/*
 * gedit-io-error-info-bar.c
 * This file is part of gedit
 *
 * Copyright (C) 2005 - Paolo Maggi
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */

/*
 * Verbose error reporting for file I/O operations (load, save, revert, create)
 */

#include "gedit-io-error-info-bar.h"

#include <errno.h>
#include <string.h>
#include <glib/gi18n.h>
#include <gio/gio.h>

#include "gedit-encodings-combo-box.h"
#include "gedit-settings.h"
#include "gedit-utils.h"
#include "gedit-document.h"

#define MAX_URI_IN_DIALOG_LENGTH 50

static gboolean
is_recoverable_error (const GError *error)
{
	gboolean is_recoverable = FALSE;

	if (error->domain == G_IO_ERROR)
	{
		switch (error->code)
		{
			case G_IO_ERROR_PERMISSION_DENIED:
			case G_IO_ERROR_NOT_FOUND:
			case G_IO_ERROR_HOST_NOT_FOUND:
			case G_IO_ERROR_TIMED_OUT:
			case G_IO_ERROR_NOT_MOUNTABLE_FILE:
			case G_IO_ERROR_NOT_MOUNTED:
			case G_IO_ERROR_BUSY:
				is_recoverable = TRUE;
				break;
			default:
				break;
		}
	}

	return is_recoverable;
}

static gboolean
is_gio_error (const GError *error,
	      gint          code)
{
	return error->domain == G_IO_ERROR && error->code == code;
}

static void
set_contents (GtkWidget *area,
	      GtkWidget *contents)
{
	GtkWidget *content_area;

	content_area = gtk_info_bar_get_content_area (GTK_INFO_BAR (area));
	gtk_container_add (GTK_CONTAINER (content_area), contents);
}

static void
set_info_bar_text (GtkWidget   *info_bar,
		   const gchar *primary_text,
		   const gchar *secondary_text)
{
	GtkWidget *vbox;
	gchar *primary_markup;
	gchar *secondary_markup;
	GtkWidget *primary_label;
	GtkWidget *secondary_label;

	vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);

	primary_markup = g_strdup_printf ("<b>%s</b>", primary_text);
	primary_label = gtk_label_new (primary_markup);
	g_free (primary_markup);
	gtk_box_pack_start (GTK_BOX (vbox), primary_label, TRUE, TRUE, 0);
	gtk_label_set_use_markup (GTK_LABEL (primary_label), TRUE);
	gtk_label_set_line_wrap (GTK_LABEL (primary_label), TRUE);
	gtk_widget_set_halign (primary_label, GTK_ALIGN_START);
	gtk_widget_set_can_focus (primary_label, TRUE);
	gtk_label_set_selectable (GTK_LABEL (primary_label), TRUE);

	if (secondary_text != NULL)
	{
		secondary_markup = g_strdup_printf ("<small>%s</small>",
						    secondary_text);
		secondary_label = gtk_label_new (secondary_markup);
		g_free (secondary_markup);
		gtk_box_pack_start (GTK_BOX (vbox), secondary_label, TRUE, TRUE, 0);
		gtk_widget_set_can_focus (secondary_label, TRUE);
		gtk_label_set_use_markup (GTK_LABEL (secondary_label), TRUE);
		gtk_label_set_line_wrap (GTK_LABEL (secondary_label), TRUE);
		gtk_label_set_selectable (GTK_LABEL (secondary_label), TRUE);
		gtk_widget_set_halign (secondary_label, GTK_ALIGN_START);
	}

	gtk_widget_show_all (vbox);
	set_contents (info_bar, vbox);
}

static GtkWidget *
create_io_loading_error_info_bar (const gchar *primary_text,
				  const gchar *secondary_text,
				  gboolean     recoverable_error)
{
	GtkWidget *info_bar;

	info_bar = gtk_info_bar_new_with_buttons (_("_Cancel"),
						  GTK_RESPONSE_CANCEL,
						  NULL);
	gtk_info_bar_set_message_type (GTK_INFO_BAR (info_bar),
				       GTK_MESSAGE_ERROR);

	set_info_bar_text (info_bar,
			   primary_text,
			   secondary_text);

	if (recoverable_error)
	{
		gtk_info_bar_add_button (GTK_INFO_BAR (info_bar),
					 _("_Retry"),
					 GTK_RESPONSE_OK);
	}

	return info_bar;
}

static gboolean
parse_gio_error (gint          code,
	         gchar       **error_message,
	         gchar       **message_details,
	         GFile        *location,
	         const gchar  *uri_for_display)
{
	gboolean ret = TRUE;

	switch (code)
	{
		case G_IO_ERROR_NOT_FOUND:
		case G_IO_ERROR_NOT_DIRECTORY:
			*error_message = g_strdup_printf (_("Could not find the file “%s”."),
							  uri_for_display);
			*message_details = g_strdup (_("Please check that you typed the "
					      	       "location correctly and try again."));
			break;

		case G_IO_ERROR_NOT_SUPPORTED:
			{
				gchar *scheme_string = NULL;
				gchar *scheme_markup;

				if (location)
				{
					scheme_string = g_file_get_uri_scheme (location);
				}

				if ((scheme_string != NULL) && g_utf8_validate (scheme_string, -1, NULL))
				{
					scheme_markup = g_markup_escape_text (scheme_string, -1);

