboard_context_add_keyboard (context, keyboard, NULL);
         g_object_unref (keyboard);
+
+        eekboard_context_set_keyboard (context, keyboard_id, NULL);
     }
 
     if (opt_set_group >= 0) {

src/desktop-client.c

@@ -474,6 +474,7 @@ set_keyboard (EekboardDesktopClient *client,
     EekLayout *layout;
     gchar *keyboard_name;
     static gint keyboard_serial = 0;
+    guint keyboard_id;
 
     if (client->keyboard)
         g_object_unref (client->keyboard);
@@ -485,7 +486,10 @@ set_keyboard (EekboardDesktopClient *client,
     keyboard_name = g_strdup_printf ("keyboard%d", keyboard_serial++);
     eek_element_set_name (EEK_ELEMENT(client->keyboard), keyboard_name);
 
-    eekboard_context_set_keyboard (client->context, client->keyboard, NULL);
+    keyboard_id = eekboard_context_add_keyboard (client->context,
+                                                 client->keyboard,
+                                                 NULL);
+    eekboard_context_set_keyboard (client->context, keyboard_id, NULL);
     if (show)
         eekboard_context_show_keyboard (client->context, NULL);
 }

src/server-context.c

@@ -46,8 +46,15 @@ enum {
 static const gchar introspection_xml[] =
     "<node>"
     "  <interface name='com.redhat.Eekboard.Context'>"
+    "    <method name='AddKeyboard'>"
+    "      <arg direction='in' type='v' name='keyboard'/>"
+    "      <arg direction='out' type='u' name='keyboard_id'/>"
+    "    </method>"
+    "    <method name='RemoveKeyboard'>"
+    "      <arg direction='in' type='u' name='keyboard_id'/>"
+    "    </method>"
     "    <method name='SetKeyboard'>"
-    "      <arg type='v' name='keyboard'/>"
+    "      <arg type='u' name='keyboard_id'/>"
     "    </method>"
     "    <method name='ShowKeyboard'/>"
     "    <method name='HideKeyboard'/>"
@@ -90,7 +97,9 @@ struct _ServerContext {
 
     GtkWidget *window;
     GtkWidget *widget;
+    guint keyboard_id;
     EekKeyboard *keyboard;
+    GHashTable *keyboard_hash;
 
     gulong key_pressed_handler;
     gulong key_released_handler;
@@ -264,10 +273,14 @@ server_context_dispose (GObject *object)
 
     if (context->keyboard) {
         disconnect_keyboard_signals (context);
-        g_object_unref (context->keyboard);
         context->keyboard = NULL;
     }
 
+    if (context->keyboard_hash) {
+        g_hash_table_destroy (context->keyboard_hash);
+        context->keyboard_hash = NULL;
+    }
+
     if (context->window) {
         gtk_widget_destroy (context->window);
         context->window = NULL;
@@ -367,6 +380,12 @@ server_context_init (ServerContext *context)
     context->last_keyboard_visible = FALSE;
 
     context->keyboard = NULL;
+    context->keyboard_hash =
+        g_hash_table_new_full (g_direct_hash,
+                               g_direct_equal,
+                               NULL,
+                               (GDestroyNotify)g_object_unref);
+
     context->widget = NULL;
     context->window = NULL;
     context->key_pressed_handler = 0;
@@ -444,11 +463,13 @@ handle_method_call (GDBusConnection       *connection,
 {
     ServerContext *context = user_data;
 
-    if (g_strcmp0 (method_name, "SetKeyboard") == 0) {
+    if (g_strcmp0 (method_name, "AddKeyboard") == 0) {
-        EekSerializable *serializable;
         GVariant *variant;
+        EekSerializable *serializable;
+        static guint keyboard_id = 0;
 
         g_variant_get (parameters, "(v)", &variant);
+
         serializable = eek_serializable_deserialize (variant);
         if (!EEK_IS_KEYBOARD(serializable)) {
             g_dbus_method_invocation_return_error (invocation,
@@ -457,9 +478,65 @@ handle_method_call (GDBusConnection       *connection,
                                                    "not a keyboard");
             return;
         }
+        eek_keyboard_set_modifier_behavior (EEK_KEYBOARD(serializable),
+                                            EEK_MODIFIER_BEHAVIOR_LATCH);
+
+        g_hash_table_insert (context->keyboard_hash,
+                             GUINT_TO_POINTER(++keyboard_id),
+                             g_object_ref (serializable));
+        g_dbus_method_invocation_return_value (invocation,
+                                               g_variant_new ("(u)",
+                                                              keyboard_id));
+        return;
+    }
+
+    if (g_strcmp0 (method_name, "RemoveKeyboard") == 0) {
+        guint keyboard_id;
+
+        g_variant_get (parameters, "(u)", &keyboard_id);
+
+        if (keyboard_id == context->keyboard_id) {
+            disconnect_keyboard_signals (context);
+            if (context->window) {
+                gtk_widget_hide (context->window);
+                gtk_widget_destroy (context->widget);
+            }
+
+            context->keyboard = NULL;
+        }
+
+        g_hash_table_remove (context->keyboard_hash,
+                             GUINT_TO_POINTER(keyboard_id));
+        g_dbus_method_invocation_return_value (invocation, NULL);
+        return;
+    }
+
+    if (g_strcmp0 (method_name, "SetKeyboard") == 0) {
+        EekKeyboard *keyboard;
+        guint keyboard_id;
+
+        g_variant_get (parameters, "(u)", &keyboard_id);
+
+        keyboard = g_hash_table_lookup (context->keyboard_hash,
+                                        GUINT_TO_POINTER(keyboard_id));
+        if (!keyboard) {
+            g_dbus_method_invocation_return_error (invocation,
+                                                   G_IO_ERROR,
+                                                   G_IO_ERROR_FAILED_HANDLED,
+                                                   "no such keyboard");
+            return;
+        }
+
+        if (keyboard == context->keyboard) {
+            g_dbus_method_invocation_return_value (invocation, NULL);
+            return;
+        }
+
+        if (context->keyboard)
+            disconnect_keyboard_signals (context);
+
+        context->keyboard = keyboard;
 
-        context->keyboard = EEK_KEYBOARD(serializable);
-        disconnect_keyboard_signals (context);
         context->key_pressed_handler =
             g_signal_connect (context->keyboard, "key-pressed",
                               G_CALLBACK(on_key_pressed),
@@ -468,8 +545,6 @@ handle_method_call (GDBusConnection       *connection,
             g_signal_connect (context->keyboard, "key-released",
                               G_CALLBACK(on_key_released),
                               context);
-        eek_keyboard_set_modifier_behavior (context->keyboard,
-                                            EEK_MODIFIER_BEHAVIOR_LATCH);
         
         if (context->window) {
             gboolean was_visible = gtk_widget_get_visible (context->window);