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revert: Revert PagerPageHolder refactor
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1 changed files with 207 additions and 74 deletions
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@ -33,13 +33,11 @@ import eu.kanade.tachiyomi.util.system.ImageUtil.isPagePadded
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import eu.kanade.tachiyomi.util.system.ThemeUtil
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import eu.kanade.tachiyomi.util.system.bottomCutoutInset
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import eu.kanade.tachiyomi.util.system.dpToPx
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import eu.kanade.tachiyomi.util.system.e
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import eu.kanade.tachiyomi.util.system.getResourceColor
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import eu.kanade.tachiyomi.util.system.isInNightMode
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import eu.kanade.tachiyomi.util.system.launchIO
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import eu.kanade.tachiyomi.util.system.launchUI
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import eu.kanade.tachiyomi.util.system.topCutoutInset
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import eu.kanade.tachiyomi.util.system.withIOContext
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import eu.kanade.tachiyomi.util.system.withUIContext
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import eu.kanade.tachiyomi.util.view.backgroundColor
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import eu.kanade.tachiyomi.util.view.isVisibleOnScreen
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@ -50,13 +48,13 @@ import kotlinx.coroutines.Job
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import kotlinx.coroutines.MainScope
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import kotlinx.coroutines.flow.collectLatest
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import kotlinx.coroutines.launch
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import kotlinx.coroutines.supervisorScope
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import kotlinx.coroutines.withContext
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import okio.Buffer
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import okio.BufferedSource
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import uy.kohesive.injekt.injectLazy
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import java.io.InputStream
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import kotlin.math.min
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import kotlin.math.roundToInt
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/**
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* View of the ViewPager that contains a page of a chapter.
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@ -89,12 +87,41 @@ class PagerPageHolder(
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*/
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private var loadJob: Job? = null
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/**
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* Job for status changes of the page.
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*/
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private var statusJob: Job? = null
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/**
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* Job for progress changes of the page.
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*/
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private var progressJob: Job? = null
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/**
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* Job for loading the page.
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*/
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private var extraLoadJob: Job? = null
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/**
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* Job for status changes of the page.
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*/
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private var extraStatusJob: Job? = null
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/**
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* Job for progress changes of the page.
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*/
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private var extraProgressJob: Job? = null
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/**
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* Job used to read the header of the image. This is needed in order to instantiate
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* the appropriate image view depending if the image is animated (GIF).
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*/
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private var readImageHeaderJob: Job? = null
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private var status = Page.State.READY
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private var extraStatus = Page.State.READY
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private var progress: Int = 0
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private var extraProgress: Int = 0
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private var scope = MainScope()
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@ -105,8 +132,7 @@ class PagerPageHolder(
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marginStart = ((context.resources.displayMetrics.widthPixels) / 2 + viewer.config.hingeGapSize) / 2
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}
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}
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loadJob = scope.launch { loadPageAndProcessStatus(1) }
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extraLoadJob = scope.launch { loadPageAndProcessStatus(2) }
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launchLoadJob()
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setBackgroundColor(
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when (val theme = viewer.config.readerTheme) {
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ReaderBackgroundColor.SMART_THEME.prefValue -> Color.TRANSPARENT
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@ -163,15 +189,64 @@ class PagerPageHolder(
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*/
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override fun onDetachedFromWindow() {
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super.onDetachedFromWindow()
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loadJob?.cancel()
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loadJob = null
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extraLoadJob?.cancel()
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extraLoadJob = null
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cancelProgressJob(1)
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cancelLoadJob(1)
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cancelProgressJob(2)
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cancelLoadJob(2)
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cancelReadImageHeader()
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(pageView as? SubsamplingScaleImageView)?.setOnImageEventListener(null)
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}
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/**
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* Starts loading the page and processing changes to the page's status.
