Update InAppWebChromeClient.java

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

@@ -9,6 +9,7 @@ import android.graphics.BitmapFactory;
 import android.graphics.Color;
 import android.net.Uri;
 import android.os.Build;
+import android.os.Message;
 import android.util.Log;
 import android.view.View;
 import android.webkit.ConsoleMessage;
@@ -18,6 +19,7 @@ import android.webkit.JsResult;
 import android.webkit.ValueCallback;
 import android.webkit.WebChromeClient;
 import android.webkit.WebView;
+import android.webkit.WebViewClient;
 import android.widget.EditText;
 import android.widget.FrameLayout;
 import android.widget.LinearLayout;
@@ -38,517 +40,540 @@ import io.flutter.plugin.common.PluginRegistry;
 import static android.app.Activity.RESULT_CANCELED;
 import static android.app.Activity.RESULT_OK;
 
-public class InAppWebChromeClient extends WebChromeClient implements PluginRegistry.ActivityResultListener {
-
-    protected static final String LOG_TAG = "IABWebChromeClient";
-    private PluginRegistry.Registrar registrar;
-    private FlutterWebView flutterWebView;
-    private InAppBrowserActivity inAppBrowserActivity;
-    private ValueCallback<Uri> mUploadMessage;
-    private final static int FILECHOOSER_RESULTCODE = 1;
-
-    private View mCustomView;
-    private WebChromeClient.CustomViewCallback mCustomViewCallback;
-    protected FrameLayout mFullscreenContainer;
-    private int mOriginalOrientation;
-    private int mOriginalSystemUiVisibility;
-
-    public InAppWebChromeClient(Object obj, PluginRegistry.Registrar registrar) {
-        super();
-        this.registrar = registrar;
-        if (obj instanceof InAppBrowserActivity)
-            this.inAppBrowserActivity = (InAppBrowserActivity) obj;
-        else if (obj instanceof FlutterWebView)
-            this.flutterWebView = (FlutterWebView) obj;
-
-        registrar.addActivityResultListener(this);
+public class InAppWebViewChromeClient extends WebChromeClient implements PluginRegistry.ActivityResultListener {
+
+  protected static final String LOG_TAG = "IABWebChromeClient";
+  private PluginRegistry.Registrar registrar;
+  private FlutterWebView flutterWebView;
+  private InAppBrowserActivity inAppBrowserActivity;
+  private ValueCallback<Uri> mUploadMessage;
+  private final static int FILECHOOSER_RESULTCODE = 1;
+
+  private View mCustomView;
+  private WebChromeClient.CustomViewCallback mCustomViewCallback;
+  private int mOriginalOrientation;
+  private int mOriginalSystemUiVisibility;
+
+  public InAppWebViewChromeClient(Object obj, PluginRegistry.Registrar registrar) {
+    super();
+    this.registrar = registrar;
+    if (obj instanceof InAppBrowserActivity)
+      this.inAppBrowserActivity = (InAppBrowserActivity) obj;
+    else if (obj instanceof FlutterWebView)
+      this.flutterWebView = (FlutterWebView) obj;
+
+    registrar.addActivityResultListener(this);
+  }
+
+  public Bitmap getDefaultVideoPoster() {
+    if (mCustomView == null) {
+      return null;
     }
-
-    public Bitmap getDefaultVideoPoster() {
-        if (mCustomView == null) {
-            return null;
-        }
-        return BitmapFactory.decodeResource(this.registrar.activeContext().getResources(), 2130837573);
-    }
-
-    public void onHideCustomView() {
-        View decorView = this.registrar.activity().getWindow().getDecorView();
-        ((FrameLayout) decorView).removeView(this.mCustomView);
-        this.mCustomView = null;
-        decorView.setSystemUiVisibility(this.mOriginalSystemUiVisibility);
-        this.registrar.activity().setRequestedOrientation(this.mOriginalOrientation);
-        this.mCustomViewCallback.onCustomViewHidden();
-        this.mCustomViewCallback = null;
+    return BitmapFactory.decodeResource(this.registrar.activeContext().getResources(), 2130837573);
+  }
+
+  public void onHideCustomView() {
+    View decorView = this.registrar.activity().getWindow().getDecorView();
+    ((FrameLayout) decorView).removeView(this.mCustomView);
+    this.mCustomView = null;
+    decorView.setSystemUiVisibility(this.mOriginalSystemUiVisibility);
+    this.registrar.activity().setRequestedOrientation(this.mOriginalOrientation);
+    this.mCustomViewCallback.onCustomViewHidden();
+    this.mCustomViewCallback = null;
+  }
+
+  public void onShowCustomView(View paramView, WebChromeClient.CustomViewCallback paramCustomViewCallback) {
+    if (this.mCustomView != null) {
+      onHideCustomView();
+      return;
     }
-
-    public void onShowCustomView(View paramView, WebChromeClient.CustomViewCallback paramCustomViewCallback) {
-        if (this.mCustomView != null) {
-            onHideCustomView();
-            return;
-        }
-        View decorView = this.registrar.activity().getWindow().getDecorView();
-        this.mCustomView = paramView;
-        this.mOriginalSystemUiVisibility = decorView.getSystemUiVisibility();
-        this.mOriginalOrientation = this.registrar.activity().getRequestedOrientation();
-        this.mCustomViewCallback = paramCustomViewCallback;
-        this.mCustomView.setBackgroundColor(Color.parseColor("#000000"));
-        ((FrameLayout) decorView).addView(this.mCustomView, new FrameLayout.LayoutParams(-1, -1));
-        decorView.setSystemUiVisibility(3846 | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
-    }
-
-    @Override
-    public boolean onJsAlert(final WebView view, String url, final String message,
-                             final JsResult result) {
-        Map<String, Object> obj = new HashMap<>();
-        if (inAppBrowserActivity != null)
-            obj.put("uuid", inAppBrowserActivity.uuid);
-        obj.put("message", message);
-
-        getChannel().invokeMethod("onJsAlert", obj, new MethodChannel.Result() {
