chore(deps): update mtp digest to b067614

fix(android): gray screen bug

apps/tauri/package.json

@@ -14,7 +14,7 @@
     }
   },
   "scripts": {
-    "dev:mobile:raw": "tauri android dev --host ${TAURI_DEV_HOST:-127.0.0.1}",
+    "dev:mobile:raw": "adb reverse tcp:3000 tcp:3000 && tauri android dev --host ${TAURI_DEV_HOST:-127.0.0.1}",
     "start-adb:mobile:raw": "adb devices",
     "build:mobile:raw": "tauri android build",
     "build:mobile:ci": "node render-version.ts && trap 'node render-version.ts --unrender' EXIT && tauri android build --debug",

apps/tauri/src-tauri/Cargo.toml

@@ -15,14 +15,14 @@ name = "mobile_lib"
 crate-type = ["staticlib", "cdylib", "rlib"]
 
 [build-dependencies]
-tauri-build = { git = "https://github.com/tauri-apps/tauri", rev = "e2e585ad1196c9572f86ef39aae01ef4c3b1a762", features = [] }
+tauri-build = { git = "https://github.com/tauri-apps/tauri", rev = "4af26a3f7f8b692d62cca549bbacd93f5ce90b41", features = [] }
 
 [dependencies]
 tauri-plugin-opener = "2"
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 base64 = "0.22"
-reqwest = { version = "0.13", default-features = false, features = ["json", "rustls-tls"] }
+reqwest = { version = "0.13", default-features = false, features = ["json", "rustls"] }
 tokio = { version = "1", features = ["rt-multi-thread", "sync", "time"] }
 mtp = { git = "https://git.methanium.net/methanium/mtp.git", rev = "b067614a684eb1856bc5db7b3fd82148c036ce6b", features = ["client", "crypto"] }
 mtp-transport = { git = "https://git.methanium.net/methanium/mtp.git", rev = "b067614a684eb1856bc5db7b3fd82148c036ce6b" }

apps/tauri/src-tauri/capabilities/mobile.json

@@ -1,13 +1,9 @@
 {
   "identifier": "mobile-capability",
-  "platforms": [
-    "android",
-    "iOS"
-  ],
-  "windows": [
-    "main"
-  ],
+  "platforms": ["android", "iOS"],
+  "windows": ["main"],
   "permissions": [
+    "core:event:default",
     "deep-link:default",
     "barcode-scanner:default",
     "barcode-scanner:allow-scan",

apps/tauri/src-tauri/gen/android/app/build.gradle.kts

@@ -1,3 +1,4 @@
+import org.jetbrains.kotlin.gradle.dsl.JvmTarget
 import java.util.Properties
 import java.io.FileInputStream
 
@@ -61,14 +62,17 @@ android {
             )
         }
     }
-    kotlinOptions {
-        jvmTarget = "1.8"
-    }
     buildFeatures {
         buildConfig = true
     }
 }
 
+kotlin {
+    compilerOptions {
+        jvmTarget = JvmTarget.JVM_1_8
+    }
+}
+
 rust {
     rootDirRel = "../../../"
 }

apps/tauri/src-tauri/gen/android/app/src/main/java/net/tensamin/client/MainActivity.kt

@@ -3,10 +3,8 @@ package net.tensamin.client
 import android.Manifest
 import android.app.Activity
 import android.content.pm.PackageManager
-import android.graphics.Rect
 import android.media.projection.MediaProjectionManager
 import android.os.Bundle
-import android.view.ViewGroup
 import android.view.ViewTreeObserver
 import android.view.WindowManager
 import android.webkit.JavascriptInterface
@@ -56,7 +54,7 @@ class MainActivity : TauriActivity() {
   }
 
