!function(t){"use strict";function e(){var e=this;e.reads=[],e.writes=[],e.raf=u.bind(t)}function n(t){t.scheduled||(t.scheduled=!0,t.raf(i.bind(null,t)))}function i(t){var e,i=t.writes,o=t.reads;try{o.length,r(o),i.length,r(i)}catch(t){e=t}if(t.scheduled=!1,(o.length||i.length)&&n(t),e){if(e.message,!t.catch)throw e;t.catch(e)}}function r(t){for(var e;e=t.shift();)e()}function o(t,e){var n=t.indexOf(e);return!!~n&&!!t.splice(n,1)}function s(t,e){for(var n in e)e.hasOwnProperty(n)&&(t[n]=e[n])}var u=t.requestAnimationFrame||t.webkitRequestAnimationFrame||t.mozRequestAnimationFrame||t.msRequestAnimationFrame||function(t){return setTimeout(t,16)};e.prototype={constructor:e,measure:function(t,e){var i=e?t.bind(e):t;return this.reads.push(i),n(this),i},mutate:function(t,e){var i=e?t.bind(e):t;return this.writes.push(i),n(this),i},clear:function(t){return o(this.reads,t)||o(this.writes,t)},extend:function(t){if("object"!=typeof t)throw new Error("expected object");var e=Object.create(this);return s(e,t),e.fastdom=this,e.initialize&&e.initialize(),e},catch:null};var exports=t.fastdom=t.fastdom||new e;"function"==typeof define?define(function(){return exports}):"object"==typeof module&&(module.exports=exports)}("undefined"!=typeof window?window:this);


!(function() {

    /**
     * Wraps fastdom in a Promise API
     * for improved control-flow.
     *
     * @example
     *
     * // returning a result
     * fastdom.measure(() => el.clientWidth)
     *   .then(result => ...);
     *
     * // returning promises from tasks
     * fastdom.measure(() => {
     *   var w = el1.clientWidth;
     *   return fastdom.mutate(() => el2.style.width = w + 'px');
     * }).then(() => console.log('all done'));
     *
     * // clearing pending tasks
     * var promise = fastdom.measure(...)
     * fastdom.clear(promise);
     *
     * @type {Object}
     */
    var exports = {
        initialize: function() {
            this._tasks = new Map();
        },

        mutate: function(fn, ctx) {
            return create(this, 'mutate', fn, ctx);
        },

        measure: function(fn, ctx) {
            return create(this, 'measure', fn, ctx);
        },

        clear: function(promise) {
            var tasks = this._tasks;
            var task = tasks.get(promise);
            this.fastdom.clear(task);
            tasks.delete(promise);
        }
    };

    /**
     * Create a fastdom task wrapped in
     * a 'cancellable' Promise.
     *
     * @param  {FastDom}  fastdom
     * @param  {String}   type - 'measure'|'muatate'
     * @param  {Function} fn
     * @return {Promise}
     */
    function create(promised, type, fn, ctx) {
        var tasks = promised._tasks;
        var fastdom = promised.fastdom;
        var task;

        var promise = new Promise(function(resolve, reject) {
            task = fastdom[type](function() {
                tasks.delete(promise);
                try { resolve(ctx ? fn.call(ctx) : fn()); }
                catch (e) { reject(e); }
            }, ctx);
        });

        tasks.set(promise, task);
        return promise;
    }

// Expose to CJS, AMD or global
    if ((typeof define)[0] == 'f') define(function() { return exports; });
    else if ((typeof module)[0] == 'o') module.exports = exports;
    else window.fastdomPromised = exports;

})();

fastdom = fastdom.extend(fastdomPromised);