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SnapshotTestCaseContext.kt
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SnapshotTestCaseContext.kt
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package com.airbnb.lottie.snapshots
import android.content.Context
import android.graphics.Bitmap
import android.graphics.BitmapFactory
import android.graphics.Canvas
import android.graphics.Color
import android.graphics.PorterDuff
import android.util.Log
import android.view.View
import android.view.ViewGroup
import android.widget.FrameLayout
import android.widget.ImageView
import android.widget.LinearLayout
import androidx.compose.runtime.Composable
import androidx.compose.ui.platform.ComposeView
import androidx.core.view.doOnLayout
import com.airbnb.lottie.FontAssetDelegate
import com.airbnb.lottie.LottieAnimationView
import com.airbnb.lottie.LottieComposition
import com.airbnb.lottie.LottieCompositionFactory
import com.airbnb.lottie.LottieDrawable
import com.airbnb.lottie.RenderMode
import com.airbnb.lottie.model.LottieCompositionCache
import com.airbnb.lottie.snapshots.utils.BitmapPool
import com.airbnb.lottie.snapshots.utils.HappoSnapshotter
import com.airbnb.lottie.snapshots.utils.ObjectPool
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.suspendCancellableCoroutine
import kotlinx.coroutines.sync.Mutex
import kotlinx.coroutines.withContext
import kotlin.coroutines.resume
private val ActivityContentLock = Mutex()
/**
* Set of properties that are available to all [SnapshotTestCase] runs.
*/
interface SnapshotTestCaseContext {
val context: Context
val snapshotter: HappoSnapshotter
val bitmapPool: BitmapPool
val animationViewPool: ObjectPool<LottieAnimationView>
val filmStripViewPool: ObjectPool<FilmStripView>
fun onActivity(callback: (SnapshotTestActivity) -> Unit)
}
@Suppress("unused")
fun SnapshotTestCaseContext.log(message: String) {
Log.d("LottieTestCase", message)
}
suspend fun SnapshotTestCaseContext.withDrawable(
assetName: String,
snapshotName: String,
snapshotVariant: String,
callback: (LottieDrawable) -> Unit,
) {
val result = LottieCompositionFactory.fromAssetSync(context, assetName)
val composition = result.value ?: throw IllegalArgumentException("Unable to parse $assetName.", result.exception)
val drawable = LottieDrawable()
drawable.composition = composition
callback(drawable)
val bitmap = bitmapPool.acquire(drawable.intrinsicWidth, drawable.intrinsicHeight)
val canvas = Canvas(bitmap)
log("Drawing $assetName")
drawable.draw(canvas)
snapshotter.record(bitmap, snapshotName, snapshotVariant)
LottieCompositionCache.getInstance().clear()
bitmapPool.release(bitmap)
}
suspend fun SnapshotTestCaseContext.withAnimationView(
assetName: String,
snapshotName: String = assetName,
snapshotVariant: String = "default",
widthPx: Int = context.resources.displayMetrics.widthPixels,
heightPx: Int = context.resources.displayMetrics.heightPixels,
renderHardwareAndSoftware: Boolean = false,
callback: (LottieAnimationView) -> Unit,
) {
val result = LottieCompositionFactory.fromAssetSync(context, assetName)
val composition = result.value ?: throw IllegalArgumentException("Unable to parse $assetName.", result.exception)
val animationView = animationViewPool.acquire()
animationView.setComposition(composition)
animationView.layoutParams = FrameLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT)
animationView.scale = 1f
animationView.scaleType = ImageView.ScaleType.FIT_CENTER
callback(animationView)
val animationViewContainer = animationView.parent as ViewGroup
val widthSpec = View.MeasureSpec.makeMeasureSpec(
widthPx,
View.MeasureSpec.EXACTLY,
)
val heightSpec: Int = View.MeasureSpec.makeMeasureSpec(
heightPx,
View.MeasureSpec.EXACTLY,
)
animationViewContainer.measure(widthSpec, heightSpec)
animationViewContainer.layout(0, 0, animationViewContainer.measuredWidth, animationViewContainer.measuredHeight)
val bitmap = bitmapPool.acquire(animationView.width, animationView.height)
val canvas = Canvas(bitmap)
if (renderHardwareAndSoftware) {
log("Drawing $assetName - hardware")
val renderMode = animationView.renderMode
