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/*
* Copyright (C) 2015 Jens Georg <mail@jensge.org>.
*
* This file is part of Rygel.
*
* Rygel is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Rygel 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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.
*/
using Rygel;
using Gee;
internal class Rygel.MediaExport.DVDContainer : SimpleContainer, UpdatableObject {
public new const string UPNP_CLASS = MediaContainer.PLAYLIST + ".DVD";
public const string PREFIX = "dvd";
public const string TRACK_PREFIX = "dvd-track";
public string path { get; construct set; }
private GUPnP.XMLDoc doc;
public DVDContainer (string id,
MediaContainer? parent,
string title,
string path) {
Object (id : id,
upnp_class : DVDContainer.UPNP_CLASS,
title : title,
parent : parent,
child_count : 0,
path : path);
}
public override void constructed () {
base.constructed ();
this.add_uri (File.new_for_path (path).get_uri ());
var cache_path = this.get_cache_path (this.path);
var doc = Xml.Parser.read_file (cache_path,
null,
Xml.ParserOption.NOERROR |
Xml.ParserOption.NOWARNING |
Xml.ParserOption.NOBLANKS |
Xml.ParserOption.NONET);
this.doc = new GUPnP.XMLDoc ((owned) doc);
var context = new Xml.XPath.Context (this.doc.get_doc ());
var xpo = context.eval ("/lsdvd/track");
if (xpo->type != Xml.XPath.ObjectType.NODESET) {
warning ("No tracks found in DVD");
} else {
for (int i = 0; i < xpo->nodesetval->length (); i++) {
var node = xpo->nodesetval->item (i);
var item = this.get_item_for_xml (i, node);
this.add_child_item (item);
}
}
delete xpo;
}
public override async MediaObject? find_object (string id,
Cancellable? cancellable)
throws Error {
if (!id.has_prefix (DVDContainer.TRACK_PREFIX)) {
return null;
}
var parts = id.split (":");
var track = int.parse (parts[2]);
var context = new Xml.XPath.Context (this.doc.get_doc ());
var xpo = context.eval ("/lsdvd/track");
if (!(xpo->type == Xml.XPath.ObjectType.NODESET &&
xpo->nodesetval->length () >= track)) {
delete xpo;
warning ("No track %s in DVD", parts[2]);
return null;
}
var object = this.get_item_for_xml (int.parse (parts[2]),
xpo->nodesetval->item (track));
delete xpo;
return object;
}
private string get_cache_path (string image_path) {
unowned string user_cache = Environment.get_user_cache_dir ();
var id = Checksum.compute_for_string (ChecksumType.MD5, image_path);
var cache_folder = Path.build_filename (user_cache,
"rygel",
"dvd-content");
DirUtils.create_with_parents (cache_folder, 0700);
return Path.build_filename (cache_folder, id);
}
public async void commit_custom (bool override_guarded) throws Error {
MediaCache.get_default ().save_container (this);
}
private string get_track_id (int track) {
var parts = this.id.split (":");
parts[0] = "dvd-track";
parts += track.to_string ();
return string.joinv (":", parts);
}
private MediaFileItem get_item_for_xml (int track, Xml.Node *node) {
var item = new DVDTrack (this.get_track_id (track),
this,
_("Title %d").printf (track + 1),
track,
node);
item.parent_ref = this;
return item;
}
}
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