v0.5.5

CHANGELOG.md

+## 0.5.5
+
+- added `getUrl` method for the `InAppWebViewController` class
+- added `getTitle` method for the `InAppWebViewController` class
+- added `getProgress` method for the `InAppWebViewController` class
+- added `getFavicon` method for the `InAppWebViewController` class
+- added `onScrollChanged` event for the `InAppWebViewController` and `InAppBrowser` class
+- added `onBrowserCreated` event for the `InAppBrowser` class
+- added `openData` method for the `InAppBrowser` class
+- added `initialData` property for the `InAppWebView` widget
+
 ## 0.5.4
 
 - added `WebHistory` and `WebHistoryItem` class
-- added `getCopyBackForwardList`, `goBackOrForward`, `canGoBackOrForward` and `goTo` methods for `InAppWebView` and `InAppBrowser`
+- added `getCopyBackForwardList`, `goBackOrForward`, `canGoBackOrForward` and `goTo` methods for the `InAppWebViewController` class
 
 ## 0.5.3
 
@@ -10,8 +21,8 @@
 ## 0.5.2
 
 - fixed some missing `result.success()` on Android and iOS
-- added `postUrl()` method for `InAppWebView` and `InAppBrowser`
-- added `loadData()` method for `InAppWebView` and `InAppBrowser`
+- added `postUrl()` method for the `InAppWebViewController` class
+- added `loadData()` method for the `InAppWebViewController` class
 
 ## 0.5.1
 

README.md

@@ -40,6 +40,8 @@ Classes:
 - [InAppLocalhostServer](#inapplocalhostserver-class): This class allows you to create a simple server on `http://localhost:[port]/`. The default `port` value is `8080`.
 - [CookieManager](#cookiemanager-class): Manages the cookies used by WebView instances. **NOTE for iOS**: available from iOS 11.0+.
 
+See the online [docs](https://pub.dartlang.org/documentation/flutter_inappbrowser/latest/) to get the full documentation.
+
 ### `InAppWebView` class
 Flutter Widget for adding an **inline native WebView** integrated in the flutter widget tree.
 
@@ -193,6 +195,9 @@ Initial url that will be loaded.
 #### InAppWebView.initialFile
 Initial asset file that will be loaded. See `InAppWebView.loadFile()` for explanation.
 
+#### InAppWebView.initialData
+Initial `InAppWebViewInitialData` that will be loaded.
+
 #### InAppWebView.initialHeaders
 Initial headers that will be used.
 
@@ -302,6 +307,49 @@ InAppWebView(
 }
 ```
 
+Event `onScrollChanged` fires when the `InAppWebView` scrolls.
+`x` represents the current horizontal scroll origin in pixels.
+`y` represents the current vertical scroll origin in pixels.
+```dart
+InAppWebView(
+    initialUrl: "https://flutter.io/",
+    onScrollChanged: (InAppWebViewController controller, int x, int y) {}
+}
+```
+
+#### Future\<String\> InAppWebViewController.getUrl
+
+Gets the URL for the current page.
+This is not always the same as the URL passed to `InAppWebView.onLoadStarted` because although the load for that URL has begun, the current page may not have changed.
+
+```dart
+inAppWebViewController.getUrl();
+```
+
+#### Future\<String\> InAppWebViewController.getTitle
+
+Gets the title for the current page.
+
+```dart
+inAppWebViewController.getTitle();
+```
+
+#### Future\<int\> InAppWebViewController.getProgress
+
+Gets the progress for the current page. The progress value is between 0 and 100.
+
+```dart
+inAppWebViewController.getProgress();
+```
+
+#### Future\<List\<int\>\> InAppWebViewController.getFavicon
+
+Gets the favicon for the current page.
+
+```dart
+inAppWebViewController.getFavicon();
+```
+
 #### Future\<void\> InAppWebViewController.loadUrl
 
 Loads the given `url` with optional `headers` specified as a map from name to value.
@@ -744,7 +792,7 @@ inAppBrowser.open({String url = "about:blank", Map<String, String> headers = con
 
 #### Future\<void\> InAppBrowser.openFile
 
-Opens the giver `assetFilePath` file in a new `InAppBrowser` instance. The other arguments are the same of `InAppBrowser.open()`.
+Opens the given `assetFilePath` file in a new `InAppBrowser` instance. The other arguments are the same of `InAppBrowser.open()`.
 
 To be able to load your local files (assets, js, css, etc.), you need to add them in the `assets` section of the `pubspec.yaml` file, otherwise they cannot be found!
 
@@ -778,6 +826,16 @@ inAppBrowser.openFile("assets/index.html");
 inAppBrowser.openFile(String assetFilePath, {Map<String, String> headers = const {}, Map<String, dynamic> options = const {}});
 ```
 
