Library toolbar now collaspses again

Moved the show all categories button into the recylcer

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryController.kt

@@ -61,11 +61,10 @@ import eu.kanade.tachiyomi.util.system.dpToPxEnd
 import eu.kanade.tachiyomi.util.system.getResourceColor
 import eu.kanade.tachiyomi.util.system.launchUI
 import eu.kanade.tachiyomi.util.view.applyWindowInsetsForRootController
-import eu.kanade.tachiyomi.util.view.doOnApplyWindowInsets
 import eu.kanade.tachiyomi.util.view.getItemView
 import eu.kanade.tachiyomi.util.view.gone
 import eu.kanade.tachiyomi.util.view.hide
-import eu.kanade.tachiyomi.util.view.marginTop
+import eu.kanade.tachiyomi.util.view.scrollViewWith
 import eu.kanade.tachiyomi.util.view.setBackground
 import eu.kanade.tachiyomi.util.view.setOnQueryTextChangeListener
 import eu.kanade.tachiyomi.util.view.setStartTranslationX
@@ -245,12 +244,6 @@ class LibraryController(
         fast_scroller.setStartTranslationX(!alwaysShowScroller)
         fast_scroller.setBackground(!alwaysShowScroller)
 
-        show_all.isChecked = preferences.showAllCategories().get()
-        show_all.setOnCheckedChangeListener { _, isChecked ->
-            preferences.showAllCategories().set(isChecked)
-            presenter.getLibrary()
-        }
-
         adapter = LibraryCategoryAdapter(this)
         adapter.expandItemsAtStartUp()
         adapter.isRecursiveCollapse = true
@@ -312,7 +305,15 @@ class LibraryController(
                 appbar?.y = 0f
                 recycler.suppressLayout(true)
                 (recycler.layoutManager as LinearLayoutManager).scrollToPositionWithOffset(
-                    itemPosition, 0
+                    itemPosition, if (adapter.isSingleCategory) {
+                        0
+                    } else {
+                        if (itemPosition == 0) {
+                            0
+                        } else {
+                            (-40).dpToPx
+                        }
+                    }
                 )
                 recycler.suppressLayout(false)
             }
@@ -330,25 +331,18 @@ class LibraryController(
             scrollToHeader(it)
             showCategories(false)
         }
-        swipe_refresh.setDistanceToTriggerSync(150.dpToPx)
+        category_recycler.onShowAllClicked = { isChecked ->
-        val marginTop = category_layout.marginTop
+            preferences.showAllCategories().set(isChecked)
-        recycler.doOnApplyWindowInsets { recyclerView, insets, _ ->
+            presenter.getLibrary()
-            recyclerView.updateLayoutParams<ViewGroup.MarginLayoutParams> {
-                topMargin = marginTop + insets.systemWindowInsetTop
         }
+        scrollViewWith(recycler, swipeRefreshLayout = swipe_refresh, afterInsets = { insets ->
             category_layout?.updateLayoutParams<ViewGroup.MarginLayoutParams> {
-                topMargin = marginTop + insets.systemWindowInsetTop
+                topMargin = recycler?.paddingTop ?: 0
-            }
-            recycler_cover?.updateLayoutParams<ViewGroup.MarginLayoutParams> {
-                topMargin = marginTop + insets.systemWindowInsetTop
             }
             fast_scroller?.updateLayoutParams<ViewGroup.MarginLayoutParams> {
                 topMargin = insets.systemWindowInsetTop
             }
-            swipe_refresh?.setProgressViewOffset(
+        })
-                true, (marginTop + insets.systemWindowInsetTop) + (-60).dpToPx, marginTop + insets.systemWindowInsetTop + 10.dpToPx
-            )
-        }
 
         swipe_refresh.setOnRefreshListener {
             swipe_refresh.isRefreshing = false
@@ -605,11 +599,16 @@ class LibraryController(
     private fun showCategories(show: Boolean) {
         recycler_cover.isClickable = show
         recycler_cover.isFocusable = show
-        val translateY = if (show) category_layout.height.toFloat() + 12f.dpToPx else 0f
+        val translateY = if (show) {
+            category_layout.height.toFloat() + recycler.paddingTop
+        } else {
+            0f
+        }
         recycler.animate().translationY(translateY).start()
         recycler_cover.animate().translationY(translateY).start()
         recycler_cover.animate().alpha(if (show) 0.75f else 0f).start()
         if (show) {
+            activity?.appbar?.y = 0f
             elevateFunc(false)
             activity?.dropdown?.setImageResource(R.drawable.ic_arrow_drop_up_24dp)
         } else {

