/**
 * Copyright (c) 2008, 2011 Oracle and/or its affiliates.
 * All rights reserved. Use is subject to license terms.
 */
package webviewbrowser;

import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.HPos;
import javafx.geometry.VPos;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.TextField;
import javafx.scene.layout.ColumnConstraints;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.Priority;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;
import javafx.stage.Stage;
 
/**
 * Demonstrates a WebView object accessing a web page.
 *
 * @see javafx.scene.web.WebView
 * @see javafx.scene.web.WebEngine
 */
public class WebViewBrowser extends Application {
 
    private void init(Stage primaryStage) {
        Group root = new Group();
        primaryStage.setScene(new Scene(root));
        WebView view = new WebView();
        view.setMinSize(1024, 768);
        view.setPrefSize(1024, 768);
        final WebEngine eng = view.getEngine();
        eng.load("http://www.oracle.com/us/index.html");
        final TextField locationField = new TextField("http://www.oracle.com/us/index.html");
        locationField.setMaxHeight(Double.MAX_VALUE);
        Button goButton = new Button("Go");
        goButton.setDefaultButton(true);
        EventHandler<ActionEvent> goAction = new EventHandler<ActionEvent>() {
            @Override public void handle(ActionEvent event) {
                eng.load(locationField.getText());
            }
        };
        goButton.setOnAction(goAction);
        locationField.setOnAction(goAction);
        eng.locationProperty().addListener(new ChangeListener<String>() {
            @Override public void changed(ObservableValue<? extends String> observable, String oldValue, String newValue) {
                locationField.setText(newValue);
            }
        });
        GridPane grid = new GridPane();
        grid.setVgap(5);
        grid.setHgap(5);
        GridPane.setConstraints(locationField, 0, 0, 1, 1, HPos.CENTER, VPos.CENTER, Priority.ALWAYS, Priority.SOMETIMES);
        GridPane.setConstraints(goButton,1,0);
        GridPane.setConstraints(view, 0, 1, 2, 1, HPos.LEFT, VPos.CENTER, Priority.ALWAYS, Priority.ALWAYS);
        grid.getColumnConstraints().addAll(
                new ColumnConstraints(500, 100, Double.MAX_VALUE, Priority.ALWAYS, HPos.CENTER, true),
                new ColumnConstraints(40, 40, 40, Priority.NEVER, HPos.CENTER, true)
        );
        grid.getChildren().addAll(locationField, goButton, view);
        root.getChildren().add(grid);
    }
 
    @Override public void start(Stage primaryStage) throws Exception {
        init(primaryStage);
        primaryStage.show();
    }
    public static void main(String[] args) { launch(args); }
}