小“X”在文本框输入在mobileSafari的iphone？ [英] little 'x' in textfield input on the iphone in mobileSafari?

问题描述

我一直在到处找这个没有任何运气。如果你去到google.com在iPhone上，当你在专注于搜索领域的一个小X出现在所有的方式在正确的，如果你触摸它清除该领域的当前值。任何人都知道如何做到这一点？

I have been looking everywhere for this without any luck. If you go to google.com on the iphone when you focus in on the search field a little 'x' appears all the way in the right and if you touch it it clears the current value of the field. Anybody know how to accomplish this?

推荐答案

我用Safari浏览器的开发菜单，改变了用户代理到iPhone。查看在谷歌的来源，看起来他们已经成立自己的HTML像这样：

I used the develop menu in Safari and changed the user agent to iPhone. Viewing the source on Google, it looks like they've set their html up like this:

<div class="gp2">
<input class="gp7" id="query" type="text" name="q" size="30" maxlength="2048" autocorrect="off" autocomplete="off" />
<a class="clear" id="clearQuery" href="#">
    <img src="data:image/gif;base64,R0lGODlhAQABAID%2FAMDAwAAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw%3D%3D" alt="" />
</a>

和正在使用此javascript：

and are using this javascript:

function initClearQueryLink(query,clearQuery){
    clearQuery.setAttribute("title","Clear");
    clearQuery.addEventListener("mousedown",clearQueryBox,true);
    query.addEventListener("keyup",_handleClearQueryLink,false)
}

function _handleClearQueryLink(){
    var query=document.getElementById("query");
    var clearQuery=document.getElementById("clearQuery");
    if(clearQuery)
        if(query.value.length>0){
            clearQuery.style.display="inline";
            clearQuery.style.visibility="visible"
        } else{
            clearQuery.style.display="none";
            clearQuery.style.visibility="hidden"
        }
}

function clearQueryBox(event){
    var query=document.getElementById("query");
    var clearQuery=document.getElementById("clearQuery");
    query.value="";
    clearQuery.style.display="none";
    clearQuery.style.visibility="hidden";
    hideSuggest();
    if(event)event.preventDefault()
}

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