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Perberos
248
plugins/modelines/gedit-modeline-plugin.c
Executable file
248
plugins/modelines/gedit-modeline-plugin.c
Executable file
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/*
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* gedit-modeline-plugin.c
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* Emacs, Kate and Vim-style modelines support for gedit.
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*
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* Copyright (C) 2005-2007 - Steve Frécinaux <code@istique.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <glib/gi18n-lib.h>
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#include <gmodule.h>
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#include "gedit-modeline-plugin.h"
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#include "modeline-parser.h"
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#include <gedit/gedit-debug.h>
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#include <gedit/gedit-utils.h>
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#define WINDOW_DATA_KEY "GeditModelinePluginWindowData"
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#define DOCUMENT_DATA_KEY "GeditModelinePluginDocumentData"
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typedef struct
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{
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gulong tab_added_handler_id;
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gulong tab_removed_handler_id;
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} WindowData;
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typedef struct
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{
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gulong document_loaded_handler_id;
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gulong document_saved_handler_id;
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} DocumentData;
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static void gedit_modeline_plugin_activate (GeditPlugin *plugin, GeditWindow *window);
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static void gedit_modeline_plugin_deactivate (GeditPlugin *plugin, GeditWindow *window);
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static GObject *gedit_modeline_plugin_constructor (GType type, guint n_construct_properties, GObjectConstructParam *construct_param);
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static void gedit_modeline_plugin_finalize (GObject *object);
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GEDIT_PLUGIN_REGISTER_TYPE(GeditModelinePlugin, gedit_modeline_plugin)
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static void
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window_data_free (WindowData *wdata)
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{
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g_slice_free (WindowData, wdata);
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}
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static void
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document_data_free (DocumentData *ddata)
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{
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g_slice_free (DocumentData, ddata);
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}
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static void
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gedit_modeline_plugin_class_init (GeditModelinePluginClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GeditPluginClass *plugin_class = GEDIT_PLUGIN_CLASS (klass);
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object_class->constructor = gedit_modeline_plugin_constructor;
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object_class->finalize = gedit_modeline_plugin_finalize;
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plugin_class->activate = gedit_modeline_plugin_activate;
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plugin_class->deactivate = gedit_modeline_plugin_deactivate;
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}
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static GObject *
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gedit_modeline_plugin_constructor (GType type,
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guint n_construct_properties,
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GObjectConstructParam *construct_param)
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{
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GObject *object;
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gchar *data_dir;
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object = G_OBJECT_CLASS (gedit_modeline_plugin_parent_class)->constructor (type,
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n_construct_properties,
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construct_param);
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data_dir = gedit_plugin_get_data_dir (GEDIT_PLUGIN (object));
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modeline_parser_init (data_dir);
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g_free (data_dir);
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return object;
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}
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static void
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gedit_modeline_plugin_init (GeditModelinePlugin *plugin)
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{
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gedit_debug_message (DEBUG_PLUGINS, "GeditModelinePlugin initializing");
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}
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static void
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gedit_modeline_plugin_finalize (GObject *object)
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{
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gedit_debug_message (DEBUG_PLUGINS, "GeditModelinePlugin finalizing");
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modeline_parser_shutdown ();
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G_OBJECT_CLASS (gedit_modeline_plugin_parent_class)->finalize (object);
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}
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static void
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on_document_loaded_or_saved (GeditDocument *document,
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const GError *error,
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GtkSourceView *view)
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{
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modeline_parser_apply_modeline (view);
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}
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static void
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connect_handlers (GeditView *view)
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{
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DocumentData *data;
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GtkTextBuffer *doc;
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doc = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
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data = g_slice_new (DocumentData);
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data->document_loaded_handler_id =
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g_signal_connect (doc, "loaded",
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G_CALLBACK (on_document_loaded_or_saved),
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view);
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data->document_saved_handler_id =
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g_signal_connect (doc, "saved",
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G_CALLBACK (on_document_loaded_or_saved),
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view);
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g_object_set_data_full (G_OBJECT (doc), DOCUMENT_DATA_KEY,
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data, (GDestroyNotify) document_data_free);
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}
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static void
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disconnect_handlers (GeditView *view)
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{
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DocumentData *data;
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GtkTextBuffer *doc;
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doc = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
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data = g_object_steal_data (G_OBJECT (doc), DOCUMENT_DATA_KEY);
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if (data)
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{
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g_signal_handler_disconnect (doc, data->document_loaded_handler_id);
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g_signal_handler_disconnect (doc, data->document_saved_handler_id);
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document_data_free (data);
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}
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else
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{
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g_warning ("Modeline handlers not found");
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}
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}
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static void
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on_window_tab_added (GeditWindow *window,
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GeditTab *tab,
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gpointer user_data)
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{
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connect_handlers (gedit_tab_get_view (tab));
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}
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static void
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on_window_tab_removed (GeditWindow *window,
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GeditTab *tab,
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gpointer user_data)
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{
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disconnect_handlers (gedit_tab_get_view (tab));
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}
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static void
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gedit_modeline_plugin_activate (GeditPlugin *plugin,
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GeditWindow *window)
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{
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WindowData *wdata;
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GList *views;
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GList *l;
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gedit_debug (DEBUG_PLUGINS);
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views = gedit_window_get_views (window);
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for (l = views; l != NULL; l = l->next)
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{
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connect_handlers (GEDIT_VIEW (l->data));
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modeline_parser_apply_modeline (GTK_SOURCE_VIEW (l->data));
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}
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g_list_free (views);
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wdata = g_slice_new (WindowData);
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wdata->tab_added_handler_id =
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g_signal_connect (window, "tab-added",
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G_CALLBACK (on_window_tab_added), NULL);
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wdata->tab_removed_handler_id =
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g_signal_connect (window, "tab-removed",
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G_CALLBACK (on_window_tab_removed), NULL);
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g_object_set_data_full (G_OBJECT (window), WINDOW_DATA_KEY,
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wdata, (GDestroyNotify) window_data_free);
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}
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static void
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gedit_modeline_plugin_deactivate (GeditPlugin *plugin,
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GeditWindow *window)
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{
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WindowData *wdata;
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GList *views;
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GList *l;
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gedit_debug (DEBUG_PLUGINS);
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wdata = g_object_steal_data (G_OBJECT (window), WINDOW_DATA_KEY);
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g_signal_handler_disconnect (window, wdata->tab_added_handler_id);
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g_signal_handler_disconnect (window, wdata->tab_removed_handler_id);
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window_data_free (wdata);
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views = gedit_window_get_views (window);
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for (l = views; l != NULL; l = l->next)
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{
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disconnect_handlers (GEDIT_VIEW (l->data));
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modeline_parser_deactivate (GTK_SOURCE_VIEW (l->data));
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}
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g_list_free (views);
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}
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