+#### static Future\<void\> InAppBrowser.openData
+
+Opens a new `InAppBrowser` instance with `data` as a content, using `baseUrl` as the base URL for it.
+The `mimeType` parameter specifies the format of the data.
+The `encoding` parameter specifies the encoding of the data.
+
+```dart
+InAppBrowser.openData(String data, {String mimeType = "text/html", String encoding = "utf8", String baseUrl = "about:blank", Map<String, dynamic> options = const {}});
+```
+
 #### static Future\<void\> InAppBrowser.openWithSystemBrowser
 
 This is a static method that opens an `url` in the system browser. You wont be able to use the `InAppBrowser` methods here!
@@ -841,6 +899,14 @@ inAppBrowser.isOpened();
 
 #### Events
 
+Event `onBrowserCreated` fires when the `InAppBrowser` is created.
+```dart
+  @override
+  void onBrowserCreated() {
+
+  }
+```
+
 Event `onLoadStart` fires when the `InAppBrowser` starts to load an `url`.
 ```dart
   @override
@@ -911,6 +977,17 @@ Event `onLoadResource` fires when the `InAppBrowser` webview loads a resource.
   }
 ```
 
+Event `onScrollChanged` fires when the `InAppBrowser` webview scrolls.
+`x` represents the current horizontal scroll origin in pixels.
+`y` represents the current vertical scroll origin in pixels.
+```dart
+  @override
+  void onScrollChanged(int x, int y) {
+                                                                         
+  }
+
+```
+
 ### `ChromeSafariBrowser` class
 [Chrome Custom Tabs](https://developer.android.com/reference/android/support/customtabs/package-summary) on Android / [SFSafariViewController](https://developer.apple.com/documentation/safariservices/sfsafariviewcontroller) on iOS.
 

android/src/main/java/com/pichillilorenzo/flutter_inappbrowser/FlutterWebView.java

@@ -40,12 +40,19 @@ public class FlutterWebView implements PlatformView, MethodCallHandler  {
 
     String initialUrl = (String) params.get("initialUrl");
     String initialFile = (String) params.get("initialFile");
+    Map<String, String> initialData = (Map<String, String>) params.get("initialData");
     Map<String, String> initialHeaders = (Map<String, String>) params.get("initialHeaders");
     HashMap<String, Object> initialOptions = (HashMap<String, Object>) params.get("initialOptions");
 
     InAppWebViewOptions options = new InAppWebViewOptions();
     options.parse(initialOptions);
 
+    webView = new InAppWebView(context, this, id, options);
+    webView.prepare();
+
+    channel = new MethodChannel(registrar.messenger(), "com.pichillilorenzo/flutter_inappwebview_" + id);
+    channel.setMethodCallHandler(this);
+
     if (initialFile != null) {
       try {
         initialUrl = Util.getUrlAsset(registrar, initialFile);
@@ -56,12 +63,14 @@ public class FlutterWebView implements PlatformView, MethodCallHandler  {
       }
     }
 
-    webView = new InAppWebView(context, this, id, options);
-    webView.prepare();
-
-    channel = new MethodChannel(registrar.messenger(), "com.pichillilorenzo/flutter_inappwebview_" + id);
-    channel.setMethodCallHandler(this);
-
+    if (initialData != null) {
+      String data = initialData.get("data");
+      String mimeType = initialData.get("mimeType");
+      String encoding = initialData.get("encoding");
+      String baseUrl = initialData.get("baseUrl");
+      webView.loadDataWithBaseURL(baseUrl, data, mimeType, encoding, null);
+    }
+    else
       webView.loadUrl(initialUrl, initialHeaders);
   }
 
@@ -76,6 +85,15 @@ public class FlutterWebView implements PlatformView, MethodCallHandler  {
     String jsWrapper;
     String urlFile;
     switch (call.method) {
+      case "getUrl":
+        result.success((webView != null) ? webView.getUrl() : null);
+        break;
+      case "getTitle":
+        result.success((webView != null) ? webView.getTitle() : null);
+        break;
+      case "getProgress":
+        result.success((webView != null) ? webView.getProgress() : null);
+        break;
       case "loadUrl":
         if (webView != null)
           webView.loadUrl(call.argument("url").toString(), (Map<String, String>) call.argument("headers"), result);

android/src/main/java/com/pichillilorenzo/flutter_inappbrowser/InAppBrowserActivity.java

