const nest = require('depnest') const Url = require('url') exports.gives = nest('app.async.catchLinkClick') exports.needs = nest({ 'app.html.externalConfirm': 'first', 'app.sync.goTo': 'first', 'router.async.normalise': 'first' }) exports.create = function (api) { return nest('app.async.catchLinkClick', catchLinkClick) function catchLinkClick (root, cb = defaultCallback) { root.addEventListener('click', (ev) => { if (ev.target.tagName === 'INPUT' && ev.target.type === 'file') return if (ev.defaultPrevented) return // TODO check this is in the right place ev.preventDefault() ev.stopPropagation() var anchor = null for (var n = ev.target; n.parentNode; n = n.parentNode) { if (n.nodeName === 'A') { anchor = n break } } if (!anchor) return true var href = anchor.getAttribute('href') if (!href || href == '#') return var url = Url.parse(href) var opts = { altKey: ev.altKey, ctrlKey: ev.ctrlKey, metaKey: ev.metaKey, shiftKey: ev.shiftKey, isExternal: !!url.host } cb(href, opts) }) } function defaultCallback (link, { ctrlKey, isExternal }) { if (isExternal) return api.app.html.externalConfirm(link) const openBackground = ctrlKey api.router.async.normalise(link, (err, location) => { if (location) api.app.sync.goTo(location, { openBackground }) }) } }