Misc fixes

app/src/main/java/org/koitharu/kotatsu/ui/details/ChaptersFragment.kt

@@ -37,6 +37,7 @@ class ChaptersFragment : BaseFragment(R.layout.fragment_chapters), MangaDetailsV
 				RecyclerView.VERTICAL
 			)
 		)
+		recyclerView_chapters.setHasFixedSize(true)
 		recyclerView_chapters.adapter = adapter
 	}
 

app/src/main/java/org/koitharu/kotatsu/ui/main/list/MangaListFragment.kt

@@ -54,12 +54,14 @@ abstract class MangaListFragment<E> : BaseFragment(R.layout.fragment_list), Mang
 		super.onViewCreated(view, savedInstanceState)
 		drawer?.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED)
 		adapter = MangaListAdapter(this)
+		recyclerView.setHasFixedSize(true)
 		initListMode(settings.listMode)
 		recyclerView.adapter = adapter
 		recyclerView.addOnScrollListener(PaginationScrollListener(4, this))
 		swipeRefreshLayout.setOnRefreshListener {
 			onRequestMoreItems(0)
 		}
+		recyclerView_filter.setHasFixedSize(true)
 		recyclerView_filter.addItemDecoration(ItemTypeDividerDecoration(view.context))
 		recyclerView_filter.addItemDecoration(SectionItemDecoration(false, this))
 		settings.subscribe(this)
@@ -128,10 +130,12 @@ abstract class MangaListFragment<E> : BaseFragment(R.layout.fragment_list), Mang
 		} else {
 			layout_holder.isVisible = false
 		}
+		recyclerView.callOnScrollListeners()
 	}
 
 	override fun onListAppended(list: List<Manga>) {
 		adapter?.appendData(list)
+		recyclerView.callOnScrollListeners()
 	}
 
 	@CallSuper

app/src/main/java/org/koitharu/kotatsu/ui/reader/Action.kt

@@ -0,0 +1,5 @@
+package org.koitharu.kotatsu.ui.reader
+
+enum class ReaderAction {
+	REPLACE, PREPEND, APPEND
+}

app/src/main/java/org/koitharu/kotatsu/ui/reader/BaseReaderFragment.kt

@@ -1,6 +1,7 @@
 package org.koitharu.kotatsu.ui.reader
 
 import android.net.Uri
+import androidx.annotation.CallSuper
 import androidx.annotation.LayoutRes
 import org.koitharu.kotatsu.core.model.MangaChapter
 import org.koitharu.kotatsu.core.model.MangaPage
@@ -51,25 +52,15 @@ abstract class BaseReaderFragment(@LayoutRes contentLayoutId: Int) : BaseFragmen
 		super.onDestroyView()
 	}
 
-	final override fun onPagesLoaded(chapterId: Long, pages: List<MangaPage>) {
-		when {
-			chaptersMap.isEmpty() -> {
-				chaptersMap.push(chapterId to pages.size)
-				onPagesLoaded(chapterId, pages, Action.REPLACE)
-			}
-			shouldAppend(chapterId) -> {
-				chaptersMap.addLast(chapterId to pages.size)
-				onPagesLoaded(chapterId, pages, Action.APPEND)
-			}
-			shouldPrepend(chapterId) -> {
-				chaptersMap.addFirst(chapterId to pages.size)
-				onPagesLoaded(chapterId, pages, Action.PREPEND)
-			}
-			else -> {
+	@CallSuper
+	override fun onPagesLoaded(chapterId: Long, pages: List<MangaPage>, action: ReaderAction) {
+		when (action) {
+			ReaderAction.REPLACE -> {
 				chaptersMap.clear()
-				chaptersMap.push(chapterId to pages.size)
-				onPagesLoaded(chapterId, pages, Action.REPLACE)
+				chaptersMap.add(chapterId to pages.size)
 			}
+			ReaderAction.PREPEND -> chaptersMap.addFirst(chapterId to pages.size)
+			ReaderAction.APPEND -> chaptersMap.addLast(chapterId to pages.size)
 		}
 	}
 
@@ -100,22 +91,6 @@ abstract class BaseReaderFragment(@LayoutRes contentLayoutId: Int) : BaseFragmen
 		return null
 	}
 