-            @Override
-            public void success(Object response) {
-                String responseMessage = null;
-                String confirmButtonTitle = null;
-
-                if (response != null) {
-                    Map<String, Object> responseMap = (Map<String, Object>) response;
-                    responseMessage = (String) responseMap.get("message");
-                    confirmButtonTitle = (String) responseMap.get("confirmButtonTitle");
-                    Boolean handledByClient = (Boolean) responseMap.get("handledByClient");
-                    if (handledByClient != null && handledByClient) {
-                        Integer action = (Integer) responseMap.get("action");
-                        action = action != null ? action : 1;
-                        switch (action) {
-                            case 0:
-                                result.confirm();
-                                break;
-                            case 1:
-                            default:
-                                result.cancel();
-                        }
-                        return;
-                    }
-                }
-
-                createAlertDialog(view, message, result, responseMessage, confirmButtonTitle);
-            }
-
-            @Override
-            public void error(String s, String s1, Object o) {
-                Log.e(LOG_TAG, s + ", " + s1);
-                result.cancel();
-            }
-
-            @Override
-            public void notImplemented() {
-                createAlertDialog(view, message, result, null, null);
-            }
-        });
-
-        return true;
-    }
-
-    public void createAlertDialog(WebView view, String message, final JsResult result, String responseMessage, String confirmButtonTitle) {
-        String alertMessage = (responseMessage != null && !responseMessage.isEmpty()) ? responseMessage : message;
-
-        DialogInterface.OnClickListener clickListener = new DialogInterface.OnClickListener() {
-            @Override
-            public void onClick(DialogInterface dialog, int which) {
+    View decorView = this.registrar.activity().getWindow().getDecorView();
+    this.mCustomView = paramView;
+    this.mOriginalSystemUiVisibility = decorView.getSystemUiVisibility();
+    this.mOriginalOrientation = this.registrar.activity().getRequestedOrientation();
+    this.mCustomViewCallback = paramCustomViewCallback;
+    this.mCustomView.setBackgroundColor(Color.parseColor("#000000"));
+    ((FrameLayout) decorView).addView(this.mCustomView, new FrameLayout.LayoutParams(-1, -1));
+    decorView.setSystemUiVisibility(3846 | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
+  }
+
+  @Override
+  public boolean onJsAlert(final WebView view, String url, final String message,
+                           final JsResult result) {
+    Map<String, Object> obj = new HashMap<>();
+    if (inAppBrowserActivity != null)
+      obj.put("uuid", inAppBrowserActivity.uuid);
+    obj.put("message", message);
+
+    getChannel().invokeMethod("onJsAlert", obj, new MethodChannel.Result() {
+      @Override
+      public void success(Object response) {
+        String responseMessage = null;
+        String confirmButtonTitle = null;
+
+        if (response != null) {
+          Map<String, Object> responseMap = (Map<String, Object>) response;
+          responseMessage = (String) responseMap.get("message");
+          confirmButtonTitle = (String) responseMap.get("confirmButtonTitle");
+          Boolean handledByClient = (Boolean) responseMap.get("handledByClient");
+          if (handledByClient != null && handledByClient) {
+            Integer action = (Integer) responseMap.get("action");
+            action = action != null ? action : 1;
+            switch (action) {
+              case 0:
                 result.confirm();
-                dialog.dismiss();
-            }
-        };
-
-        AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(view.getContext(), R.style.Theme_AppCompat_Dialog_Alert);
-        alertDialogBuilder.setMessage(alertMessage);
-        if (confirmButtonTitle != null && !confirmButtonTitle.isEmpty()) {
-            alertDialogBuilder.setPositiveButton(confirmButtonTitle, clickListener);
-        } else {
-            alertDialogBuilder.setPositiveButton(android.R.string.ok, clickListener);
-        }
-
-        alertDialogBuilder.setOnCancelListener(new DialogInterface.OnCancelListener() {
-            @Override
-            public void onCancel(DialogInterface dialog) {
+                break;
+              case 1:
+              default:
                 result.cancel();
-                dialog.dismiss();
             }
-        });
+            return;
+          }
+        }
 
-        AlertDialog alertDialog = alertDialogBuilder.create();
-        alertDialog.show();
+        createAlertDialog(view, message, result, responseMessage, confirmButtonTitle);
+      }
+
+      @Override
+      public void error(String s, String s1, Object o) {
+        Log.e(LOG_TAG, s + ", " + s1);
+        result.cancel();
+      }
+
+      @Override
+      public void notImplemented() {
+        createAlertDialog(view, message, result, null, null);
+      }
+    });
+
+    return true;
+  }
+
+  public void createAlertDialog(WebView view, String message, final JsResult result, String responseMessage, String confirmButtonTitle) {
+    String alertMessage = (responseMessage != null && !responseMessage.isEmpty()) ? responseMessage : message;
+
+    DialogInterface.OnClickListener clickListener = new DialogInterface.OnClickListener() {
+      @Override
+      public void onClick(DialogInterface dialog, int which) {
