/*
 *  uat_gui.c
 *
 *  User Accessible Tables GUI
 *  Mantain an array of user accessible data strucures
 *
 * (c) 2007, Luis E. Garcia Ontanon <luis@ontanon.org>
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <gerald@wireshark.org>
 * Copyright 2001 Gerald Combs
 *
 * 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.
 */

/*
 * TO DO:
 * + improvements
 *   - field value check (red/green editbox)
 *   - tooltips (add field descriptions)
 * - Make cells editable
 * - Allow reordering via drag and drop
 */

#include "config.h"
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <math.h>

#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#if GTK_CHECK_VERSION(3,0,0)
# include <gdk/gdkkeysyms-compat.h>
#endif

#include <wsutil/report_err.h>

#include <epan/dfilter/dfilter-macro.h>
#include <epan/emem.h>
#include <epan/proto.h>
#include <epan/packet.h>
#include <epan/uat-int.h>
#include <epan/value_string.h>
#include <wsutil/filesystem.h>

#include "../stat_menu.h"

#include "ui/help_url.h"
#include "ui/gtk/gtkglobals.h"
#include "ui/gtk/gui_utils.h"
#include "ui/gtk/dlg_utils.h"
#include "ui/gtk/stock_icons.h"
#include "ui/gtk/gui_stat_menu.h"
#include "ui/gtk/main.h"
#include "ui/gtk/uat_gui.h"
#include "ui/gtk/packet_list.h"
#include "ui/gtk/webbrowser.h"
#include "ui/gtk/old-gtk-compat.h"
#include "ui/gtk/packet_win.h"

# define BUTTON_SIZE_X -1
# define BUTTON_SIZE_Y -1

struct _uat_rep_t {
	GtkWidget    *window;
	GtkWidget    *vbox;
	GtkWidget    *scrolledwindow;
	GtkTreeView  *list;
	GtkListStore *list_store;
	GtkWidget    *bbox;
	GtkWidget    *bt_new;
	GtkWidget    *bt_edit;
	GtkWidget    *bt_copy;
	GtkWidget    *bt_delete;
	GtkWidget    *bt_refresh;
	GtkWidget    *bt_clear;
	GtkWidget    *bt_up;
	GtkWidget    *bt_down;
	GtkWidget    *bt_apply;
	GtkWidget    *bt_cancel;
	GtkWidget    *bt_ok;
	GtkWidget    *unsaved_window;

	gint          selected;
};

struct _str_pair {
	const char *ptr;
	guint	    len;
};

struct _uat_dlg_data {
	GtkWidget *win;
	GPtrArray *entries;
	uat_t     *uat;
	void      *rec;
	gboolean   is_new;
	gint	   row;
	GPtrArray *tobe_freed;
};

static gboolean unsaved_dialog(GtkWindow *w, GdkEvent *e, gpointer u);
static gboolean uat_window_delete_event_cb(GtkWindow *w, GdkEvent *e, gpointer u);

static void set_buttons(uat_t *uat, gint row) {

	if (!uat->rep) return;

	if (row > 0) {
		gtk_widget_set_sensitive (uat->rep->bt_up, TRUE);
	} else {
		gtk_widget_set_sensitive (uat->rep->bt_up, FALSE);
	}

	if (row < (gint)(uat->raw_data->len - 1) && row >= 0) {
		gtk_widget_set_sensitive (uat->rep->bt_down, TRUE);
	} else {
		gtk_widget_set_sensitive (uat->rep->bt_down, FALSE);
	}

	gtk_widget_set_sensitive (uat->rep->bt_new, TRUE);
	gtk_widget_set_sensitive (uat->rep->bt_clear, TRUE);

	if (row < 0) {
		gtk_widget_set_sensitive (uat->rep->bt_edit, FALSE);
		gtk_widget_set_sensitive (uat->rep->bt_copy, FALSE);
		gtk_widget_set_sensitive (uat->rep->bt_delete, FALSE);
	} else {
		gtk_widget_set_sensitive (uat->rep->bt_edit, TRUE);
		gtk_widget_set_sensitive (uat->rep->bt_copy, TRUE);
		gtk_widget_set_sensitive (uat->rep->bt_delete, TRUE);
	}

	if (uat->changed) {
		g_signal_handlers_disconnect_by_func(uat->rep->window, uat_window_delete_event_cb, uat);
		g_signal_connect(uat->rep->window, "delete_event", G_CALLBACK(unsaved_dialog), uat);
		g_signal_connect(uat->rep->window, "destroy", G_CALLBACK(unsaved_dialog), uat);
	} else {
		g_signal_handlers_disconnect_by_func(uat->rep->window, unsaved_dialog, uat);
		g_signal_connect(GTK_WINDOW(uat->rep->window), "delete_event", G_CALLBACK(uat_window_delete_event_cb), uat);
		g_signal_connect(GTK_WINDOW(uat->rep->window), "destroy", G_CALLBACK(uat_window_delete_event_cb), uat);
	}
}

static void limit_buttons(uat_t *uat) {

	if (!uat->rep) return;

	gtk_widget_set_sensitive (uat->rep->bt_up, FALSE);
	gtk_widget_set_sensitive (uat->rep->bt_down, FALSE);

	gtk_widget_set_sensitive (uat->rep->bt_new, FALSE);
	gtk_widget_set_sensitive (uat->rep->bt_edit, FALSE);
	gtk_widget_set_sensitive (uat->rep->bt_copy, FALSE);
	gtk_widget_set_sensitive (uat->rep->bt_delete, FALSE);

	gtk_widget_set_sensitive (uat->rep->bt_clear, FALSE);
}

static char *fld_tostr(void *rec, uat_field_t *f) {
	guint	    len;
	const char *ptr;
	char       *out;

