ro.nextreports.server.web.dashboard.chart.SWFObject.java Source code

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Here is the source code for ro.nextreports.server.web.dashboard.chart.SWFObject.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package ro.nextreports.server.web.dashboard.chart;

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

import org.apache.wicket.Component;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.behavior.Behavior;
import org.apache.wicket.markup.ComponentTag;
import org.apache.wicket.markup.head.IHeaderResponse;
import org.apache.wicket.markup.head.JavaScriptHeaderItem;
import org.apache.wicket.request.cycle.RequestCycle;
import org.apache.wicket.request.resource.PackageResourceReference;

/**
 * http://cwiki.apache.org/WICKET/open-flash-chart-and-wicket.html
 */
public class SWFObject extends Behavior {

    private static final long serialVersionUID = 1L;

    private Map<String, String> parameters = new HashMap<String, String>();
    private Map<String, String> attributes = new HashMap<String, String>();

    private String version;
    private String flashUrl;
    private String width; // can be in percent (ex 100%)
    private String height; // can be in percent (ex 100%)
    private Component component;

    /**
     * Construct.
     * <p/>
     * version can be a string in the format of
     * 'majorVersion.minorVersion.revision'. An example would be: "6.0.65". Or
     * you can just require the major version, such as "6".
     * 
     * @param flashUrl
     *            The url of your swf file.
     * @param width
     *            width of swf
     * @param height
     *            height of movie
     * @param version
     *            Flash version to support
     */
    public SWFObject(String flashUrl, String width, String height, String version) {
        if (flashUrl == null) {
            throw new IllegalArgumentException("Argument [flashUrl] cannot be null");
        }

        this.flashUrl = flashUrl;
        this.width = width;
        this.height = height;
        this.version = version;
    }

    public String getJavaScript() {
        final String id = component.getMarkupId();
        String parObj = buildDataObject(getParameters());
        String attObj = buildDataObject(getAttributes());

        // embedSWF: function(swfUrlStr, replaceElemIdStr, widthStr, heightStr, swfVersionStr, xiSwfUrlStr, flashvarsObj, parObj, attObj)
        String javascript = String.format("swfobject.embedSWF('%s','%s', '%s', '%s', '%s', '%s', %s, %s );",
                flashUrl, id, width, height, version, "expressInstall.swf", parObj, attObj);

        // see http://old.nabble.com/Re%3A-Graphs%2C-Charts-and-Wicket-p21987222.html
        AjaxRequestTarget target = RequestCycle.get().find(AjaxRequestTarget.class);
        if (target != null) {
            target.appendJavaScript(javascript);
        }

        return javascript;
    }

    @Override
    public void bind(Component component) {
        this.component = component;
        component.setOutputMarkupId(true);
    }

    @Override
    public void renderHead(Component component, IHeaderResponse response) {
        response.render(JavaScriptHeaderItem
                .forReference(new PackageResourceReference(SWFObject.class, "swfobject-2.2.js")));
        response.render(JavaScriptHeaderItem.forScript(getJavaScript(), null));
    }

    @Override
    public void onComponentTag(Component component, ComponentTag tag) {
    }

    public void addParameter(String name, String value) {
        parameters.put(name, value);
    }

    public void addAttribute(String name, String value) {
        attributes.put(name, value);
    }

    protected Map<String, String> getParameters() {
        return parameters;
    }

    protected Map<String, String> getAttributes() {
        return attributes;
    }

    private String buildDataObject(Map<String, String> data) {
        String quote = "\"";
        if ((data != null) && !data.isEmpty()) {
            StringBuilder result = new StringBuilder();
            int size = getParameters().entrySet().size();
            int count = 0;
            for (Map.Entry<String, String> e : getParameters().entrySet()) {
                result.append("{");
                result.append(quote).append(e.getKey()).append(quote).append(":").append(quote).append(e.getValue())
                        .append(quote);
                result.append("}");
                if (count < size - 1) {
                    result.append(",");
                }
                count++;
            }
            return result.toString();
        }

        return "{}";
    }

}