open url in new tab or reuse existing one whenever possible
html, javascript, tabs
Solution
You can set specific window's name, in order to open reuse the tab. The problem is, as far as the href will be the same, it won't be reloaded. So you can't obtain the `refresh` part easily.
So, for instance, you can have:
<a href="blabla" target="blabla">link</a>
<a href="foo" target="bar">link</a>
In JS, you can actually obtain the same, using `window.open`. You could also use the url as `target`, so that you don't need to specify manually:
<a href="blabla" onclick="window.open(this.href, this.href); return false">link</a>
<a href="foo" onclick="window.open(this.href, this.href); return false">link</a>
You could also generalize, and add a click listener to the document, in order to open some links in this way. Something like:
<div id="container">
<a href="blabla">link</a>
<a href="foo">link</a>
</div>
<script>
document.getElementById("container").onclick = function(evt){
if (evt.target.tagName === "A")
window.open(evt.target.href, evt.target.href);
return false;
}
</script>
If the page are on the same domain, at this point you could probably trying to do an empiric refresh of the page as well.
Problem
Now I have a link ``` <a href="blabla" target="_blank">link</a> ``` However, this always open up a new tab. I want the following effect - If the user already has a tab with the same URL, reuse that tab, and refresh if possible - Otherwise, open a new tab How can I achieve this using JavaScript? It's OK if there're only some browser-specific methods, so users of browsers without corresponding support will "fallback" to the always-new-tab way.