	f->cb.tostr(rec, &ptr, &len, f->cbdata.tostr, f->fld_data);

	switch(f->mode) {
	    case PT_TXTMOD_NONE:
		case PT_TXTMOD_STRING:
		case PT_TXTMOD_ENUM:
		case PT_TXTMOD_FILENAME:
		case PT_TXTMOD_DIRECTORYNAME:
			out = ep_strndup(ptr, len);
			break;
		case PT_TXTMOD_HEXBYTES: {
			GString *s = g_string_sized_new( len*2 + 1 );
			guint i;

			for (i=0; i<len;i++) g_string_append_printf(s, "%.2X", ((const guint8*)ptr)[i]);

			out = ep_strdup(s->str);

			g_string_free(s, TRUE);
			break;
		}
		default:
			g_assert_not_reached();
			out = NULL;
			break;
	}

	return out;
}



static void append_row(uat_t *uat, guint idx) {
	GPtrArray   *a	 = g_ptr_array_new();
	void	    *rec = UAT_INDEX_PTR(uat, idx);
	uat_field_t *f	 = uat->fields;
	guint	     colnum;
	GtkTreeIter  iter;

	if (! uat->rep) return;

	gtk_list_store_insert_before(uat->rep->list_store, &iter, NULL);
	for ( colnum = 0; colnum < uat->ncols; colnum++ ) {
		g_ptr_array_add(a, fld_tostr(rec, &(f[colnum])));
		gtk_list_store_set(uat->rep->list_store, &iter, colnum, fld_tostr(rec, &(f[colnum])), -1);
	}

	g_ptr_array_free(a, TRUE);
}

static void reset_row(uat_t *uat, guint idx) {
	void	    *rec = UAT_INDEX_PTR(uat, idx);
	uat_field_t *f	 = uat->fields;
	guint	     colnum;
	GtkTreePath *path;
	GtkTreeIter  iter;

	if (! uat->rep) return;

	path = gtk_tree_path_new_from_indices(idx, -1);
	if (!path || !gtk_tree_model_get_iter(GTK_TREE_MODEL(uat->rep->list_store), &iter, path)) {
		return;
	}

	for ( colnum = 0; colnum < uat->ncols; colnum++ ) {
		gtk_list_store_set(uat->rep->list_store, &iter, colnum, fld_tostr(rec, &(f[colnum])), -1);
	}
}

static guint8 *unhexbytes(const char *si, guint len, guint *len_p, const char** err) {
	guint8	     *buf;
	guint8	     *p;
	const guint8 *s = (const guint8 *)si;
	guint	      i;

	if (len % 2) {
		*err = ep_strdup_printf("Uneven number of chars hex string %u \n'%s'", len, si);
		return NULL;
	}

	buf = (guint8 *)ep_alloc(len/2+1);
	p = buf;

	for (i = 0; i<len ; i += 2) {
		guint8 lo = s[i+1];
		guint8 hi = s[i];

		if (hi >= '0' && hi <= '9') {
			hi -= '0';
		} else if (hi >= 'a' && hi <= 'f') {
			hi -=  'a';
			hi += 0xa;
		} else if (hi >= 'A' && hi <= 'F') {
			hi -=  'A';
			hi += 0xa;
		} else {
			goto on_error;
		}

		if (lo >= '0' && lo <= '9') {
			lo -= '0';
		} else if (lo >= 'a' && lo <= 'f') {
			lo -=  'a';
			lo += 0xa;
		} else if (lo >= 'A' && lo <= 'F') {
			lo -=  'A';
			lo += 0xa;
		} else {
			goto on_error;
		}

		*(p++) = (hi*0x10) + lo;
	}

	len /= 2;

	if (len_p) *len_p = len;

	buf[len] = '\0';

	*err = NULL;
	return buf;

on_error:
	*err = "Error parsing hex string";
	return NULL;
}


static gboolean uat_dlg_cb(GtkWidget *win _U_, gpointer user_data) {
	struct _uat_dlg_data *dd    = (struct _uat_dlg_data *)user_data;
	guint		      ncols = dd->uat->ncols;
	uat_field_t          *f	    = dd->uat->fields;
	const char           *err   = NULL;
	guint		      colnum;

	for ( colnum = 0; colnum < ncols; colnum++ ) {
		void *e = g_ptr_array_index(dd->entries, colnum);
		const char *text = NULL;
		char *text_free = NULL;
		guint len = 0;

		switch(f[colnum].mode) {
			case PT_TXTMOD_FILENAME:
			case PT_TXTMOD_DIRECTORYNAME:
				text = text_free = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(e));
				if (text) {
					len = (unsigned) strlen(text);
				} else {
					text = "";
					len = 0;
				}
				break;

			case PT_TXTMOD_STRING:
				text = gtk_entry_get_text(GTK_ENTRY(e));
				len = (unsigned) strlen(text);
				break;
			case PT_TXTMOD_HEXBYTES: {
				text = gtk_entry_get_text(GTK_ENTRY(e));

				text = (const char *) unhexbytes(text, (guint) strlen(text), &len, &err);

				if (err) {
					err = ep_strdup_printf("error in field '%s': %s", f[colnum].title, err);
					goto on_failure;
				}

				break;
			}
			case PT_TXTMOD_ENUM: {
				gint idx = *(int*)e;
				text = (idx >= 0) ? ((const value_string *)(f[colnum].fld_data))[idx].strptr : "";
				len = (unsigned) strlen(text);
				break;
			}
			case PT_TXTMOD_NONE: break;
			default:
				g_assert_not_reached();
				return FALSE;
		}