   override fun onWebViewCreate(webView: WebView) {
-    webView.setInitialScale(290)
+    NativeAccessibilityBridge.attach(webView)
     mediaWebView = webView
     MobileMediaEvents.attach(webView)
     webView.addJavascriptInterface(MobileMediaJavascriptInterface(), "tensaminMobileMedia")
@@ -65,11 +63,12 @@ class MainActivity : TauriActivity() {
   override fun onCreate(savedInstanceState: Bundle?) {
     WindowCompat.setDecorFitsSystemWindows(window, true)
     window.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_NOTHING)
+    super.onCreate(savedInstanceState)
+    NativeMtpBridge.nativeAttach(applicationContext)
     if (MtpSecureStore.isEnabled(this) && MtpSecureStore.hasConfig(this)) {
       NativeMtpBridge.startService(this)
     }
-    super.onCreate(savedInstanceState)
-    NativeMtpBridge.nativeAttach(applicationContext)
+    NativeAccessibilityBridge.nativeAttach(applicationContext)
     installKeyboardResizeWorkaround()
   }
 
@@ -90,7 +89,10 @@ class MainActivity : TauriActivity() {
     attachLayoutListener = null
     contentRoot = null
     contentChild = null
-    mediaWebView?.removeJavascriptInterface("tensaminMobileMedia")
+    mediaWebView?.let {
+      NativeAccessibilityBridge.detach(it)
+      it.removeJavascriptInterface("tensaminMobileMedia")
+    }
     mediaWebView = null
     MobileMediaEvents.detach()
     super.onDestroy()
@@ -203,16 +205,20 @@ class MainActivity : TauriActivity() {
     child: android.view.View,
     insets: WindowInsetsCompat? = ViewCompat.getRootWindowInsets(child),
   ) {
-    val visibleFrame = Rect()
-    child.getWindowVisibleDisplayFrame(visibleFrame)
-
     val rootHeight = child.rootView.height
     if (rootHeight <= 0) return
 
-    val imeHeight = insets?.getInsets(WindowInsetsCompat.Type.ime())?.bottom ?: 0
-    val keyboardHeight = maxOf(imeHeight, rootHeight - visibleFrame.bottom)
-    val keyboardVisible = keyboardHeight > rootHeight * 0.15
-    val usableHeight = if (keyboardVisible) rootHeight - keyboardHeight else ViewGroup.LayoutParams.MATCH_PARENT
+    val imeVisible = insets?.isVisible(WindowInsetsCompat.Type.ime()) == true
+    val imeHeight = if (imeVisible) {
+      insets.getInsets(WindowInsetsCompat.Type.ime()).bottom
+    } else {
+      0
+    }
+    val usableHeight = if (imeHeight in 1 until rootHeight) {
+      rootHeight - imeHeight
+    } else {
+      WindowManager.LayoutParams.MATCH_PARENT
+    }
 
     if (previousUsableHeight == usableHeight) return
 

apps/tauri/src-tauri/gen/android/app/src/main/java/net/tensamin/client/MediaProjectionService.kt

@@ -26,6 +26,7 @@ import android.os.HandlerThread
 import android.os.IBinder
 import android.util.Base64
 import android.util.DisplayMetrics
+import androidx.core.app.NotificationCompat
 import androidx.core.content.ContextCompat
 import java.io.ByteArrayOutputStream
 import java.util.concurrent.atomic.AtomicBoolean
@@ -107,16 +108,12 @@ class MediaProjectionService : Service() {
       stopIntent,
       PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,
     )
-    val notification = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-      android.app.Notification.Builder(this, NOTIFICATION_CHANNEL_ID)
-    } else {
-      android.app.Notification.Builder(this)
-    }
+    val notification = NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID)
       .setSmallIcon(android.R.drawable.ic_menu_share)
       .setContentTitle("Tensamin is sharing your screen")
       .setContentText("Tap Stop to end screen sharing")
       .setOngoing(true)
-      .setCategory(android.app.Notification.CATEGORY_SERVICE)
+      .setCategory(NotificationCompat.CATEGORY_SERVICE)
       .addAction(android.R.drawable.ic_media_pause, "Stop", stopPendingIntent)
       .build()
 

apps/tauri/src-tauri/gen/android/app/src/main/java/net/tensamin/client/MtpForegroundService.kt

