If I have a simple BS collapse:

<a href="#content-<?php echo id; ?>" data-toggle="collapse">Trigger Text</a>

<div id="content-<?php echo id; ?>" class="collapse">

Is it possible to trigger the toggle to open as it goes to it from a link in a separate module?

Say link would be:


It's already going to where content #83 is located at the article, but since the toggle is set to closed on that page it only goes to the article page and never actually shows the contents of content #83. There are reasons it needs to be closed on the page it shows up on, but not if clicked through from that link.

  • So before the content is displayed, you want to have a plugin conditionally remove the class="collapse" attribute? or would you like to change the value from collapse to something else? This, of course, would be a "conditional" action whereby only the id value matches the fragment value. Relevant reading: stackoverflow.com/q/2317508/2943403 – mickmackusa Dec 12 '18 at 7:19
  • I've never made a plugin, but if that would help I can give it a shot. Just need the collapse to open when accessed through that link. The content is JComments comments. I have them collapsed with certain info on toggles, but it screwed up the link in the latest comments module so that when you click comment #83 it just takes you to the article and stops, so you still have to look through the toggles to find #83 and then manually open it, where if it automatically opened it you wouldn't have to search for it and open it, you would just know where it is because it's the only one open. – Mythic Dec 12 '18 at 15:14

Get the fragment from URL, check that element with the same ID is collapsible and run collapse('show') if it is:

jQuery(function() {
    var fragment = window.location.hash;
    if (fragment && jQuery(fragment).hasClass('collapse')) {
  • Where would that go? Keep getting errors anyplace I put it. – Mythic Dec 13 '18 at 16:23
  • This is JavaScript code. You can add it to your template (either inline or in a .js file) or to layout override. Or load it with a plugin. Related documentation: docs.joomla.org/J3.x:Adding_JavaScript_and_CSS_to_the_page and docs.joomla.org/Adding_JavaScript. – Sharky Dec 13 '18 at 21:08
  • I got it working, but it only opens the toggle for a few seconds and then immediately it closes again. – Mythic Dec 13 '18 at 23:09
  • @Mythic I suppose rather than changing the attribute value, you could remove the class so that it "doesn't get pickup again" by another js function. (if this answer was helpful to you, please upvote; if it resolves your issue, please accept) – mickmackusa Dec 14 '18 at 3:10
  • Can't do that or they all just stay open. Does seem like something is overriding it at the end though. Tried finding a place where it would be last to run, but no such luck yet. – Mythic Dec 14 '18 at 4:57

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