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

249 lines
6.2 KiB
C

/*
* pluma-modeline-plugin.c
* Emacs, Kate and Vim-style modelines support for pluma.
*
* 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 "pluma-modeline-plugin.h"
#include "modeline-parser.h"
#include <pluma/pluma-debug.h>
#include <pluma/pluma-utils.h>
#define WINDOW_DATA_KEY "PlumaModelinePluginWindowData"
#define DOCUMENT_DATA_KEY "PlumaModelinePluginDocumentData"
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 pluma_modeline_plugin_activate (PlumaPlugin *plugin, PlumaWindow *window);
static void pluma_modeline_plugin_deactivate (PlumaPlugin *plugin, PlumaWindow *window);
static GObject *pluma_modeline_plugin_constructor (GType type, guint n_construct_properties, GObjectConstructParam *construct_param);
static void pluma_modeline_plugin_finalize (GObject *object);
PLUMA_PLUGIN_REGISTER_TYPE(PlumaModelinePlugin, pluma_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
pluma_modeline_plugin_class_init (PlumaModelinePluginClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
PlumaPluginClass *plugin_class = PLUMA_PLUGIN_CLASS (klass);
object_class->constructor = pluma_modeline_plugin_constructor;
object_class->finalize = pluma_modeline_plugin_finalize;
plugin_class->activate = pluma_modeline_plugin_activate;
plugin_class->deactivate = pluma_modeline_plugin_deactivate;
}
static GObject *
pluma_modeline_plugin_constructor (GType type,
guint n_construct_properties,
GObjectConstructParam *construct_param)
{
GObject *object;
gchar *data_dir;
object = G_OBJECT_CLASS (pluma_modeline_plugin_parent_class)->constructor (type,
n_construct_properties,
construct_param);
data_dir = pluma_plugin_get_data_dir (PLUMA_PLUGIN (object));
modeline_parser_init (data_dir);
g_free (data_dir);
return object;
}
static void
pluma_modeline_plugin_init (PlumaModelinePlugin *plugin)
{
pluma_debug_message (DEBUG_PLUGINS, "PlumaModelinePlugin initializing");
}
static void
pluma_modeline_plugin_finalize (GObject *object)
{
pluma_debug_message (DEBUG_PLUGINS, "PlumaModelinePlugin finalizing");
modeline_parser_shutdown ();
G_OBJECT_CLASS (pluma_modeline_plugin_parent_class)->finalize (object);
}
static void
on_document_loaded_or_saved (PlumaDocument *document,
const GError *error,
GtkSourceView *view)
{
modeline_parser_apply_modeline (view);
}
static void
connect_handlers (PlumaView *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 (PlumaView *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 (PlumaWindow *window,
PlumaTab *tab,
gpointer user_data)
{
connect_handlers (pluma_tab_get_view (tab));
}
static void
on_window_tab_removed (PlumaWindow *window,
PlumaTab *tab,
gpointer user_data)
{
disconnect_handlers (pluma_tab_get_view (tab));
}
static void
pluma_modeline_plugin_activate (PlumaPlugin *plugin,
PlumaWindow *window)
{
WindowData *wdata;
GList *views;
GList *l;
pluma_debug (DEBUG_PLUGINS);
views = pluma_window_get_views (window);
for (l = views; l != NULL; l = l->next)
{
connect_handlers (PLUMA_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
pluma_modeline_plugin_deactivate (PlumaPlugin *plugin,
PlumaWindow *window)
{
WindowData *wdata;
GList *views;
GList *l;
pluma_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 = pluma_window_get_views (window);
for (l = views; l != NULL; l = l->next)
{
disconnect_handlers (PLUMA_VIEW (l->data));
modeline_parser_deactivate (GTK_SOURCE_VIEW (l->data));
}
g_list_free (views);
}