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575 lines
20 KiB
JavaScript
Executable File
575 lines
20 KiB
JavaScript
Executable File
/*! UIkit 2.9.0 | http://www.getuikit.com | (c) 2014 YOOtheme | MIT License */
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/*
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* Based on Nestable jQuery Plugin - Copyright (c) 2012 David Bushell - http://dbushell.com/
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*/
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(function(addon) {
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var component;
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if (jQuery && jQuery.UIkit) {
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component = addon(jQuery, jQuery.UIkit);
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}
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if (typeof define == "function" && define.amd) {
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define("uikit-nestable", ["uikit"], function(){
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return component || addon(jQuery, jQuery.UIkit);
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});
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}
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})(function($, UI) {
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var hasTouch = 'ontouchstart' in window,
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html = $("html"),
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touchedlists = [],
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$win = UI.$win;
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/**
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* Detect CSS pointer-events property
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* events are normally disabled on the dragging element to avoid conflicts
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* https://github.com/ausi/Feature-detection-technique-for-pointer-events/blob/master/modernizr-pointerevents.js
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*/
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var hasPointerEvents = (function() {
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var el = document.createElement('div'), docEl = document.documentElement;
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if (!('pointerEvents' in el.style)) {
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return false;
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}
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el.style.pointerEvents = 'auto';
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el.style.pointerEvents = 'x';
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docEl.appendChild(el);
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var supports = window.getComputedStyle && window.getComputedStyle(el, '').pointerEvents === 'auto';
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docEl.removeChild(el);
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return !!supports;
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})();
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var eStart = hasTouch ? 'touchstart' : 'mousedown',
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eMove = hasTouch ? 'touchmove' : 'mousemove',
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eEnd = hasTouch ? 'touchend' : 'mouseup',
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eCancel = hasTouch ? 'touchcancel' : 'mouseup';
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UI.component('nestable', {
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defaults: {
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prefix : 'uk',
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listNodeName : 'ul',
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itemNodeName : 'li',
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listBaseClass : '{prefix}-nestable',
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listClass : '{prefix}-nestable-list',
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listitemClass : '{prefix}-nestable-list-item',
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itemClass : '{prefix}-nestable-item',
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dragClass : '{prefix}-nestable-list-dragged',
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movingClass : '{prefix}-nestable-moving',
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handleClass : '{prefix}-nestable-handle',
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collapsedClass : '{prefix}-collapsed',
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placeClass : '{prefix}-nestable-placeholder',
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noDragClass : '{prefix}-nestable-nodrag',
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emptyClass : '{prefix}-nestable-empty',
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group : 0,
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maxDepth : 10,
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threshold : 20
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},
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init: function()
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{
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var $this = this;
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Object.keys(this.options).forEach(function(key){
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if(String($this.options[key]).indexOf('{prefix}')!=-1) {
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$this.options[key] = $this.options[key].replace('{prefix}', $this.options.prefix);
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}
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});
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this.tplempty = '<div class="' + this.options.emptyClass + '"/>';
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this.find(">"+this.options.itemNodeName).addClass(this.options.listitemClass)
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.end()
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.find("ul:not(.ignore-list)").addClass(this.options.listClass)
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.find(">li").addClass(this.options.listitemClass);
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if (!this.element.children(this.options.itemNodeName).length) {
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this.element.append(this.tplempty);
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}
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this.element.data("nestable-id", "ID"+(new Date().getTime())+"RAND"+(Math.ceil(Math.random() *100000)));
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this.reset();
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this.element.data('nestable-group', this.options.group);
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this.placeEl = $('<div class="' + this.options.placeClass + '"/>');
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this.find(this.options.itemNodeName).each(function() {
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$this.setParent($(this));
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});
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this.on('click', '[data-nestable-action]', function(e) {
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if ($this.dragEl || (!hasTouch && e.button !== 0)) {
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return;
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}
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e.preventDefault();
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var target = $(e.currentTarget),
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action = target.data('nestableAction'),
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item = target.closest($this.options.itemNodeName);
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if (action === 'collapse') {
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$this.collapseItem(item);
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}
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if (action === 'expand') {
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$this.expandItem(item);
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}
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if (action === 'toggle') {
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$this.toggleItem(item);
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}
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});
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var onStartEvent = function(e) {
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var handle = $(e.target);
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if (!handle.hasClass($this.options.handleClass)) {
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if (handle.closest('.' + $this.options.noDragClass).length) {
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return;
