feat: implement password protection and app customization features for Android

android/app/src/main/java/com/thefeed/android/AndroidBridge.kt

@@ -0,0 +1,126 @@
+package com.thefeed.android
+
+import android.app.Activity
+import android.content.Context
+import android.content.Intent
+import android.graphics.Bitmap
+import android.graphics.BitmapFactory
+import android.util.Base64
+import android.webkit.JavascriptInterface
+import androidx.core.content.pm.ShortcutInfoCompat
+import androidx.core.content.pm.ShortcutManagerCompat
+import androidx.core.graphics.drawable.IconCompat
+import java.io.File
+import java.io.FileOutputStream
+import java.security.MessageDigest
+
+class AndroidBridge(private val activity: Activity) {
+
+    private val prefs by lazy {
+        activity.getSharedPreferences(ThefeedService.PREFS_NAME, Context.MODE_PRIVATE)
+    }
+
+    // ===== Identity =====
+
+    @JavascriptInterface
+    fun isAndroid(): Boolean = true
+
+    /**
+     * Create a pinned shortcut on the home screen with a custom name and icon.
+     * @param name The label shown under the shortcut
+     * @param iconBase64 Base64-encoded image data (may include data:image/...;base64, prefix)
+     */
+    @JavascriptInterface
+    fun createAppShortcut(name: String, iconBase64: String): Boolean {
+        return try {
+            val raw = if (iconBase64.contains(",")) {
+                iconBase64.substringAfter(",")
+            } else {
+                iconBase64
+            }
+            val bytes = Base64.decode(raw, Base64.DEFAULT)
+            val bitmap = BitmapFactory.decodeByteArray(bytes, 0, bytes.size) ?: return false
+
+            // Save icon to internal storage for persistence
+            val iconFile = File(activity.filesDir, "custom_shortcut_icon.png")
+            FileOutputStream(iconFile).use { out ->
+                bitmap.compress(Bitmap.CompressFormat.PNG, 100, out)
+            }
+            prefs.edit()
+                .putString(PREF_CUSTOM_APP_NAME, name)
+                .putString(PREF_CUSTOM_ICON_PATH, iconFile.absolutePath)
+                .apply()
+
+            val icon = IconCompat.createWithBitmap(bitmap)
+            val shortcut = ShortcutInfoCompat.Builder(activity, "custom_launcher")
+                .setShortLabel(name)
+                .setLongLabel(name)
+                .setIcon(icon)
+                .setIntent(
+                    Intent(activity, MainActivity::class.java).apply {
+                        action = Intent.ACTION_MAIN
+                    }
+                )
+                .build()
+            ShortcutManagerCompat.requestPinShortcut(activity, shortcut, null)
+            true
+        } catch (_: Exception) {
+            false
+        }
+    }
+
+    @JavascriptInterface
+    fun getCustomAppName(): String {
+        return prefs.getString(PREF_CUSTOM_APP_NAME, "") ?: ""
+    }
+
+    @JavascriptInterface
+    fun resetAppShortcut() {
+        prefs.edit()
+            .remove(PREF_CUSTOM_APP_NAME)
+            .remove(PREF_CUSTOM_ICON_PATH)
+            .apply()
+        val iconFile = File(activity.filesDir, "custom_shortcut_icon.png")
+        if (iconFile.exists()) iconFile.delete()
+    }
+
+    // ===== Password =====
+
+    @JavascriptInterface
+    fun hasPassword(): Boolean {
+        return prefs.getString(PREF_PASSWORD_HASH, null) != null
+    }
+
+    @JavascriptInterface
+    fun setPassword(password: String): Boolean {
+        if (password.isEmpty()) return false
+        prefs.edit().putString(PREF_PASSWORD_HASH, sha256(password)).apply()
+        return true
+    }
+
+    @JavascriptInterface
+    fun removePassword(currentPassword: String): Boolean {
+        val stored = prefs.getString(PREF_PASSWORD_HASH, null) ?: return false
+        if (sha256(currentPassword) != stored) return false
+        prefs.edit().remove(PREF_PASSWORD_HASH).apply()
+        return true
+    }
+
+    @JavascriptInterface
+    fun checkPassword(password: String): Boolean {
+        val stored = prefs.getString(PREF_PASSWORD_HASH, null) ?: return true // no password set
+        return sha256(password) == stored
+    }
+
+    private fun sha256(input: String): String {
+        val digest = MessageDigest.getInstance("SHA-256")
+        val hash = digest.digest(input.toByteArray(Charsets.UTF_8))
+        return hash.joinToString("") { "%02x".format(it) }
+    }
+
+    companion object {
+        const val PREF_CUSTOM_APP_NAME = "custom_app_name"
+        const val PREF_CUSTOM_ICON_PATH = "custom_icon_path"
+        const val PREF_PASSWORD_HASH = "password_hash"
+    }
+}

