一行HTML5代码能做什么?国外开发者Jose Jesus Perez Aguinaga写了一行HTML5代码的文本编辑器。这件事在分享到Code Wall、Hacker News之后,引起了众多开发者的注意,纷纷发表了自己的创意。 这是最初的HTML5代码,它可以运行在最新的Chrome和Firefox中,只需在浏览器地址栏输入如下代码:
data:text/html, <
html
contenteditable>
但是功能十分有限,甚至没有保存功能,样式也非常简陋。 于是,网友Montas修改了他的代码,使用textarea标签代替html标签,可以添加自己喜欢的样式:
data:text/html, <
textarea
style
=
"font-size: 1.5em; width: 100%; height: 100%; border: none; outline: none"
autofocus />
网友jecxjo希望能有存储功能:
data:text/html,<
button
onClick
=
"SaveTextArea()"
>Save
button
> <
script
language
=
"javascript"
type
=
"text/javascript"
> function SaveTextArea() { window.location = "data:application/octet-stream," + escape(txtBody.value); }
script
> <
textarea
id
=
"txtBody"
style
=
"font-size: 1.5em; width: 100%; height: 100%; boarder: none; outline: none"
autofocus>
textarea
>
但上面的代码是以文件形式存储,samsonjs觉得不够方便,而且需要点击按钮,于是添加了自动保存功能:
data:text/html,<
html
lang
=
"en"
><
head
><
style
> html,body { height: 100% } #note { width: 100%; height: 100% }
style
> <
script
> var note, html, timeout; window.addEventListener('load', function() { note = document.getElementById('note'); html = document.getElementsByTagName('html')[0]; html.addEventListener('keyup', function(ev) { if (timeout) clearTimeout(timeout); timeout = setTimeout(saveNote, 100); }); restoreNote(); note.focus(); }); function saveNote() { localStorage.note = note.innerText; timeout = null; } function restoreNote() { note.innerText = localStorage.note || ''; }
script
>
head
><
body
><
h1
>Notepad (type below, notes persist)
h1
> <
p
id
=
"note"
contenteditable
=
""
>
p
>
body
>
html
>
现在可是云时代!仅仅这样怎能让开发者止步?minikomi使用了第三方API打造了一个在线编辑器:
data:text/html,
没有代码高亮功能的编辑器终究不适合程序员,Rails开发者jakeonrails又定制了Ruby代码高亮功能:
data:text/html,
效果如下图:
实际上,如果minikomi的代码已经支持多种语言高亮,如Python,只需要把“markdown”换成“python”,效果如下:
你以为到此为止了?中国开发者assassindesign觉得只是文本编辑器就太无聊了,又提供了涂鸦版本:
data:text/html, <
body
><
canvas
id
=
"dyDraw"
>你的浏览器不支持HTML5 Canvas
canvas
>
body
><
script
>function $(id){return document.getElementById(id);} $('dyDraw').width=document.body.clientWidth;$('dyDraw').height=document.body.clientHeight;if(window.addEventListener){window.addEventListener('load',function(){var canvas,canvastext;var hua=false;function dyDrawing(){canvas=$('dyDraw');canvastext=canvas.getContext('2d');canvas.addEventListener('mousedown',canvasMouse,false);canvas.addEventListener('mousemove',canvasMouse,false);window.addEventListener('mouseup',canvasMouse,false);} function canvasMouse(dy){var x,y;if(dy.layerX||dy.layerX==0){x=dy.layerX;y=dy.layerY;}else if(dy.offsetX||dy.offsetX==0){x=dy.offsetX;y=dy.offsetY;} x-=dyDraw.offsetLeft;y-=dyDraw.offsetTop;if(dy.type=='mousedown'){hua=false;canvastext.beginPath();canvastext.moveTo(x,y);hua=true;}else if(dy.type=='mousemove'){if(hua){canvastext.strokeStyle="rgb(255,0,0)";canvastext.lineWidth=9;canvastext.lineTo(x,y);canvastext.stroke();}}else if(dy.type=='mouseup'){hua=false;}} dyDrawing();},false);}
script
>
还等什么呢?赶快试试看吧! 极客的创意的无穷的,你们是否有更好的创意,欢迎跟帖!