					/* Translators: %s is a URI scheme (like for example http:, ftp:, etc.) */
					*message_details = g_strdup_printf (_("Unable to handle “%s:” locations."),
									   scheme_markup);
					g_free (scheme_markup);
				}
				else
				{
					*message_details = g_strdup (_("Unable to handle this location."));
				}

				g_free (scheme_string);
			}
			break;

		case G_IO_ERROR_NOT_MOUNTABLE_FILE:
		case G_IO_ERROR_NOT_MOUNTED:
			*message_details = g_strdup (_("The location of the file cannot be accessed."));
			break;

		case G_IO_ERROR_IS_DIRECTORY:
			*error_message = g_strdup_printf (_("“%s” is a directory."),
							 uri_for_display);
			*message_details = g_strdup (_("Please check that you typed the "
						      "location correctly and try again."));
			break;

		case G_IO_ERROR_INVALID_FILENAME:
			*error_message = g_strdup_printf (_("“%s” is not a valid location."),
							 uri_for_display);
			*message_details = g_strdup (_("Please check that you typed the "
						      "location correctly and try again."));
			break;

		case G_IO_ERROR_HOST_NOT_FOUND:
			/* This case can be hit for user-typed strings like "foo" due to
			 * the code that guesses web addresses when there's no initial "/".
			 * But this case is also hit for legitimate web addresses when
			 * the proxy is set up wrong.
			 */
			{
				gchar *hn = NULL;
				gchar *uri = NULL;

				if (location)
				{
					uri = g_file_get_uri (location);
				}

				if (uri && gedit_utils_decode_uri (uri, NULL, NULL, &hn, NULL, NULL))
				{
					if (hn != NULL)
					{
						gchar *host_markup;
						gchar *host_name;

						host_name = gedit_utils_make_valid_utf8 (hn);
						g_free (hn);

						host_markup = g_markup_escape_text (host_name, -1);
						g_free (host_name);

						/* Translators: %s is a host name */
						*message_details = g_strdup_printf (
							_("Host “%s” could not be found. "
							"Please check that your proxy settings "
							"are correct and try again."),
							host_markup);

						g_free (host_markup);
					}
				}

				g_free (uri);

				if (!*message_details)
				{
					/* use the same string as INVALID_HOST */
					*message_details = g_strdup_printf (
						_("Hostname was invalid. "
						  "Please check that you typed the location "
						  "correctly and try again."));
				}
			}
			break;

		case G_IO_ERROR_NOT_REGULAR_FILE:
			*message_details = g_strdup_printf (_("“%s” is not a regular file."),
							   uri_for_display);
			break;

		case G_IO_ERROR_TIMED_OUT:
			*message_details = g_strdup (_("Connection timed out. Please try again."));
			break;

		default:
			ret = FALSE;
			break;
	}

	return ret;
}

static void
parse_error (const GError *error,
	     gchar       **error_message,
	     gchar       **message_details,
	     GFile        *location,
	     const gchar  *uri_for_display)
{
	gboolean ret = FALSE;

	if (error->domain == G_IO_ERROR)
	{
		ret = parse_gio_error (error->code,
				       error_message,
				       message_details,
				       location,
				       uri_for_display);
	}

	if (!ret)
	{
		g_warning ("Hit unhandled case %d (%s) in %s.",
			   error->code, error->message, G_STRFUNC);
		*message_details = g_strdup_printf (_("Unexpected error: %s"),
						    error->message);
	}
}

GtkWidget *
gedit_unrecoverable_reverting_error_info_bar_new (GFile        *location,
						  const GError *error)
{
	gchar *error_message = NULL;
	gchar *message_details = NULL;
	gchar *full_formatted_uri;
	gchar *uri_for_display;
	gchar *temp_uri_for_display;
	GtkWidget *info_bar;

	g_return_val_if_fail (G_IS_FILE (location), NULL);
	g_return_val_if_fail (error != NULL, NULL);
	g_return_val_if_fail (error->domain == GTK_SOURCE_FILE_LOADER_ERROR ||
			      error->domain == G_IO_ERROR, NULL);

	full_formatted_uri = g_file_get_parse_name (location);

	/* Truncate the URI so it doesn't get insanely wide. Note that even
	 * though the dialog uses wrapped text, if the URI doesn't contain
	 * white space then the text-wrapping code is too stupid to wrap it.
	 */
	temp_uri_for_display = gedit_utils_str_middle_truncate (full_formatted_uri,
								MAX_URI_IN_DIALOG_LENGTH);
	g_free (full_formatted_uri);

	uri_for_display = g_markup_escape_text (temp_uri_for_display, -1);
	g_free (temp_uri_for_display);

	if (is_gio_error (error, G_IO_ERROR_NOT_FOUND))
	{
		message_details = g_strdup (_("Cannot find the requested file. "
					      "Perhaps it has recently been deleted."));
	}
	else
	{
		parse_error (error, &error_message, &message_details, location, uri_for_display);
	}

	if (error_message == NULL)
	{
		error_message = g_strdup_printf (_("Could not revert the file “%s”."),
						 uri_for_display);
	}

	info_bar = create_io_loading_error_info_bar (error_message,
						     message_details,
						     FALSE);

	g_free (uri_for_display);
	g_free (error_message);
	g_free (message_details);

	return info_bar;
}

static void
create_combo_box (GtkWidget *info_bar,
		  GtkWidget *vbox)
{
	GtkWidget *hbox;
	GtkWidget *label;
	GtkWidget *menu;
	gchar *label_markup;

	hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);

	label_markup = g_strdup_printf ("<small>%s</small>",
					_("Ch_aracter Encoding:"));
	label = gtk_label_new_with_mnemonic (label_markup);
	g_free (label_markup);
	gtk_label_set_use_markup (GTK_LABEL (label), TRUE);
	menu = gedit_encodings_combo_box_new (TRUE);
	g_object_set_data (G_OBJECT (info_bar),
			   "gedit-info-bar-encoding-menu",
			   menu);

	gtk_label_set_mnemonic_widget (GTK_LABEL (label), menu);
	gtk_box_pack_start (GTK_BOX (hbox),
			    label,
			    FALSE,
			    FALSE,
			    0);

	gtk_box_pack_start (GTK_BOX (hbox),
			    menu,
			    FALSE,
			    FALSE,
			    0);

	gtk_widget_show_all (hbox);
	gtk_box_pack_start (GTK_BOX (vbox), hbox, TRUE, TRUE, 0);
}

