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Minor MarkwonImagePlugin updates

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This commit is contained in:
topjohnwu 2020-08-15 23:20:49 -07:00
parent 72e7605fce
commit 7f225b3973
1 changed files with 21 additions and 19 deletions
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40
app/src/main/java/com/topjohnwu/magisk/core/utils/MarkwonImagePlugin.kt
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@ -17,13 +17,12 @@ import com.caverock.androidsvg.SVG
import com.caverock.androidsvg.SVGParseException import com.caverock.androidsvg.SVGParseException
import com.topjohnwu.magisk.core.ResMgr import com.topjohnwu.magisk.core.ResMgr
import com.topjohnwu.superuser.internal.WaitRunnable import com.topjohnwu.superuser.internal.WaitRunnable
import io.noties.markwon.* import io.noties.markwon.AbstractMarkwonPlugin
import io.noties.markwon.MarkwonSpansFactory
import io.noties.markwon.image.* import io.noties.markwon.image.*
import io.noties.markwon.image.data.DataUriSchemeHandler import io.noties.markwon.image.data.DataUriSchemeHandler
import io.noties.markwon.image.network.OkHttpNetworkSchemeHandler import io.noties.markwon.image.network.OkHttpNetworkSchemeHandler
import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.*
import kotlinx.coroutines.launch
import kotlinx.coroutines.runBlocking
import okhttp3.OkHttpClient import okhttp3.OkHttpClient
import org.commonmark.node.Image import org.commonmark.node.Image
import timber.log.Timber import timber.log.Timber
@ -43,7 +42,11 @@ import java.io.InputStream
class MarkwonImagePlugin(okHttp: OkHttpClient) : AbstractMarkwonPlugin() { class MarkwonImagePlugin(okHttp: OkHttpClient) : AbstractMarkwonPlugin() {
override fun configureSpansFactory(builder: MarkwonSpansFactory.Builder) { override fun configureSpansFactory(builder: MarkwonSpansFactory.Builder) {
builder.setFactory(Image::class.java, ImageSpanFactory()) builder.setFactory(Image::class.java) { _, props ->
val dest = ImageProps.DESTINATION.require(props)
val size = ImageProps.IMAGE_SIZE.get(props)
ImageSpan(dest, size)
}
} }
@WorkerThread @WorkerThread
@ -62,9 +65,10 @@ class MarkwonImagePlugin(okHttp: OkHttpClient) : AbstractMarkwonPlugin() {
} }
tv.post(wr) tv.post(wr)
runBlocking(Dispatchers.IO) { runBlocking {
// Download and decode all drawables in parallel // Wait for drawable to be set
spans.forEach { launch { it.load() } } spans.forEach { it.await() }
// Wait for canvasWidth to be set
wr.waitUntilDone() wr.waitUntilDone()
} }
} }
@ -132,27 +136,25 @@ class MarkwonImagePlugin(okHttp: OkHttpClient) : AbstractMarkwonPlugin() {
return drawable return drawable
} }
inner class ImageSpanFactory : SpanFactory {
override fun getSpans(configuration: MarkwonConfiguration, props: RenderProps): Any? {
val dest = ImageProps.DESTINATION.require(props)
val size = ImageProps.IMAGE_SIZE.get(props)
return ImageSpan(dest, size)
}
}
inner class ImageSpan( inner class ImageSpan(
private val dest: String, dest: String,
private val size: ImageSize? private val size: ImageSize?
) : DynamicDrawableSpan(ALIGN_BOTTOM) { ) : DynamicDrawableSpan(ALIGN_BOTTOM) {
var canvasWidth = 0 var canvasWidth = 0
private var measured = false private var measured = false
private lateinit var draw: Drawable private lateinit var draw: Drawable
private val job: Job
fun load() { init {
draw = loadDrawable(dest) ?: ShapeDrawable() // Asynchronously download/decode images in the background
job = GlobalScope.launch(Dispatchers.IO) {
draw = loadDrawable(dest) ?: ShapeDrawable()
}
} }
suspend fun await() = job.join()
override fun getDrawable() = draw override fun getDrawable() = draw
private fun defaultBounds(): Rect { private fun defaultBounds(): Rect {