@@ -52,7 +52,7 @@ public class InAppBrowserActivity extends AppCompatActivity {
 
     Bundle b = getIntent().getExtras();
     uuid = b.getString("uuid");
-    String url = b.getString("url");
+
     HashMap<String, Object> optionsMap = (HashMap<String, Object>) b.getSerializable("options");
 
     options = new InAppBrowserOptions();
@@ -62,16 +62,29 @@ public class InAppBrowserActivity extends AppCompatActivity {
     webViewOptions.parse(optionsMap);
     webView.options = webViewOptions;
 
-    headers = (HashMap<String, String>) b.getSerializable("headers");
-
     InAppBrowserFlutterPlugin.webViewActivities.put(uuid, this);
 
     actionBar = getSupportActionBar();
 
     prepareView();
 
+    Boolean isData = b.getBoolean("isData");
+    if (!isData) {
+      headers = (HashMap<String, String>) b.getSerializable("headers");
+      String url = b.getString("url");
       webView.loadUrl(url, headers);
-    //webView.loadData("<!DOCTYPE assets> <assets lang=\"en\"> <head> <meta charset=\"UTF-8\"> <title>Document</title> </head> <body> ciao <img src=\"https://via.placeholder.com/350x150\" /> <img src=\"./images/test\" alt=\"not found\" /></body> </assets>", "text/assets", "utf8");
+    }
+    else {
+      String data = b.getString("data");
+      String mimeType = b.getString("mimeType");
+      String encoding = b.getString("encoding");
+      String baseUrl = b.getString("baseUrl");
+      webView.loadDataWithBaseURL(baseUrl, data, mimeType, encoding, null);
+    }
+
+    Map<String, Object> obj = new HashMap<>();
+    obj.put("uuid", uuid);
+    InAppBrowserFlutterPlugin.channel.invokeMethod("onBrowserCreated", obj);
 
   }
 
@@ -164,6 +177,24 @@ public class InAppBrowserActivity extends AppCompatActivity {
     return true;
   }
 
+  public String getUrl() {
+    if (webView != null)
+      return webView.getUrl();
+    return null;
+  }
+
+  public String getWebViewTitle() {
+    if (webView != null)
+      return webView.getTitle();
+    return null;
+  }
+
+  public Integer getProgress() {
+    if (webView != null)
+      return webView.getProgress();
+    return null;
+  }
+
   public void loadUrl(String url, MethodChannel.Result result) {
     if (webView != null) {
       webView.loadUrl(url, result);

android/src/main/java/com/pichillilorenzo/flutter_inappbrowser/InAppBrowserFlutterPlugin.java

@@ -97,6 +97,8 @@ public class InAppBrowserFlutterPlugin implements MethodCallHandler {
 
     switch (call.method) {
       case "open":
+        boolean isData = (boolean) call.argument("isData");
+        if (!isData) {
           final String url_final = call.argument("url").toString();
 
           final boolean useChromeSafariBrowser = (boolean) call.argument("useChromeSafariBrowser");
@@ -162,6 +164,30 @@ public class InAppBrowserFlutterPlugin implements MethodCallHandler {
               }
             }
           });
+        }
+        else {
+          this.activity.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+              HashMap<String, Object> options = (HashMap<String, Object>) call.argument("options");
+              String data = call.argument("data").toString();
+              String mimeType = call.argument("mimeType").toString();
+              String encoding = call.argument("encoding").toString();
+              String baseUrl = call.argument("baseUrl").toString();
+              openData(uuid, options, data, mimeType, encoding, baseUrl);
+              result.success(true);
+            }
+          });
+        }
+        break;
+      case "getUrl":
+        result.success(getUrl(uuid));
+        break;
+      case "getTitle":
+        result.success(getTitle(uuid));
+        break;
+      case "getProgress":
+        result.success(getProgress(uuid));
         break;
       case "loadUrl":
         loadUrl(uuid, call.argument("url").toString(), (Map<String, String>) call.argument("headers"), result);
@@ -370,7 +396,7 @@ public class InAppBrowserFlutterPlugin implements MethodCallHandler {
     Intent intent = null;
     Bundle extras = new Bundle();
     extras.putString("url", url);
-
+    extras.putBoolean("isData", false);
     extras.putString("uuid", uuid);
     extras.putSerializable("options", options);
     extras.putSerializable("headers", (Serializable) headers);
@@ -408,6 +434,43 @@ public class InAppBrowserFlutterPlugin implements MethodCallHandler {
     result.error(LOG_TAG, "No WebView fallback declared.", null);
   }
 