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*
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* @see processStatus
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*/
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private fun launchLoadJob() {
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loadJob?.cancel()
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statusJob?.cancel()
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val loader = page.chapter.pageLoader ?: return
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loadJob = scope.launch {
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loader.loadPage(page)
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}
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statusJob = scope.launch {
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page.statusFlow.collectLatest { processStatus(it) }
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}
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val extraPage = extraPage ?: return
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extraLoadJob = scope.launch {
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loader.loadPage(extraPage)
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}
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extraStatusJob = scope.launch {
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extraPage.statusFlow.collectLatest { processStatus2(it) }
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}
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}
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private fun launchProgressJob() {
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progressJob?.cancel()
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progressJob = scope.launch {
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page.progressFlow.collectLatest { value ->
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progress = value
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if (extraPage == null) {
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progressBar.setProgress(progress)
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} else {
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progressBar.setProgress(((progress + extraProgress) / 2 * 0.95f).roundToInt())
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}
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}
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}
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}
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private fun launchProgressJob2() {
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val extraPage = extraPage ?: return
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extraProgressJob?.cancel()
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extraProgressJob = scope.launch {
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extraPage.progressFlow.collectLatest { value ->
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extraProgress = value
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progressBar.setProgress(((progress + extraProgress) / 2 * 0.95f).roundToInt())
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}
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}
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}
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fun onPageSelected(forward: Boolean?) {
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(pageView as? SubsamplingScaleImageView)?.apply {
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if (isReady) {
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@ -282,31 +357,92 @@ class PagerPageHolder(
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}
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}
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private suspend fun loadPageAndProcessStatus(index: Int) {
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val page = (if (index == 1) page else extraPage) ?: return
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val loader = page.chapter.pageLoader ?: return
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supervisorScope {
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launchIO {
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loader.loadPage(page)
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/**
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* Called when the status of the page changes.
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*
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* @param status the new status of the page.
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*/
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private fun processStatus(status: Page.State) {
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when (status) {
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Page.State.QUEUE -> setQueued()
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Page.State.LOAD_PAGE -> setLoading()
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Page.State.DOWNLOAD_IMAGE -> {
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launchProgressJob()
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setDownloading()
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}
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page.statusFlow.collectLatest {
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when (status) {
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Page.State.QUEUE -> setQueued()
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Page.State.LOAD_PAGE -> setLoading()
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Page.State.DOWNLOAD_IMAGE -> {
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setDownloading()
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page.progressFlow.collectLatest { value ->
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progressBar.setProgress(value)
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}
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}
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Page.State.READY -> setImage()
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Page.State.ERROR -> setError()
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Page.State.READY -> {
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if (extraStatus == Page.State.READY || extraPage == null) {
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setImage()
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}
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cancelProgressJob(1)
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}
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Page.State.ERROR -> {
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setError()
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cancelProgressJob(1)
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}
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}
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}
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/**
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* Called when the status of the page changes.
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*
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* @param status the new status of the page.
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*/
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private fun processStatus2(status: Page.State) {
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when (status) {
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Page.State.QUEUE -> setQueued()
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Page.State.LOAD_PAGE -> setLoading()
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Page.State.DOWNLOAD_IMAGE -> {
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launchProgressJob2()
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setDownloading()
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}
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Page.State.READY -> {
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if (this.status == Page.State.READY) {
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setImage()
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}
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cancelProgressJob(2)
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}
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Page.State.ERROR -> {
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setError()
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cancelProgressJob(2)
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}
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}
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}
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/**
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* Cancels loading the page and processing changes to the page's status.
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*/
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private fun cancelLoadJob(page: Int) {
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if (page == 1) {
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loadJob?.cancel()
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loadJob = null
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statusJob?.cancel()
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statusJob = null
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} else {
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extraLoadJob?.cancel()
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extraLoadJob = null
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extraStatusJob?.cancel()
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extraStatusJob = null
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}
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}
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private fun cancelProgressJob(page: Int) {
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(if (page == 1) progressJob else extraProgressJob)?.cancel()
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if (page == 1) {
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progressJob = null
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} else {
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extraProgressJob = null
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}
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}
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/**
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* Unsubscribes from the read image header subscription.