app/src/main/java/eu/kanade/tachiyomi/ui/library/category/CategoryItem.kt

@@ -1,25 +1,41 @@
 package eu.kanade.tachiyomi.ui.library.category
 
 import android.view.View
+import android.widget.CheckBox
 import android.widget.TextView
 import com.mikepenz.fastadapter.FastAdapter
 import com.mikepenz.fastadapter.items.AbstractItem
+import com.tfcporciuncula.flow.Preference
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.database.models.Category
+import eu.kanade.tachiyomi.data.preference.PreferencesHelper
+import uy.kohesive.injekt.Injekt
+import uy.kohesive.injekt.api.get
 
-class CategoryItem(val category: Category) :
+class CategoryItem(val category: Category) : AbstractItem<FastAdapter.ViewHolder<CategoryItem>>() {
-AbstractItem<CategoryItem.ViewHolder>() {
 
     /** defines the type defining this item. must be unique. preferably an id */
-    override val type: Int = R.id.category_text
+    override val type: Int = if (category.id == -1) {
+        R.id.auto_checkbox
+    } else {
+        R.id.category_text
+    }
 
     /** defines the layout which will be used for this item in the list */
-    override val layoutRes: Int = R.layout.catergory_text_view
+    override val layoutRes: Int = if (category.id == -1) {
+        R.layout.auto_ext_checkbox
+    } else {
+        R.layout.catergory_text_view
+    }
 
     override var identifier = category.id?.toLong() ?: -1L
 
-    override fun getViewHolder(v: View): ViewHolder {
+    override fun getViewHolder(v: View): FastAdapter.ViewHolder<CategoryItem> {
-        return ViewHolder(v)
+        return if (category.id == -1) {
+            ShowAllViewHolder(Injekt.get<PreferencesHelper>().showAllCategories(), v)
+        } else {
+            ViewHolder(v)
+        }
     }
 
     class ViewHolder(view: View) : FastAdapter.ViewHolder<CategoryItem>(view) {
@@ -33,4 +49,19 @@ AbstractItem<CategoryItem.ViewHolder>() {
             categoryTitle.text = null
         }
     }
+
+    class ShowAllViewHolder(val pref: Preference<Boolean>, view: View) :
+        FastAdapter.ViewHolder<CategoryItem>(view) {
+
+        val checkbox: CheckBox? = view.findViewById(R.id.auto_checkbox)
+
+        init {
+            checkbox?.setText(R.string.show_all_categories)
+        }
+
+        override fun bindView(item: CategoryItem, payloads: List<Any>) {
+            checkbox?.isChecked = pref.get()
+        }
+        override fun unbindView(item: CategoryItem) {}
+    }
 }

app/src/main/java/eu/kanade/tachiyomi/ui/library/category/CategoryRecyclerView.kt

@@ -2,16 +2,19 @@ package eu.kanade.tachiyomi.ui.library.category
 
 import android.content.Context
 import android.util.AttributeSet
+import android.view.View
 import android.view.ViewGroup
+import android.widget.CheckBox
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import com.mikepenz.fastadapter.FastAdapter
 import com.mikepenz.fastadapter.adapters.ItemAdapter
+import com.mikepenz.fastadapter.listeners.CustomEventHook
 import com.mikepenz.fastadapter.listeners.OnBindViewHolderListenerImpl
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.database.models.Category
+import eu.kanade.tachiyomi.data.database.models.CategoryImpl
 import eu.kanade.tachiyomi.util.view.marginBottom
-import eu.kanade.tachiyomi.util.view.marginTop
 
