/*!
 * jQuery UI Core - v1.10.4
 * http://jqueryui.com
 *
 * Copyright 2014 jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 *
 * http://api.jqueryui.com/category/ui-core/
 */
define([
    'jquery'
], function ($, undefined) {

    var uuid = 0,
        runiqueId = /^ui-id-\d+$/;

// $.ui might exist from components with no dependencies, e.g., $.ui.position
    $.ui = $.ui || {};

    $.extend($.ui, {
        version: "1.10.4",

        keyCode: {
            BACKSPACE: 8,
            COMMA: 188,
            DELETE: 46,
            DOWN: 40,
            END: 35,
            ENTER: 13,
            ESCAPE: 27,
            HOME: 36,
            LEFT: 37,
            NUMPAD_ADD: 107,
            NUMPAD_DECIMAL: 110,
            NUMPAD_DIVIDE: 111,
            NUMPAD_ENTER: 108,
            NUMPAD_MULTIPLY: 106,
            NUMPAD_SUBTRACT: 109,
            PAGE_DOWN: 34,
            PAGE_UP: 33,
            PERIOD: 190,
            RIGHT: 39,
            SPACE: 32,
            TAB: 9,
            UP: 38
        }
    });

// plugins
    $.fn.extend({
        focus: (function (orig) {
            return function (delay, fn) {
                return typeof delay === "number" ?
                    this.each(function () {
                        var elem = this;
                        setTimeout(function () {
                            $(elem).focus();
                            if (fn) {
                                fn.call(elem);
                            }
                        }, delay);
                    }) :
                    orig.apply(this, arguments);
            };
        })($.fn.focus),

        scrollParent: function () {
            var scrollParent;
            if (($.ui.ie && (/(static|relative)/).test(this.css("position"))) || (/absolute/).test(this.css("position"))) {
                scrollParent = this.parents().filter(function () {
                    return (/(relative|absolute|fixed)/).test($.css(this, "position")) && (/(auto|scroll)/).test($.css(this, "overflow") + $.css(this, "overflow-y") + $.css(this, "overflow-x"));
                }).eq(0);
            } else {
                scrollParent = this.parents().filter(function () {
                    return (/(auto|scroll)/).test($.css(this, "overflow") + $.css(this, "overflow-y") + $.css(this, "overflow-x"));
                }).eq(0);
            }

            return (/fixed/).test(this.css("position")) || !scrollParent.length ? $(document) : scrollParent;
        },

        zIndex: function (zIndex) {
            if (zIndex !== undefined) {
                return this.css("zIndex", zIndex);
            }

            if (this.length) {
                var elem = $(this[0]), position, value;
                while (elem.length && elem[0] !== document) {
                    // Ignore z-index if position is set to a value where z-index is ignored by the browser
                    // This makes behavior of this function consistent across browsers
                    // WebKit always returns auto if the element is positioned
                    position = elem.css("position");
                    if (position === "absolute" || position === "relative" || position === "fixed") {
                        // IE returns 0 when zIndex is not specified
                        // other browsers return a string
                        // we ignore the case of nested elements with an explicit value of 0
                        // <div style="z-index: -10;"><div style="z-index: 0;"></div></div>
                        value = parseInt(elem.css("zIndex"), 10);
                        if (!isNaN(value) && value !== 0) {
                            return value;
                        }
                    }
                    elem = elem.parent();
                }
            }

            return 0;
        },

        uniqueId: function () {
            return this.each(function () {
                if (!this.id) {
                    this.id = "ui-id-" + (++uuid);
                }
            });
        },

        removeUniqueId: function () {
            return this.each(function () {
                if (runiqueId.test(this.id)) {
                    $(this).removeAttr("id");
                }
            });
        }
    });

// selectors
    function focusable(element, isTabIndexNotNaN) {
        var map, mapName, img,
            nodeName = element.nodeName.toLowerCase();
        if ("area" === nodeName) {
            map = element.parentNode;
            mapName = map.name;
            if (!element.href || !mapName || map.nodeName.toLowerCase() !== "map") {
                return false;
            }
            img = $("img[usemap=#" + mapName + "]")[0];
            return !!img && visible(img);
        }
        return (/input|select|textarea|button|object/.test(nodeName) ?
            !element.disabled :
            "a" === nodeName ?
                element.href || isTabIndexNotNaN :
                isTabIndexNotNaN) &&
            // the element and all of its ancestors must be visible
            visible(element);
    }

    function visible(element) {
        return $.expr.filters.visible(element) &&
            !$(element).parents().addBack().filter(function () {
                return $.css(this, "visibility") === "hidden";
            }).length;
    }

