Convert Login to kotlin

app/src/main/java/awais/instagrabber/activities/Login.kt

@@ -1,141 +1,119 @@
-package awais.instagrabber.activities;
-
-import android.annotation.SuppressLint;
-import android.content.Intent;
-import android.graphics.Bitmap;
-import android.os.Build;
-import android.os.Bundle;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.webkit.CookieManager;
-import android.webkit.CookieSyncManager;
-import android.webkit.WebChromeClient;
-import android.webkit.WebSettings;
-import android.webkit.WebView;
-import android.webkit.WebViewClient;
-import android.widget.CompoundButton;
-import android.widget.Toast;
-
-import androidx.annotation.Nullable;
-
-import awais.instagrabber.R;
-import awais.instagrabber.databinding.ActivityLoginBinding;
-import awais.instagrabber.utils.Constants;
-import awais.instagrabber.utils.CookieUtils;
-import awais.instagrabber.utils.TextUtils;
-
-public final class Login extends BaseLanguageActivity implements View.OnClickListener {
-    private final WebViewClient webViewClient = new WebViewClient() {
-        @Override
-        public void onPageStarted(final WebView view, final String url, final Bitmap favicon) {
-            webViewUrl = url;
-        }
-
-        @Override
-        public void onPageFinished(final WebView view, final String url) {
-            webViewUrl = url;
-            final String mainCookie = CookieUtils.getCookie(url);
-            if (TextUtils.isEmpty(mainCookie) || !mainCookie.contains("; ds_user_id=")) {
-                ready = true;
-                return;
+package awais.instagrabber.activities
+
+import android.annotation.SuppressLint
+import android.content.Intent
+import android.graphics.Bitmap
+import android.os.Build
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.webkit.*
+import android.widget.Toast
+import awais.instagrabber.R
+import awais.instagrabber.databinding.ActivityLoginBinding
+import awais.instagrabber.utils.Constants
+import awais.instagrabber.utils.getCookie
+
+class Login : BaseLanguageActivity(), View.OnClickListener {
+    private var webViewUrl: String? = null
+    private var ready = false
+    private lateinit var loginBinding: ActivityLoginBinding
+
+    private val webChromeClient = WebChromeClient()
+    private val webViewClient: WebViewClient = object : WebViewClient() {
+        override fun onPageStarted(view: WebView, url: String, favicon: Bitmap) {
+            webViewUrl = url
+        }
+
+        override fun onPageFinished(view: WebView, url: String) {
+            webViewUrl = url
+            val mainCookie = getCookie(url)
+            if (mainCookie.isNullOrBlank() || !mainCookie.contains("; ds_user_id=")) {
+                ready = true
+                return
             }
             if (mainCookie.contains("; ds_user_id=") && ready) {
-                returnCookieResult(mainCookie);
+                returnCookieResult(mainCookie)
             }
         }
-    };
-
-    private void returnCookieResult(final String mainCookie) {
-        final Intent intent = new Intent();
-        intent.putExtra("cookie", mainCookie);
-        setResult(Constants.LOGIN_RESULT_CODE, intent);
-        finish();
     }
 
-    private final WebChromeClient webChromeClient = new WebChromeClient();
-    private String webViewUrl;
-    private boolean ready = false;
-    private ActivityLoginBinding loginBinding;
-
-    @Override
-    protected void onCreate(@Nullable final Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        loginBinding = ActivityLoginBinding.inflate(LayoutInflater.from(getApplicationContext()));
-        setContentView(loginBinding.getRoot());
-
-        initWebView();
+    private fun returnCookieResult(mainCookie: String?) {
+        val intent = Intent()
+        intent.putExtra("cookie", mainCookie)
+        setResult(Constants.LOGIN_RESULT_CODE, intent)
+        finish()
+    }
 
-        loginBinding.cookies.setOnClickListener(this);
-        loginBinding.refresh.setOnClickListener(this);
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        loginBinding = ActivityLoginBinding.inflate(LayoutInflater.from(applicationContext))
+        setContentView(loginBinding.root)
+        initWebView()
+        loginBinding.cookies.setOnClickListener(this)
+        loginBinding.refresh.setOnClickListener(this)
     }
 
