From 1aede09d35d104131d121811f902a3a207c329a1 Mon Sep 17 00:00:00 2001
From: Jay <jays2kings@gmail.com>
Date: Fri, 8 May 2020 15:08:17 -0400
Subject: [PATCH] Hide & Expand  Categories buttons now show/hide dynamically

---
 .../eu/kanade/tachiyomi/ui/library/LibraryController.kt  | 4 ++++
 .../tachiyomi/ui/library/filter/FilterBottomSheet.kt     | 9 +++++++++
 2 files changed, 13 insertions(+)

diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryController.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryController.kt
index e83cffc2a2..a6136856ed 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryController.kt
@@ -639,6 +639,10 @@ class LibraryController(
             scrollToHeader(activeCategory)
         }
         category_hopper_frame.visibleIf(!singleCategory)
+        filter_bottom_sheet.updateButtons(
+            showHideCategories = presenter.allCategories.size > 1,
+            showExpand = !singleCategory && presenter.showAllCategories
+        )
         adapter.isLongPressDragEnabled = canDrag()
         category_recycler.setCategories(presenter.categories)
         filter_bottom_sheet.setExpandText(preferences.collapsedCategories().getOrDefault().isNotEmpty())
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/library/filter/FilterBottomSheet.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/library/filter/FilterBottomSheet.kt
index d61e765df5..ab611c1dae 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/library/filter/FilterBottomSheet.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/library/filter/FilterBottomSheet.kt
@@ -27,6 +27,7 @@ import eu.kanade.tachiyomi.util.view.hide
 import eu.kanade.tachiyomi.util.view.inflate
 import eu.kanade.tachiyomi.util.view.isExpanded
 import eu.kanade.tachiyomi.util.view.isHidden
+import eu.kanade.tachiyomi.util.view.isVisible
 import eu.kanade.tachiyomi.util.view.updatePaddingRelative
 import eu.kanade.tachiyomi.util.view.visibleIf
 import kotlinx.android.synthetic.main.filter_bottom_sheet.view.*
@@ -429,6 +430,14 @@ class FilterBottomSheet @JvmOverloads constructor(context: Context, attrs: Attri
         }
     }
 
+    fun updateButtons(showHideCategories: Boolean, showExpand: Boolean) {
+        hide_categories.visibleIf(showHideCategories)
+        expand_categories.visibleIf(showExpand)
+        first_layout.visibleIf(
+            hide_categories.isVisible() || expand_categories.isVisible() || !second_layout.isVisible()
+        )
+    }
+
     private fun clearFilters() {
         preferences.filterDownloaded().set(0)
         preferences.filterUnread().set(0)