1// Copyright (c) 2023 XMPP-RS contributors.
 2//
 3// This Source Code Form is subject to the terms of the Mozilla Public
 4// License, v. 2.0. If a copy of the MPL was not distributed with this
 5// file, you can obtain one at http://mozilla.org/MPL/2.0/.
 6
 7//! Jingle thumbnails (XEP-0264)
 8
 9use xso::{AsXml, FromXml};
10
11use crate::ns;
12use core::num::NonZeroU16;
13
14/// A Jingle thumbnail.
15#[derive(FromXml, AsXml, PartialEq, Debug, Clone)]
16#[xml(namespace = ns::JINGLE_THUMBNAILS, name = "thumbnail")]
17pub struct Thumbnail {
18    /// The URI of the thumbnail.
19    #[xml(attribute)]
20    pub uri: String,
21
22    /// The media type of the thumbnail.
23    #[xml(attribute(default, name = "media-type"))]
24    pub media_type: Option<String>,
25
26    /// The width of the thumbnail.
27    #[xml(attribute(default))]
28    pub width: Option<NonZeroU16>,
29
30    /// The height of the thumbnail.
31    #[xml(attribute(default))]
32    pub height: Option<NonZeroU16>,
33}
34
35#[cfg(test)]
36mod tests {
37    use crate::jingle_thumbnails::Thumbnail;
38    use core::num::NonZeroU16;
39    use minidom::Element;
40
41    #[cfg(target_pointer_width = "32")]
42    #[test]
43    fn test_size() {
44        assert_size!(Thumbnail, 28);
45    }
46
47    #[cfg(target_pointer_width = "64")]
48    #[test]
49    fn test_size() {
50        assert_size!(Thumbnail, 56);
51    }
52
53    #[test]
54    fn test_simple_parse() {
55        // Extracted from https://xmpp.org/extensions/xep-0264.html#example-1
56        let test_xml = "<thumbnail xmlns='urn:xmpp:thumbs:1'
57        uri='cid:sha1+ffd7c8d28e9c5e82afea41f97108c6b4@bob.xmpp.org'
58        media-type='image/png'
59        width='128'
60        height='96'/>";
61
62        let elem: Element = test_xml.parse().unwrap();
63
64        let thumbnail = Thumbnail::try_from(elem).unwrap();
65
66        assert_eq!(
67            thumbnail.uri,
68            "cid:sha1+ffd7c8d28e9c5e82afea41f97108c6b4@bob.xmpp.org"
69        );
70        assert_eq!(thumbnail.media_type.unwrap(), "image/png");
71        assert_eq!(thumbnail.width, NonZeroU16::new(128));
72        assert_eq!(thumbnail.height, NonZeroU16::new(96));
73    }
74}