Add error state to MangaCover composable (#7022)

* Add error state to MangaCover

- Add error drawable when thumbnailUrl isn't able to be loaded
- Tweak usage of MangaCover

* Change `contentDescription` to be nullable

As the invoke function makes default nulls

app/src/main/java/eu/kanade/presentation/components/MangaCover.kt

@@ -11,29 +11,31 @@ import androidx.compose.ui.graphics.painter.ColorPainter
 import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.unit.dp
 import coil.compose.AsyncImage
+import eu.kanade.presentation.util.bitmapPainterResource
+import eu.kanade.tachiyomi.R
 
-enum class MangaCoverAspect(val ratio: Float) {
-    SQUARE(1f / 1f),
-    COVER(2f / 3f)
-}
+enum class MangaCover(private val ratio: Float) {
+    Square(1f / 1f),
+    Book(2f / 3f);
 
-@Composable
-fun MangaCover(
+    @Composable
+    operator fun invoke(
         modifier: Modifier = Modifier,
         data: String?,
-    aspect: MangaCoverAspect,
-    contentDescription: String = "",
-    shape: Shape = RoundedCornerShape(4.dp)
-) {
+        contentDescription: String? = null,
+        shape: Shape? = null
+    ) {
         AsyncImage(
             model = data,
             placeholder = ColorPainter(CoverPlaceholderColor),
+            error = bitmapPainterResource(id = R.drawable.cover_error),
             contentDescription = contentDescription,
             modifier = modifier
-            .aspectRatio(aspect.ratio)
-            .clip(shape),
-        contentScale = ContentScale.Crop
+                .aspectRatio(ratio)
+                .clip(shape ?: RoundedCornerShape(4.dp)),
+            contentScale = ContentScale.Crop,
         )
+    }
 }
 
 private val CoverPlaceholderColor = Color(0x1F888888)

app/src/main/java/eu/kanade/presentation/history/HistoryScreen.kt

@@ -25,7 +25,6 @@ import androidx.paging.compose.items
 import eu.kanade.domain.history.model.HistoryWithRelations
 import eu.kanade.presentation.components.EmptyScreen
 import eu.kanade.presentation.components.MangaCover
-import eu.kanade.presentation.components.MangaCoverAspect
 import eu.kanade.presentation.util.horizontalPadding
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
@@ -168,12 +167,11 @@ fun HistoryItem(
             .padding(horizontal = horizontalPadding, vertical = 8.dp),
         verticalAlignment = Alignment.CenterVertically,
     ) {
-        MangaCover(
+        MangaCover.Book(
             modifier = Modifier
                 .fillMaxHeight()
                 .clickable(onClick = onClickCover),
             data = history.thumbnailUrl,
-            aspect = MangaCoverAspect.COVER
         )
         Column(
             modifier = Modifier

app/src/main/java/eu/kanade/presentation/util/Resources.kt

@@ -1,8 +1,14 @@
 package eu.kanade.presentation.util
 
+import android.content.res.Resources
+import androidx.annotation.DrawableRes
 import androidx.annotation.PluralsRes
 import androidx.compose.runtime.Composable
+import androidx.compose.ui.graphics.asImageBitmap
+import androidx.compose.ui.graphics.painter.BitmapPainter
 import androidx.compose.ui.platform.LocalContext
+import androidx.core.content.ContextCompat
+import androidx.core.graphics.drawable.toBitmap
 
 /**
  * Load a quantity string resource.
@@ -30,3 +36,19 @@ fun quantityStringResource(@PluralsRes id: Int, quantity: Int, vararg formatArgs
     val context = LocalContext.current
     return context.resources.getQuantityString(id, quantity, *formatArgs)
 }
+
+/**
+ * Create a BitmapPainter from an drawable resource.
+ *
+ * > Only use this if [androidx.compose.ui.res.painterResource] doesn't work.
+ *
+ * @param id the resource identifier
+ * @return the bitmap associated with the resource
+ */
+@Composable
+fun bitmapPainterResource(@DrawableRes id: Int): BitmapPainter {
+    val context = LocalContext.current
+    val drawable = ContextCompat.getDrawable(context, id)
+        ?: throw Resources.NotFoundException()
+    return BitmapPainter(drawable.toBitmap().asImageBitmap())
+}