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*/
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private fun cancelReadImageHeader() {
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readImageHeaderJob?.cancel()
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readImageHeaderJob = null
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}
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/**
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* Called when the page is queued.
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*/
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@ -334,71 +470,68 @@ class PagerPageHolder(
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/**
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* Called when the page is ready.
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*/
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private suspend fun setImage() {
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private fun setImage() {
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progressBar.isVisible = true
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if (extraPage == null) {
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progressBar.setProgress(0)
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progressBar.completeAndFadeOut()
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} else {
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progressBar.setProgress(95)
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}
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errorLayout?.isVisible = false
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val streamFn = page.stream ?: return
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val streamFn2 = extraPage?.stream
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cancelReadImageHeader()
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try {
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val (source, isAnimated, _bg) = withIOContext {
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streamFn().buffered(16).use { source1 ->
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if (extraPage != null) {
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streamFn2?.invoke()
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?.buffered(16)
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} else {
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null
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}.use { source2 ->
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val actualSource = this@PagerPageHolder.mergeOrSplitPages(
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Buffer().readFrom(source1),
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source2?.let { Buffer().readFrom(it) },
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)
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readImageHeaderJob = scope.launchIO {
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val streamFn = page.stream ?: return@launchIO
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val streamFn2 = extraPage?.stream
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val isAnimated = ImageUtil.isAnimatedAndSupported(actualSource)
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val bgColor = ReaderBackgroundColor.fromPreference(viewer.config.readerTheme)
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val bgType = getBGType(viewer.config.readerTheme, context)
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val background = if (bgColor.isSmartColor) {
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if (!isAnimated) {
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if (page.bg != null && page.bgType == bgType) page.bg
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else {
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var actualSource: BufferedSource? = null
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try {
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val source1 = streamFn().buffered(16).use { Buffer().readFrom(it) }
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val source2 = streamFn2?.invoke()?.buffered(16)?.use { Buffer().readFrom(it) }
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actualSource = this@PagerPageHolder.mergeOrSplitPages(source1, source2)
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val isAnimated = ImageUtil.isAnimatedAndSupported(source1) ||
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(source2?.let { ImageUtil.isAnimatedAndSupported(source2) } ?: false)
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withUIContext {
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val bgColor = ReaderBackgroundColor.fromPreference(viewer.config.readerTheme)
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if (!isAnimated) {
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if (bgColor.isSmartColor) {
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val bgType = getBGType(viewer.config.readerTheme, context)
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if (page.bg != null && page.bgType == bgType) {
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setImage(actualSource, false, imageConfig)
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pageView?.background = page.bg
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}
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// if the user switches to automatic when pages are already cached, the bg needs to be loaded
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else {
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val background =
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try {
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setBG(actualSource.peek().inputStream())
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} catch (e: Exception) {
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Logger.e(e) { e.localizedMessage?.toString() ?: "" }
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ColorDrawable(Color.WHITE)
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}
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}
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} else {
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page.bg
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setImage(actualSource, false, imageConfig)
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pageView?.background = background
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page.bg = pageView?.background
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page.bgType = bgType
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}
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} else {
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null
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setImage(actualSource, false, imageConfig)
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}
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} else {
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setImage(actualSource, true, imageConfig)
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if (bgColor.isSmartColor && page.bg != null) {
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pageView?.background = page.bg
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}
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Triple(actualSource, isAnimated, Pair(background, bgType))
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}
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}
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}
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withUIContext {
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val (bg, bgType) = _bg
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if (bg != null) {
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pageView?.background = bg
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page.bg = pageView?.background
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if (!isAnimated) page.bgType = bgType
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} catch (_: Exception) {
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try {
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actualSource?.let { closeSources(it) }
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} catch (_: Exception) {
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}
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setImage(source, isAnimated, imageConfig)
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}
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} catch (e: Exception) {
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Logger.e(e)
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withUIContext {
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setError()
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}
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}
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}
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