metadata: Support XMP metadata from glycin

build-aux/flatpak/org.gnome.Loupe.Devel.json

@@ -113,7 +113,7 @@
                 {
                     "type": "git",
                     "url": "https://gitlab.gnome.org/sophie-h/glycin.git",
-                    "commit": "a887f4246b1dc0a40fd10dbfe96e734b3799d9a3"
+                    "commit": "35401d5faf9aa0980dc04e51629b3f4eda541dbf"
                 }
             ]
         },

news.d/48.alpha/added-xmp-support

@@ -0,0 +1 @@
+Display XMP metadata for JPEG images.

src/metadata.rs

@@ -55,10 +55,21 @@ impl Metadata {
         }
     }
 
+    fn set_xmp_bytes(&mut self, bytes: Vec<u8>) {
+        let result = self.metadata.add_raw_xmp(bytes);
+
+        if let Err(err) = &result {
+            log::warn!("Failed to decode XMP bytes: {err}");
+        }
+    }
+
     pub fn set_image_info(&mut self, image_info: ImageInfoDetails) {
         if let Some(exif_raw) = image_info.exif.as_ref().and_then(|x| x.get_full().ok()) {
             self.set_exif_bytes(exif_raw);
         }
+        if let Some(exif_xmp) = image_info.xmp.as_ref().and_then(|x| x.get_full().ok()) {
+            self.set_xmp_bytes(exif_xmp);
+        }
         self.image_info = Some(image_info);
     }