cssjs/lib/cssjs.runtime.js

incubating

// Generated by CoffeeScript 1.8.0
(function() {
  var computations, normalize, process, processAll,
    __indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };

  computations = [];

  window.cssjsProperty = function(selectors, property, fn) {
    var global;
    global = __indexOf.call(fn, "this") < 0;
    if (typeof fn === "string") {
      fn = fn.replace(/\s*;\s*$/, '');
      if (/^\s*return\s/.test(fn)) {
        fn = "function(){ " + fn + " }";
      }
      fn = eval('(' + fn + ')');
    }
    return computations.push({
      selectors: selectors,
      property: property,
      global: global,
      fn: fn
    });
  };

  normalize = function(value) {
    if (typeof value === 'number') {
      return value + "px";
    } else if (!value) {
      return null;
    } else {
      return value;
    }
  };

  process = function(computation) {
    var $elements, value;
    $elements = $(computation.selectors.join(", "));
    if (computation.global) {
      value = normalize(computation.fn());
      return $elements.css(computation.property, value);
    } else {
      return $elements.each(function() {
        value = normalize(computation.fn.call(this));
        return $(this).css(computation.property, value);
      });
    }
  };

  processAll = function() {
    var computation, _i, _len, _results;
    _results = [];
    for (_i = 0, _len = computations.length; _i < _len; _i++) {
      computation = computations[_i];
      _results.push(process(computation));
    }
    return _results;
  };

  $(window).resize(processAll);

  $(window).scroll(processAll);

  $(document).ready(processAll);

}).call(this);