search Mozilla Add-ons for add-ons

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makeSearchCommand({
  name: "add-on",
  icon: "https://addons.mozilla.org/favicon.ico",
  author: {
    name: "Robert B****",
    email: "folarb@gmail.com"
  },
  description: "Searches Mozilla Add-ons for your words",
  help: "Doesn't show experimental add-ons (like ubiquity) yet. Enter (part of) the name or the description of an add-on. The first 5 results will be displayed in the preview, hit return to go to the search page",
  url: "https://addons.mozilla.org/en-US/firefox/search?q={QUERY}",
  preview: function(pBlock, directObject) {

    if (!directObject.text || directObject.text.length < 1) {
      pBlock.innerHTML = "Search Mozilla Add-ons";
      return;
    }

    if (/^\d+$/.test(directObject.summary)) {
      var url = "https://services.addons.mozilla.org/en-US/firefox/api/1.1/addon/" + directObject.text;
      var searchType = 'lookup';
    }
    else {
      var url = "https://services.addons.mozilla.org/en-US/firefox/api/1.1/search/" + directObject.text;
      var searchType = 'search';
    }

    jQuery.ajax({
      type: "GET",
      url: url,
      dataType: "xml",
      error: function() {
        pBlock.innerHTML = "Error: can't connect to server";
      },
      success: function(responseData) {
        responseData = jQuery(responseData);
        var items = [];

        responseData.find("addon").slice(0, 5).each(function(itemIndex) {
          var itemDetails = jQuery(this);

          var newItem = {
            name: itemDetails.find("name:first").text(),
            url: itemDetails.find("learnmore").text()
          };

          if (itemDetails.find("summary").length > 0) {
            newItem.summary = itemDetails.find("summary").text();
          }

          if (itemDetails.find("thumbnail").length > 0) {
            newItem.image = itemDetails.find("thumbnail:first").text();
          }

          items.push(newItem);
        });

        var pData = {
          searchType: searchType,
          query: directObject.summary,
          totalresults: responseData.find("searchresults").attr("total_results"),
          items: items,
          numitems: (searchType == "lookup" && items[0].name == "") ? 0 : items.length
        };
 
        var template = '';
        template += '{if searchType == "lookup"}';
        template += '{if numitems > 0}';
        template += 'Add-on <b>${query}</b> is shown below.';
        template += '{else}';
        template += '<b>Your search--did not match any add-on.</b>';
        template += '{/if}';
        template += '{else}';
        template += '{if numitems > 0}';
        template += 'Found <a href="https://addons.mozilla.org/en-US/firefox/search?q=${query}">${totalresults} add-ons</a> on Mozilla Add-ons matching <b>${query}</b>.';
        template += '{else}';
        template += '<b>Your search--did not match any add-on.</b>';
        template += '{/if}';
        template += '{/if}';

        template += '{if numitems > 0}';
        template += '{for item in items}';
        template += '<div style="clear: both; padding: 10px 0px; max-height: 120px;">';
        template += '<a href="${item.url}">';
        template += '{if item.image}';
        template += '<img src="${item.image}" style="float: left; margin-right: 10px; max-height: 100px; max-width: 100px;"/>';
        template += '{/if}';

        template += '<u>${item.name}</u>';
        template += '</a>';

        template += '<small>';
        template += '{if item.summary}';
        template += '{if item.summary.length < 230}';
        template += '<br />${item.summary}';
        template += '{else}';
        template += '<br />${item.summary.substr(0, 230)}' + '..';
        template += '{/if}';
        template += '{/if}';
        template += '</small>';
        template += '</div>';
        template += '{/for}';
        template += '{/if}';
        template += '<br /> ';

        pBlock.innerHTML = CmdUtils.renderTemplate(template, pData);
        return;
      }
    });
  }
});