/** vim: et:ts=4:sw=4:sts=4

 */

//Not using strict: uneven strict support in browsers, #392, and causes

//problems with requirejs.exec()/transpiler plugins that may not be strict.

/*jslint regexp: true, nomen: true, sloppy: true */

/*global window, navigator, document, importScripts, setTimeout, opera */

var requirejs, require, define;

(function (global) {

    var req, s, head, baseElement, dataMain, src,

        interactiveScript, currentlyAddingScript, mainScript, subPath,

        commentRegExp = /(\/\*([\s\S]*?)\*\/|([^:]|^)\/\/(.*)$)/mg,

        cjsRequireRegExp = /[^.]\s*require\s*\(\s*["']([^'"\s]+)["']\s*\)/g,

        jsSuffixRegExp = /\.js$/,

        currDirRegExp = /^\.\//,

        op = Object.prototype,

        ostring = op.toString,

        hasOwn = op.hasOwnProperty,

        isBrowser = !!(typeof window !== 'undefined' && typeof navigator !== 'undefined' && window.document),

        isWebWorker = !isBrowser && typeof importScripts !== 'undefined',

        //PS3 indicates loaded and complete, but need to wait for complete

        //specifically. Sequence is 'loading', 'loaded', execution,

        // then 'complete'. The UA check is unfortunate, but not sure how

        //to feature test w/o causing perf issues.

        readyRegExp = isBrowser && navigator.platform === 'PLAYSTATION 3' ?

                      /^complete$/ : /^(complete|loaded)$/,

        defContextName = '_',

        //Oh the tragedy, detecting opera. See the usage of isOpera for reason.

        isOpera = typeof opera !== 'undefined' && opera.toString() === '[object Opera]',

        contexts = {},

        cfg = {},

        globalDefQueue = [],

        useInteractive = false;

    function isFunction(it) {

        return ostring.call(it) === '[object Function]';

    }

    function isArray(it) {

        return ostring.call(it) === '[object Array]';

    }

    /**

     * Helper function for iterating over an array. If the func returns

     * a true value, it will break out of the loop.

     */

    function each(ary, func) {

        if (ary) {

            var i;

            for (i = 0; i < ary.length; i += 1) {

                if (ary[i] && func(ary[i], i, ary)) {

                    break;

                }

            }

        }

    }

    /**

     * Helper function for iterating over an array backwards. If the func

     * returns a true value, it will break out of the loop.

     */

    function eachReverse(ary, func) {

        if (ary) {

            var i;

            for (i = ary.length - 1; i > -1; i -= 1) {

                if (ary[i] && func(ary[i], i, ary)) {

                    break;

                }

            }

        }

    }

    function hasProp(obj, prop) {

        return hasOwn.call(obj, prop);

    }

    function getOwn(obj, prop) {

        return hasProp(obj, prop) && obj[prop];

    }

    /**

     * Cycles over properties in an object and calls a function for each

     * property value. If the function returns a truthy value, then the

     * iteration is stopped.

     */

    function eachProp(obj, func) {

        var prop;

        for (prop in obj) {

            if (hasProp(obj, prop)) {

                if (func(obj[prop], prop)) {

                    break;

                }

            }

        }

    }

    /**

     * Simple function to mix in properties from source into target,

     * but only if target does not already have a property of the same name.

     */

    function mixin(target, source, force, deepStringMixin) {

        if (source) {

            eachProp(source, function (value, prop) {

                if (force || !hasProp(target, prop)) {

                    if (deepStringMixin && typeof value === 'object' && value &&

                        !isArray(value) && !isFunction(value) &&

                        !(value instanceof RegExp)) {

                        if (!target[prop]) {

                            target[prop] = {};

                        }

                        mixin(target[prop], value, force, deepStringMixin);

                    } else {

                        target[prop] = value;

                    }

                }

            });

        }

        return target;

    }

    //Similar to Function.prototype.bind, but the 'this' object is specified

    //first, since it is easier to read/figure out what 'this' will be.

    function bind(obj, fn) {

        return function () {

            return fn.apply(obj, arguments);

        };

    }

    function scripts() {

        return document.getElementsByTagName('script');

    }

    function defaultOnError(err) {

        throw err;

    }

    //Allow getting a global that is expressed in

    //dot notation, like 'a.b.c'.

    function getGlobal(value) {

        if (!value) {

            return value;

        }

        var g = global;

        each(value.split('.'), function (part) {

            g = g[part];

        });

        return g;

    }

    /**

     * Constructs an error with a pointer to an URL with more information.

     * @param {String} id the error ID that maps to an ID on a web page.

     * @param {String} message human readable error.

     * @param {Error} [err] the original error, if there is one.

     *

     * @returns {Error}

     */

    function makeError(id, msg, err, requireModules) {

        var e = new Error(msg + '\nhttp://requirejs.org/docs/errors.html#' + id);

        e.requireType = id;

        e.requireModules = requireModules;

        if (err) {

            e.originalError = err;

        }

        return e;

    }

    if (typeof define !== 'undefined') {

        //If a define is already in play via another AMD loader,

        //do not overwrite.

        return;

    }

    if (typeof requirejs !== 'undefined') {

        if (isFunction(requirejs)) {

            //Do not overwrite an existing requirejs instance.

            return;

        }

        cfg = requirejs;

        requirejs = undefined;

    }

    //Allow for a require config object

    if (typeof require !== 'undefined' && !isFunction(require)) {

        //assume it is a config object.

        cfg = require;

        require = undefined;

    }

    function newContext(contextName) {

        var inCheckLoaded, Module, context, handlers,

            checkLoadedTimeoutId,

            config = {

                //Defaults. Do not set a default for map

                //config to speed up normalize(), which

                //will run faster if there is no default.

                waitSeconds: 7,

                baseUrl: './',

                paths: {},

                bundles: {},

                pkgs: {},

                shim: {},

                config: {}

            },

            registry = {},

            //registry of just enabled modules, to speed

            //cycle breaking code when lots of modules

            //are registered, but not activated.

            enabledRegistry = {},

            undefEvents = {},

            defQueue = [],

            defined = {},

            urlFetched = {},

            bundlesMap = {},

            requireCounter = 1,

            unnormalizedCounter = 1;

        /**

         * Trims the . and .. from an array of path segments.