+  public void openData(String uuid, HashMap<String, Object> options, String data, String mimeType, String encoding, String baseUrl) {
+    Intent intent = new Intent(activity, InAppBrowserActivity.class);
+    Bundle extras = new Bundle();
+
+    extras.putBoolean("isData", true);
+    extras.putString("uuid", uuid);
+    extras.putSerializable("options", options);
+    extras.putString("data", data);
+    extras.putString("mimeType", mimeType);
+    extras.putString("encoding", encoding);
+    extras.putString("baseUrl", baseUrl);
+
+    intent.putExtras(extras);
+    activity.startActivity(intent);
+  }
+
+  private String getUrl(String uuid) {
+    InAppBrowserActivity inAppBrowserActivity = webViewActivities.get(uuid);
+    if (inAppBrowserActivity != null)
+      return inAppBrowserActivity.getUrl();
+    return null;
+  }
+
+  private String getTitle(String uuid) {
+    InAppBrowserActivity inAppBrowserActivity = webViewActivities.get(uuid);
+    if (inAppBrowserActivity != null)
+      return inAppBrowserActivity.getWebViewTitle();
+    return null;
+  }
+
+  private Integer getProgress(String uuid) {
+    InAppBrowserActivity inAppBrowserActivity = webViewActivities.get(uuid);
+    if (inAppBrowserActivity != null)
+      return inAppBrowserActivity.getProgress();
+    return null;
+  }
+
   public void loadUrl(String uuid, String url, Map<String, String> headers, Result result) {
     InAppBrowserActivity inAppBrowserActivity = webViewActivities.get(uuid);
     if (inAppBrowserActivity != null) {

android/src/main/java/com/pichillilorenzo/flutter_inappbrowser/InAppWebView/InAppWebView.java

@@ -18,6 +18,7 @@ import android.webkit.WebView;
 
 import com.pichillilorenzo.flutter_inappbrowser.FlutterWebView;
 import com.pichillilorenzo.flutter_inappbrowser.InAppBrowserActivity;
+import com.pichillilorenzo.flutter_inappbrowser.InAppBrowserFlutterPlugin;
 import com.pichillilorenzo.flutter_inappbrowser.JavaScriptBridgeInterface;
 import com.pichillilorenzo.flutter_inappbrowser.Util;
 
@@ -431,4 +432,26 @@ public class InAppWebView extends WebView {
     return result;
   }
 
+  @Override
+  protected void onScrollChanged (int l,
+                                  int t,
+                                  int oldl,
+                                  int oldt) {
+    super.onScrollChanged(l, t, oldl, oldt);
+
+    float scale = getResources().getDisplayMetrics().density;
+    int x = (int) (l/scale);
+    int y = (int) (t/scale);
+
+    Map<String, Object> obj = new HashMap<>();
+    if (inAppBrowserActivity != null)
+      obj.put("uuid", inAppBrowserActivity.uuid);
+    obj.put("x", x);
+    obj.put("y", y);
+    getChannel().invokeMethod("onScrollChanged", obj);
+  }
+
+  private MethodChannel getChannel() {
+    return (inAppBrowserActivity != null) ? InAppBrowserFlutterPlugin.channel : flutterWebView.channel;
+  }
 }

example/lib/main.dart

@@ -4,6 +4,11 @@ import 'package:flutter/material.dart';
 import 'package:flutter_inappbrowser/flutter_inappbrowser.dart';
 
 class MyInAppBrowser extends InAppBrowser {
+  @override
+  Future onBrowserCreated() async {
+    print("\n\nBrowser Ready!\n\n");
+  }
+
   @override
   Future onLoadStart(String url) async {
     print("\n\nStarted $url\n\n");
@@ -16,6 +21,7 @@ class MyInAppBrowser extends InAppBrowser {
   Future onLoadStop(String url) async {
     print("\n\nStopped $url\n\n");
 
+//    print(base64.encode(await this.webViewController.getFavicon()));
 //    WebHistory history = await this.webViewController.getCopyBackForwardList();
 //    print(history.list.length);
 //    print(history.currentIndex);
@@ -23,6 +29,7 @@ class MyInAppBrowser extends InAppBrowser {
 //    for(WebHistoryItem item in history.list) {
 //      print(item.title);
 //    }
+
 //
 //    print(await this.webViewController.canGoBackOrForward(1));
 //    if (await this.webViewController.canGoBackOrForward(-2)) {
@@ -132,6 +139,11 @@ class MyInAppBrowser extends InAppBrowser {
 //    this.webViewController.injectStyleFile("https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css");
   }
 
