manager: make inset synchronize

manager/app/src/main/java/com/sukisu/ultra/ui/webui/WebUIActivity.kt

@@ -22,7 +22,9 @@ import androidx.lifecycle.ViewModelProvider
 import androidx.lifecycle.lifecycleScope
 import androidx.webkit.WebViewAssetLoader
 import com.topjohnwu.superuser.Shell
+import kotlinx.coroutines.CancellableContinuation
 import kotlinx.coroutines.launch
+import kotlinx.coroutines.suspendCancellableCoroutine
 import com.sukisu.ultra.ui.util.createRootShell
 import com.sukisu.ultra.ui.viewmodel.SuperUserViewModel
 import top.yukonga.miuix.kmp.basic.InfiniteProgressIndicator
@@ -34,6 +36,7 @@ class WebUIActivity : ComponentActivity() {
 
     private var rootShell: Shell? = null
     private lateinit var insets: Insets
+    private var insetsContinuation: CancellableContinuation<Unit>? = null
 
     override fun onCreate(savedInstanceState: Bundle?) {
 
@@ -62,7 +65,7 @@ class WebUIActivity : ComponentActivity() {
         }
     }
 
-    private fun setupWebView() {
+    private suspend fun setupWebView() {
         val moduleId = intent.getStringExtra("id")!!
         val name = intent.getStringExtra("name")!!
         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.TIRAMISU) {
@@ -81,6 +84,35 @@ class WebUIActivity : ComponentActivity() {
         val rootShell = createRootShell(true).also { this.rootShell = it }
         insets = Insets(0, 0, 0, 0)
 
+        val webView = WebView(this).apply {
+            setBackgroundColor(Color.TRANSPARENT)
+            val density = resources.displayMetrics.density
+
+            ViewCompat.setOnApplyWindowInsetsListener(this) { _, windowInsets ->
+                val inset = windowInsets.getInsets(WindowInsetsCompat.Type.systemBars() or WindowInsetsCompat.Type.displayCutout())
+                insets = Insets(
+                    top = (inset.top / density).toInt(),
+                    bottom = (inset.bottom / density).toInt(),
+                    left = (inset.left / density).toInt(),
+                    right = (inset.right / density).toInt()
+                )
+                insetsContinuation?.resumeWith(Result.success(Unit))
+                insetsContinuation = null
+                WindowInsetsCompat.CONSUMED
+            }
+        }
+
+        setContentView(webView)
+
+        if (insets == Insets(0, 0, 0, 0)) {
+            suspendCancellableCoroutine<Unit> { cont ->
+                insetsContinuation = cont
+                cont.invokeOnCancellation {
+                    insetsContinuation = null
+                }
+            }
+        }
+
         val webViewAssetLoader = WebViewAssetLoader.Builder()
             .setDomain("mui.kernelsu.org")
             .addPathHandler(
@@ -114,30 +146,15 @@ class WebUIActivity : ComponentActivity() {
             }
         }
 
-        val webView = WebView(this).apply {
+        webView.apply {
-            setBackgroundColor(Color.TRANSPARENT)
-            val density = resources.displayMetrics.density
-
-            ViewCompat.setOnApplyWindowInsetsListener(this) { _, windowInsets ->
-                val inset = windowInsets.getInsets(WindowInsetsCompat.Type.systemBars() or WindowInsetsCompat.Type.displayCutout())
-                insets = Insets(
-                    top = (inset.top / density).toInt(),
-                    bottom = (inset.bottom / density).toInt(),
-                    left = (inset.left / density).toInt(),
-                    right = (inset.right / density).toInt()
-                )
-                WindowInsetsCompat.CONSUMED
-            }
             settings.javaScriptEnabled = true
             settings.domStorageEnabled = true
             settings.allowFileAccess = false
-            webviewInterface = WebViewInterface(this@WebUIActivity, this, moduleDir)
+            webviewInterface = WebViewInterface(this@WebUIActivity, webView, moduleDir)
             addJavascriptInterface(webviewInterface, "ksu")
             setWebViewClient(webViewClient)
             loadUrl("https://mui.kernelsu.org/index.html")
         }
-
-        setContentView(webView)
     }
 
     override fun onDestroy() {