		if (f[colnum].cb.chk) {
			if (! f[colnum].cb.chk(dd->rec, text, len, f[colnum].cbdata.chk, f[colnum].fld_data, &err)) {
				err = ep_strdup_printf("error in column '%s': %s", f[colnum].title, err);
				goto on_failure;
			}
		}

		f[colnum].cb.set(dd->rec, text, len, f[colnum].cbdata.set, f[colnum].fld_data);

		g_free(text_free);
	}

	if (dd->uat->update_cb) {
		dd->uat->update_cb(dd->rec, &err);

		if (err) {
			char *tmp;
			tmp = ep_strdup_printf("error updating record: %s", err);
			/* XXX bit of a hack to remove emem from dissectors, this can
			 * be removed as proper use of glib memory is propogated
			 * through the rest of the UAT code */
			g_free((char*)err);
			err = tmp;
			goto on_failure;
		}
	}

	if (dd->is_new) {
		void *rec_tmp = dd->rec;
		dd->rec = uat_add_record(dd->uat, dd->rec, TRUE);

		if (dd->uat->free_cb) {
			dd->uat->free_cb(rec_tmp);
		}

		g_free(rec_tmp);
	}

	dd->uat->changed = TRUE;

	set_buttons(dd->uat, dd->uat->rep ? dd->uat->rep->selected : -1);

	if (dd->is_new) {
		append_row(dd->uat, dd->uat->raw_data->len - 1 );
	} else {
		reset_row(dd->uat, dd->row);
	}

	g_ptr_array_free(dd->entries, TRUE);
	window_destroy(GTK_WIDGET(dd->win));

	if (dd->uat->rep)
		window_present(GTK_WIDGET(dd->uat->rep->window));

	while (dd->tobe_freed->len) g_free( g_ptr_array_remove_index_fast(dd->tobe_freed, dd->tobe_freed->len - 1 ) );

	g_free(dd);

	return TRUE;
on_failure:

	report_failure("%s", err);
	return FALSE;
}

static gboolean uat_cancel_dlg_cb(GtkWidget *win _U_, gpointer user_data) {
	struct _uat_dlg_data *dd = (struct _uat_dlg_data *)user_data;

	if (dd->uat->rep)
		window_present(GTK_WIDGET(dd->uat->rep->window));

	/* Reset the buttons */
	set_buttons(dd->uat, dd->uat->rep ? dd->uat->rep->selected : -1);

	if (dd->is_new) g_free(dd->rec);
	g_ptr_array_free(dd->entries, TRUE);
	window_destroy(GTK_WIDGET(dd->win));

	while (dd->tobe_freed->len) g_free( g_ptr_array_remove_index_fast(dd->tobe_freed, dd->tobe_freed->len - 1 ) );

	g_free(dd);

	return TRUE;
}

static void fld_combo_box_changed_cb(GtkComboBox *combo_box, gpointer user_data) {
	int *valptr = (int *)user_data;

	*valptr = gtk_combo_box_get_active(combo_box);
}

static void uat_edit_dialog(uat_t *uat, gint row, gboolean copy) {
	GtkWidget	     *win, *main_grid, *main_vb, *bbox, *bt_cancel, *bt_ok;
	struct _uat_dlg_data *dd = (struct _uat_dlg_data *)g_malloc(sizeof(struct _uat_dlg_data));
	uat_field_t	     *f	 = uat->fields;
	guint		      colnum;

	/* Only allow a single operation at a time, prevents bug 9129 */
	limit_buttons(uat);

	dd->entries = g_ptr_array_new();
	dd->win = dlg_conf_window_new(ep_strdup_printf("%s: %s", uat->name, (row == -1 ? "New" : "Edit")));
	dd->uat = uat;
	if (copy && row >= 0) {
	  dd->rec = g_malloc0(uat->record_size);
	  if (uat->copy_cb) {
	    uat->copy_cb (dd->rec, UAT_INDEX_PTR(uat, row), uat->record_size);
	  }
	  dd->is_new = TRUE;
	} else if (row >= 0) {
	  dd->rec = UAT_INDEX_PTR(uat, row);
	  dd->is_new = FALSE;
	} else {
	  dd->rec = g_malloc0(uat->record_size);
	  dd->is_new = TRUE;
	}
	dd->row = row;
	dd->tobe_freed = g_ptr_array_new();

	win = dd->win;

	gtk_window_set_resizable(GTK_WINDOW(win), FALSE);
	gtk_window_resize(GTK_WINDOW(win), 400, 30*(uat->ncols+2));

	main_vb = ws_gtk_box_new(GTK_ORIENTATION_VERTICAL, 5, FALSE);
	gtk_container_add(GTK_CONTAINER(win), main_vb);
	gtk_container_set_border_width(GTK_CONTAINER(main_vb), 6);

	main_grid = ws_gtk_grid_new();
	gtk_box_pack_start(GTK_BOX(main_vb), main_grid, FALSE, FALSE, 0);
	ws_gtk_grid_set_row_spacing(GTK_GRID(main_grid), 5);
	ws_gtk_grid_set_column_spacing(GTK_GRID(main_grid), 10);

	bbox = dlg_button_row_new(GTK_STOCK_CANCEL, GTK_STOCK_OK, NULL);
	gtk_box_pack_end(GTK_BOX(main_vb), bbox, FALSE, FALSE, 0);

	bt_ok = (GtkWidget *)g_object_get_data(G_OBJECT(bbox), GTK_STOCK_OK);
	g_signal_connect(bt_ok, "clicked", G_CALLBACK(uat_dlg_cb), dd);

	bt_cancel = (GtkWidget *)g_object_get_data(G_OBJECT(bbox), GTK_STOCK_CANCEL);
	g_signal_connect(bt_cancel, "clicked", G_CALLBACK(uat_cancel_dlg_cb), dd);
	window_set_cancel_button(win, bt_cancel, NULL);