-	private fun shouldAppend(chapterId: Long): Boolean {
-		val chapters = lastState?.manga?.chapters ?: return false
-		val lastChapterId = chaptersMap.peekLast()?.first ?: return false
-		val indexOfCurrent = chapters.indexOfLast { x -> x.id == lastChapterId }
-		val indexOfNext = chapters.indexOfLast { x -> x.id == chapterId }
-		return indexOfCurrent != -1 && indexOfNext != -1 && indexOfCurrent + 1 == indexOfNext
-	}
-
-	private fun shouldPrepend(chapterId: Long): Boolean {
-		val chapters = lastState?.manga?.chapters ?: return false
-		val firstChapterId = chaptersMap.peekFirst()?.first ?: return false
-		val indexOfCurrent = chapters.indexOfFirst { x -> x.id == firstChapterId }
-		val indexOfPrev = chapters.indexOfFirst { x -> x.id == chapterId }
-		return indexOfCurrent != -1 && indexOfPrev != -1 && indexOfCurrent + 1 == indexOfPrev
-	}
-
 	protected fun getNextChapterId(): Long {
 		val lastChapterId = chaptersMap.peekLast()?.first ?: return 0
 		val chapters = lastState?.manga?.chapters ?: return 0
@@ -152,10 +127,4 @@ abstract class BaseReaderFragment(@LayoutRes contentLayoutId: Int) : BaseFragmen
 			total = chapter.second
 		)
 	}
-
-	protected abstract fun onPagesLoaded(chapterId: Long, pages: List<MangaPage>, action: Action)
-
-	protected enum class Action {
-		REPLACE, PREPEND, APPEND
-	}
 }

app/src/main/java/org/koitharu/kotatsu/ui/reader/ReaderActivity.kt

@@ -75,7 +75,7 @@ class ReaderActivity : BaseFullscreenActivity(), ReaderView, ChaptersDialog.OnCh
 		}
 
 		if (savedInstanceState?.containsKey(MvpDelegate.MOXY_DELEGATE_TAGS_KEY) != true) {
-			presenter.loadChapter(state.manga, state.chapterId)
+			presenter.loadChapter(state.manga, state.chapterId, ReaderAction.REPLACE)
 		}
 	}
 
@@ -85,7 +85,7 @@ class ReaderActivity : BaseFullscreenActivity(), ReaderView, ChaptersDialog.OnCh
 		}
 	}
 
-	override fun onPagesLoaded(chapterId: Long, pages: List<MangaPage>) = Unit
+	override fun onPagesLoaded(chapterId: Long, pages: List<MangaPage>, action: ReaderAction) = Unit
 
 	override fun onPause() {
 		reader?.let {
@@ -214,7 +214,7 @@ class ReaderActivity : BaseFullscreenActivity(), ReaderView, ChaptersDialog.OnCh
 			chapterId = chapter.id,
 			page = 0
 		)
-		presenter.loadChapter(state.manga, chapter.id)
+		presenter.loadChapter(state.manga, chapter.id, ReaderAction.REPLACE)
 	}
 
 	override fun onPageSelected(page: MangaPage) {

app/src/main/java/org/koitharu/kotatsu/ui/reader/ReaderPresenter.kt

@@ -29,7 +29,7 @@ class ReaderPresenter : BasePresenter<ReaderView>() {
 
 	private var isInitialized = false
 
-	fun loadChapter(manga: Manga, chapterId: Long) {
+	fun loadChapter(manga: Manga, chapterId: Long, action: ReaderAction) {
 		presenterScope.launch {
 			viewState.onLoadingStateChanged(isLoading = true)
 			try {
@@ -60,7 +60,7 @@ class ReaderPresenter : BasePresenter<ReaderView>() {
 						isInitialized = true
 					}
 					withContext(Dispatchers.Main) {
-						viewState.onPagesLoaded(chapterId, pages)
+						viewState.onPagesLoaded(chapterId, pages, action)
 					}
 				}
 			} catch (e: Exception) {

app/src/main/java/org/koitharu/kotatsu/ui/reader/ReaderView.kt

@@ -17,7 +17,7 @@ interface ReaderView : MvpView {
 	fun onChaptersLoader(chapters: List<MangaChapter>)
 
 	@AddToEndSingle
-	fun onPagesLoaded(chapterId: Long, pages: List<MangaPage>)
+	fun onPagesLoaded(chapterId: Long, pages: List<MangaPage>, action: ReaderAction)
 
 	@AddToEndSingle
 	fun onLoadingStateChanged(isLoading: Boolean)

app/src/main/java/org/koitharu/kotatsu/ui/reader/standard/StandardReaderFragment.kt