@@ -13,6 +13,8 @@ import android.net.Network
 import android.net.NetworkCapabilities
 import android.os.Build
 import android.os.IBinder
+import android.os.Process
+import android.os.SystemClock
 import androidx.core.app.NotificationCompat
 
 class MtpForegroundService : Service() {
@@ -74,10 +76,19 @@ class MtpForegroundService : Service() {
   }
 
   override fun onTaskRemoved(rootIntent: Intent?) {
+    val preferences = getSharedPreferences(SERVICE_PREFERENCES, Context.MODE_PRIVATE)
+    val now = SystemClock.elapsedRealtime()
+    if (now - preferences.getLong(LAST_TASK_RESTART, 0) < TASK_RESTART_COOLDOWN_MS) {
+      super.onTaskRemoved(rootIntent)
+      return
+    }
+    preferences.edit().putLong(LAST_TASK_RESTART, now).commit()
     if (MtpSecureStore.isEnabled(this) && MtpSecureStore.hasConfig(this)) {
       startService(Intent(this, MtpForegroundService::class.java))
     }
     super.onTaskRemoved(rootIntent)
+    // Tauri cannot recreate its WebView after the UI task is removed while this process survives.
+    Process.killProcess(Process.myPid())
   }
 
   override fun onDestroy() {
@@ -94,6 +105,9 @@ class MtpForegroundService : Service() {
     private const val CHANNEL_ID = "tensamin-connection"
     private const val NOTIFICATION_ID = 2201
     private const val ACTION_STOP = "net.tensamin.client.STOP_MTP"
+    private const val SERVICE_PREFERENCES = "tensamin-service"
+    private const val LAST_TASK_RESTART = "last-task-restart"
+    private const val TASK_RESTART_COOLDOWN_MS = 15_000L
     @Volatile private var connectionStatus = "Connecting"
 
     fun updateNotification(context: Context, status: String) {

apps/tauri/src-tauri/gen/android/app/src/main/java/net/tensamin/client/NativeAccessibilityBridge.kt

@@ -0,0 +1,51 @@
+package net.tensamin.client
+
+import android.content.Context
+import android.webkit.WebView
+import androidx.annotation.Keep
+import java.lang.ref.WeakReference
+
+@Keep
+object NativeAccessibilityBridge {
+  const val DEFAULT_INITIAL_SCALE = 290
+  private const val MIN_INITIAL_SCALE = 210
+  private const val MAX_INITIAL_SCALE = 500
+  private const val PREFERENCES = "tensamin-accessibility"
+  private const val INITIAL_SCALE = "initial-scale"
+
+  private var webView = WeakReference<WebView>(null)
+
+  init {
+    System.loadLibrary("mobile_lib")
+  }
+
+  @JvmStatic external fun nativeAttach(context: Context)
+
+  fun attach(webView: WebView) {
+    this.webView = WeakReference(webView)
+    webView.setInitialScale(getInitialScale(webView.context))
+  }
+
+  fun detach(webView: WebView) {
+    if (this.webView.get() === webView) this.webView.clear()
+  }
+
+  fun getInitialScale(context: Context): Int {
+    val preferences = context.getSharedPreferences(PREFERENCES, Context.MODE_PRIVATE)
+    val storedScale = preferences.getInt(INITIAL_SCALE, DEFAULT_INITIAL_SCALE)
+    val scale = storedScale.coerceIn(MIN_INITIAL_SCALE, MAX_INITIAL_SCALE)
+    if (scale != storedScale) preferences.edit().putInt(INITIAL_SCALE, scale).apply()
+    return scale
+  }
+
+  fun setInitialScale(context: Context, initialScale: Int) {
+    val nextScale = initialScale.coerceIn(MIN_INITIAL_SCALE, MAX_INITIAL_SCALE)
+    context.getSharedPreferences(PREFERENCES, Context.MODE_PRIVATE)
+      .edit()
+      .putInt(INITIAL_SCALE, nextScale)
+      .apply()
+    webView.get()?.let { currentWebView ->
+      currentWebView.post { currentWebView.setInitialScale(nextScale) }
+    }
+  }
+}