	for ( colnum = 0; colnum < uat->ncols; colnum++ ) {
		GtkWidget *entry, *label, *event_box;
		char *text = fld_tostr(dd->rec, &(f[colnum]));

		event_box = gtk_event_box_new();

		label = gtk_label_new(ep_strdup_printf("%s:", f[colnum].title));
		if (f[colnum].desc != NULL)
			gtk_widget_set_tooltip_text(event_box, f[colnum].desc);

		gtk_misc_set_alignment(GTK_MISC(label), 1.0f, 0.5f);
		ws_gtk_grid_attach_defaults(GTK_GRID(main_grid), event_box, 0, colnum, 1, 1);
		gtk_container_add(GTK_CONTAINER(event_box), label);

		switch(f[colnum].mode) {
			case PT_TXTMOD_FILENAME:
			case PT_TXTMOD_DIRECTORYNAME:
				entry = gtk_file_chooser_button_new(f[colnum].desc,
								    (f[colnum].mode == PT_TXTMOD_FILENAME) ? GTK_FILE_CHOOSER_ACTION_OPEN : GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER);
				if (! dd->is_new || copy) {
					gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(entry), text);
				}
				g_ptr_array_add(dd->entries, entry);
				ws_gtk_grid_attach_defaults(GTK_GRID(main_grid), entry, 1, colnum, 1, 1);
				break;

			case PT_TXTMOD_NONE:
			case PT_TXTMOD_STRING:
			case PT_TXTMOD_HEXBYTES:
				entry = gtk_entry_new();
				if (! dd->is_new || copy) {
					gtk_entry_set_text(GTK_ENTRY(entry), text);
				}
				g_ptr_array_add(dd->entries, entry);
				ws_gtk_grid_attach_defaults(GTK_GRID(main_grid), entry, 1, colnum, 1, 1);
				if (f[colnum].mode != PT_TXTMOD_NONE)
					dlg_set_activate(entry, bt_ok);
				else
					gtk_editable_set_editable(GTK_EDITABLE(entry), FALSE);
				break;

			case PT_TXTMOD_ENUM: {
				GtkWidget *combo_box;
				int idx;
				const value_string *enum_vals = (const value_string *)f[colnum].fld_data;
				int *valptr = (int *)g_malloc(sizeof(int));	/* A place to store the index of the    */
									/*  "active" fld_data array entry       */
									/* -1 means "nothing selected (active)" */
				combo_box = gtk_combo_box_text_new();
				*valptr = -1;
				for (idx = 0; enum_vals[idx].strptr != NULL; idx++) {
					const char *str = enum_vals[idx].strptr;
					 gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT(combo_box), str);

					if ( g_str_equal(str, text) ) {
						*valptr = idx;
					}
				}

				g_ptr_array_add(dd->entries, valptr);
				g_ptr_array_add(dd->tobe_freed, valptr);

				if (*valptr != -1)
					gtk_combo_box_set_active(GTK_COMBO_BOX(combo_box), *valptr);

				g_signal_connect(combo_box, "changed", G_CALLBACK(fld_combo_box_changed_cb), valptr);
				ws_gtk_grid_attach_defaults(GTK_GRID(main_grid), combo_box, 1, colnum, 1, 1);

				break;
			}
			default:
				g_assert_not_reached();
				return;
		}
	}

	gtk_widget_grab_default(bt_ok);
	gtk_widget_show_all(win);
}

struct _uat_del {
	GtkWidget *win;
	uat_t	  *uat;
	gint	   idx;
};

static void uat_del_cb(GtkButton *button _U_, gpointer u) {
	struct _uat_del *ud = (struct _uat_del *)u;
	GtkTreeIter	 iter;
	GtkTreePath	*path;

	uat_remove_record_idx(ud->uat, ud->idx);

	if (ud->uat->rep) {
		path = gtk_tree_path_new_from_indices(ud->idx, -1);
		if (path && gtk_tree_model_get_iter(GTK_TREE_MODEL(ud->uat->rep->list_store), &iter, path)) {
			gtk_list_store_remove(ud->uat->rep->list_store, &iter);
		}
	}

	ud->uat->changed = TRUE;
	set_buttons(ud->uat, -1);

	window_destroy(GTK_WIDGET(ud->win));

	if (ud->uat->rep)
		window_present(GTK_WIDGET(ud->uat->rep->window));

	g_free(ud);
}

static void uat_cancel_del_cb(GtkButton *button _U_, gpointer u) {
	struct _uat_del *ud = (struct _uat_del *)u;

	window_destroy(GTK_WIDGET(ud->win));

	/* Reset the buttons */
	set_buttons(ud->uat, ud->uat->rep ? ud->uat->rep->selected : -1);

	if (ud->uat->rep)
		window_present(GTK_WIDGET(ud->uat->rep->window));
	g_free(ud);
}

static void uat_del_dlg(uat_t *uat, int idx) {
	GtkWidget	*win, *main_grid, *main_vb, *bbox, *bt_cancel, *bt_ok;
	uat_field_t	*f   = uat->fields;
	guint		 colnum;
	void		*rec = UAT_INDEX_PTR(uat, idx);

	struct _uat_del *ud  = (struct _uat_del *)g_malloc(sizeof(struct _uat_del));

