geany/src/callbacks.c

/*
 *      callbacks.c - this file is part of Geany, a fast and lightweight IDE
 *
 *      Copyright 2005-2007 Enrico Troeger <enrico.troeger@uvena.de>
 *      Copyright 2006-2007 Nick Treleaven <nick.treleaven@btinternet.com>
 *
 *      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 of the License, 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $Id$
 */


#include "geany.h"

#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <gdk/gdkkeysyms.h>
#include <time.h>

#include "callbacks.h"
#include "interface.h"
#include "support.h"

#include "keyfile.h"
#include "document.h"
#include "sciwrappers.h"
#include "sci_cb.h"
#include "ui_utils.h"
#include "utils.h"
#include "dialogs.h"
#include "about.h"
#include "msgwindow.h"
#include "build.h"
#include "prefs.h"
#include "templates.h"
#include "treeviews.h"
#include "keybindings.h"
#include "encodings.h"
#include "search.h"
#include "main.h"
#include "symbols.h"
#include "tools.h"

#ifdef HAVE_VTE
# include "vte.h"
#endif

#ifdef HAVE_SOCKET
# include "socket.h"
#endif


// represents the state while closing all tabs(used to prevent notebook switch page signals)
static gboolean closing_all = FALSE;

// flag to indicate the explicit change of a toggle button of the toolbar menu and so the
// toggled callback should ignore the change since it is not triggered by the user
static gboolean ignore_toolbar_toggle = FALSE;

// flag to indicate that an insert callback was triggered from the file menu,
// so we need to store the current cursor position in editor_info.click_pos.
/// TODO rename me
static gboolean insert_callback_from_menu = FALSE;

// represents the state at switching a notebook page(in the left treeviews widget), to not emit
// the selection-changed signal from tv.tree_openfiles
//static gboolean switch_tv_notebook_page = FALSE;


// real exit function
gint destroyapp(GtkWidget *widget, gpointer gdata)
{
	main_quit();
	return (FALSE);
}


static gboolean check_no_unsaved()
{
	guint i;

	for (i = 0; i < doc_array->len; i++)
	{
		if (doc_list[i].is_valid && doc_list[i].changed)
		{
			return FALSE;
		}
	}
	return TRUE;	// no unsaved edits
}


static gboolean account_for_unsaved()
{
	gint p;

	for (p = 0; p < gtk_notebook_get_n_pages(GTK_NOTEBOOK(app->notebook)); p++)
	{
		gint idx = document_get_n_idx(p);

		if (doc_list[idx].changed)
		{
			if (! dialogs_show_unsaved_file(idx))
				return FALSE;
		}
	}
	return TRUE;
}


// set editor_info.click_pos to the current cursor position if insert_callback_from_menu is TRUE
// to prevent invalid cursor positions which can cause segfaults
static void verify_click_pos(gint idx)
{
	if (insert_callback_from_menu)
	{
		editor_info.click_pos = sci_get_current_position(doc_list[idx].sci);
		insert_callback_from_menu = FALSE;
	}
}


// should only be called from on_exit_clicked
static void quit_app()
{
	guint i;

	configuration_save();

	// force close all tabs
	for (i = 0; i < doc_array->len; i++)
	{
		if (doc_list[i].is_valid && doc_list[i].changed)
		{
			doc_list[i].changed = FALSE;	// ignore changes (already asked user in on_exit_clicked)
		}
	}
	on_close_all1_activate(NULL, NULL);

	destroyapp(NULL, NULL);
}


// wrapper function to abort exit process if cancel button is pressed
gboolean
on_exit_clicked                        (GtkWidget *widget, gpointer gdata)
{
	app->quitting = TRUE;

	if (! check_no_unsaved())
	{
		if (account_for_unsaved())
		{
			quit_app();
			return FALSE;
		}
	}
	else
	if (! app->pref_main_confirm_exit ||
		dialogs_show_question_full(GTK_STOCK_QUIT, GTK_STOCK_CANCEL, NULL,
			_("Do you really want to quit?")))
	{
		quit_app();
		return FALSE;
	}

	app->quitting = FALSE;
	return TRUE;
}


/*
 * GUI callbacks
 */

void
on_new1_activate                       (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	document_new_file(NULL);
}


void
on_new_with_template                   (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	document_new_file((filetype*) user_data);
}



void
on_save1_activate                      (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint cur_page = gtk_notebook_get_current_page(GTK_NOTEBOOK(app->notebook));
	gint idx = document_get_cur_idx();

	if (cur_page >= 0)
	{
		if (doc_list[idx].file_name == NULL)
			dialogs_show_save_as();
		else
			document_save_file(idx, FALSE);
	}
}


void
on_save_as1_activate                   (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	dialogs_show_save_as();
}


void
on_save_all1_activate                  (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint i, idx, max = gtk_notebook_get_n_pages(GTK_NOTEBOOK(app->notebook));
	gint cur_idx = document_get_cur_idx();
	for(i = 0; i < max; i++)
	{
		idx = document_get_n_idx(i);
		if (! doc_list[idx].changed) continue;
		if (doc_list[idx].file_name == NULL)
			dialogs_show_save_as();
		else
			document_save_file(idx, FALSE);
	}
	ui_update_tag_list(cur_idx, TRUE);
	ui_set_window_title(cur_idx);
}


gboolean
on_close_all1_activate                 (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gboolean ret = TRUE;
	gint i, max = gtk_notebook_get_n_pages(GTK_NOTEBOOK(app->notebook));

	closing_all = TRUE;
	for(i = 0; i < max; i++)
	{
		if (! document_remove(0))
		{
			ret = FALSE;
			break;
		}
	}
	closing_all = FALSE;
	tm_workspace_update(TM_WORK_OBJECT(app->tm_workspace), TRUE, TRUE, FALSE);
	// if cancel is clicked, cancel the complete exit process
	return ret;
}


void
on_close1_activate                     (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	guint cur_page = gtk_notebook_get_current_page(GTK_NOTEBOOK(app->notebook));
	document_remove(cur_page);
}


void
on_quit1_activate                      (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	on_exit_clicked(NULL, NULL);
}


