Add ability to tweak auto hide sensitivity in Webtoon Reader (#5650)

* Tweak threshold

* Put setting under Webtoon instead

Because it only affects Webtoon related viewers

app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferenceKeys.kt

@@ -87,6 +87,8 @@ object PreferenceKeys {
 
     const val showNavigationOverlayOnStart = "reader_navigation_overlay_on_start"
 
+    const val readerHideThreshold = "reader_hide_threshold"
+
     const val webtoonSidePadding = "webtoon_side_padding"
 
     const val portraitColumns = "pref_library_columns_portrait_key"

app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferenceValues.kt

@@ -43,4 +43,11 @@ object PreferenceValues {
         VERTICAL(shouldInvertVertical = true),
         BOTH(shouldInvertHorizontal = true, shouldInvertVertical = true),
     }
+
+    enum class ReaderHideThreshold(val threshold: Int) {
+        HIGHEST(5),
+        HIGH(13),
+        LOW(31),
+        LOWEST(47)
+    }
 }

app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferencesHelper.kt

@@ -167,6 +167,8 @@ class PreferencesHelper(val context: Context) {
 
     fun showNavigationOverlayOnStart() = flowPrefs.getBoolean(Keys.showNavigationOverlayOnStart, false)
 
+    fun readerHideTreshold() = flowPrefs.getEnum(Keys.readerHideThreshold, Values.ReaderHideThreshold.LOW)
+
     fun portraitColumns() = flowPrefs.getInt(Keys.portraitColumns, 0)
 
     fun landscapeColumns() = flowPrefs.getInt(Keys.landscapeColumns, 0)