android/app/src/main/java/com/thefeed/android/MainActivity.kt

@@ -1,6 +1,7 @@
 package com.thefeed.android
 
 import android.Manifest
+import android.annotation.SuppressLint
 import android.content.Context
 import android.content.Intent
 import android.content.pm.PackageManager
@@ -11,12 +12,17 @@ import android.os.Looper
 import android.os.PowerManager
 import android.net.Uri
 import android.provider.Settings
+import android.text.InputType
 import android.webkit.WebResourceError
 import android.webkit.WebResourceRequest
 import android.webkit.WebSettings
 import android.webkit.WebView
 import android.webkit.WebViewClient
 import android.view.View
+import android.view.inputmethod.EditorInfo
+import android.widget.Button
+import android.widget.EditText
+import android.widget.LinearLayout
 import android.widget.TextView
 import android.webkit.JsResult
 import android.webkit.WebChromeClient
@@ -38,6 +44,7 @@ class MainActivity : ComponentActivity() {
     private lateinit var txtStatus: TextView
     private val handler = Handler(Looper.getMainLooper())
     private var fileChooserCallback: ValueCallback<Array<Uri>>? = null
+    private var lockScreenVisible = false
 
     private val fileChooserLauncher = registerForActivityResult(
         ActivityResultContracts.GetContent()
@@ -78,7 +85,55 @@ class MainActivity : ComponentActivity() {
         configureWebView()
         registerBackHandler()
         startThefeedService()
-        waitForServerThenLoad()
+
+        if (isPasswordSet()) {
+            showLockScreen()
+        } else {
+            waitForServerThenLoad()
+        }
+    }
+
+    private fun isPasswordSet(): Boolean {
+        val prefs = getSharedPreferences(ThefeedService.PREFS_NAME, Context.MODE_PRIVATE)
+        return prefs.getString(AndroidBridge.PREF_PASSWORD_HASH, null) != null
+    }
+
+    @SuppressLint("SetTextI18n")
+    private fun showLockScreen() {
+        lockScreenVisible = true
+        val lockOverlay = findViewById<LinearLayout>(R.id.lockOverlay)
+        val lockInput = findViewById<EditText>(R.id.lockPasswordInput)
+        val lockBtn = findViewById<Button>(R.id.lockUnlockBtn)
+        val lockError = findViewById<TextView>(R.id.lockError)
+
+        lockOverlay.visibility = View.VISIBLE
+        webView.visibility = View.GONE
+        txtStatus.visibility = View.GONE
+
+        val bridge = AndroidBridge(this)
+
+        fun tryUnlock() {
+            val pw = lockInput.text.toString()
+            if (bridge.checkPassword(pw)) {
+                lockOverlay.visibility = View.GONE
+                webView.visibility = View.VISIBLE
+                lockScreenVisible = false
+                lockInput.text.clear()
+                lockError.visibility = View.GONE
+                waitForServerThenLoad()
+            } else {
+                lockError.text = "Wrong password"
+                lockError.visibility = View.VISIBLE
+            }
+        }
+
+        lockBtn.setOnClickListener { tryUnlock() }
+        lockInput.setOnEditorActionListener { _, actionId, _ ->
+            if (actionId == EditorInfo.IME_ACTION_DONE) {
+                tryUnlock()
+                true
+            } else false
+        }
     }
 
     private fun registerBackHandler() {
@@ -86,11 +141,13 @@ class MainActivity : ComponentActivity() {
             override fun handleOnBackPressed() {
                 // Check if the chat view is open (mobile nav). If yes, go back
                 // to the channel list. If already on the channel list, minimize.
+                // Uses openSidebar() directly instead of webView.goBack() to avoid
+                // history-stack mismatches that can leave the UI stuck mid-transition.
                 webView.evaluateJavascript(
                     "(document.getElementById('app').classList.contains('chat-open')).toString()"
                 ) { result ->
                     if (result.trim('"') == "true") {
-                        webView.goBack()
+                        webView.evaluateJavascript("openSidebar(); history.back();", null)
                     } else {
                         moveTaskToBack(true)
                     }
@@ -159,6 +216,7 @@ class MainActivity : ComponentActivity() {
         txtStatus.visibility = if (msg.isEmpty()) View.GONE else View.VISIBLE
     }
 