    $.extend($.expr[":"], {
        data: $.expr.createPseudo ?
            $.expr.createPseudo(function (dataName) {
                return function (elem) {
                    return !!$.data(elem, dataName);
                };
            }) :
            // support: jQuery <1.8
            function (elem, i, match) {
                return !!$.data(elem, match[3]);
            },

        focusable: function (element) {
            return focusable(element, !isNaN($.attr(element, "tabindex")));
        },

        tabbable: function (element) {
            var tabIndex = $.attr(element, "tabindex"),
                isTabIndexNaN = isNaN(tabIndex);
            return (isTabIndexNaN || tabIndex >= 0) && focusable(element, !isTabIndexNaN);
        }
    });

// support: jQuery <1.8
    if (!$("<a>").outerWidth(1).jquery) {
        $.each(["Width", "Height"], function (i, name) {
            var side = name === "Width" ? ["Left", "Right"] : ["Top", "Bottom"],
                type = name.toLowerCase(),
                orig = {
                    innerWidth: $.fn.innerWidth,
                    innerHeight: $.fn.innerHeight,
                    outerWidth: $.fn.outerWidth,
                    outerHeight: $.fn.outerHeight
                };

            function reduce(elem, size, border, margin) {
                $.each(side, function () {
                    size -= parseFloat($.css(elem, "padding" + this)) || 0;
                    if (border) {
                        size -= parseFloat($.css(elem, "border" + this + "Width")) || 0;
                    }
                    if (margin) {
                        size -= parseFloat($.css(elem, "margin" + this)) || 0;
                    }
                });
                return size;
            }

            $.fn["inner" + name] = function (size) {
                if (size === undefined) {
                    return orig["inner" + name].call(this);
                }

                return this.each(function () {
                    $(this).css(type, reduce(this, size) + "px");
                });
            };

            $.fn["outer" + name] = function (size, margin) {
                if (typeof size !== "number") {
                    return orig["outer" + name].call(this, size);
                }

                return this.each(function () {
                    $(this).css(type, reduce(this, size, true, margin) + "px");
                });
            };
        });
    }

// support: jQuery <1.8
    if (!$.fn.addBack) {
        $.fn.addBack = function (selector) {
            return this.add(selector == null ?
                this.prevObject : this.prevObject.filter(selector)
            );
        };
    }

// support: jQuery 1.6.1, 1.6.2 (http://bugs.jquery.com/ticket/9413)
    if ($("<a>").data("a-b", "a").removeData("a-b").data("a-b")) {
        $.fn.removeData = (function (removeData) {
            return function (key) {
                if (arguments.length) {
                    return removeData.call(this, $.camelCase(key));
                } else {
                    return removeData.call(this);
                }
            };
        })($.fn.removeData);
    }


// deprecated
    $.ui.ie = !!/msie [\w.]+/.exec(navigator.userAgent.toLowerCase());

    $.support.selectstart = "onselectstart" in document.createElement("div");
    $.fn.extend({
        disableSelection: function () {
            return this.bind(($.support.selectstart ? "selectstart" : "mousedown") +
                ".ui-disableSelection", function (event) {
                event.preventDefault();
            });
        },

        enableSelection: function () {
            return this.unbind(".ui-disableSelection");
        }
    });

    $.extend($.ui, {
        // $.ui.plugin is deprecated. Use $.widget() extensions instead.
        plugin: {
            add: function (module, option, set) {
                var i,
                    proto = $.ui[module].prototype;
                for (i in set) {
                    proto.plugins[i] = proto.plugins[i] || [];
                    proto.plugins[i].push([option, set[i]]);
                }
            },
            call: function (instance, name, args) {
                var i,
                    set = instance.plugins[name];
                if (!set || !instance.element[0].parentNode || instance.element[0].parentNode.nodeType === 11) {
                    return;
                }

                for (i = 0; i < set.length; i++) {
                    if (instance.options[set[i][0]]) {
                        set[i][1].apply(instance.element, args);
                    }
                }
            }
        },

        // only used by resizable
        hasScroll: function (el, a) {

            //If overflow is hidden, the element might have extra content, but the user wants to hide it
            if ($(el).css("overflow") === "hidden") {
                return false;
            }

            var scroll = (a && a === "left") ? "scrollLeft" : "scrollTop",
                has = false;

            if (el[scroll] > 0) {
                return true;
            }

            // TODO: determine which cases actually cause this to happen
            // if the element doesn't have the scroll set, see if it's possible to
            // set the scroll
            el[scroll] = 1;
            has = (el[scroll] > 0);
            el[scroll] = 0;
            return has;
        }
    });

});