| [1532] | 1 | /* |
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| 2 | * jQuery UI Nested Sortable |
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| 3 | * v 1.3.5 / 21 jun 2012 |
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| 4 | * http://mjsarfatti.com/code/nestedSortable |
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| 5 | * |
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| 6 | * Depends on: |
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| 7 | * jquery.ui.sortable.js 1.8+ |
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| 8 | * |
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| 9 | * Copyright (c) 2010-2012 Manuele J Sarfatti |
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| 10 | * Licensed under the MIT License |
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| 11 | * http://www.opensource.org/licenses/mit-license.php |
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| 12 | */ |
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| 13 | |
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| 14 | (function($) { |
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| 15 | |
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| 16 | $.widget("mjs.nestedSortable", $.extend({}, $.ui.sortable.prototype, { |
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| 17 | |
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| 18 | options: { |
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| 19 | tabSize: 20, |
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| 20 | disableNesting: 'mjs-nestedSortable-no-nesting', |
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| 21 | errorClass: 'mjs-nestedSortable-error', |
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| 22 | doNotClear: false, |
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| 23 | listType: 'ol', |
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| 24 | maxLevels: 0, |
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| 25 | protectRoot: false, |
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| 26 | rootID: null, |
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| 27 | rtl: false, |
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| 28 | isAllowed: function(item, parent) { return true; } |
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| 29 | }, |
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| 30 | |
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| 31 | _create: function() { |
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| 32 | this.element.data('sortable', this.element.data('nestedSortable')); |
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| 33 | |
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| 34 | if (!this.element.is(this.options.listType)) |
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| 35 | throw new Error('nestedSortable: Please check the listType option is set to your actual list type'); |
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| 36 | |
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| 37 | return $.ui.sortable.prototype._create.apply(this, arguments); |
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| 38 | }, |
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| 39 | |
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| 40 | destroy: function() { |
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| 41 | this.element |
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| 42 | .removeData("nestedSortable") |
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| 43 | .unbind(".nestedSortable"); |
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| 44 | return $.ui.sortable.prototype.destroy.apply(this, arguments); |
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| 45 | }, |
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| 46 | |
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| 47 | _mouseDrag: function(event) { |
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| 48 | |
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| 49 | //Compute the helpers position |
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| 50 | this.position = this._generatePosition(event); |
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| 51 | this.positionAbs = this._convertPositionTo("absolute"); |
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| 52 | |
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| 53 | if (!this.lastPositionAbs) { |
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| 54 | this.lastPositionAbs = this.positionAbs; |
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| 55 | } |
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| 56 | |
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| 57 | var o = this.options; |
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| 58 | |
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| 59 | //Do scrolling |
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| 60 | if(this.options.scroll) { |
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| 61 | var scrolled = false; |
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| 62 | if(this.scrollParent[0] != document && this.scrollParent[0].tagName != 'HTML') { |
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| 63 | |
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| 64 | if((this.overflowOffset.top + this.scrollParent[0].offsetHeight) - event.pageY < o.scrollSensitivity) |
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| 65 | this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop + o.scrollSpeed; |
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| 66 | else if(event.pageY - this.overflowOffset.top < o.scrollSensitivity) |
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| 67 | this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop - o.scrollSpeed; |
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| 68 | |
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| 69 | if((this.overflowOffset.left + this.scrollParent[0].offsetWidth) - event.pageX < o.scrollSensitivity) |
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| 70 | this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft + o.scrollSpeed; |
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| 71 | else if(event.pageX - this.overflowOffset.left < o.scrollSensitivity) |
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| 72 | this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft - o.scrollSpeed; |
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| 73 | |
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| 74 | } else { |
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| 75 | |
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| 76 | if(event.pageY - $(document).scrollTop() < o.scrollSensitivity) |
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| 77 | scrolled = $(document).scrollTop($(document).scrollTop() - o.scrollSpeed); |
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| 78 | else if($(window).height() - (event.pageY - $(document).scrollTop()) < o.scrollSensitivity) |
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| 79 | scrolled = $(document).scrollTop($(document).scrollTop() + o.scrollSpeed); |
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| 80 | |
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| 81 | if(event.pageX - $(document).scrollLeft() < o.scrollSensitivity) |
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| 82 | scrolled = $(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed); |
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| 83 | else if($(window).width() - (event.pageX - $(document).scrollLeft()) < o.scrollSensitivity) |
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| 84 | scrolled = $(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed); |
