Added jingle_thumbnails module.

parsers/src/jingle_thumnails.rs

@@ -0,0 +1,50 @@
+//! Jingle thumbnails (XEP-0264)
+
+// Copyright (c) 2023 XMPP-RS contributors.=
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, you can obtain one at http://mozilla.org/MPL/2.0/.
+
+generate_element!(
+    /// A Jingle thumbnail.
+    Thumbnail, "thumbnail", JINGLE_THUMBNAILS,
+    attributes: [
+        /// The URI of the thumbnail.
+        uri: Required<String> = "uri",
+        /// The media type of the thumbnail.
+        media_type: Required<String> = "media-type",
+        /// The width of the thumbnail.
+        width: Required<u32> = "width",
+        /// The height of the thumbnail.
+        height: Required<u32> = "height",
+    ]
+);
+
+#[cfg(test)]
+mod tests {
+    use crate::jingle_thumnails::Thumbnail;
+    use minidom::Element;
+
+    #[test]
+    fn test_simple_parse() {
+        // Extracted from https://xmpp.org/extensions/xep-0264.html#example-1
+        let test_xml = "<thumbnail xmlns='urn:xmpp:thumbs:1'
+        uri='cid:sha1+ffd7c8d28e9c5e82afea41f97108c6b4@bob.xmpp.org'
+        media-type='image/png'
+        width='128'
+        height='96'/>";
+
+        let elem: Element = test_xml.parse().unwrap();
+
+        let thumbnail = Thumbnail::try_from(elem).unwrap();
+
+        assert_eq!(
+            thumbnail.uri,
+            "cid:sha1+ffd7c8d28e9c5e82afea41f97108c6b4@bob.xmpp.org"
+        );
+        assert_eq!(thumbnail.media_type, "image/png");
+        assert_eq!(thumbnail.width, 128);
+        assert_eq!(thumbnail.height, 96);
+    }
+}