Add error state to chapter download icons

app/src/main/java/eu/kanade/tachiyomi/ui/manga/chapter/ChapterDownloadView.kt

@@ -19,11 +19,16 @@ class ChapterDownloadView @JvmOverloads constructor(context: Context, attrs: Att
     }
 
     fun setState(state: Download.State) {
-        binding.downloadIconBorder.isVisible = state == Download.State.NOT_DOWNLOADED || state == Download.State.ERROR
+        binding.downloadIconBorder.isVisible = state == Download.State.NOT_DOWNLOADED
         binding.downloadIcon.isVisible = state == Download.State.NOT_DOWNLOADED || state == Download.State.DOWNLOADING
 
         binding.downloadProgress.isVisible = state == Download.State.DOWNLOADING || state == Download.State.QUEUE
+        // TODO: show actual download progress
 
         binding.downloadedIcon.isVisible = state == Download.State.DOWNLOADED
+
+        binding.errorIcon.isVisible = state == Download.State.ERROR
     }
+
+    // TODO: onClick actions
 }

app/src/main/res/drawable/ic_error_outline_24dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M11,15h2v2h-2zM11,7h2v6h-2zM11.99,2C6.47,2 2,6.48 2,12s4.47,10 9.99,10C17.52,22 22,17.52 22,12S17.52,2 11.99,2zM12,20c-4.42,0 -8,-3.58 -8,-8s3.58,-8 8,-8 8,3.58 8,8 -3.58,8 -8,8z" />
+</vector>

app/src/main/res/layout/chapter_download_view.xml

@@ -43,8 +43,12 @@
         app:tint="@color/material_on_surface_emphasis_medium"
         tools:ignore="ContentDescription" />
 
-    <!--    chapter_error -->
-
-    <!--    chapter_queued-->
+    <ImageView
+        android:id="@+id/error_icon"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:srcCompat="@drawable/ic_error_outline_24dp"
+        app:tint="?attr/colorError"
+        tools:ignore="ContentDescription" />
 
 </FrameLayout>