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| 85 | |
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| 86 | } |
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| 87 | |
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| 88 | if(scrolled !== false && $.ui.ddmanager && !o.dropBehaviour) |
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| 89 | $.ui.ddmanager.prepareOffsets(this, event); |
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| 90 | } |
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| 91 | |
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| 92 | //Regenerate the absolute position used for position checks |
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| 93 | this.positionAbs = this._convertPositionTo("absolute"); |
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| 94 | |
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| 95 | // Find the top offset before rearrangement, |
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| 96 | var previousTopOffset = this.placeholder.offset().top; |
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| 97 | |
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| 98 | //Set the helper position |
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| 99 | if(!this.options.axis || this.options.axis != "y") this.helper[0].style.left = this.position.left+'px'; |
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| 100 | if(!this.options.axis || this.options.axis != "x") this.helper[0].style.top = this.position.top+'px'; |
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| 101 | |
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| 102 | //Rearrange |
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| 103 | for (var i = this.items.length - 1; i >= 0; i--) { |
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| 104 | |
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| 105 | //Cache variables and intersection, continue if no intersection |
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| 106 | var item = this.items[i], itemElement = item.item[0], intersection = this._intersectsWithPointer(item); |
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| 107 | if (!intersection) continue; |
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| 108 | |
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| 109 | if(itemElement != this.currentItem[0] //cannot intersect with itself |
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| 110 | && this.placeholder[intersection == 1 ? "next" : "prev"]()[0] != itemElement //no useless actions that have been done before |
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| 111 | && !$.contains(this.placeholder[0], itemElement) //no action if the item moved is the parent of the item checked |
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| 112 | && (this.options.type == 'semi-dynamic' ? !$.contains(this.element[0], itemElement) : true) |
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| 113 | //&& itemElement.parentNode == this.placeholder[0].parentNode // only rearrange items within the same container |
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| 114 | ) { |
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| 115 | |
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| 116 | $(itemElement).mouseenter(); |
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| 117 | |
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| 118 | this.direction = intersection == 1 ? "down" : "up"; |
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| 119 | |
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| 120 | if (this.options.tolerance == "pointer" || this._intersectsWithSides(item)) { |
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| 121 | $(itemElement).mouseleave(); |
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| 122 | this._rearrange(event, item); |
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| 123 | } else { |
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| 124 | break; |
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| 125 | } |
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| 126 | |
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| 127 | // Clear emtpy ul's/ol's |
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| 128 | this._clearEmpty(itemElement); |
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| 129 | |
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| 130 | this._trigger("change", event, this._uiHash()); |
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| 131 | break; |
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| 132 | } |
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| 133 | } |
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| 134 | |
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| 135 | var parentItem = (this.placeholder[0].parentNode.parentNode && |
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| 136 | $(this.placeholder[0].parentNode.parentNode).closest('.ui-sortable').length) |
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| 137 | ? $(this.placeholder[0].parentNode.parentNode) |
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| 138 | : null, |
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| 139 | level = this._getLevel(this.placeholder), |
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| 140 | childLevels = this._getChildLevels(this.helper); |
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| 141 | |
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| 142 | // To find the previous sibling in the list, keep backtracking until we hit a valid list item. |
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| 143 | var previousItem = this.placeholder[0].previousSibling ? $(this.placeholder[0].previousSibling) : null; |
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| 144 | if (previousItem != null) { |
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| 145 | while (previousItem[0].nodeName.toLowerCase() != 'li' || previousItem[0] == this.currentItem[0] || previousItem[0] == this.helper[0]) { |
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| 146 | if (previousItem[0].previousSibling) { |
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| 147 | previousItem = $(previousItem[0].previousSibling); |
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| 148 | } else { |
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| 149 | previousItem = null; |
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| 150 | break; |
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| 151 | } |
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| 152 | } |
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| 153 | } |
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| 154 | |
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| 155 | // To find the next sibling in the list, keep stepping forward until we hit a valid list item. |
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| 156 | var nextItem = this.placeholder[0].nextSibling ? $(this.placeholder[0].nextSibling) : null; |
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| 157 | if (nextItem != null) { |
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| 158 | while (nextItem[0].nodeName.toLowerCase() != 'li' || nextItem[0] == this.currentItem[0] || nextItem[0] == this.helper[0]) { |
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| 159 | if (nextItem[0].nextSibling) { |
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| 160 | nextItem = $(nextItem[0].nextSibling); |
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| 161 | } else { |
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| 162 | nextItem = null; |