animationView.renderMode = RenderMode.HARDWARE
animationView.draw(canvas)
snapshotter.record(bitmap, snapshotName, "$snapshotVariant - Hardware")
bitmap.eraseColor(0)
animationView.renderMode = RenderMode.SOFTWARE
animationView.draw(canvas)
animationViewPool.release(animationView)
snapshotter.record(bitmap, snapshotName, "$snapshotVariant - Software")
animationView.renderMode = renderMode
} else {
log("Drawing $assetName")
animationView.draw(canvas)
animationViewPool.release(animationView)
snapshotter.record(bitmap, snapshotName, snapshotVariant)
}
bitmapPool.release(bitmap)
}
suspend fun SnapshotTestCaseContext.withFilmStripView(
assetName: String,
snapshotName: String = assetName,
snapshotVariant: String = "default",
callback: (FilmStripView) -> Unit,
) {
val result = LottieCompositionFactory.fromAssetSync(context, assetName)
val composition = result.value ?: throw IllegalArgumentException("Unable to parse $assetName.", result.exception)
snapshotComposition(snapshotName, snapshotVariant, composition, callback)
}
suspend fun SnapshotTestCaseContext.snapshotComposition(
name: String,
variant: String = "default",
composition: LottieComposition,
callback: ((FilmStripView) -> Unit)? = null,
) = withContext(Dispatchers.Default) {
log("Snapshotting $name")
val spec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED)
val filmStripView = filmStripViewPool.acquire()
filmStripView.setOutlineMasksAndMattes(false)
filmStripView.setApplyingOpacityToLayersEnabled(false)
filmStripView.setImageAssetDelegate { BitmapFactory.decodeResource(context.resources, R.drawable.airbnb) }
filmStripView.setFontAssetDelegate(object : FontAssetDelegate() {
override fun getFontPath(fontFamily: String?): String {
return "fonts/Roboto.ttf"
}
})
callback?.invoke(filmStripView)
filmStripView.measure(spec, spec)
filmStripView.layout(0, 0, filmStripView.measuredWidth, filmStripView.measuredHeight)
val bitmap = bitmapPool.acquire(filmStripView.width, filmStripView.height)
val canvas = Canvas(bitmap)
filmStripView.setComposition(composition, name)
canvas.drawColor(Color.BLACK, PorterDuff.Mode.CLEAR)
withContext(Dispatchers.Main) {
log("Drawing $name")
filmStripView.draw(canvas)
}
filmStripViewPool.release(filmStripView)
LottieCompositionCache.getInstance().clear()
snapshotter.record(bitmap, name, variant)
bitmapPool.release(bitmap)
}
fun SnapshotTestCaseContext.loadCompositionFromAssetsSync(fileName: String): LottieComposition {
return LottieCompositionFactory.fromAssetSync(context, fileName).value!!
}
suspend fun SnapshotTestCaseContext.snapshotComposable(
name: String,
variant: String = "default",
renderHardwareAndSoftware: Boolean = false,
content: @Composable (RenderMode) -> Unit,
) = withContext(Dispatchers.Default) {
log("Snapshotting $name")
val composeView = ComposeView(context)
composeView.layoutParams = LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT)
var bitmap = withContext(Dispatchers.Main) {
composeView.setContent {
content(RenderMode.SOFTWARE)
}
suspendCancellableCoroutine<Bitmap> { cont ->
composeView.doOnLayout {
log("Drawing $name")
val b = bitmapPool.acquire(composeView.width, composeView.height)
val canvas = Canvas(b)
composeView.draw(canvas)
cont.resume(b)
}
onActivity { activity ->
activity.binding.content.addView(composeView)
}
}
}
onActivity { activity ->
activity.binding.content.removeView(composeView)
}
snapshotter.record(bitmap, name, if (renderHardwareAndSoftware) "$variant - Software" else variant)
bitmapPool.release(bitmap)
if (renderHardwareAndSoftware) {
bitmap = withContext(Dispatchers.Main) {
composeView.setContent {
content(RenderMode.HARDWARE)
}
suspendCancellableCoroutine { cont ->
composeView.doOnLayout {
log("Drawing $name")
val b = bitmapPool.acquire(composeView.width, composeView.height)
val canvas = Canvas(b)
composeView.draw(canvas)
cont.resume(b)
}
onActivity { activity ->
activity.binding.content.addView(composeView)
}
}
}
onActivity { activity ->
activity.binding.content.removeView(composeView)
}
snapshotter.record(bitmap, name, "$variant - Hardware")
bitmapPool.release(bitmap)
}
LottieCompositionCache.getInstance().clear()
}