	/* Only allow a single operation at a time, prevents bug 9129 */
	limit_buttons(uat);

	ud->uat = uat;
	ud->idx = idx;
	ud->win = win = dlg_conf_window_new(ep_strdup_printf("%s: Confirm Delete", uat->name));

	gtk_window_set_resizable(GTK_WINDOW(win), FALSE);
	gtk_window_resize(GTK_WINDOW(win), 400, 25*(uat->ncols+2));

	main_vb = ws_gtk_box_new(GTK_ORIENTATION_VERTICAL, 5, FALSE);
	gtk_container_add(GTK_CONTAINER(win), main_vb);
	gtk_container_set_border_width(GTK_CONTAINER(main_vb), 6);

	main_grid = ws_gtk_grid_new();
	gtk_box_pack_start(GTK_BOX(main_vb), main_grid, FALSE, FALSE, 0);
	ws_gtk_grid_set_row_spacing(GTK_GRID(main_grid), 10);
	ws_gtk_grid_set_column_spacing(GTK_GRID(main_grid), 15);

	for ( colnum = 0; colnum < uat->ncols; colnum++ ) {
		GtkWidget *label;
		char *text = fld_tostr(rec, &(f[colnum]));

		label = gtk_label_new(ep_strdup_printf("%s:", f[colnum].title));
		gtk_misc_set_alignment(GTK_MISC(label), 1.0f, 0.5f);
		ws_gtk_grid_attach_defaults(GTK_GRID(main_grid), label, 0, colnum, 1, 1);

		label = gtk_label_new(text);
		gtk_misc_set_alignment(GTK_MISC(label), 1.0f, 0.5f);
		ws_gtk_grid_attach_defaults(GTK_GRID(main_grid), label, 1, colnum, 1, 1);
	}

	bbox = dlg_button_row_new(GTK_STOCK_CANCEL, GTK_STOCK_DELETE, NULL);
	gtk_box_pack_start(GTK_BOX(main_vb), bbox, FALSE, FALSE, 0);

	bt_ok = (GtkWidget *)g_object_get_data(G_OBJECT(bbox), GTK_STOCK_DELETE);
	g_signal_connect(bt_ok, "clicked", G_CALLBACK(uat_del_cb), ud);

	bt_cancel = (GtkWidget *)g_object_get_data(G_OBJECT(bbox), GTK_STOCK_CANCEL);
	g_signal_connect(bt_cancel, "clicked", G_CALLBACK(uat_cancel_del_cb), ud);
	window_set_cancel_button( win, bt_cancel, NULL);

	gtk_widget_show_all(win);
}

static void uat_new_cb(GtkButton *button _U_, gpointer u) {
	uat_t *uat = (uat_t *)u;

	if (! uat->rep) return;

	uat_edit_dialog(uat, -1, FALSE);
}

static void uat_edit_cb(GtkWidget *button _U_, gpointer u) {
	uat_t *uat = (uat_t *)u;

	if (! uat->rep) return;

	uat_edit_dialog(uat, uat->rep->selected, FALSE);
}

static void uat_copy_cb(GtkWidget *button _U_, gpointer u) {
	uat_t *uat = (uat_t *)u;

	if (! uat->rep) return;

	uat_edit_dialog(uat, uat->rep->selected, TRUE);
}

static void uat_double_click_cb(GtkWidget *tv, GtkTreePath *path _U_, GtkTreeViewColumn *column _U_, gpointer u) {
	uat_edit_cb(tv, u);
}

static void uat_delete_cb(GtkButton *button _U_, gpointer u) {
	uat_t *uat = (uat_t *)u;

	if (! uat->rep) return;

	uat_del_dlg(uat, uat->rep->selected);
}

static gboolean uat_window_delete_event_cb(GtkWindow *w _U_, GdkEvent *e _U_, gpointer u) {
	uat_t *uat = (uat_t *)u;

	if (uat->rep) {
		void *rep = uat->rep;

		g_signal_handlers_disconnect_by_func(uat->rep->window, uat_window_delete_event_cb, uat);
		g_signal_handlers_disconnect_by_func(uat->rep->window, unsaved_dialog, uat);

		gtk_widget_destroy(uat->rep->window);

		uat->rep = NULL;
		g_free(rep);
	}
	return TRUE;
}

static void uat_up_cb(GtkButton *button _U_, gpointer u) {
	uat_t *uat = (uat_t *)u;
	gint   row = uat->rep->selected;

	g_assert(row > 0);

	uat_swap(uat, row, row-1);
	tree_view_list_store_move_selection(uat->rep->list, TRUE);

	uat->changed = TRUE;

	row -= 1;
	uat->rep->selected = row;
	set_buttons(uat, row);
}

static void uat_down_cb(GtkButton *button _U_, gpointer u) {
	uat_t *uat = (uat_t *)u;
	gint   row = uat->rep->selected;

	g_assert(row >= 0 && (guint) row < uat->raw_data->len - 1);

	uat_swap(uat, row, row+1);
	tree_view_list_store_move_selection(uat->rep->list, FALSE);

	uat->changed = TRUE;

	row += 1;
	uat->rep->selected = row;
	set_buttons(uat, row);
}

static void uat_apply_changes(uat_t *uat) {
	if (uat->flags & UAT_AFFECTS_FIELDS) {
		/* Recreate list with new fields and redissect packets */
		packet_list_recreate ();
	} else {
		if (uat->flags & UAT_AFFECTS_DISSECTION) {
			/* Just redissect packets if we have any */
			if (cfile.state != FILE_CLOSED) {
				redissect_packets ();
				redissect_all_packet_windows ();
			}
		}
	}
}

static void uat_cancel_cb(GtkWidget *button _U_, gpointer u) {
	uat_t *uat = (uat_t *)u;
	const gchar *err = NULL;

	if (uat->changed) {
		uat_clear(uat);
		uat_load(uat, &err);

