fi.semantum.strategia.widget.Browser.java Source code

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Here is the source code for fi.semantum.strategia.widget.Browser.java

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/*******************************************************************************
 * Copyright (c) 2014 Ministry of Transport and Communications (Finland).
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Semantum Oy - initial API and implementation
 *******************************************************************************/
package fi.semantum.strategia.widget;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;

import com.google.gwt.json.client.JSONException;
import com.vaadin.annotations.JavaScript;
import com.vaadin.ui.AbstractJavaScriptComponent;
import com.vaadin.ui.JavaScriptFunction;

import elemental.json.JsonArray;
import elemental.json.impl.JreJsonObject;

@JavaScript(value = { "app://VAADIN/js/d3.nocache.js", "app://VAADIN/js/map.nocache.js" })
public class Browser extends AbstractJavaScriptComponent {

    private static final long serialVersionUID = 400460883943268636L;

    public interface BrowserListener {
        void select(double x, double y, String uuid);

        void save(String name, Map<String, BrowserNodeState> states);
    }

    private ArrayList<BrowserListener> listeners = new ArrayList<BrowserListener>();

    public Browser(BrowserNode[] nodes, BrowserLink[] links, int width, int height) {
        addFunction("select", new JavaScriptFunction() {

            private static final long serialVersionUID = -8281255257252572037L;

            @Override
            public void call(JsonArray arguments) throws JSONException {
                for (BrowserListener listener : listeners)
                    listener.select(arguments.get(0).asNumber(), arguments.get(1).asNumber(),
                            arguments.get(2).asString());
            }

        });
        addFunction("save", new JavaScriptFunction() {

            private static final long serialVersionUID = -237728055512115104L;

            @Override
            public void call(JsonArray arguments) throws JSONException {
                JreJsonObject o = arguments.get(1);
                Map<String, BrowserNodeState> states = new HashMap<String, BrowserNodeState>();
                for (String uuid : o.keys()) {
                    JreJsonObject o2 = (JreJsonObject) o.get(uuid);
                    BrowserNodeState ns = new BrowserNodeState();
                    ns.x = o2.get("x").asNumber();
                    ns.y = o2.get("y").asNumber();
                    ns.fixed = o2.get("fixed").asBoolean();
                    states.put(uuid, ns);
                }
                for (BrowserListener listener : listeners)
                    listener.save(arguments.getString(0), states);
            }

        });
        update(nodes, links, width, height, true);
    }

    public void addListener(BrowserListener listener) {
        listeners.add(listener);
    }

    @Override
    public BrowserState getState() {
        return (BrowserState) super.getState();
    }

    public void update(BrowserNode[] nodes, BrowserLink[] links, int width, int height, boolean setPositions) {
        BrowserState state = getState();
        state.w = width;
        state.h = height;
        state.nodes = nodes;
        state.links = links;
        state.setPositions = setPositions;
    }

}