+    @SuppressLint("SetJavaScriptEnabled")
     private fun configureWebView() {
         webView.webViewClient = object : WebViewClient() {
             override fun shouldOverrideUrlLoading(
@@ -228,6 +286,8 @@ class MainActivity : ComponentActivity() {
             allowContentAccess = false
             mixedContentMode = WebSettings.MIXED_CONTENT_NEVER_ALLOW
         }
+
+        webView.addJavascriptInterface(AndroidBridge(this), "Android")
     }
 
     /**

android/app/src/main/res/layout/activity_main.xml

@@ -1,23 +1,89 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:orientation="vertical"
     android:background="@color/bg">
 
-    <TextView
-        android:id="@+id/txtStatus"
+    <LinearLayout
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:padding="10dp"
-        android:textColor="@color/text"
-        android:visibility="gone"
-        android:text="@string/webview_loading" />
+        android:layout_height="match_parent"
+        android:orientation="vertical">
 
-    <WebView
-        android:id="@+id/webView"
+        <TextView
+            android:id="@+id/txtStatus"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:padding="10dp"
+            android:textColor="@color/text"
+            android:visibility="gone"
+            android:text="@string/webview_loading" />
+
+        <WebView
+            android:id="@+id/webView"
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="1" />
+    </LinearLayout>
+
+    <!-- Password lock screen overlay -->
+    <LinearLayout
+        android:id="@+id/lockOverlay"
         android:layout_width="match_parent"
-        android:layout_height="0dp"
-        android:layout_weight="1" />
+        android:layout_height="match_parent"
+        android:orientation="vertical"
+        android:gravity="center"
+        android:padding="48dp"
+        android:background="@color/bg"
+        android:visibility="gone">
 
-</LinearLayout>
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/app_name"
+            android:textColor="@color/text"
+            android:textSize="28sp"
+            android:textStyle="bold"
+            android:layout_marginBottom="8dp" />
+
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/enter_password"
+            android:textColor="@color/text"
+            android:textSize="14sp"
+            android:layout_marginBottom="24dp" />
+
+        <EditText
+            android:id="@+id/lockPasswordInput"
+            android:layout_width="match_parent"
+            android:layout_height="48dp"
+            android:hint="@string/password_hint"
+            android:inputType="textPassword"
+            android:imeOptions="actionDone"
+            android:background="@color/bgPanel"
+            android:textColor="@color/text"
+            android:textColorHint="#66EDF2FF"
+            android:paddingStart="16dp"
+            android:paddingEnd="16dp"
+            android:layout_marginBottom="12dp" />
+
+        <TextView
+            android:id="@+id/lockError"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:textColor="#E74C3C"
+            android:textSize="13sp"
+            android:visibility="gone"
+            android:layout_marginBottom="12dp" />
+
+        <Button
+            android:id="@+id/lockUnlockBtn"
+            android:layout_width="match_parent"
+            android:layout_height="48dp"
+            android:text="@string/unlock"
+            android:background="@color/accent"
+            android:textColor="@color/bg"
+            android:textAllCaps="false"
+            android:textSize="16sp" />
+    </LinearLayout>
+</FrameLayout>

android/app/src/main/res/values/strings.xml

@@ -4,4 +4,7 @@
     <string name="start_service">Start</string>
     <string name="stop_service">Stop</string>
     <string name="reload_webview">Reload</string>
+    <string name="enter_password">Enter password to unlock</string>
+    <string name="password_hint">Password</string>
+    <string name="unlock">Unlock</string>
 </resources>