+  @override
+  Future onScrollChanged(int x, int y) async {
+//    print(x.toString() + " " + y.toString());
+  }
+
   @override
   void onLoadError(String url, int code, String message) {
     print("\n\nCan't load $url.. Error: $message\n\n");
@@ -308,11 +320,13 @@ class _MyAppState extends State<MyApp> {
 //              await CookieManager.setCookie("https://flutter.io/", "my_cookie2", "cookieValue2", domain: "flutter.io", expiresDate: 1540838864611);
 //              await CookieManager.setCookie("https://flutter.io/", "my_cookie", "cookieValue", domain: "flutter.io", expiresDate: 1540838864611);
 
+//              await inAppBrowserFallback.openData("<html><head><title>Data example</title></head><body><p>This is a \"p\" tag</p></body></html>", options: {});
+
               await inAppBrowserFallback.open(url: "https://flutter.io/", options: {
                 //"useOnLoadResource": true,
                 //"hidden": true,
                 //"toolbarTopFixedTitle": "Fixed title",
-                "useShouldOverrideUrlLoading": true
+                "useShouldOverrideUrlLoading": true,
                 //"hideUrlBar": true,
                 //"toolbarTop": false,
                 //"toolbarBottom": false
@@ -382,6 +396,7 @@ class _MyAppState extends State<MyApp> {
 //                  ),
 //                  child: InAppWebView(
 //                    initialUrl: "https://flutter.io/",
+//                    //initialData: InAppWebViewInitialData("<html><head><title>Data example</title></head><body><p>This is a \"p\" tag</p></body></html>"),
 //                    initialHeaders: {
 //
 //                    },

flutter_inappbrowser.iml

@@ -20,6 +20,7 @@
       <excludeFolder url="file://$MODULE_DIR$/example/ios/.symlinks/plugins/flutter_inappbrowser/example/.dart_tool" />
       <excludeFolder url="file://$MODULE_DIR$/example/ios/.symlinks/plugins/flutter_inappbrowser/example/.pub" />
       <excludeFolder url="file://$MODULE_DIR$/example/ios/.symlinks/plugins/flutter_inappbrowser/example/build" />
+      <excludeFolder url="file://$MODULE_DIR$/example/ios/.symlinks/plugins/flutter_inappbrowser/example/ios/Flutter/flutter_assets/packages" />
       <excludeFolder url="file://$MODULE_DIR$/example/ios/Flutter/flutter_assets/packages" />
     </content>
     <orderEntry type="sourceFolder" forTests="false" />

ios/Classes/InAppBrowserWebViewController.swift

@@ -137,7 +137,7 @@ class InAppWebView_IBWrapper: InAppWebView {
     }
 }
 
-class InAppBrowserWebViewController: UIViewController, WKUIDelegate, WKNavigationDelegate, UITextFieldDelegate, WKScriptMessageHandler {
+class InAppBrowserWebViewController: UIViewController, UIScrollViewDelegate, WKUIDelegate, WKNavigationDelegate, UITextFieldDelegate, WKScriptMessageHandler {
     
     @IBOutlet var webView: InAppWebView_IBWrapper!
     @IBOutlet var closeButton: UIButton!
@@ -161,6 +161,10 @@ class InAppBrowserWebViewController: UIViewController, WKUIDelegate, WKNavigatio
     var browserOptions: InAppBrowserOptions?
     var webViewOptions: InAppWebViewOptions?
     var initHeaders: [String: String]?
+    var initData: String?
+    var initMimeType: String?
+    var initEncoding: String?
+    var initBaseUrl: String?
     var isHidden = false
     var uuid: String = ""
     var WKNavigationMap: [String: [String: Any]] = [:]
@@ -186,6 +190,7 @@ class InAppBrowserWebViewController: UIViewController, WKUIDelegate, WKNavigatio
         
         webView.uiDelegate = self
         webView.navigationDelegate = self
+        webView.scrollView.delegate = self
         
         urlField.delegate = self
         urlField.text = self.currentURL?.absoluteString
@@ -211,8 +216,14 @@ class InAppBrowserWebViewController: UIViewController, WKUIDelegate, WKNavigatio
         spinner.isHidden = false
         spinner.stopAnimating()
         
+        if self.initData == nil {
             loadUrl(url: self.currentURL!, headers: self.initHeaders)
+        }
+        else {
+            loadData(data: initData!, mimeType: initMimeType!, encoding: initEncoding!, baseUrl: initBaseUrl!)
+        }
         
+        navigationDelegate?.onBrowserCreated(uuid: uuid, webView: webView)
     }
     
     // Prevent crashes on closing windows
@@ -369,10 +380,11 @@ class InAppBrowserWebViewController: UIViewController, WKUIDelegate, WKNavigatio
         currentURL = url
         updateUrlTextField(url: (currentURL?.absoluteString)!)
         
