a custom browser using GroovyFX.

groovyfx_custombrowser.groovy

import groovyx.javafx.ClosureEventHandler
import groovyx.javafx.GroovyFX
import groovyx.javafx.SceneGraphBuilder
import javafx.animation.Interpolator
import javafx.animation.TranslateTransition
import javafx.util.Duration

GroovyFX.start({
    def loadAction = { view.engine.load(new URI(urlBox.getText()).toString()) }
    def stage = new SceneGraphBuilder().stage(title: "GroovyFXのテスト") {
        scene(width: 800, height: 600) {
            vbox(spacing: 10, layoutY: 10) {
                hbox(spacing: 10, alignment: "center") {
                    urlBox = textBox(columns: 40, action: loadAction);
                    button(text: "Load", onAction: loadAction)
                }
                view = webView(
                        engine: webEngine(location: "http://www.yahoo.co.jp/"),
                        prefWidth: 800, prefHeight: 400,
                        translateX: 800,
                        effect: reflection(),
                )
            }
        }
    }
    view.engine.loadTask.onDone = new ClosureEventHandler(action: {
        new TranslateTransition().with {
            node = view
            fromX = 800
            toX = 0
            interpolator = Interpolator.EASE_BOTH
            duration = new Duration(500)
            play()
        }
    })
    view.engine.loadTask.onStarted = new ClosureEventHandler(action: {
        new TranslateTransition().with {
            node = view
            fromX = 0
            toX = -800
            duration = new Duration(500)
            play()
        }
    })
    stage.visible = true
});

Hi, thank you for Interesting this. I updated this for JavaFX 2.0 build 36+ and newer GroovyFX.
https://gist.github.com/1101054