Swap bottom nav and ActionToolbar when appropriate

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

@@ -32,6 +32,7 @@ import eu.kanade.tachiyomi.ui.base.controller.RootController
 import eu.kanade.tachiyomi.ui.base.controller.TabbedController
 import eu.kanade.tachiyomi.ui.base.controller.withFadeTransaction
 import eu.kanade.tachiyomi.ui.main.MainActivity
+import eu.kanade.tachiyomi.ui.main.offsetFabAppbarHeight
 import eu.kanade.tachiyomi.ui.manga.MangaController
 import eu.kanade.tachiyomi.util.system.getResourceColor
 import eu.kanade.tachiyomi.util.system.toast
@@ -177,6 +178,8 @@ class LibraryController(
         if (preferences.downloadedOnly().get()) {
             binding.downloadedOnly.visible()
         }
+
+        binding.actionToolbar.offsetFabAppbarHeight(activity!!)
     }
 
     override fun onChangeStarted(handler: ControllerChangeHandler, type: ControllerChangeType) {
@@ -316,6 +319,7 @@ class LibraryController(
                 actionMode!!,
                 R.menu.library_selection
             ) { onActionItemClicked(actionMode!!, it!!) }
+            (activity as? MainActivity)?.showBottomNav(visible = false, collapse = true)
         }
     }
 
@@ -323,6 +327,7 @@ class LibraryController(
      * Destroys the action mode.
      */
     private fun destroyActionModeIfNeeded() {
+        (activity as? MainActivity)?.showBottomNav(visible = true, collapse = true)
         actionMode?.finish()
     }
 

app/src/main/java/eu/kanade/tachiyomi/ui/main/MainActivity.kt

@@ -328,17 +328,11 @@ class MainActivity : BaseActivity<MainActivityBinding>() {
         binding.appbar.setExpanded(true)
 
         if ((from == null || from is RootController) && to !is RootController) {
-            bottomNavAnimator.collapse()
+            showBottomNav(visible = false, collapse = true)
         }
         if (to is RootController) {
-            if (from !is RootController) {
-                bottomNavAnimator.expand()
-            }
-
             // Always show bottom nav again when returning to a RootController
-            val layoutParams = binding.bottomNav.layoutParams as CoordinatorLayout.LayoutParams
-            val bottomViewNavigationBehavior = layoutParams.behavior as HideBottomViewOnScrollBehavior
-            bottomViewNavigationBehavior.slideUp(binding.bottomNav)
+            showBottomNav(visible = true, collapse = from !is RootController)
         }
 
         if (from is TabbedController) {
@@ -359,6 +353,24 @@ class MainActivity : BaseActivity<MainActivityBinding>() {
         }
     }
 
+    fun showBottomNav(visible: Boolean, collapse: Boolean = false) {
+        val layoutParams = binding.bottomNav.layoutParams as CoordinatorLayout.LayoutParams
+        val bottomViewNavigationBehavior = layoutParams.behavior as HideBottomViewOnScrollBehavior
+        if (visible) {
+            if (collapse) {
+                bottomNavAnimator.expand()
+            }
+
+            bottomViewNavigationBehavior.slideUp(binding.bottomNav)
+        } else {
+            if (collapse) {
+                bottomNavAnimator.collapse()
+            }
+
+            bottomViewNavigationBehavior.slideDown(binding.bottomNav)
+        }
+    }
+
     companion object {
         // Shortcut actions
         const val SHORTCUT_LIBRARY = "eu.kanade.tachiyomi.SHOW_LIBRARY"

app/src/main/java/eu/kanade/tachiyomi/ui/manga/chapter/ChaptersController.kt

@@ -121,8 +121,10 @@ class ChaptersController :
             }
             .launchIn(scope)
 
-        binding.fab.offsetFabAppbarHeight(activity!!)
         binding.fab.shrinkOnScroll(binding.recycler)
+
+        binding.actionToolbar.offsetFabAppbarHeight(activity!!)
+        binding.fab.offsetFabAppbarHeight(activity!!)
     }
 
     override fun onDestroyView(view: View) {

app/src/main/java/eu/kanade/tachiyomi/ui/recent/updates/UpdatesController.kt

@@ -22,6 +22,8 @@ import eu.kanade.tachiyomi.ui.base.controller.NoToolbarElevationController
 import eu.kanade.tachiyomi.ui.base.controller.NucleusController
 import eu.kanade.tachiyomi.ui.base.controller.RootController
 import eu.kanade.tachiyomi.ui.base.controller.withFadeTransaction
+import eu.kanade.tachiyomi.ui.main.MainActivity
+import eu.kanade.tachiyomi.ui.main.offsetFabAppbarHeight
 import eu.kanade.tachiyomi.ui.manga.MangaController
 import eu.kanade.tachiyomi.ui.reader.ReaderActivity
 import eu.kanade.tachiyomi.util.system.notificationManager
@@ -109,6 +111,8 @@ class UpdatesController :
                 binding.swipeRefresh.isRefreshing = false
             }
             .launchIn(scope)
+
+        binding.actionToolbar.offsetFabAppbarHeight(activity!!)
     }
 
     override fun onDestroyView(view: View) {
@@ -176,6 +180,7 @@ class UpdatesController :
                 actionMode!!,
                 R.menu.updates_chapter_selection
             ) { onActionItemClicked(actionMode!!, it!!) }
+            (activity as? MainActivity)?.showBottomNav(visible = false, collapse = true)
         }
 
         toggleSelection(position)
@@ -266,6 +271,7 @@ class UpdatesController :
     }
 
     private fun destroyActionModeIfNeeded() {
+        (activity as? MainActivity)?.showBottomNav(visible = true, collapse = true)
         actionMode?.finish()
     }