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move html elements with data
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| ul { | |
| min-height: 6em; | |
| width: 100%; | |
| text-align: center; | |
| margin:0px; | |
| display:-webkit-box; | |
| display:-moz-box; | |
| display:box; | |
| -webkit-box-orient:horizontal; | |
| -moz-box-orient:horizontal; | |
| box-orient:horizontal;} | |
| ul li { | |
| list-style-type: none; | |
| padding: 3em; | |
| -webkit-box-flex:1; | |
| -moz-box-flex:1; | |
| box-flex:1; | |
| } | |
| .bench { | |
| background-color: wheat; | |
| } | |
| .field { | |
| background-color: lightgreen; | |
| } |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>JS Bin</title> | |
| </head> | |
| <body> | |
| <ul class="field"> | |
| <li>player 0</li> | |
| </ul> | |
| <ul class="field"> | |
| <li>player 1</li> | |
| <li>player 2</li> | |
| <li>player 3</li> | |
| </ul> | |
| <ul class="field"> | |
| <li>player 4</li> | |
| <li>player 5</li> | |
| <li>player 6</li> | |
| <li >player 7</li> | |
| </ul> | |
| <ul class="field"> | |
| <li>player 8</li> | |
| <li>player 9</li> | |
| <li>player 10</li> | |
| </ul> | |
| <ul class="bench"> | |
| <li>player 11</li> | |
| </ul> | |
| <pre class="out"> | |
| </pre> | |
| </body> | |
| </html> |
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| var $ = document.querySelectorAll.bind(document); | |
| function moveable(containers, selector, dataFn) { | |
| var dragSource, | |
| dragCollection, | |
| dragTarget, | |
| dragData, | |
| data = [], | |
| elements = []; | |
| function preventDefault(event) { | |
| event.stopPropagation(); | |
| event.preventDefault(); | |
| } | |
| [].forEach.call(containers, function (container, index) { | |
| elements[index] = []; | |
| function findAndRemove(items,item) { | |
| var retval; | |
| items.forEach(function(row) { | |
| var index = row.indexOf(item); | |
| if(index > -1) { | |
| retval = row.splice(index, 1)[0]; | |
| } | |
| }); | |
| return retval; | |
| } | |
| elements[index].push.apply( | |
| elements[index], | |
| container.querySelectorAll(selector) | |
| ); | |
| container.addEventListener("dragenter", preventDefault, false); | |
| container.addEventListener('dragover', preventDefault, false); | |
| container.addEventListener('drop', function () { | |
| var insertIndex = data[index].push(dragData)-1; | |
| if((data.validate && data.validate(data)) || !data.validate) { | |
| dragSource.parentElement.removeChild(dragSource); | |
| if(dragTarget) { | |
| container.insertBefore(dragSource, dragTarget); | |
| dragTarget = null; | |
| } else { | |
| container.appendChild(dragSource); | |
| } | |
| elements[index].push(dragSource); | |
| data.change && data.change(data); | |
| dragSource = null; | |
| dragData = null; | |
| } else { | |
| data[index].splice(insertIndex,1); | |
| elements[dragCollection].push(dragSource); | |
| data[dragCollection].push(dragData); | |
| } | |
| }); | |
| data[index] = elements[index].map(function (element) { | |
| var container = element.parentElement, | |
| meta; | |
| element.setAttribute('draggable', true); | |
| element.addEventListener('dragstart', function (event) { | |
| dragSource = findAndRemove(elements,element); | |
| dragData = findAndRemove(data,meta); | |
| dragCollection = index; | |
| event.stopPropagation(); | |
| }); | |
| element.addEventListener('dragover', preventDefault); | |
| element.addEventListener('dragend', function () { | |
| /*if (dragSource) { | |
| container.appendChild(dragSource); | |
| data[index].push(dragData); | |
| dragSource = null; | |
| dragData = null; | |
| }*/ | |
| }); | |
| element.addEventListener('drop', function () { | |
| dragTarget = element; | |
| }); | |
| meta = (dataFn ? dataFn(element) : element); | |
| return meta; | |
| }); | |
| }); | |
| return data; | |
| } | |
| function ListItem(e) { | |
| this.text = e.textContent; | |
| } | |
| var items = moveable($('ul'), 'li', function (e) { | |
| return new ListItem(e); | |
| }); | |
| var $out = document.querySelector('.out'); | |
| $out.textContent = JSON.stringify(items, null, 2); | |
| function players() { | |
| return items.slice(0, 4).reduce(function(sum, row, index) { | |
| console.log(index, ':', row.length) | |
| return sum + row.length; | |
| }, 0); | |
| } | |
| items.validate = function(data) { | |
| console.log(players() === 11 && data[0].length === 1); | |
| return players() <= 11 && data[0].length === 1; | |
| }; | |
| items.change = function(data) { | |
| $out.textContent = JSON.stringify(data, null, 2); | |
| }; |
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