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/*
        Copyright (c) 2004-2006, The Dojo Foundation
        All Rights Reserved.

        Licensed under the Academic Free License version 2.1 or above OR the
        modified BSD license. For more information on Dojo licensing, see:

                http://dojotoolkit.org/community/licensing.shtml
*/



dojo.provide("dojo.lang.func");
dojo.require("dojo.lang.common");
dojo.lang.hitch = function (thisObject, method) {
        var args = [];
        for (var x = 2; x < arguments.length; x++) {
                args.push(arguments[x]);
        }
        var fcn = (dojo.lang.isString(method) ? thisObject[method] : method) || function () {
        };
        return function () {
                var ta = args.concat([]);
                for (var x = 0; x < arguments.length; x++) {
                        ta.push(arguments[x]);
                }
                return fcn.apply(thisObject, ta);
        };
};
dojo.lang.anonCtr = 0;
dojo.lang.anon = {};
dojo.lang.nameAnonFunc = function (anonFuncPtr, thisObj, searchForNames) {
        var nso = (thisObj || dojo.lang.anon);
        if ((searchForNames) || ((dj_global["djConfig"]) && (djConfig["slowAnonFuncLookups"] == true))) {
                for (var x in nso) {
                        try {
                                if (nso[x] === anonFuncPtr) {
                                        return x;
                                }
                        }
                        catch (e) {
                        }
                }
        }
        var ret = "__" + dojo.lang.anonCtr++;
        while (typeof nso[ret] != "undefined") {
                ret = "__" + dojo.lang.anonCtr++;
        }
        nso[ret] = anonFuncPtr;
        return ret;
};
dojo.lang.forward = function (funcName) {
        return function () {
                return this[funcName].apply(this, arguments);
        };
};
dojo.lang.curry = function (thisObj, func) {
        var outerArgs = [];
        thisObj = thisObj || dj_global;
        if (dojo.lang.isString(func)) {
                func = thisObj[func];
        }
        for (var x = 2; x < arguments.length; x++) {
                outerArgs.push(arguments[x]);
        }
        var ecount = (func["__preJoinArity"] || func.length) - outerArgs.length;
        function gather(nextArgs, innerArgs, expected) {
                var texpected = expected;
                var totalArgs = innerArgs.slice(0);
                for (var x = 0; x < nextArgs.length; x++) {
                        totalArgs.push(nextArgs[x]);
                }
                expected = expected - nextArgs.length;
                if (expected <= 0) {
                        var res = func.apply(thisObj, totalArgs);
                        expected = texpected;
                        return res;
                } else {
                        return function () {
                                return gather(arguments, totalArgs, expected);
                        };
                }
        }
        return gather([], outerArgs, ecount);
};
dojo.lang.curryArguments = function (thisObj, func, args, offset) {
        var targs = [];
        var x = offset || 0;
        for (x = offset; x < args.length; x++) {
                targs.push(args[x]);
        }
        return dojo.lang.curry.apply(dojo.lang, [thisObj, func].concat(targs));
};
dojo.lang.tryThese = function () {
        for (var x = 0; x < arguments.length; x++) {
                try {
                        if (typeof arguments[x] == "function") {
                                var ret = (arguments[x]());
                                if (ret) {
                                        return ret;
                                }
                        }
                }
                catch (e) {
                        dojo.debug(e);
                }
        }
};
dojo.lang.delayThese = function (farr, cb, delay, onend) {
        if (!farr.length) {
                if (typeof onend == "function") {
                        onend();
                }
                return;
        }
        if ((typeof delay == "undefined") && (typeof cb == "number")) {
                delay = cb;
                cb = function () {
                };
        } else {
                if (!cb) {
                        cb = function () {
                        };
                        if (!delay) {
                                delay = 0;
                        }
                }
        }
        setTimeout(function () {
                (farr.shift())();
                cb();
                dojo.lang.delayThese(farr, cb, delay, onend);
        }, delay);
};