Keep tab badges visible when the tab label is too long

Fixes #4165
Fixes #3423
Closes #3424

(cherry picked from commit b19c8abeba)

presentation-core/src/main/java/tachiyomi/presentation/core/components/material/Tabs.kt

@@ -1,12 +1,12 @@
 package tachiyomi.presentation.core.components.material
 
 import androidx.compose.foundation.isSystemInDarkTheme
-import androidx.compose.foundation.layout.Row
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
-import androidx.compose.ui.Alignment
+import androidx.compose.ui.layout.Layout
 import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.offset
 import androidx.compose.ui.unit.sp
 import tachiyomi.presentation.core.components.Pill
 
@@ -14,20 +14,31 @@ import tachiyomi.presentation.core.components.Pill
 fun TabText(text: String, badgeCount: Int? = null) {
     val pillAlpha = if (isSystemInDarkTheme()) 0.12f else 0.08f
 
-    Row(
-        verticalAlignment = Alignment.CenterVertically,
-    ) {
-        Text(
-            text = text,
-            maxLines = 1,
-            overflow = TextOverflow.Ellipsis,
-        )
-        if (badgeCount != null) {
-            Pill(
-                text = "$badgeCount",
-                color = MaterialTheme.colorScheme.onBackground.copy(alpha = pillAlpha),
-                fontSize = 10.sp,
+    Layout(
+        content = {
+            Text(
+                text = text,
+                maxLines = 1,
+                overflow = TextOverflow.Ellipsis,
             )
+            if (badgeCount != null) {
+                Pill(
+                    text = "$badgeCount",
+                    color = MaterialTheme.colorScheme.onBackground.copy(alpha = pillAlpha),
+                    fontSize = 10.sp,
+                )
+            }
+        },
+    ) { measurables, constraints ->
+        val looseConstraints = constraints.copy(minWidth = 0, minHeight = 0)
+        val badge = measurables.getOrNull(1)?.measure(looseConstraints)
+        val badgeWidth = badge?.width ?: 0
+        // The label gets what the badge leaves, unlike with Modifier.weight even in scrollable rows' unbounded tabs
+        val label = measurables[0].measure(looseConstraints.offset(horizontal = -badgeWidth))
+        val height = maxOf(label.height, badge?.height ?: 0)
+        layout(label.width + badgeWidth, height) {
+            label.placeRelative(0, (height - label.height) / 2)
+            badge?.placeRelative(label.width, (height - badge.height) / 2)
         }
     }
 }