apps/tauri/src-tauri/gen/android/build.gradle.kts

@@ -1,4 +1,4 @@
-import com.android.build.gradle.LibraryExtension
+import com.android.build.api.dsl.LibraryExtension
 
 buildscript {
     repositories {
@@ -6,8 +6,8 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath("com.android.tools.build:gradle:9.3.1")
-        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:2.4.10")
+        classpath("com.android.tools.build:gradle:8.11.0")
+        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:2.1.20")
     }
 }
 

apps/tauri/src-tauri/gen/android/buildSrc/build.gradle.kts

@@ -18,6 +18,5 @@ repositories {
 
 dependencies {
     compileOnly(gradleApi())
-    implementation("com.android.tools.build:gradle:9.3.1")
+    implementation("com.android.tools.build:gradle:8.11.0")
 }
-

apps/tauri/src-tauri/gen/android/buildSrc/src/main/java/net/tensamin/client/kotlin/BuildTask.kt

@@ -5,8 +5,12 @@ import org.gradle.api.GradleException
 import org.gradle.api.logging.LogLevel
 import org.gradle.api.tasks.Input
 import org.gradle.api.tasks.TaskAction
+import org.gradle.process.ExecOperations
+import javax.inject.Inject
 
-open class BuildTask : DefaultTask() {
+open class BuildTask @Inject constructor(
+    private val execOperations: ExecOperations,
+) : DefaultTask() {
     @Input
     var rootDirRel: String? = null
     @Input
@@ -50,7 +54,7 @@ open class BuildTask : DefaultTask() {
         val release = release ?: throw GradleException("release cannot be null")
         val args = listOf("tauri", "android", "android-studio-script");
 
-        project.exec {
+        execOperations.exec {
             workingDir(File(project.projectDir, rootDirRel))
             executable(executable)
             args(args)
@@ -65,4 +69,4 @@ open class BuildTask : DefaultTask() {
             args(listOf("--target", target))
         }.assertNormalExitValue()
     }
-}
+}

