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    gridstack.js 0.2.3-dev\r\n//     http://troolee.github.io/gridstack.js/\r\n//     (c) 2014-2015 Pavel Reznikov\r\n//     gridstack.js may be freely distributed under the MIT license.\r\n\r\n(function (factory) {\r\n    if (typeof define === 'function' && define.amd) {\r\n        define(['jquery', 'lodash', 'jquery-ui/core', 'jquery-ui/widget', 'jquery-ui/mouse', 'jquery-ui/draggable', 'jquery-ui/resizable'], factory);\r\n    }\r\n    else {\r\n        factory(jQuery, _);\r\n    }\r\n})(function ($, _) {\r\n\r\n    var scope = window;\r\n    var Utils = {\r\n        is_intercepted: function (a, b) {\r\n            return !(a.x + a.width <= b.x || b.x + b.width <= a.x || a.y + a.height <= b.y || b.y + b.height <= a.y);\r\n        },\r\n\r\n        sort: function (nodes, dir, width) {\r\n            width = width || _.chain(nodes).map(function (node) { return node.x + node.width; }).max().value();\r\n            dir = dir != -1 ? 1 : -1;\r\n            return _.sortBy(nodes, function (n) { return dir * (n.x + n.y * width); });\r\n        },\r\n\r\n        create_stylesheet: function (id) {\r\n            var style = document.createElement(\"style\");\r\n            style.setAttribute(\"type\", \"text/css\");\r\n            style.setAttribute(\"data-gs-id\", id);\r\n            if (style.styleSheet) {\r\n                style.styleSheet.cssText = \"\";\r\n            }\r\n            else {\r\n                style.appendChild(document.createTextNode(\"\"));\r\n            }\r\n            document.getElementsByTagName('head')[0].appendChild(style);\r\n            return style.sheet;\r\n        },\r\n\r\n        insert_css_rule: function (sheet, selector, rules, index) {\r\n            if(typeof sheet.insertRule === 'function') {\r\n                sheet.insertRule(selector + \"{\" + rules + \"}\", index);\r\n            }\r\n            else if(typeof sheet.addRule === 'function') {\r\n                sheet.addRule(selector, rules, index);\r\n            }\r\n        },\r\n\r\n        toBool: function (v) {\r\n            if (typeof v == 'boolean')\r\n                return v;\r\n            if (typeof v == 'string') {\r\n                v = v.toLowerCase();\r\n                return !(v == '' || v == 'no' || v == 'false' || v == '0');\r\n            }\r\n            return Boolean(v);\r\n        }\r\n    };\r\n\r\n    var id_seq = 0;\r\n\r\n    var GridStackEngine = function (width, onchange, float, height, items, layout) {\r\n        this.width = width;\r\n        this.float = float || false;\r\n        this.height = height || 0;\r\n        this.layout = layout;\r\n\r\n        this.nodes = items || [];\r\n        this.onchange = onchange || function () {};\r\n\r\n        this._update_counter = 0;\r\n        this._float = this.float;\r\n    };\r\n\r\n    GridStackEngine.prototype.batch_update = function () {\r\n        this._update_counter = 1;\r\n        this.float = true;\r\n    };\r\n\r\n    GridStackEngine.prototype.commit = function () {\r\n        this._update_counter = 0;\r\n        if (this._update_counter == 0) {\r\n            this.float = this._float;\r\n            this._pack_nodes();\r\n            this._notify();\r\n        }\r\n    };\r\n\r\n    GridStackEngine.prototype._fix_collisions = function (node) {\r\n        this._sort_nodes(-1);\r\n\r\n        var nn = node, has_locked = Boolean(_.find(this.nodes, function (n) { return n.locked }));\r\n        if (!this.float && !has_locked) {\r\n            nn = {x: 0, y: node.y, width: this.width, height: node.height};\r\n        }\r\n\r\n        while (true) {\r\n            var collision_node = _.find(this.nodes, function (n) {\r\n                return n != node && Utils.is_intercepted(n, nn);\r\n            }, this);\r\n\r\n            if (typeof collision_node == 'undefined') {\r\n                return;\r\n            }\r\n\r\n            // If during drag, fix the actual node to go below\r\n            if (node.isDragging && (node.y > collision_node.y)) {\r\n                this.move_node(node, node.x, collision_node.y + collision_node.height, node.width, node.height, false);\r\n                return;\r\n            }\r\n\r\n            this.move_node(collision_node, collision_node.x, node.y + node.height,\r\n                collision_node.width, collision_node.height, true);\r\n        }\r\n    };\r\n\r\n    GridStackEngine.prototype.is_area_empty = function (x, y, width, height) {\r\n        var nn = {x: x || 0, y: y || 0, width: width || 1, height: height || 1};\r\n        var collision_node = _.find(this.nodes, function (n) {\r\n            return Utils.is_intercepted(n, nn);\r\n        }, this);\r\n        return collision_node == null;\r\n    };\r\n\r\n    GridStackEngine.prototype._sort_nodes = function (dir) {\r\n        this.nodes = Utils.sort(this.nodes, dir, this.width);\r\n    };\r\n\r\n    GridStackEngine.prototype._pack_nodes = function () {\r\n        this._sort_nodes();\r\n\r\n        if (this.float) {\r\n            _.forEach(this.nodes, function (n, i) {\r\n                if (n._updating || typeof n._orig_y == 'undefined' || n.y == n._orig_y)\r\n                    return;\r\n\r\n                var new_y = n.y;\r\n                while (new_y >= n._orig_y) {\r\n                    var collision_node = _.chain(this.nodes)\r\n                        .find(function (bn) {\r\n                            return n != bn && Utils.is_intercepted({x: n.x, y: new_y, width: n.width, height: n.height}, bn);\r\n                        })\r\n                        .value();\r\n\r\n                    if (!collision_node) {\r\n                        n._dirty = true;\r\n                        n.y = new_y;\r\n                    }\r\n                    --new_y;\r\n                }\r\n            }.bind(this));\r\n        }\r\n        else {\r\n            _.forEach(this.nodes, function (n, i) {\r\n                if (n.locked)\r\n                    return;\r\n                while (n.y > 0) {\r\n                    var new_y = n.y - 1;\r\n                    var can_be_moved = i == 0;\r\n\r\n                    if (i > 0) {\r\n                        var collision_node = _.chain(this.nodes)\r\n                            .take(i)\r\n                            .find(function (bn) {\r\n                                return Utils.is_intercepted({x: n.x, y: new_y, width: n.width, height: n.height}, bn);\r\n                            })\r\n                            .value();\r\n                        can_be_moved = typeof collision_node == 'undefined';\r\n                    }\r\n\r\n                    if (!can_be_moved) {\r\n                        break;\r\n                    }\r\n                    n._dirty = n.y != new_y;\r\n                    n.y = new_y;\r\n                }\r\n            }.bind(this));\r\n        }\r\n    };\r\n\r\n    GridStackEngine.prototype._prepare_node = function (node, resizing) {\r\n        node = _.defaults(node || {}, {width: 1, height: 1, x: 0, y: 0 });\r\n\r\n        node.x = parseInt('' + node.x);\r\n        node.y = parseInt('' + node.y);\r\n        node.width = parseInt('' + node.width);\r\n        node.height = parseInt('' + node.height);\r\n        node.auto_position = node.auto_position || false;\r\n        node.no_resize = node.no_resize || false;\r\n        node.no_move = node.no_move || false;\r\n\r\n        if (node.width > this.width) {\r\n            node.width = this.width;\r\n        }\r\n        else if (node.width < 1) {\r\n            node.width = 1;\r\n        }\r\n\r\n        if (node.height < 1) {\r\n            node.height = 1;\r\n        }\r\n\r\n        if (node.x < 0) {\r\n            node.x = 0;\r\n        }\r\n\r\n        if (node.x + node.width > this.width) {\r\n            if (resizing) {\r\n                node.width = this.width - node.x;\r\n            }\r\n            else {\r\n                node.x = this.width - node.width;\r\n            }\r\n        }\r\n\r\n        if (node.y < 0) {\r\n            node.y = 0;\r\n        }\r\n\r\n        return node;\r\n    };\r\n\r\n    GridStackEngine.prototype._notify = function () {\r\n        if (this._update_counter) {\r\n            return;\r\n        }\r\n        var deleted_nodes = Array.prototype.slice.call(arguments, 1).concat(this.get_dirty_nodes());\r\n        deleted_nodes = deleted_nodes.concat(this.get_dirty_nodes());\r\n        this.onchange(deleted_nodes);\r\n    };\r\n\r\n    GridStackEngine.prototype.clean_nodes = function () {\r\n        _.forEach(this.nodes, function (n) {n._dirty = false });\r\n    };\r\n\r\n    GridStackEngine.prototype.get_dirty_nodes = function () {\r\n        return _.filter(this.nodes, function (n) { return n._dirty; });\r\n    };\r\n\r\n    GridStackEngine.prototype.add_node = function(node) {\r\n        node = this._prepare_node(node);\r\n\r\n        if (typeof node.max_width != 'undefined') node.width = Math.min(node.width, node.max_width);\r\n        