-        if headers != nil {
+        if let mutableRequest = (request as NSURLRequest).mutableCopy() as? NSMutableURLRequest {
             for (key, value) in headers! {
-                request.setValue(value, forHTTPHeaderField: key)
+                mutableRequest.setValue(value, forHTTPHeaderField: key)
             }
+            request = mutableRequest as URLRequest
         }
         
         webView.load(request)
@@ -582,6 +594,7 @@ class InAppBrowserWebViewController: UIViewController, WKUIDelegate, WKNavigatio
                 currentURL = url
                 updateUrlTextField(url: (url.absoluteString))
             }
+            
         }
         
         
@@ -693,6 +706,14 @@ class InAppBrowserWebViewController: UIViewController, WKUIDelegate, WKNavigatio
         }
     }
     
+    func scrollViewDidScroll(_ scrollView: UIScrollView) {
+        if navigationDelegate != nil {
+            let x = Int(scrollView.contentOffset.x / scrollView.contentScaleFactor)
+            let y = Int(scrollView.contentOffset.y / scrollView.contentScaleFactor)
+            navigationDelegate?.onScrollChanged(uuid: self.uuid, webView: webView, x: x, y: y)
+        }
+    }
+    
     func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) {
         if message.name.starts(with: "console") {
             var messageLevel = "LOG"
@@ -960,4 +981,5 @@ class InAppBrowserWebViewController: UIViewController, WKUIDelegate, WKNavigatio
         
         return result;
     }
+
 }

ios/Classes/InAppWebView.swift

@@ -10,6 +10,8 @@ import WebKit
 
 public class InAppWebView: WKWebView {
     
+    var historyOffset = 0
+    
     public func goBackOrForward(steps: Int) {
         if canGoBackOrForward(steps: steps) {
             if (steps > 0) {

lib/flutter_inappbrowser.dart

@@ -127,6 +127,10 @@ class InAppBrowser {
 
   Future<dynamic> _handleMethod(MethodCall call) async {
     switch(call.method) {
+      case "onBrowserCreated":
+        this._isOpened = true;
+        onBrowserCreated();
+        break;
       case "onExit":
         this._isOpened = false;
         onExit();
@@ -199,12 +203,12 @@ class InAppBrowser {
     args.putIfAbsent('options', () => options);
     args.putIfAbsent('openWithSystemBrowser', () => false);
     args.putIfAbsent('isLocalFile', () => false);
+    args.putIfAbsent('isData', () => false);
     args.putIfAbsent('useChromeSafariBrowser', () => false);
     await _ChannelManager.channel.invokeMethod('open', args);
-    this._isOpened = true;
   }
 
-  ///Opens the giver [assetFilePath] file in a new [InAppBrowser] instance. The other arguments are the same of [InAppBrowser.open()].
+  ///Opens the given [assetFilePath] file in a new [InAppBrowser] instance. The other arguments are the same of [InAppBrowser.open()].
   ///
   ///To be able to load your local files (assets, js, css, etc.), you need to add them in the `assets` section of the `pubspec.yaml` file, otherwise they cannot be found!
   ///
@@ -243,9 +247,28 @@ class InAppBrowser {
     args.putIfAbsent('options', () => options);
     args.putIfAbsent('openWithSystemBrowser', () => false);
     args.putIfAbsent('isLocalFile', () => true);
+    args.putIfAbsent('isData', () => false);
+    args.putIfAbsent('useChromeSafariBrowser', () => false);
+    await _ChannelManager.channel.invokeMethod('open', args);
+  }
+
+  ///Opens a new [InAppBrowser] instance with [data] as a content, using [baseUrl] as the base URL for it.
+  ///The [mimeType] parameter specifies the format of the data.
+  ///The [encoding] parameter specifies the encoding of the data.
+  Future<void> openData(String data, {String mimeType = "text/html", String encoding = "utf8", String baseUrl = "about:blank", Map<String, dynamic> options = const {}}) async {
+    assert(data != null);
+    Map<String, dynamic> args = <String, dynamic>{};
+    args.putIfAbsent('uuid', () => uuid);
+    args.putIfAbsent('options', () => options);
+    args.putIfAbsent('data', () => data);
+    args.putIfAbsent('mimeType', () => mimeType);
+    args.putIfAbsent('encoding', () => encoding);
+    args.putIfAbsent('baseUrl', () => baseUrl);
+    args.putIfAbsent('openWithSystemBrowser', () => false);
+    args.putIfAbsent('isLocalFile', () => false);
+    args.putIfAbsent('isData', () => true);
     args.putIfAbsent('useChromeSafariBrowser', () => false);
     await _ChannelManager.channel.invokeMethod('open', args);
-    this._isOpened = true;
   }
 