GtkWidget *
gedit_network_unavailable_info_bar_new (GFile *location)
{
	GtkWidget *info_bar;
	GtkWidget *hbox_content;
	GtkWidget *vbox;
	gchar *primary_markup;
	gchar *secondary_markup;
	GtkWidget *primary_label;
	GtkWidget *secondary_label;
	gchar *primary_text;
	const gchar *secondary_text;
	gchar *full_formatted_uri;
	gchar *uri_for_display;
	gchar *temp_uri_for_display;

	g_return_val_if_fail (G_IS_FILE (location), NULL);

	full_formatted_uri = g_file_get_parse_name (location);

	temp_uri_for_display = gedit_utils_str_middle_truncate (full_formatted_uri,
							        MAX_URI_IN_DIALOG_LENGTH);
	g_free (full_formatted_uri);
	uri_for_display = g_markup_printf_escaped ("<i>%s</i>", temp_uri_for_display);
	g_free (temp_uri_for_display);

	info_bar = gtk_info_bar_new ();
	gtk_info_bar_set_show_close_button (GTK_INFO_BAR (info_bar), TRUE);
	gtk_info_bar_set_message_type (GTK_INFO_BAR (info_bar),
				       GTK_MESSAGE_WARNING);
	hbox_content = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 8);

	vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
	gtk_box_pack_start (GTK_BOX (hbox_content), vbox, TRUE, TRUE, 0);

	primary_text = g_strdup_printf (_("The location “%s” is not currently reachable."),
	                                uri_for_display);
	g_free (uri_for_display);

	primary_markup = g_strdup_printf ("<b>%s</b>", primary_text);
	g_free (primary_text);
	primary_label = gtk_label_new (primary_markup);
	g_free (primary_markup);
	gtk_box_pack_start (GTK_BOX (vbox), primary_label, TRUE, TRUE, 0);
	gtk_label_set_use_markup (GTK_LABEL (primary_label), TRUE);
	gtk_label_set_line_wrap (GTK_LABEL (primary_label), TRUE);
	gtk_widget_set_halign (primary_label, GTK_ALIGN_START);
	gtk_widget_set_can_focus (primary_label, TRUE);
	gtk_label_set_selectable (GTK_LABEL (primary_label), TRUE);

	secondary_text = _("Your system is offline. Check your network.");
	secondary_markup = g_strdup_printf ("<small>%s</small>",
					    secondary_text);
	secondary_label = gtk_label_new (secondary_markup);
	g_free (secondary_markup);

	gtk_box_pack_start (GTK_BOX (vbox), secondary_label, TRUE, TRUE, 0);
	gtk_widget_set_can_focus (secondary_label, TRUE);
	gtk_label_set_use_markup (GTK_LABEL (secondary_label), TRUE);
	gtk_label_set_line_wrap (GTK_LABEL (secondary_label), TRUE);
	gtk_label_set_selectable (GTK_LABEL (secondary_label), TRUE);
	gtk_widget_set_halign (secondary_label, GTK_ALIGN_START);

	gtk_widget_show_all (hbox_content);
	set_contents (info_bar, hbox_content);

	return info_bar;
}

static GtkWidget *
create_conversion_error_info_bar (const gchar *primary_text,
				  const gchar *secondary_text,
				  gboolean     edit_anyway)
{
	GtkWidget *info_bar;
	GtkWidget *hbox_content;
	GtkWidget *vbox;
	gchar *primary_markup;
	gchar *secondary_markup;
	GtkWidget *primary_label;
	GtkWidget *secondary_label;

	info_bar = gtk_info_bar_new ();

	gtk_info_bar_add_button (GTK_INFO_BAR (info_bar),
				 _("_Retry"),
				 GTK_RESPONSE_OK);

	if (edit_anyway)
	{
		gtk_info_bar_add_button (GTK_INFO_BAR (info_bar),
		/* Translators: the access key chosen for this string should be
		 different from other main menu access keys (Open, Edit, View...) */
					 _("Edit Any_way"),
					 GTK_RESPONSE_YES);
		gtk_info_bar_set_message_type (GTK_INFO_BAR (info_bar),
					       GTK_MESSAGE_WARNING);
	}
	else
	{
		gtk_info_bar_set_message_type (GTK_INFO_BAR (info_bar),
					       GTK_MESSAGE_ERROR);
	}

	gtk_info_bar_add_button (GTK_INFO_BAR (info_bar),
				 _("_Cancel"),
				 GTK_RESPONSE_CANCEL);

	hbox_content = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 8);

	vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
	gtk_box_pack_start (GTK_BOX (hbox_content), vbox, TRUE, TRUE, 0);

	primary_markup = g_strdup_printf ("<b>%s</b>", primary_text);
	primary_label = gtk_label_new (primary_markup);
	g_free (primary_markup);
	gtk_box_pack_start (GTK_BOX (vbox), primary_label, TRUE, TRUE, 0);
	gtk_label_set_use_markup (GTK_LABEL (primary_label), TRUE);
	gtk_label_set_line_wrap (GTK_LABEL (primary_label), TRUE);
	gtk_widget_set_halign (primary_label, GTK_ALIGN_START);
	gtk_widget_set_can_focus (primary_label, TRUE);
	gtk_label_set_selectable (GTK_LABEL (primary_label), TRUE);

	if (secondary_text != NULL)
	{
		secondary_markup = g_strdup_printf ("<small>%s</small>",
						    secondary_text);
		secondary_label = gtk_label_new (secondary_markup);
		g_free (secondary_markup);
		gtk_box_pack_start (GTK_BOX (vbox), secondary_label, TRUE, TRUE, 0);
		gtk_widget_set_can_focus (secondary_label, TRUE);
		gtk_label_set_use_markup (GTK_LABEL (secondary_label), TRUE);
		gtk_label_set_line_wrap (GTK_LABEL (secondary_label), TRUE);
		gtk_label_set_selectable (GTK_LABEL (secondary_label), TRUE);
		gtk_widget_set_halign (secondary_label, GTK_ALIGN_START);
	}

