es.deusto.weblab.client.experiments.controlapp.ui.ControlAppExperiment.java Source code

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Here is the source code for es.deusto.weblab.client.experiments.controlapp.ui.ControlAppExperiment.java

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/*
* Copyright (C) 2012 onwards University of Deusto
* All rights reserved.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution.
*
* This software consists of contributions made by many individuals, 
* listed below:
*
* Author: FILLME
*
*/

package es.deusto.weblab.client.experiments.controlapp.ui;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.json.client.JSONObject;
import com.google.gwt.json.client.JSONParser;
import com.google.gwt.json.client.JSONString;
import com.google.gwt.json.client.JSONValue;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.Window.Location;
import com.google.gwt.user.client.ui.Anchor;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.VerticalPanel;

import es.deusto.weblab.client.configuration.IConfigurationRetriever;
import es.deusto.weblab.client.lab.experiments.IBoardBaseController;
import es.deusto.weblab.client.lab.experiments.UIExperimentBase;

public class ControlAppExperiment extends UIExperimentBase {

    public static final String LINK_PRESENTATION_PROPERTY_NAME = "link.presentation";
    public static final String EXTERNAL_WIDTH = "external.width";
    public static final String EXTERNAL_HEIGHT = "external.height";

    public static enum LinkPresentation {
        popup, iframe, redirection
    }

    public static final String DEFAULT_PRESENTATION_PROPERTY = LinkPresentation.redirection.name();

    public ControlAppExperiment(IConfigurationRetriever configurationRetriever,
            IBoardBaseController boardController) {
        super(configurationRetriever, boardController);
    }

    public LinkPresentation getLinkPresentation() {
        final String linkPresentationStr = this.configurationRetriever.getProperty(LINK_PRESENTATION_PROPERTY_NAME,
                DEFAULT_PRESENTATION_PROPERTY);
        try {
            return LinkPresentation.valueOf(linkPresentationStr);
        } catch (IllegalArgumentException iae) {
            return LinkPresentation.valueOf(DEFAULT_PRESENTATION_PROPERTY);
        }
    }

    @Override
    public JSONValue getInitialData() {
        final JSONObject object = new JSONObject();
        object.put("back", new JSONString(Location.getHref()));
        return object;
    }

    @Override
    public void start(final int time, String initialConfiguration) {
        final JSONObject value = JSONParser.parseStrict(initialConfiguration).isObject();
        final String baseURL = value.get("url").isString().stringValue();
        System.out.println("Control app URL=" + baseURL);

        final String width = this.configurationRetriever.getProperty(EXTERNAL_WIDTH, "" + Window.getClientWidth());
        final String height = this.configurationRetriever.getProperty(EXTERNAL_HEIGHT,
                "" + Window.getClientHeight());

        final long startTime = System.currentTimeMillis();

        switch (getLinkPresentation()) {
        case iframe:
            final String iframeUrl = baseURL.replace("TIME_REMAINING", "" + time);
            final HTML html = new HTML("<iframe src='" + iframeUrl + "' width='" + width + "' height='" + height
                    + "px' frameborder='0'/>");
            putWidget(html);
            break;
        case popup:
            final VerticalPanel vp = new VerticalPanel();
            final Button popupButton = new Button(i18n.remoteSystem());
            popupButton.addClickHandler(new ClickHandler() {

                @Override
                public void onClick(ClickEvent event) {
                    final long now = System.currentTimeMillis();
                    final long elapsed = now - startTime;
                    final long nowTime = 1000 * time - elapsed;
                    final String popupUrl = baseURL.replace("TIME_REMAINING", "" + (nowTime / 1000));

                    Window.open(popupUrl, "_blank", "resizable=yes,scrollbars=yes,dependent=yes,width=" + width
                            + ",height=" + height + ",top=0");
                }
            });
            vp.add(popupButton);
            putWidget(vp);
            break;
        case redirection:
            String redirectionUrl = baseURL.replace("TIME_REMAINING", "" + time);
            this.boardController.disableFinishOnClose();
            final Anchor anch = new Anchor(i18n.remoteSystem(), redirectionUrl);
            putWidget(anch);
            Location.replace(redirectionUrl);
            break;
        }
    }
}