 class CategoryRecyclerView @JvmOverloads constructor(
     context: Context,
@@ -21,8 +24,12 @@ class CategoryRecyclerView @JvmOverloads constructor(
     val manager = LinearLayoutManager(context)
     private val fastAdapter: FastAdapter<CategoryItem>
     var onCategoryClicked: (Int) -> Unit = { _ -> }
+    var onShowAllClicked: (Boolean) -> Unit = { }
     private val itemAdapter = ItemAdapter<CategoryItem>()
     var selectedCategory: Int = 0
+    val headerItem = CategoryItem(CategoryImpl().apply {
+        id = -1
+    })
 
     init {
         fastAdapter = FastAdapter.with(itemAdapter)
@@ -31,8 +38,9 @@ class CategoryRecyclerView @JvmOverloads constructor(
     }
 
     fun setCategories(items: List<Category>) {
-        itemAdapter.set(items.map(::CategoryItem))
+        itemAdapter.set(listOf(headerItem) + items.map(::CategoryItem))
-        fastAdapter.onBindViewHolderListener = (object : OnBindViewHolderListenerImpl<CategoryItem>() {
+        fastAdapter.onBindViewHolderListener =
+            (object : OnBindViewHolderListenerImpl<CategoryItem>() {
                 override fun onBindViewHolder(
                     viewHolder: ViewHolder,
                     position: Int,
@@ -40,26 +48,42 @@ class CategoryRecyclerView @JvmOverloads constructor(
                 ) {
                     super.onBindViewHolder(viewHolder, position, payloads)
                     (viewHolder as? CategoryItem.ViewHolder)?.categoryTitle?.isSelected =
-                    selectedCategory == position
+                        selectedCategory + 1 == position
                 }
             })
         fastAdapter.onClickListener = { _, _, item, _ ->
+            if (item.category.id != -1)
                 onCategoryClicked(item.category.order)
             true
         }
+        fastAdapter.addEventHook(object : CustomEventHook<CategoryItem>() {
+            override fun onBind(viewHolder: ViewHolder): View? {
+                return if (viewHolder is CategoryItem.ShowAllViewHolder) {
+                    viewHolder.checkbox
+                } else {
+                    null
+                }
+            }
+
+            override fun attachEvent(view: View, viewHolder: ViewHolder) {
+                (view as? CheckBox)?.setOnCheckedChangeListener { _, isChecked ->
+                    onShowAllClicked(isChecked)
+                }
+            }
+        })
     }
 
     fun setCategories(selected: Int) {
         selectedCategory = selected
         for (i in 0..manager.itemCount) {
             (findViewHolderForAdapterPosition(i) as? CategoryItem.ViewHolder)?.categoryTitle?.isSelected =
-                selectedCategory == i
+                selectedCategory + 1 == i
         }
     }
 
     override fun onMeasure(widthSpec: Int, heightSpec: Int) {
         val recyclerView = (parent.parent as ViewGroup).findViewById<RecyclerView>(R.id.recycler)
-        val top = recyclerView.marginTop
+        val top = recyclerView.paddingTop
         val bottom = recyclerView.marginBottom
         val parent = recyclerView.measuredHeight - top - bottom
         val heightS = if (parent > 0)

app/src/main/java/eu/kanade/tachiyomi/util/view/ControllerExtensions.kt

@@ -96,7 +96,7 @@ fun Controller.scrollViewWith(
         elevate = el
         if (liftOnScroll != null) {
             liftOnScroll.invoke(el)
-        } else {
+        } else if (recycler.translationY == 0f) {
             elevationAnim?.cancel()
             elevationAnim = ValueAnimator.ofFloat(
                 activity!!.appbar.elevation, if (el) 15f else 0f
@@ -158,7 +158,9 @@ fun Controller.scrollViewWith(
         override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
             super.onScrolled(recyclerView, dx, dy)
             if (router?.backstack?.lastOrNull()
-                    ?.controller() == this@scrollViewWith && statusBarHeight > -1 && activity != null && activity!!.appbar.height > 0
+                    ?.controller() == this@scrollViewWith && statusBarHeight > -1 &&
+                activity != null && activity!!.appbar.height > 0 &&
+                recycler.translationY == 0f
             ) {
                 if (!recycler.canScrollVertically(-1)) {
                     val shortAnimationDuration = resources?.getInteger(
@@ -185,7 +187,9 @@ fun Controller.scrollViewWith(
             super.onScrollStateChanged(recyclerView, newState)
             if (newState == RecyclerView.SCROLL_STATE_IDLE) {
                 if (router?.backstack?.lastOrNull()
-                        ?.controller() == this@scrollViewWith && statusBarHeight > -1 && activity != null && activity!!.appbar.height > 0
+                        ?.controller() == this@scrollViewWith && statusBarHeight > -1 &&
+                    activity != null && activity!!.appbar.height > 0 &&
+                    recycler.translationY == 0f
                 ) {
                     val halfWay = abs((-activity!!.appbar.height.toFloat()) / 2)
                     val shortAnimationDuration = resources?.getInteger(

