problem of JavaFX and javascript

Hello

I work with Javafx and facing a problem regarding the javafx and javascript event. I use WebView of javafx and points associated with the application of the swing.
I'm passing a url and be able to view the Web page.

The Web page contains a button that has a validation. After clicking on a popup alert is supposed to be opened against this validation.

But the alert does not come.
could you please enlight on it.

Kind regards
Dev.

Note that your question belongs in the forum later and JavaFX 2.0 not 1.x forum JavaFX (JavaFX 1.x did not have a WebView).

JavaFX 2.0 and later versions «JavaFX 2.0 and later forum»

---------------

To get windows pop up for WebView, you must implement an appropriate Manager.
Perhaps a future version of a WebView will provide implementations by default of these dialog boxes, but there is currently no default behavior for many of these methods in JavaFX 2.2 (i.e. basically they are simply ignored).

See WebEngine methods:
setOnAlert
setPromptHandler
setConfirmHandler
setCreatePopupHandler

For your example, you probably want to predict an EventHandler setOnAlert that creates a new dialog box that contains the alert information.

For example, the following code displays a couple of alerts when the user triggers them by pressing a button html with a javascript onclick handler:

import javafx.application.Application;
import static javafx.application.Application.launch;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.layout.StackPane;
import javafx.scene.web.*;
import javafx.stage.*;

public class WebViewWithPromptHandler extends Application {
  public static void main(String[] args) { launch(args); }
  @Override public void start(final Stage primaryStage) {
    WebView webView = new WebView();
    webView.getEngine().loadContent("");
    webView.getEngine().setOnAlert(new EventHandler>() {
      @Override public void handle(WebEvent event) {
        Stage popup = new Stage();
        popup.initOwner(primaryStage);
        popup.initStyle(StageStyle.UTILITY);
        popup.initModality(Modality.WINDOW_MODAL);

        StackPane content = new StackPane();
        content.getChildren().setAll(
          new Label(event.getData())
        );
        content.setPrefSize(200, 100);

        popup.setScene(new Scene(content));
        popup.showAndWait();
      }
    });

    final Scene scene = new Scene(webView);
    primaryStage.setScene(scene);
    primaryStage.show();
  }
}

-----------

If you want to use predefined and model logic of dialogue to set your WebView dialogue management, then refer to the ControlsFX project:
http://fxexperience.com/controlsfx/

Tags: Oracle

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