From 87c242e2bb66e7e916238da4325ab74b3912107b Mon Sep 17 00:00:00 2001
From: Koitharu <nvasya95@gmail.com>
Date: Thu, 20 Feb 2025 17:51:47 +0200
Subject: [PATCH] Dim navbar in details screen

---
 .../org/koitharu/kotatsu/details/ui/DetailsActivity.kt   | 5 +++--
 .../kotatsu/details/ui/DetailsBottomSheetCallback.kt     | 6 +++++-
 app/src/main/res/layout/activity_details.xml             | 9 +++++++++
 app/src/main/res/values-night/colors.xml                 | 1 +
 app/src/main/res/values/colors.xml                       | 1 +
 5 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/DetailsActivity.kt b/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/DetailsActivity.kt
index ecb2809af..8d5cbd1ff 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/DetailsActivity.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/DetailsActivity.kt
@@ -152,8 +152,9 @@ class DetailsActivity :
 		TitleScrollCoordinator(viewBinding.textViewTitle).attach(viewBinding.scrollView)
 		viewBinding.containerBottomSheet?.let { sheet ->
 			onBackPressedDispatcher.addCallback(BottomSheetCollapseCallback(sheet))
-			BottomSheetBehavior.from(sheet)
-				.addBottomSheetCallback(DetailsBottomSheetCallback(viewBinding.swipeRefreshLayout))
+			BottomSheetBehavior.from(sheet).addBottomSheetCallback(
+				DetailsBottomSheetCallback(viewBinding.swipeRefreshLayout, checkNotNull(viewBinding.navbarDim)),
+			)
 		}
 		TitleExpandListener(viewBinding.textViewTitle).attach()
 
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/DetailsBottomSheetCallback.kt b/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/DetailsBottomSheetCallback.kt
index d351a9b15..33576c064 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/DetailsBottomSheetCallback.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/DetailsBottomSheetCallback.kt
@@ -3,14 +3,18 @@ package org.koitharu.kotatsu.details.ui
 import android.view.View
 import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
 import com.google.android.material.bottomsheet.BottomSheetBehavior
+import org.koitharu.kotatsu.core.ui.widgets.WindowInsetHolder
 
 class DetailsBottomSheetCallback(
 	private val swipeRefreshLayout: SwipeRefreshLayout,
+	private val navbarDimView: WindowInsetHolder,
 ) : BottomSheetBehavior.BottomSheetCallback() {
 
 	override fun onStateChanged(bottomSheet: View, newState: Int) {
 		swipeRefreshLayout.isEnabled = newState == BottomSheetBehavior.STATE_COLLAPSED
 	}
 
-	override fun onSlide(bottomSheet: View, slideOffset: Float) = Unit
+	override fun onSlide(bottomSheet: View, slideOffset: Float) {
+		navbarDimView.alpha = 1f - slideOffset.coerceAtLeast(0f)
+	}
 }
diff --git a/app/src/main/res/layout/activity_details.xml b/app/src/main/res/layout/activity_details.xml
index 1c878b2d2..dc32df6c2 100644
--- a/app/src/main/res/layout/activity_details.xml
+++ b/app/src/main/res/layout/activity_details.xml
@@ -317,4 +317,13 @@
 		app:layout_behavior="com.google.android.material.bottomsheet.BottomSheetBehavior"
 		tools:layout="@layout/sheet_chapters_pages" />
 
+	<org.koitharu.kotatsu.core.ui.widgets.WindowInsetHolder
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:layout_gravity="bottom"
+		android:elevation="9dp"
+		tools:layout_height="10dp"
+		android:id="@+id/navbarDim"
+		android:background="@color/dim2" />
+
 </androidx.coordinatorlayout.widget.CoordinatorLayout>
diff --git a/app/src/main/res/values-night/colors.xml b/app/src/main/res/values-night/colors.xml
index 3bb43556e..8b306ab21 100644
--- a/app/src/main/res/values-night/colors.xml
+++ b/app/src/main/res/values-night/colors.xml
@@ -9,6 +9,7 @@
 	<color name="launcher_background">#222222</color>
 	<color name="common_green">#81C784</color>
 	<color name="common_red">#E57373</color>
+	<color name="dim2">#C8000000</color>
 
 	<!-- Color schemes colors -->
 	<color name="background_miku">#191C1C</color>
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index 1f6abee57..61c1d843c 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -15,6 +15,7 @@
 	<color name="blue_primary">#1976D2</color>
 	<color name="grey">#424242</color>
 	<color name="dim">#99000000</color>
+	<color name="dim2">#C8FFFFFF</color>
 	<color name="warning">#E65100</color>
 	<color name="launcher_background">#FFFFFF</color>
 	<color name="common_green">#388E3C</color>