+        result.confirm();
+        dialog.dismiss();
+      }
+    };
+
+    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(view.getContext(), R.style.Theme_AppCompat_Dialog_Alert);
+    alertDialogBuilder.setMessage(alertMessage);
+    if (confirmButtonTitle != null && !confirmButtonTitle.isEmpty()) {
+      alertDialogBuilder.setPositiveButton(confirmButtonTitle, clickListener);
+    } else {
+      alertDialogBuilder.setPositiveButton(android.R.string.ok, clickListener);
     }
 
-    @Override
-    public boolean onJsConfirm(final WebView view, String url, final String message,
-                               final JsResult result) {
-        Map<String, Object> obj = new HashMap<>();
-        if (inAppBrowserActivity != null)
-            obj.put("uuid", inAppBrowserActivity.uuid);
-        obj.put("message", message);
-
-        getChannel().invokeMethod("onJsConfirm", obj, new MethodChannel.Result() {
-            @Override
-            public void success(Object response) {
-                String responseMessage = null;
-                String confirmButtonTitle = null;
-                String cancelButtonTitle = null;
-
-                if (response != null) {
-                    Map<String, Object> responseMap = (Map<String, Object>) response;
-                    responseMessage = (String) responseMap.get("message");
-                    confirmButtonTitle = (String) responseMap.get("confirmButtonTitle");
-                    cancelButtonTitle = (String) responseMap.get("cancelButtonTitle");
-                    Boolean handledByClient = (Boolean) responseMap.get("handledByClient");
-                    if (handledByClient != null && handledByClient) {
-                        Integer action = (Integer) responseMap.get("action");
-                        action = action != null ? action : 1;
-                        switch (action) {
-                            case 0:
-                                result.confirm();
-                                break;
-                            case 1:
-                            default:
-                                result.cancel();
-                        }
-                        return;
-                    }
-                }
-
-                createConfirmDialog(view, message, result, responseMessage, confirmButtonTitle, cancelButtonTitle);
-            }
-
-            @Override
-            public void error(String s, String s1, Object o) {
-                Log.e(LOG_TAG, s + ", " + s1);
-                result.cancel();
-            }
-
-            @Override
-            public void notImplemented() {
-                createConfirmDialog(view, message, result, null, null, null);
-            }
-        });
+    alertDialogBuilder.setOnCancelListener(new DialogInterface.OnCancelListener() {
+      @Override
+      public void onCancel(DialogInterface dialog) {
+        result.cancel();
+        dialog.dismiss();
+      }
+    });
 
-        return true;
-    }
+    AlertDialog alertDialog = alertDialogBuilder.create();
+    alertDialog.show();
+  }
 
-    public void createConfirmDialog(WebView view, String message, final JsResult result, String responseMessage, String confirmButtonTitle, String cancelButtonTitle) {
-        String alertMessage = (responseMessage != null && !responseMessage.isEmpty()) ? responseMessage : message;
-        DialogInterface.OnClickListener confirmClickListener = new DialogInterface.OnClickListener() {
-            @Override
-            public void onClick(DialogInterface dialog, int which) {
+  @Override
+  public boolean onJsConfirm(final WebView view, String url, final String message,
+                             final JsResult result) {
+    Map<String, Object> obj = new HashMap<>();
+    if (inAppBrowserActivity != null)
+      obj.put("uuid", inAppBrowserActivity.uuid);
+    obj.put("message", message);
+
+    getChannel().invokeMethod("onJsConfirm", obj, new MethodChannel.Result() {
+      @Override
+      public void success(Object response) {
+        String responseMessage = null;
+        String confirmButtonTitle = null;
+        String cancelButtonTitle = null;
+
+        if (response != null) {
+          Map<String, Object> responseMap = (Map<String, Object>) response;
+          responseMessage = (String) responseMap.get("message");
+          confirmButtonTitle = (String) responseMap.get("confirmButtonTitle");
+          cancelButtonTitle = (String) responseMap.get("cancelButtonTitle");
+          Boolean handledByClient = (Boolean) responseMap.get("handledByClient");
+          if (handledByClient != null && handledByClient) {
+            Integer action = (Integer) responseMap.get("action");
+            action = action != null ? action : 1;
+            switch (action) {
+              case 0:
                 result.confirm();
-                dialog.dismiss();
-            }
-        };
-        DialogInterface.OnClickListener cancelClickListener = new DialogInterface.OnClickListener() {
-            @Override
-            public void onClick(DialogInterface dialog, int which) {
+                break;
+              case 1:
+              default:
                 result.cancel();
-                dialog.dismiss();
             }
-        };
-
-        AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(view.getContext(), R.style.Theme_AppCompat_Dialog_Alert);
-        alertDialogBuilder.setMessage(alertMessage);
-        if (confirmButtonTitle != null && !confirmButtonTitle.isEmpty()) {
-            alertDialogBuilder.setPositiveButton(confirmButtonTitle, confirmClickListener);
-        } else {
-            alertDialogBuilder.setPositiveButton(android.R.string.ok, confirmClickListener);