	create_combo_box (info_bar, vbox);
	gtk_widget_show_all (hbox_content);
	set_contents (info_bar, hbox_content);

	return info_bar;
}

GtkWidget *
gedit_io_loading_error_info_bar_new (GFile                   *location,
				     const GtkSourceEncoding *encoding,
				     const GError            *error)
{
	gchar *error_message = NULL;
	gchar *message_details = NULL;
	gchar *full_formatted_uri;
	gchar *uri_for_display;
	gchar *temp_uri_for_display;
	GtkWidget *info_bar;
	gboolean edit_anyway = FALSE;
	gboolean convert_error = FALSE;

	g_return_val_if_fail (error != NULL, NULL);
	g_return_val_if_fail (error->domain == GTK_SOURCE_FILE_LOADER_ERROR ||
			      error->domain == G_IO_ERROR ||
			      error->domain == G_CONVERT_ERROR, NULL);

	if (location != NULL)
	{
		full_formatted_uri = g_file_get_parse_name (location);
	}
	else
	{
		full_formatted_uri = g_strdup ("stdin");
	}

	/* Truncate the URI so it doesn't get insanely wide. Note that even
	 * though the dialog uses wrapped text, if the URI doesn't contain
	 * white space then the text-wrapping code is too stupid to wrap it.
	 */
	temp_uri_for_display = gedit_utils_str_middle_truncate (full_formatted_uri,
								MAX_URI_IN_DIALOG_LENGTH);
	g_free (full_formatted_uri);

	uri_for_display = g_markup_escape_text (temp_uri_for_display, -1);
	g_free (temp_uri_for_display);

	if (is_gio_error (error, G_IO_ERROR_TOO_MANY_LINKS))
	{
		message_details = g_strdup (_("The number of followed links is limited and the actual file could not be found within this limit."));
	}
	else if (is_gio_error (error, G_IO_ERROR_PERMISSION_DENIED))
	{
		message_details = g_strdup (_("You do not have the permissions necessary to open the file."));
	}
	else if ((is_gio_error (error, G_IO_ERROR_INVALID_DATA) && encoding == NULL) ||
		 (error->domain == GTK_SOURCE_FILE_LOADER_ERROR &&
		  error->code == GTK_SOURCE_FILE_LOADER_ERROR_ENCODING_AUTO_DETECTION_FAILED))
	{
		message_details = g_strconcat (_("Unable to detect the character encoding."), "\n",
					       _("Please check that you are not trying to open a binary file."), "\n",
					       _("Select a character encoding from the menu and try again."), NULL);
		convert_error = TRUE;
	}
	else if (error->domain == GTK_SOURCE_FILE_LOADER_ERROR &&
		 error->code == GTK_SOURCE_FILE_LOADER_ERROR_CONVERSION_FALLBACK)
	{
		error_message = g_strdup_printf (_("There was a problem opening the file “%s”."),
						 uri_for_display);
		message_details = g_strconcat (_("The file you opened has some invalid characters. "
					       "If you continue editing this file you could corrupt this "
					       "document."), "\n",
					       _("You can also choose another character encoding and try again."),
					       NULL);
		edit_anyway = TRUE;
		convert_error = TRUE;
	}
	else if (is_gio_error (error, G_IO_ERROR_INVALID_DATA) && encoding != NULL)
	{
		gchar *encoding_name = gtk_source_encoding_to_string (encoding);

		error_message = g_strdup_printf (_("Could not open the file “%s” using the “%s” character encoding."),
						 uri_for_display,
						 encoding_name);
		message_details = g_strconcat (_("Please check that you are not trying to open a binary file."), "\n",
					       _("Select a different character encoding from the menu and try again."), NULL);
		convert_error = TRUE;

		g_free (encoding_name);
	}
	else
	{
		parse_error (error, &error_message, &message_details, location, uri_for_display);
	}

	if (error_message == NULL)
	{
		error_message = g_strdup_printf (_("Could not open the file “%s”."),
						 uri_for_display);
	}

	if (convert_error)
	{
		info_bar = create_conversion_error_info_bar (error_message,
							     message_details,
							     edit_anyway);
	}
	else
	{
		info_bar = create_io_loading_error_info_bar (error_message,
							     message_details,
							     is_recoverable_error (error));
	}

	g_free (uri_for_display);
	g_free (error_message);
	g_free (message_details);

	return info_bar;
}

GtkWidget *
gedit_conversion_error_while_saving_info_bar_new (GFile                   *location,
						  const GtkSourceEncoding *encoding,
						  const GError            *error)
{
	gchar *error_message = NULL;
	gchar *message_details = NULL;
	gchar *full_formatted_uri;
	gchar *encoding_name;
	gchar *uri_for_display;
	gchar *temp_uri_for_display;
	GtkWidget *info_bar;

	g_return_val_if_fail (G_IS_FILE (location), NULL);
	g_return_val_if_fail (error != NULL, NULL);
	g_return_val_if_fail (error->domain == G_CONVERT_ERROR ||
	                      error->domain == G_IO_ERROR, NULL);
	g_return_val_if_fail (encoding != NULL, NULL);

	full_formatted_uri = g_file_get_parse_name (location);