   ///This is a static method that opens an [url] in the system browser. You wont be able to use the [InAppBrowser] methods here!
@@ -256,6 +279,7 @@ class InAppBrowser {
     args.putIfAbsent('url', () => url);
     args.putIfAbsent('headers', () => {});
     args.putIfAbsent('isLocalFile', () => false);
+    args.putIfAbsent('isData', () => false);
     args.putIfAbsent('openWithSystemBrowser', () => true);
     args.putIfAbsent('useChromeSafariBrowser', () => false);
     return await _ChannelManager.channel.invokeMethod('open', args);
@@ -319,6 +343,11 @@ class InAppBrowser {
     return this._isOpened;
   }
 
+  ///Event fires when the [InAppBrowser] is created.
+  void onBrowserCreated() {
+
+  }
+
   ///Event fires when the [InAppBrowser] starts to load an [url].
   void onLoadStart(String url) {
 
@@ -365,6 +394,13 @@ class InAppBrowser {
 
   }
 
+  ///Event fires when the [InAppBrowser] webview scrolls.
+  ///[x] represents the current horizontal scroll origin in pixels.
+  ///[y] represents the current vertical scroll origin in pixels.
+  void onScrollChanged(int x, int y) {
+
+  }
+
   void _throwIsAlreadyOpened({String message = ''}) {
     if (this.isOpened()) {
       throw Exception(['Error: ${ (message.isEmpty) ? '' : message + ' '}The browser is already opened.']);
@@ -496,6 +532,28 @@ typedef void onWebViewProgressChangedCallback(InAppWebViewController controller,
 typedef void onWebViewConsoleMessageCallback(InAppWebViewController controller, ConsoleMessage consoleMessage);
 typedef void shouldOverrideUrlLoadingCallback(InAppWebViewController controller, String url);
 typedef void onWebViewLoadResourceCallback(InAppWebViewController controller, WebResourceResponse response, WebResourceRequest request);
+typedef void onWebViewScrollChangedCallback(InAppWebViewController controller, int x, int y);
+
+///Initial [data] as a content for an [InAppWebView] instance, using [baseUrl] as the base URL for it.
+///The [mimeType] property specifies the format of the data.
+///The [encoding] property specifies the encoding of the data.
+class InAppWebViewInitialData {
+  String data;
+  String mimeType;
+  String encoding;
+  String baseUrl;
+
+  InAppWebViewInitialData(this.data, {this.mimeType = "text/html", this.encoding = "utf8", this.baseUrl = "about:blank"});
+
+  Map<String, String> toMap() {
+    return {
+      "data": data,
+      "mimeType": mimeType,
+      "encoding": encoding,
+      "baseUrl": baseUrl
+    };
+  }
+}
 
 ///InAppWebView Widget class.
 ///
@@ -563,10 +621,17 @@ class InAppWebView extends StatefulWidget {
   ///**NOTE only for iOS**: In some cases, the [response.data] of a [response] with `text/assets` encoding could be empty.
   final onWebViewLoadResourceCallback onLoadResource;
 
+  ///Event fires when the [InAppWebView] scrolls.
+  ///[x] represents the current horizontal scroll origin in pixels.
+  ///[y] represents the current vertical scroll origin in pixels.
+  final onWebViewScrollChangedCallback onScrollChanged;
+
   ///Initial url that will be loaded.
   final String initialUrl;
   ///Initial asset file that will be loaded. See [InAppWebView.loadFile()] for explanation.
   final String initialFile;
+  ///Initial [InAppWebViewInitialData] that will be loaded.
+  final InAppWebViewInitialData initialData;
   ///Initial headers that will be used.
   final Map<String, String> initialHeaders;
   ///Initial options that will be used.
@@ -577,6 +642,7 @@ class InAppWebView extends StatefulWidget {
     Key key,
     this.initialUrl = "about:blank",
     this.initialFile,
+    this.initialData,
     this.initialHeaders = const {},
     this.initialOptions = const {},
     this.onWebViewCreated,
@@ -587,6 +653,7 @@ class InAppWebView extends StatefulWidget {
     this.onProgressChanged,
     this.shouldOverrideUrlLoading,
     this.onLoadResource,
+    this.onScrollChanged,
     this.gestureRecognizers,
   }) : super(key: key);
 