apps/tauri/src-tauri/src/accessibility_backend.rs

@@ -0,0 +1,135 @@
+#[cfg(not(target_os = "android"))]
+const DEFAULT_INITIAL_SCALE: i32 = 290;
+const MIN_INITIAL_SCALE: i32 = 210;
+const MAX_INITIAL_SCALE: i32 = 500;
+
+#[tauri::command]
+pub fn accessibility_get_initial_scale() -> Result<i32, String> {
+    android_get_initial_scale()
+}
+
+#[tauri::command]
+pub fn accessibility_set_initial_scale(initial_scale: i32) -> Result<(), String> {
+    if !(MIN_INITIAL_SCALE..=MAX_INITIAL_SCALE).contains(&initial_scale) {
+        return Err(format!(
+            "Initial scale must be between {MIN_INITIAL_SCALE} and {MAX_INITIAL_SCALE}"
+        ));
+    }
+
+    android_set_initial_scale(initial_scale)
+}
+
+#[cfg(not(target_os = "android"))]
+fn android_get_initial_scale() -> Result<i32, String> {
+    Ok(DEFAULT_INITIAL_SCALE)
+}
+
+#[cfg(not(target_os = "android"))]
+fn android_set_initial_scale(_: i32) -> Result<(), String> {
+    Ok(())
+}
+
+#[cfg(target_os = "android")]
+mod android {
+    use std::sync::OnceLock;
+
+    use jni::{
+        jni_sig, jni_str,
+        objects::{Global, JClass, JObject, JValue},
+        Env, EnvUnowned, JavaVM,
+    };
+
+    struct Host {
+        vm: JavaVM,
+        context: Global<JObject<'static>>,
+        bridge: Global<JObject<'static>>,
+    }
+
+    static HOST: OnceLock<Host> = OnceLock::new();
+
+    fn attach(env: &mut Env, context: JObject) -> Result<(), String> {
+        if HOST.get().is_some() {
+            return Ok(());
+        }
+
+        let class = env
+            .find_class(jni_str!("net/tensamin/client/NativeAccessibilityBridge"))
+            .map_err(|error| error.to_string())?;
+        let bridge = env
+            .get_static_field(
+                class,
+                jni_str!("INSTANCE"),
+                jni_sig!("Lnet/tensamin/client/NativeAccessibilityBridge;"),
+            )
+            .and_then(|value| value.l())
+            .map_err(|error| error.to_string())?;
+
+        HOST.set(Host {
+            vm: env.get_java_vm().map_err(|error| error.to_string())?,
+            context: env
+                .new_global_ref(context)
+                .map_err(|error| error.to_string())?,
+            bridge: env
+                .new_global_ref(bridge)
+                .map_err(|error| error.to_string())?,
+        })
+        .map_err(|_| "Android accessibility host is already attached".to_string())
+    }
+
+    fn with_env<T>(call: impl FnOnce(&mut Env, &Host) -> Result<T, String>) -> Result<T, String> {
+        let host = HOST
+            .get()
+            .ok_or("Android accessibility host is not attached")?;
+        host.vm
+            .attach_current_thread(|env| Ok::<_, jni::errors::Error>(call(env, host)))
+            .map_err(|error| error.to_string())?
+    }
+
+    pub fn get_initial_scale() -> Result<i32, String> {
+        with_env(|env, host| {
+            env.call_method(
+                host.bridge.as_obj(),
+                jni_str!("getInitialScale"),
+                jni_sig!("(Landroid/content/Context;)I"),
+                &[JValue::Object(host.context.as_obj())],
+            )
+            .and_then(|value| value.i())
+            .map_err(|error| error.to_string())
+        })
+    }
+
+    pub fn set_initial_scale(initial_scale: i32) -> Result<(), String> {
+        with_env(|env, host| {
+            env.call_method(
+                host.bridge.as_obj(),
+                jni_str!("setInitialScale"),
+                jni_sig!("(Landroid/content/Context;I)V"),
+                &[
+                    JValue::Object(host.context.as_obj()),
+                    JValue::Int(initial_scale),
+                ],
+            )
+            .map_err(|error| error.to_string())?;
+            Ok(())
+        })
+    }
+
+    #[no_mangle]
+    pub extern "system" fn Java_net_tensamin_client_NativeAccessibilityBridge_nativeAttach<
+        'caller,
+    >(
+        mut env: EnvUnowned<'caller>,
+        _class: JClass,
+        context: JObject<'caller>,
+    ) {
+        let _ = env.with_env(|env| {
+            let _ = attach(env, context);
+            Ok::<_, jni::errors::Error>(())
+        });
+    }
+}
+
+#[cfg(target_os = "android")]
+use android::{
+    get_initial_scale as android_get_initial_scale, set_initial_scale as android_set_initial_scale,
+};

apps/tauri/src-tauri/src/lib.rs

@@ -1,3 +1,4 @@
+mod accessibility_backend;
 mod mtp_backend;
 
