Migrate WebViewActivity to Compose

app/src/main/java/eu/kanade/presentation/components/AppBar.kt

@@ -0,0 +1,103 @@
+package eu.kanade.presentation.components
+
+import androidx.compose.foundation.layout.Column
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.MoreVert
+import androidx.compose.material3.DropdownMenu
+import androidx.compose.material3.DropdownMenuItem
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextOverflow
+import eu.kanade.tachiyomi.R
+
+@Composable
+fun AppBarTitle(
+    title: String?,
+    subtitle: String? = null,
+) {
+    val subtitleTextStyle = MaterialTheme.typography.bodyMedium
+
+    Column {
+        title?.let {
+            Text(
+                text = it,
+                maxLines = 1,
+                overflow = TextOverflow.Ellipsis,
+            )
+        }
+        subtitle?.let {
+            Text(
+                text = it,
+                style = subtitleTextStyle,
+                maxLines = 1,
+                overflow = TextOverflow.Ellipsis,
+            )
+        }
+    }
+}
+
+@Composable
+fun AppBarActions(
+    actions: List<AppBar.AppBarAction>,
+) {
+    var showMenu by remember { mutableStateOf(false) }
+
+    actions.filterIsInstance<AppBar.Action>().map {
+        IconButton(
+            onClick = it.onClick,
+            enabled = it.isEnabled,
+        ) {
+            Icon(
+                imageVector = it.icon,
+                contentDescription = it.title,
+            )
+        }
+    }
+
+    val overflowActions = actions.filterIsInstance<AppBar.OverflowAction>()
+    if (overflowActions.isNotEmpty()) {
+        IconButton(onClick = { showMenu = !showMenu }) {
+            Icon(Icons.Default.MoreVert, contentDescription = stringResource(R.string.label_more))
+        }
+
+        DropdownMenu(
+            expanded = showMenu,
+            onDismissRequest = { showMenu = false }
+        ) {
+            overflowActions.map {
+                DropdownMenuItem(
+                    onClick = {
+                        it.onClick()
+                        showMenu = false
+                    },
+                    text = { Text(it.title) },
+                )
+            }
+        }
+    }
+}
+
+object AppBar {
+    interface AppBarAction
+
+    data class Action(
+        val title: String,
+        val icon: ImageVector,
+        val onClick: () -> Unit,
+        val isEnabled: Boolean = true,
+    ) : AppBarAction
+
+    data class OverflowAction(
+        val title: String,
+        val onClick: () -> Unit,
+    ) : AppBarAction
+}