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Fix webtoon mode not calling OnPageSelected in some cases (in upstream too)

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This fix isn't 100% tested, but like 80%.

@arkon if you're reading this, this issue is happening up stream too. I can make a issue for it in the repo but haven't checked if it happens there:

Steps:
Get Cubari source, search "cubari:imgur/3iOqiIy" change to continuous vertical, crop borders. Then back out and open the chapter again. onPageSelected isn't called because recycler position is -1. Regardless of the 4 pages you should be on

also fyi just a slight scroll fixes this issue but still

(cherry picked from commit 88fd6e5c9897d4a528f93dd02cfa2a4c644a799d)
This commit is contained in:
Jays2Kings 2021-04-14 00:02:56 -04:00 committed by arkon
parent c749e50bec
commit 5f0493f1e5
1 changed files with 17 additions and 10 deletions
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27
app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/webtoon/WebtoonViewer.kt
View file

@ -79,16 +79,7 @@ class WebtoonViewer(val activity: ReaderActivity, val isContinuous: Boolean = tr
recycler.addOnScrollListener(
object : RecyclerView.OnScrollListener() {
override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
val position = layoutManager.findLastEndVisibleItemPosition()
val item = adapter.items.getOrNull(position)
val allowPreload = checkAllowPreload(item as? ReaderPage)
if (item != null && currentPage != item) {
currentPage = item
when (item) {
is ReaderPage -> onPageSelected(item, allowPreload)
is ChapterTransition -> onTransitionSelected(item)
}
}
onScrolled()
if (dy < 0) {
val firstIndex = layoutManager.findFirstVisibleItemPosition()
@ -243,11 +234,27 @@ class WebtoonViewer(val activity: ReaderActivity, val isContinuous: Boolean = tr
val position = adapter.items.indexOf(page)
if (position != -1) {
recycler.scrollToPosition(position)
if (layoutManager.findLastEndVisibleItemPosition() == -1) {
onScrolled(position)
}
} else {
Timber.d("Page $page not found in adapter")
}
}
fun onScrolled(pos: Int? = null) {
val position = pos ?: layoutManager.findLastEndVisibleItemPosition()
val item = adapter.items.getOrNull(position)
val allowPreload = checkAllowPreload(item as? ReaderPage)
if (item != null && currentPage != item) {
currentPage = item
when (item) {
is ReaderPage -> onPageSelected(item, allowPreload)
is ChapterTransition -> onTransitionSelected(item)
}
}
}
/**
* Scrolls up by [scrollDistance].
*/