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| 163 | break; |
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| 164 | } |
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| 165 | } |
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| 166 | } |
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| 167 | |
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| 168 | var newList = document.createElement(o.listType); |
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| 169 | |
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| 170 | this.beyondMaxLevels = 0; |
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| 171 | |
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| 172 | // If the item is moved to the left, send it to its parent's level unless there are siblings below it. |
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| 173 | if (parentItem != null && nextItem == null && |
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| 174 | (o.rtl && (this.positionAbs.left + this.helper.outerWidth() > parentItem.offset().left + parentItem.outerWidth()) || |
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| 175 | !o.rtl && (this.positionAbs.left < parentItem.offset().left))) { |
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| 176 | parentItem.after(this.placeholder[0]); |
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| 177 | this._clearEmpty(parentItem[0]); |
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| 178 | this._trigger("change", event, this._uiHash()); |
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| 179 | } |
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| 180 | // If the item is below a sibling and is moved to the right, make it a child of that sibling. |
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| 181 | else if (previousItem != null && |
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| 182 | (o.rtl && (this.positionAbs.left + this.helper.outerWidth() < previousItem.offset().left + previousItem.outerWidth() - o.tabSize) || |
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| 183 | !o.rtl && (this.positionAbs.left > previousItem.offset().left + o.tabSize))) { |
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| 184 | this._isAllowed(previousItem, level, level+childLevels+1); |
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| 185 | if (!previousItem.children(o.listType).length) { |
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| 186 | previousItem[0].appendChild(newList); |
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| 187 | } |
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| 188 | // If this item is being moved from the top, add it to the top of the list. |
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| 189 | if (previousTopOffset && (previousTopOffset <= previousItem.offset().top)) { |
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| 190 | previousItem.children(o.listType).prepend(this.placeholder); |
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| 191 | } |
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| 192 | // Otherwise, add it to the bottom of the list. |
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| 193 | else { |
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| 194 | previousItem.children(o.listType)[0].appendChild(this.placeholder[0]); |
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| 195 | } |
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| 196 | this._trigger("change", event, this._uiHash()); |
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| 197 | } |
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| 198 | else { |
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| 199 | this._isAllowed(parentItem, level, level+childLevels); |
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| 200 | } |
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| 201 | |
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| 202 | //Post events to containers |
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| 203 | this._contactContainers(event); |
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| 204 | |
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| 205 | //Interconnect with droppables |
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| 206 | if($.ui.ddmanager) $.ui.ddmanager.drag(this, event); |
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| 207 | |
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| 208 | //Call callbacks |
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| 209 | this._trigger('sort', event, this._uiHash()); |
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| 210 | |
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| 211 | this.lastPositionAbs = this.positionAbs; |
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| 212 | return false; |
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| 213 | |
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| 214 | }, |
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| 215 | |
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| 216 | _mouseStop: function(event, noPropagation) { |
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| 217 | |
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| 218 | // If the item is in a position not allowed, send it back |
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| 219 | if (this.beyondMaxLevels) { |
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| 220 | |
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| 221 | this.placeholder.removeClass(this.options.errorClass); |
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| 222 | |
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| 223 | if (this.domPosition.prev) { |
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| 224 | $(this.domPosition.prev).after(this.placeholder); |
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| 225 | } else { |
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| 226 | $(this.domPosition.parent).prepend(this.placeholder); |
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| 227 | } |
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| 228 | |
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| 229 | this._trigger("revert", event, this._uiHash()); |
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| 230 | |
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| 231 | } |
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| 232 | |
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| 233 | // Clean last empty ul/ol |
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| 234 | for (var i = this.items.length - 1; i >= 0; i--) { |
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| 235 | var item = this.items[i].item[0]; |
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| 236 | this._clearEmpty(item); |
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| 237 | } |
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| 238 | |
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| 239 | $.ui.sortable.prototype._mouseStop.apply(this, arguments); |
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| 240 | |
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| 241 | }, |
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| 242 | |
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| 243 | serialize: function(options) { |
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| 244 | |
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| 245 | var o = $.extend({}, this.options, options), |
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| 246 | items = this._getItemsAsjQuery(o && o.connected), |
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| 247 | str = []; |
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| 248 | |