	/* Truncate the URI so it doesn't get insanely wide. Note that even
	 * though the dialog uses wrapped text, if the URI doesn't contain
	 * white space then the text-wrapping code is too stupid to wrap it.
	 */
	temp_uri_for_display = gedit_utils_str_middle_truncate (full_formatted_uri,
								MAX_URI_IN_DIALOG_LENGTH);
	g_free (full_formatted_uri);

	uri_for_display = g_markup_escape_text (temp_uri_for_display, -1);
	g_free (temp_uri_for_display);

	encoding_name = gtk_source_encoding_to_string (encoding);

	error_message = g_strdup_printf (_("Could not save the file “%s” using the “%s” character encoding."),
					 uri_for_display,
					 encoding_name);
	message_details = g_strconcat (_("The document contains one or more characters that cannot be encoded "
					 "using the specified character encoding."), "\n",
				       _("Select a different character encoding from the menu and try again."), NULL);

	info_bar = create_conversion_error_info_bar (error_message,
						     message_details,
						     FALSE);

	g_free (uri_for_display);
	g_free (encoding_name);
	g_free (error_message);
	g_free (message_details);

	return info_bar;
}

const GtkSourceEncoding *
gedit_conversion_error_info_bar_get_encoding (GtkWidget *info_bar)
{
	gpointer menu;

	g_return_val_if_fail (GTK_IS_INFO_BAR (info_bar), NULL);

	menu = g_object_get_data (G_OBJECT (info_bar),
				  "gedit-info-bar-encoding-menu");
	if (menu != NULL)
	{
		return gedit_encodings_combo_box_get_selected_encoding (GEDIT_ENCODINGS_COMBO_BOX (menu));
	}

	return NULL;
}

GtkWidget *
gedit_file_already_open_warning_info_bar_new (GFile *location)
{
	GtkWidget *info_bar;
	GtkWidget *hbox_content;
	GtkWidget *vbox;
	gchar *primary_markup;
	gchar *secondary_markup;
	GtkWidget *primary_label;
	GtkWidget *secondary_label;
	gchar *primary_text;
	const gchar *secondary_text;
	gchar *full_formatted_uri;
	gchar *uri_for_display;
	gchar *temp_uri_for_display;

	g_return_val_if_fail (G_IS_FILE (location), NULL);

	full_formatted_uri = g_file_get_parse_name (location);

	/* Truncate the URI so it doesn't get insanely wide. Note that even
	 * though the dialog uses wrapped text, if the URI doesn't contain
	 * white space then the text-wrapping code is too stupid to wrap it.
	 */
	temp_uri_for_display = gedit_utils_str_middle_truncate (full_formatted_uri,
								MAX_URI_IN_DIALOG_LENGTH);
	g_free (full_formatted_uri);

	uri_for_display = g_markup_escape_text (temp_uri_for_display, -1);
	g_free (temp_uri_for_display);

	info_bar = gtk_info_bar_new ();
	gtk_info_bar_add_button (GTK_INFO_BAR (info_bar),
	/* Translators: the access key chosen for this string should be
	 different from other main menu access keys (Open, Edit, View...) */
				 _("Edit Any_way"),
				 GTK_RESPONSE_YES);
	gtk_info_bar_add_button (GTK_INFO_BAR (info_bar),
	/* Translators: the access key chosen for this string should be
	 different from other main menu access keys (Open, Edit, View...) */
				 _("D_on't Edit"),
				 GTK_RESPONSE_CANCEL);
	gtk_info_bar_set_message_type (GTK_INFO_BAR (info_bar),
				       GTK_MESSAGE_WARNING);

	hbox_content = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 8);

	vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
	gtk_box_pack_start (GTK_BOX (hbox_content), vbox, TRUE, TRUE, 0);

	primary_text = g_strdup_printf (_("This file “%s” is already open in another window."), uri_for_display);
	g_free (uri_for_display);

	primary_markup = g_strdup_printf ("<b>%s</b>", primary_text);
	g_free (primary_text);
	primary_label = gtk_label_new (primary_markup);
	g_free (primary_markup);
	gtk_box_pack_start (GTK_BOX (vbox), primary_label, TRUE, TRUE, 0);
	gtk_label_set_use_markup (GTK_LABEL (primary_label), TRUE);
	gtk_label_set_line_wrap (GTK_LABEL (primary_label), TRUE);
	gtk_widget_set_halign (primary_label, GTK_ALIGN_START);
	gtk_widget_set_can_focus (primary_label, TRUE);
	gtk_label_set_selectable (GTK_LABEL (primary_label), TRUE);

	secondary_text = _("Do you want to edit it anyway?");
	secondary_markup = g_strdup_printf ("<small>%s</small>",
					    secondary_text);
	secondary_label = gtk_label_new (secondary_markup);
	g_free (secondary_markup);
	gtk_box_pack_start (GTK_BOX (vbox), secondary_label, TRUE, TRUE, 0);
	gtk_widget_set_can_focus (secondary_label, TRUE);
	gtk_label_set_use_markup (GTK_LABEL (secondary_label), TRUE);
	gtk_label_set_line_wrap (GTK_LABEL (secondary_label), TRUE);
	gtk_label_set_selectable (GTK_LABEL (secondary_label), TRUE);
	gtk_widget_set_halign (secondary_label, GTK_ALIGN_START);

	gtk_widget_show_all (hbox_content);
	set_contents (info_bar, hbox_content);

	return info_bar;
}

GtkWidget *
gedit_externally_modified_saving_error_info_bar_new (GFile        *location,
						     const GError *error)
{
	GtkWidget *info_bar;
	GtkWidget *hbox_content;
	GtkWidget *vbox;
	gchar *primary_markup;
	gchar *secondary_markup;
	GtkWidget *primary_label;
	GtkWidget *secondary_label;
	gchar *primary_text;
	const gchar *secondary_text;
	gchar *full_formatted_uri;
	gchar *uri_for_display;
	gchar *temp_uri_for_display;

	g_return_val_if_fail (G_IS_FILE (location), NULL);
	g_return_val_if_fail (error != NULL, NULL);
	g_return_val_if_fail (error->domain == GTK_SOURCE_FILE_SAVER_ERROR, NULL);
	g_return_val_if_fail (error->code == GTK_SOURCE_FILE_SAVER_ERROR_EXTERNALLY_MODIFIED, NULL);

	full_formatted_uri = g_file_get_parse_name (location);