if (typeof node.max_height != 'undefined') node.height = Math.min(node.height, node.max_height);\r\n        if (typeof node.min_width != 'undefined') node.width = Math.max(node.width, node.min_width);\r\n        if (typeof node.min_height != 'undefined') node.height = Math.max(node.height, node.min_height);\r\n\r\n        node._id = ++id_seq;\r\n        node._dirty = true;\r\n\r\n        if (node.auto_position) {\r\n            this._sort_nodes();\r\n\r\n            if (this.layout == 'stacked') {\r\n                var x = 0, y = 0, w = this.width;\r\n                var last = _.last(this.nodes);\r\n                if (last != undefined) {\r\n                    y = last.y + last.height;\r\n                }\r\n\r\n                node.x = x;\r\n                node.y = y;\r\n                node.width = w;\r\n            } else if (this.layout == 'column') {\r\n                // No adjustment necessary\r\n            } else { // default: horizontal\r\n                for (var i = 0; ; ++i) {\r\n                    var x = i % this.width, y = Math.floor(i / this.width);\r\n                    if (x + node.width > this.width) {\r\n                        continue;\r\n                    }\r\n                    if (!_.find(this.nodes, function (n) {\r\n                        return Utils.is_intercepted({x: x, y: y, width: node.width, height: node.height}, n);\r\n                    })) {\r\n                        node.x = x;\r\n                        node.y = y;\r\n                        break;\r\n                    }\r\n                }\r\n            }\r\n        }\r\n\r\n        this.nodes.push(node);\r\n\r\n        this._fix_collisions(node);\r\n        this._pack_nodes();\r\n        this._notify();\r\n        return node;\r\n    };\r\n\r\n    GridStackEngine.prototype.remove_node = function (node) {\r\n        node._id = null;\r\n        this.nodes = _.without(this.nodes, node);\r\n        this._pack_nodes();\r\n        this._notify(node);\r\n    };\r\n\r\n    GridStackEngine.prototype.can_move_node = function (node, x, y, width, height) {\r\n        var has_locked = Boolean(_.find(this.nodes, function (n) { return n.locked }));\r\n\r\n        if (!this.height && !has_locked)\r\n            return true;\r\n\r\n        var cloned_node;\r\n        var clone = new GridStackEngine(\r\n            this.width,\r\n            null,\r\n            this.float,\r\n            0,\r\n            _.map(this.nodes, function (n) { if (n == node) { cloned_node = $.extend({}, n); return cloned_node; } return $.extend({}, n) }),\r\n            this.layout);\r\n\r\n        clone.move_node(cloned_node, x, y, width, height);\r\n\r\n        var res = true;\r\n\r\n        if (has_locked)\r\n            res &= !Boolean(_.find(clone.nodes, function (n) { return n != cloned_node && Boolean(n.locked) && Boolean(n._dirty); }));\r\n        if (this.height)\r\n            res &= clone.get_grid_height() <= this.height;\r\n\r\n        return res;\r\n    };\r\n\r\n    GridStackEngine.prototype.can_be_placed_with_respect_to_height = function (node) {\r\n        if (!this.height)\r\n            return true;\r\n\r\n        var clone = new GridStackEngine(\r\n            this.width,\r\n            null,\r\n            this.float,\r\n            0,\r\n            _.map(this.nodes, function (n) { return $.extend({}, n) }),\r\n            this.layout);\r\n        clone.add_node(node);\r\n        return clone.get_grid_height() <= this.height;\r\n    };\r\n\r\n    GridStackEngine.prototype.move_node = function (node, x, y, width, height, no_pack) {\r\n        if (typeof x != 'number') x = node.x;\r\n        if (typeof y != 'number') y = node.y;\r\n        if (typeof width != 'number') width = node.width;\r\n        if (typeof height != 'number') height = node.height;\r\n\r\n        if (typeof node.max_width != 'undefined') width = Math.min(width, node.max_width);\r\n        if (typeof node.max_height != 'undefined') height = Math.min(height, node.max_height);\r\n        if (typeof node.min_width != 'undefined') width = Math.max(width, node.min_width);\r\n        if (typeof node.min_height != 'undefined') height = Math.max(height, node.min_height);\r\n\r\n        if (node.x == x && node.y == y && node.width == width && node.height == height) {\r\n            return node;\r\n        }\r\n\r\n        var resizing = node.width != width;\r\n        node._dirty = true;\r\n\r\n        node.x = x;\r\n        node.y = y;\r\n        node.width = width;\r\n        