-        }
-        if (cancelButtonTitle != null && !cancelButtonTitle.isEmpty()) {
-            alertDialogBuilder.setNegativeButton(cancelButtonTitle, cancelClickListener);
-        } else {
-            alertDialogBuilder.setNegativeButton(android.R.string.cancel, cancelClickListener);
+            return;
+          }
         }
 
-        alertDialogBuilder.setOnCancelListener(new DialogInterface.OnCancelListener() {
-            @Override
-            public void onCancel(DialogInterface dialog) {
-                result.cancel();
-                dialog.dismiss();
-            }
-        });
-
-        AlertDialog alertDialog = alertDialogBuilder.create();
-        alertDialog.show();
+        createConfirmDialog(view, message, result, responseMessage, confirmButtonTitle, cancelButtonTitle);
+      }
+
+      @Override
+      public void error(String s, String s1, Object o) {
+        Log.e(LOG_TAG, s + ", " + s1);
+        result.cancel();
+      }
+
+      @Override
+      public void notImplemented() {
+        createConfirmDialog(view, message, result, null, null, null);
+      }
+    });
+
+    return true;
+  }
+
+  public void createConfirmDialog(WebView view, String message, final JsResult result, String responseMessage, String confirmButtonTitle, String cancelButtonTitle) {
+    String alertMessage = (responseMessage != null && !responseMessage.isEmpty()) ? responseMessage : message;
+    DialogInterface.OnClickListener confirmClickListener = new DialogInterface.OnClickListener() {
+      @Override
+      public void onClick(DialogInterface dialog, int which) {
+        result.confirm();
+        dialog.dismiss();
+      }
+    };
+    DialogInterface.OnClickListener cancelClickListener = new DialogInterface.OnClickListener() {
+      @Override
+      public void onClick(DialogInterface dialog, int which) {
+        result.cancel();
+        dialog.dismiss();
+      }
+    };
+
+    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(view.getContext(), R.style.Theme_AppCompat_Dialog_Alert);
+    alertDialogBuilder.setMessage(alertMessage);
+    if (confirmButtonTitle != null && !confirmButtonTitle.isEmpty()) {
+      alertDialogBuilder.setPositiveButton(confirmButtonTitle, confirmClickListener);
+    } else {
+      alertDialogBuilder.setPositiveButton(android.R.string.ok, confirmClickListener);
     }
-
-    @Override
-    public boolean onJsPrompt(final WebView view, String url, final String message,
-                              final String defaultValue, final JsPromptResult result) {
-        Map<String, Object> obj = new HashMap<>();
-        if (inAppBrowserActivity != null)
-            obj.put("uuid", inAppBrowserActivity.uuid);
-        obj.put("message", message);
-        obj.put("defaultValue", defaultValue);
-
-        getChannel().invokeMethod("onJsPrompt", obj, new MethodChannel.Result() {
-            @Override
-            public void success(Object response) {
-                String responseMessage = null;
-                String responseDefaultValue = null;
-                String confirmButtonTitle = null;
-                String cancelButtonTitle = null;
-                String value = null;
-
-                if (response != null) {
-                    Map<String, Object> responseMap = (Map<String, Object>) response;
-                    responseMessage = (String) responseMap.get("message");
-                    responseDefaultValue = (String) responseMap.get("defaultValue");
-                    confirmButtonTitle = (String) responseMap.get("confirmButtonTitle");
-                    cancelButtonTitle = (String) responseMap.get("cancelButtonTitle");
-                    value = (String) responseMap.get("value");
-                    Boolean handledByClient = (Boolean) responseMap.get("handledByClient");
-                    if (handledByClient != null && handledByClient) {
-                        Integer action = (Integer) responseMap.get("action");
-                        action = action != null ? action : 1;
-                        switch (action) {
-                            case 0:
-                                result.confirm(value);
-                                break;
-                            case 1:
-                            default:
-                                result.cancel();
-                        }
-                        return;
-                    }
-                }
-
-                createPromptDialog(view, message, defaultValue, result, responseMessage, responseDefaultValue, value, cancelButtonTitle, confirmButtonTitle);
-            }
-
-            @Override
-            public void error(String s, String s1, Object o) {
-                Log.e(LOG_TAG, s + ", " + s1);
-                result.cancel();
-            }
-
-            @Override
-            public void notImplemented() {
-                createPromptDialog(view, message, defaultValue, result, null, null, null, null, null);
-            }
-        });
-
-        return true;
+    if (cancelButtonTitle != null && !cancelButtonTitle.isEmpty()) {
+      alertDialogBuilder.setNegativeButton(cancelButtonTitle, cancelClickListener);
+    } else {
+      alertDialogBuilder.setNegativeButton(android.R.string.cancel, cancelClickListener);
     }
 
-    public void createPromptDialog(WebView view, String message, String defaultValue, final JsPromptResult result, String responseMessage, String responseDefaultValue, String value, String cancelButtonTitle, String confirmButtonTitle) {
-        FrameLayout layout = new FrameLayout(view.getContext());
-
-        final EditText input = new EditText(view.getContext());
-        input.setMaxLines(1);
