com.nzv.gwt.ga.impl.GoogleAnalyticsImpl.java Source code

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Here is the source code for com.nzv.gwt.ga.impl.GoogleAnalyticsImpl.java

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/**
 * Copyright 2011 ArcBees Inc.
 *
 * 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 com.nzv.gwt.ga.impl;

import com.google.gwt.dom.client.Document;
import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.ScriptElement;
import com.google.gwt.user.client.Window;
import com.nzv.gwt.ga.GoogleAnalytics;

/**
 * Default {@link GoogleAnalytics} implementation that uses JSNI to
 * expose Google Analytics javascript methods.
 *
 * @author Christian Goudreau
 */
public class GoogleAnalyticsImpl implements GoogleAnalytics {
    @Override
    public native void trackEvent(String category, String action) /*-{
                                                                  $wnd._gaq.push( [ '_trackEvent', category, action ] );
                                                                  }-*/;

    @Override
    public native void trackEvent(String category, String action, String optLabel, int optValue) /*-{
                                                                                                 $wnd._gaq.push( [ '_trackEvent', category, action, optLabel, optValue ] );
                                                                                                 }-*/;

    public native void trackPageview(String pageName) /*-{
                                                      if (!pageName.match( "^/" ) == "/") {
                                                      pageName = "/" + pageName;
                                                      }
                                                          
                                                      $wnd._gaq.push( [ '_trackPageview', pageName ] );
                                                      }-*/;

    @Override
    public native void trackPageview() /*-{
                                       $wnd._gaq.push( [ '_trackPageview' ] );
                                       }-*/;

    @Override
    public void init(final String userAccount) {
        final Element firstScript = Document.get().getElementsByTagName("script").getItem(0);
        final String source = "var _gaq = _gaq || [];_gaq.push(['_setAccount', '" + userAccount
                + "']);_gaq.push(['_trackPageview']);";
        final ScriptElement config = Document.get().createScriptElement(source);

        firstScript.getParentNode().insertBefore(config, firstScript);

        final ScriptElement script = Document.get().createScriptElement();

        // Add the google analytics script.
        script.setSrc(("https:".equals(Window.Location.getProtocol()) ? "https://ssl" : "http://www")
                + ".google-analytics.com/ga.js");
        script.setType("text/javascript");
        script.setAttribute("async", "true");

        firstScript.getParentNode().insertBefore(script, firstScript);
    }

    @Override
    public native void addAccount(String trackerName, String userAccount) /*-{
                                                                          $wnd._gaq.push( [ '" + trackerName + "._setAccount', '" + userAccount + "' ] );
                                                                          }-*/;

    @Override
    public native void trackPageview(String trackerName, String pageName) /*-{
                                                                          if (!pageName.match( "^/" ) == "/") {
                                                                          pageName = "/" + pageName;
                                                                          }
                                                                              
                                                                          $wnd._gaq.push( [ '" + trackerName + "._trackPageview', pageName ] );
                                                                          }-*/;

    @Override
    public native void trackEvent(String trackerName, String category, String action) /*-{
                                                                                      $wnd._gaq.push( [ '" + trackerName + "._trackEvent', category, action ] );
                                                                                      }-*/;

    @Override
    public native void trackEvent(String trackerName, String category, String action, String optLabel,
            int optValue) /*-{
                          $wnd._gaq.push( [ '" + trackerName + "._trackEvent', category, action, optLabel, optValue ] );
                          }-*/;
}