// edit actions, c&p & co, from menu bar and from popup menu
void
on_edit1_activate                      (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	ui_update_menu_copy_items(idx);
	ui_update_insert_include_item(idx, 1);
}


void
on_undo1_activate                      (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	if (idx == -1 || ! doc_list[idx].is_valid) return;
	if (document_can_undo(idx)) document_undo(idx);
}


void
on_redo1_activate                      (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	if (idx == -1 || ! doc_list[idx].is_valid) return;
	if (document_can_redo(idx)) document_redo(idx);
}


void
on_cut1_activate                       (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	GtkWidget *focusw = gtk_window_get_focus(GTK_WINDOW(app->window));

	if (GTK_IS_EDITABLE(focusw))
		gtk_editable_cut_clipboard(GTK_EDITABLE(focusw));
	else
	if (IS_SCINTILLA(focusw) && idx >= 0)
		sci_cut(doc_list[idx].sci);
	else
	if (GTK_IS_TEXT_VIEW(focusw))
	{
		GtkTextBuffer *buffer = gtk_text_view_get_buffer(
			GTK_TEXT_VIEW(focusw));
		gtk_text_buffer_cut_clipboard(buffer, gtk_clipboard_get(GDK_NONE), TRUE);
	}
}


void
on_copy1_activate                      (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	GtkWidget *focusw = gtk_window_get_focus(GTK_WINDOW(app->window));

	if (GTK_IS_EDITABLE(focusw))
		gtk_editable_copy_clipboard(GTK_EDITABLE(focusw));
	else
	if (IS_SCINTILLA(focusw) && idx >= 0)
		sci_copy(doc_list[idx].sci);
	else
	if (GTK_IS_TEXT_VIEW(focusw))
	{
		GtkTextBuffer *buffer = gtk_text_view_get_buffer(
			GTK_TEXT_VIEW(focusw));
		gtk_text_buffer_copy_clipboard(buffer, gtk_clipboard_get(GDK_NONE));
	}
}


void
on_paste1_activate                     (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	GtkWidget *focusw = gtk_window_get_focus(GTK_WINDOW(app->window));

	if (GTK_IS_EDITABLE(focusw))
		gtk_editable_paste_clipboard(GTK_EDITABLE(focusw));
	else
	if (IS_SCINTILLA(focusw) && idx >= 0)
	{
#ifdef G_OS_WIN32
		// insert the text manually for now, because the auto conversion of EOL characters by
		// by Scintilla seems to make problems
		if (gtk_clipboard_wait_is_text_available(gtk_clipboard_get(GDK_NONE)))
		{
			gchar *content = gtk_clipboard_wait_for_text(gtk_clipboard_get(GDK_NONE));
			if (content != NULL)
			{
				sci_insert_text(doc_list[idx].sci,
										sci_get_current_position(doc_list[idx].sci), content);
				g_free(content);
			}
		}
#else
		sci_paste(doc_list[idx].sci);
#endif
	}
	else
	if (GTK_IS_TEXT_VIEW(focusw))
	{
		GtkTextBuffer *buffer = gtk_text_view_get_buffer(
			GTK_TEXT_VIEW(focusw));
		gtk_text_buffer_paste_clipboard(buffer, gtk_clipboard_get(GDK_NONE), NULL,
			TRUE);
	}
}


void
on_delete1_activate                    (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	GtkWidget *focusw = gtk_window_get_focus(GTK_WINDOW(app->window));

	if (GTK_IS_EDITABLE(focusw))
		gtk_editable_delete_selection(GTK_EDITABLE(focusw));
	else
	if (IS_SCINTILLA(focusw) && idx >= 0)
		sci_clear(doc_list[idx].sci);
	else
	if (GTK_IS_TEXT_VIEW(focusw))
	{
		GtkTextBuffer *buffer = gtk_text_view_get_buffer(
			GTK_TEXT_VIEW(focusw));
		gtk_text_buffer_delete_selection(buffer, TRUE, TRUE);
	}
}


void
on_preferences1_activate               (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	dialogs_show_prefs_dialog();
}


// about menu item
void
on_info1_activate                      (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	about_dialog_show();
}


// open file
void
on_open1_activate                      (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	dialogs_show_open_file();
}


// quit toolbar button
void
on_toolbutton19_clicked                (GtkToolButton   *toolbutton,
                                        gpointer         user_data)
{
	on_exit_clicked(NULL, NULL);
}


// reload file
void
on_toolbutton23_clicked                (GtkToolButton   *toolbutton,
                                        gpointer         user_data)
{
	on_reload_as_activate(NULL, GINT_TO_POINTER(-1));
}


// also used for reloading when user_data is -1
void
on_reload_as_activate                  (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	gchar *basename;
	gint i = GPOINTER_TO_INT(user_data);
	gchar *charset = NULL;

	if (idx < 0 || ! doc_list[idx].is_valid || doc_list[idx].file_name == NULL)
		return;
	if (i >= 0)
	{
		if (i >= GEANY_ENCODINGS_MAX || encodings[i].charset == NULL) return;
		charset = encodings[i].charset;
	}

	basename = g_path_get_basename(doc_list[idx].file_name);
	if (dialogs_show_question_full(_("_Reload"), GTK_STOCK_CANCEL,
		_("Any unsaved changes will be lost."),
		_("Are you sure you want to reload '%s'?"), basename))
	{
		document_reload_file(idx, charset);
		if (charset != NULL)
			ui_update_statusbar(idx, -1);
	}
	g_free(basename);
}


void
on_images_and_text2_activate           (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	if (ignore_toolbar_toggle) return;

	gtk_toolbar_set_style(GTK_TOOLBAR(app->toolbar), GTK_TOOLBAR_BOTH);
	app->toolbar_icon_style = GTK_TOOLBAR_BOTH;
}


void
on_images_only2_activate               (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	if (ignore_toolbar_toggle) return;

	gtk_toolbar_set_style(GTK_TOOLBAR(app->toolbar), GTK_TOOLBAR_ICONS);
	app->toolbar_icon_style = GTK_TOOLBAR_ICONS;
}


void
on_text_only2_activate                 (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	if (ignore_toolbar_toggle) return;

	gtk_toolbar_set_style(GTK_TOOLBAR(app->toolbar), GTK_TOOLBAR_TEXT);
	app->toolbar_icon_style = GTK_TOOLBAR_TEXT;
}


void
on_change_font1_activate               (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	dialogs_show_open_font();
}


// new file
void
on_toolbutton8_clicked                 (GtkToolButton   *toolbutton,
                                        gpointer         user_data)
{
	document_new_file(NULL);
}

// open file
void
on_toolbutton9_clicked                 (GtkToolButton   *toolbutton,
                                        gpointer         user_data)
{
	dialogs_show_open_file();
}


// save file
void
on_toolbutton10_clicked                (GtkToolButton   *toolbutton,
                                        gpointer         user_data)
{
	on_save1_activate(NULL, user_data);
}


static void setup_find_next(GtkEditable *editable)
{
	g_free(search_data.text);
	search_data.text = g_strdup(gtk_editable_get_chars(editable, 0, -1));
	// clear search flags so can later use Search->Find Next/Previous
	search_data.flags = 0;
	search_data.backwards = FALSE;
}


