xed/plugins/modelines/gedit-modeline-plugin.c

249 lines
6.2 KiB
C
Executable File

/*
* gedit-modeline-plugin.c
* Emacs, Kate and Vim-style modelines support for gedit.
*
* Copyright (C) 2005-2007 - Steve Frécinaux <code@istique.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <glib/gi18n-lib.h>
#include <gmodule.h>
#include "gedit-modeline-plugin.h"
#include "modeline-parser.h"
#include <gedit/gedit-debug.h>
#include <gedit/gedit-utils.h>
#define WINDOW_DATA_KEY "GeditModelinePluginWindowData"
#define DOCUMENT_DATA_KEY "GeditModelinePluginDocumentData"
typedef struct
{
gulong tab_added_handler_id;
gulong tab_removed_handler_id;
} WindowData;
typedef struct
{
gulong document_loaded_handler_id;
gulong document_saved_handler_id;
} DocumentData;
static void gedit_modeline_plugin_activate (GeditPlugin *plugin, GeditWindow *window);
static void gedit_modeline_plugin_deactivate (GeditPlugin *plugin, GeditWindow *window);
static GObject *gedit_modeline_plugin_constructor (GType type, guint n_construct_properties, GObjectConstructParam *construct_param);
static void gedit_modeline_plugin_finalize (GObject *object);
GEDIT_PLUGIN_REGISTER_TYPE(GeditModelinePlugin, gedit_modeline_plugin)
static void
window_data_free (WindowData *wdata)
{
g_slice_free (WindowData, wdata);
}
static void
document_data_free (DocumentData *ddata)
{
g_slice_free (DocumentData, ddata);
}
static void
gedit_modeline_plugin_class_init (GeditModelinePluginClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GeditPluginClass *plugin_class = GEDIT_PLUGIN_CLASS (klass);
object_class->constructor = gedit_modeline_plugin_constructor;
object_class->finalize = gedit_modeline_plugin_finalize;
plugin_class->activate = gedit_modeline_plugin_activate;
plugin_class->deactivate = gedit_modeline_plugin_deactivate;
}
static GObject *
gedit_modeline_plugin_constructor (GType type,
guint n_construct_properties,
GObjectConstructParam *construct_param)
{
GObject *object;
gchar *data_dir;
object = G_OBJECT_CLASS (gedit_modeline_plugin_parent_class)->constructor (type,
n_construct_properties,
construct_param);
data_dir = gedit_plugin_get_data_dir (GEDIT_PLUGIN (object));
modeline_parser_init (data_dir);
g_free (data_dir);
return object;
}
static void
gedit_modeline_plugin_init (GeditModelinePlugin *plugin)
{
gedit_debug_message (DEBUG_PLUGINS, "GeditModelinePlugin initializing");
}
static void
gedit_modeline_plugin_finalize (GObject *object)
{
gedit_debug_message (DEBUG_PLUGINS, "GeditModelinePlugin finalizing");
modeline_parser_shutdown ();
G_OBJECT_CLASS (gedit_modeline_plugin_parent_class)->finalize (object);
}
static void
on_document_loaded_or_saved (GeditDocument *document,
const GError *error,
GtkSourceView *view)
{
modeline_parser_apply_modeline (view);
}
static void
connect_handlers (GeditView *view)
{
DocumentData *data;
GtkTextBuffer *doc;
doc = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
data = g_slice_new (DocumentData);
data->document_loaded_handler_id =
g_signal_connect (doc, "loaded",
G_CALLBACK (on_document_loaded_or_saved),
view);
data->document_saved_handler_id =
g_signal_connect (doc, "saved",
G_CALLBACK (on_document_loaded_or_saved),
view);
g_object_set_data_full (G_OBJECT (doc), DOCUMENT_DATA_KEY,
data, (GDestroyNotify) document_data_free);
}
static void
disconnect_handlers (GeditView *view)
{
DocumentData *data;
GtkTextBuffer *doc;
doc = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
data = g_object_steal_data (G_OBJECT (doc), DOCUMENT_DATA_KEY);
if (data)
{
g_signal_handler_disconnect (doc, data->document_loaded_handler_id);
g_signal_handler_disconnect (doc, data->document_saved_handler_id);
document_data_free (data);
}
else
{
g_warning ("Modeline handlers not found");
}
}
static void
on_window_tab_added (GeditWindow *window,
GeditTab *tab,
gpointer user_data)
{
connect_handlers (gedit_tab_get_view (tab));
}
static void
on_window_tab_removed (GeditWindow *window,
GeditTab *tab,
gpointer user_data)
{
disconnect_handlers (gedit_tab_get_view (tab));
}
static void
gedit_modeline_plugin_activate (GeditPlugin *plugin,
GeditWindow *window)
{
WindowData *wdata;
GList *views;
GList *l;
gedit_debug (DEBUG_PLUGINS);
views = gedit_window_get_views (window);
for (l = views; l != NULL; l = l->next)
{
connect_handlers (GEDIT_VIEW (l->data));
modeline_parser_apply_modeline (GTK_SOURCE_VIEW (l->data));
}
g_list_free (views);
wdata = g_slice_new (WindowData);
wdata->tab_added_handler_id =
g_signal_connect (window, "tab-added",
G_CALLBACK (on_window_tab_added), NULL);
wdata->tab_removed_handler_id =
g_signal_connect (window, "tab-removed",
G_CALLBACK (on_window_tab_removed), NULL);
g_object_set_data_full (G_OBJECT (window), WINDOW_DATA_KEY,
wdata, (GDestroyNotify) window_data_free);
}
static void
gedit_modeline_plugin_deactivate (GeditPlugin *plugin,
GeditWindow *window)
{
WindowData *wdata;
GList *views;
GList *l;
gedit_debug (DEBUG_PLUGINS);
wdata = g_object_steal_data (G_OBJECT (window), WINDOW_DATA_KEY);
g_signal_handler_disconnect (window, wdata->tab_added_handler_id);
g_signal_handler_disconnect (window, wdata->tab_removed_handler_id);
window_data_free (wdata);
views = gedit_window_get_views (window);
for (l = views; l != NULL; l = l->next)
{
disconnect_handlers (GEDIT_VIEW (l->data));
modeline_parser_deactivate (GTK_SOURCE_VIEW (l->data));
}
g_list_free (views);
}