internal/web/static/index.html

@@ -1586,6 +1586,52 @@
           <button class="btn btn-flat" onclick="clearBgImage()" style="font-size:11px;padding:4px 10px;color:var(--error)" data-i18n="clear_bg">Clear</button>
         </div>
       </div>
+      <!-- Android-only: App Customization -->
+      <div id="androidAppSection" style="display:none;margin-top:14px;padding-top:12px;border-top:1px solid var(--border)">
+        <label style="font-size:13px;font-weight:600;color:var(--text)" data-i18n="app_customization">App Customization</label>
+        <div style="margin-top:8px">
+          <label style="font-size:12px;color:var(--text-dim)" data-i18n="app_name_label">App Name</label>
+          <input type="text" id="customAppName" placeholder="thefeed"
+            style="width:100%;margin-top:4px;padding:8px 12px;background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:6px;font-size:13px;box-sizing:border-box">
+        </div>
+        <div style="margin-top:8px">
+          <label style="font-size:12px;color:var(--text-dim)" data-i18n="app_icon_label">App Icon</label>
+          <div style="display:flex;gap:6px;align-items:center;margin-top:4px">
+            <img id="customIconPreview" src="" style="width:40px;height:40px;border-radius:8px;border:1px solid var(--border);display:none;object-fit:cover">
+            <input type="file" id="customIconInput" accept="image/*" style="flex:1;font-size:12px;color:var(--text)">
+          </div>
+        </div>
+        <div style="display:flex;gap:6px;margin-top:10px">
+          <button class="btn btn-primary" onclick="applyAppCustomization()" style="font-size:12px;padding:6px 14px" data-i18n="app_apply">Apply</button>
+          <button class="btn btn-flat" onclick="resetAppCustomization()" style="font-size:12px;padding:6px 14px;color:var(--error)" data-i18n="app_reset">Reset</button>
+        </div>
+      </div>
+      <!-- Android-only: App Password -->
+      <div id="androidPasswordSection" style="display:none;margin-top:14px;padding-top:12px;border-top:1px solid var(--border)">
+        <label style="font-size:13px;font-weight:600;color:var(--text)" data-i18n="app_password">App Password</label>
+        <div id="passwordSetSection" style="margin-top:8px">
+          <input type="password" id="appPasswordInput" placeholder=""
+            data-i18n-ph="password_new_ph"
+            style="width:100%;padding:8px 12px;background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:6px;font-size:13px;box-sizing:border-box;margin-bottom:6px">
+          <input type="password" id="appPasswordConfirm" placeholder=""
+            data-i18n-ph="password_confirm_ph"
+            style="width:100%;padding:8px 12px;background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:6px;font-size:13px;box-sizing:border-box">
+          <div id="passwordError" style="color:var(--error);font-size:12px;margin-top:4px;display:none"></div>
+          <div style="display:flex;gap:6px;margin-top:8px">
+            <button class="btn btn-primary" onclick="setAppPassword()" style="font-size:12px;padding:6px 14px" data-i18n="password_set">Set Password</button>
+          </div>
+        </div>
+        <div id="passwordRemoveSection" style="margin-top:8px;display:none">
+          <div style="font-size:12px;color:var(--text-dim);margin-bottom:6px" data-i18n="password_active">Password is active</div>
+          <input type="password" id="appPasswordCurrent" placeholder=""
+            data-i18n-ph="password_current_ph"
+            style="width:100%;padding:8px 12px;background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:6px;font-size:13px;box-sizing:border-box">
+          <div id="passwordRemoveError" style="color:var(--error);font-size:12px;margin-top:4px;display:none"></div>
+          <div style="display:flex;gap:6px;margin-top:8px">
+            <button class="btn btn-flat" onclick="removeAppPassword()" style="font-size:12px;padding:6px 14px;color:var(--error)" data-i18n="password_remove">Remove Password</button>
+          </div>
+        </div>
+      </div>
       <div class="modal-actions">
         <button class="btn btn-flat" onclick="closeSettings()" data-i18n="cancel">Cancel</button>
         <button class="btn btn-primary" onclick="saveSettings()" data-i18n="save">Save</button>
