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@ -4,6 +4,8 @@ import android.net.Uri
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import androidx.core.net.toUri
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import com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView
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import kotlinx.coroutines.*
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import org.koitharu.kotatsu.core.exceptions.resolve.ExceptionResolver
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import org.koitharu.kotatsu.core.exceptions.resolve.ResolvableException
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import org.koitharu.kotatsu.core.model.MangaPage
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import org.koitharu.kotatsu.core.model.ZoomMode
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import org.koitharu.kotatsu.core.prefs.AppSettings
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@ -16,39 +18,52 @@ import java.io.IOException
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class PageHolderDelegate(
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private val loader: PageLoader,
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private val settings: AppSettings,
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private val callback: Callback
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private val callback: Callback,
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private val exceptionResolver: ExceptionResolver
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) : SubsamplingScaleImageView.DefaultOnImageEventListener(), CoroutineScope by loader {
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private var state = State.EMPTY
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private var job: Job? = null
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private var file: File? = null
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private var error: Throwable? = null
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fun onBind(page: MangaPage) {
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doLoad(page, force = false)
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job = launchInstead(job) {
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doLoad(page, force = false)
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}
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}
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fun retry(page: MangaPage) {
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doLoad(page, force = true)
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job = launchInstead(job) {
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(error as? ResolvableException)?.let {
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exceptionResolver.resolve(it)
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}
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doLoad(page, force = true)
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}
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}
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fun onRecycle() {
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state = State.EMPTY
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file = null
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error = null
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job?.cancel()
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}
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override fun onReady() {
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state = State.SHOWING
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error = null
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callback.onImageShowing(settings.zoomMode)
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}
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override fun onImageLoaded() {
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state = State.SHOWN
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error = null
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callback.onImageShown()
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}
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override fun onImageLoadError(e: Exception) {
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val file = this.file
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error = e
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if (state == State.LOADED && e is IOException && file != null && file.exists()) {
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job = launchAfter(job) {
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state = State.CONVERTING
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@ -68,25 +83,25 @@ class PageHolderDelegate(
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}
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}
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private fun doLoad(data: MangaPage, force: Boolean) {
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job = launchInstead(job) {
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state = State.LOADING
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callback.onLoadingStarted()
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try {
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val file = withContext(Dispatchers.IO) {
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val pageUrl = data.source.repository.getPageFullUrl(data)
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check(pageUrl.isNotEmpty()) { "Cannot obtain full image url" }
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loader.loadFile(pageUrl, force)
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}
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this@PageHolderDelegate.file = file
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state = State.LOADED
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callback.onImageReady(file.toUri())
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} catch (e: CancellationException) {
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// do nothing
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} catch (e: Exception) {
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state = State.ERROR
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callback.onError(e)
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private suspend fun doLoad(data: MangaPage, force: Boolean) {
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state = State.LOADING
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error = null
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callback.onLoadingStarted()
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try {
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val file = withContext(Dispatchers.IO) {
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val pageUrl = data.source.repository.getPageFullUrl(data)
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check(pageUrl.isNotEmpty()) { "Cannot obtain full image url" }
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loader.loadFile(pageUrl, force)
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}
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this@PageHolderDelegate.file = file
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state = State.LOADED
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callback.onImageReady(file.toUri())
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} catch (e: CancellationException) {
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// do nothing
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} catch (e: Exception) {
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state = State.ERROR
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error = e
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callback.onError(e)
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}
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}
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