Editing: jquery.nestable.min.js

!function(t,e,s,i){function o(e,o){this.w=t(s),this.el=t(e),(o=o||a).rootClass!==i&&"dd"!==o.rootClass&&(o.listClass=o.listClass?o.listClass:o.rootClass+"-list",o.itemClass=o.itemClass?o.itemClass:o.rootClass+"-item",o.dragClass=o.dragClass?o.dragClass:o.rootClass+"-dragel",o.handleClass=o.handleClass?o.handleClass:o.rootClass+"-handle",o.collapsedClass=o.collapsedClass?o.collapsedClass:o.rootClass+"-collapsed",o.placeClass=o.placeClass?o.placeClass:o.rootClass+"-placeholder",o.noDragClass=o.noDragClass?o.noDragClass:o.rootClass+"-nodrag",o.noChildrenClass=o.noChildrenClass?o.noChildrenClass:o.rootClass+"-nochildren",o.emptyClass=o.emptyClass?o.emptyClass:o.rootClass+"-empty"),this.options=t.extend({},a,o),this.options.json!==i&&this._build(),this.init()}var n="ontouchstart"in s,l=function(){var t=s.createElement("div"),i=s.documentElement;if(!("pointerEvents"in t.style))return!1;t.style.pointerEvents="auto",t.style.pointerEvents="x",i.appendChild(t);var o=e.getComputedStyle&&"auto"===e.getComputedStyle(t,"").pointerEvents;return i.removeChild(t),!!o}(),a={contentCallback:function(t){return t.content?t.content:t.id},listNodeName:"ol",itemNodeName:"li",handleNodeName:"div",contentNodeName:"span",rootClass:"dd",listClass:"dd-list",itemClass:"dd-item",dragClass:"dd-dragel",handleClass:"dd-handle",contentClass:"dd-content",collapsedClass:"dd-collapsed",placeClass:"dd-placeholder",noDragClass:"dd-nodrag",noChildrenClass:"dd-nochildren",emptyClass:"dd-empty",expandBtnHTML:'<button class="dd-expand" data-action="expand" type="button">Expand</button>',collapseBtnHTML:'<button class="dd-collapse" data-action="collapse" type="button">Collapse</button>',group:0,maxDepth:5,threshold:20,fixedDepth:!1,fixed:!1,includeContent:!1,scroll:!1,scrollSensitivity:1,scrollSpeed:5,scrollTriggers:{top:40,left:40,right:-40,bottom:-40},effect:{animation:"none",time:"slow"},callback:function(t,e,s){},onDragStart:function(t,e,s){},beforeDragStop:function(t,e,s){},listRenderer:function(t,e){var s="<"+e.listNodeName+' class="'+e.listClass+'">';return s+=t,s+="</"+e.listNodeName+">"},itemRenderer:function(e,s,i,o,n){var l=t.map(e,function(t,e){return" "+e+'="'+t+'"'}).join(" "),a="<"+o.itemNodeName+l+">";return a+="<"+o.handleNodeName+' class="'+o.handleClass+'">',a+="<"+o.contentNodeName+' class="'+o.contentClass+'">',a+=s,a+="</"+o.contentNodeName+">",a+="</"+o.handleNodeName+">",a+=i,a+="</"+o.itemNodeName+">"}};o.prototype={init:function(){var s=this;s.reset(),s.el.data("nestable-group",this.options.group),s.placeEl=t('<div class="'+s.options.placeClass+'"/>');var i=this.el.find(s.options.itemNodeName);t.each(i,function(e,i){var o=t(i),n=o.parent();s.setParent(o),n.hasClass(s.options.collapsedClass)&&s.collapseItem(n.parent())}),i.length||this.appendEmptyElement(this.el),s.el.on("click","button",function(e){if(!s.dragEl){var i=t(e.currentTarget),o=i.data("action"),n=i.parents(s.options.itemNodeName).eq(0);"collapse"===o&&s.collapseItem(n),"expand"===o&&s.expandItem(n)}});var o=function(e){var i=t(e.target);if(!i.hasClass(s.options.handleClass)){if(i.closest("."+s.options.noDragClass).length)return;i=i.closest("."+s.options.handleClass)}i.length&&!s.dragEl&&(s.isTouch=/^touch/.test(e.type),s.isTouch&&1!