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Persist #g.XX graph settings when clicking links, refs #12

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Simon Willison 2018-07-05 18:53:55 -07:00
commit e768dd05f1
1 changed files with 43 additions and 0 deletions
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43
src/index.js
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@ -32,3 +32,46 @@ document.addEventListener('DOMContentLoaded', () => {
);
}
});
// Persist #settings across links to same page
window.addEventListener('click', function (ev) {
if (window.location.hash.length == 0) {
return true;
}
if (ev.altKey || ev.ctrlKey || ev.metaKey || ev.shiftKey || ev.defaultPrevented) {
return true;
}
var a = null;
for (var n = ev.target; n.parentNode; n = n.parentNode) {
if (n.nodeName === 'A') {
a = n;
break;
}
}
if (!a || !a.href) {
return true;
}
// This expands the full URL even if the link is /relative:
var href = a.href;
// Split off any existing #fragment
href = href.split('#')[0];
// Only activate if link is to current page (presumably with different querystring)
var currentHostAndPath = window.location.hostname;
if (window.location.port !== '') {
currentHostAndPath += ':' + window.location.port;
}
currentHostAndPath += window.location.pathname;
// Ignore http/s due to https://github.com/simonw/datasette/issues/333
var linkedHostQuery = href.split('?')[1];
var linkedHostAndPath = href.split('://')[1].split('?')[0];
if (currentHostAndPath == linkedHostAndPath) {
// Cancel click, navigate to this + fragment instead
if (linkedHostQuery) {
linkedHostAndPath += '?' + linkedHostQuery;
}
ev.preventDefault();
window.location = window.location.protocol + '//' + linkedHostAndPath + window.location.hash;
return false;
}
return true;
});