Created
March 25, 2012 01:59
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localStorage-based todo list
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| <!DOCTYPE HTML> | |
| <html lang="en-US"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>Todo Demo</title> | |
| <script> | |
| window.onload = function() { | |
| var item, complete, list; | |
| list = document.getElementById('list'); | |
| if (typeof(localStorage) == 'undefined') { | |
| list.innerHTML = 'Sorry, you need a browser that supports localStorage.'; | |
| document.getElementById('add').disabled = true; | |
| } else { | |
| try { | |
| var keys = localStorage.getItem('__keys').split(','); | |
| for (k in keys) { | |
| k = keys[k].replace(/ /g,''); | |
| if (k) { | |
| item = localStorage.getItem(k); | |
| complete = localStorage.getItem(k + '_complete'); | |
| if (complete === 'true') list.innerHTML += '<li class="complete"> <input type="checkbox" id="'+ k +'" onclick="checkedItem(this)" checked> ' + item; | |
| else list.innerHTML += '<li class="incomplete"> <input type="checkbox" id="'+ k +'" onclick="checkedItem(this)"> ' + item; | |
| } | |
| } | |
| } catch (e) { localStorage.setItem('__keys', ''); } | |
| } | |
| }; | |
| var addItem = function() { | |
| // attempt unique name | |
| var item, val, key; | |
| item = document.getElementById('item').value; | |
| val = item.split(' '); | |
| key = ''; | |
| for (v in val) { | |
| v = val[v]; | |
| key = key + v.substring(0,1); | |
| } | |
| key = key.toLowerCase(); | |
| localStorage.setItem(key, item); | |
| localStorage.setItem(key + '_complete', false); | |
| document.getElementById('list').innerHTML += '<li class="incomplete"> <input type="checkbox" id="'+ k +'" onclick="checkedItem(this)"> ' + item; | |
| // update key list | |
| var keylist = localStorage.getItem('__keys') + key + ','; | |
| localStorage.setItem('__keys', keylist); | |
| }; | |
| var checkedItem = function(ele) { | |
| if (ele.checked) { | |
| ele.parentNode.className = 'complete'; | |
| localStorage.setItem(ele.id+'_complete', 'true'); | |
| } else { | |
| ele.parentNode.className = 'incomplete'; | |
| localStorage.setItem(ele.id+'_complete', 'false'); | |
| } | |
| }; | |
| </script> | |
| <style> | |
| body { font-family: helvetica, arial; } | |
| header { font-size: 24pt; font-variant: small-caps; } | |
| input { font-size: 16pt; } | |
| input#item { width: 800px; } | |
| li { font-size: 16pt; list-style: none; } | |
| .content { width: 900px; margin: 0 auto; } | |
| .incomplete { font-weight: bold; } | |
| .complete { text-decoration: line-through; } | |
| </style> | |
| </head> | |
| <body> | |
| <div class="content"> | |
| <header> | |
| Todo List | |
| </header> | |
| <div id="main"> | |
| <input type="text" id="item"> <input type="button" value="Add" id="add" onclick="addItem()"> | |
| <hr> | |
| <div id="list"></div> | |
| </div> | |
| </div> | |
| </body> | |
| </html> |
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