-        input.setText((responseDefaultValue != null && !responseDefaultValue.isEmpty()) ? responseDefaultValue : defaultValue);
-        LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
-                LinearLayout.LayoutParams.MATCH_PARENT,
-                LinearLayout.LayoutParams.MATCH_PARENT);
-        input.setLayoutParams(lp);
-
-        layout.setPaddingRelative(45, 15, 45, 0);
-        layout.addView(input);
-
-        String alertMessage = (responseMessage != null && !responseMessage.isEmpty()) ? responseMessage : message;
-
-        final String finalValue = value;
-        DialogInterface.OnClickListener confirmClickListener = new DialogInterface.OnClickListener() {
-            @Override
-            public void onClick(DialogInterface dialog, int which) {
-                String text = input.getText().toString();
-                result.confirm(finalValue != null ? finalValue : text);
-                dialog.dismiss();
-            }
-        };
-        DialogInterface.OnClickListener cancelClickListener = new DialogInterface.OnClickListener() {
-            @Override
-            public void onClick(DialogInterface dialog, int which) {
+    alertDialogBuilder.setOnCancelListener(new DialogInterface.OnCancelListener() {
+      @Override
+      public void onCancel(DialogInterface dialog) {
+        result.cancel();
+        dialog.dismiss();
+      }
+    });
+
+    AlertDialog alertDialog = alertDialogBuilder.create();
+    alertDialog.show();
+  }
+
+  @Override
+  public boolean onJsPrompt(final WebView view, String url, final String message,
+                            final String defaultValue, final JsPromptResult result) {
+    Map<String, Object> obj = new HashMap<>();
+    if (inAppBrowserActivity != null)
+      obj.put("uuid", inAppBrowserActivity.uuid);
+    obj.put("message", message);
+    obj.put("defaultValue", defaultValue);
+
+    getChannel().invokeMethod("onJsPrompt", obj, new MethodChannel.Result() {
+      @Override
+      public void success(Object response) {
+        String responseMessage = null;
+        String responseDefaultValue = null;
+        String confirmButtonTitle = null;
+        String cancelButtonTitle = null;
+        String value = null;
+
+        if (response != null) {
+          Map<String, Object> responseMap = (Map<String, Object>) response;
+          responseMessage = (String) responseMap.get("message");
+          responseDefaultValue = (String) responseMap.get("defaultValue");
+          confirmButtonTitle = (String) responseMap.get("confirmButtonTitle");
+          cancelButtonTitle = (String) responseMap.get("cancelButtonTitle");
+          value = (String) responseMap.get("value");
+          Boolean handledByClient = (Boolean) responseMap.get("handledByClient");
+          if (handledByClient != null && handledByClient) {
+            Integer action = (Integer) responseMap.get("action");
+            action = action != null ? action : 1;
+            switch (action) {
+              case 0:
+                result.confirm(value);
+                break;
+              case 1:
+              default:
                 result.cancel();
-                dialog.dismiss();
             }
-        };
-
-        AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(view.getContext(), R.style.Theme_AppCompat_Dialog_Alert);
-        alertDialogBuilder.setMessage(alertMessage);
-        if (confirmButtonTitle != null && !confirmButtonTitle.isEmpty()) {
-            alertDialogBuilder.setPositiveButton(confirmButtonTitle, confirmClickListener);
-        } else {
-            alertDialogBuilder.setPositiveButton(android.R.string.ok, confirmClickListener);
-        }
-        if (cancelButtonTitle != null && !cancelButtonTitle.isEmpty()) {
-            alertDialogBuilder.setNegativeButton(cancelButtonTitle, cancelClickListener);
-        } else {
-            alertDialogBuilder.setNegativeButton(android.R.string.cancel, cancelClickListener);
+            return;
+          }
         }
 
-        alertDialogBuilder.setOnCancelListener(new DialogInterface.OnCancelListener() {
-            @Override
-            public void onCancel(DialogInterface dialog) {
-                result.cancel();
-                dialog.dismiss();
-            }
-        });
-
-        AlertDialog alertDialog = alertDialogBuilder.create();
-        alertDialog.setView(layout);
-        alertDialog.show();
-    }
-
-    @Override
-    public boolean onCreateWindow(WebView view, boolean dialog, boolean userGesture, android.os.Message resultMsg) {
-        WebView.HitTestResult result = view.getHitTestResult();
-        String data = result.getExtra();
-        Map<String, Object> obj = new HashMap<>();
-        if (inAppBrowserActivity != null)
-            obj.put("uuid", inAppBrowserActivity.uuid);
-        obj.put("url", data);
-        getChannel().invokeMethod("onTargetBlank", obj);
-        return false;
+        createPromptDialog(view, message, defaultValue, result, responseMessage, responseDefaultValue, value, cancelButtonTitle, confirmButtonTitle);
+      }
+
+      @Override
+      public void error(String s, String s1, Object o) {
+        Log.e(LOG_TAG, s + ", " + s1);
+        result.cancel();
+      }
+
+      @Override
+      public void notImplemented() {
+        createPromptDialog(view, message, defaultValue, result, null, null, null, null, null);
+      }
+    });
+
+    return true;
+  }
+
+  public void createPromptDialog(WebView view, String message, String defaultValue, final JsPromptResult result, String responseMessage, String responseDefaultValue, String value, String cancelButtonTitle, String confirmButtonTitle) {
+    FrameLayout layout = new FrameLayout(view.getContext());
+
