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Comments on How to uncollapse an entire link tree with JavaScript?

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How to uncollapse an entire link tree with JavaScript?

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This data tree is comprised of clickable buttons and I want to expose all branches, in a single action, instead of clicking each vertical arrow button anew.

I have tried the following code which didn't work (it will only toggle and untoggle the first and second branches).

document.querySelectorAll(".CategoryTreeToggle").forEach((element)=>{
    window.setInterval(()=>{
        if (element.getAttribute('data-ct-state', 'collapsed') ) {
            element.click();
        }
    }, 1000);
});

How to uncollapse an entire link tree with JavaScript?

javascript html
posted over 2 years ago
2y ago by Alexei‭
deleted user
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1 comment thread

Hint (4 comments)
Hint
Alexei‭ wrote over 2 years ago
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When clicking on a parent node, the child nodes are lazy-loaded (they do not exist in the DOM).

Initial state

<div class="CategoryTreeChildren" style="display:none"></div>

After clicking (abbreviated):

<div class="CategoryTreeChildren" style="">
   <div class="CategoryTreeSection">
       <div class="CategoryTreeItem">
                  <span class="CategoryTreeBullet">
                         <span class="CategoryTreeToggle CategoryTreeToggleHandlerAttached" data-ct-title="MediaWiki_as_a_content_management_system" data-ct-state="collapsed" title="expand"></span> 
                   </span> 
                       <a href="/wiki/Category:MediaWiki_as_a_content_management_system" title="Category:MediaWiki as a content management system">MediaWiki as a content management system</a>&lrm;

I am into Vanilla JS, but I wonder if the function can "see" the newly created DOM elements.

deleted user wrote over 2 years ago
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I am sorry, I misunderstand how is the fact that the children are lazy loaded could help me expose the entire tree.

Alexei‭ wrote over 2 years ago
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Actually, it is just something I have noticed and that needs to be taken into account when looking for a solution. It makes things more complicated when compared to all nodes being in DOM, but hidden.

deleted user wrote over 2 years ago
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Oh, okay, I understand.