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| 249 | $(items).each(function() { |
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| 250 | var res = ($(o.item || this).attr(o.attribute || 'id') || '') |
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| 251 | .match(o.expression || (/(.+)[-=_](.+)/)), |
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| 252 | pid = ($(o.item || this).parent(o.listType) |
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| 253 | .parent(o.items) |
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| 254 | .attr(o.attribute || 'id') || '') |
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| 255 | .match(o.expression || (/(.+)[-=_](.+)/)); |
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| 256 | |
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| 257 | if (res) { |
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| 258 | str.push(((o.key || res[1]) + '[' + (o.key && o.expression ? res[1] : res[2]) + ']') |
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| 259 | + '=' |
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| 260 | + (pid ? (o.key && o.expression ? pid[1] : pid[2]) : o.rootID)); |
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| 261 | } |
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| 262 | }); |
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| 263 | |
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| 264 | if(!str.length && o.key) { |
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| 265 | str.push(o.key + '='); |
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| 266 | } |
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| 267 | |
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| 268 | return str.join('&'); |
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| 269 | |
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| 270 | }, |
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| 271 | |
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| 272 | toHierarchy: function(options) { |
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| 273 | |
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| 274 | var o = $.extend({}, this.options, options), |
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| 275 | sDepth = o.startDepthCount || 0, |
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| 276 | ret = []; |
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| 277 | |
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| 278 | $(this.element).children(o.items).each(function () { |
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| 279 | var level = _recursiveItems(this); |
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| 280 | ret.push(level); |
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| 281 | }); |
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| 282 | |
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| 283 | return ret; |
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| 284 | |
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| 285 | function _recursiveItems(item) { |
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| 286 | var id = ($(item).attr(o.attribute || 'id') || '').match(o.expression || (/(.+)[-=_](.+)/)); |
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| 287 | if (id) { |
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| 288 | var currentItem = {"id" : id[2]}; |
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| 289 | if ($(item).children(o.listType).children(o.items).length > 0) { |
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| 290 | currentItem.children = []; |
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| 291 | $(item).children(o.listType).children(o.items).each(function() { |
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| 292 | var level = _recursiveItems(this); |
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| 293 | currentItem.children.push(level); |
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| 294 | }); |
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| 295 | } |
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| 296 | return currentItem; |
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| 297 | } |
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| 298 | } |
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| 299 | }, |
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| 300 | |
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| 301 | toArray: function(options) { |
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| 302 | |
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| 303 | var o = $.extend({}, this.options, options), |
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| 304 | sDepth = o.startDepthCount || 0, |
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| 305 | ret = [], |
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| 306 | left = 2; |
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| 307 | |
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| 308 | ret.push({ |
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| 309 | "item_id": o.rootID, |
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| 310 | "parent_id": 'none', |
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| 311 | "depth": sDepth, |
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| 312 | "left": '1', |
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| 313 | "right": ($(o.items, this.element).length + 1) * 2 |
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| 314 | }); |
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| 315 | |
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| 316 | $(this.element).children(o.items).each(function () { |
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| 317 | left = _recursiveArray(this, sDepth + 1, left); |
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| 318 | }); |
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| 319 | |
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| 320 | ret = ret.sort(function(a,b){ return (a.left - b.left); }); |
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| 321 | |
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| 322 | return ret; |
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| 323 | |
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| 324 | function _recursiveArray(item, depth, left) { |
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| 325 | |
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| 326 | var right = left + 1, |
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| 327 | id, |
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| 328 | pid; |
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| 329 | |
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| 330 | if ($(item).children(o.listType).children(o.items).length > 0) { |
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| 331 | depth ++; |
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| 332 | $(item).children(o.listType).children(o.items).each(function () { |
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| 333 | right = _recursiveArray($(this), depth, right); |
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| 334 | }); |
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| 335 | depth --; |
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| 336 | } |
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| 337 | |
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| 338 | id = ($(item).attr(o.attribute || 'id')).match(o.expression || (/(.+)[-=_](.+)/)); |
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| 339 | |
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| 340 | if (depth === sDepth + 1) { |
