From 87f958461c85361b090f79c2d103614b98b79477 Mon Sep 17 00:00:00 2001 From: g7sim <30436307+g7sim@users.noreply.github.com> Date: Tue, 18 Jan 2022 21:57:19 +0100 Subject: [PATCH] alpha3 --- Addon.ini | 2 +- include/common.php | 2 +- include/thirdparty/js/nestedSortable2.js | 907 +++++++++++++++++++++++ 3 files changed, 909 insertions(+), 2 deletions(-) create mode 100644 include/thirdparty/js/nestedSortable2.js diff --git a/Addon.ini b/Addon.ini index 04df7ea..232d273 100644 --- a/Addon.ini +++ b/Addon.ini @@ -2,4 +2,4 @@ Addon_Name = 'Typesetter Core' Addon_Unique_ID = 40 -Addon_Version = 5.3-p8.0-a2 \ No newline at end of file +Addon_Version = 5.3-p8-a3 \ No newline at end of file diff --git a/include/common.php b/include/common.php index 6bba77c..eb2a2ea 100644 --- a/include/common.php +++ b/include/common.php @@ -49,7 +49,7 @@ gp_defined('CMS_NAME_FULL', 'Typesetter CMS'); gp_defined('addon_browse_path', CMS_DOMAIN . '/index.php'); gp_defined('debug_path', CMS_DOMAIN . '/index.php/Debug'); -gp_defined('gpversion', '5.3-p8'); +gp_defined('gpversion', '5.3-p8-a3'); gp_defined('gp_random', \gp\tool::RandomString()); diff --git a/include/thirdparty/js/nestedSortable2.js b/include/thirdparty/js/nestedSortable2.js new file mode 100644 index 0000000..43df6a2 --- /dev/null +++ b/include/thirdparty/js/nestedSortable2.js @@ -0,0 +1,907 @@ +/* + * jQuery UI Nested Sortable + * v 2.1a / 2016-02-04 + * https://github.com/ilikenwf/nestedSortable + * + * Depends on: + * jquery.ui.sortable.js 1.10+ + * + * Copyright (c) 2010-2016 Manuele J Sarfatti and contributors + * Licensed under the MIT License + * http://www.opensource.org/licenses/mit-license.php + */ +(function( factory ) { + "use strict"; + + if ( typeof define === "function" && define.amd ) { + + // AMD. Register as an anonymous module. + define([ + "jquery", + "jquery-ui/ui/sortable" + ], factory ); + } else { + + // Browser globals + factory( window.jQuery ); + } +}(function($) { + "use strict"; + + function isOverAxis( x, reference, size ) { + return ( x > reference ) && ( x < ( reference + size ) ); + } + + $.widget("mjs.nestedSortable", $.extend({}, $.ui.sortable.prototype, { + + options: { + disableParentChange: false, + doNotClear: false, + expandOnHover: 700, + isAllowed: function() { return true; }, + isTree: false, + listType: "ol", + maxLevels: 0, + protectRoot: false, + rootID: null, + rtl: false, + startCollapsed: false, + tabSize: 20, + + branchClass: "mjs-nestedSortable-branch", + collapsedClass: "mjs-nestedSortable-collapsed", + disableNestingClass: "mjs-nestedSortable-no-nesting", + errorClass: "mjs-nestedSortable-error", + expandedClass: "mjs-nestedSortable-expanded", + hoveringClass: "mjs-nestedSortable-hovering", + leafClass: "mjs-nestedSortable-leaf", + disabledClass: "mjs-nestedSortable-disabled" + }, + + _create: function() { + var self = this, + err; + + this.element.data("ui-sortable", this.element.data("mjs-nestedSortable")); + + // mjs - prevent browser from freezing if the HTML is not correct + if (!this.element.is(this.options.listType)) { + err = "nestedSortable: " + + "Please check that the listType option is set to your actual list type"; + + throw new Error(err); + } + + // if we have a tree with expanding/collapsing functionality, + // force 'intersect' tolerance method + if (this.options.isTree && this.options.expandOnHover) { + this.options.tolerance = "intersect"; + } + + $.ui.sortable.prototype._create.apply(this, arguments); + + // prepare the tree by applying the right classes + // (the CSS is responsible for actual hide/show functionality) + if (this.options.isTree) { + $(this.items).each(function() { + var $li = this.item, + hasCollapsedClass = $li.hasClass(self.options.collapsedClass), + hasExpandedClass = $li.hasClass(self.options.expandedClass); + + if ($li.children(self.options.listType).length) { + $li.addClass(self.options.branchClass); + // expand/collapse class only if they have children + + if ( !hasCollapsedClass && !hasExpandedClass ) { + if (self.options.startCollapsed) { + $li.addClass(self.options.collapsedClass); + } else { + $li.addClass(self.options.expandedClass); + } + } + } else { + $li.addClass(self.options.leafClass); + } + }); + } + }, + + _destroy: function() { + this.element + .removeData("mjs-nestedSortable") + .removeData("ui-sortable"); + return $.ui.sortable.prototype._destroy.apply(this, arguments); + }, + + _mouseDrag: function(event) { + var i, + item, + itemElement, + intersection, + self = this, + o = this.options, + scrolled = false, + $document = $(document), + previousTopOffset, + parentItem, + level, + childLevels, + itemAfter, + itemBefore, + newList, + method, + a, + previousItem, + nextItem, + helperIsNotSibling; + + //Compute the helpers position + this.position = this._generatePosition(event); + this.positionAbs = this._convertPositionTo("absolute"); + + if (!this.lastPositionAbs) { + this.lastPositionAbs = this.positionAbs; + } + + //Do scrolling + if (this.options.scroll) { + if (this.scrollParent[0] !== document && this.scrollParent[0].tagName !== "HTML") { + + if ( + ( + this.overflowOffset.top + + this.scrollParent[0].offsetHeight + ) - + event.pageY < + o.scrollSensitivity + ) { + scrolled = this.scrollParent.scrollTop() + o.scrollSpeed; + this.scrollParent.scrollTop(scrolled); + } else if ( + event.pageY - + this.overflowOffset.top < + o.scrollSensitivity + ) { + scrolled = this.scrollParent.scrollTop() - o.scrollSpeed; + this.scrollParent.scrollTop(scrolled); + } + + if ( + ( + this.overflowOffset.left + + this.scrollParent[0].offsetWidth + ) - + event.pageX < + o.scrollSensitivity + ) { + scrolled = this.scrollParent.scrollLeft() + o.scrollSpeed; + this.scrollParent.scrollLeft(scrolled); + } else if ( + event.pageX - + this.overflowOffset.left < + o.scrollSensitivity + ) { + scrolled = this.scrollParent.scrollLeft() - o.scrollSpeed; + this.scrollParent.scrollLeft(scrolled); + } + + } else { + + if ( + event.pageY - + $document.scrollTop() < + o.scrollSensitivity + ) { + scrolled = $document.scrollTop() - o.scrollSpeed; + $document.scrollTop(scrolled); + } else if ( + $(window).height() - + ( + event.pageY - + $document.scrollTop() + ) < + o.scrollSensitivity + ) { + scrolled = $document.scrollTop() + o.scrollSpeed; + $document.scrollTop(scrolled); + } + + if ( + event.pageX - + $document.scrollLeft() < + o.scrollSensitivity + ) { + scrolled = $document.scrollLeft() - o.scrollSpeed; + $document.scrollLeft(scrolled); + } else if ( + $(window).width() - + ( + event.pageX - + $document.scrollLeft() + ) < + o.scrollSensitivity + ) { + scrolled = $document.scrollLeft() + o.scrollSpeed; + $document.scrollLeft(scrolled); + } + + } + + if (scrolled !== false && $.ui.ddmanager && !o.dropBehaviour) { + $.ui.ddmanager.prepareOffsets(this, event); + } + } + + //Regenerate the absolute position used for position checks + this.positionAbs = this._convertPositionTo("absolute"); + + // mjs - find the top offset before rearrangement, + previousTopOffset = this.placeholder.offset().top; + + //Set the helper position + if (!this.options.axis || this.options.axis !== "y") { + this.helper[0].style.left = this.position.left + "px"; + } + if (!this.options.axis || this.options.axis !== "x") { + this.helper[0].style.top = (this.position.top) + "px"; + } + + // mjs - check and reset hovering state at each cycle + this.hovering = this.hovering ? this.hovering : null; + this.mouseentered = this.mouseentered ? this.mouseentered : false; + + // mjs - let's start caching some variables + (function() { + var _parentItem = this.placeholder.parent().parent(); + if (_parentItem && _parentItem.closest(".ui-sortable").length) { + parentItem = _parentItem; + } + }.call(this)); + + level = this._getLevel(this.placeholder); + childLevels = this._getChildLevels(this.helper); + newList = document.createElement(o.listType); + + //Rearrange + for (i = this.items.length - 1; i >= 0; i--) { + + //Cache variables and intersection, continue if no intersection + item = this.items[i]; + itemElement = item.item[0]; + intersection = this._intersectsWithPointer(item); + if (!intersection) { + continue; + } + + // Only put the placeholder inside the current Container, skip all + // items form other containers. This works because when moving + // an item from one container to another the + // currentContainer is switched before the placeholder is moved. + // + // Without this moving items in "sub-sortables" can cause the placeholder to jitter + // beetween the outer and inner container. + if (item.instance !