org.wso2.developerstudio.codenvy.ext.esb.client.inject.ESBJavaScriptInjector.java Source code

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Here is the source code for org.wso2.developerstudio.codenvy.ext.esb.client.inject.ESBJavaScriptInjector.java

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/*
* Copyright (c) 2014, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* Licensed 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 org.wso2.developerstudio.codenvy.ext.esb.client.inject;

import com.google.gwt.dom.client.Document;
import com.google.gwt.dom.client.HeadElement;
import com.google.gwt.dom.client.ScriptElement;
import com.google.gwt.dom.client.Element;
import com.google.gwt.user.client.Timer;

public class ESBJavaScriptInjector {

    private static HeadElement head;

    public static void inject(String javascript) {

        HeadElement head = getHead();
        new Timer() {

            public void run() {
                // goJsPlumb();
                goJS();
            }
        }.schedule(1);

        ScriptElement element = createScriptElement();
        element.setText(javascript);
        head.appendChild(element);
    }

    public static native void goJsPlumb() /*-{
                                              
                                          var t1 = $doc.getElementById('state1');
                                              
                                          var t2 = $doc.getElementById('state2');
                                          var targetOption = {anchor: "TopCenter",
                                          maxConnections: -1,
                                          isSource: false,
                                          isTarget: true,
                                          endpoint: ["Dot", {radius: 5}],
                                          paintStyle: {fillStyle: "#66FF00"},
                                          setDragAllowedWhenFull: true}
                                              
                                          var sourceOption = {anchor: "BottomCenter",
                                          maxConnections: -1,
                                          isSource: true,
                                          isTarget: false,
                                          endpoint: ["Dot", {radius: 5}],
                                          paintStyle: {fillStyle: "#FFEF00"},
                                          setDragAllowedWhenFull: true}
                                              
                                          $wnd.jsPlumb.bind("ready", function () {
                                              
                                          $wnd.jsPlumb.addEndpoint($doc.getElementById('state1'), targetOption);
                                          $wnd.jsPlumb.addEndpoint($doc.getElementById('state1'), sourceOption);
                                              
                                          $wnd.jsPlumb.addEndpoint($doc.getElementById('state2'), targetOption);
                                          $wnd.jsPlumb.addEndpoint($doc.getElementById('state2'), sourceOption);
                                              
                                          $wnd.jsPlumb.draggable($doc.getElementById('state1'));
                                          $wnd.jsPlumb.draggable($doc.getElementById('state2'));
                                          });
                                              
                                              
                                          }-*/;

    public static native void goJS() /*-{
                                         
                                     //$wnd.alert("starting...");
                                     $wnd.jsPlumb.ready(function () {
                                     // default settings for connectors
                                         
                                     var connectionParams = {
                                     connector: ["Flowchart", {cornerRadius: 1}],
                                     paintStyle: {
                                     lineWidth: 1,
                                     outlineColor: "black",
                                     outlineWidth: 0
                                     },
                                     detachable: false,
                                     endpointStyle: { radius: 1 }
                                     };
                                         
                                     $wnd.jsPlumb.connect({
                                     source: $doc.getElementById('state1'),
                                     target: $doc.getElementById('state2'),
                                     anchors: ["Right", "Bottom"]
                                     }, connectionParams);
                                         
                                         
                                     $wnd.jsPlumb.draggable($doc.getElementById('state1'));
                                     $wnd.jsPlumb.draggable($doc.getElementById('state2'));
                                         
                                     });
                                         
                                         
                                     }-*/;

    private static ScriptElement createScriptElement() {
        ScriptElement script = Document.get().createScriptElement();
        script.setAttribute("language", "javascript");
        return script;

    }

    private static HeadElement getHead() {
        if (head == null) {
            Element element = Document.get().getElementsByTagName("head").getItem(0);
            assert element != null : "HTML Head element required";
            HeadElement head = HeadElement.as(element);
            ESBJavaScriptInjector.head = head;
        }
        return ESBJavaScriptInjector.head;
    }
}