+    final EditText input = new EditText(view.getContext());
+    input.setMaxLines(1);
+    input.setText((responseDefaultValue != null && !responseDefaultValue.isEmpty()) ? responseDefaultValue : defaultValue);
+    LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
+            LinearLayout.LayoutParams.MATCH_PARENT,
+            LinearLayout.LayoutParams.MATCH_PARENT);
+    input.setLayoutParams(lp);
+
+    layout.setPaddingRelative(45, 15, 45, 0);
+    layout.addView(input);
+
+    String alertMessage = (responseMessage != null && !responseMessage.isEmpty()) ? responseMessage : message;
+
+    final String finalValue = value;
+    DialogInterface.OnClickListener confirmClickListener = new DialogInterface.OnClickListener() {
+      @Override
+      public void onClick(DialogInterface dialog, int which) {
+        String text = input.getText().toString();
+        result.confirm(finalValue != null ? finalValue : text);
+        dialog.dismiss();
+      }
+    };
+    DialogInterface.OnClickListener cancelClickListener = new DialogInterface.OnClickListener() {
+      @Override
+      public void onClick(DialogInterface dialog, int which) {
+        result.cancel();
+        dialog.dismiss();
+      }
+    };
+
+    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(view.getContext(), R.style.Theme_AppCompat_Dialog_Alert);
+    alertDialogBuilder.setMessage(alertMessage);
+    if (confirmButtonTitle != null && !confirmButtonTitle.isEmpty()) {
+      alertDialogBuilder.setPositiveButton(confirmButtonTitle, confirmClickListener);
+    } else {
+      alertDialogBuilder.setPositiveButton(android.R.string.ok, confirmClickListener);
     }
-
-    @Override
-    public void onGeolocationPermissionsShowPrompt(final String origin, final GeolocationPermissions.Callback callback) {
-        Map<String, Object> obj = new HashMap<>();
-        if (inAppBrowserActivity != null)
-            obj.put("uuid", inAppBrowserActivity.uuid);
-        obj.put("origin", origin);
-        getChannel().invokeMethod("onGeolocationPermissionsShowPrompt", obj, new MethodChannel.Result() {
-            @Override
-            public void success(Object o) {
-                Map<String, Object> response = (Map<String, Object>) o;
-                if (response != null)
-                    callback.invoke((String) response.get("origin"), (Boolean) response.get("allow"), (Boolean) response.get("retain"));
-                else
-                    callback.invoke(origin, false, false);
-            }
-
-            @Override
-            public void error(String s, String s1, Object o) {
-                callback.invoke(origin, false, false);
-            }
-
-            @Override
-            public void notImplemented() {
-                callback.invoke(origin, false, false);
-            }
-        });
+    if (cancelButtonTitle != null && !cancelButtonTitle.isEmpty()) {
+      alertDialogBuilder.setNegativeButton(cancelButtonTitle, cancelClickListener);
+    } else {
+      alertDialogBuilder.setNegativeButton(android.R.string.cancel, cancelClickListener);
     }
 
-    @Override
-    public boolean onConsoleMessage(ConsoleMessage consoleMessage) {
-        Map<String, Object> obj = new HashMap<>();
-        if (inAppBrowserActivity != null)
-            obj.put("uuid", inAppBrowserActivity.uuid);
-        obj.put("sourceURL", consoleMessage.sourceId());
-        obj.put("lineNumber", consoleMessage.lineNumber());
-        obj.put("message", consoleMessage.message());
-        obj.put("messageLevel", consoleMessage.messageLevel().ordinal());
-        getChannel().invokeMethod("onConsoleMessage", obj);
-        return true;
-    }
-
-    @Override
-    public void onProgressChanged(WebView view, int progress) {
-        if (inAppBrowserActivity != null && inAppBrowserActivity.progressBar != null) {
-            inAppBrowserActivity.progressBar.setVisibility(View.VISIBLE);
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
-                inAppBrowserActivity.progressBar.setProgress(progress, true);
-            } else {
-                inAppBrowserActivity.progressBar.setProgress(progress);
-            }
-            if (progress == 100) {
-                inAppBrowserActivity.progressBar.setVisibility(View.GONE);
-            }
+    alertDialogBuilder.setOnCancelListener(new DialogInterface.OnCancelListener() {
+      @Override
+      public void onCancel(DialogInterface dialog) {
+        result.cancel();
+        dialog.dismiss();
+      }
+    });
+
+    AlertDialog alertDialog = alertDialogBuilder.create();
+    alertDialog.setView(layout);
+    alertDialog.show();
+  }
+
+  @Override
+  public boolean onCreateWindow(WebView view, boolean isDialog, boolean userGesture, final Message resultMsg) {
+    final Map<String, Object> obj = new HashMap<>();
+    if (inAppBrowserActivity != null)
+      obj.put("uuid", inAppBrowserActivity.uuid);
+
+    WebView.HitTestResult result = view.getHitTestResult();
+    String data = result.getExtra();
+
+    if (data == null) {
+      // to get the URL, create a temp weview
+      final WebView newWebView = new WebView(view.getContext());
+      // disable javascript
+      newWebView.getSettings().setJavaScriptEnabled(false);
+      newWebView.setWebViewClient(new WebViewClient(){
+        @Override
+        public void onPageStarted(WebView v, String url, Bitmap favicon) {
+          super.onPageStarted(v, url, favicon);
+
+          obj.put("url", url);
+          getChannel().invokeMethod("onTargetBlank", obj);
+
+          // stop webview loading
+          v.stopLoading();
+
+          // this will throw the error "Application attempted to call on a destroyed AwAutofillManager" that will kill the webview.
+          // that's ok.
