Example of gadget XML specification

Below is the code from the JIRA Introduction gadget.

Note about Path to Resource

Note that the resource com.atlassian.jira.gadgets:common is specific to JIRA.

The path to the Atlassian Gadgets JavaScript Framework is as follows:

In Atlassian Gadgets 1.0.x, the JavaScript framework is available in JIRA only and is not part of the Atlassian Gadgets framework. The path in JIRA 4.0.x is: #requireResource("com.atlassian.jira.gadgets:common").
In Atlassian Gadgets 2.0 and later, the JavaScript framework has been extracted from JIRA and made part of the Gadgets framework. The path is: #requireResource("com.atlassian.gadgets.publisher:ajs-gadgets")

The JIRA Introduction Gadget

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<?xml version="1.0" encoding="UTF-8" ?>
<Module>
  <ModulePrefs
      title="__MSG_gadget.introduction.title__"
      directory_title="__MSG_gadget.introduction.title__"
      description="__MSG_gadget.introduction.description__"
      author="Atlassian"
      author_affiliation="Atlassian" author_location="Sydney, Australia"
      title_url="http://www.atlassian.com/"
      screenshot="#staticResourceUrl("com.atlassian.jira.gadgets:average-age-chart-gadget", "intro-screenshot.png")"
      thumbnail="#staticResourceUrl("com.atlassian.jira.gadgets:average-age-chart-gadget", "intro-thumb.png")">
  <Optional feature="gadget-directory">
  <Param name="categories">JIRA</Param>
  </Optional>
  <Require feature="dynamic-height" />
  <Require feature="settitle" />
  #supportedLocales("gadget.common,gadget.introduction")
  </ModulePrefs>
  <Content type="html">
  <![CDATA[
        #requireResource("com.atlassian.jira.gadgets:common")
        #includeResources()
        <div id="intro-content"><div class="fullyCentered loading"></div></div>
        <script type="text/javascript">
            jQuery.namespace("jira.app.intro");
            jira.app.intro = function(){
                var response = function(){
                    var resize = function(){gadgets.window.adjustHeight();};

                    return function(response){
                        if (response.rc != 200){
                            AJS.log("Error on server call '__ATLASSIAN_BASE_URL__/rest/gadget/1.0/intro'.  Return code: " + response.rc);
                            var fragment = response.text.match(/<body[^>]*>([\S\s]*)<\/body[^>]*>/);
                            if (fragment && fragment.length > 0) {
                                jQuery("body").html("<div style=\"padding:0 20px\">" + fragment[1] + "</div>");
                                resize();
                            }
                            return;
                        }
                        if (response.data && response.data.html){
                            jQuery("#intro-content").removeClass("loading").html(response.data.html);
                        }
                        else {
                            jQuery("#intro-content").removeClass("loading").html("__MSG_gadget.introduction.welcome__");
                        }
                        resize();
                    };
                }();

                var setTitle = function(){
                    var isLocal = function(){return window.location.href.indexOf("__ATLASSIAN_BASE_URL__/plugins/servlet/gadgets/ifr") == 0;};
                    var instanceNameResponse = function(response){
                        if (response.data && response.data.instanceName){
                            gadgets.window.setTitle(response.data.instanceName + ": __MSG_gadget.introduction.title__");
                        }
                    };
                    return function(){
                        if (!isLocal()){
                            var params = {};
                            params[gadgets.io.RequestParameters.CONTENT_TYPE] = gadgets.io.ContentType.JSON;
                            params[gadgets.io.RequestParameters.METHOD] = gadgets.io.MethodType.GET;
                            gadgets.io.makeRequest("__ATLASSIAN_BASE_URL__/rest/gadget/1.0/instanceName", instanceNameResponse, params);
                        }
                    };
                }();
                return function(){
                    setTitle();
                    var params = {};
                    params[gadgets.io.RequestParameters.CONTENT_TYPE] = gadgets.io.ContentType.JSON;
                    params[gadgets.io.RequestParameters.METHOD] = gadgets.io.MethodType.GET;
                    gadgets.io.makeRequest("__ATLASSIAN_BASE_URL__/rest/gadget/1.0/intro", response, params);

                };
            }();
            gadgets.util.registerOnLoadHandler(jira.app.intro);
        </script>


  ]]>
  </Content>
</Module>

Creating your Gadget XML Specification