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}
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handle = handle.closest('.' + $this.options.handleClass);
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}
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if (!handle.length || $this.dragEl || (!hasTouch && e.button !== 0) || (hasTouch && e.touches.length !== 1)) {
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return;
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}
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e.preventDefault();
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$this.dragStart(hasTouch ? e.touches[0] : e);
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$this.trigger('nestable-start', [$this]);
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};
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var onMoveEvent = function(e) {
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if ($this.dragEl) {
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e.preventDefault();
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$this.dragMove(hasTouch ? e.touches[0] : e);
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$this.trigger('nestable-move', [$this]);
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}
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};
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var onEndEvent = function(e) {
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if ($this.dragEl) {
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e.preventDefault();
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$this.dragStop(hasTouch ? e.touches[0] : e);
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$this.trigger('nestable-stop', [$this]);
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}
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};
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if (hasTouch) {
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this.element[0].addEventListener(eStart, onStartEvent, false);
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window.addEventListener(eMove, onMoveEvent, false);
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window.addEventListener(eEnd, onEndEvent, false);
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window.addEventListener(eCancel, onEndEvent, false);
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} else {
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this.on(eStart, onStartEvent);
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$win.on(eMove, onMoveEvent);
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$win.on(eEnd, onEndEvent);
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}
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},
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serialize: function() {
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var data,
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depth = 0,
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list = this;
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step = function(level, depth) {
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var array = [ ], items = level.children(list.options.itemNodeName);
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items.each(function() {
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var li = $(this),
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item = $.extend({}, li.data()),
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sub = li.children(list.options.listNodeName);
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if (sub.length) {
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item.children = step(sub, depth + 1);
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}
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array.push(item);
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});
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return array;
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};
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data = step(list.element, depth);
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return data;
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},
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list: function(options) {
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var data = [],
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list = this,
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depth = 0,
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options = $.extend({}, list.options, options),
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step = function(level, depth, parent) {
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var items = level.children(options.itemNodeName);
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items.each(function(index) {
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var li = $(this),
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item = $.extend({parent_id: (parent ? parent : null), depth: depth, order: index}, li.data()),
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sub = li.children(options.listNodeName);
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data.push(item);
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if (sub.length) {
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step(sub, depth + 1, li.data(options.idProperty || 'id'));
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}
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});
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};
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step(list.element, depth);
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return data;
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},
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reset: function() {
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this.mouse = {
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offsetX : 0,
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offsetY : 0,
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startX : 0,
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startY : 0,
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lastX : 0,
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lastY : 0,
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nowX : 0,
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nowY : 0,
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distX : 0,
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distY : 0,
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dirAx : 0,
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dirX : 0,
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dirY : 0,
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lastDirX : 0,
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lastDirY : 0,
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distAxX : 0,
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distAxY : 0
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};
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this.moving = false;
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this.dragEl = null;
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this.dragRootEl = null;
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this.dragDepth = 0;
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this.hasNewRoot = false;
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this.pointEl = null;
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for (var i=0; i<touchedlists.length; i++) {
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if (!touchedlists[i].children().length) {
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touchedlists[i].append(this.tplempty);
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}
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}
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touchedlists = [];
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},
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toggleItem: function(li) {
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this[li.hasClass(this.options.collapsedClass) ? "expandItem":"collapseItem"](li);
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},
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expandItem: function(li) {
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li.removeClass(this.options.collapsedClass);
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},
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collapseItem: function(li) {
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var lists = li.children(this.options.listNodeName);
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if (lists.length) {
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li.addClass(this.options.collapsedClass);
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}
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},
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expandAll: function() {