-    @Override
-    public void onClick(final View v) {
-        if (v == loginBinding.refresh) {
-            loginBinding.webView.loadUrl("https://instagram.com/");
-            return;
+    override fun onClick(v: View) {
+        if (v === loginBinding.refresh) {
+            loginBinding.webView.loadUrl("https://instagram.com/")
+            return
         }
-        if (v == loginBinding.cookies) {
-            final String mainCookie = CookieUtils.getCookie(webViewUrl);
-            if (TextUtils.isEmpty(mainCookie) || !mainCookie.contains("; ds_user_id=")) {
-                Toast.makeText(this, R.string.login_error_loading_cookies, Toast.LENGTH_SHORT).show();
-                return;
+        if (v === loginBinding.cookies) {
+            val mainCookie = getCookie(webViewUrl)
+            if (mainCookie.isNullOrBlank() || !mainCookie.contains("; ds_user_id=")) {
+                Toast.makeText(this, R.string.login_error_loading_cookies, Toast.LENGTH_SHORT).show()
+                return
             }
-            returnCookieResult(mainCookie);
+            returnCookieResult(mainCookie)
         }
     }
 
     @SuppressLint("SetJavaScriptEnabled")
-    private void initWebView() {
-        if (loginBinding != null) {
-            loginBinding.webView.setWebChromeClient(webChromeClient);
-            loginBinding.webView.setWebViewClient(webViewClient);
-            final WebSettings webSettings = loginBinding.webView.getSettings();
-            if (webSettings != null) {
-                webSettings.setUserAgentString("Mozilla/5.0 (Linux; Android 10) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.105 Mobile Safari/537.36");
-                webSettings.setJavaScriptEnabled(true);
-                webSettings.setDomStorageEnabled(true);
-                webSettings.setSupportZoom(true);
-                webSettings.setBuiltInZoomControls(true);
-                webSettings.setDisplayZoomControls(false);
-                webSettings.setLoadWithOverviewMode(true);
-                webSettings.setUseWideViewPort(true);
-                webSettings.setAllowFileAccessFromFileURLs(true);
-                webSettings.setAllowUniversalAccessFromFileURLs(true);
-                webSettings.setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);
-            }
+    private fun initWebView() {
+        loginBinding.webView.webChromeClient = webChromeClient
+        loginBinding.webView.webViewClient = webViewClient
+        val webSettings = loginBinding.webView.settings
+        webSettings.userAgentString =
+            "Mozilla/5.0 (Linux; Android 10) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.105 Mobile Safari/537.36"
+        webSettings.javaScriptEnabled = true
+        webSettings.domStorageEnabled = true
+        webSettings.setSupportZoom(true)
+        webSettings.builtInZoomControls = true
+        webSettings.displayZoomControls = false
+        webSettings.loadWithOverviewMode = true
+        webSettings.useWideViewPort = true
+        webSettings.allowFileAccessFromFileURLs = true
+        webSettings.allowUniversalAccessFromFileURLs = true
+        webSettings.mixedContentMode = WebSettings.MIXED_CONTENT_ALWAYS_ALLOW
 
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1) {
-                CookieManager.getInstance().removeAllCookies(null);
-                CookieManager.getInstance().flush();
+            CookieManager.getInstance().removeAllCookies(null)
+            CookieManager.getInstance().flush()
         } else {
-                CookieSyncManager cookieSyncMngr = CookieSyncManager.createInstance(getApplicationContext());
-                cookieSyncMngr.startSync();
-                CookieManager cookieManager = CookieManager.getInstance();
-                cookieManager.removeAllCookie();
-                cookieManager.removeSessionCookie();
-                cookieSyncMngr.stopSync();
-                cookieSyncMngr.sync();
-            }
-            loginBinding.webView.loadUrl("https://instagram.com/");
+            val cookieSyncMngr = CookieSyncManager.createInstance(applicationContext)
+            cookieSyncMngr.startSync()
+            val cookieManager = CookieManager.getInstance()
+            cookieManager.removeAllCookie()
+            cookieManager.removeSessionCookie()
+            cookieSyncMngr.stopSync()
+            cookieSyncMngr.sync()
         }
+        loginBinding.webView.loadUrl("https://instagram.com/")
     }
 
-    @Override
-    protected void onPause() {
-        if (loginBinding != null) loginBinding.webView.onPause();
-        super.onPause();
+    override fun onPause() {
+        loginBinding.webView.onPause()
+        super.onPause()
     }
 
-    @Override
-    protected void onResume() {
-        super.onResume();
-        if (loginBinding != null) loginBinding.webView.onResume();
+    override fun onResume() {
+        super.onResume()
+        loginBinding.webView.onResume()
     }
 
-    @Override
-    protected void onDestroy() {
-        if (loginBinding != null) loginBinding.webView.destroy();
-        super.onDestroy();
+    override fun onDestroy() {
+        loginBinding.webView.destroy()
+        super.onDestroy()
     }
 }