	/* Truncate the URI so it doesn't get insanely wide. Note that even
	 * though the dialog uses wrapped text, if the URI doesn't contain
	 * white space then the text-wrapping code is too stupid to wrap it.
	 */
	temp_uri_for_display = gedit_utils_str_middle_truncate (full_formatted_uri,
								MAX_URI_IN_DIALOG_LENGTH);
	g_free (full_formatted_uri);

	uri_for_display = g_markup_escape_text (temp_uri_for_display, -1);
	g_free (temp_uri_for_display);

	info_bar = gtk_info_bar_new ();

	gtk_info_bar_add_button (GTK_INFO_BAR (info_bar),
				 _("S_ave Anyway"),
				 GTK_RESPONSE_YES);
	gtk_info_bar_add_button (GTK_INFO_BAR (info_bar),
				 _("D_on't Save"),
				 GTK_RESPONSE_CANCEL);
	gtk_info_bar_set_message_type (GTK_INFO_BAR (info_bar),
				       GTK_MESSAGE_WARNING);

	hbox_content = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 8);

	vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
	gtk_box_pack_start (GTK_BOX (hbox_content), vbox, TRUE, TRUE, 0);

	/* FIXME: review this message, it's not clear since for the user the "modification"
	 * could be interpreted as the changes he made in the document. beside "reading" is
	 * not accurate (since last load/save)
	 */
	primary_text = g_strdup_printf (_("The file “%s” has been modified since reading it."),
					uri_for_display);
	g_free (uri_for_display);

	primary_markup = g_strdup_printf ("<b>%s</b>", primary_text);
	g_free (primary_text);
	primary_label = gtk_label_new (primary_markup);
	g_free (primary_markup);
	gtk_box_pack_start (GTK_BOX (vbox), primary_label, TRUE, TRUE, 0);
	gtk_label_set_use_markup (GTK_LABEL (primary_label), TRUE);
	gtk_label_set_line_wrap (GTK_LABEL (primary_label), TRUE);
	gtk_widget_set_halign (primary_label, GTK_ALIGN_START);
	gtk_widget_set_can_focus (primary_label, TRUE);
	gtk_label_set_selectable (GTK_LABEL (primary_label), TRUE);

	secondary_text = _("If you save it, all the external changes could be lost. Save it anyway?");
	secondary_markup = g_strdup_printf ("<small>%s</small>",
					    secondary_text);
	secondary_label = gtk_label_new (secondary_markup);
	g_free (secondary_markup);
	gtk_box_pack_start (GTK_BOX (vbox), secondary_label, TRUE, TRUE, 0);
	gtk_widget_set_can_focus (secondary_label, TRUE);
	gtk_label_set_use_markup (GTK_LABEL (secondary_label), TRUE);
	gtk_label_set_line_wrap (GTK_LABEL (secondary_label), TRUE);
	gtk_label_set_selectable (GTK_LABEL (secondary_label), TRUE);
	gtk_widget_set_halign (secondary_label, GTK_ALIGN_START);

	gtk_widget_show_all (hbox_content);
	set_contents (info_bar, hbox_content);

	return info_bar;
}

GtkWidget *
gedit_no_backup_saving_error_info_bar_new (GFile        *location,
					   const GError *error)
{
	GtkWidget *info_bar;
	GtkWidget *hbox_content;
	GtkWidget *vbox;
	gchar *primary_markup;
	gchar *secondary_markup;
	GtkWidget *primary_label;
	GtkWidget *secondary_label;
	gchar *primary_text;
	const gchar *secondary_text;
	gchar *full_formatted_uri;
	gchar *uri_for_display;
	gchar *temp_uri_for_display;
	gboolean create_backup_copy;
	GSettings *editor_settings;

	g_return_val_if_fail (G_IS_FILE (location), NULL);
	g_return_val_if_fail (error != NULL, NULL);
	g_return_val_if_fail (error->domain == G_IO_ERROR &&
			      error->code == G_IO_ERROR_CANT_CREATE_BACKUP, NULL);

	full_formatted_uri = g_file_get_parse_name (location);

	/* Truncate the URI so it doesn't get insanely wide. Note that even
	 * though the dialog uses wrapped text, if the URI doesn't contain
	 * white space then the text-wrapping code is too stupid to wrap it.
	 */
	temp_uri_for_display = gedit_utils_str_middle_truncate (full_formatted_uri,
								MAX_URI_IN_DIALOG_LENGTH);
	g_free (full_formatted_uri);

	uri_for_display = g_markup_escape_text (temp_uri_for_display, -1);
	g_free (temp_uri_for_display);

	info_bar = gtk_info_bar_new ();

	gtk_info_bar_add_button (GTK_INFO_BAR (info_bar),
				 _("S_ave Anyway"),
				 GTK_RESPONSE_YES);
	gtk_info_bar_add_button (GTK_INFO_BAR (info_bar),
				 _("D_on't Save"),
				 GTK_RESPONSE_CANCEL);
	gtk_info_bar_set_message_type (GTK_INFO_BAR (info_bar),
				       GTK_MESSAGE_WARNING);

	hbox_content = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 8);

	vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
	gtk_box_pack_start (GTK_BOX (hbox_content), vbox, TRUE, TRUE, 0);

	editor_settings = g_settings_new ("org.gnome.gedit.preferences.editor");

	create_backup_copy = g_settings_get_boolean (editor_settings,
						     GEDIT_SETTINGS_CREATE_BACKUP_COPY);
	g_object_unref (editor_settings);

