Owe*_*wen 7 jquery xpath dom element
遇到麻烦,基本上试图创建一个可以用作选择器的变量.例如
$('a').click(function(){
var selector = $(this).dompath();
});
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HTML:
html
body
div
div /div
/div
ul
li
li
/ul
div
ul
li
li
li hello world
/ul
/div
body
html
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这将返回类似的东西
path = html body div ul li:contains('hello world')
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然后我可以在选择器中使用它来选择这个div,所以如果我喜欢
$(path).text() would return "hello world"
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非常感谢!
jce*_*ern 14
也许是这样的:
function dompath( element )
{
var path = '';
for ( ; element && element.nodeType == 1; element = element.parentNode )
{
var inner = $(element).children().length == 0 ? $(element).text() : '';
var eleSelector = element.tagName.toLowerCase() +
((inner.length > 0) ? ':contains(\'' + inner + '\')' : '');
path = ' ' + eleSelector + path;
}
return path;
}
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这修改了另一个问题的方法,:contains()只有当标签没有子标签时才通过运算符添加标签的全文内容.
我用这种方法测试过:
$(document).ready(function(){
$('#p').click(function() {
console.log(dompath(this));
});
});
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反对这个:
<html>
<body>
<div>
<div> </div>
</div>
<ul>
<li></li>
<li></li>
</ul>
<div>
<ul>
<li id="p">hi</li>
<li></li>
<li id="p2">hello world</li>
</ul>
</div>
<body>
<html>
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点击p的结果然后输出为:
html body div ul li:contains('hi')
@jcern神奇代码的修改版本。
特征:
#elementIdelement.classNameelement与它的innerHtml附加(如果有的话)<body>和<html>元素以缩短输出function dompath(element) {
var path = '',
i, innerText, tag, selector, classes;
for (i = 0; element && element.nodeType == 1; element = element.parentNode, i++) {
innerText = element.childNodes.length === 0 ? element.innerHTML : '';
tag = element.tagName.toLowerCase();
classes = element.className;
// Skip <html> and <body> tags
if (tag === "html" || tag === "body")
continue;
if (element.id !== '') {
// If element has an ID, use only the ID of the element
selector = '#' + element.id;
// To use this with jQuery, return a path once we have an ID
// as it's no need to look for more parents afterwards.
//return selector + ' ' + path;
} else if (classes.length > 0) {
// If element has classes, use the element tag with the class names appended
selector = tag + '.' + classes.replace(/ /g , ".");
} else {
// If element has neither, print tag with containing text appended (if any)
selector = tag + ((innerText.length > 0) ? ":contains('" + innerText + "')" : "");
}
path = ' ' + selector + path;
}
return path;
}
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