==e.touches.length||(e.preventDefault(),s.dragStart(e.touches?e.touches[0]:e)))},l=function(t){s.dragEl&&(t.preventDefault(),s.dragMove(t.touches?t.touches[0]:t))},a=function(t){s.dragEl&&(t.preventDefault(),s.dragStop(t.touches?t.changedTouches[0]:t))};n&&(s.el[0].addEventListener("touchstart",o,!1),e.addEventListener("touchmove",l,!1),e.addEventListener("touchend",a,!1),e.addEventListener("touchcancel",a,!1)),s.el.on("mousedown",o),s.w.on("mousemove",l),s.w.on("mouseup",a);s.el.bind("destroy-nestable",function(){n&&(s.el[0].removeEventListener("touchstart",o,!1),e.removeEventListener("touchmove",l,!1),e.removeEventListener("touchend",a,!1),e.removeEventListener("touchcancel",a,!1)),s.el.off("mousedown",o),s.w.off("mousemove",l),s.w.off("mouseup",a),s.el.off("click"),s.el.unbind("destroy-nestable"),s.el.data("nestable",null)})},destroy:function(){this.el.trigger("destroy-nestable")},add:function(e){var s="."+this.options.listClass,o=t(this.el).children(s);e.parent_id!==i&&(o=o.find('[data-id="'+e.parent_id+'"]'),delete e.parent_id,0===o.children(s).length&&(o=o.append(this.options.listRenderer("",this.options))),o=o.find(s+":first"),this.setParent(o.parent())),o.append(this._buildItem(e,this.options))},replace:function(t){var e=this._buildItem(t,this.options);this._getItemById(t.id).replaceWith(e)},removeItem:function(e){var s=this.options,i=this.el;(e=e||this).remove();var o="."+s.listClass+" ."+s.listClass+":not(:has(*))";t(i).find(o).remove();t(i).find('[data-action="expand"], [data-action="collapse"]').each(function(){0===t(this).siblings("."+s.listClass).length&&t(this).remove()})},remove:function(t,e){var s=this.options,i=this,o=this._getItemById(t),n=s.effect.animation||"fade",l=s.effect.time||"slow";"fade"===n?o.fadeOut(l,function(){i.removeItem(o)}):this.removeItem(o),e&&e()},removeAll:function(e){function s(){l.each(function(){i.removeItem(t(this))}),n.show(),e&&e()}var i=this,o=this.options,n=i.el.find(o.listNodeName).first(),l=n.children(o.itemNodeName),a=o.effect.animation||"fade",r=o.effect.time||"slow";"fade"===a?n.fadeOut(r,s):s()},_getItemById:function(e){return t(this.el).children("."+this.options.listClass).find('[data-id="'+e+'"]')},_build:function(){var e=this.options.json;"string"==typeof e&&(e=JSON.parse(e)),t(this.el).html(this._buildList(e,this.options))},_buildList:function(e,s){if(!e)return"";var i="",o=this;return t.each(e,function(t,e){i+=o._buildItem(e,s)}),s.listRenderer(i,s)},_buildItem:function(e,s){function i(t){var e={"&":"&amp;","<":"&lt;",">":"&gt;",'"':"&quot;","'":"&#039;"};return t+"".replace(/[&<>"']/g,function(t){return e[t]})}function o(t){var e={};for(var s in t)e[t[s]]=t[s];return e}var n=function(e){delete(e=t.extend({},e)).children,delete e.classes,delete e.content;var s={};return t.each(e,function(t,e){"object"==typeof e&&(e=JSON.stringify(e)),s["data-"+t]=i(e)}),s}(e);n.class=function(e,s){var i=e.classes||{};"string"==typeof i&&(i=[i]);var n=o(i);return n[s.itemClass]=s.itemClass,t.map(n,function(t){return t}).join(" ")}(e,s);var l=s.contentCallback(e),a=this._buildList(e.children,s),r=t(s.itemRenderer(n,l,a,s,e));return this.setParent(r),r[0].outerHTML},serialize:function(){var e=this,s=function(i){var o=[];return i.children(e.options.itemNodeName).each(function(){var i=t(this),n=t.extend({},i.data()),l=i.children(e.options.listNodeName);if(e.options.includeContent){var a=i.find("."