@@ -1900,7 +1946,7 @@
         copied: 'کپی شد!', copy: 'کپی', active: 'فعال',
         private: 'خصوصی', x_posts: 'پست‌های X', x_label: 'X', no_config: 'ابتدا پروفایل را ذخیره کنید',
         refreshing: 'در حال بروزرسانی...', fetching_channel: 'در حال دریافت کانال...',
-        msg_copied: 'پیام کپی شد!', rescan_started: 'بررسی مجدد شروع شد',
+        msg_copied: 'پیام کپی شد!', rescan_started: 'بررسی مجدد شروع شد', no_new_messages: 'پیام جدیدی نیست',
         add_manual: '✎ ساخت دستی', rescan: 'بررسی مجدد',
         new_messages: 'پیام جدید', missed_messages: '{n} پیام از دست رفته یا حذف شده',
         clear_cache: 'پاک کردن کش', cache_cleared: 'کش پاک شد!',
@@ -2032,7 +2078,7 @@
         copied: 'URI copied!', copy: 'Copy', active: 'Active',
         private: 'Private', x_posts: 'X Posts', x_label: 'X', no_config: 'Save a profile first',
         refreshing: 'Refreshing...', fetching_channel: 'Fetching channel...',
-        msg_copied: 'Message copied!', rescan_started: 'Rescan started',
+        msg_copied: 'Message copied!', rescan_started: 'Rescan started', no_new_messages: 'No new messages',
         add_manual: '✎ Create Manually', rescan: 'Rescan',
         new_messages: 'New messages', missed_messages: '{n} messages missed or deleted',
         clear_cache: 'Clear Cache', cache_cleared: 'Cache cleared!',
@@ -2127,6 +2173,26 @@
         dns_timeout: 'DNS Query Timeout (s)',
         auto_scan: 'Automatic hourly resolver check',
         scanner_clear_targets: '\uD83D\uDDD1 Clear',
+        app_customization: 'App Customization',
+        app_name_label: 'App Name',
+        app_icon_label: 'App Icon',
+        app_apply: 'Apply',
+        app_reset: 'Reset',
+        app_shortcut_created: 'Shortcut created!',
+        app_shortcut_failed: 'Failed to create shortcut',
+        app_reset_done: 'Reset done!',
+        app_password: 'App Password',
+        password_new_ph: 'New password',
+        password_confirm_ph: 'Confirm password',
+        password_current_ph: 'Current password',
+        password_set: 'Set Password',
+        password_remove: 'Remove Password',
+        password_active: 'Password is active',
+        password_set_ok: 'Password set!',
+        password_removed: 'Password removed!',
+        password_mismatch: 'Passwords do not match',
+        password_wrong: 'Wrong password',
+        password_empty: 'Password cannot be empty',
       }
     };
     var lang = localStorage.getItem('thefeed_lang') || 'fa';
@@ -2332,6 +2398,7 @@
     function openSettings() {
       renderLatestVersion();
       applyThemeButtons();
+      initAndroidSettings();
       document.getElementById('settingsModal').classList.add('active');
     }
     function closeSettings() { document.getElementById('settingsModal').classList.remove('active') }
@@ -2341,6 +2408,109 @@
       try { await fetch('/api/settings', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ fontSize: fs, debug: dbg }) }) } catch (e) { }
       closeSettings();
     }
+
+    // ===== ANDROID SETTINGS =====
+    function initAndroidSettings() {
+      if (typeof Android === 'undefined') return;
+      // Show Android-only sections
+      document.getElementById('androidAppSection').style.display = '';
+      document.getElementById('androidPasswordSection').style.display = '';
+      // Populate current custom name
+      try {
+        var name = Android.getCustomAppName();
+        if (name) document.getElementById('customAppName').value = name;
+      } catch (e) { }
+      // Show correct password section
+      try {
+        var hasPw = Android.hasPassword();
+        document.getElementById('passwordSetSection').style.display = hasPw ? 'none' : '';
+        document.getElementById('passwordRemoveSection').style.display = hasPw ? '' : 'none';
+      } catch (e) { }
+    }
+
+    var _customIconData = null;
+    (function () {
+      // Listen for icon file selection
+      document.addEventListener('DOMContentLoaded', function () {
+        var inp = document.getElementById('customIconInput');
+        if (!inp) return;
+        inp.addEventListener('change', function () {
+          var file = this.files && this.files[0];
+          if (!file) return;
+          var reader = new FileReader();
+          reader.onload = function (e) {