+          v.destroy();
         }
-
-        Map<String, Object> obj = new HashMap<>();
-        if (inAppBrowserActivity != null)
-            obj.put("uuid", inAppBrowserActivity.uuid);
-        obj.put("progress", progress);
-        getChannel().invokeMethod("onProgressChanged", obj);
-
-        super.onProgressChanged(view, progress);
-    }
-
-    @Override
-    public void onReceivedTitle(WebView view, String title) {
-        super.onReceivedTitle(view, title);
-        if (inAppBrowserActivity != null && inAppBrowserActivity.actionBar != null && inAppBrowserActivity.options.toolbarTopFixedTitle.isEmpty())
-            inAppBrowserActivity.actionBar.setTitle(title);
-    }
-
-    @Override
-    public void onReceivedIcon(WebView view, Bitmap icon) {
-        super.onReceivedIcon(view, icon);
-    }
-
-    //The undocumented magic method override
-    //Eclipse will swear at you if you try to put @Override here
-    // For Android 3.0+
-    public void openFileChooser(ValueCallback<Uri> uploadMsg) {
-
-        mUploadMessage = uploadMsg;
-        Intent i = new Intent(Intent.ACTION_GET_CONTENT);
-        i.addCategory(Intent.CATEGORY_OPENABLE);
-        i.setType("image/*");
-        ((inAppBrowserActivity != null) ? inAppBrowserActivity : flutterWebView.activity).startActivityForResult(Intent.createChooser(i, "File Chooser"), FILECHOOSER_RESULTCODE);
-
-    }
-
-    // For Android 3.0+
-    public void openFileChooser(ValueCallback uploadMsg, String acceptType) {
-        mUploadMessage = uploadMsg;
-        Intent i = new Intent(Intent.ACTION_GET_CONTENT);
-        i.addCategory(Intent.CATEGORY_OPENABLE);
-        i.setType("*/*");
-        ((inAppBrowserActivity != null) ? inAppBrowserActivity : flutterWebView.activity).startActivityForResult(
-                Intent.createChooser(i, "File Browser"),
-                FILECHOOSER_RESULTCODE);
+      });
+      ((WebView.WebViewTransport)resultMsg.obj).setWebView(newWebView);
+      resultMsg.sendToTarget();
+      return true;
     }
 
-    //For Android 4.1
-    public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) {
-        mUploadMessage = uploadMsg;
-        Intent i = new Intent(Intent.ACTION_GET_CONTENT);
-        i.addCategory(Intent.CATEGORY_OPENABLE);
-        i.setType("image/*");
-        ((inAppBrowserActivity != null) ? inAppBrowserActivity : flutterWebView.activity).startActivityForResult(Intent.createChooser(i, "File Chooser"), FILECHOOSER_RESULTCODE);
-
+    obj.put("url", data);
+    getChannel().invokeMethod("onTargetBlank", obj);
+    return false;
+  }
+
+  @Override
+  public void onGeolocationPermissionsShowPrompt(final String origin, final GeolocationPermissions.Callback callback) {
+    Map<String, Object> obj = new HashMap<>();
+    if (inAppBrowserActivity != null)
+      obj.put("uuid", inAppBrowserActivity.uuid);
+    obj.put("origin", origin);
+    getChannel().invokeMethod("onGeolocationPermissionsShowPrompt", obj, new MethodChannel.Result() {
+      @Override
+      public void success(Object o) {
+        Map<String, Object> response = (Map<String, Object>) o;
+        if (response != null)
+          callback.invoke((String) response.get("origin"), (Boolean) response.get("allow"), (Boolean) response.get("retain"));
+        else
+          callback.invoke(origin, false, false);
+      }
+
+      @Override
+      public void error(String s, String s1, Object o) {
+        callback.invoke(origin, false, false);
+      }
+
+      @Override
+      public void notImplemented() {
+        callback.invoke(origin, false, false);
+      }
+    });
+  }
+
+  @Override
+  public boolean onConsoleMessage(ConsoleMessage consoleMessage) {
+    Map<String, Object> obj = new HashMap<>();
+    if (inAppBrowserActivity != null)
+      obj.put("uuid", inAppBrowserActivity.uuid);
+    obj.put("message", consoleMessage.message());
+    obj.put("messageLevel", consoleMessage.messageLevel().ordinal());
+    getChannel().invokeMethod("onConsoleMessage", obj);
+    return true;
+  }
+
+  @Override
+  public void onProgressChanged(WebView view, int progress) {
+    if (inAppBrowserActivity != null && inAppBrowserActivity.progressBar != null) {
+      inAppBrowserActivity.progressBar.setVisibility(View.VISIBLE);
+      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+        inAppBrowserActivity.progressBar.setProgress(progress, true);
+      } else {
+        inAppBrowserActivity.progressBar.setProgress(progress);
+      }
+      if (progress == 100) {
+        inAppBrowserActivity.progressBar.setVisibility(View.GONE);
+      }
     }
 
-    //For Android 5.0+
-    public boolean onShowFileChooser(
-            WebView webView, ValueCallback<Uri[]> filePathCallback,
-            FileChooserParams fileChooserParams) {
-        InAppBrowserFlutterPlugin.uploadMessageArray = filePathCallback;
-        try {
-            Intent contentSelectionIntent = new Intent(Intent.ACTION_GET_CONTENT);
-            contentSelectionIntent.addCategory(Intent.CATEGORY_OPENABLE);
-            contentSelectionIntent.setType("*/*");
-            Intent[] intentArray;
