Animated source placeholder

app/src/main/kotlin/org/koitharu/kotatsu/core/ui/image/AnimatedFaviconDrawable.kt

@@ -0,0 +1,72 @@
+package org.koitharu.kotatsu.core.ui.image
+
+import android.animation.TimeAnimator
+import android.content.Context
+import android.graphics.Canvas
+import android.graphics.drawable.Animatable
+import androidx.annotation.StyleRes
+import androidx.interpolator.view.animation.FastOutSlowInInterpolator
+import com.google.android.material.animation.ArgbEvaluatorCompat
+import com.google.android.material.color.MaterialColors
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.util.KotatsuColors
+import org.koitharu.kotatsu.core.util.ext.getAnimationDuration
+import kotlin.math.abs
+
+class AnimatedFaviconDrawable(
+	context: Context,
+	@StyleRes styleResId: Int,
+	name: String,
+) : FaviconDrawable(context, styleResId, name), Animatable, TimeAnimator.TimeListener {
+
+	private val interpolator = FastOutSlowInInterpolator()
+	private val period = context.getAnimationDuration(R.integer.config_longAnimTime) * 2
+	private val timeAnimator = TimeAnimator()
+
+	private val colorHigh = MaterialColors.harmonize(KotatsuColors.random(name), colorBackground)
+	private val colorLow = ArgbEvaluatorCompat.getInstance().evaluate(0.3f, colorHigh, colorBackground)
+
+	init {
+		timeAnimator.setTimeListener(this)
+		updateColor()
+	}
+
+	override fun draw(canvas: Canvas) {
+		if (!isRunning && period > 0) {
+			updateColor()
+			start()
+		}
+		super.draw(canvas)
+	}
+
+	override fun setAlpha(alpha: Int) = Unit
+
+	override fun getAlpha(): Int = 255
+
+	override fun onTimeUpdate(animation: TimeAnimator?, totalTime: Long, deltaTime: Long) {
+		callback?.also {
+			updateColor()
+			it.invalidateDrawable(this)
+		} ?: stop()
+	}
+
+	override fun start() {
+		timeAnimator.start()
+	}
+
+	override fun stop() {
+		timeAnimator.end()
+	}
+
+	override fun isRunning(): Boolean = timeAnimator.isStarted
+
+	private fun updateColor() {
+		if (period <= 0f) {
+			return
+		}
+		val ph = period / 2
+		val fraction = abs((System.currentTimeMillis() % period) - ph) / ph.toFloat()
+		colorForeground = ArgbEvaluatorCompat.getInstance()
+			.evaluate(interpolator.getInterpolation(fraction), colorLow, colorHigh)
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/core/ui/image/FaviconDrawable.kt

@@ -17,18 +17,18 @@ import com.google.android.material.color.MaterialColors
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.util.KotatsuColors
 
-class FaviconDrawable(
+open class FaviconDrawable(
 	context: Context,
 	@StyleRes styleResId: Int,
 	name: String,
 ) : Drawable() {
 
 	private val paint = Paint(Paint.ANTI_ALIAS_FLAG)
-	private var colorBackground = Color.WHITE
+	protected var colorBackground = Color.WHITE
+	protected var colorForeground = Color.DKGRAY
 	private var colorStroke = Color.LTGRAY
 	private val letter = name.take(1).uppercase()
 	private var cornerSize = 0f
-	private var colorForeground = Color.DKGRAY
 	private val textBounds = Rect()
 	private val tempRect = Rect()
 	private val boundsF = RectF()

app/src/main/kotlin/org/koitharu/kotatsu/explore/ui/adapter/ExploreAdapterDelegates.kt