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| 341 | pid = o.rootID; |
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| 342 | } else { |
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| 343 | var parentItem = ($(item).parent(o.listType) |
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| 344 | .parent(o.items) |
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| 345 | .attr(o.attribute || 'id')) |
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| 346 | .match(o.expression || (/(.+)[-=_](.+)/)); |
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| 347 | pid = parentItem[2]; |
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| 348 | } |
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| 349 | |
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| 350 | if (id) { |
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| 351 | ret.push({"item_id": id[2], "parent_id": pid, "depth": depth, "left": left, "right": right}); |
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| 352 | } |
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| 353 | |
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| 354 | left = right + 1; |
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| 355 | return left; |
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| 356 | } |
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| 357 | |
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| 358 | }, |
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| 359 | |
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| 360 | _clearEmpty: function(item) { |
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| 361 | |
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| 362 | var emptyList = $(item).children(this.options.listType); |
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| 363 | if (emptyList.length && !emptyList.children().length && !this.options.doNotClear) { |
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| 364 | emptyList.remove(); |
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| 365 | } |
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| 366 | |
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| 367 | }, |
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| 368 | |
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| 369 | _getLevel: function(item) { |
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| 370 | |
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| 371 | var level = 1; |
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| 372 | |
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| 373 | if (this.options.listType) { |
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| 374 | var list = item.closest(this.options.listType); |
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| 375 | while (list && list.length > 0 && |
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| 376 | !list.is('.ui-sortable')) { |
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| 377 | level++; |
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| 378 | list = list.parent().closest(this.options.listType); |
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| 379 | } |
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| 380 | } |
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| 381 | |
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| 382 | return level; |
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| 383 | }, |
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| 384 | |
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| 385 | _getChildLevels: function(parent, depth) { |
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| 386 | var self = this, |
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| 387 | o = this.options, |
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| 388 | result = 0; |
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| 389 | depth = depth || 0; |
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| 390 | |
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| 391 | $(parent).children(o.listType).children(o.items).each(function (index, child) { |
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| 392 | result = Math.max(self._getChildLevels(child, depth + 1), result); |
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| 393 | }); |
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| 394 | |
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| 395 | return depth ? result + 1 : result; |
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| 396 | }, |
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| 397 | |
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| 398 | _isAllowed: function(parentItem, level, levels) { |
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| 399 | var o = this.options, |
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| 400 | isRoot = $(this.domPosition.parent).hasClass('ui-sortable') ? true : false, |
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| 401 | maxLevels = this.placeholder.closest('.ui-sortable').nestedSortable('option', 'maxLevels'); // this takes into account the maxLevels set to the recipient list |
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| 402 | |
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| 403 | // Is the root protected? |
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| 404 | // Are we trying to nest under a no-nest? |
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| 405 | // Are we nesting too deep? |
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| 406 | if (!o.isAllowed(this.currentItem, parentItem) || |
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| 407 | parentItem && parentItem.hasClass(o.disableNesting) || |
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| 408 | o.protectRoot && (parentItem == null && !isRoot || isRoot && level > 1)) { |
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| 409 | this.placeholder.addClass(o.errorClass); |
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| 410 | if (maxLevels < levels && maxLevels != 0) { |
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| 411 | this.beyondMaxLevels = levels - maxLevels; |
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| 412 | } else { |
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| 413 | this.beyondMaxLevels = 1; |
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| 414 | } |
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| 415 | } else { |
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| 416 | if (maxLevels < levels && maxLevels != 0) { |
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| 417 | this.placeholder.addClass(o.errorClass); |
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| 418 | this.beyondMaxLevels = levels - maxLevels; |
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| 419 | } else { |
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| 420 | this.placeholder.removeClass(o.errorClass); |
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| 421 | this.beyondMaxLevels = 0; |
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| 422 | } |
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| 423 | } |
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| 424 | } |
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| 425 | |
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| 426 | })); |
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| 427 | |
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| 428 | $.mjs.nestedSortable.prototype.options = $.extend({}, $.ui.sortable.prototype.options, $.mjs.nestedSortable.prototype.options); |
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| 429 | })(jQuery); |
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