node.height = height;\r\n\r\n        node = this._prepare_node(node, resizing);\r\n\r\n        this._fix_collisions(node);\r\n        if (!no_pack) {\r\n            this._pack_nodes();\r\n            this._notify();\r\n        }\r\n        return node;\r\n    };\r\n\r\n    GridStackEngine.prototype.move_node_nofix = function (node, x, y, width, height) {\r\n        if (typeof x != 'number') x = node.x;\r\n        if (typeof y != 'number') y = node.y;\r\n        if (typeof width != 'number') width = node.width;\r\n        if (typeof height != 'number') height = node.height;\r\n\r\n        if (typeof node.max_width != 'undefined') width = Math.min(width, node.max_width);\r\n        if (typeof node.max_height != 'undefined') height = Math.min(height, node.max_height);\r\n        if (typeof node.min_width != 'undefined') width = Math.max(width, node.min_width);\r\n        if (typeof node.min_height != 'undefined') height = Math.max(height, node.min_height);\r\n\r\n        if (node.x == x && node.y == y && node.width == width && node.height == height) {\r\n            return node;\r\n        }\r\n\r\n        var resizing = node.width != width;\r\n        node._dirty = true;\r\n\r\n        node.x = x;\r\n        node.y = y;\r\n        node.width = width;\r\n        node.height = height;\r\n\r\n        node = this._prepare_node(node, resizing);\r\n\r\n        return node;\r\n    };\r\n\r\n    GridStackEngine.prototype.get_grid_height = function () {\r\n        return _.reduce(this.nodes, function (memo, n) { return Math.max(memo, n.y + n.height); }, 0);\r\n    };\r\n\r\n    GridStackEngine.prototype.begin_update = function (node) {\r\n        _.forEach(this.nodes, function (n) {\r\n            n._orig_y = n.y;\r\n        });\r\n        node._updating = true;\r\n    };\r\n\r\n    GridStackEngine.prototype.end_update = function () {\r\n        _.forEach(this.nodes, function (n) {\r\n            n._orig_y = n.y;\r\n        });\r\n        var n = _.find(this.nodes, function (n) { return n._updating; });\r\n        if (n) {\r\n            n._updating = false;\r\n        }\r\n    };\r\n\r\n    var GridStack = function (el, opts) {\r\n        var self = this, one_column_mode;\r\n\r\n        this.container = $(el);\r\n\r\n        opts.item_class = opts.item_class || 'grid-stack-item';\r\n        var is_nested = this.container.closest('.' + opts.item_class).size() > 0;\r\n\r\n        this.opts = _.defaults(opts || {}, {\r\n            width: parseInt(this.container.attr('data-gs-width')) || 12,\r\n            height: parseInt(this.container.attr('data-gs-height')) || 0,\r\n            item_class: 'grid-stack-item',\r\n            placeholder_class: 'grid-stack-placeholder',\r\n            handle: '.grid-stack-item-handle',\r\n            cell_height: 60,\r\n            vertical_margin: 20,\r\n            auto: true,\r\n            min_width: 768,\r\n            float: false,\r\n            layout: 'interactive', // horizontal, stacked\r\n            _class: 'grid-stack-' + (parseInt(this.container.attr('data-gs-width')) || 12).toFixed(0),\r\n            animate: Boolean(this.container.attr('data-gs-animate')) || false,\r\n            always_show_resize_handle: opts.always_show_resize_handle || false,\r\n            resizable: _.defaults(opts.resizable || {}, {\r\n                autoHide: !(opts.always_show_resize_handle || false),\r\n                handles: 'se'\r\n            }),\r\n            draggable: _.defaults(opts.draggable || {}, {\r\n                handle: '.grid-stack-item-handle',\r\n                scroll: false,\r\n                appendTo: 'body'\r\n            })\r\n        });\r\n        this.opts.is_nested = is_nested;\r\n\r\n        this.container.addClass(this.opts._class);\r\n        if (is_nested) {\r\n            this.container.addClass('grid-stack-nested');\r\n        }\r\n\r\n        this._init_styles();\r\n\r\n        this.grid = new GridStackEngine(this.opts.width, function (nodes) {\r\n            var max_height = 0;\r\n            _.forEach(nodes, function (n) {\r\n                if (n._id == null) {\r\n                    n.el.remove();\r\n                }\r\n                else {\r\n                    n.el\r\n                        .attr('data-gs-x', n.x)\r\n                        .attr('data-gs-y', n.y)\r\n                        .attr('data-gs-width', n.width)\r\n                        .attr('data-gs-height', n.height);\r\n                    max_height = Math.max(max_height, n.y + n.height);\r\n                }\r\n            });\r\n            self._update_styles(max_height + 10);\r\n        }, this.opts.float, this.opts.height, undefined, this.opts.layout);\r\n\r\n        if (this.opts.auto) {\r\n            var elements = [];\r\n            var _this = this;\r\n            this.container.children('.' + this.opts.item_class).each(function (index, el) {\r\n                el = $(el);\r\n                elements.push({\r\n                    el: el,\r\n                    i: parseInt(el.attr('data-gs-x')) + parseInt(el.attr('data-gs-y')) * _this.opts.width // Use opts.width as weight for Y\r\n                });\r\n            });\r\n            _.chain(elements).sortBy(function (x) { return x.i; }).each(function (i) {\r\n                self._prepare_element(i.el);\r\n            }).value();\r\n        }\r\n\r\n        this.set_animation(this.opts.animate);\r\n\r\n        this.placeholder = $('<div class=\"' + this.opts.placeholder_class + ' ' + this.opts.item_class + '\"><div class=\"placeholder-content\" /></div>').hide();\r\n        this.container.height((this.grid.get_grid_height()) * (this.opts.cell_height + this.opts.vertical_margin) - this.opts.vertical_margin);\r\n\r\n        var on_resize_handler = function () {\r\n            if (self._is_one_column_mode()) {\r\n                if (one_column_mode)\r\n                    return;\r\n\r\n                one_column_mode = true;\r\n\r\n                self.grid._sort_nodes();\r\n                _.forEach(self.grid.nodes, function (node) {\r\n                    self.container.append(node.el);\r\n\r\n                    if (!node.no_move) {\r\n                        node.el.draggable('disable');\r\n                    }\r\n                    if (!node.no_resize) {\r\n                        node.el.resizable('disable');\r\n                    }\r\n                });\r\n            }\r\n            else {\r\n                if (!one_column_mode)\r\n                    return;\r\n\r\n                one_column_mode = false;\r\n\r\n                _.forEach(self.grid.nodes, function (node) {\r\n                    if (!node.no_move) {\r\n                        node.el.draggable('enable');\r\n                    }\r\n                    if (!node.no_resize) {\r\n                        node.el.resizable('enable');\r\n                    }\r\n                });\r\n            }\r\n        };\r\n\r\n        $(window).resize(on_resize_handler);\r\n        on_resize_handler();\r\n    };\r\n\r\n    GridStack.prototype._init_styles = function () {\r\n        if (this._styles_id) {\r\n            $('[data-gs-id=\"' + this._styles_id + '\"]').remove();\r\n        }\r\n        this._styles_id = 'gridstack-style-' + (Math.random() * 100000).toFixed();\r\n        this._styles = Utils.create_stylesheet(this._styles_id);\r\n        if (this._styles != null)\r\n            this._styles._max = 0;\r\n    };\r\n\r\n    GridStack.prototype._update_styles = function (max_height) {\r\n        if (this._styles == null) {\r\n            return;\r\n        }\r\n\r\n        var prefix = '.' + this.opts._class + ' .' + this.opts.item_class;\r\n\r\n        if (typeof max_height == 'undefined') {\r\n            max_height = this._styles._max;\r\n            this._init_styles();\r\n            this._update_container_height();\r\n        }\r\n\r\n        if (this._styles._max == 0) {\r\n            Utils.insert_css_rule(this._styles, prefix, 'min-height: ' + (this.opts.cell_height) + 'px;', 0);\r\n        }\r\n\r\n        if (max_height > this._styles._max) {\r\n            for (var i = this._styles._max; i < max_height; ++i) {\r\n                Utils.insert_css_rule(this._styles,\r\n                    prefix + '[data-gs-height=\"' + (i + 1) + '\"]',\r\n                    'height: ' + (this.opts.cell_height * (i + 1) + this.opts.vertical_margin * i) + 'px;',\r\n                    i\r\n                );\r\n                Utils.insert_css_rule(this._styles,\r\n                    prefix + '[data-gs-min-height=\"' + (i + 1) + '\"]',\r\n                    'min-height: ' + (this.opts.cell_height * (i + 1) + this.opts.vertical_margin * i) + 'px;',\r\n                    i\r\n                );\r\n                Utils.insert_css_rule(this._styles,\r\n                    prefix + '[data-gs-max-height=\"' + (i + 1) + '\"]',\r\n                    'max-height: ' + (this.opts.cell_height * (i + 1) + this.opts.vertical_margin * i) + 'px;',\r\n                    i\r\n                );\r\n                Utils.insert_css_rule(this._styles,\r\n                    prefix + '[data-gs-y=\"' + i + '\"]',\r\n                    'top: ' + (this.opts.cell_height * i + this.opts.vertical_margin * i) + 'px;',\r\n                    i\r\n                );\r\n            }\r\n            this._styles._max = max_height;\r\n        }\r\n    };\r\n\r\n    GridStack.prototype._update_container_height = function () {\r\n        if (this.grid._update_counter) {\r\n            return;\r\n        }\r\n        this.container.height(this.grid.get_grid_height() * (this.opts.cell_height + this.opts.vertical_margin) - this.opts.vertical_margin);\r\n    };\r\n\r\n    GridStack.prototype._is_one_column_mode = function () {\r\n        return (window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth) <= this.opts.min_width;\r\n    };\r\n\r\n    GridStack.prototype._prepare_element = function (el) {\r\n        var self = this;\r\n        el = $(el);\r\n\r\n        el.addClass(this.opts.item_class);\r\n\r\n        var node = self.grid.add_node({\r\n            x: el.attr('data-gs-x'),\r\n            y: el.attr('data-gs-y'),\r\n            width: el.attr('data-gs-width'),\r\n            height: el.attr('data-gs-height'),\r\n            max_width: el.attr('data-gs-max-width'),\r\n            min_width: el.attr('data-gs-min-width'),\r\n            max_height: el.attr('data-gs-max-height'),\r\n            min_height: el.attr('data-gs-min-height'),\r\n            auto_position: Utils.toBool(el.attr('data-gs-auto-position')),\r\n            no_resize: Utils.toBool(el.attr('data-gs-no-resize')),\r\n            no_move: Utils.toBool(el.attr('data-gs-no-move')),\r\n            locked: Utils.toBool(el.attr('data-gs-locked')),\r\n            el: el\r\n        });\r\n        el.data('_gridstack_node', node);\r\n\r\n        var cell_width, cell_height;\r\n\r\n        var on_start_moving = function (event, ui) {\r\n            self.container.append(self.placeholder);\r\n            node.isDragging = true;\r\n            var o = $(this);\r\n            self.grid.clean_nodes();\r\n            self.grid.begin_update(node);\r\n            cell_width = Math.ceil(o.outerWidth() / o.attr('data-gs-width'));\r\n            cell_height = self.opts.cell_height + self.opts.vertical_margin;\r\n            self.placeholder\r\n                .attr('data-gs-x', o.attr('data-gs-x'))\r\n                .attr('data-gs-y', o.attr('data-gs-y'))\r\n                .attr('data-gs-width', o.attr('data-gs-width'))\r\n                .attr('data-gs-height', o.attr('data-gs-height'))\r\n                .show();\r\n            node.el = self.placeholder;\r\n\r\n            el.resizable('option', 'minWidth', cell_width * (node.min_width || 1));\r\n            el.resizable('option', 'minHeight', self.opts.cell_height * (node.min_height || 1));\r\n        };\r\n\r\n        var on_end_moving = function (event, ui) {\r\n            node.isDragging = false;\r\n            //self.grid._fix_afterdrag_collisions(node);\r\n            self.placeholder.detach();\r\n            var o = $(this);\r\n            node.el = o;\r\n            self.placeholder.hide();\r\n            o\r\n                .attr('data-gs-x', node.x)\r\n                .attr('data-gs-y', node.y)\r\n                .attr('data-gs-width', node.width)\r\n                .attr('data-gs-height', node.height)\r\n                .removeAttr('style');\r\n            self._update_container_height();\r\n            var elements = self.grid.get_dirty_nodes();\r\n            if (elements && elements.length)\r\n                self.container.trigger('change', [elements]);\r\n\r\n            self.grid.end_update();\r\n        };\r\n\r\n        el.draggable(_.extend(this.opts.draggable, {\r\n            start: on_start_moving,\r\n            stop: on_end_moving,\r\n            drag: function (event, ui) {\r\n                var x = Math.round(ui.position.left / cell_width),\r\n                    y = Math.floor((ui.position.top + cell_height/2) / cell_height);\r\n                if (!self.grid.can_move_node(node, x, y, node.width, node.height)) {\r\n                    return;\r\n                }\r\n\r\n                self.grid.move_node(node, x, y);\r\n                self._update_container_height();\r\n            },\r\n            containment: this.opts.is_nested ? this.container.parent() : null\r\n        })).resizable(_.extend(this.opts.resizable, {\r\n            start: on_start_moving,\r\n            stop: on_end_moving,\r\n            resize: function (event, ui) {\r\n                var x = Math.round(ui.position.left / cell_width),\r\n                    y = Math.floor((ui.position.top + cell_height/2) / cell_height),\r\n                    width = Math.round(ui.size.width / cell_width),\r\n                    height = Math.round(ui.size.height / cell_height);\r\n                if (!self.grid.can_move_node(node, x, y, width, height)) {\r\n                    return;\r\n                }\r\n                self.grid.move_node(node, x, y, width, height);\r\n                self._update_container_height();\r\n            }\r\n        }));\r\n\r\n        if (node.no_move || this._is_one_column_mode()) {\r\n            el.draggable('disable');\r\n        }\r\n\r\n        if (node.no_resize || this._is_one_column_mode()) {\r\n            el.resizable('disable');\r\n        }\r\n\r\n        el.attr('data-gs-locked', node.locked ? 'yes' : null);\r\n    };\r\n\r\n    GridStack.prototype.set_animation = function (enable) {\r\n        if (enable) {\r\n            this.container.addClass('grid-stack-animate');\r\n        }\r\n        else {\r\n            this.container.removeClass('grid-stack-animate');\r\n        }\r\n    };\r\n\r\n    GridStack.prototype.add_widget = function (el, x, y, width, height, auto_position) {\r\n        el = $(el);\r\n        if (typeof x != 'undefined') el.attr('data-gs-x', x);\r\n        if (typeof y != 'undefined') el.attr('data-gs-y', y);\r\n        if (typeof width != 'undefined') el.attr('data-gs-width', width);\r\n        if (typeof height != 'undefined') el.attr('data-gs-height', height);\r\n        if (typeof auto_position != 'undefined') el.attr('data-gs-auto-position', auto_position ? 'yes' : null);\r\n        this.container.append(el);\r\n        this._prepare_element(el);\r\n        this._update_container_height();\r\n\r\n        return el;\r\n    };\r\n\r\n    GridStack.prototype.will_it_fit = function (x, y, width, height, auto_position) {\r\n        var node = {x: x, y: y, width: width, height: height, auto_position: auto_position};\r\n        return this.grid.can_be_placed_with_respect_to_height(node);\r\n    };\r\n\r\n    GridStack.prototype.remove_widget = function (el, detach_node) {\r\n        detach_node = typeof detach_node === 'undefined' ? true : detach_node;\r\n        el = $(el);\r\n        var node = el.data('_gridstack_node');\r\n        this.grid.remove_node(node);\r\n        el.removeData('_gridstack_node');\r\n        this._update_container_height();\r\n        if (detach_node)\r\n            el.remove();\r\n    };\r\n\r\n    GridStack.prototype.remove_all = function (detach_node) {\r\n        _.forEach(this.grid.nodes, function (node) {\r\n            this.remove_widget(node.el, detach_node);\r\n        }.bind(this));\r\n        this.grid.nodes = [];\r\n        this._update_container_height();\r\n    };\r\n\r\n    GridStack.prototype.resizable = function (el, val) {\r\n        el = $(el);\r\n        el.each(function (index, el) {\r\n            el = $(el);\r\n            var node = el.data('_gridstack_node');\r\n            if (typeof node == 'undefined' || node == null) {\r\n                return;\r\n            }\r\n\r\n            node.no_resize = !(val || false);\r\n            if (node.no_resize) {\r\n                el.resizable('disable');\r\n            }\r\n            else {\r\n                el.resizable('enable');\r\n            }\r\n        });\r\n        return this;\r\n    };\r\n\r\n    GridStack.prototype.movable = function (el, val) {\r\n        el = $(el);\r\n        el.each(function (index, el) {\r\n            el = $(el);\r\n            var node = el.data('_gridstack_node');\r\n            if (typeof node == 'undefined' || node == null) {\r\n                return;\r\n            }\r\n\r\n            node.no_move = !(val || false);\r\n            if (node.no_move) {\r\n                el.draggable('disable');\r\n            }\r\n            else {\r\n                el.draggable('enable');\r\n            }\r\n        });\r\n        return this;\r\n    };\r\n\r\n    GridStack.prototype.disable = function () {\r\n        this.movable(this.container.children('.' + this.opts.item_class), false);\r\n        this.resizable(this.container.children('.' + this.opts.item_class), false);\r\n    };\r\n\r\n    GridStack.prototype.enable = function () {\r\n        this.movable(this.container.children('.' + this.opts.item_class), true);\r\n        this.resizable(this.container.children('.' + this.opts.item_class), true);\r\n    };\r\n\r\n    GridStack.prototype.locked = function (el, val) {\r\n        el = $(el);\r\n        el.each(function (index, el) {\r\n            el = $(el);\r\n            var node = el.data('_gridstack_node');\r\n            if (typeof node == 'undefined' || node == null) {\r\n                return;\r\n            }\r\n\r\n            node.locked = (val || false);\r\n            el.attr('data-gs-locked', node.locked ? 