/* - dragdropreorder.js - */
// http://www.linke-frankfurt.de/portal_javascripts/dragdropreorder.js?original=1
var ploneDnDReorder={};ploneDnDReorder.dragging=null;ploneDnDReorder.table=null;ploneDnDReorder.rows=null;ploneDnDReorder.locked=false;(function($){ploneDnDReorder.doDown=function(e){var dragging=ploneDnDReorder.dragging,body;if(ploneDnDReorder.locked){return}
if(dragging){if($(this).attr('id')!==dragging.attr('id')){ploneDnDReorder.locked=true;dragging.removeClass('dragging').addClass('error')}
return}
dragging=$(this).parents('.draggable:first');if(!dragging.length){return}
ploneDnDReorder.rows.mousemove(ploneDnDReorder.doDrag);body=$('body');body.mouseup(ploneDnDReorder.doUp);body.mouseleave(ploneDnDReorder.doCancel);ploneDnDReorder.dragging=dragging;dragging.data('ploneDnDReorder.startPosition',ploneDnDReorder.getPos(dragging));dragging.addClass("dragging");$(this).parents('tr').addClass('dragindicator');dragging.data('ploneDnDReorder.subset_ids',$.map(ploneDnDReorder.table.find('tr.draggable'),
function(elem){return $(elem).attr('id').substr('folder-contents-item-'.length)}));return false};ploneDnDReorder.getPos=function(node){var pos=node.parent().children('.draggable').index(node[0]);return pos===-1?null:pos};ploneDnDReorder.doDrag=function(e){var dragging=ploneDnDReorder.dragging,target=this;if(!dragging){return}
if(!target){return}
if($(target).attr('id')!==dragging.attr('id')){ploneDnDReorder.swapElements($(target),dragging)}
return false};ploneDnDReorder.swapElements=function(child1,child2){var parent=child1.parent(),items=parent.children('[id]'),t;if(Math.abs(ploneDnDReorder.getPos(child1)-ploneDnDReorder.getPos(child2))!==1){return}
items.removeClass('even').removeClass('odd');if(child1[0].swapNode){child1[0].swapNode(child2[0])} else{t=parent[0].insertBefore(document.createTextNode(''),child1[0]);child1.insertBefore(child2);child2.insertBefore(t);$(t).remove()}
parent.children('[id]:odd').addClass('even');parent.children('[id]:even').addClass('odd')};ploneDnDReorder.doUp=function(e){var dragging=ploneDnDReorder.dragging,body=$('body');if(!dragging){return}
ploneDnDReorder.updatePositionOnServer();dragging.removeData('ploneDnDReorder.startPosition');dragging.removeData('ploneDnDReorder.subset_ids');ploneDnDReorder.rows.unbind('mousemove',ploneDnDReorder.doDrag);body.unbind('mouseup',ploneDnDReorder.doUp);body.unbind('mouseleave',ploneDnDReorder.doCancel);$(this).parents('tr').removeClass('dragindicator');return false};ploneDnDReorder.doCancel=function(e){var dragging=ploneDnDReorder.dragging,body=$('body');if(!dragging){return}
dragging.removeClass("dragging")
if(ploneDnDReorder.getPos(dragging)-dragging.data('ploneDnDReorder.startPosition')){ploneDnDReorder.locked=true;dragging.addClass("error")}
ploneDnDReorder.rows.unbind('mousemove',ploneDnDReorder.doDrag);body.unbind('mouseup',ploneDnDReorder.doCancel);body.unbind('mouseleave',ploneDnDReorder.doCancel);ploneDnDReorder.dragging=null;return false};ploneDnDReorder.updatePositionOnServer=function(){var dragging=ploneDnDReorder.dragging,delta,args,encoded;if(!dragging){return}
delta=ploneDnDReorder.getPos(dragging)-dragging.data('ploneDnDReorder.startPosition');if(delta===0){return}
args={item_id:dragging.attr('id').substr('folder-contents-item-'.length),subset_ids:dragging.data('ploneDnDReorder.subset_ids')};args['delta:int']=delta;encoded=$.param(args).replace(/%5B%5D=/g,'%3Alist=');$.ajax({type:'POST',url:'folder_moveitem',data:encoded,complete:ploneDnDReorder.complete});ploneDnDReorder.locked=true};ploneDnDReorder.complete=function(xhr,textStatus){var dragging=ploneDnDReorder.dragging;dragging.removeClass("dragging");if(textStatus==="success"||textStatus==="notmodified"){ploneDnDReorder.locked=false} else{dragging.addClass("error")}
ploneDnDReorder.dragging=null}}(jQuery));