		if (err) {
			report_failure("Error while loading %s: %s", uat->name, err);
		}

		uat_apply_changes (uat);
	}

	g_signal_handlers_disconnect_by_func(uat->rep->window, uat_window_delete_event_cb, uat);
	g_signal_handlers_disconnect_by_func(uat->rep->window, unsaved_dialog, uat);
	gtk_widget_destroy(uat->rep->window);
	g_free(uat->rep);
	uat->rep = NULL;
}

static void uat_apply_cb(GtkButton *button _U_, gpointer u) {
	uat_t *uat = (uat_t *)u;

	if (uat->changed) {
		if (uat->post_update_cb) uat->post_update_cb();
		uat_apply_changes (uat);
	}
}

static void uat_ok_cb(GtkButton *button _U_, gpointer u) {
	uat_t *uat = (uat_t *)u;
	const gchar *err = NULL;

	if (uat->changed) {
		uat_save(uat, &err);

		if (err) {
			report_failure("Error while saving %s: %s", uat->name, err);
		}

		if (uat->post_update_cb) uat->post_update_cb();
		uat_apply_changes (uat);
	}

	g_signal_handlers_disconnect_by_func(uat->rep->window, uat_window_delete_event_cb, uat);
	g_signal_handlers_disconnect_by_func(uat->rep->window, unsaved_dialog, uat);
	gtk_widget_destroy(uat->rep->window);
	g_free(uat->rep);
	uat->rep = NULL;
}

static void uat_clear_cb(GtkButton *button _U_, gpointer u) {
	uat_t *uat = (uat_t *)u;

	gtk_list_store_clear(uat->rep->list_store);
	uat_clear(uat);
	uat->changed = TRUE;
}

static void uat_refresh_cb(GtkButton *button _U_, gpointer u) {
	uat_t *uat = (uat_t *)u;
	const gchar *err = NULL;
	guint  i;

	uat_clear_cb(button, u);

	uat->from_global = TRUE;
	uat_load(uat, &err);
	uat->from_global = FALSE;
	uat->changed = TRUE;

	if (err) {
		report_failure("Error while loading %s: %s", uat->name, err);
	}

	for (i = 0 ; i < uat->raw_data->len; i++) {
		append_row(uat, i);
	}
}


static void remember_selected_row(GtkWidget *w _U_, gpointer u) {
	uat_t *uat = (uat_t *)u;
	gint   row;

	row = tree_view_list_store_get_selected_row(uat->rep->list);
	uat->rep->selected = row;

	gtk_widget_set_sensitive (uat->rep->bt_edit, TRUE);
	gtk_widget_set_sensitive (uat->rep->bt_copy, uat->copy_cb ? TRUE : FALSE);
	gtk_widget_set_sensitive(uat->rep->bt_delete, TRUE);

	set_buttons(uat, row);
}

static void uat_yessave_cb(GtkWindow *w _U_, void *u) {
	uat_t *uat = (uat_t *)u;
	const gchar *err = NULL;

	window_delete_event_cb(uat->rep->unsaved_window, NULL, NULL);

	uat_save(uat, &err);

	if (err) {
		report_failure("Error while saving %s: %s", uat->name, err);
	}

	g_signal_handlers_disconnect_by_func(uat->rep->window, uat_window_delete_event_cb, uat);
	g_signal_handlers_disconnect_by_func(uat->rep->window, unsaved_dialog, uat);
	window_destroy(uat->rep->window);

	g_free(uat->rep);
	uat->rep = NULL;
}


static void uat_nosave_cb(GtkWindow *w _U_, void *u) {
	uat_t *uat = (uat_t *)u;

	window_delete_event_cb(uat->rep->unsaved_window, NULL, NULL);
	g_signal_handlers_disconnect_by_func(uat->rep->window, uat_window_delete_event_cb, uat);
	g_signal_handlers_disconnect_by_func(uat->rep->window, unsaved_dialog, uat);
	window_destroy(uat->rep->window);

	g_free(uat->rep);
	uat->rep = NULL;
}

static gboolean unsaved_dialog(GtkWindow *w _U_, GdkEvent *e _U_, gpointer u) {
	GtkWidget *win, *vbox, *label, *bbox;
	GtkWidget *yes_bt, *no_bt;
	gchar	  *message;
	uat_t	  *uat = (uat_t *)u;

	if (uat->rep->unsaved_window) {
		window_present(uat->rep->unsaved_window);
		return TRUE;
	}

	uat->rep->unsaved_window = win = dlg_conf_window_new("Discard Changes?");
	gtk_window_set_default_size(GTK_WINDOW(win), 360, 140);

	gtk_window_set_position(GTK_WINDOW(win), GTK_WIN_POS_CENTER_ON_PARENT);
	vbox = ws_gtk_box_new(GTK_ORIENTATION_VERTICAL, 12, FALSE);
	gtk_container_set_border_width(GTK_CONTAINER(vbox), 6);
	gtk_container_add(GTK_CONTAINER(win), vbox);

	message  = ep_strdup_printf("Changes to '%s' are not being saved!\n"
		"Do you want to save '%s'?", uat->name, uat->name);

	label = gtk_label_new(message);

	bbox = dlg_button_row_new(GTK_STOCK_YES, GTK_STOCK_NO, NULL);

	yes_bt = (GtkWidget *)g_object_get_data(G_OBJECT(bbox), GTK_STOCK_YES);
	no_bt = (GtkWidget *)g_object_get_data(G_OBJECT(bbox), GTK_STOCK_NO);

	g_signal_connect(no_bt, "clicked", G_CALLBACK(uat_nosave_cb), uat);
	g_signal_connect(yes_bt, "clicked", G_CALLBACK(uat_yessave_cb), uat);

	gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
	gtk_box_pack_end(GTK_BOX(vbox), bbox, FALSE, FALSE, 0);

