Ubiquity Charts

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var noun_type_chart = {
    _name: "Chart Type",
    
    chartTypes: [
        "pie",
        "pie3d",
        "barh"
        ],

    _chart : {
        pie: 'p',
        pie3d : 'p3',
        barh : 'bhs',
    },
    
    chartType: function(text){
        var thisType = noun_type_chart._chart[text];
        if(thisType){
            return thisType;
        } else {
            return noun_type_chart._chart.pie3d;
        }
    },
        
    suggest: function(text, html ) {
        
        var suggestions  = [];
        var chartTypes = noun_type_chart.chartTypes;

        //TODO: implement a better match algorithm
        for ( var n in noun_type_chart.chartTypes ) {
            var thisType = noun_type_chart.chartTypes[n];
            if (thisType.match(text, "i")){                
                suggestions.push( CmdUtils.makeSugg(thisType) );
            }
        }

        // Return a list of input objects, limited to at most five:
        return suggestions.splice(0, 5);

    }
};


CmdUtils.CreateCommand({
  name: "chart",
  takes: {"type": noun_type_chart},
  icon: "chrome://ubiquity/content/icons/calculator.png",
  description: "Makes a pie chart out of two columns of data.",
  help: "",
  homepage: "http://earth2marsh.com/ubiquity/",
  author: {name: "Marsh Gardiner", email: "ubiquity@earth2marsh.com"},
  license: "MPL",
  
    _cleanData: function( string ) {
    string = string.replace(/\r\n/g," ")
    var dirtyData = string.split(/\W/);
    var labels = "&chl=";
    var values = "&chd=t:";
    for(var i=0; i<dirtyData.length; i++){
      var datum = dirtyData[i];
      if( i % 2 == 0 ){
        labels += datum;
        if (i<dirtyData.length-2) {
          labels += "|";
        }
      }
      else {
        values += parseFloat( datum );
        if (i<dirtyData.length-2) {
          values += ",";
        }
      }
    var data = labels + values;
    }
    return data;
  },
 
  _dataToPieChart: function( string, type ) {
    var data = this._cleanData( string );
    if( data.length < 2 ) return null;
    var img = "<img src='http://chart.apis.google.com/chart?cht=%type%&chs=300x150%data%'/>";
    img = img.replace(/%type%/, type);
    img = img.replace(/%data%/, data);
    return img;
  },
  
  
 
  preview: function(pblock, type) {

    var data = CmdUtils.getSelection();
    var text = type.text;
    Utils.reportInfo('Type: ' + text);
    var chart_type = noun_type_chart.chartType(type.text);
    Utils.reportInfo('Chart Type: ' + chart_type);
    var img = this._dataToPieChart( data , chart_type );
    if( !img )
      jQuery(pblock).text( "Requires numbers to graph." );
    else
      jQuery(pblock).empty().append( img ).height( "15px" );
  },
 
  execute: function( input, mods ) {

    var data = CmdUtils.getSelection();
    var chart_type = noun_type_chart.chartType(type.text);
    
    var img = this._dataToPieChart( data , chart_type );
    if( img ) CmdUtils.setSelection( img );
  }
});