	/* FIXME: review this messages */
	if (create_backup_copy)
	{
		primary_text = g_strdup_printf (_("Could not create a backup file while saving “%s”"),
						uri_for_display);
	}
	else
	{
		primary_text = g_strdup_printf (_("Could not create a temporary backup file while saving “%s”"),
						uri_for_display);
	}

	g_free (uri_for_display);

	primary_markup = g_strdup_printf ("<b>%s</b>", primary_text);
	g_free (primary_text);
	primary_label = gtk_label_new (primary_markup);
	g_free (primary_markup);
	gtk_box_pack_start (GTK_BOX (vbox), primary_label, TRUE, TRUE, 0);
	gtk_label_set_use_markup (GTK_LABEL (primary_label), TRUE);
	gtk_label_set_line_wrap (GTK_LABEL (primary_label), TRUE);
	gtk_widget_set_halign (primary_label, GTK_ALIGN_START);
	gtk_widget_set_can_focus (primary_label, TRUE);
	gtk_label_set_selectable (GTK_LABEL (primary_label), TRUE);

	secondary_text = _("Could not back up the old copy of the file before saving the new one. "
			   "You can ignore this warning and save the file anyway, but if an error "
			   "occurs while saving, you could lose the old copy of the file. Save anyway?");
	secondary_markup = g_strdup_printf ("<small>%s</small>",
					    secondary_text);
	secondary_label = gtk_label_new (secondary_markup);
	g_free (secondary_markup);
	gtk_box_pack_start (GTK_BOX (vbox), secondary_label, TRUE, TRUE, 0);
	gtk_widget_set_can_focus (secondary_label, TRUE);
	gtk_label_set_use_markup (GTK_LABEL (secondary_label), TRUE);
	gtk_label_set_line_wrap (GTK_LABEL (secondary_label), TRUE);
	gtk_label_set_selectable (GTK_LABEL (secondary_label), TRUE);
	gtk_widget_set_halign (secondary_label, GTK_ALIGN_START);

	gtk_widget_show_all (hbox_content);
	set_contents (info_bar, hbox_content);

	return info_bar;
}

GtkWidget *
gedit_unrecoverable_saving_error_info_bar_new (GFile        *location,
					       const GError *error)
{
	gchar *error_message = NULL;
	gchar *message_details = NULL;
	gchar *full_formatted_uri;
	gchar *scheme_string;
	gchar *scheme_markup;
	gchar *uri_for_display;
	gchar *temp_uri_for_display;
	GtkWidget *info_bar;

	g_return_val_if_fail (G_IS_FILE (location), NULL);
	g_return_val_if_fail (error != NULL, NULL);
	g_return_val_if_fail (error->domain == GTK_SOURCE_FILE_SAVER_ERROR ||
			      error->domain == G_IO_ERROR, NULL);

	full_formatted_uri = g_file_get_parse_name (location);

	/* Truncate the URI so it doesn't get insanely wide. Note that even
	 * though the dialog uses wrapped text, if the URI doesn't contain
	 * white space then the text-wrapping code is too stupid to wrap it.
	 */
	temp_uri_for_display = gedit_utils_str_middle_truncate (full_formatted_uri,
								MAX_URI_IN_DIALOG_LENGTH);
	g_free (full_formatted_uri);

	uri_for_display = g_markup_escape_text (temp_uri_for_display, -1);
	g_free (temp_uri_for_display);

	if (is_gio_error (error, G_IO_ERROR_NOT_SUPPORTED))
	{
		scheme_string = g_file_get_uri_scheme (location);

		if ((scheme_string != NULL) && g_utf8_validate (scheme_string, -1, NULL))
		{
			scheme_markup = g_markup_escape_text (scheme_string, -1);

			/* Translators: %s is a URI scheme (like for example http:, ftp:, etc.) */
			message_details = g_strdup_printf (_("Cannot handle “%s:” locations in write mode. "
							     "Please check that you typed the "
							     "location correctly and try again."),
							   scheme_markup);
			g_free (scheme_markup);
		}
		else
		{
			message_details = g_strdup (_("Cannot handle this location in write mode. "
						      "Please check that you typed the "
						      "location correctly and try again."));
		}

		g_free (scheme_string);
	}
	else if (is_gio_error (error, G_IO_ERROR_INVALID_FILENAME))
	{
		message_details = g_strdup_printf (_("“%s” is not a valid location. "
						     "Please check that you typed the "
						     "location correctly and try again."),
						   uri_for_display);
	}
	else if (is_gio_error (error, G_IO_ERROR_PERMISSION_DENIED))
	{
		message_details = g_strdup (_("You do not have the permissions necessary to save the file. "
					      "Please check that you typed the "
					      "location correctly and try again."));
	}
	else if (is_gio_error (error, G_IO_ERROR_NO_SPACE))
	{
		message_details = g_strdup (_("There is not enough disk space to save the file. "
					      "Please free some disk space and try again."));
	}
	else if (is_gio_error (error, G_IO_ERROR_READ_ONLY))
	{
		message_details = g_strdup (_("You are trying to save the file on a read-only disk. "
					      "Please check that you typed the location "
					      "correctly and try again."));
	}
	else if (is_gio_error (error, G_IO_ERROR_EXISTS))
	{
		message_details = g_strdup (_("A file with the same name already exists. "
					      "Please use a different name."));
	}
	else if (is_gio_error (error, G_IO_ERROR_FILENAME_TOO_LONG))
	{
		message_details = g_strdup (_("The disk where you are trying to save the file has "
					      "a limitation on length of the file names. "
					      "Please use a shorter name."));
	}
#if 0
	/* FIXME this error can not occur for a file saving. Either remove the
	 * code here, or improve the GtkSourceFileSaver so this error can occur.
	 */
	else if (error->domain == GEDIT_DOCUMENT_ERROR &&
		 error->code == GEDIT_DOCUMENT_ERROR_TOO_BIG)
	{
		message_details = g_strdup (_("The disk where you are trying to save the file has "
					      "a limitation on file sizes. Please try saving "
					      "a smaller file or saving it to a disk that does not "
					      "have this limitation."));
	}
#endif
	else
	{
		parse_error (error,
			     &error_message,
			     &message_details,
			     location,
			     uri_for_display);
	}

	if (error_message == NULL)
	{
		error_message = g_strdup_printf (_("Could not save the file “%s”."),
						 uri_for_display);
	}

	info_bar = create_io_loading_error_info_bar (error_message,
						     message_details,
						     FALSE);

	g_free (uri_for_display);
	g_free (error_message);
	g_free (message_details);

	return info_bar;
}

GtkWidget *
gedit_externally_modified_info_bar_new (GFile    *location,
					gboolean  document_modified)
{
	gchar *full_formatted_uri;
	gchar *uri_for_display;
	gchar *temp_uri_for_display;
	gchar *primary_text;
	GtkWidget *info_bar;

	g_return_val_if_fail (G_IS_FILE (location), NULL);

	full_formatted_uri = g_file_get_parse_name (location);