== this.currentContainer) { + continue; + } + + // No action if intersected item is disabled + // and the element above or below in the direction we're going is also disabled + if (itemElement.className.indexOf(o.disabledClass) !== -1) { + // Note: intersection hardcoded direction values from + // jquery.ui.sortable.js:_intersectsWithPointer + if (intersection === 2) { + // Going down + itemAfter = this.items[i + 1]; + if (itemAfter && itemAfter.item.hasClass(o.disabledClass)) { + continue; + } + + } else if (intersection === 1) { + // Going up + itemBefore = this.items[i - 1]; + if (itemBefore && itemBefore.item.hasClass(o.disabledClass)) { + continue; + } + } + } + + method = intersection === 1 ? "next" : "prev"; + + // cannot intersect with itself + // no useless actions that have been done before + // no action if the item moved is the parent of the item checked + if (itemElement !== this.currentItem[0] && + this.placeholder[method]()[0] !== itemElement && + !$.contains(this.placeholder[0], itemElement) && + ( + this.options.type === "semi-dynamic" ? + !$.contains(this.element[0], itemElement) : + true + ) + ) { + + // mjs - we are intersecting an element: + // trigger the mouseenter event and store this state + if (!this.mouseentered) { + $(itemElement).mouseenter(); + this.mouseentered = true; + } + + // mjs - if the element has children and they are hidden, + // show them after a delay (CSS responsible) + if (o.isTree && $(itemElement).hasClass(o.collapsedClass) && o.expandOnHover) { + if (!this.hovering) { + $(itemElement).addClass(o.hoveringClass); + this.hovering = window.setTimeout(function() { + $(itemElement) + .removeClass(o.collapsedClass) + .addClass(o.expandedClass); + + self.refreshPositions(); + self._trigger("expand", event, [self._uiHash(), itemElement]); + }, o.expandOnHover); + } + } + + this.direction = intersection === 1 ? "down" : "up"; + + // mjs - rearrange the elements and reset timeouts and hovering state + if (this.options.tolerance === "pointer" || this._intersectsWithSides(item)) { + $(itemElement).mouseleave(); + this.mouseentered = false; + $(itemElement).removeClass(o.hoveringClass); + if (this.hovering) { + window.clearTimeout(this.hovering); + } + this.hovering = null; + + // mjs - do not switch container if + // it's a root item and 'protectRoot' is true + // or if it's not a root item but we are trying to make it root + if (o.protectRoot && + !( + this.currentItem[0].parentNode === this.element[0] && + // it's a root item + itemElement.parentNode !== this.element[0] + // it's intersecting a non-root item + ) + ) { + if (this.currentItem[0].parentNode !== this.element[0] && + itemElement.parentNode === this.element[0] + ) { + + if ( !$(itemElement).children(o.listType).length) { + itemElement.appendChild(newList); + if (o.isTree) { + $(itemElement) + .removeClass(o.leafClass) + .addClass(o.branchClass + " " + o.expandedClass); + } + } + + if (this.direction === "down") { + a = $(itemElement).prev().children(o.listType); + } else { + a = $(itemElement).children(o.listType); + } + + if (a[0] !== undefined) { + this._rearrange(event, null, a); + } + + } else { + this._rearrange(event, item); + } + } else if (!o.protectRoot) { + this._rearrange(event, item); + } + } else { + break; + } + + // Clear emtpy ul's/ol's + this._clearEmpty(itemElement); + + this._trigger("change", event, this._uiHash()); + break; + } + } + + // mjs - to find the previous sibling in the list, + // keep backtracking until we hit a valid list item. + (function() { + var _previousItem = this.placeholder.prev(); + if (_previousItem.length) { + previousItem = _previousItem; + } else { + previousItem = null; + } + }.call(this)); + + if (previousItem != null) { + while ( + previousItem[0].nodeName.toLowerCase() !