// search text
void
on_entry1_activate                     (GtkEntry        *entry,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();

	setup_find_next(GTK_EDITABLE(entry));
	document_search_bar_find(idx, search_data.text, 0, FALSE);
}


// search text
void
on_entry1_changed                      (GtkEditable     *editable,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();

	setup_find_next(editable);
	document_search_bar_find(idx, search_data.text, 0, TRUE);
}


// search text
void
on_toolbutton18_clicked                (GtkToolButton   *toolbutton,
                                        gpointer         user_data)
{
	//on_entry1_changed(NULL, NULL);
	gint idx = document_get_cur_idx();
	GtkWidget *entry = lookup_widget(GTK_WIDGET(app->window), "entry1");

	setup_find_next(GTK_EDITABLE(entry));
	document_search_bar_find(idx, search_data.text, 0, FALSE);
}


void
on_toolbar_large_icons1_activate       (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	if (ignore_toolbar_toggle) return;

	app->toolbar_icon_size = GTK_ICON_SIZE_LARGE_TOOLBAR;
	ui_update_toolbar_icons(GTK_ICON_SIZE_LARGE_TOOLBAR);
}


void
on_toolbar_small_icons1_activate       (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	if (ignore_toolbar_toggle) return;

	app->toolbar_icon_size = GTK_ICON_SIZE_SMALL_TOOLBAR;
	ui_update_toolbar_icons(GTK_ICON_SIZE_SMALL_TOOLBAR);
}


// hides toolbar from toolbar popup menu
void
on_hide_toolbar1_activate              (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	GtkWidget *tool_item = lookup_widget(GTK_WIDGET(app->window), "menu_show_toolbar1");
	gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(tool_item), FALSE);
}


// zoom in from menu bar and popup menu
void
on_zoom_in1_activate                   (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	static gboolean done = 1;

	if (idx >= 0 && doc_list[idx].is_valid)
	{
		if (done++ % 3 == 0) sci_set_line_numbers(doc_list[idx].sci, app->show_linenumber_margin,
				(sci_get_zoom(doc_list[idx].sci) / 2));
		sci_zoom_in(doc_list[idx].sci);
	}
}

// zoom out from menu bar and popup menu
void
on_zoom_out1_activate                   (GtkMenuItem     *menuitem,
                                         gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	if (idx >= 0 && doc_list[idx].is_valid)
	{
		if (sci_get_zoom(doc_list[idx].sci) == 0)
			sci_set_line_numbers(doc_list[idx].sci, app->show_linenumber_margin, 0);
		sci_zoom_out(doc_list[idx].sci);
	}
}


void
on_normal_size1_activate               (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	if (idx >= 0 && doc_list[idx].is_valid)
	{
		sci_zoom_off(doc_list[idx].sci);
		sci_set_line_numbers(doc_list[idx].sci, app->show_linenumber_margin, 0);
	}
}


// close tab
void
on_toolbutton15_clicked                (GtkToolButton   *toolbutton,
                                        gpointer         user_data)
{
	gint cur_page = gtk_notebook_get_current_page(GTK_NOTEBOOK(app->notebook));
	document_remove(cur_page);
}


// changes window-title on switching tabs and lots of other things
void
on_notebook1_switch_page               (GtkNotebook     *notebook,
                                        GtkNotebookPage *page,
                                        guint            page_num,
                                        gpointer         user_data)
{
	gint idx;

	if (closing_all) return;

	// guint == -1 seems useless, but it isn't!
	if (page_num == (guint) -1 && page != NULL)
		idx = document_find_by_sci(SCINTILLA(page));
	else
		idx = document_get_n_idx(page_num);

	if (idx >= 0 && app->opening_session_files == FALSE)
	{
		gtk_tree_model_foreach(GTK_TREE_MODEL(tv.store_openfiles), treeviews_find_node, GINT_TO_POINTER(idx));

		document_set_text_changed(idx);
		ui_update_popup_reundo_items(idx);
		ui_document_show_hide(idx); // update the document menu
		build_menu_update(idx);
		ui_update_statusbar(idx, -1);
		ui_set_window_title(idx);
		ui_update_tag_list(idx, FALSE);
	}
}


void
on_notebook1_switch_page_after         (GtkNotebook     *notebook,
                                        GtkNotebookPage *page,
                                        guint            page_num,
                                        gpointer         user_data)
{
	gint idx;

	if (closing_all) return;

	// guint == -1 seems useless, but it isn't!
	if (page_num == (guint) -1 && page != NULL)
		idx = document_find_by_sci(SCINTILLA(page));
	else
		idx = document_get_n_idx(page_num);

	if (idx >= 0 && app->opening_session_files == FALSE)
	{
		utils_check_disk_status(idx, FALSE);

#ifdef HAVE_VTE
	vte_cwd(doc_list[idx].file_name, FALSE);
#endif
	}
}


void
on_tv_notebook_switch_page             (GtkNotebook     *notebook,
                                        GtkNotebookPage *page,
                                        guint            page_num,
                                        gpointer         user_data)
{
	//switch_tv_notebook_page = TRUE;
}


/*
 * open dialog callbacks
*/

// file open dialog, opened
void
on_file_open_dialog_response           (GtkDialog *dialog,
                                        gint response,
                                        gpointer user_data)
{
	gtk_widget_hide(app->open_filesel);

	if (response == GTK_RESPONSE_ACCEPT || response == GTK_RESPONSE_APPLY)
	{
		GSList *filelist;
		GSList *flist;
		gint filetype_idx = gtk_combo_box_get_active(GTK_COMBO_BOX(
						lookup_widget(GTK_WIDGET(dialog), "filetype_combo")));
		gint encoding_idx = gtk_combo_box_get_active(GTK_COMBO_BOX(
						lookup_widget(GTK_WIDGET(dialog), "encoding_combo")));
		filetype *ft = NULL;
		gchar *charset = NULL;
		gboolean ro = (response == GTK_RESPONSE_APPLY);	// View clicked

		if (filetype_idx >= 0 && filetype_idx < GEANY_FILETYPES_ALL) ft = filetypes[filetype_idx];
		if (encoding_idx >= 0 && encoding_idx < GEANY_ENCODINGS_MAX)
			charset = encodings[encoding_idx].charset;

		filelist = gtk_file_chooser_get_filenames(GTK_FILE_CHOOSER(app->open_filesel));
		flist = filelist;
		while (flist != NULL)
		{
			if (g_file_test((gchar*) flist->data, G_FILE_TEST_IS_REGULAR | G_FILE_TEST_IS_SYMLINK))
			{
				document_open_file(-1, (gchar*) flist->data, 0, ro, ft, charset);
			}
			g_free(flist->data);
			flist = flist->next;
		}
		g_slist_free(filelist);
	}
}