+e.options.contentClass).html();a&&(n.content=a)}l.length&&(n.children=s(l)),o.push(n)}),o};return s(e.el.find(e.options.listNodeName).first())},asNestedSet:function(){function e(i,l,a){var r,d,h=a+1;return t(i).children(o.listNodeName).children(o.itemNodeName).length>0&&(l++,t(i).children(o.listNodeName).children(o.itemNodeName).each(function(){h=e(t(this),l,h)}),l--),r=t(i).attr("data-id"),s(r)&&(r=parseInt(r)),d=t(i).parent(o.listNodeName).parent(o.itemNodeName).attr("data-id")||"",s(d)&&(r=parseInt(d)),r&&n.push({id:r,parent_id:d,depth:l,lft:a,rgt:h}),a=h+1}function s(e){return t.isNumeric(e)&&Math.floor(e)==e}var i=this,o=i.options,n=[],l=1;return i.el.find(o.listNodeName).first().children(o.itemNodeName).each(function(){l=e(this,0,l)}),n=n.sort(function(t,e){return t.lft-e.lft})},returnOptions:function(){return this.options},serialise:function(){return this.serialize()},toHierarchy:function(e){function s(e){var o=(t(e).attr(i.attribute||"id")||"").match(i.expression||/(.+)[-=_](.+)/);if(o){var n={id:o[2]};return t(e).children(i.listType).children(i.items).length>0&&(n.children=[],t(e).children(i.listType).children(i.items).each(function(){var t=s(this);n.children.push(t)})),n}}var i=t.extend({},this.options,e),o=[];return t(this.element).children(i.items).each(function(){var t=s(this);o.push(t)}),o},toArray:function(){function e(n,l,a){var r,d,h=a+1;return n.children(s.options.listNodeName).children(s.options.itemNodeName).length>0&&(l++,n.children(s.options.listNodeName).children(s.options.itemNodeName).each(function(){h=e(t(this),l,h)}),l--),r=n.data().id,d=l===i+1?s.rootID:n.parent(s.options.listNodeName).parent(s.options.itemNodeName).data().id,r&&o.push({id:r,parent_id:d,depth:l,left:a,right:h}),a=h+1}var s=t.extend({},this.options,this),i=s.startDepthCount||0,o=[],n=2,l=this;return l.el.find(l.options.listNodeName).first().children(l.options.itemNodeName).each(function(){n=e(t(this),i+1,n)}),o=o.sort(function(t,e){return t.left-e.left})},reset:function(){this.mouse={offsetX:0,offsetY:0,startX:0,startY:0,lastX:0,lastY:0,nowX:0,nowY:0,distX:0,distY:0,dirAx:0,dirX:0,dirY:0,lastDirX:0,lastDirY:0,distAxX:0,distAxY:0},this.isTouch=!1,this.moving=!1,this.dragEl=null,this.dragRootEl=null,this.dragDepth=0,this.hasNewRoot=!1,this.pointEl=null},expandItem:function(t){t.removeClass(this.options.collapsedClass)},collapseItem:function(t){t.children(this.options.listNodeName).length&&t.addClass(this.options.collapsedClass)},expandAll:function(){var e=this;e.el.find(e.options.itemNodeName).each(function(){e.expandItem(t(this))})},collapseAll:function(){var e=this;e.el.find(e.options.itemNodeName).each(function(){e.collapseItem(t(this))})},setParent:function(e){e.is(this.options.itemNodeName)&&e.children(this.options.listNodeName).length&&(e.children("[data-action]").remove(),e.prepend(t(this.options.expandBtnHTML)),e.prepend(t(this.options.collapseBtnHTML)))},unsetParent:function(t){t.removeClass(this.options.collapsedClass),t.children("[data-action]").remove(),t.children(this.options.listNodeName).remove()},dragStart:function(e){var i=this.mouse,o=t(e.target).closest(this.options.itemNodeName),n={top:e.pageY,left:e.pageX},l=this.options.onDragStart.call(this,this.el,o,n);if(void 0===l||!1!