-            intentArray = new Intent[0];
-
-            Intent chooserIntent = new Intent(Intent.ACTION_CHOOSER);
-            chooserIntent.putExtra(Intent.EXTRA_INTENT, contentSelectionIntent);
-            chooserIntent.putExtra(Intent.EXTRA_TITLE, "Image Chooser");
-            chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, intentArray);
-            ((inAppBrowserActivity != null) ? inAppBrowserActivity : flutterWebView.activity).startActivityForResult(chooserIntent, FILECHOOSER_RESULTCODE);
-        } catch (ActivityNotFoundException e) {
-            e.printStackTrace();
-            return false;
-        }
-        return true;
+    Map<String, Object> obj = new HashMap<>();
+    if (inAppBrowserActivity != null)
+      obj.put("uuid", inAppBrowserActivity.uuid);
+    obj.put("progress", progress);
+    getChannel().invokeMethod("onProgressChanged", obj);
+
+    super.onProgressChanged(view, progress);
+  }
+
+  @Override
+  public void onReceivedTitle(WebView view, String title) {
+    super.onReceivedTitle(view, title);
+    if (inAppBrowserActivity != null && inAppBrowserActivity.actionBar != null && inAppBrowserActivity.options.toolbarTopFixedTitle.isEmpty())
+      inAppBrowserActivity.actionBar.setTitle(title);
+  }
+
+  @Override
+  public void onReceivedIcon(WebView view, Bitmap icon) {
+    super.onReceivedIcon(view, icon);
+  }
+
+  //The undocumented magic method override
+  //Eclipse will swear at you if you try to put @Override here
+  // For Android 3.0+
+  public void openFileChooser(ValueCallback<Uri> uploadMsg) {
+
+    mUploadMessage = uploadMsg;
+    Intent i = new Intent(Intent.ACTION_GET_CONTENT);
+    i.addCategory(Intent.CATEGORY_OPENABLE);
+    i.setType("image/*");
+    ((inAppBrowserActivity != null) ? inAppBrowserActivity : flutterWebView.activity).startActivityForResult(Intent.createChooser(i, "File Chooser"), FILECHOOSER_RESULTCODE);
+
+  }
+
+  // For Android 3.0+
+  public void openFileChooser(ValueCallback uploadMsg, String acceptType) {
+    mUploadMessage = uploadMsg;
+    Intent i = new Intent(Intent.ACTION_GET_CONTENT);
+    i.addCategory(Intent.CATEGORY_OPENABLE);
+    i.setType("*/*");
+    ((inAppBrowserActivity != null) ? inAppBrowserActivity : flutterWebView.activity).startActivityForResult(
+            Intent.createChooser(i, "File Browser"),
+            FILECHOOSER_RESULTCODE);
+  }
+
+  //For Android 4.1
+  public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) {
+    mUploadMessage = uploadMsg;
+    Intent i = new Intent(Intent.ACTION_GET_CONTENT);
+    i.addCategory(Intent.CATEGORY_OPENABLE);
+    i.setType("image/*");
+    ((inAppBrowserActivity != null) ? inAppBrowserActivity : flutterWebView.activity).startActivityForResult(Intent.createChooser(i, "File Chooser"), FILECHOOSER_RESULTCODE);
+
+  }
+
+  //For Android 5.0+
+  public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> filePathCallback, FileChooserParams fileChooserParams) {
+    InAppBrowserFlutterPlugin.uploadMessageArray = filePathCallback;
+    try {
+      Intent contentSelectionIntent = new Intent(Intent.ACTION_GET_CONTENT);
+      contentSelectionIntent.addCategory(Intent.CATEGORY_OPENABLE);
+      contentSelectionIntent.setType("*/*");
+      Intent[] intentArray;
+      intentArray = new Intent[0];
+
+      Intent chooserIntent = new Intent(Intent.ACTION_CHOOSER);
+      chooserIntent.putExtra(Intent.EXTRA_INTENT, contentSelectionIntent);
+      chooserIntent.putExtra(Intent.EXTRA_TITLE, "Image Chooser");
+      chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, intentArray);
+      ((inAppBrowserActivity != null) ? inAppBrowserActivity : flutterWebView.activity).startActivityForResult(chooserIntent, FILECHOOSER_RESULTCODE);
+    } catch (ActivityNotFoundException e) {
+      e.printStackTrace();
+      return false;
     }
-
-    @TargetApi(Build.VERSION_CODES.LOLLIPOP)
-    @Override
-    public boolean onActivityResult(int requestCode, int resultCode, Intent data) {
-        if (requestCode == FILECHOOSER_RESULTCODE && (resultCode == RESULT_OK || resultCode == RESULT_CANCELED) && InAppBrowserFlutterPlugin.uploadMessageArray != null) {
-            InAppBrowserFlutterPlugin.uploadMessageArray.onReceiveValue(WebChromeClient.FileChooserParams.parseResult(resultCode, data));
-        }
-        return true;
+    return true;
+  }
+
+  @TargetApi(Build.VERSION_CODES.LOLLIPOP)
+  @Override
+  public boolean onActivityResult(int requestCode, int resultCode, Intent data) {
+    if (requestCode == FILECHOOSER_RESULTCODE && (resultCode == RESULT_OK || resultCode == RESULT_CANCELED)) {
+      InAppBrowserFlutterPlugin.uploadMessageArray.onReceiveValue(WebChromeClient.FileChooserParams.parseResult(resultCode, data));
     }
+    return true;
+  }
 
-    private MethodChannel getChannel() {
-        return (inAppBrowserActivity != null) ? InAppBrowserFlutterPlugin.inAppBrowser.channel : flutterWebView.channel;
-    }
+  private MethodChannel getChannel() {
+    return (inAppBrowserActivity != null) ? InAppBrowserFlutterPlugin.inAppBrowser.channel : flutterWebView.channel;
+  }
 }