~ubuntu-branches/ubuntu/trusty/evince/trusty-proposed

/* this file is part of evince, a gnome document viewer

 *

 *  Copyright (C) 2005 Red Hat, Inc

 *

 * Evince 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.

 *

 * Evince is distributed in the hope that it will be useful, but

 * WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.

 */

#include "ev-window-title.h"

#include "ev-document-factory.h"

#include <glib/gi18n.h>

#include <libgnomevfs/gnome-vfs-utils.h>

typedef struct

{

	EvBackend backend;

	const char *ext;

} BadExtensionEntry;

struct _EvWindowTitle

{

	EvWindow *window;

	EvWindowTitleType type;

	EvDocument *document;

	char *uri;

};

static const BadExtensionEntry bad_extensions[] = {

	{ EV_BACKEND_PS, ".dvi" },

	{ EV_BACKEND_PDF, ".doc" },

	{ EV_BACKEND_PDF, ".dvi" },

	{ EV_BACKEND_PDF, ".indd" },

	{ EV_BACKEND_PDF, ".rtf" }

};

EvWindowTitle *

ev_window_title_new (EvWindow *window)

{

	EvWindowTitle *window_title;

	window_title = g_new0 (EvWindowTitle, 1);

	window_title->window = window;

	window_title->type = EV_WINDOW_TITLE_DOCUMENT;

	return window_title;

}

static char *

get_filename_from_uri (const char *uri)

{

	char *filename;

	char *display_name;

	display_name = gnome_vfs_format_uri_for_display (uri);

	filename = g_path_get_basename (display_name);

	g_free (display_name);

	return filename;

}

/* Some docs report titles with confusing extensions (ex. .doc for pdf).

   Let's show the filename in this case */

static void

ev_window_title_sanitize_extension (EvWindowTitle *window_title, char **title) {

	EvBackend backend;

	int i;

	backend = ev_document_factory_get_backend (window_title->document);

	for (i = 0; i < G_N_ELEMENTS (bad_extensions); i++) {

		if (bad_extensions[i].backend == backend &&

		    g_str_has_suffix (*title, bad_extensions[i].ext)) {

			char *new_title;

			char *filename = get_filename_from_uri (window_title->uri);

			new_title = g_strdup_printf ("%s (%s)", *title, filename);

			g_free (*title);

			*title = new_title;

			g_free (filename);

		}

	}

}

static void

ev_window_title_update (EvWindowTitle *window_title)

{

	GtkWindow *window = GTK_WINDOW (window_title->window);

	char *title = NULL, *password_title, *p;

	EvPageCache *page_cache;

	if (window_title->document != NULL) {

		char *doc_title;

		page_cache = ev_page_cache_get (window_title->document);

		g_return_if_fail (page_cache != NULL);

		doc_title = (char *)ev_page_cache_get_title (page_cache);

		/* Make sure we get a valid title back */

		if (doc_title != NULL) {

			doc_title = g_strstrip (doc_title);

			if (doc_title[0] != '\0' &&

			    g_utf8_validate (doc_title, -1, NULL)) {

				title = g_strdup (doc_title);

			}

		}

	}

	if (title && window_title->uri) {

		ev_window_title_sanitize_extension (window_title, &title);

	} else {

		if (window_title->uri) {

			title = get_filename_from_uri (window_title->uri);

		} else {

			title = g_strdup (_("Document Viewer"));

		}

	}

	for (p = title; *p; ++p) {

		/* an '\n' byte is always ASCII, no need for UTF-8 special casing */

		if (*p == '\n')	*p = ' ';

	}

	switch (window_title->type) {

	case EV_WINDOW_TITLE_DOCUMENT:

		gtk_window_set_title (window, title);

		break;

	case EV_WINDOW_TITLE_PASSWORD:

		password_title = g_strdup_printf (_("%s - Password Required"), title);

		gtk_window_set_title (window, password_title);

		g_free (password_title);

		break;

	}

	g_free (title);

}

void

ev_window_title_set_type (EvWindowTitle *window_title, EvWindowTitleType type)

{

	window_title->type = type;

	ev_window_title_update (window_title);

}

void

ev_window_title_set_document (EvWindowTitle *window_title,

			      EvDocument    *document)

{

	window_title->document = document;

	ev_window_title_update (window_title);

}

void

ev_window_title_set_uri (EvWindowTitle *window_title,

			 const char    *uri)

{

	g_free (window_title->uri);

	window_title->uri = g_strdup (uri);

	ev_window_title_update (window_title);

}

void

ev_window_title_free (EvWindowTitle *window_title)

{

	g_free (window_title->uri);

	g_free (window_title);

}