== "li" || + previousItem[0].className.indexOf(o.disabledClass) !== -1 || + previousItem[0] === this.currentItem[0] || + previousItem[0] === this.helper[0] + ) { + if (previousItem[0].previousSibling) { + previousItem = $(previousItem[0].previousSibling); + } else { + previousItem = null; + break; + } + } + } + + // mjs - to find the next sibling in the list, + // keep stepping forward until we hit a valid list item. + (function() { + var _nextItem = this.placeholder.next(); + if (_nextItem.length) { + nextItem = _nextItem; + } else { + nextItem = null; + } + }.call(this)); + + if (nextItem != null) { + while ( + nextItem[0].nodeName.toLowerCase() !== "li" || + nextItem[0].className.indexOf(o.disabledClass) !== -1 || + nextItem[0] === this.currentItem[0] || + nextItem[0] === this.helper[0] + ) { + if (nextItem[0].nextSibling) { + nextItem = $(nextItem[0].nextSibling); + } else { + nextItem = null; + break; + } + } + } + + this.beyondMaxLevels = 0; + + // mjs - if the item is moved to the left, send it one level up + // but only if it's at the bottom of the list + if (parentItem != null && + nextItem == null && + !(o.protectRoot && parentItem[0].parentNode == this.element[0]) && + ( + o.rtl && + ( + this.positionAbs.left + + this.helper.outerWidth() > parentItem.offset().left + + parentItem.outerWidth() + ) || + !o.rtl && (this.positionAbs.left < parentItem.offset().left) + ) + ) { + + parentItem.after(this.placeholder[0]); + helperIsNotSibling = !parentItem + .children(o.listItem) + .children("li:visible:not(.ui-sortable-helper)") + .length; + if (o.isTree && helperIsNotSibling) { + parentItem + .removeClass(this.options.branchClass + " " + this.options.expandedClass) + .addClass(this.options.leafClass); + } + if(typeof parentItem !== 'undefined') + this._clearEmpty(parentItem[0]); + this._trigger("change", event, this._uiHash()); + // mjs - if the item is below a sibling and is moved to the right, + // make it a child of that sibling + } else if (previousItem != null && + !previousItem.hasClass(o.disableNestingClass) && + ( + previousItem.children(o.listType).length && + previousItem.children(o.listType).is(":visible") || + !previousItem.children(o.listType).length + ) && + !(o.protectRoot && this.currentItem[0].parentNode === this.element[0]) && + ( + o.rtl && + ( + this.positionAbs.left + + this.helper.outerWidth() < + previousItem.offset().left + + previousItem.outerWidth() - + o.tabSize + ) || + !o.rtl && + (this.positionAbs.left > previousItem.offset().left + o.tabSize) + ) + ) { + + this._isAllowed(previousItem, level, level + childLevels + 1); + + if (!previousItem.children(o.listType).length) { + previousItem[0].appendChild(newList); + if (o.isTree) { + previousItem + .removeClass(o.leafClass) + .addClass(o.branchClass + " " + o.expandedClass); + } + } + + // mjs - if this item is being moved from the top, add it to the top of the list. + if (previousTopOffset && (previousTopOffset <= previousItem.offset().top)) { + previousItem.children(o.listType).prepend(this.placeholder); + } else { + // mjs - otherwise, add it to the bottom of the list. + previousItem.children(o.listType)[0].appendChild(this.placeholder[0]); + } + if(typeof parentItem !== 'undefined') + this._clearEmpty(parentItem[0]); + this._trigger("change", event, this._uiHash()); + } else { + this._isAllowed(parentItem, level, level + childLevels); + } + + //Post events to containers + this._contactContainers(event); + + //Interconnect with droppables + if ($.ui.ddmanager) { + $.ui.ddmanager.drag(this, event); + } + + //Call callbacks + this._trigger("sort", event, this._uiHash()); + + this.lastPositionAbs = this.positionAbs; + return false; + + }, + + _mouseStop: function(event) { + // mjs - if the item is in a position not allowed, send it back + if (this.beyondMaxLevels) { + + this.placeholder.removeClass(this.options.errorClass); + + if (this.domPosition.prev) { + $(this.domPosition.prev).after(this.placeholder); + } else { + $(this.domPosition.parent).prepend(this.placeholder); + } + + this._trigger("revert", event, this._uiHash()); + + } + + // mjs - clear the hovering timeout, just to be sure + $("." + this.options.hoveringClass) + .mouseleave() + .removeClass(this.options.hoveringClass); + + this.mouseentered = false; + if (this.hovering) { + window.clearTimeout(this.hovering); + } + this.hovering = null; + + this._relocate_event = event; + this._pid_current = $(this.domPosition.parent).parent().attr("id"); + this._sort_current = this.domPosition.prev ? $(this.domPosition.prev).next().index() : 0; + $.ui.sortable.prototype._mouseStop.apply(this, arguments); //asybnchronous execution, @see _clear for the relocate event. + }, + + // mjs - this function is slightly modified + // to make it easier to hover over a collapsed element and have it expand + _intersectsWithSides: function(item) { + + var half = this.options.isTree ? .8 : .5, + isOverBottomHalf = isOverAxis( + this.positionAbs.top + this.offset.click.top, + item.top + (item.height * half), + item.height + ), + isOverTopHalf = isOverAxis( + this.positionAbs.top + this.offset.click.top, + item.top - (item.height * half), + item.height + ), + isOverRightHalf = isOverAxis( + this.positionAbs.left + this.offset.click.left, + item.left + (item.width / 2), + item.width + ), + verticalDirection = this._getDragVerticalDirection(), + horizontalDirection = this._getDragHorizontalDirection(); + + if (this.floating && horizontalDirection) { + return ( + (horizontalDirection === "right" && isOverRightHalf) || + (horizontalDirection === "left" && !isOverRightHalf) + ); + } else { + return verticalDirection && ( + (verticalDirection === "down" && isOverBottomHalf) || + (verticalDirection === "up" && isOverTopHalf) + ); + } + + }, + + _contactContainers: function() { + + if (this.options.protectRoot && this.currentItem[0].parentNode === this.element[0] ) { + return; + } + + $.ui.sortable.prototype._contactContainers.apply(this, arguments); + + }, + + _clear: function() { + var i, + item; + + $.ui.sortable.prototype._clear.apply(this, arguments); + + //relocate event + if (!(this._pid_current === this._uiHash().item.parent().parent().attr("id") && + this._sort_current === this._uiHash().item.index())) { + this._trigger("relocate", this._relocate_event, this._uiHash()); + } + + // mjs - clean last empty ul/ol + for (i = this.items.length - 1; i >= 0; i--) { + item = this.items[i].item[0]; + this._clearEmpty(item); + } + + }, + + serialize: function(options) { + + var o = $.extend({}, this.options, options), + items = this._getItemsAsjQuery(o && o.connected), + str = []; + + $(items).each(function() { + var res = ($(o.item || this).attr(o.attribute || "id") || "") + .match(o.expression || (/(.+)[-=_](.+)/)), + pid = ($(o.item || this).parent(o.listType) + .parent(o.items) + .attr(o.attribute || "id") || "") + .match(o.expression || (/(.+)[-=_](.+)/)); + + if (res) { + str.push( + ( + (o.key || res[1]) + + "[" + + (o.key && o.expression ? res[1] : res[2]) + "]" + ) + + "=" + + (pid ? (o.key && o.expression ? pid[1] : pid[2]) : o.rootID)); + } + }); + + if (!str.length && o.key) { + str.push(o.key + "="); + } + + return str.join("&"); + + }, + + toHierarchy: function(options) { + + var o = $.extend({}, this.options, options), + ret = []; + + $(this.element).children(o.items).each(function() { + var level = _recursiveItems(this); + ret.push(level); + }); + + return ret; + + function _recursiveItems(item) { + var id = ($(item).attr(o.attribute || "id") || "").match(o.expression || (/(.+)[-=_](.