// callback for the text entry for typing in filename
void
on_file_open_entry_activate            (GtkEntry        *entry,
                                        gpointer         user_data)
{
	gchar *locale_filename = utils_get_locale_from_utf8(gtk_entry_get_text(entry));

	if (g_file_test(locale_filename, G_FILE_TEST_IS_DIR))
	{
		gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(app->open_filesel), locale_filename);
	}
	else if (g_file_test(locale_filename, G_FILE_TEST_IS_REGULAR | G_FILE_TEST_IS_SYMLINK))
	{
		gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(app->open_filesel), locale_filename);
		on_file_open_dialog_response(GTK_DIALOG(app->open_filesel), GTK_RESPONSE_ACCEPT, NULL);
	}

	g_free(locale_filename);
}


void
on_file_open_selection_changed         (GtkFileChooser  *filechooser,
                                        gpointer         user_data)
{
	gchar *filename = gtk_file_chooser_get_filename(filechooser);
	gboolean is_on = gtk_file_chooser_get_show_hidden(filechooser);

	if (filename)
	{
		// try to get the UTF-8 equivalent for the filename, fallback to filename if error
		gchar *utf8_filename = utils_get_utf8_from_locale(filename);

		gtk_entry_set_text(GTK_ENTRY(lookup_widget(
				GTK_WIDGET(filechooser), "file_entry")), utf8_filename);
		g_free(utf8_filename);
		g_free(filename);
	}

	gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(
			lookup_widget(GTK_WIDGET(filechooser), "check_hidden")), is_on);
}


/*
 * save dialog callbacks
 */
void
on_file_save_dialog_response           (GtkDialog *dialog,
                                        gint response,
                                        gpointer user_data)
{
	if (response == GTK_RESPONSE_ACCEPT)
	{
		gint idx = document_get_cur_idx();
		gchar *new_filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(app->save_filesel));

		// check if file exists and ask whether to overwrite or not
		if (g_file_test(new_filename, G_FILE_TEST_EXISTS))
		{
			if (dialogs_show_question(
						_("The file '%s' already exists. Do you want to overwrite it?"),
						new_filename) == FALSE) return;
		}
		gtk_widget_hide(app->save_filesel);

		if (doc_list[idx].file_name)
		{	// create a new tm_source_file object otherwise tagmanager won't work correctly
			tm_workspace_remove_object(doc_list[idx].tm_file, TRUE);
			doc_list[idx].tm_file = NULL;
			g_free(doc_list[idx].file_name);
		}
		doc_list[idx].file_name = new_filename;

		utils_replace_filename(idx);
		document_save_file(idx, TRUE);

		build_menu_update(idx);

		// finally add current file to recent files menu
		ui_add_recent_file(doc_list[idx].file_name);
	}
	else gtk_widget_hide(app->save_filesel);
}


/*
 * font dialog callbacks
 */
void
on_font_ok_button_clicked              (GtkButton       *button,
                                        gpointer         user_data)
{
	// We do the same thing as apply, but we close the dialog after.
	on_font_apply_button_clicked(button, NULL);
	gtk_widget_hide(app->open_fontsel);
}


void
on_font_apply_button_clicked           (GtkButton       *button,
                                        gpointer         user_data)
{
	gchar *fontname;

	fontname = gtk_font_selection_dialog_get_font_name(
		GTK_FONT_SELECTION_DIALOG(app->open_fontsel));
	ui_set_editor_font(fontname);
	g_free(fontname);
}


void
on_font_cancel_button_clicked         (GtkButton       *button,
                                        gpointer         user_data)
{
	gtk_widget_hide(app->open_fontsel);
}


/*
 * color dialog callbacks
 */
void
on_color_cancel_button_clicked         (GtkButton       *button,
                                        gpointer         user_data)
{
	gtk_widget_hide(app->open_colorsel);
}


void
on_color_ok_button_clicked             (GtkButton       *button,
                                        gpointer         user_data)
{
	GdkColor color;
	gint idx = document_get_cur_idx();
	gchar *hex;

	gtk_widget_hide(app->open_colorsel);
	if (idx == -1 || ! doc_list[idx].is_valid) return;

	gtk_color_selection_get_current_color(
			GTK_COLOR_SELECTION(GTK_COLOR_SELECTION_DIALOG(app->open_colorsel)->colorsel), &color);

	hex = utils_get_hex_from_color(&color);
	sci_add_text(doc_list[idx].sci, hex);
	g_free(hex);
}


gboolean
on_window_configure_event              (GtkWidget *widget,
                                        GdkEventConfigure *event,
                                        gpointer user_data)
{
	app->geometry[0] = event->x;
	app->geometry[1] = event->y;
	app->geometry[2] = event->width;
	app->geometry[3] = event->height;

	return FALSE;
}


gboolean
on_window_key_press_event              (GtkWidget *widget,
                                        GdkEventKey *event,
                                        gpointer user_data)
{
	return event->keyval == 0 ? FALSE : keybindings_got_event(widget, event, user_data);
}


void
on_crlf_activate                       (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	if (app->ignore_callback || idx == -1 || ! doc_list[idx].is_valid) return;
	sci_convert_eols(doc_list[idx].sci, SC_EOL_CRLF);
	sci_set_eol_mode(doc_list[idx].sci, SC_EOL_CRLF);
}


void
on_lf_activate                         (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	if (app->ignore_callback || idx == -1 || ! doc_list[idx].is_valid) return;
	sci_convert_eols(doc_list[idx].sci, SC_EOL_LF);
	sci_set_eol_mode(doc_list[idx].sci, SC_EOL_LF);
}


void
on_cr_activate                         (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	if (app->ignore_callback || idx == -1 || ! doc_list[idx].is_valid) return;
	sci_convert_eols(doc_list[idx].sci, SC_EOL_CR);
	sci_set_eol_mode(doc_list[idx].sci, SC_EOL_CR);
}


void
on_replace_tabs_activate               (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();

	document_replace_tabs(idx);
}


gboolean
toolbar_popup_menu                     (GtkWidget *widget,
                                        GdkEventButton *event,
                                        gpointer user_data)
{
	if (event->button == 3)
	{
		GtkWidget *widget;

