[gspell/wip/buffer: 2/3] Create private GspellBufferNotifier class

[Sébastien Wilmet <swilmet src gnome org>]

commit 9773832b48e66b98da04dd12b291c423893e809f
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Mon Dec 28 19:01:52 2015 +0100

    Create private GspellBufferNotifier class

 docs/reference/Makefile.am      |    7 ++-
 gspell/Makefile.am              |   14 +++---
 gspell/gspell-buffer-notifier.c |   95 +++++++++++++++++++++++++++++++++++++++
 gspell/gspell-buffer-notifier.h |   47 +++++++++++++++++++
 po/POTFILES.in                  |    1 +
 5 files changed, 155 insertions(+), 9 deletions(-)
---
diff --git a/docs/reference/Makefile.am b/docs/reference/Makefile.am
index d6bc321..9b9aab8 100644
--- a/docs/reference/Makefile.am
+++ b/docs/reference/Makefile.am
@@ -19,9 +19,10 @@ CFILE_GLOB = $(top_srcdir)/gspell/*.c
 
 # Header files or dirs to ignore when scanning. Use base file/dir names
 # e.g. IGNORE_HFILES=gtkdebug.h gtkintl.h private_code
-IGNORE_HFILES =                        \
-       gspell-osx.h            \
-       gspell-utils.h          \
+IGNORE_HFILES =                                        \
+       gspell-buffer-notifier.h                \
+       gspell-osx.h                            \
+       gspell-utils.h                          \
        gtktextregion.h
 
 # Extra options to supply to gtkdoc-mkdb
diff --git a/gspell/Makefile.am b/gspell/Makefile.am
index b7b9ba6..8041ec7 100644
--- a/gspell/Makefile.am
+++ b/gspell/Makefile.am
@@ -40,14 +40,16 @@ gspell_public_c_files =                             \
        gspell-navigator-gtv.c                  \
        gspell-text-buffer.c
 
-gspell_private_headers =       \
-       gconstructor.h          \
-       gspell-utils.h          \
+gspell_private_headers =                       \
+       gconstructor.h                          \
+       gspell-buffer-notifier.h                \
+       gspell-utils.h                          \
        gtktextregion.h
 
-gspell_private_c_files =       \
-       gspell-init.c           \
-       gspell-utils.c          \
+gspell_private_c_files =                       \
+       gspell-buffer-notifier.c                \
+       gspell-init.c                           \
+       gspell-utils.c                          \
        gtktextregion.c
 
 lib_LTLIBRARIES = libgspell-1.la
diff --git a/gspell/gspell-buffer-notifier.c b/gspell/gspell-buffer-notifier.c
new file mode 100644
index 0000000..ed16115
--- /dev/null
+++ b/gspell/gspell-buffer-notifier.c
@@ -0,0 +1,95 @@
+/*
+ * This file is part of gspell, a spell-checking library.
+ *
+ * Copyright 2015 - Sébastien Wilmet
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "gspell-buffer-notifier.h"
+
+struct _GspellBufferNotifier
+{
+       GObject parent;
+};
+
+enum
+{
+       SIGNAL_TEXT_BUFFER_CHECKER_CHANGED,
+       LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
+G_DEFINE_TYPE (GspellBufferNotifier, _gspell_buffer_notifier, G_TYPE_OBJECT)
+
+static void
+_gspell_buffer_notifier_class_init (GspellBufferNotifierClass *klass)
+{
+       GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+       /**
+        * GspellBufferNotifier::text-buffer-checker-changed:
+        * @notifier: the #GspellBufferNotifier singleton.
+        * @buffer: the #GtkTextBuffer.
+        * @new_checker: (nullable): the new #GspellChecker, or %NULL.
+        *
+        * Emitted when a different spell checker is associated to @buffer.
+        */
+       signals[SIGNAL_TEXT_BUFFER_CHECKER_CHANGED] =
+               g_signal_new ("text-buffer-checker-changed",
+                             G_OBJECT_CLASS_TYPE (object_class),
+                             G_SIGNAL_RUN_LAST,
+                             0,
+                             NULL, NULL, NULL,
+                             G_TYPE_NONE,
+                             2,
+                             GTK_TYPE_TEXT_BUFFER,
+                             GSPELL_TYPE_CHECKER);
+}
+
+static void
+_gspell_buffer_notifier_init (GspellBufferNotifier *notifier)
+{
+}
+
+GspellBufferNotifier *
+_gspell_buffer_notifier_get_instance (void)
+{
+       static GspellBufferNotifier *instance = NULL;
+
+       if (instance == NULL)
+       {
+               instance = g_object_new (GSPELL_TYPE_BUFFER_NOTIFIER, NULL);
+       }
+
+       return instance;
+}
+
+void
+_gspell_buffer_notifier_text_buffer_checker_changed (GspellBufferNotifier *notifier,
+                                                    GtkTextBuffer        *buffer,
+                                                    GspellChecker        *new_checker)
+{
+       g_return_if_fail (GSPELL_IS_BUFFER_NOTIFIER (notifier));
+       g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
+       g_return_if_fail (new_checker == NULL || GSPELL_IS_CHECKER (new_checker));
+
+       g_signal_emit (notifier,
+                      signals[SIGNAL_TEXT_BUFFER_CHECKER_CHANGED], 0,
+                      buffer,
+                      new_checker);
+}
+
+/* ex:set ts=8 noet: */
diff --git a/gspell/gspell-buffer-notifier.h b/gspell/gspell-buffer-notifier.h
new file mode 100644
index 0000000..e41c63e
--- /dev/null
+++ b/gspell/gspell-buffer-notifier.h
@@ -0,0 +1,47 @@
+/*
+ * This file is part of gspell, a spell-checking library.
+ *
+ * Copyright 2015 - Sébastien Wilmet
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GSPELL_BUFFER_NOTIFIER_H__
+#define __GSPELL_BUFFER_NOTIFIER_H__
+
+#include <gtk/gtk.h>
+#include "gspell-checker.h"
+
+G_BEGIN_DECLS
+
+#define GSPELL_TYPE_BUFFER_NOTIFIER (_gspell_buffer_notifier_get_type ())
+
+G_GNUC_INTERNAL
+G_DECLARE_FINAL_TYPE (GspellBufferNotifier, _gspell_buffer_notifier,
+                     GSPELL, BUFFER_NOTIFIER,
+                     GObject)
+
+G_GNUC_INTERNAL
+GspellBufferNotifier * _gspell_buffer_notifier_get_instance                    (void);
+
+G_GNUC_INTERNAL
+void                   _gspell_buffer_notifier_text_buffer_checker_changed     (GspellBufferNotifier 
*notifier,
+                                                                                GtkTextBuffer        *buffer,
+                                                                                GspellChecker        
*new_checker);
+
+G_END_DECLS
+
+#endif /* __GSPELL_BUFFER_NOTIFIER_H__ */
+
+/* ex:set ts=8 noet: */
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 8b89470..f0e1ef7 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -1,4 +1,5 @@
 # List of source files containing translatable strings.
+gspell/gspell-buffer-notifier.c
 gspell/gspell-checker.c
 gspell/gspell-checker-dialog.c
 gspell/gspell-inline-checker-gtv.c