+)/)), + currentItem; + + var data = $(item).data(); + if (data.nestedSortableItem) { + delete data.nestedSortableItem; // Remove the nestedSortableItem object from the data + } + + if (id) { + currentItem = { + "id": id[2] + }; + + currentItem = $.extend({}, currentItem, data); // Combine the two objects + + if ($(item).children(o.listType).children(o.items).length > 0) { + currentItem.children = []; + $(item).children(o.listType).children(o.items).each(function() { + var level = _recursiveItems(this); + currentItem.children.push(level); + }); + } + return currentItem; + } + } + }, + + toArray: function(options) { + + var o = $.extend({}, this.options, options), + sDepth = o.startDepthCount || 0, + ret = [], + left = 1; + + if (!o.excludeRoot) { + ret.push({ + "item_id": o.rootID, + "parent_id": null, + "depth": sDepth, + "left": left, + "right": ($(o.items, this.element).length + 1) * 2 + }); + left++; + } + + $(this.element).children(o.items).each(function() { + left = _recursiveArray(this, sDepth, left); + }); + + ret = ret.sort(function(a, b) { return (a.left - b.left); }); + + return ret; + + function _recursiveArray(item, depth, _left) { + + var right = _left + 1, + id, + pid, + parentItem; + + if ($(item).children(o.listType).children(o.items).length > 0) { + depth++; + $(item).children(o.listType).children(o.items).each(function() { + right = _recursiveArray($(this), depth, right); + }); + depth--; + } + + id = ($(item).attr(o.attribute || "id") || "").match(o.expression || (/(.+)[-=_](.+)/)); + + if (depth === sDepth) { + pid = o.rootID; + } else { + parentItem = ($(item).parent(o.listType) + .parent(o.items) + .attr(o.attribute || "id")) + .match(o.expression || (/(.+)[-=_](.+)/)); + pid = parentItem[2]; + } + + if (id) { + var data = $(item).children('div').data(); + var itemObj = $.extend( data, { + "id":id[2], + "parent_id":pid, + "depth":depth, + "left":_left, + "right":right + } ); + ret.push( itemObj ); + } + + _left = right + 1; + return _left; + } + + }, + + _clearEmpty: function (item) { + function replaceClass(elem, search, replace, swap) { + if (swap) { + search = [replace, replace = search][0]; + } + + $(elem).removeClass(search).addClass(replace); + } + + var o = this.options, + childrenList = $(item).children(o.listType), + hasChildren = childrenList.has('li').length; + + var doNotClear = + o.doNotClear || + hasChildren || + o.protectRoot && $(item)[0] === this.element[0]; + + if (o.isTree) { + replaceClass(item, o.branchClass, o.leafClass, doNotClear); + } + + if (!doNotClear) { + childrenList.parent().removeClass(o.expandedClass); + childrenList.remove(); + } + }, + + _getLevel: function(item) { + + var level = 1, + list; + + if (this.options.listType) { + list = item.closest(this.options.listType); + while (list && list.length > 0 && !list.is(".ui-sortable")) { + level++; + list = list.parent().closest(this.options.listType); + } + } + + return level; + }, + + _getChildLevels: function(parent, depth) { + var self = this, + o = this.options, + result = 0; + depth = depth || 0; + + $(parent).children(o.listType).children(o.items).each(function(index, child) { + result = Math.max(self._getChildLevels(child, depth + 1), result); + }); + + return depth ? result + 1 : result; + }, + + _isAllowed: function(parentItem, level, levels) { + var o = this.options, + // this takes into account the maxLevels set to the recipient list + maxLevels = this + .placeholder + .closest(".ui-sortable") + .nestedSortable("option", "maxLevels"), + + // Check if the parent has changed to prevent it, when o.disableParentChange is true + oldParent = this.currentItem.parent().parent(), + disabledByParentchange = o.disableParentChange && ( + //From somewhere to somewhere else, except the root + typeof parentItem !== 'undefined' && !oldParent.is(parentItem) || + typeof parentItem === 'undefined' && oldParent.is("li") //From somewhere to the root + ); + // mjs - is the root protected? + // mjs - are we nesting too deep? + if ( + disabledByParentchange || + !o.isAllowed(this.placeholder, parentItem, this.currentItem) + ) { + this.placeholder.addClass(o.errorClass); + if (maxLevels < levels && maxLevels !== 0) { + this.beyondMaxLevels = levels - maxLevels; + } else { + this.beyondMaxLevels = 1; + } + } else { + if (maxLevels < levels && maxLevels !== 0) { + this.placeholder.addClass(o.errorClass); + this.beyondMaxLevels = levels - maxLevels; + } else { + this.placeholder.removeClass(o.errorClass); + this.beyondMaxLevels = 0; + } + } + } + + })); + + $.mjs.nestedSortable.prototype.options = $.extend( + {}, + $.ui.sortable.prototype.options, + $.mjs.nestedSortable.prototype.options + ); +}));