 #[cfg_attr(mobile, tauri::mobile_entry_point)]
@@ -19,6 +20,8 @@ pub fn run() {
 
     let app = builder
         .invoke_handler(tauri::generate_handler![
+            accessibility_backend::accessibility_get_initial_scale,
+            accessibility_backend::accessibility_set_initial_scale,
             mtp_backend::mtp_request,
             mtp_backend::mtp_status,
             mtp_backend::mtp_store_credentials,

apps/tauri/src-tauri/src/mtp_backend.rs

@@ -372,9 +372,13 @@ async fn connect(config: &MtpConfig) -> Result<(MTPConnection, Value), String> {
         .with_max_missed_pings(3);
     #[cfg(target_os = "android")]
     let client_config = client_config.with_pinned_pem(android_root_certificates().clone());
-    let connection = MTPClient::auth_connect(client_config, &keyring, &host_key)
-        .await
-        .map_err(|error| format!("transport authentication failed: {error}"))?;
+    let connection = tokio::time::timeout(
+        Duration::from_secs(30),
+        MTPClient::auth_connect(client_config, &keyring, &host_key),
+    )
+    .await
+    .map_err(|_| "transport authentication timed out".to_string())?
+    .map_err(|error| format!("transport authentication failed: {error}"))?;
     manager().log(2, "Native MTP authentication completed", None);
 
     let connected = CommunicationValue::new(CommunicationType::ClientConnected)
@@ -385,10 +389,13 @@ async fn connect(config: &MtpConfig) -> Result<(MTPConnection, Value), String> {
         .add_typed_default(DataType::VersionNumber, DataValue::UnsignedNumber(0))
         .add_typed_default(DataType::CacheValid, DataValue::BoolFalse)
         .add_typed_default(DataType::CacheSchemaVersion, DataValue::UnsignedNumber(0));
-    let state = connection
-        .request(&connected, None)
-        .await
-        .map_err(|error| format!("initial state synchronization failed: {error}"))?;
+    let state = tokio::time::timeout(
+        Duration::from_secs(30),
+        connection.request(&connected, None),
+    )
+    .await
+    .map_err(|_| "initial state synchronization timed out".to_string())?
+    .map_err(|error| format!("initial state synchronization failed: {error}"))?;
     if !state.is_type(CommunicationType::ClientStateSync) {
         return Err(format!(
             "expected ClientStateSync, received {}",
@@ -406,9 +413,9 @@ async fn connect(config: &MtpConfig) -> Result<(MTPConnection, Value), String> {
     let ack = CommunicationValue::new(CommunicationType::ClientStateAck)
         .add_typed_default(DataType::SessionId, number_to_data(session_id))
         .add_typed_default(DataType::VersionNumber, number_to_data(version));
-    let response = connection
-        .request(&ack, None)
+    let response = tokio::time::timeout(Duration::from_secs(30), connection.request(&ack, None))
         .await
+        .map_err(|_| "state acknowledgement timed out".to_string())?
         .map_err(|error| format!("state acknowledgement failed: {error}"))?;
     if response
         .get_type_name()
@@ -433,7 +440,19 @@ async fn resolve_endpoint(config: &MtpConfig) -> Result<(String, String), String
         public_key: String,
     }
     let root = config.omega_url.trim_end_matches('/');
-    let response = reqwest::get(format!("{root}/api/get/omikron/{}", config.user_id))
+    let client = reqwest::Client::builder()
+        .connect_timeout(Duration::from_secs(10))
+        .timeout(Duration::from_secs(20));
+    #[cfg(target_os = "android")]
+    let client = client.tls_certs_only(
+        reqwest::Certificate::from_pem_bundle(android_root_certificates())
+            .map_err(|error| format!("invalid bundled root certificates: {error}"))?,
+    );
+    let response = client
+        .build()
+        .map_err(|error| error.to_string())?
+        .get(format!("{root}/api/get/omikron/{}", config.user_id))
+        .send()
         .await
         .map_err(|error| error.to_string())?;
     if !response.status().is_success() {

apps/web/index.html

@@ -2,7 +2,7 @@
 <html lang="en">
   <head>
     <meta charset="UTF-8" />
-    <link rel="icon" type="image/svg+xml" href="/favicon.ico" />
+    <link rel="icon" href="./favicon.ico" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Tensamin</title>
   </head>

apps/web/package.json

@@ -6,7 +6,7 @@
   "scripts": {
     "format": "pnpm exec prettier --write .",
     "lint": "eslint src",
-    "dev": "vite --port 3000 --host 0.0.0.0",
+    "dev": "vite",
     "test": "vitest run --passWithNoTests",
     "build": "pnpm run test && tsc -b && vite build",
     "preview": "cd dist && nix-shell -p python3 --run 'python3 -m http.server 3000' && cd .."

