Tighten TV home hero and bring-in-view offset

app-tv/src/main/java/hu/bbara/purefin/ui/screen/home/TvHomeScreen.kt

@@ -43,7 +43,7 @@ fun TvHomeScreen(
         ) {
             TvFocusedItemHero(
                 item = focusedMediaUiModel.value,
-                height = 250.dp
+                height = 220.dp
             )
             TvHomeContent(
                 libraries = libraries,

app-tv/src/main/java/hu/bbara/purefin/ui/screen/home/components/TvHomeBringIntoView.kt

@@ -6,7 +6,7 @@ import androidx.compose.foundation.gestures.BringIntoViewSpec
 import androidx.compose.ui.unit.dp
 import kotlin.math.abs
 
-internal val TvHomeFocusedItemTopOffset = 56.dp
+internal val TvHomeFocusedItemTopOffset = 42.dp
 internal val TvHomeBringIntoViewTrailingSpace = 120.dp
 
 private const val TvHomeRowPivotParentFraction = 0.3f

app-tv/src/main/java/hu/bbara/purefin/ui/screen/home/components/TvHomeContent.kt

@@ -3,6 +3,7 @@
 package hu.bbara.purefin.ui.screen.home.components
 
 import androidx.compose.foundation.background
+import androidx.compose.foundation.gestures.LocalBringIntoViewSpec
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
@@ -11,9 +12,11 @@ import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.itemsIndexed
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.CompositionLocalProvider
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.focus.FocusRequester
+import androidx.compose.ui.platform.LocalDensity
 import androidx.compose.ui.platform.testTag
 import androidx.compose.ui.unit.dp
 import hu.bbara.purefin.core.ui.model.MediaUiModel
@@ -37,12 +40,15 @@ fun TvHomeContent(
     modifier: Modifier = Modifier,
 ) {
     val scheme = MaterialTheme.colorScheme
+    val topOffsetPx = with(LocalDensity.current) { TvHomeFocusedItemTopOffset.toPx() }
     val hasContinueWatching = continueWatching.isNotEmpty()
     val hasNextUp = nextUp.isNotEmpty()
     val hasVisibleContent = hasContinueWatching || hasNextUp
     val initialFocusRequester = remember { FocusRequester() }
 
-
+    CompositionLocalProvider(
+        LocalBringIntoViewSpec provides tvHomeColumnBringIntoViewSpec(topOffsetPx)
+    ) {
         LazyColumn(
             modifier = modifier
                 .fillMaxSize()
@@ -83,7 +89,7 @@ fun TvHomeContent(
             itemsIndexed(
                 items = libraries,
                 key = { _, library -> library.id }
-        ) { index, library ->
+            ) { _, library ->
                 TvLibraryPosterSection(
                     title = library.name,
                     items = libraryContent[library.id].orEmpty(),
@@ -102,3 +108,4 @@ fun TvHomeContent(
             }
         }
     }
+}

app-tv/src/test/java/hu/bbara/purefin/ui/screen/home/components/TvHomeBringIntoViewSpecTest.kt

@@ -0,0 +1,49 @@
+package hu.bbara.purefin.ui.screen.home.components
+
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class TvHomeBringIntoViewSpecTest {
+
+    private val topOffsetPx = 56f
+    private val spec = tvHomeColumnBringIntoViewSpec(topOffsetPx)
+
+    @Test
+    fun returnsZero_whenFocusedItemAlreadyAtTopOffset() {
+        assertEquals(
+            0f,
+            spec.calculateScrollDistance(
+                offset = topOffsetPx,
+                size = 52f,
+                containerSize = 240f
+            ),
+            0.0001f
+        )
+    }
+
+    @Test
+    fun scrollsDownToTopOffset_whenFocusedItemIsBelowTarget() {
+        assertEquals(
+            64f,
+            spec.calculateScrollDistance(
+                offset = 120f,
+                size = 52f,
+                containerSize = 240f
+            ),
+            0.0001f
+        )
+    }
+
+    @Test
+    fun scrollsUpToTopOffset_whenFocusedItemIsAboveTarget() {
+        assertEquals(
+            -32f,
+            spec.calculateScrollDistance(
+                offset = 24f,
+                size = 52f,
+                containerSize = 240f
+            ),
+            0.0001f
+        )
+    }
+}