Kur*_*ula 2 css jquery tooltip buttonclick
我试图用jQuery显示一个警告按钮单击,显示警报中title属性的值.我无法显示它,警报消息显示一个空字符串.这是我的踪迹
单击#btn1显示空标题.为什么单击时会清除title属性?
是$(document).tooltip影响一些如何?我删除了$(document).tooltip功能,它正在工作.我试图使它与jQuery UI工具提示一起使用.
<p>Your age:
<input type=text title="We ask for your age only for statistical purposes.">
</p>
<p>
<input type="button" id="btn1" title="This a test enabled button." value="hover me please">
</p>
<p>
<input type="button" disabled="disabled" id="btn2" title="This a test disabled button." value="hover me please">
</p>
$(function () {
$(document).on("click","#btn1", function () {
alert($(this).attr("title"));
});
$(document).on("click","#btn2", function () {
alert($(this).attr("title"));
});
$(document).tooltip({
position: {
my: "center bottom-20",
at: "center top",
using: function (position, feedback) {
$(this).css(position);
$("<div>")
.addClass("arrow")
.addClass(feedback.vertical)
.addClass(feedback.horizontal)
.appendTo(this);
}
}
});
});
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在jQuery UI的第16182行(ctrl-F表示" target.removeAttr( "title" );"),您可以看到该title属性已被删除.这一行上面的评论解释了为什么这样做.
以下是jQuery UI文件中的注释,解释了为什么删除了title属性的值.
// if we have a title, clear it to prevent the native tooltip
// we have to check first to avoid defining a title if none exists
// (we don't want to cause an element to start matching [title])
//
// We use removeAttr only for key events, to allow IE to export the correct
// accessible attributes. For mouse events, set to empty string to avoid
// native tooltip showing up (happens only when removing inside mouseover).
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var btn1_title_at_load = $("#btn1").attr("title");
$(document).on("click","#btn1", function () {
alert(btn1_title_at_load);
});
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<input type="button" id="btn1" title="This a test enabled button."
value="hover me please"
data-title="This a test enabled button." />
$(document).on("click","#btn1", function () {
var t = $(this).data("title");
window.alert(t);
});
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支持证据.
以编程方式单击页面加载上的按钮, 注意页面加载时悬停事件未处于活动状态.
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