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ReaderViewModel: Fix saved state (#9807)

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Also save page index

(cherry picked from commit af0fdfa3b7e859db54154473a8cd4c7b50121ca7)
This commit is contained in:
Ivan Iskandar 2023-08-05 20:47:02 +07:00 committed by Jobobby04
parent 9e7748c84b
commit ac5569929d
1 changed files with 16 additions and 3 deletions
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19
app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderViewModel.kt
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@ -102,8 +102,8 @@ import java.util.Date
/**
* Presenter used by the activity to perform background operations.
*/
class ReaderViewModel(
private val savedState: SavedStateHandle = SavedStateHandle(),
class ReaderViewModel @JvmOverloads constructor(
private val savedState: SavedStateHandle,
private val sourceManager: SourceManager = Injekt.get(),
private val downloadManager: DownloadManager = Injekt.get(),
private val downloadProvider: DownloadProvider = Injekt.get(),
@ -150,6 +150,15 @@ class ReaderViewModel(
field = value
}
/**
* The visible page index of the currently loaded chapter. Used to restore from process kill.
*/
private var chapterPageIndex = savedState.get<Int>("page_index") ?: -1
set(value) {
savedState["page_index"] = value
field = value
}
/**
* The chapter loader for the loaded manga. It'll be null until [manga] is set.
*/
@ -254,7 +263,10 @@ class ReaderViewModel(
.drop(1) // allow the loader to set the first page and chapter id
// SY <-
.onEach { currentChapter ->
if (!currentChapter.chapter.read) {
if (chapterPageIndex >= 0) {
// Restore from SavedState
currentChapter.requestedPage = chapterPageIndex
} else if (!currentChapter.chapter.read) {
currentChapter.requestedPage = currentChapter.chapter.last_page_read
}
chapterId = currentChapter.chapter.id!!
@ -588,6 +600,7 @@ class ReaderViewModel(
it.copy(currentPage = pageIndex + 1)
}
readerChapter.requestedPage = pageIndex
chapterPageIndex = pageIndex
if (!incognitoMode && page.status != Page.State.ERROR) {
readerChapter.chapter.last_page_read = pageIndex