Merge pull request #3201 from bluesky-social/samuel/handle-invalid-files

Filter out non-image files from image picker

src/lib/media/picker.shared.ts

@@ -18,11 +18,18 @@ export async function openPicker(opts?: ImagePickerOptions) {
     Toast.show('You may only select up to 4 images')
   }
 
-  return (response.assets ?? []).slice(0, 4).map(image => ({
-    mime: 'image/jpeg',
-    height: image.height,
-    width: image.width,
-    path: image.uri,
-    size: getDataUriSize(image.uri),
-  }))
+  return (response.assets ?? [])
+    .slice(0, 4)
+    .filter(asset => {
+      if (asset.mimeType?.startsWith('image/')) return true
+      Toast.show('Only image files are supported')
+      return false
+    })
+    .map(image => ({
+      mime: 'image/jpeg',
+      height: image.height,
+      width: image.width,
+      path: image.uri,
+      size: getDataUriSize(image.uri),
+    }))
 }