		ignore_toolbar_toggle = TRUE;

		switch (app->toolbar_icon_style)
		{
			case 0: widget = lookup_widget(app->toolbar_menu, "images_only2"); break;
			case 1: widget = lookup_widget(app->toolbar_menu, "text_only2"); break;
			default: widget = lookup_widget(app->toolbar_menu, "images_and_text2"); break;
		}
		gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(widget), TRUE);

		switch (app->toolbar_icon_size)
		{
			case GTK_ICON_SIZE_LARGE_TOOLBAR:
					widget = lookup_widget(app->toolbar_menu, "large_icons1"); break;
			default: widget = lookup_widget(app->toolbar_menu, "small_icons1"); break;
		}
		gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(widget), TRUE);

		ignore_toolbar_toggle = FALSE;

		gtk_menu_popup(GTK_MENU(app->toolbar_menu), NULL, NULL, NULL, NULL, event->button, event->time);

		return TRUE;
	}
	return FALSE;
}


void
on_filetype_change                     (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	if (app->ignore_callback || idx < 0 || ! doc_list[idx].is_valid) return;

	document_set_filetype(idx, (filetype*)user_data);
}


void
on_to_lower_case1_activate             (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();

	if (idx < 0 || ! doc_list[idx].is_valid) return;

	sci_cmd(doc_list[idx].sci, SCI_LOWERCASE);
}


void
on_to_upper_case1_activate             (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();

	if (idx < 0 || ! doc_list[idx].is_valid) return;

	sci_cmd(doc_list[idx].sci, SCI_UPPERCASE);
}


void
on_show_toolbar1_toggled               (GtkCheckMenuItem *checkmenuitem,
                                        gpointer         user_data)
{
	if (app->ignore_callback) return;

	app->toolbar_visible = (app->toolbar_visible) ? FALSE : TRUE;;
	ui_widget_show_hide(GTK_WIDGET(app->toolbar), app->toolbar_visible);
}


void
on_fullscreen1_toggled                 (GtkCheckMenuItem *checkmenuitem,
                                        gpointer         user_data)
{
	app->fullscreen = (app->fullscreen) ? FALSE : TRUE;
	ui_set_fullscreen();
}


void
on_show_messages_window1_toggled       (GtkCheckMenuItem *checkmenuitem,
                                        gpointer          user_data)
{
	if (app->ignore_callback) return;

	app->msgwindow_visible = (app->msgwindow_visible) ? FALSE : TRUE;
	ui_widget_show_hide(lookup_widget(app->window, "scrolledwindow1"), app->msgwindow_visible);
}


void
on_markers_margin1_toggled             (GtkCheckMenuItem *checkmenuitem,
                                        gpointer         user_data)
{
	app->show_markers_margin = (app->show_markers_margin) ? FALSE : TRUE;
	ui_show_markers_margin();
}


void
on_show_line_numbers1_toggled          (GtkCheckMenuItem *checkmenuitem,
                                        gpointer         user_data)
{
	app->show_linenumber_margin = (app->show_linenumber_margin) ? FALSE : TRUE;
	ui_show_linenumber_margin();
}


void
on_line_breaking1_toggled              (GtkCheckMenuItem *checkmenuitem,
                                        gpointer         user_data)
{
	if (! app->ignore_callback)
	{
		gint idx = document_get_cur_idx();
		if (idx == -1 || ! doc_list[idx].is_valid) return;
		doc_list[idx].line_breaking = ! doc_list[idx].line_breaking;
		sci_set_lines_wrapped(doc_list[idx].sci, doc_list[idx].line_breaking);
	}
}


void
on_set_file_readonly1_toggled          (GtkCheckMenuItem *checkmenuitem,
                                        gpointer         user_data)
{
	if (! app->ignore_callback)
	{
		gint idx = document_get_cur_idx();
		if (idx == -1 || ! doc_list[idx].is_valid) return;
		doc_list[idx].readonly = ! doc_list[idx].readonly;
		sci_set_readonly(doc_list[idx].sci, doc_list[idx].readonly);
		ui_update_tab_status(idx);
		ui_update_statusbar(idx, -1);
	}
}


void
on_use_auto_indention1_toggled         (GtkCheckMenuItem *checkmenuitem,
                                        gpointer         user_data)
{
	if (! app->ignore_callback)
	{
		gint idx = document_get_cur_idx();
		if (idx == -1 || ! doc_list[idx].is_valid) return;
		doc_list[idx].use_auto_indention = ! doc_list[idx].use_auto_indention;
	}
}


void
on_find_usage1_activate                (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint flags, idx;
	gchar *search_text;

	idx = document_get_cur_idx();
	if (! DOC_IDX_VALID(idx)) return;

	if (sci_can_copy(doc_list[idx].sci))
	{	// take selected text if there is a selection
		search_text = g_malloc(sci_get_selected_text_length(doc_list[idx].sci) + 1);
		sci_get_selected_text(doc_list[idx].sci, search_text);
		flags = SCFIND_MATCHCASE;
	}
	else
	{
		search_text = g_strdup(editor_info.current_word);
		flags = SCFIND_MATCHCASE | SCFIND_WHOLEWORD;
	}

	search_find_usage(search_text, flags, TRUE);
	g_free(search_text);
}


void
on_goto_tag_activate                   (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint type;
	TMTag *tmtag;

	if (menuitem == GTK_MENU_ITEM(lookup_widget(app->popup_menu, "goto_tag_definition1")))
		type = tm_tag_function_t;
	else
		type = tm_tag_prototype_t;

	tmtag = symbols_find_in_workspace(editor_info.current_word, type);
	if (tmtag != NULL)
	{
		if (utils_goto_file_line(
			tmtag->atts.entry.file->work_object.file_name,
			TRUE, tmtag->atts.entry.line))
			return;
	}
	// if we are here, there was no match and we are beeping ;-)
	utils_beep();
	if (type == tm_tag_prototype_t)
		ui_set_statusbar(_("Declaration of \"%s()\" not found"), editor_info.current_word);
	else
		ui_set_statusbar(_("Definition of \"%s()\" not found"), editor_info.current_word);
}


void
on_count_words1_activate               (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	dialogs_show_word_count();
}


void
on_show_color_chooser1_activate        (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gchar colour[9];
	gint idx = document_get_cur_idx();
	gint pos = sci_get_current_position(doc_list[idx].sci);

	if (idx == -1 || ! doc_list[idx].is_valid)
		return;

	sci_cb_find_current_word(doc_list[idx].sci, pos, colour, sizeof colour);
	dialogs_show_color(colour);
}