@@ -6,10 +6,8 @@ import kotlinx.android.synthetic.main.fragment_reader_standard.*
 import moxy.ktx.moxyPresenter
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.model.MangaPage
-import org.koitharu.kotatsu.ui.reader.BaseReaderFragment
-import org.koitharu.kotatsu.ui.reader.OnBoundsScrollListener
-import org.koitharu.kotatsu.ui.reader.PageLoader
-import org.koitharu.kotatsu.ui.reader.ReaderPresenter
+import org.koitharu.kotatsu.ui.reader.*
+import org.koitharu.kotatsu.utils.ext.callOnPageChaneListeners
 import org.koitharu.kotatsu.utils.ext.doOnPageChanged
 
 class StandardReaderFragment : BaseReaderFragment(R.layout.fragment_reader_standard),
@@ -39,9 +37,10 @@ class StandardReaderFragment : BaseReaderFragment(R.layout.fragment_reader_stand
 		super.onDestroyView()
 	}
 
-	override fun onPagesLoaded(chapterId: Long, pages: List<MangaPage>, action: Action) {
+	override fun onPagesLoaded(chapterId: Long, pages: List<MangaPage>, action: ReaderAction) {
+		super.onPagesLoaded(chapterId, pages, action)
 		when (action) {
-			Action.REPLACE -> adapter?.let {
+			ReaderAction.REPLACE -> adapter?.let {
 				it.replaceData(pages)
 				lastState?.let { state ->
 					if (chapterId == state.chapterId) {
@@ -49,13 +48,14 @@ class StandardReaderFragment : BaseReaderFragment(R.layout.fragment_reader_stand
 					}
 				}
 			}
-			Action.PREPEND -> adapter?.run {
+			ReaderAction.PREPEND -> adapter?.run {
 				val pos = pager.currentItem
 				prependData(pages)
 				pager.setCurrentItem(pos + pages.size, false)
 			}
-			Action.APPEND -> adapter?.appendData(pages)
+			ReaderAction.APPEND -> adapter?.appendData(pages)
 		}
+		pager.callOnPageChaneListeners()
 	}
 
 	override fun onDestroy() {
@@ -66,14 +66,14 @@ class StandardReaderFragment : BaseReaderFragment(R.layout.fragment_reader_stand
 	override fun onScrolledToStart() {
 		val prevChapterId = getPrevChapterId()
 		if (prevChapterId != 0L) {
-			presenter.loadChapter(lastState?.manga ?: return, prevChapterId)
+			presenter.loadChapter(lastState?.manga ?: return, prevChapterId, ReaderAction.PREPEND)
 		}
 	}
 
 	override fun onScrolledToEnd() {
 		val nextChapterId = getNextChapterId()
 		if (nextChapterId != 0L) {
-			presenter.loadChapter(lastState?.manga ?: return, nextChapterId)
+			presenter.loadChapter(lastState?.manga ?: return, nextChapterId, ReaderAction.APPEND)
 		}
 	}
 

app/src/main/java/org/koitharu/kotatsu/ui/reader/wetoon/WebtoonReaderFragment.kt

@@ -6,10 +6,8 @@ import kotlinx.android.synthetic.main.fragment_reader_webtoon.*
 import moxy.ktx.moxyPresenter
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.model.MangaPage
-import org.koitharu.kotatsu.ui.reader.BaseReaderFragment
-import org.koitharu.kotatsu.ui.reader.OnBoundsScrollListener
-import org.koitharu.kotatsu.ui.reader.PageLoader
-import org.koitharu.kotatsu.ui.reader.ReaderPresenter
+import org.koitharu.kotatsu.ui.reader.*
+import org.koitharu.kotatsu.utils.ext.callOnScrollListeners
 import org.koitharu.kotatsu.utils.ext.doOnCurrentItemChanged
 import org.koitharu.kotatsu.utils.ext.firstItem
 
@@ -29,14 +27,16 @@ class WebtoonReaderFragment : BaseReaderFragment(R.layout.fragment_reader_webtoo
 	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
 		super.onViewCreated(view, savedInstanceState)
 		adapter = WebtoonAdapter(loader)
+		recyclerView.setHasFixedSize(true)
 		recyclerView.adapter = adapter
 		recyclerView.addOnScrollListener(ListPaginationListener(2, this))
 		recyclerView.doOnCurrentItemChanged(::notifyPageChanged)
 	}
 
-	override fun onPagesLoaded(chapterId: Long, pages: List<MangaPage>, action: Action) {
+	override fun onPagesLoaded(chapterId: Long, pages: List<MangaPage>, action: ReaderAction) {
+		super.onPagesLoaded(chapterId, pages, action)
 		when(action) {
-			Action.REPLACE -> {
+			ReaderAction.REPLACE -> {
 				adapter?.let {
 					it.replaceData(pages)
 					lastState?.let { state ->
@@ -46,22 +46,23 @@ class WebtoonReaderFragment : BaseReaderFragment(R.layout.fragment_reader_webtoo
 					}
 				}
 			}
-			Action.PREPEND -> adapter?.prependData(pages)
-			Action.APPEND -> adapter?.appendData(pages)
+			ReaderAction.PREPEND -> adapter?.prependData(pages)
+			ReaderAction.APPEND -> adapter?.appendData(pages)
 		}
+		recyclerView.callOnScrollListeners()
 	}
 