+            _customIconData = e.target.result;
+            var preview = document.getElementById('customIconPreview');
+            preview.src = _customIconData;
+            preview.style.display = '';
+          };
+          reader.readAsDataURL(file);
+        });
+      });
+    })();
+
+    function applyAppCustomization() {
+      if (typeof Android === 'undefined') return;
+      var name = document.getElementById('customAppName').value.trim() || 'thefeed';
+      if (!_customIconData) { showToast(t('app_icon_label')); return }
+      try {
+        var ok = Android.createAppShortcut(name, _customIconData);
+        showToast(ok ? t('app_shortcut_created') : t('app_shortcut_failed'));
+      } catch (e) { showToast(t('app_shortcut_failed')) }
+    }
+
+    function resetAppCustomization() {
+      if (typeof Android === 'undefined') return;
+      try {
+        Android.resetAppShortcut();
+        document.getElementById('customAppName').value = '';
+        document.getElementById('customIconPreview').style.display = 'none';
+        document.getElementById('customIconInput').value = '';
+        _customIconData = null;
+        showToast(t('app_reset_done'));
+      } catch (e) { }
+    }
+
+    function setAppPassword() {
+      if (typeof Android === 'undefined') return;
+      var pw = document.getElementById('appPasswordInput').value;
+      var confirm = document.getElementById('appPasswordConfirm').value;
+      var errEl = document.getElementById('passwordError');
+      errEl.style.display = 'none';
+      if (!pw) { errEl.textContent = t('password_empty'); errEl.style.display = ''; return }
+      if (pw !== confirm) { errEl.textContent = t('password_mismatch'); errEl.style.display = ''; return }
+      try {
+        var ok = Android.setPassword(pw);
+        if (ok) {
+          showToast(t('password_set_ok'));
+          document.getElementById('appPasswordInput').value = '';
+          document.getElementById('appPasswordConfirm').value = '';
+          document.getElementById('passwordSetSection').style.display = 'none';
+          document.getElementById('passwordRemoveSection').style.display = '';
+        }
+      } catch (e) { }
+    }
+
+    function removeAppPassword() {
+      if (typeof Android === 'undefined') return;
+      var pw = document.getElementById('appPasswordCurrent').value;
+      var errEl = document.getElementById('passwordRemoveError');
+      errEl.style.display = 'none';
+      if (!pw) { errEl.textContent = t('password_empty'); errEl.style.display = ''; return }
+      try {
+        var ok = Android.removePassword(pw);
+        if (ok) {
+          showToast(t('password_removed'));
+          document.getElementById('appPasswordCurrent').value = '';
+          document.getElementById('passwordSetSection').style.display = '';
+          document.getElementById('passwordRemoveSection').style.display = 'none';
+        } else {
+          errEl.textContent = t('password_wrong');
+          errEl.style.display = '';
+        }
+      } catch (e) { }
+    }
+
     async function checkLatestVersion() {
       var btn = document.getElementById('checkVersionBtn');
       var prevText = btn ? btn.textContent : '';
@@ -2425,7 +2595,9 @@
           closeProfiles();
           await selectChannel(1); return
         }
-        if (data && typeof data === 'object' && data.channel) {
+        if (data && typeof data === 'object' && data.type === 'no_changes') {
+          showToast(t('no_new_messages'));
+        } else if (data && typeof data === 'object' && data.channel) {
           if (data.channel === snapChannel) await loadMessages(data.channel)
         } else if (snapChannel > 0) { await loadMessages(snapChannel) }
         updateSendPanel();

internal/web/web.go

@@ -1121,7 +1121,7 @@ func (s *Server) refreshChannel(channelNum int) {
 	s.mu.RUnlock()
 	if prevID > 0 && ch.LastMsgID == prevID && ch.ContentHash == prevHash && len(prevMsgs) > 0 {
 		s.addLog(fmt.Sprintf("Channel %s: no changes (last ID: %d)", ch.Name, prevID))
-		s.broadcast(fmt.Sprintf("event: update\ndata: {\"type\":\"messages\",\"channel\":%d}\n\n", channelNum))
+		s.broadcast(fmt.Sprintf("event: update\ndata: {\"type\":\"no_changes\",\"channel\":%d}\n\n", channelNum))
 		return
 	}