	/* Truncate the URI so it doesn't get insanely wide. Note that even
	 * though the dialog uses wrapped text, if the URI doesn't contain
	 * white space then the text-wrapping code is too stupid to wrap it.
	 */
	temp_uri_for_display = gedit_utils_str_middle_truncate (full_formatted_uri,
								MAX_URI_IN_DIALOG_LENGTH);
	g_free (full_formatted_uri);

	uri_for_display = g_markup_escape_text (temp_uri_for_display, -1);
	g_free (temp_uri_for_display);

	primary_text = g_strdup_printf (_("The file “%s” changed on disk."),
					uri_for_display);
	g_free (uri_for_display);

	info_bar = gtk_info_bar_new ();

	if (document_modified)
	{
		GtkWidget *box;
		GtkWidget *button;
		button = gtk_info_bar_add_button (GTK_INFO_BAR (info_bar),
						  _("Drop Changes and _Reload"),
						  GTK_RESPONSE_OK);
		box = gtk_info_bar_get_action_area (GTK_INFO_BAR (info_bar));
		gtk_button_box_set_child_non_homogeneous (GTK_BUTTON_BOX (box),
							  button,
							  TRUE);
	}
	else
	{
		gtk_info_bar_add_button (GTK_INFO_BAR (info_bar),
					 _("_Reload"),
					 GTK_RESPONSE_OK);
	}

	gtk_info_bar_add_button (GTK_INFO_BAR (info_bar),
				 _("_Ignore"),
				 GTK_RESPONSE_CANCEL);
	gtk_info_bar_set_message_type (GTK_INFO_BAR (info_bar),
				       GTK_MESSAGE_WARNING);

	set_info_bar_text (info_bar,
			   primary_text,
			   NULL);

	g_free (primary_text);

	return info_bar;
}

GtkWidget *
gedit_invalid_character_info_bar_new (GFile *location)
{
	GtkWidget *info_bar;
	GtkWidget *hbox_content;
	GtkWidget *vbox;
	GtkWidget *primary_label;
	GtkWidget *secondary_label;
	gchar *primary_markup;
	gchar *secondary_markup;
	gchar *primary_text;
	gchar *full_formatted_uri;
	gchar *uri_for_display;
	gchar *temp_uri_for_display;
	const gchar *secondary_text;

	g_return_val_if_fail (G_IS_FILE (location), NULL);

	full_formatted_uri = g_file_get_parse_name (location);

	/* Truncate the URI so it doesn't get insanely wide. Note that even
	 * though the dialog uses wrapped text, if the URI doesn't contain
	 * white space then the text-wrapping code is too stupid to wrap it.
	 */
	temp_uri_for_display = gedit_utils_str_middle_truncate (full_formatted_uri,
								MAX_URI_IN_DIALOG_LENGTH);
	g_free (full_formatted_uri);

	uri_for_display = g_markup_escape_text (temp_uri_for_display, -1);
	g_free (temp_uri_for_display);

	info_bar = gtk_info_bar_new ();

	gtk_info_bar_add_button (GTK_INFO_BAR (info_bar),
				 _("S_ave Anyway"),
				 GTK_RESPONSE_YES);
	gtk_info_bar_add_button (GTK_INFO_BAR (info_bar),
				 _("D_on't Save"),
				 GTK_RESPONSE_CANCEL);
	gtk_info_bar_set_message_type (GTK_INFO_BAR (info_bar),
				       GTK_MESSAGE_WARNING);

	hbox_content = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 8);

	vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
	gtk_box_pack_start (GTK_BOX (hbox_content), vbox, TRUE, TRUE, 0);

	primary_text = g_strdup_printf (_("Some invalid chars have been detected while saving “%s”"),
					uri_for_display);

	g_free (uri_for_display);

	primary_markup = g_strdup_printf ("<b>%s</b>", primary_text);
	g_free (primary_text);
	primary_label = gtk_label_new (primary_markup);
	g_free (primary_markup);
	gtk_box_pack_start (GTK_BOX (vbox), primary_label, TRUE, TRUE, 0);
	gtk_label_set_use_markup (GTK_LABEL (primary_label), TRUE);
	gtk_label_set_line_wrap (GTK_LABEL (primary_label), TRUE);
	gtk_widget_set_halign (primary_label, GTK_ALIGN_START);
	gtk_widget_set_can_focus (primary_label, TRUE);
	gtk_label_set_selectable (GTK_LABEL (primary_label), TRUE);

	secondary_text = _("If you continue saving this file you can corrupt the document. "
	                   " Save anyway?");
	secondary_markup = g_strdup_printf ("<small>%s</small>",
					    secondary_text);
	secondary_label = gtk_label_new (secondary_markup);
	g_free (secondary_markup);
	gtk_box_pack_start (GTK_BOX (vbox), secondary_label, TRUE, TRUE, 0);
	gtk_widget_set_can_focus (secondary_label, TRUE);
	gtk_label_set_use_markup (GTK_LABEL (secondary_label), TRUE);
	gtk_label_set_line_wrap (GTK_LABEL (secondary_label), TRUE);
	gtk_label_set_selectable (GTK_LABEL (secondary_label), TRUE);
	gtk_widget_set_halign (secondary_label, GTK_ALIGN_START);

	gtk_widget_show_all (hbox_content);
	set_contents (info_bar, hbox_content);

	return info_bar;
}

/* ex:set ts=8 noet: */