==l){this.placeEl.css("height",o.height()),i.offsetX=e.pageX-o.offset().left,i.offsetY=e.pageY-o.offset().top,i.startX=i.lastX=e.pageX,i.startY=i.lastY=e.pageY,this.dragRootEl=this.el,this.dragEl=t(s.createElement(this.options.listNodeName)).addClass(this.options.listClass+" "+this.options.dragClass),this.dragEl.css("width",o.outerWidth()),this.setIndexOfItem(o),o.after(this.placeEl),o[0].parentNode.removeChild(o[0]),o.appendTo(this.dragEl),t(s.body).append(this.dragEl),this.dragEl.css({left:e.pageX-i.offsetX,top:e.pageY-i.offsetY});var a,r,d=this.dragEl.find(this.options.itemNodeName);for(a=0;a<d.length;a++)(r=t(d[a]).parents(this.options.listNodeName).length)>this.dragDepth&&(this.dragDepth=r)}},createSubLevel:function(e,s){var i=t("<"+this.options.listNodeName+"/>").addClass(this.options.listClass);return s&&i.append(s),e.append(i),this.setParent(e),i},setIndexOfItem:function(e,s){(s=s||[]).unshift(e.index()),t(e[0].parentNode)[0]!==this.dragRootEl[0]?this.setIndexOfItem(t(e[0].parentNode),s):this.dragEl.data("indexOfItem",s)},restoreItemAtIndex:function(e,s){for(var i=this.el,o=s.length-1,n=0;n<s.length;n++){if(o===parseInt(n))return void function(e,i){0===s[o]?t(e).prepend(i.clone(!0)):t(e.children[s[o]-1]).after(i.clone(!0))}(i,e);var l=i[0]?i[0]:i,a=l.children[s[n]];i=a||this.createSubLevel(t(l))}},dragStop:function(t){var e={top:t.pageY,left:t.pageX},s=this.dragEl.data("indexOfItem"),i=this.dragEl.children(this.options.itemNodeName).first();i[0].parentNode.removeChild(i[0]),this.dragEl.remove();var o=this.options.beforeDragStop.call(this,this.el,i,this.placeEl.parent());if(void 0!==o&&!1===o){var n=this.placeEl.parent();return this.placeEl.remove(),n.children().length||this.unsetParent(n.parent()),this.restoreItemAtIndex(i,s),void this.reset()}this.placeEl.replaceWith(i),this.hasNewRoot?(!0===this.options.fixed?this.restoreItemAtIndex(i,s):this.el.trigger("lostItem"),this.dragRootEl.trigger("gainedItem")):this.dragRootEl.trigger("change"),this.options.callback.call(this,this.dragRootEl,i,e),this.reset()},dragMove:function(i){var o,n,a,r=this.options,d=this.mouse;this.dragEl.css({left:i.pageX-d.offsetX,top:i.pageY-d.offsetY}),d.lastX=d.nowX,d.lastY=d.nowY,d.nowX=i.pageX,d.nowY=i.pageY,d.distX=d.nowX-d.lastX,d.distY=d.nowY-d.lastY,d.lastDirX=d.dirX,d.lastDirY=d.dirY,d.dirX=0===d.distX?0:d.distX>0?1:-1,d.dirY=0===d.distY?0:d.distY>0?1:-1;var h=Math.abs(d.distX)>Math.abs(d.distY)?1:0;if(!d.moving)return d.dirAx=h,void(d.moving=!0);if(r.scroll)if(void 0!==e.jQuery.fn.scrollParent){var c=!1,p=this.el.scrollParent()[0];p!==s&&"HTML"!==p.tagName?