apeg_bookmarklet.js

(function() {
var params;

function eventFire(el, etype){
  if (el.fireEvent) {
    el.fireEvent('on' + etype);
  } else {
    var evObj = document.createEvent('Events');
    evObj.initEvent(etype, true, false);
    el.dispatchEvent(evObj);
  }
}

function init() {
  var url = 'https://my.url.to.my.params/params.php';

  new Ajax.Request(url, {
    onSuccess: function(res) {
        params = res.responseJSON;
        main();
     }
  });
}

function main() {
var bc_el = null, to = null;

bc_el = document.getElementById("bcMenu_actionButton");

if(bc_el)
    eventFire(bc_el, "mouseover");

bc_el = document.getElementById("content-handler-resource/x-bb-externallink");

if(bc_el)
  bc_el.click();

bc_el = document.getElementById("user_title");

if(bc_el)
    bc_el.setAttribute("value", params.general.name);


var lti_el = document.getElementById("bltiToolProvider");

if(lti_el) {
      var url_el = document.getElementById("url");
      var p = document.getElementById("apeg_select");

      if(!p) {
        p = document.createElement("p");
        p.id = "apeg_select";
      }

      var button = document.getElementById("apeg_button");

      if(!button) {
        button = document.createElement("button");
        button.id = "apeg_button";
        button.setAttribute("style", "margin-left: 0.3em; width: 80px; height: 35px");
        button.textContent = "Change Setup";
      }

      var select = document.createElement("select");
      var option = [];

      params.options.forEach(function(v, i) {
          option[i] = document.createElement("option");
          option[i].textContent = v.title;
          option[i].data = v;
      });

      option[0].defaultSelected = true;

      option.forEach(function(v,i) {
          select.appendChild(v);
      });

      p.textContent = "APEG Setup Type: ";
      p.appendChild(select);
      p.appendChild(button);

      document.getElementById("pageTitleDiv").appendChild(p);

      var fillFields = function() {
        var o = select.options[select.selectedIndex];

        url_el.setAttribute("value", o.data.url);

        if(!lti_el.checked)
            lti_el.click();

        // wait until server has returned LTI status
        var _to = null;
        var wait = function() {
            if(_to !== null) return false;

            _to = setTimeout(function() {
                  $$("#bltiKey")[0].value = o.data.key;
                  $$("#bltiSecret")[0].value = o.data.secret;
                  $$("#bltiCustomParameters")[0].value = params.general.custom_params;
                  clearTimeout(_to);
                  _to = null;
                  if($$("#bltiKey")[0].value.length == 0) {
                      wait();
                  }
            }, 100);
        };

        wait();

      };

      button.addEventListener("click", function(e) {
        var ok = confirm("This will add the "+select.options[select.selectedIndex].textContent+" template.");

          if(ok) {
              fillFields();
          }
      });

      fillFields();
}
}

init();
}());