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var list = this;
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this.find(list.options.itemNodeName).each(function() {
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list.expandItem($(this));
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});
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},
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collapseAll: function() {
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var list = this;
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this.find(list.options.itemNodeName).each(function() {
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list.collapseItem($(this));
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});
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},
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setParent: function(li) {
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if (li.children(this.options.listNodeName).length) {
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li.addClass("uk-parent");
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}
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},
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unsetParent: function(li) {
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li.removeClass('uk-parent '+this.options.collapsedClass);
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li.children(this.options.listNodeName).remove();
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},
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dragStart: function(e) {
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var mouse = this.mouse,
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target = $(e.target),
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dragItem = target.closest(this.options.itemNodeName),
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offset = dragItem.offset();
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this.placeEl.css('height', dragItem.height());
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mouse.offsetX = e.pageX - offset.left;
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mouse.offsetY = e.pageY - offset.top;
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mouse.startX = mouse.lastX = offset.left;
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mouse.startY = mouse.lastY = offset.top;
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this.dragRootEl = this.element;
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this.dragEl = $(document.createElement(this.options.listNodeName)).addClass(this.options.listClass + ' ' + this.options.dragClass);
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this.dragEl.css('width', dragItem.width());
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this.tmpDragOnSiblings = [dragItem[0].previousSibling, dragItem[0].nextSibling];
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// fix for zepto.js
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//dragItem.after(this.placeEl).detach().appendTo(this.dragEl);
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dragItem.after(this.placeEl);
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dragItem[0].parentNode.removeChild(dragItem[0]);
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dragItem.appendTo(this.dragEl);
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$(document.body).append(this.dragEl);
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this.dragEl.css({
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left : offset.left,
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top : offset.top
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});
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// total depth of dragging item
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var i, depth,
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items = this.dragEl.find(this.options.itemNodeName);
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for (i = 0; i < items.length; i++) {
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depth = $(items[i]).parents(this.options.listNodeName).length;
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if (depth > this.dragDepth) {
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this.dragDepth = depth;
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}
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}
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html.addClass(this.options.movingClass);
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},
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dragStop: function(e) {
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// fix for zepto.js
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//this.placeEl.replaceWith(this.dragEl.children(this.options.itemNodeName + ':first').detach());
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var el = this.dragEl.children(this.options.itemNodeName).first();
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el[0].parentNode.removeChild(el[0]);
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this.placeEl.replaceWith(el);
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this.dragEl.remove();
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if (this.tmpDragOnSiblings[0]!=el[0].previousSibling || this.tmpDragOnSiblings[0]!=el[0].previousSibling) {
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this.element.trigger('nestable-change',[el, this.hasNewRoot ? "added":"moved"]);
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if (this.hasNewRoot) {
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this.dragRootEl.trigger('nestable-change', [el, "removed"]);
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}
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}
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this.reset();
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html.removeClass(this.options.movingClass);
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},
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dragMove: function(e) {
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var list, parent, prev, next, depth,
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opt = this.options,
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mouse = this.mouse;
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this.dragEl.css({
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left : e.pageX - mouse.offsetX,
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top : e.pageY - mouse.offsetY
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});
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// mouse position last events
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mouse.lastX = mouse.nowX;
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mouse.lastY = mouse.nowY;
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// mouse position this events
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mouse.nowX = e.pageX;
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mouse.nowY = e.pageY;
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// distance mouse moved between events
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mouse.distX = mouse.nowX - mouse.lastX;
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mouse.distY = mouse.nowY - mouse.lastY;
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// direction mouse was moving
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mouse.lastDirX = mouse.dirX;
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mouse.lastDirY = mouse.dirY;
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// direction mouse is now moving (on both axis)
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mouse.dirX = mouse.distX === 0 ? 0 : mouse.distX > 0 ? 1 : -1;
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mouse.dirY = mouse.distY === 0 ? 0 : mouse.distY > 0 ? 1 : -1;
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// axis mouse is now moving on
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var newAx = Math.abs(mouse.distX) > Math.abs(mouse.distY) ? 1 : 0;
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// do nothing on first move
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if (!mouse.moving) {
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mouse.dirAx = newAx;
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mouse.moving = true;
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return;
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}
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// calc distance moved on this axis (and direction)
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if (mouse.dirAx !== newAx) {
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mouse.distAxX = 0;
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mouse.distAxY = 0;
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} else {
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mouse.distAxX += Math.abs(mouse.distX);
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if (mouse.dirX !== 0 && mouse.dirX !== mouse.lastDirX) {
