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September 21, 2010 01:19
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Example code for
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$(window).load(function(){ | |
if (!Modernizr.input.placeholder){ | |
$('input').supportPlaceHolder(); | |
} | |
if (!Modernizr.textarea.placeholder){ | |
$('textarea').supportPlaceHolder(); | |
} | |
}); |
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var t = document.createElement('textarea'); // #=> <textarea></textarea> | |
(t.placeholder !== undefined); // #=> true || false |
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// http://github.com/Modernizr/Modernizr/issues#issue/76 | |
var textareaSupport = function(){ | |
var support = {}, | |
t = document.createElement('textarea'); | |
support.placeholder = (t.placeholder !== undefined); | |
return support; | |
}; | |
Modernizr.textarea = textareaSupport(); |
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<!DOCTYPE html> | |
<html lang="en"> | |
<head> | |
<meta charset="utf-8" /> | |
<title>HTML5 placeholder example</title> | |
<style type="text/css" media="screen"> | |
body { | |
padding: 0 1.125em; | |
} | |
h1, h2 { | |
text-align: center; | |
} | |
hr { | |
border: 2px solid black; | |
} | |
</style> | |
<script type="text/javascript" src="http://code.jquery.com/jquery-1.4.2.min.js"></script> | |
<script type="text/javascript" src="modernizr.js"></script> | |
<script type="text/javascript" src="feature-detection.js"></script> | |
<script type="text/javascript" src="jquery.placeholder.js"></script> | |
<script type="text/javascript" src="application.js"></script> | |
</head> | |
<body> | |
<div id="header"> | |
<h1>Placeholder attribute</h1> | |
</div> | |
<div id="content"> | |
<form id="search-form" method="get"> | |
<input type="text" placeholder="Search Users" name="search-users" /> | |
<input name="commit" value="Search" type="submit" /> | |
</form> | |
</div> | |
<div id="footer"> | |
</div> | |
</body> | |
</html> |
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if (!Modernizr.input.placeholder){ | |
$('input').each(function(i){ | |
$(this).val($(this).attr('placeholder')); | |
$(this).focus(function(e){ | |
if ($(this).val() === $(this).attr('placeholder')) { | |
$(this).val(''); | |
} | |
}); | |
$(this).blur(function(e){ | |
if ($(this).val() === '') { | |
$(this).val($(this).attr('placeholder')); | |
} | |
}); | |
}); | |
$('form').submit(function(e){ | |
$(this).find('input').each(function(i){ | |
if ($(this).val() === $(this).attr('placeholder')) { | |
$(this).val(''); | |
} | |
}); | |
}); | |
} |
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$.fn.supportPlaceHolder = function(){ | |
return this.each(function(){ | |
var element = this; | |
$(element).each(function(i){ | |
$(this).val($(this).attr('placeholder')); | |
$(this).focus(function(e){ | |
if ($(this).val() === $(this).attr('placeholder')) { | |
$(this).val(''); | |
} | |
}); | |
$(this).blur(function(e){ | |
if ($(this).val() === '') { | |
$(this).val($(this).attr('placeholder')); | |
} | |
}); | |
}); | |
$('form').submit(function(e){ | |
$(this).find(element).each(function(i){ | |
if ($(this).val() === $(this).attr('placeholder')) { | |
$(this).val(''); | |
} | |
}); | |
}); | |
}); | |
} |
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/*! | |
* Modernizr JavaScript library 1.5 | |
* http://www.modernizr.com/ | |
* | |
* Copyright (c) 2009-2010 Faruk Ates - http://farukat.es/ | |
* Dual-licensed under the BSD and MIT licenses. | |
* http://www.modernizr.com/license/ | |
* | |
* Featuring major contributions by | |
* Paul Irish - http://paulirish.com | |
*/ | |
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"text"){n.value=K;/tel|search/.test(n.type)||(c=/url|email/.test(n.type)?n.checkValidity&&n.checkValidity()===false:n.value!=K)}L[a[b]]=!!c}return L}("search tel url email datetime date month week time datetime-local number range color".split(" "))}var j={},s=e.documentElement,D=e.createElement("modernizr"),m=D.style,n=e.createElement("input"),E="input",Q=E+"types",K=":)",M=Object.prototype.toString,y=" -o- -moz- -ms- -webkit- -khtml- ".split(" "),d={},L={},J={},N=[],u=function(){var a={select:"input", | |
change:"input",submit:"form",reset:"form",error:"img",load:"img",abort:"img"},b={};return function(c,h){var t=arguments.length==1;if(t&&b[c])return b[c];h=h||document.createElement(a[c]||"div");c="on"+c;var g=c in h;if(!g&&h.setAttribute){h.setAttribute(c,"return;");g=typeof h[c]=="function"}h=null;return t?(b[c]=g):g}}(),F={}.hasOwnProperty,O;O=typeof F!=="undefined"&&typeof F.call!=="undefined"?function(a,b){return F.call(a,b)}:function(a,b){return b in a&&typeof a.constructor.prototype[b]==="undefined"}; | |
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i)&&(document.documentMode===I||document.documentMode>7)};d.historymanagement=function(){return!!(i.history&&history.pushState)};d.draganddrop=function(){return u("drag")&&u("dragstart")&&u("dragenter")&&u("dragover")&&u("dragleave")&&u("dragend")&&u("drop")};d.websockets=function(){return"WebSocket"in i};d.rgba=function(){m.cssText="background-color:rgba(150,255,150,.5)";return(""+m.backgroundColor).indexOf("rgba")!==-1};d.hsla=function(){m.cssText="background-color:hsla(120,40%,100%,.5)";return(""+ | |
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d.applicationCache=function(){var a=i.applicationCache;return!!(a&&typeof a.status!="undefined"&&typeof a.update=="function"&&typeof a.swapCache=="function")};d.svg=function(){return!!e.createElementNS&&!!e.createElementNS("http://www.w3.org/2000/svg","svg").createSVGRect};d.smil=function(){return!!e.createElementNS&&/SVG/.test(M.call(e.createElementNS("http://www.w3.org/2000/svg","animate")))};d.svgclippaths=function(){return!!e.createElementNS&&/SVG/.test(M.call(e.createElementNS("http://www.w3.org/2000/svg", | |
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function(){for(var f=-1,k;++f<p.length;)p[f][1].parentNode.replaceChild(p[f][0],p[f][1]);for(k in o)t[G].removeChild(o[k]);o={};p=[]})}(this,e);j._enableHTML5=true;j._version="1.5";s.className=s.className.replace(/\bno-js\b/,"")+" js";s.className+=" "+N.join(" ");return j}(this,this.document); |
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<form id="search-form" method="get"> | |
<input type="text" placeholder="Search Users" name="search-users" /> | |
<input name="commit" value="Search" type="submit" /> | |
</form> |
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if (!Modernizr.input.placeholder){ | |
// placeholder implementation here | |
} |
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