hopglass/lib/filters/genericnode.js

define(["helper"], function (helper) {
  "use strict";

  return function (name, key, value, f) {
    var negate = false;
    var refresh;

    var label = document.createElement("label");
    var strong = document.createElement("strong");
    label.textContent = name + " ";
    label.appendChild(strong);

    function run(d) {
      var o = helper.dictGet(d, key.slice(0));

      if (f) {
        o = f(o);
      }

      return o === value ? !negate : negate;
    }

    function setRefresh(f) {
      refresh = f;
    }

    function draw(el) {
      if (negate) {
        el.parentNode.classList.add("not");
      } else {
        el.parentNode.classList.remove("not");
      }

      strong.textContent = (negate ? "¬" : "" ) + value;
    }

    function render(el) {
      el.appendChild(label);
      draw(el);

      label.onclick = function () {
        negate = !negate;

        draw(el);

        if (refresh) {
          refresh();
        }
      };
    }

    return {
      run: run,
      setRefresh: setRefresh,
      render: render
    };
  };
});