void
on_compile_button_clicked              (GtkToolButton   *toolbutton,
                                        gpointer         user_data)
{
	on_build_compile_activate(NULL, NULL);
}


void
on_find1_activate                      (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	search_show_find_dialog();
}


void
on_find_next1_activate                 (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();

	if (search_data.text)
	{
		document_find_text(idx, search_data.text, search_data.flags,
			search_data.backwards, TRUE);
	}
}


void
on_find_previous1_activate             (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();

	if (search_data.text == NULL) return;

	if (search_data.flags & SCFIND_REGEXP)
		utils_beep(); //Can't reverse search order for a regex (find next ignores search backwards)
	else
	{
		document_find_text(idx, search_data.text, search_data.flags,
			!search_data.backwards, TRUE);
	}
}


void
on_replace1_activate                   (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	search_show_replace_dialog();
}


void
on_find_in_files1_activate             (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	search_show_find_in_files_dialog();
}


void
on_toolbutton_new_clicked              (GtkToolButton   *toolbutton,
                                        gpointer         user_data)
{
	document_new_file(NULL);
}


void
on_go_to_line_activate                 (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	dialogs_show_goto_line();
}


void
on_goto_line_dialog_response         (GtkDialog *dialog,
                                      gint response,
                                      gpointer user_data)
{
	if (response == GTK_RESPONSE_ACCEPT)
	{
		gint idx = document_get_cur_idx();
		gint line = strtol(gtk_entry_get_text(GTK_ENTRY(user_data)), NULL, 10);

		if (line > 0 && line <= sci_get_line_count(doc_list[idx].sci))
		{
			utils_goto_line(idx, line);
		}
		else
		{
			utils_beep();
		}

	}
	if (dialog) gtk_widget_destroy(GTK_WIDGET(dialog));
}


void
on_goto_line_entry_activate          (GtkEntry        *entry,
                                      gpointer         user_data)
{
	on_goto_line_dialog_response(GTK_DIALOG(user_data), GTK_RESPONSE_ACCEPT, entry);
}


void
on_entry_goto_line_activate            (GtkEntry        *entry,
                                        gpointer         user_data)
{
	on_goto_line_dialog_response(NULL, GTK_RESPONSE_ACCEPT, entry);
}


void
on_toolbutton_goto_clicked             (GtkToolButton   *toolbutton,
                                        gpointer         user_data)
{
	on_goto_line_dialog_response(NULL, GTK_RESPONSE_ACCEPT,
			lookup_widget(app->window, "entry_goto_line"));
}


void
on_help1_activate                      (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
#ifdef G_OS_WIN32
	gchar *uri = g_strconcat("file:///", g_path_skip_root(app->docdir), "/index.html", NULL);
#else
	gchar *uri = g_strconcat("file://", app->docdir, "index.html", NULL);
#endif

	if (! g_file_test(uri + 7, G_FILE_TEST_IS_REGULAR))
	{	// fall back to online documentation if it is not found on the hard disk
		g_free(uri);
		uri = g_strconcat(GEANY_HOMEPAGE, "manual/index.html", NULL);
	}

	utils_start_browser(uri);
	g_free(uri);
}


void
on_help_shortcuts1_activate            (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	dialogs_show_keyboard_shortcuts();
}


void
on_website1_activate                   (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	utils_start_browser(GEANY_HOMEPAGE);
}


void
on_comments_function_activate          (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	gchar *text;
	const gchar *cur_tag = NULL;
	gint line = -1, pos = 0;

	if (doc_list[idx].file_type == NULL)
	{
		ui_set_statusbar(_("Please set the filetype for the current file before using this function."));
		return;
	}

	// utils_get_current_function returns -1 on failure, so sci_get_position_from_line
	// returns the current position, so it should be safe
	line = utils_get_current_function(idx, &cur_tag);
	pos = sci_get_position_from_line(doc_list[idx].sci, line - 1);

	text = templates_get_template_function(doc_list[idx].file_type->id, cur_tag);

	sci_insert_text(doc_list[idx].sci, pos, text);
	g_free(text);
}


void
on_comments_multiline_activate         (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();

	if (! DOC_IDX_VALID(idx) || doc_list[idx].file_type == NULL)
	{
		ui_set_statusbar(_("Please set the filetype for the current file before using this function."));
		return;
	}

	verify_click_pos(idx); // make sure that the click_pos is valid

	sci_cb_insert_multiline_comment(idx);
}


void
on_comments_gpl_activate               (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	gchar *text;

	text = templates_get_template_licence(FILETYPE_ID(doc_list[idx].file_type));

	verify_click_pos(idx); // make sure that the click_pos is valid

	sci_insert_text(doc_list[idx].sci, editor_info.click_pos, text);
	g_free(text);
}


void
on_comments_bsd_activate               (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
/*
	gint idx = document_get_cur_idx();
	gchar *text;

	text = templates_get_template_licence(FILETYPE_ID(doc_list[idx].file_type), GEANY_TEMPLATE_BSD);

	verify_click_pos(idx); // make sure that the click_pos is valid

	sci_insert_text(doc_list[idx].sci, editor_info.click_pos, text);
	g_free(text);
*/
}


void
on_comments_changelog_activate         (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	gchar *text;

	text = templates_get_template_changelog();
	sci_insert_text(doc_list[idx].sci, 0, text);
	// sets the cursor to the right position to type the changelog text,
	// the template has 21 chars + length of name and email
	sci_goto_pos(doc_list[idx].sci, 21 + strlen(app->pref_template_developer) + strlen(app->pref_template_mail), TRUE);

	g_free(text);
}


void
on_comments_fileheader_activate        (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	gchar *text;

	text = templates_get_template_fileheader(idx);

	sci_insert_text(doc_list[idx].sci, 0, text);
	sci_goto_pos(doc_list[idx].sci, 0, FALSE);
	g_free(text);
}


void
on_custom_date_dialog_response         (GtkDialog *dialog,
                                        gint response,
                                        gpointer user_data)
{
	if (response == GTK_RESPONSE_ACCEPT)
	{
		g_free(app->custom_date_format);
		app->custom_date_format = g_strdup(gtk_entry_get_text(GTK_ENTRY(user_data)));
	}
	gtk_widget_destroy(GTK_WIDGET(dialog));
}


void
on_custom_date_entry_activate          (GtkEntry        *entry,
                                        gpointer         user_data)
{
	on_custom_date_dialog_response(GTK_DIALOG(user_data), GTK_RESPONSE_ACCEPT, entry);
}