(r.scrollTriggers.bottom+p.offsetHeight-i.pageY<r.scrollSensitivity?p.scrollTop=c=p.scrollTop+r.scrollSpeed:i.pageY-r.scrollTriggers.top<r.scrollSensitivity&&(p.scrollTop=c=p.scrollTop-r.scrollSpeed),r.scrollTriggers.right+p.offsetWidth-i.pageX<r.scrollSensitivity?p.scrollLeft=c=p.scrollLeft+r.scrollSpeed:i.pageX-r.scrollTriggers.left<r.scrollSensitivity&&(p.scrollLeft=c=p.scrollLeft-r.scrollSpeed)):(i.pageY-t(s).scrollTop()<r.scrollSensitivity?c=t(s).scrollTop(t(s).scrollTop()-r.scrollSpeed):t(e).height()-(i.pageY-t(s).scrollTop())<r.scrollSensitivity&&(c=t(s).scrollTop(t(s).scrollTop()+r.scrollSpeed)),i.pageX-t(s).scrollLeft()<r.scrollSensitivity?c=t(s).scrollLeft(t(s).scrollLeft()-r.scrollSpeed):t(e).width()-(i.pageX-t(s).scrollLeft())<r.scrollSensitivity&&(c=t(s).scrollLeft(t(s).scrollLeft()+r.scrollSpeed)))}else console.warn("To use scrolling you need to have scrollParent() function, check documentation for more information");this.scrollTimer&&clearTimeout(this.scrollTimer),r.scroll&&c&&(this.scrollTimer=setTimeout(function(){t(e).trigger(i)},10)),d.dirAx!==h?(d.distAxX=0,d.distAxY=0):(d.distAxX+=Math.abs(d.distX),0!==d.dirX&&d.dirX!==d.lastDirX&&(d.distAxX=0),d.distAxY+=Math.abs(d.distY),0!==d.dirY&&d.dirY!==d.lastDirY&&(d.distAxY=0)),d.dirAx=h,d.dirAx&&d.distAxX>=r.threshold&&(d.distAxX=0,a=this.placeEl.prev(r.itemNodeName),d.distX>0&&a.length&&!a.hasClass(r.collapsedClass)&&!a.hasClass(r.noChildrenClass)&&(o=a.find(r.listNodeName).last(),this.placeEl.parents(r.listNodeName).length+this.dragDepth<=r.maxDepth&&(o.length?(o=a.children(r.listNodeName).last()).append(this.placeEl):this.createSubLevel(a,this.placeEl))),d.distX<0&&(this.placeEl.next(r.itemNodeName).length||(n=this.placeEl.parent(),this.placeEl.closest(r.itemNodeName).after(this.placeEl),n.children().length||this.unsetParent(n.parent()))));var f=!1;if(l||(this.dragEl[0].style.visibility="hidden"),this.pointEl=t(s.elementFromPoint(i.pageX-s.body.scrollLeft,i.pageY-(e.pageYOffset||s.documentElement.scrollTop))),l||(this.dragEl[0].style.visibility="visible"),this.pointEl.hasClass(r.handleClass)&&(this.pointEl=this.pointEl.closest(r.itemNodeName)),this.pointEl.hasClass(r.emptyClass))f=!0;else if(!this.pointEl.length||!this.pointEl.hasClass(r.itemClass))return;var u=this.pointEl.closest("."+r.rootClass),m=this.dragRootEl.data("nestable-id")!==u.data("nestable-id");if(!d.dirAx||m||f){if(m&&r.group!==u.data("nestable-group"))return;if(this.options.fixedDepth&&this.dragDepth+1!==this.pointEl.parents(r.listNodeName).length)return;if(this.dragDepth-1+this.pointEl.parents(r.listNodeName).length>r.maxDepth)return;var g=i.pageY<this.pointEl.offset().top+this.pointEl.height()/2;n=this.placeEl.parent(),f?((o=t(s.createElement(r.listNodeName)).addClass(r.listClass)).append(this.placeEl),this.pointEl.replaceWith(o)):g?this.pointEl.before(this.placeEl):this.pointEl.after(this.placeEl),n.children().length||this.unsetParent(n.parent()),this.dragRootEl.find(r.itemNodeName).length||this.appendEmptyElement(this.dragRootEl),this.dragRootEl=u,m&&(this.hasNewRoot=this.el[0]!==this.dragRootEl[0])}},appendEmptyElement:function(t){t.append('<div class="'+this.options.emptyClass+'"/>')}},t.fn.nestable=function(s){var i=this,n=this,l=arguments;return"Nestable"in e||(e.Nestable={},Nestable.counter=0),i.each(function(){var e=t(this).data("nestable");if(e){if("string"==typeof s&&"function"==typeof e[s])if(l.length>1){for(var i=[],a=1;a<l.length;a++)i.push(l[a]);n=e[s].apply(e,i)}else n=e[s]()}else Nestable.counter++,t(this).data("nestable",new o(this,s)),t(this).data("nestable-id",Nestable.counter)}),n||i}}(window.jQuery||window.Zepto,window,document);