@@ -620,6 +687,7 @@ class _InAppWebViewState extends State<InAppWebView> {
           creationParams: <String, dynamic>{
               'initialUrl': widget.initialUrl,
               'initialFile': widget.initialFile,
+              'initialData': widget.initialData?.toMap(),
               'initialHeaders': widget.initialHeaders,
               'initialOptions': widget.initialOptions
             },
@@ -754,6 +822,14 @@ class InAppWebViewController {
         else
           _inAppBrowser.onConsoleMessage(ConsoleMessage(sourceURL, lineNumber, message, messageLevel));
         break;
+      case "onScrollChanged":
+        int x = call.arguments["x"];
+        int y = call.arguments["y"];
+        if (_widget != null)
+          _widget.onScrollChanged(this, x, y);
+        else
+          _inAppBrowser.onScrollChanged(x, y);
+        break;
       case "onCallJsHandler":
         String handlerName = call.arguments["handlerName"];
         List<dynamic> args = jsonDecode(call.arguments["args"]);
@@ -768,6 +844,57 @@ class InAppWebViewController {
     }
   }
 
+  ///Gets the URL for the current page.
+  ///This is not always the same as the URL passed to [InAppWebView.onLoadStarted] because although the load for that URL has begun, the current page may not have changed.
+  Future<String> getUrl() async {
+    Map<String, dynamic> args = <String, dynamic>{};
+    if (_inAppBrowserUuid != null) {
+      _inAppBrowser._throwIsNotOpened();
+      args.putIfAbsent('uuid', () => _inAppBrowserUuid);
+    }
+    return await _channel.invokeMethod('getUrl', args);
+  }
+
+  ///Gets the title for the current page.
+  Future<String> getTitle() async {
+    Map<String, dynamic> args = <String, dynamic>{};
+    if (_inAppBrowserUuid != null) {
+      _inAppBrowser._throwIsNotOpened();
+      args.putIfAbsent('uuid', () => _inAppBrowserUuid);
+    }
+    return await _channel.invokeMethod('getTitle', args);
+  }
+
+  ///Gets the progress for the current page. The progress value is between 0 and 100.
+  Future<int> getProgress() async {
+    Map<String, dynamic> args = <String, dynamic>{};
+    if (_inAppBrowserUuid != null) {
+      _inAppBrowser._throwIsNotOpened();
+      args.putIfAbsent('uuid', () => _inAppBrowserUuid);
+    }
+    return await _channel.invokeMethod('getProgress', args);
+  }
+
+  ///Gets the favicon for the current page.
+  Future<List<int>> getFavicon() async {
+    var completer = new Completer<List<int>>();
+    var faviconData = new List<int>();
+    HttpClient client = new HttpClient();
+    var url = Uri.parse(await getUrl());
+    // solution found here: https://stackoverflow.com/a/15750809/4637638
+    var faviconUrl = Uri.parse("https://plus.google.com/_/favicon?domain_url=" + url.scheme + "://" + url.host);
+
+    client.getUrl(faviconUrl).then((HttpClientRequest request) {
+      return request.close();
+    }).then((HttpClientResponse response) {
+      response.listen((List<int> data) {
+        faviconData = data;
+      }, onDone: () => completer.complete(faviconData));
+    });
+
+    return completer.future;
+  }
+
   ///Loads the given [url] with optional [headers] specified as a map from name to value.
   Future<void> loadUrl(String url, {Map<String, String> headers = const {}}) async {
     assert(url != null && url.isNotEmpty);

pubspec.yaml

 name: flutter_inappbrowser
 description: A Flutter plugin that allows you to add an inline webview or open an in-app browser window. (inspired by the popular cordova-plugin-inappbrowser).
-version: 0.5.4
+version: 0.5.5
 author: Lorenzo Pichilli <pichillilorenzo@gmail.com>
 homepage: https://github.com/pichillilorenzo/flutter_inappbrowser