void
on_insert_date_activate                (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	gchar *format;
	gchar time_str[300]; // the entered format string can be maximal 256 chars long, so we have
						 // 44 additional characters for strtime's conversion
	time_t t;
	struct tm *tm;

	if (idx < 0 || ! doc_list[idx].is_valid) return;

	if (utils_str_equal(_("dd.mm.yyyy"), (gchar*) user_data))
		format = "%d.%m.%Y";
	else if (utils_str_equal(_("mm.dd.yyyy"), (gchar*) user_data))
		format = "%m.%d.%Y";
	else if (utils_str_equal(_("yyyy/mm/dd"), (gchar*) user_data))
		format = "%Y/%m/%d";
	else if (utils_str_equal(_("dd.mm.yyyy hh:mm:ss"), (gchar*) user_data))
		format = "%d.%m.%Y %H:%M:%S";
	else if (utils_str_equal(_("mm.dd.yyyy hh:mm:ss"), (gchar*) user_data))
		format = "%m.%d.%Y %H:%M:%S";
	else if (utils_str_equal(_("yyyy/mm/dd hh:mm:ss"), (gchar*) user_data))
		format = "%Y/%m/%d %H:%M:%S";
	else if (utils_str_equal(_("Use Custom Date Format"), (gchar*) user_data))
		format = app->custom_date_format;
	else
	{
		// set default value
		if (utils_str_equal("", app->custom_date_format))
		{
			g_free(app->custom_date_format);
			app->custom_date_format = g_strdup("%d.%m.%Y");
		}

		dialogs_show_input(_("Custom Date Format"),
			_("Enter here a custom date and time format. You can use any conversion specifiers which can be used with the ANSI C strftime function. See \"man strftime\" for more information."),
			app->custom_date_format,
			G_CALLBACK(on_custom_date_dialog_response),
			G_CALLBACK(on_custom_date_entry_activate));
		return;
	}

	// get the current time
	t = time(NULL);
	tm = localtime(&t);
	if (strftime(time_str, sizeof time_str, format, tm) != 0)
	{
		verify_click_pos(idx); // make sure that the click_pos is valid

		sci_insert_text(doc_list[idx].sci, editor_info.click_pos, time_str);
	}
	else
	{
		utils_beep();
		msgwin_status_add(
				_("Date format string could not be converted (possibly too long)."));
	}
}


void
on_insert_include_activate             (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	gint pos = -1;
	gchar *text;

	if (! DOC_IDX_VALID(idx) || user_data == NULL) return;

	verify_click_pos(idx); // make sure that the click_pos is valid

	if (utils_str_equal(user_data, "blank"))
	{
		text = g_strdup("#include \"\"\n");
		pos = editor_info.click_pos + 10;
	}
	else
	{
		text = g_strconcat("#include <", user_data, ">\n", NULL);
	}

	sci_insert_text(doc_list[idx].sci, editor_info.click_pos, text);
	g_free(text);
	if (pos >= 0)
		sci_goto_pos(doc_list[idx].sci, pos, FALSE);
}


void
on_includes_arguments_dialog_response  (GtkDialog *dialog,
                                        gint response,
                                        gpointer user_data)
{
	filetype *ft = user_data;

	g_return_if_fail(ft != NULL);

	if (response == GTK_RESPONSE_ACCEPT)
	{
		const gchar *newstr;
		struct build_programs *programs = ft->programs;

		if (ft->actions->can_compile)
		{
			newstr = gtk_entry_get_text(
					GTK_ENTRY(lookup_widget(GTK_WIDGET(dialog), "includes_entry1")));
			if (! utils_str_equal(newstr, programs->compiler))
			{
				if (programs->compiler) g_free(programs->compiler);
				programs->compiler = g_strdup(newstr);
				programs->modified = TRUE;
			}
		}
		if (ft->actions->can_link)
		{
			newstr = gtk_entry_get_text(
					GTK_ENTRY(lookup_widget(GTK_WIDGET(dialog), "includes_entry2")));
			if (! utils_str_equal(newstr, programs->linker))
			{
				if (programs->linker) g_free(programs->linker);
				programs->linker = g_strdup(newstr);
				programs->modified = TRUE;
			}
		}
		if (ft->actions->can_exec)
		{
			newstr = gtk_entry_get_text(
					GTK_ENTRY(lookup_widget(GTK_WIDGET(dialog), "includes_entry3")));
			if (! utils_str_equal(newstr, programs->run_cmd))
			{
				if (programs->run_cmd) g_free(programs->run_cmd);
				programs->run_cmd = g_strdup(newstr);
				programs->modified = TRUE;
			}
		}
	}
}


void
on_includes_arguments_tex_dialog_response  (GtkDialog *dialog,
                                            gint response,
                                            gpointer user_data)
{
	filetype *ft = user_data;
	g_return_if_fail(ft != NULL);

	if (response == GTK_RESPONSE_ACCEPT)
	{
		const gchar *newstr;
		struct build_programs *programs = ft->programs;

		newstr = gtk_entry_get_text(
				GTK_ENTRY(lookup_widget(GTK_WIDGET(dialog), "tex_entry1")));
		if (! utils_str_equal(newstr, programs->compiler))
		{
			if (programs->compiler) g_free(programs->compiler);
			programs->compiler = g_strdup(newstr);
			programs->modified = TRUE;
		}
		newstr = gtk_entry_get_text(
				GTK_ENTRY(lookup_widget(GTK_WIDGET(dialog), "tex_entry2")));
		if (! utils_str_equal(newstr, programs->linker))
		{
			if (programs->linker) g_free(programs->linker);
			programs->linker = g_strdup(newstr);
			programs->modified = TRUE;
		}
		newstr = gtk_entry_get_text(
				GTK_ENTRY(lookup_widget(GTK_WIDGET(dialog), "tex_entry3")));
		if (! utils_str_equal(newstr, programs->run_cmd))
		{
			if (programs->run_cmd) g_free(programs->run_cmd);
			programs->run_cmd = g_strdup(newstr);
			programs->modified = TRUE;
		}
		newstr = gtk_entry_get_text(
				GTK_ENTRY(lookup_widget(GTK_WIDGET(dialog), "tex_entry4")));
		if (! utils_str_equal(newstr, programs->run_cmd2))
		{
			if (programs->run_cmd2) g_free(programs->run_cmd2);
			programs->run_cmd2 = g_strdup(newstr);
			programs->modified = TRUE;
		}
	}
}


void
on_file_open_check_hidden_toggled      (GtkToggleButton *togglebutton,
                                        gpointer         user_data)
{
	gboolean is_on = gtk_toggle_button_get_active(togglebutton);