         * It will keep a leading path segment if a .. will become

         * the first path segment, to help with module name lookups,

         * which act like paths, but can be remapped. But the end result,

         * all paths that use this function should look normalized.

         * NOTE: this method MODIFIES the input array.

         * @param {Array} ary the array of path segments.

         */

        function trimDots(ary) {

            var i, part;

            for (i = 0; i < ary.length; i++) {

                part = ary[i];

                if (part === '.') {

                    ary.splice(i, 1);

                    i -= 1;

                } else if (part === '..') {

                    // If at the start, or previous value is still ..,

                    // keep them so that when converted to a path it may

                    // still work when converted to a path, even though

                    // as an ID it is less than ideal. In larger point

                    // releases, may be better to just kick out an error.

                    if (i === 0 || (i === 1 && ary[2] === '..') || ary[i - 1] === '..') {

                        continue;

                    } else if (i > 0) {

                        ary.splice(i - 1, 2);

                        i -= 2;

                    }

                }

            }

        }

        /**

         * Given a relative module name, like ./something, normalize it to

         * a real name that can be mapped to a path.

         * @param {String} name the relative name

         * @param {String} baseName a real name that the name arg is relative

         * to.

         * @param {Boolean} applyMap apply the map config to the value. Should

         * only be done if this normalization is for a dependency ID.

         * @returns {String} normalized name

         */

        function normalize(name, baseName, applyMap) {

            var pkgMain, mapValue, nameParts, i, j, nameSegment, lastIndex,

                foundMap, foundI, foundStarMap, starI, normalizedBaseParts,

                baseParts = (baseName && baseName.split('/')),

                map = config.map,

                starMap = map && map['*'];

            //Adjust any relative paths.

            if (name) {

                name = name.split('/');

                lastIndex = name.length - 1;

                // If wanting node ID compatibility, strip .js from end

                // of IDs. Have to do this here, and not in nameToUrl

                // because node allows either .js or non .js to map

                // to same file.

                if (config.nodeIdCompat && jsSuffixRegExp.test(name[lastIndex])) {

                    name[lastIndex] = name[lastIndex].replace(jsSuffixRegExp, '');

                }

                // Starts with a '.' so need the baseName

                if (name[0].charAt(0) === '.' && baseParts) {

                    //Convert baseName to array, and lop off the last part,

                    //so that . matches that 'directory' and not name of the baseName's

                    //module. For instance, baseName of 'one/two/three', maps to

                    //'one/two/three.js', but we want the directory, 'one/two' for

                    //this normalization.

                    normalizedBaseParts = baseParts.slice(0, baseParts.length - 1);

                    name = normalizedBaseParts.concat(name);

                }

                trimDots(name);

                name = name.join('/');

            }

            //Apply map config if available.

            if (applyMap && map && (baseParts || starMap)) {

                nameParts = name.split('/');

                outerLoop: for (i = nameParts.length; i > 0; i -= 1) {

                    nameSegment = nameParts.slice(0, i).join('/');

                    if (baseParts) {

                        //Find the longest baseName segment match in the config.

                        //So, do joins on the biggest to smallest lengths of baseParts.

                        for (j = baseParts.length; j > 0; j -= 1) {

                            mapValue = getOwn(map, baseParts.slice(0, j).join('/'));

                            //baseName segment has config, find if it has one for

                            //this name.

                            if (mapValue) {

                                mapValue = getOwn(mapValue, nameSegment);

                                if (mapValue) {

                                    //Match, update name to the new value.

                                    foundMap = mapValue;

                                    foundI = i;

                                    break outerLoop;

                                }

                            }

                        }

                    }

                    //Check for a star map match, but just hold on to it,

                    //if there is a shorter segment match later in a matching

                    //config, then favor over this star map.

                    if (!foundStarMap && starMap && getOwn(starMap, nameSegment)) {

                        foundStarMap = getOwn(starMap, nameSegment);

                        starI = i;

                    }

                }

                if (!foundMap && foundStarMap) {

                    foundMap = foundStarMap;

                    foundI = starI;

                }

                if (foundMap) {

                    nameParts.splice(0, foundI, foundMap);

                    name = nameParts.join('/');

                }

            }

            // If the name points to a package's name, use

            // the package main instead.

            pkgMain = getOwn(config.pkgs, name);

            return pkgMain ? pkgMain : name;

        }

        function removeScript(name) {

            if (isBrowser) {

                each(scripts(), function (scriptNode) {

                    if (scriptNode.getAttribute('data-requiremodule') === name &&

                            scriptNode.getAttribute('data-requirecontext') === context.contextName) {

                        scriptNode.parentNode.removeChild(scriptNode);

                        return true;

                    }

                });

            }

        }

        function hasPathFallback(id) {

            var pathConfig = getOwn(config.paths, id);

            if (pathConfig && isArray(pathConfig) && pathConfig.length > 1) {

                //Pop off the first array value, since it failed, and

                //retry