apps/web/src/components/screens/login/form.tsx

@@ -76,11 +76,6 @@ function parseTuFileContent(rawFileContent: string): {
     throw new Error("Invalid file");
   }
 
-  console.log({
-    domain,
-    userId,
-  });
-
   return { userId, privateKey, domain };
 }
 

apps/web/vite.config.ts

@@ -70,9 +70,9 @@ export default defineConfig({
     ],
   },
   server: {
-    port: 5173,
+    port: 3000,
     strictPort: true,
-    host: host || "0.0.0.0",
+    host: "0.0.0.0",
     hmr: host
       ? {
           protocol: "ws",

packages/mtp/src/context.tsx

@@ -777,40 +777,49 @@ function TauriProvider(props: {
     let disposed = false;
     let unlisten: UnlistenFn | undefined;
     void (async () => {
-      unlisten = await listen<
-        | { kind: "state"; snapshot: NativeSnapshot }
-        | { kind: "message"; generation: number; message: unknown }
-        | {
-            kind: "log";
-            level: number;
-            message: string;
-            details?: unknown;
+      try {
+        const nextUnlisten = await listen<
+          | { kind: "state"; snapshot: NativeSnapshot }
+          | { kind: "message"; generation: number; message: unknown }
+          | {
+              kind: "log";
+              level: number;
+              message: string;
+              details?: unknown;
+            }
+        >("mtp://event", ({ payload }) => {
+          if (disposed) return;
+          if (payload.kind === "state") {
+            applySnapshot(payload.snapshot);
+            return;
           }
-      >("mtp://event", ({ payload }) => {
-        if (disposed) return;
-        if (payload.kind === "state") {
-          applySnapshot(payload.snapshot);
-          return;
-        }
-        if (payload.kind === "message") {
-          if (payload.generation === generationRef.current) {
-            dispatchMessage(payload.message);
+          if (payload.kind === "message") {
+            if (payload.generation === generationRef.current) {
+              dispatchMessage(payload.message);
+            }
+            return;
           }
-          return;
-        }
-        log(
-          payload.level,
-          "android",
-          "orange",
-          payload.message,
-          payload.details,
-        );
-      });
-      const current = await invoke<NativeSnapshot>("mtp_status");
-      if (!disposed) applySnapshot(current);
-    })().catch((error) => {
-      log(0, "mtp", "red", "Failed to initialize native MTP bridge", error);
-    });
+          log(
+            payload.level,
+            "android",
+            "orange",
+            payload.message,
+            payload.details,
+          );
+        });
+        if (disposed) nextUnlisten();
+        else unlisten = nextUnlisten;
+      } catch (error) {
+        log(0, "mtp", "red", "Failed to subscribe to native MTP events", error);
+      }
+
+      try {
+        const current = await invoke<NativeSnapshot>("mtp_status");
+        if (!disposed) applySnapshot(current);
+      } catch (error) {
+        log(0, "mtp", "red", "Failed to load native MTP status", error);
+      }
+    })();
     return () => {
       disposed = true;
       unlisten?.();

packages/settings/package.json

@@ -14,6 +14,7 @@
   "dependencies": {
     "@methanium/ui": "*",
     "@tanstack/react-router": "^1.170.21",
+    "@tauri-apps/api": "^2.11.1",
     "@tensamin/cache": "workspace:*",
     "@tensamin/hotkeys": "workspace:*",
     "@tensamin/mtp": "workspace:*",