	gtk_widget_show_all(win);
	window_present(win);

	return TRUE;
}

static void uat_help_cb(GtkWidget *w _U_, gpointer u) {
	gchar *help_page, *url;

	help_page = g_strdup_printf("%s.html", ((uat_t*)u)->help);
	url = user_guide_url(help_page);
	if (url) {
		browser_open_url(url);
	}
	g_free(help_page);
	g_free(url);
}

static GtkWidget *uat_window(void *u) {
	uat_t		  *uat = (uat_t *)u;
	uat_field_t	  *f   = uat->fields;
	uat_rep_t	  *rep;
	guint		   i;
	guint		   colnum;
	GType		  *col_types;
	GtkWidget	  *hbox, *vbox, *move_hbox, *edit_hbox, *refresh_hbox;
	GtkTreeViewColumn *column;
	GtkCellRenderer	  *renderer;
	GtkTreeSelection  *selection;
	gchar		  *global_fname;
	gboolean	   global_file_exists;

	if (uat->rep) {
		window_present(uat->rep->window);
		return uat->rep->window;
	} else {
		uat->rep = rep = (uat_rep_t *)g_malloc0(sizeof(uat_rep_t));
	}

	global_fname = get_datafile_path(uat->filename);
	global_file_exists = file_exists(global_fname);
	g_free (global_fname);

	rep->window = dlg_conf_window_new(uat->name);

	gtk_window_set_default_size(GTK_WINDOW(rep->window), 720, 512);
	gtk_window_set_position(GTK_WINDOW(rep->window), GTK_WIN_POS_CENTER_ON_PARENT);

	gtk_container_set_border_width(GTK_CONTAINER(rep->window), 6);

	rep->vbox = ws_gtk_box_new(GTK_ORIENTATION_VERTICAL, 12, FALSE);
	gtk_container_set_border_width(GTK_CONTAINER(rep->vbox), 6);
	gtk_container_add(GTK_CONTAINER(rep->window), rep->vbox);

	hbox = ws_gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 12, FALSE);
	gtk_container_set_border_width(GTK_CONTAINER(hbox), 6);
	gtk_box_pack_start(GTK_BOX(rep->vbox), hbox, TRUE, TRUE, 0);

	vbox = ws_gtk_box_new(GTK_ORIENTATION_VERTICAL, 12, FALSE);
	gtk_container_set_border_width(GTK_CONTAINER(vbox), 6);
	gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);

	rep->scrolledwindow = scrolled_window_new(NULL, NULL);
	gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(rep->scrolledwindow), GTK_SHADOW_IN);

	col_types = (GType *)g_malloc(sizeof(GType)  *uat->ncols);
	for ( colnum = 0; colnum < uat->ncols; colnum++ ) {
		col_types[colnum] = G_TYPE_STRING;
	}
	rep->list_store = gtk_list_store_newv(uat->ncols, col_types);
	g_free(col_types);

	rep->list = GTK_TREE_VIEW(tree_view_new(GTK_TREE_MODEL(rep->list_store))); /*uat->ncols */
	gtk_container_add(GTK_CONTAINER(rep->scrolledwindow), GTK_WIDGET(rep->list));
	gtk_box_pack_start(GTK_BOX(hbox), rep->scrolledwindow, TRUE, TRUE, 0);

	selection = gtk_tree_view_get_selection(rep->list);
	gtk_tree_selection_set_mode(selection, GTK_SELECTION_SINGLE);
	rep->selected = -1;

	for ( colnum = 0; colnum < uat->ncols; colnum++ ) {
		renderer = gtk_cell_renderer_text_new();
		column = gtk_tree_view_column_new_with_attributes(f[colnum].title,
			renderer, "text", colnum, NULL);
		gtk_tree_view_column_set_resizable (column, TRUE);
		gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
		gtk_tree_view_append_column (rep->list, column);
		if (f[colnum].desc != NULL)
			gtk_widget_set_tooltip_text(gtk_tree_view_column_get_button(column), f[colnum].desc);
	}

	for ( i = 0 ; i < uat->raw_data->len; i++ ) {
		append_row(uat, i);
	}

	if (uat->help) {
		GtkWidget *help_btn;
		rep->bbox = dlg_button_row_new(GTK_STOCK_HELP, GTK_STOCK_OK, GTK_STOCK_APPLY, GTK_STOCK_CANCEL, NULL);
		help_btn = (GtkWidget *)g_object_get_data(G_OBJECT(rep->bbox), GTK_STOCK_HELP);
		g_signal_connect(help_btn, "clicked", G_CALLBACK(uat_help_cb), uat);
	} else {

		rep->bbox = dlg_button_row_new(GTK_STOCK_OK, GTK_STOCK_APPLY, GTK_STOCK_CANCEL, NULL);
	}

	move_hbox = gtk_button_box_new(GTK_ORIENTATION_VERTICAL);
	gtk_box_pack_start(GTK_BOX(vbox), move_hbox, TRUE, FALSE, 0);

	edit_hbox = gtk_button_box_new(GTK_ORIENTATION_VERTICAL);
	gtk_box_pack_start(GTK_BOX(vbox), edit_hbox, TRUE, FALSE, 0);

	refresh_hbox = gtk_button_box_new(GTK_ORIENTATION_VERTICAL);
	gtk_box_pack_end(GTK_BOX(vbox), refresh_hbox, TRUE, FALSE, 0);


	rep->bt_up = ws_gtk_button_new_from_stock(GTK_STOCK_GO_UP);
	gtk_widget_set_tooltip_text(rep->bt_up, "Move selected entry up");

