gistfile1.txt

const WASSR_STATUS_MAXLEN = 255;

CmdUtils.CreateCommand({
  name: "wassr",
  takes: {status: noun_arb_text},
  
  homepage: "http://wassr.jp",
  author: {name: "haoyayoi", homepage: "http://d.hatena.ne.jp/hao_yayoi/"},
  license: "MPL",
  
  preview: function(previewBlock, statusText) {
    var previewTemplate = "Updates your Wassr status to: <br/>" +       
                          "<b>${status}</b><br /><br />" + 
                          "Characters remaining: <b>${chars}</b>";
    var truncateTemplate = "<br />The last <b>${truncate}</b> " + 
                           "characters will be truncated!";
    var previewData = {
      status: statusText.text,
      chars: WASSR_STATUS_MAXLEN - statusText.text.length
    };
      
    var previewHTML = CmdUtils.renderTemplate(previewTemplate,
                                                    previewData);
    
    if(previewData.chars < 0) {
      var truncateData = {
        truncate: 0 - previewData.chars
      };
      
      previewHTML += CmdUtils.renderTemplate(truncateTemplate,
                                                   truncateData);
    }
    
    previewBlock.innerHTML = previewHTML;
  },
  
  execute: function(statusText) {
    if(statusText.text.length < 1) {
      displayMessage("Wassr requires a status to be entered");
      return;
    }
    
    var updateUrl = "http://api.wassr.jp/statuses/update.json";
    var updateParams = {
      source: "ubiquity",
      status: statusText.text
    };
    
    jQuery.ajax({
      type: "POST",
      url: updateUrl,
      data: updateParams,
      dataType: "json",
      error: function() {
        displayMessage("Wassr error - status not updated");
      },
      success: function() {
        displayMessage("Wassr status updated");
      }
    });
  }
});