@@ -9,6 +9,7 @@ import org.koitharu.kotatsu.core.model.getSummary
 import org.koitharu.kotatsu.core.model.getTitle
 import org.koitharu.kotatsu.core.parser.favicon.faviconUri
 import org.koitharu.kotatsu.core.ui.BaseListAdapter
+import org.koitharu.kotatsu.core.ui.image.AnimatedFaviconDrawable
 import org.koitharu.kotatsu.core.ui.image.FaviconDrawable
 import org.koitharu.kotatsu.core.ui.image.TrimTransformation
 import org.koitharu.kotatsu.core.ui.list.AdapterDelegateClickListenerAdapter
@@ -126,7 +127,7 @@ fun exploreSourceListItemAD(
 		val fallbackIcon = FaviconDrawable(context, R.style.FaviconDrawable_Small, item.source.name)
 		binding.imageViewIcon.newImageRequest(lifecycleOwner, item.source.faviconUri())?.run {
 			fallback(fallbackIcon)
-			placeholder(fallbackIcon)
+			placeholder(AnimatedFaviconDrawable(context, R.style.FaviconDrawable_Small, item.source.name))
 			error(fallbackIcon)
 			source(item.source)
 			enqueueWith(coil)
@@ -160,7 +161,7 @@ fun exploreSourceGridItemAD(
 		val fallbackIcon = FaviconDrawable(context, R.style.FaviconDrawable_Large, item.source.name)
 		binding.imageViewIcon.newImageRequest(lifecycleOwner, item.source.faviconUri())?.run {
 			fallback(fallbackIcon)
-			placeholder(fallbackIcon)
+			placeholder(AnimatedFaviconDrawable(context, R.style.FaviconDrawable_Large, item.source.name))
 			error(fallbackIcon)
 			source(item.source)
 			enqueueWith(coil)

app/src/main/kotlin/org/koitharu/kotatsu/search/ui/suggestion/adapter/SearchSuggestionSourceAD.kt

@@ -7,6 +7,7 @@ import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.model.getSummary
 import org.koitharu.kotatsu.core.model.getTitle
 import org.koitharu.kotatsu.core.parser.favicon.faviconUri
+import org.koitharu.kotatsu.core.ui.image.AnimatedFaviconDrawable
 import org.koitharu.kotatsu.core.ui.image.FaviconDrawable
 import org.koitharu.kotatsu.core.util.ext.enqueueWith
 import org.koitharu.kotatsu.core.util.ext.newImageRequest
@@ -37,7 +38,7 @@ fun searchSuggestionSourceAD(
 		val fallbackIcon = FaviconDrawable(context, R.style.FaviconDrawable_Small, item.source.name)
 		binding.imageViewCover.newImageRequest(lifecycleOwner, item.source.faviconUri())?.run {
 			fallback(fallbackIcon)
-			placeholder(fallbackIcon)
+			placeholder(AnimatedFaviconDrawable(context, R.style.FaviconDrawable_Small, item.source.name))
 			error(fallbackIcon)
 			source(item.source)
 			enqueueWith(coil)

app/src/main/kotlin/org/koitharu/kotatsu/search/ui/suggestion/adapter/SearchSuggestionSourceTipAD.kt

@@ -7,6 +7,7 @@ import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.model.getSummary
 import org.koitharu.kotatsu.core.model.getTitle
 import org.koitharu.kotatsu.core.parser.favicon.faviconUri
+import org.koitharu.kotatsu.core.ui.image.AnimatedFaviconDrawable
 import org.koitharu.kotatsu.core.ui.image.FaviconDrawable
 import org.koitharu.kotatsu.core.util.ext.enqueueWith
 import org.koitharu.kotatsu.core.util.ext.newImageRequest
@@ -34,7 +35,7 @@ fun searchSuggestionSourceTipAD(
 			val fallbackIcon = FaviconDrawable(context, R.style.FaviconDrawable_Small, item.source.name)
 			binding.imageViewCover.newImageRequest(lifecycleOwner, item.source.faviconUri())?.run {
 				fallback(fallbackIcon)
-				placeholder(fallbackIcon)
+				placeholder(AnimatedFaviconDrawable(context, R.style.FaviconDrawable_Small, item.source.name))
 				error(fallbackIcon)
 				source(item.source)
 				enqueueWith(coil)

app/src/main/kotlin/org/koitharu/kotatsu/settings/sources/adapter/SourceConfigAdapterDelegates.kt

