Change cover placeholder (#6756)

app/src/main/java/eu/kanade/tachiyomi/widget/StateImageViewTarget.kt

@@ -1,43 +0,0 @@
-package eu.kanade.tachiyomi.widget
-
-import android.graphics.drawable.Drawable
-import android.view.View
-import android.widget.ImageView
-import androidx.core.view.isVisible
-import coil.drawable.CrossfadeDrawable
-import coil.target.ImageViewTarget
-
-/**
- * A Coil target to display an image with an optional view to show while loading.
- *
- * @param target the view where the image will be loaded
- * @param progress the view to show when the image is loading.
- * @param crossfadeDuration duration in millisecond to crossfade the result drawable
- */
-class StateImageViewTarget(
-    private val target: ImageView,
-    private val progress: View,
-    private val crossfadeDuration: Int = 0
-) : ImageViewTarget(target) {
-    override fun onStart(placeholder: Drawable?) {
-        progress.isVisible = true
-    }
-
-    override fun onSuccess(result: Drawable) {
-        progress.isVisible = false
-        if (crossfadeDuration > 0) {
-            val crossfadeResult = CrossfadeDrawable(target.drawable, result, durationMillis = crossfadeDuration)
-            target.setImageDrawable(crossfadeResult)
-            crossfadeResult.start()
-        } else {
-            target.setImageDrawable(result)
-        }
-    }
-
-    override fun onError(error: Drawable?) {
-        progress.isVisible = false
-        if (error != null) {
-            target.setImageDrawable(error)
-        }
-    }
-}