How to bind bootstrap popover on dynamic elements

JavascriptJqueryTwitter BootstrapDomBootstrap Popover

Javascript Problem Overview


I'm using Twitter Bootstrap's popover on the dynamic list. The list item has a button, when I click the button, it should show up popover. It works fine when I tested on non-dynamic.

this is my JavaScript for non-dynamic list

$("button[rel=popover]").popover({ 
    placement : 'right',
	container : 'body',
	html : true,
	//content:" <div style='color:red'>This is your div content</div>"
    content: function() {
      return $('#popover-content').html();
    }

    })
    .click(function(e) {
        e.preventDefault();
});

However, It doesn't work well on dynamic list. It can show up when I click the button "twice" and only show up one of list items I click fist time.

MY html:

 <ul id="project-list" class="nav nav-list">
   <li class='project-name'>
     <a >project name 1
         <button class="pop-function" rel="popover" ></button>
     </a>
   </li>
   <li class='project-name'>
     <a>project name 2
        <button class="pop-function" rel="popover" ></button>
     </a>
   </li>
                        
 </ul>
    
<div id="popover-content" style="display:none">
    <button class="pop-sync"></button>
    <button class="pop-delete"></button>
</div>

My JavaScript for dynamic:

$(document).on("click", "#project-list li" , function(){
   var username = $.cookie("username");
   var projectName = $(this).text()
   $("li.active").removeClass("active");
   $(this).addClass("active");
   console.log("username: " +username + " project name: "+projectName );
});


$(document).on("click", "button[rel=popover]", function(){
	$(this).popover({ 
	   placement : 'right',
	   container : 'body',
	   html : true,
	content: function() {
	   return $('#popover-content').html();
    	}

    }).click(function(e){
	e.preventDefault();
    })
	
});


//for close other popover when one popover button click
$(document).on("click", "button[rel=popover]" , function(){

        $("button[rel=popover]").not(this).popover('hide');
 });

I have searched similar problems, but I still can't find the one to solve my problem. If anyone has some ideas, please let me know. Thanks your help.

Javascript Solutions


Solution 1 - Javascript

Update

If your popover is going to have a selector that is consistent then you can make use of selector property of popover constructor.

var popOverSettings = {
    placement: 'bottom',
    container: 'body',
    html: true,
    selector: '[rel="popover"]', //Sepcify the selector here
    content: function () {
        return $('#popover-content').html();
    }
}

$('body').popover(popOverSettings);

Demo

Other ways:

  1. (Standard Way) Bind the popover again to the new items being inserted. Save the popoversettings in an external variable.
  2. Use Mutation Event/Mutation Observer to identify if a particular element has been inserted on to the ul or an element.
Source
var popOverSettings = { //Save the setting for later use as well
    placement: 'bottom',
    container: 'body',
    html: true,
    //content:" <div style='color:red'>This is your div content</div>"
    content: function () {
        return $('#popover-content').html();
    }

}

$('ul').on('DOMNodeInserted', function () { //listed for new items inserted onto ul
    $(event.target).popover(popOverSettings);
});

$("button[rel=popover]").popover(popOverSettings);
$('.pop-Add').click(function () {
    $('ul').append("<li class='project-name'>     <a>project name 2        <button class='pop-function' rel='popover'></button>     </a>   </li>");
});

But it is not recommended to use DOMNodeInserted Mutation Event for performance issues as well as support. This has been deprecated as well. So your best bet would be to save the setting and bind after you update with new element.

Demo

Another recommended way is to use MutationObserver instead of MutationEvent according to MDN, but again support in some browsers are unknown and performance a concern.

MutationObserver = window.MutationObserver || window.WebKitMutationObserver;
// create an observer instance
var observer = new MutationObserver(function (mutations) {
    mutations.forEach(function (mutation) {
        $(mutation.addedNodes).popover(popOverSettings);
    });
});

// configuration of the observer:
var config = {
     attributes: true, 
     childList: true, 
     characterData: true
};

// pass in the target node, as well as the observer options
observer.observe($('ul')[0], config);
Demo

Solution 2 - Javascript

Probably way too late but this is another option:

 $('body').popover({
    selector: '[rel=popover]',
    trigger: 'hover',
    html: true,
    content: function () {
        return $(this).parents('.row').first().find('.metaContainer').html();
    }
});

Solution 3 - Javascript

I did this and it works for me. "content" is placesContent object. not the html content!

var placesContent = $('#placescontent');
$('#places').popover({
		trigger: "click",
		placement: "bottom",
		container: 'body',
		html : true,
		content : placesContent,
	});

$('#places').on('shown.bs.popover', function(){
  $('#addPlaceBtn').on('click', addPlace);
}

<div id="placescontent"><div id="addPlaceBtn">Add</div></div>

Solution 4 - Javascript

Try this HTML

<a href="#" data-toggle="popover" data-popover-target="#popover-content-1">Do Popover 1</a>
<a href="#" data-toggle="popover" data-popover-target="#popover-content-2">Do Popover</a>

<div id="popover-content-1" style="display: none">Content 1</div>
<div id="popover-content-2" style="display: none">Content 2</div>

jQuery:

$(function() {
  $('[data-toggle="popover"]').each(function(i, obj) {
    var popover_target = $(this).data('popover-target');
    $(this).popover({
        html: true,
        trigger: 'focus',
        placement: 'right',
        content: function(obj) {
            return $(popover_target).html();
        }
    });
  });
});

Solution 5 - Javascript

This is how I made the code so it can handle dynamically created elements using popover feature. Using this code, you can trigger the popover to show by default.

HTML:

<div rel="this-should-be-the-target">
</div>

JQuery:

$(function() {
    var targetElement = 'rel="this-should-be-the-target"';
    initPopover(targetElement, "Test Popover Content");

    // use this line if you want it to show by default
    $(targetElement).popover('show');
    
    function initPopover(target, popOverContent) {
        $(target).each(function(i, obj) {
            $(this).popover({
                placement : 'auto',
                trigger : 'hover',
                "html": true,
                content: popOverContent
            });
         });
     }
});

Solution 6 - Javascript

Just to update that, a no-jquery answer for people using bootstrap 5 is

var popoverTriggerList = [].slice.call(document.querySelectorAll('[data-bs-toggle="popover"]'))
popoverTriggerList.map(function (popoverTriggerEl) {
    return new bootstrap.Popover(popoverTriggerEl, {
        content: get_content
    })
})

The get_content function should use this (the popover element) to generate dynamic content.

Attributions

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Content TypeOriginal AuthorOriginal Content on Stackoverflow
Questionuser2150267View Question on Stackoverflow
Solution 1 - JavascriptPSLView Answer on Stackoverflow
Solution 2 - JavascriptCiprianoView Answer on Stackoverflow
Solution 3 - JavascriptnurpView Answer on Stackoverflow
Solution 4 - JavascriptSomwang SouksavatdView Answer on Stackoverflow
Solution 5 - JavascriptMichael Vincent UyView Answer on Stackoverflow
Solution 6 - Javascriptuser2283347View Answer on Stackoverflow