 	override fun onScrolledToStart() {
 		val prevChapterId = getPrevChapterId()
 		if (prevChapterId != 0L) {
-			presenter.loadChapter(lastState?.manga ?: return, prevChapterId)
+			presenter.loadChapter(lastState?.manga ?: return, prevChapterId, ReaderAction.PREPEND)
 		}
 	}
 
 	override fun onScrolledToEnd() {
 		val nextChapterId = getNextChapterId()
 		if (nextChapterId != 0L) {
-			presenter.loadChapter(lastState?.manga ?: return, nextChapterId)
+			presenter.loadChapter(lastState?.manga ?: return, nextChapterId, ReaderAction.APPEND)
 		}
 	}
 

app/src/main/java/org/koitharu/kotatsu/ui/search/SearchHelper.kt

@@ -4,7 +4,6 @@ import android.app.SearchManager
 import android.content.Context
 import android.database.Cursor
 import android.view.MenuItem
-import android.view.inputmethod.EditorInfo
 import androidx.appcompat.widget.SearchView
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.model.MangaSource
@@ -17,8 +16,6 @@ object SearchHelper {
 		val view = menuItem.actionView as? SearchView ?: return
 		val context = view.context
 		view.queryHint = context.getString(R.string.search_manga)
-		view.imeOptions = EditorInfo.IME_ACTION_SEARCH
-		view.inputType = EditorInfo.TYPE_CLASS_TEXT or EditorInfo.TYPE_TEXT_VARIATION_SHORT_MESSAGE
 		view.suggestionsAdapter = MangaSuggestionsProvider.getSuggestionAdapter(context)
 		view.setOnQueryTextListener(QueryListener(context, source))
 		view.setOnSuggestionListener(SuggestionListener(view))

app/src/main/java/org/koitharu/kotatsu/utils/ext/ViewExt.kt

@@ -3,6 +3,7 @@ package org.koitharu.kotatsu.utils.ext
 import android.app.Activity
 import android.graphics.Rect
 import android.graphics.drawable.Drawable
+import android.util.Log
 import android.view.*
 import android.view.inputmethod.InputMethodManager
 import android.widget.EditText
@@ -188,4 +189,34 @@ fun RecyclerView.doOnCurrentItemChanged(callback: (Int) -> Unit) {
 			}
 		}
 	})
+}
+
+fun RecyclerView.callOnScrollListeners() {
+	try {
+		val field = RecyclerView::class.java.getDeclaredField("mScrollListeners")
+		field.isAccessible = true
+		val listeners = field.get(this) as List<*>
+		for (x in listeners) {
+			(x as RecyclerView.OnScrollListener).onScrolled(this, 0, 0)
+		}
+	} catch (e: Throwable) {
+		Log.e(null, "RecyclerView.callOnScrollListeners() failed", e)
+	}
+}
+
+fun ViewPager2.callOnPageChaneListeners() {
+	try {
+		val field = ViewPager2::class.java.getDeclaredField("mExternalPageChangeCallbacks")
+		field.isAccessible = true
+		val compositeCallback = field.get(this)
+		val field2 = compositeCallback.javaClass.getDeclaredField("mCallbacks")
+		field2.isAccessible = true
+		val listeners = field2.get(compositeCallback) as List<*>
+		val position = currentItem
+		for (x in listeners) {
+			(x as ViewPager2.OnPageChangeCallback).onPageSelected(position)
+		}
+	} catch (e: Throwable) {
+		Log.e(null, "ViewPager2.callOnPageChaneListeners() failed", e)
+	}
 }

app/src/main/res/layout/item_manga_list_details.xml

@@ -42,18 +42,21 @@
 			<TextView
 				android:id="@+id/textView_subtitle"
 				android:layout_width="match_parent"
-				android:layout_height="0dp"
+				android:layout_height="wrap_content"
 				android:layout_marginStart="6dp"
 				android:layout_marginTop="4dp"
 				android:layout_marginEnd="6dp"
 				android:layout_marginBottom="6dp"
-				android:layout_weight="1"
 				android:ellipsize="end"
 				android:maxLines="1"
 				android:textAppearance="@style/TextAppearance.MaterialComponents.Body2"
 				android:textColor="?android:textColorSecondary"
 				tools:text="@tools:sample/lorem[6]" />
 
+			<Space
+				android:layout_width="wrap_content"
+				android:layout_height="0dp"
+				android:layout_weight="1" />
 
 			<View
 				android:id="@+id/divider"