gadget.xml

   1 <?xml version="1.0" encoding="UTF-8"?>
   2 <Module>
   3
   4   <ModulePrefs
   5       title="dygraphs Gadget"
   6       description="Interactive, zoomable chart"
   7       author="Dan Vanderkam"
   8       author_email="dan@dygraphs.com"
   9       thumbnail="http://dygraphs.com/thumbnail.png"
  10       screenshot="http://dygraphs.com/screenshot.png"
  11       author_location="US"
  12       >
  13       -->
  14     <Require feature="idi" />
  15     <Require feature="locked-domain" />
  16   </ModulePrefs>
  17
  18   <UserPref name="_table_query_url" display_name="Data source url" required="true"/>
  19   <UserPref name="_table_query_refresh_interval" display_name="Data refresh interval (minutes)" default_value="300" datatype="enum" required="false">
  20     <EnumValue value="0" display_value="Do not refresh"/>
  21     <EnumValue value="60" display_value="1"/>
  22     <EnumValue value="300" display_value="5"/>
  23     <EnumValue value="1800" display_value="30"/>
  24   </UserPref>
  25   <UserPref name="_dg_rollPeriod" display_name="Roll Period" required="false" default_value="1" />
  26   <UserPref name="_dg_showRoller" display_name="Show Roller" required="false" default_value="false" datatype="bool" />
  27   <UserPref name="_dg_minY" display_name="Min Y Value" required="false" default_value="" />
  28   <UserPref name="_dg_maxY" display_name="Max Y Value" required="false" default_value="" />
  29   <UserPref name="_dg_kmb" display_name="KMB labels" required="false" default_value="false" datatype="bool" />
  30   <UserPref name="_dg_errorbars" display_name="Error Bars" required="false" default_value="false" datatype="bool" />
  31   <UserPref name="_dg_fillGraph" display_name="Fill Chart" required="false" default_value="false" datatype="bool" />
  32   <!--
  33   This is a sample gadget, that uses the Google Visualization API to read data
  34   from a data source, and displays it as an html table.
  35   -->
  36
  37   <Content type="html"><![CDATA[
  38
  39   <!-- Load the Google common loader, that is later used to load the Visualization API. -->
  40   <script src="http://www.google.com/jsapi" type="text/javascript"></script>
  41   <script src="http://dygraphs.com/dygraph-combined.js" type="text/javascript"></script>
  42
  43   <div id="chartdiv" style="overflow: auto;"><img src="http://www.google.com/ig/images/spinner.gif" /></div>
  44
  45   <script>
  46     var gadgetHelper = null;
  47     var table = null;
  48
  49     _IG_RegisterOnloadHandler(loadVisualizationAPI);
  50
  51     /**
  52      * Load the Google Visualization API
  53      */
  54     function loadVisualizationAPI() {
  55       google.load("visualization", "1");
  56       google.setOnLoadCallback(sendQuery);
  57     }
  58
  59     /**
  60      * Create a query from the user prefs, and then send it to the data source.
  61      * This method is called once the visualization API is fully loaded.
  62      * Note that in the last line, a callback function is specified to be
  63      * called once the response is received from the data source.
  64      */
  65     function sendQuery() {
  66       var prefs = new _IG_Prefs(); // User preferences
  67       var chartDiv = _gel('chartdiv');
  68       chartDiv.style.width = document.body.clientWidth + 'px';
  69       chartDiv.style.height = document.body.clientHeight + 'px';
  70       chart = new DateGraph.GVizChart(chartDiv);
  71
  72       gadgetHelper = new google.visualization.GadgetHelper();
  73       var query = gadgetHelper.createQueryFromPrefs(prefs);
  74       query.send(handleQueryResponse);
  75     }
  76
  77     /**
  78      * Query response handler function.
  79      * Called by the Google Visualization API once the response is received.
  80      * Takes the query response and formats it as a table.
  81      */
  82     function handleQueryResponse(response) {
  83       // Use the visualization GadgetHelper class to validate the data, and
  84       // for error handling.
  85       if (!gadgetHelper.validateResponse(response)) {
  86         // Default error handling was done, just leave.
  87         return;
  88       };
  89       var data = response.getDataTable();
  90
  91       // Take the data table from the response, and format it.
  92       // var options = {showRowNumber: true};
  93       var prefs = new _IG_Prefs(); // User preferences
  94       var showRoller = prefs.getBool("_dg_showRoller");
  95       var rollPeriod = prefs.getInt("_dg_rollPeriod");
  96       var labelsKMB = prefs.getBool("_dg_kmb");
  97       var errorBars = prefs.getBool("_dg_errorbars");
  98       var fillGraph = prefs.getBool("_dg_fillGraph");
  99       var opts = {
 100         showRoller: showRoller,
 101         rollPeriod: rollPeriod,
 102         labelsKMB: labelsKMB,
 103         errorBars: errorBars,
 104         fillGraph: fillGraph
 105       };
 106
 107       var minY = prefs.getString("_dg_minY");
 108       var maxY = prefs.getString("_dg_maxY");
 109       if (minY && maxY) {
 110         opts.valueRange = [parseInt(minY), parseInt(maxY)];
 111       }
 112
 113       chart.draw(data, opts);
 114     };
 115
 116   </script>
 117
 118   ]]>
 119   </Content>
 120 </Module>