[gnome-builder] libide: keep signal handler ids around for disconnection

[Christian Hergert <chergert src gnome org>]

commit 6d3d2684c82e8de4ac222745789810eaac18d0fa
Author: Christian Hergert <christian hergert me>
Date:   Tue Feb 24 17:25:25 2015 -0800

    libide: keep signal handler ids around for disconnection

 libide/ide-source-view.c |   58 +++++++++++++++++++++++++++-------------------
 1 files changed, 34 insertions(+), 24 deletions(-)
---
diff --git a/libide/ide-source-view.c b/libide/ide-source-view.c
index 5429f6c..a5684f8 100644
--- a/libide/ide-source-view.c
+++ b/libide/ide-source-view.c
@@ -39,6 +39,10 @@ typedef struct
   PangoFontDescription    *font_desc;
   GtkSourceGutterRenderer *line_change_renderer;
 
+  gulong                   buffer_changed_handler;
+  gulong                   buffer_notify_file_handler;
+  gulong                   buffer_notify_language_handler;
+
   guint                    show_grid_lines : 1;
   guint                    show_line_changes : 1;
 } IdeSourceViewPrivate;
@@ -116,42 +120,48 @@ static void
 ide_source_view_connect_buffer (IdeSourceView *self,
                                 IdeBuffer     *buffer)
 {
+  IdeSourceViewPrivate *priv = ide_source_view_get_instance_private (self);
+
   g_assert (IDE_IS_SOURCE_VIEW (self));
   g_assert (IDE_IS_BUFFER (buffer));
 
-  g_signal_connect_object (buffer,
-                           "changed",
-                           G_CALLBACK (ide_source_view__buffer_changed_cb),
-                           self,
-                           G_CONNECT_SWAPPED);
-
-  g_signal_connect_object (buffer,
-                           "notify::file",
-                           G_CALLBACK (ide_source_view__buffer_notify_file_cb),
-                           self,
-                           G_CONNECT_SWAPPED);
-
-  g_signal_connect_object (buffer,
-                           "notify::language",
-                           G_CALLBACK (ide_source_view__buffer_notify_language_cb),
-                           self,
-                           G_CONNECT_SWAPPED);
+  priv->buffer_changed_handler =
+      g_signal_connect_object (buffer,
+                               "changed",
+                               G_CALLBACK (ide_source_view__buffer_changed_cb),
+                               self,
+                               G_CONNECT_SWAPPED);
+
+  priv->buffer_notify_file_handler =
+      g_signal_connect_object (buffer,
+                               "notify::file",
+                               G_CALLBACK (ide_source_view__buffer_notify_file_cb),
+                               self,
+                               G_CONNECT_SWAPPED);
+
+  priv->buffer_notify_language_handler =
+      g_signal_connect_object (buffer,
+                               "notify::language",
+                               G_CALLBACK (ide_source_view__buffer_notify_language_cb),
+                               self,
+                               G_CONNECT_SWAPPED);
+
+  ide_source_view__buffer_notify_language_cb (self, NULL, buffer);
+  ide_source_view__buffer_notify_file_cb (self, NULL, buffer);
 }
 
 static void
 ide_source_view_disconnect_buffer (IdeSourceView *self,
                                    IdeBuffer     *buffer)
 {
+  IdeSourceViewPrivate *priv = ide_source_view_get_instance_private (self);
+
   g_assert (IDE_IS_SOURCE_VIEW (self));
   g_assert (IDE_IS_BUFFER (buffer));
 
-  g_signal_handlers_disconnect_by_func (buffer,
-                                        G_CALLBACK (ide_source_view__buffer_notify_file_cb),
-                                        self);
-
-  g_signal_handlers_disconnect_by_func (buffer,
-                                        G_CALLBACK (ide_source_view__buffer_notify_language_cb),
-                                        self);
+  ide_clear_signal_handler (buffer, &priv->buffer_changed_handler);
+  ide_clear_signal_handler (buffer, &priv->buffer_notify_file_handler);
+  ide_clear_signal_handler (buffer, &priv->buffer_notify_language_handler);
 }
 
 static void