$(document).ready(function() {
// #login-box password field
$('#password').attr('type', 'text');
$('#password').val('Password');
});
这是为了将password类型的#password输入字段(id="password")更改为普通的文本字段，然后填充文本"password"。
但这并不奏效。为什么?
表格如下:
<form enctype="application/x-www-form-urlencoded" method="post" action="/auth/sign-in">
<ol>
<li>
<div class="element">
<input type="text" name="username" id="username" value="Prihlasovacie meno" class="input-text" />
</div>
</li>
<li>
<div class="element">
<input type="password" name="password" id="password" value="" class="input-text" />
</div>
</li>
<li class="button">
<div class="button">
<input type="submit" name="sign_in" id="sign_in" value="Prihlásiť" class="input-submit" />
</div>
</li>
</ol>
</form>
一个更跨浏览器的解决方案……我希望这篇文章的要点能帮助到一些人。
此解决方案尝试设置type属性，如果失败，则简单地创建一个新的<input>元素，保留元素属性和事件处理程序。
changetypeatr .js (GitHub Gist):
/* x is the <input/> element
type is the type you want to change it to.
jQuery is required and assumed to be the "$" variable */
function changeType(x, type) {
x = $(x);
if(x.prop('type') == type)
return x; //That was easy.
try {
return x.prop('type', type); //Stupid IE security will not allow this
} catch(e) {
//Try re-creating the element (yep... this sucks)
//jQuery has no html() method for the element, so we have to put into a div first
var html = $("<div>").append(x.clone()).html();
var regex = /type=(\")?([^\"\s]+)(\")?/; //matches type=text or type="text"
//If no match, we add the type attribute to the end; otherwise, we replace
var tmp = $(html.match(regex) == null ?
html.replace(">", ' type="' + type + '">') :
html.replace(regex, 'type="' + type + '"') );
//Copy data from old element
tmp.data('type', x.data('type') );
var events = x.data('events');
var cb = function(events) {
return function() {
//Bind all prior events
for(i in events)
{
var y = events[i];
for(j in y)
tmp.bind(i, y[j].handler);
}
}
}(events);
x.replaceWith(tmp);
setTimeout(cb, 10); //Wait a bit to call function
return tmp;
}
}
作为浏览器安全模型的一部分，很可能会阻止该操作。
编辑:实际上，现在在Safari中测试，我得到的错误类型属性不能更改。
编辑2:这似乎是一个错误直接从jQuery。使用以下直接的DOM代码就可以了:
var pass = document.createElement('input');
pass.type = 'password';
document.body.appendChild(pass);
pass.type = 'text';
pass.value = 'Password';
编辑3:直接从jQuery源代码来看，这似乎与IE有关(可能是一个bug或他们安全模型的一部分，但jQuery不是特定的):
// We can't allow the type property to be changed (since it causes problems in IE)
if ( name == "type" && jQuery.nodeName( elem, "input" ) && elem.parentNode )
throw "type property can't be changed";
一个更跨浏览器的解决方案……我希望这篇文章的要点能帮助到一些人。
此解决方案尝试设置type属性，如果失败，则简单地创建一个新的<input>元素，保留元素属性和事件处理程序。
changetypeatr .js (GitHub Gist):
/* x is the <input/> element
type is the type you want to change it to.
jQuery is required and assumed to be the "$" variable */
function changeType(x, type) {
x = $(x);
if(x.prop('type') == type)
return x; //That was easy.
try {
return x.prop('type', type); //Stupid IE security will not allow this
} catch(e) {
//Try re-creating the element (yep... this sucks)
//jQuery has no html() method for the element, so we have to put into a div first
var html = $("<div>").append(x.clone()).html();
var regex = /type=(\")?([^\"\s]+)(\")?/; //matches type=text or type="text"
//If no match, we add the type attribute to the end; otherwise, we replace
var tmp = $(html.match(regex) == null ?
html.replace(">", ' type="' + type + '">') :
html.replace(regex, 'type="' + type + '"') );
//Copy data from old element
tmp.data('type', x.data('type') );
var events = x.data('events');
var cb = function(events) {
return function() {
//Bind all prior events
for(i in events)
{
var y = events[i];
for(j in y)
tmp.bind(i, y[j].handler);
}
}
}(events);
x.replaceWith(tmp);
setTimeout(cb, 10); //Wait a bit to call function
return tmp;
}
}