	gtk_file_chooser_set_show_hidden(GTK_FILE_CHOOSER(app->open_filesel), is_on);
}


void
on_file_properties_activate            (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	dialogs_show_file_properties(idx);
}


void
on_menu_fold_all1_activate             (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();

	document_fold_all(idx);
}


void
on_menu_unfold_all1_activate           (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();

	document_unfold_all(idx);
}


void
on_run_button_clicked                  (GtkToolButton   *toolbutton,
                                        gpointer         user_data)
{
	on_build_execute_activate(NULL, NULL);
}


void
on_go_to_line1_activate                (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	// this is search menu cb; call popup menu goto cb
	on_go_to_line_activate(menuitem, user_data);
}


void
on_menu_remove_indicators1_activate    (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	document_clear_indicators(idx);
}


void
on_encoding_change                     (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	guint i = GPOINTER_TO_INT(user_data);

	if (app->ignore_callback || ! DOC_IDX_VALID(idx) || encodings[i].charset == NULL ||
		utils_str_equal(encodings[i].charset, doc_list[idx].encoding)) return;

	if (doc_list[idx].readonly)
	{
		utils_beep();
		return;
	}
	document_undo_add(idx, UNDO_ENCODING, g_strdup(doc_list[idx].encoding));

	document_set_encoding(idx, encodings[i].charset);
}


void
on_print1_activate                     (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();

	document_print(idx);
}


void
on_menu_select_all1_activate           (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();

	if (idx < 0 || ! doc_list[idx].is_valid) return;

	sci_select_all(doc_list[idx].sci);
}


void
on_menu_show_sidebar1_toggled          (GtkCheckMenuItem *checkmenuitem,
                                        gpointer         user_data)
{
	if (app->ignore_callback) return;

	app->sidebar_visible = ! app->sidebar_visible;
	if (! app->sidebar_openfiles_visible && ! app->sidebar_symbol_visible)
	{
		app->sidebar_symbol_visible = TRUE;
		app->sidebar_openfiles_visible = TRUE;
	}
	ui_treeviews_show_hide(TRUE);
}


void
on_menu_write_unicode_bom1_toggled     (GtkCheckMenuItem *checkmenuitem,
                                        gpointer         user_data)
{
	if (! app->ignore_callback)
	{
		gint idx = document_get_cur_idx();

		if (idx == -1 || ! doc_list[idx].is_valid) return;
		if (doc_list[idx].readonly)
		{
			utils_beep();
			return;
		}

		document_undo_add(idx, UNDO_BOM, GINT_TO_POINTER(doc_list[idx].has_bom));

		doc_list[idx].has_bom = ! doc_list[idx].has_bom;

		ui_update_statusbar(idx, -1);
	}
}


void
on_menu_comment_line1_activate         (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	if (idx == -1 || ! doc_list[idx].is_valid) return;
	sci_cb_do_comment(idx, -1, FALSE);
}


void
on_menu_uncomment_line1_activate       (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	if (idx == -1 || ! doc_list[idx].is_valid) return;
	sci_cb_do_uncomment(idx, -1);
}


void
on_menu_toggle_line_commentation1_activate
                                       (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	if (idx == -1 || ! doc_list[idx].is_valid) return;
	sci_cb_do_comment_toggle(idx);
}


void
on_menu_duplicate_line1_activate       (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	if (idx == -1 || ! doc_list[idx].is_valid) return;
	if (sci_can_copy(doc_list[idx].sci))
		sci_selection_duplicate(doc_list[idx].sci);
	else
		sci_line_duplicate(doc_list[idx].sci);
}


void
on_menu_increase_indent1_activate      (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	if (idx == -1 || ! doc_list[idx].is_valid) return;

	if (sci_get_lines_selected(doc_list[idx].sci) > 1)
	{
		sci_cmd(doc_list[idx].sci, SCI_TAB);
	}
	else
	{
		gint line, ind_pos, old_pos;

		old_pos = sci_get_current_position(doc_list[idx].sci);
		line = sci_get_current_line(doc_list[idx].sci, old_pos);
		ind_pos = sci_get_line_indent_position(doc_list[idx].sci, line);

		sci_set_current_position(doc_list[idx].sci, ind_pos);
		sci_cmd(doc_list[idx].sci, SCI_TAB);
		sci_set_current_position(doc_list[idx].sci,
			(old_pos > ind_pos) ? old_pos + 1 : old_pos);
	}
}


void
on_menu_decrease_indent1_activate      (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	gint idx = document_get_cur_idx();
	if (idx == -1 || ! doc_list[idx].is_valid) return;

	if (sci_get_lines_selected(doc_list[idx].sci) > 1)
	{
		sci_cmd(doc_list[idx].sci, SCI_BACKTAB);
	}
	else
	{
		gint line, ind_pos, old_pos;

		old_pos = sci_get_current_position(doc_list[idx].sci);
		line = sci_get_current_line(doc_list[idx].sci, old_pos);
		ind_pos = sci_get_line_indent_position(doc_list[idx].sci, line);

		if (ind_pos == sci_get_position_from_line(doc_list[idx].sci, line))
			return;
		sci_set_current_position(doc_list[idx].sci, ind_pos);
		sci_cmd(doc_list[idx].sci, SCI_BACKTAB);
		sci_set_current_position(doc_list[idx].sci,
			(old_pos >= ind_pos) ? old_pos - 1 : old_pos);
	}
}


void
on_next_message1_activate              (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	if (! ui_tree_view_find_next(GTK_TREE_VIEW(msgwindow.tree_msg),
		msgwin_goto_messages_file_line))
		ui_set_statusbar(_("No more message items."));
}


void
on_menu_insert_special_chars1_activate (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	tools_show_dialog_insert_special_chars();
}


void
on_menu_comments_multiline_activate    (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	insert_callback_from_menu = TRUE;
	on_comments_multiline_activate(menuitem, user_data);
}


void
on_menu_comments_gpl_activate          (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	insert_callback_from_menu = TRUE;
	on_comments_gpl_activate(menuitem, user_data);
}


void
on_menu_comments_bsd_activate          (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	insert_callback_from_menu = TRUE;
	on_comments_bsd_activate(menuitem, user_data);
}


void
on_menu_insert_include_activate        (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	insert_callback_from_menu = TRUE;
	on_insert_include_activate(menuitem, user_data);
}


void
on_menu_insert_date_activate           (GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
	insert_callback_from_menu = TRUE;
	on_insert_date_activate(menuitem, user_data);
}