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

@@ -8,9 +8,9 @@
 
     <ProgressBar
         android:id="@+id/progress"
-        android:layout_gravity="center"
         android:layout_width="75dp"
-        android:layout_height="75dp"/>
+        android:layout_height="75dp"
+        android:layout_gravity="center" />
 
     <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
         android:id="@+id/swipe_refresh"
@@ -22,34 +22,39 @@
             android:layout_width="match_parent"
             android:layout_height="match_parent">
 
-            <LinearLayout
+            <androidx.constraintlayout.widget.ConstraintLayout
                 android:id="@+id/category_layout"
                 android:layout_width="match_parent"
-                android:layout_marginTop="?actionBarSize"
-                android:orientation="vertical"
-                android:gravity="top"
-                android:layout_height="wrap_content" >
-                <com.google.android.material.checkbox.MaterialCheckBox
-                    android:id="@+id/show_all"
-                    android:layout_marginStart="6dp"
-                    android:layout_width="match_parent"
                 android:layout_height="wrap_content"
-                    android:text="@string/show_all_categories"/>
+                android:layout_marginTop="?actionBarSize"
+                android:orientation="vertical">
 
                 <eu.kanade.tachiyomi.ui.library.category.CategoryRecyclerView
                     android:id="@+id/category_recycler"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    app:layout_constraintBottom_toBottomOf="parent"
+                    app:layout_constraintEnd_toEndOf="parent"
+                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintTop_toTopOf="parent"/>
+
+                <View
                     android:layout_width="match_parent"
-                    android:layout_height="wrap_content" />
+                    android:layout_height="8dp"
-            </LinearLayout>
+                    android:alpha="0.1"
+                    android:background="@drawable/shape_gradient_top_shadow"
+                    app:layout_constraintBottom_toBottomOf="parent"
+                    app:layout_constraintEnd_toEndOf="parent"
+                    app:layout_constraintStart_toStartOf="parent" />
+            </androidx.constraintlayout.widget.ConstraintLayout>
 
             <include layout="@layout/library_grid_recycler" />
 
             <View
                 android:id="@+id/recycler_cover"
-                android:layout_marginTop="?actionBarSize"
-                android:alpha="0"
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"
+                android:alpha="0"
                 android:background="?android:colorBackground" />
         </FrameLayout>
 
@@ -61,16 +66,16 @@
 
         <com.reddit.indicatorfastscroll.FastScrollerView
             android:id="@+id/fast_scroller"
-            android:textColor="?android:attr/textColorPrimaryInverse"
             android:layout_width="25dp"
             android:layout_height="wrap_content"
-            android:elevation="10dp"
             android:layout_gravity="end"
             android:background="@drawable/fast_scroll_background"
-            android:paddingTop="8dp"
+            android:elevation="10dp"
-            android:paddingBottom="8dp"
             android:paddingStart="3dp"
+            android:paddingTop="8dp"
             android:paddingEnd="0dp"
+            android:paddingBottom="8dp"
+            android:textColor="?android:attr/textColorPrimaryInverse"
             app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintTop_toTopOf="parent"
@@ -80,14 +85,14 @@
             android:id="@+id/text_view_m"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:alpha="0"
-            tools:alpha="1"
             android:layout_marginEnd="50dp"
+            android:alpha="0"
             android:background="@drawable/round_textview_background"
             android:padding="10dp"
             android:textColor="@android:color/white"
             app:layout_constraintEnd_toStartOf="@id/fast_scroller"
             app:layout_constraintTop_toTopOf="@id/fast_scroller"
+            tools:alpha="1"
             tools:text="Category" />
     </androidx.constraintlayout.widget.ConstraintLayout>