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mouse.distAxX = 0;
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}
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mouse.distAxY += Math.abs(mouse.distY);
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if (mouse.dirY !== 0 && mouse.dirY !== mouse.lastDirY) {
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mouse.distAxY = 0;
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}
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}
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mouse.dirAx = newAx;
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/**
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* move horizontal
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*/
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if (mouse.dirAx && mouse.distAxX >= opt.threshold) {
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// reset move distance on x-axis for new phase
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mouse.distAxX = 0;
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prev = this.placeEl.prev(opt.itemNodeName);
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// increase horizontal level if previous sibling exists and is not collapsed
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if (mouse.distX > 0 && prev.length && !prev.hasClass(opt.collapsedClass)) {
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// cannot increase level when item above is collapsed
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list = prev.find(opt.listNodeName).last();
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// check if depth limit has reached
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depth = this.placeEl.parents(opt.listNodeName).length;
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if (depth + this.dragDepth <= opt.maxDepth) {
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// create new sub-level if one doesn't exist
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if (!list.length) {
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list = $('<' + opt.listNodeName + '/>').addClass(opt.listClass);
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list.append(this.placeEl);
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prev.append(list);
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this.setParent(prev);
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} else {
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// else append to next level up
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list = prev.children(opt.listNodeName).last();
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list.append(this.placeEl);
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}
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}
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}
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// decrease horizontal level
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if (mouse.distX < 0) {
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// we can't decrease a level if an item preceeds the current one
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next = this.placeEl.next(opt.itemNodeName);
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if (!next.length) {
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parent = this.placeEl.parent();
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this.placeEl.closest(opt.itemNodeName).after(this.placeEl);
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if (!parent.children().length) {
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this.unsetParent(parent.parent());
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}
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}
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}
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}
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var isEmpty = false;
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// find list item under cursor
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if (!hasPointerEvents) {
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this.dragEl[0].style.visibility = 'hidden';
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}
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this.pointEl = $(document.elementFromPoint(e.pageX - document.body.scrollLeft, e.pageY - (window.pageYOffset || document.documentElement.scrollTop)));
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if (!hasPointerEvents) {
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this.dragEl[0].style.visibility = 'visible';
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}
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if (this.pointEl.hasClass(opt.handleClass)) {
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this.pointEl = this.pointEl.closest(opt.itemNodeName);
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} else {
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var nestableitem = this.pointEl.closest('.'+opt.itemClass);
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if(nestableitem.length) {
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this.pointEl = nestableitem.closest(opt.itemNodeName);
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}
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}
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if (this.pointEl.hasClass(opt.emptyClass)) {
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isEmpty = true;
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} else if (this.pointEl.data('nestable') && !this.pointEl.children().length) {
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isEmpty = true;
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this.pointEl = $(this.tplempty).appendTo(this.pointEl);
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} else if (!this.pointEl.length || !this.pointEl.hasClass(opt.listitemClass)) {
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return;
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}
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// find parent list of item under cursor
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var pointElRoot = this.element,
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tmpRoot = this.pointEl.closest('.'+this.options.listBaseClass),
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isNewRoot = pointElRoot[0] !== this.pointEl.closest('.'+this.options.listBaseClass)[0],
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$newRoot = tmpRoot;
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/**
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* move vertical
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*/
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if (!mouse.dirAx || isNewRoot || isEmpty) {
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// check if groups match if dragging over new root
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if (isNewRoot && opt.group !== $newRoot.data('nestable-group')) {
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return;
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} else {
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touchedlists.push(pointElRoot);
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}
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// check depth limit
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depth = this.dragDepth - 1 + this.pointEl.parents(opt.listNodeName).length;
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if (depth > opt.maxDepth) {
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return;
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}
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var before = e.pageY < (this.pointEl.offset().top + this.pointEl.height() / 2);
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parent = this.placeEl.parent();
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// if empty create new list to replace empty placeholder
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if (isEmpty) {
|
|
this.pointEl.replaceWith(this.placeEl);
|
|
} else if (before) {
|
|
this.pointEl.before(this.placeEl);
|
|
} else {
|
|
this.pointEl.after(this.placeEl);
|
|
}
|
|
|
|
if (!parent.children().length) {
|
|
if(!parent.data("nestable")) this.unsetParent(parent.parent());
|
|
}
|
|
|
|
if (!this.dragRootEl.find(opt.itemNodeName).length && !this.dragRootEl.children().length) {
|
|
this.dragRootEl.append(this.tplempty);
|
|
}
|
|
|
|
// parent root list has changed
|
|
if (isNewRoot) {
|
|
this.dragRootEl = tmpRoot;
|
|
this.hasNewRoot = this.element[0] !== this.dragRootEl[0];
|
|
}
|
|
}
|
|
}
|
|
|
|
});
|
|
|
|
// init code
|
|
UI.ready(function(context) {
|
|
|
|
$("[data-uk-nestable]", context).each(function(){
|
|
|
|
var ele = $(this);
|
|
|
|
if(!ele.data("nestable")) {
|
|
var plugin = UI.nestable(ele, UI.Utils.options(ele.attr("data-uk-nestable")));
|
|
}
|
|
});
|
|
});
|
|
|
|
return UI.nestable;
|
|
}); |