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index.js
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index.js
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var assert = require('assert')
module.exports = href
var noRoutingAttrName = 'data-no-routing'
// handle a click if is anchor tag with an href
// and url lives on the same domain. Replaces
// trailing '#' so empty links work as expected.
// (fn(str), obj?) -> undefined
function href (cb, root) {
assert.equal(typeof cb, 'function', 'nanohref: cb must be type function')
root = root || window.document
window.onclick = function (e) {
if ((e.button && e.button !== 0) || e.ctrlKey || e.metaKey || e.altKey || e.shiftKey) return
var node = (function traverse (node) {
if (!node || node === root) return
if (node.localName !== 'a') return traverse(node.parentNode)
if (node.href === undefined) return traverse(node.parentNode)
if (window.location.host !== node.host) return traverse(node.parentNode)
return node
})(e.target)
if (!node) return
var isRoutingDisabled = node.hasAttribute(noRoutingAttrName)
if (isRoutingDisabled) return
e.preventDefault()
cb(node)
}
}