packages/settings/src/manifest.ts

@@ -1,3 +1,4 @@
+import Accessibility from "./pages/accessibility";
 import Cache from "./pages/cache";
 import Call from "./pages/call";
 import Chat from "./pages/chat";
@@ -26,6 +27,12 @@ export const settingsPages = [
   { category: "general", path: "call", label: "Call", component: Call },
   { category: "application", path: "cache", label: "Cache", component: Cache },
   { category: "application", path: "theme", label: "Theme", component: Theme },
+  {
+    category: "application",
+    path: "accessibility",
+    label: "Accessibility",
+    component: Accessibility,
+  },
   {
     category: "application",
     path: "hotkeys",

packages/settings/src/pages/accessibility.tsx

@@ -0,0 +1,80 @@
+import { Button, Label, Slider } from "@methanium/ui";
+import { invoke, isTauri } from "@tauri-apps/api/core";
+import { RotateCcw } from "lucide-react";
+import { useEffect, useState } from "react";
+
+const DEFAULT_INITIAL_SCALE = 290;
+const MIN_INITIAL_SCALE = 210;
+const isAndroid = isTauri() && /Android/.test(navigator.userAgent);
+
+export default function Page() {
+  const [initialScale, setInitialScale] = useState(DEFAULT_INITIAL_SCALE);
+  const [loading, setLoading] = useState(isAndroid);
+
+  useEffect(() => {
+    if (!isAndroid) return;
+
+    let active = true;
+    void invoke<number>("accessibility_get_initial_scale")
+      .then((scale) => {
+        if (active) setInitialScale(scale);
+      })
+      .catch((error: unknown) => {
+        console.error("Failed to load the Android initial scale", error);
+      })
+      .finally(() => {
+        if (active) setLoading(false);
+      });
+
+    return () => {
+      active = false;
+    };
+  }, []);
+
+  if (!isAndroid) return null;
+
+  function updateInitialScale(nextScale: number) {
+    setInitialScale(nextScale);
+    void invoke("accessibility_set_initial_scale", {
+      initialScale: nextScale,
+    }).catch((error: unknown) => {
+      console.error("Failed to update the Android initial scale", error);
+    });
+  }
+
+  return (
+    <div className="flex max-w-md flex-col gap-2">
+      <div className="flex items-center justify-between gap-2">
+        <Label htmlFor="initial-scale">Interface scale</Label>
+        <span className="text-muted-foreground text-sm tabular-nums">
+          {initialScale}%
+        </span>
+      </div>
+      <div className="flex items-center gap-3">
+        <Slider
+          id="initial-scale"
+          aria-label="Interface scale"
+          min={MIN_INITIAL_SCALE}
+          max={500}
+          step={1}
+          value={[initialScale]}
+          disabled={loading}
+          onValueChange={(value) => {
+            const nextScale = Array.isArray(value) ? value[0] : value;
+            if (nextScale !== undefined) updateInitialScale(nextScale);
+          }}
+        />
+        <Button
+          className="size-8 shrink-0 p-0"
+          variant="outline"
+          aria-label="Reset interface scale"
+          title="Reset interface scale"
+          disabled={loading || initialScale === DEFAULT_INITIAL_SCALE}
+          onClick={() => updateInitialScale(DEFAULT_INITIAL_SCALE)}
+        >
+          <RotateCcw className="size-4" />
+        </Button>
+      </div>
+    </div>
+  );
+}

pnpm-lock.yaml

@@ -509,6 +509,9 @@ importers:
       '@tanstack/react-router':
         specifier: ^1.170.21
         version: 1.170.23(react-dom@19.2.8(react@19.2.8))(react@19.2.8)
+      '@tauri-apps/api':
+        specifier: ^2.11.1
+        version: 2.11.1
       '@tensamin/cache':
         specifier: workspace:*
         version: link:../cache