@@ -14,6 +14,7 @@ import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.model.getSummary
 import org.koitharu.kotatsu.core.model.getTitle
 import org.koitharu.kotatsu.core.parser.favicon.faviconUri
+import org.koitharu.kotatsu.core.ui.image.AnimatedFaviconDrawable
 import org.koitharu.kotatsu.core.ui.image.FaviconDrawable
 import org.koitharu.kotatsu.core.ui.list.OnTipCloseListener
 import org.koitharu.kotatsu.core.util.ext.crossfade
@@ -62,7 +63,7 @@ fun sourceConfigItemDelegate2(
 		binding.imageViewIcon.newImageRequest(lifecycleOwner, item.source.faviconUri())?.run {
 			crossfade(context)
 			error(fallbackIcon)
-			placeholder(fallbackIcon)
+			placeholder(AnimatedFaviconDrawable(context, R.style.FaviconDrawable_Small, item.source.name))
 			fallback(fallbackIcon)
 			source(item.source)
 			enqueueWith(coil)

app/src/main/kotlin/org/koitharu/kotatsu/settings/sources/catalog/SourceCatalogItemAD.kt

@@ -1,9 +1,7 @@
 package org.koitharu.kotatsu.settings.sources.catalog
 
 import androidx.core.content.ContextCompat
-import androidx.core.view.ViewCompat
 import androidx.core.view.isVisible
-import androidx.core.view.updatePadding
 import androidx.lifecycle.LifecycleOwner
 import coil.ImageLoader
 import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
@@ -12,16 +10,15 @@ import org.koitharu.kotatsu.browser.cloudflare.CaptchaNotifier.Companion.ignoreC
 import org.koitharu.kotatsu.core.model.getSummary
 import org.koitharu.kotatsu.core.model.getTitle
 import org.koitharu.kotatsu.core.parser.favicon.faviconUri
+import org.koitharu.kotatsu.core.ui.image.AnimatedFaviconDrawable
 import org.koitharu.kotatsu.core.ui.image.FaviconDrawable
 import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
-import org.koitharu.kotatsu.core.ui.util.WindowInsetsDelegate
 import org.koitharu.kotatsu.core.util.ext.crossfade
 import org.koitharu.kotatsu.core.util.ext.drawableStart
 import org.koitharu.kotatsu.core.util.ext.enqueueWith
 import org.koitharu.kotatsu.core.util.ext.newImageRequest
 import org.koitharu.kotatsu.core.util.ext.setTextAndVisible
 import org.koitharu.kotatsu.core.util.ext.source
-import org.koitharu.kotatsu.databinding.ItemCatalogPageBinding
 import org.koitharu.kotatsu.databinding.ItemEmptyHintBinding
 import org.koitharu.kotatsu.databinding.ItemSourceCatalogBinding
 import org.koitharu.kotatsu.list.ui.model.ListModel
@@ -55,7 +52,7 @@ fun sourceCatalogItemSourceAD(
 		binding.imageViewIcon.newImageRequest(lifecycleOwner, item.source.faviconUri())?.run {
 			crossfade(context)
 			error(fallbackIcon)
-			placeholder(fallbackIcon)
+			placeholder(AnimatedFaviconDrawable(context, R.style.FaviconDrawable_Small, item.source.name))
 			fallback(fallbackIcon)
 			source(item.source)
 			ignoreCaptchaErrors()
@@ -79,30 +76,3 @@ fun sourceCatalogItemHintAD(
 		binding.textSecondary.setTextAndVisible(item.text)
 	}
 }
-
-fun sourceCatalogPageAD(
-	listener: OnListItemClickListener<SourceCatalogItem.Source>,
-	coil: ImageLoader,
-	lifecycleOwner: LifecycleOwner,
-) = adapterDelegateViewBinding<SourceCatalogPage, SourceCatalogPage, ItemCatalogPageBinding>(
-	{ inflater, parent -> ItemCatalogPageBinding.inflate(inflater, parent, false) },
-) {
-
-	val sourcesAdapter = SourcesCatalogAdapter(listener, coil, lifecycleOwner)
-	with(binding.recyclerView) {
-		setHasFixedSize(true)
-		adapter = sourcesAdapter
-	}
-	val insetsDelegate = WindowInsetsDelegate()
-	ViewCompat.setOnApplyWindowInsetsListener(itemView, insetsDelegate)
-	itemView.addOnLayoutChangeListener(insetsDelegate)
-	insetsDelegate.addInsetsListener { insets ->
-		binding.recyclerView.updatePadding(
-			bottom = insets.bottom + binding.recyclerView.paddingTop,
-		)
-	}
-
-	bind {
-		sourcesAdapter.items = item.items
-	}
-}