	rep->bt_down = ws_gtk_button_new_from_stock(GTK_STOCK_GO_DOWN);
	gtk_widget_set_tooltip_text(rep->bt_down, "Move selected entry down");

	gtk_box_pack_start(GTK_BOX(move_hbox), rep->bt_up, TRUE, FALSE, 5);
	gtk_box_pack_start(GTK_BOX(move_hbox), rep->bt_down, TRUE, FALSE, 5);


	rep->bt_new = ws_gtk_button_new_from_stock(GTK_STOCK_NEW);
	gtk_widget_set_tooltip_text(rep->bt_new, "Create a new entry");

	rep->bt_edit = ws_gtk_button_new_from_stock(WIRESHARK_STOCK_EDIT);
	gtk_widget_set_tooltip_text(rep->bt_edit, "Edit selected entry");

	rep->bt_copy = ws_gtk_button_new_from_stock(GTK_STOCK_COPY);
	gtk_widget_set_tooltip_text(rep->bt_copy, "Copy selected entry");

	rep->bt_delete = ws_gtk_button_new_from_stock(GTK_STOCK_DELETE);
	gtk_widget_set_tooltip_text(rep->bt_delete, "Delete selected entry");

	gtk_box_pack_end(GTK_BOX(edit_hbox), rep->bt_new, TRUE, FALSE, 5);
	gtk_box_pack_end(GTK_BOX(edit_hbox), rep->bt_edit, TRUE, FALSE, 5);
	gtk_box_pack_end(GTK_BOX(edit_hbox), rep->bt_copy, TRUE, FALSE, 5);
	gtk_box_pack_end(GTK_BOX(edit_hbox), rep->bt_delete, TRUE, FALSE, 5);

	rep->bt_refresh = ws_gtk_button_new_from_stock(GTK_STOCK_REFRESH);
	gtk_widget_set_tooltip_text(rep->bt_refresh, "Refresh from system defaults");

	rep->bt_clear = ws_gtk_button_new_from_stock(GTK_STOCK_CLEAR);
	gtk_widget_set_tooltip_text(rep->bt_clear, "Delete all entries");

	gtk_box_pack_end(GTK_BOX(refresh_hbox), rep->bt_refresh, TRUE, FALSE, 5);
	gtk_box_pack_end(GTK_BOX(refresh_hbox), rep->bt_clear, TRUE, FALSE, 5);


	rep->bt_apply = (GtkWidget *)g_object_get_data(G_OBJECT(rep->bbox), GTK_STOCK_APPLY);
	rep->bt_cancel = (GtkWidget *)g_object_get_data(G_OBJECT(rep->bbox), GTK_STOCK_CANCEL);
	rep->bt_ok = (GtkWidget *)g_object_get_data(G_OBJECT(rep->bbox), GTK_STOCK_OK);

	gtk_box_pack_end(GTK_BOX(rep->vbox), rep->bbox, FALSE, FALSE, 0);

	gtk_widget_set_sensitive (rep->bt_up, FALSE);
	gtk_widget_set_sensitive (rep->bt_down, FALSE);
	gtk_widget_set_sensitive (rep->bt_edit, FALSE);
	gtk_widget_set_sensitive (rep->bt_copy, FALSE);
	gtk_widget_set_sensitive (rep->bt_delete, FALSE);
	gtk_widget_set_sensitive (rep->bt_refresh, global_file_exists);

	g_signal_connect(rep->list, "row-activated", G_CALLBACK(uat_double_click_cb), uat);
	g_signal_connect(selection, "changed", G_CALLBACK(remember_selected_row), uat);


	g_signal_connect(rep->bt_new, "clicked", G_CALLBACK(uat_new_cb), uat);
	g_signal_connect(rep->bt_edit, "clicked", G_CALLBACK(uat_edit_cb), uat);
	g_signal_connect(rep->bt_copy, "clicked", G_CALLBACK(uat_copy_cb), uat);
	g_signal_connect(rep->bt_delete, "clicked", G_CALLBACK(uat_delete_cb), uat);

	g_signal_connect(rep->bt_refresh, "clicked", G_CALLBACK(uat_refresh_cb), uat);
	g_signal_connect(rep->bt_clear, "clicked", G_CALLBACK(uat_clear_cb), uat);

	g_signal_connect(rep->bt_up, "clicked", G_CALLBACK(uat_up_cb), uat);
	g_signal_connect(rep->bt_down, "clicked", G_CALLBACK(uat_down_cb), uat);

	g_signal_connect(rep->bt_apply, "clicked", G_CALLBACK(uat_apply_cb), uat);
	g_signal_connect(rep->bt_cancel, "clicked", G_CALLBACK(uat_cancel_cb), uat);
	g_signal_connect(rep->bt_ok, "clicked", G_CALLBACK(uat_ok_cb), uat);

	window_set_cancel_button(rep->window, rep->bt_cancel, NULL);  /*set esc to activate cancel button */

	if (uat->changed) {
		g_signal_connect(GTK_WINDOW(rep->window), "delete_event", G_CALLBACK(unsaved_dialog), uat);
		g_signal_connect(GTK_WINDOW(rep->window), "destroy", G_CALLBACK(unsaved_dialog), uat);
	} else {
		g_signal_connect(GTK_WINDOW(rep->window), "delete_event", G_CALLBACK(uat_window_delete_event_cb), uat);
		g_signal_connect(GTK_WINDOW(rep->window), "destroy", G_CALLBACK(uat_window_delete_event_cb), uat);
	}

	gtk_widget_grab_focus(GTK_WIDGET(rep->list));

	gtk_widget_show_all(rep->window);
	window_present(rep->window);

	return rep->window;
}

void uat_window_cb(GtkWidget *u _U_, void *uat) {
	uat_window(uat);
}