'yes' : null);\r\n        });\r\n        return this;\r\n    };\r\n\r\n    GridStack.prototype._update_element = function (el, callback) {\r\n        el = $(el).first();\r\n        var node = el.data('_gridstack_node');\r\n        if (typeof node == 'undefined' || node == null) {\r\n            return;\r\n        }\r\n\r\n        var self = this;\r\n\r\n        self.grid.clean_nodes();\r\n        self.grid.begin_update(node);\r\n\r\n        callback.call(this, el, node);\r\n\r\n        self._update_container_height();\r\n        var elements = self.grid.get_dirty_nodes();\r\n        if (elements && elements.length)\r\n            self.container.trigger('change', [elements]);\r\n\r\n        self.grid.end_update();\r\n    };\r\n\r\n    GridStack.prototype.resize = function (el, width, height) {\r\n        this._update_element(el, function (el, node) {\r\n            width = (width != null && typeof width != 'undefined') ? width : node.width;\r\n            height = (height != null && typeof height != 'undefined') ? height : node.height;\r\n\r\n            this.grid.move_node(node, node.x, node.y, width, height);\r\n        });\r\n    };\r\n\r\n    GridStack.prototype.move = function (el, x, y) {\r\n        this._update_element(el, function (el, node) {\r\n            x = (x != null && typeof x != 'undefined') ? x : node.x;\r\n            y = (y != null && typeof y != 'undefined') ? y : node.y;\r\n\r\n            this.grid.move_node(node, x, y, node.width, node.height);\r\n        });\r\n    };\r\n\r\n    GridStack.prototype.update = function (el, x, y, width, height) {\r\n        this._update_element(el, function (el, node) {\r\n            x = (x != null && typeof x != 'undefined') ? x : node.x;\r\n            y = (y != null && typeof y != 'undefined') ? y : node.y;\r\n            width = (width != null && typeof width != 'undefined') ? width : node.width;\r\n            height = (height != null && typeof height != 'undefined') ? height : node.height;\r\n\r\n            this.grid.move_node(node, x, y, width, height);\r\n        });\r\n    };\r\n\r\n    GridStack.prototype.cell_height = function (val) {\r\n        if (typeof val == 'undefined') {\r\n            return this.opts.cell_height;\r\n        }\r\n        val = parseInt(val);\r\n        if (val == this.opts.cell_height)\r\n            return;\r\n        this.opts.cell_height = val || this.opts.cell_height;\r\n        this._update_styles();\r\n    };\r\n\r\n    GridStack.prototype.cell_width = function () {\r\n        var o = this.container.children('.' + this.opts.item_class).first();\r\n        return Math.ceil(o.outerWidth() / o.attr('data-gs-width'));\r\n    };\r\n\r\n    GridStack.prototype.get_cell_from_pixel = function(position) {\r\n        var containerPos = this.container.position();\r\n        var relativeLeft = position.left - containerPos.left;\r\n        var relativeTop = position.top - containerPos.top;\r\n\r\n        var column_width = Math.floor(this.container.width() / this.opts.width);\r\n        var row_height = this.opts.cell_height + this.opts.vertical_margin;\r\n\r\n        return {x: Math.floor(relativeLeft / column_width), y: Math.floor(relativeTop / row_height)};\r\n    };\r\n\r\n    GridStack.prototype.batch_update = function () {\r\n        this.grid.batch_update();\r\n    };\r\n\r\n    GridStack.prototype.commit = function () {\r\n        this.grid.commit();\r\n        this._update_container_height()\r\n    };\r\n\r\n    GridStack.prototype.is_area_empty = function (x, y, width, height) {\r\n        return this.grid.is_area_empty(x, y, width, height);\r\n    };\r\n\r\n    scope.GridStackUI = GridStack;\r\n\r\n    scope.GridStackUI.Utils = Utils;\r\n\r\n    $.fn.gridstack = function (opts) {\r\n        return this.each(function () {\r\n            if (!$(this).data('gridstack')) {\r\n                $(this).data('gridstack', new GridStack(this, opts));\r\n            }\r\n        });\r\n    };\r\n\r\n    return scope.GridStackUI;\r\n});\r\n"],"sourceRoot":"/source/"}