I want to make link on parent node active in tree view. So far I do this:
<li>A - Referensi Spasial <!--this is parent node-->
<ul>
<li>Jaring Kerangka Referensi Geodesi</li>
<li>Model Geoid
<ul>
<li>AB01010010</li>
<li>AB01010020</li>
</ul>
</li>
<li>Stasiun Pasang Surut</li>
</ul>
</li>
When I click the parent node, it just expand the children nodes. What I want is when I click it, it open the link I set on <a></a>
Here is my screenshot of my tree view:
And this is the javascript code:
$.fn.extend({
treed: function (o) {
var openedClass = 'glyphicon-minus-sign';
var closedClass = 'glyphicon-plus-sign';
if (typeof o != 'undefined'){
if (typeof o.openedClass != 'undefined'){
openedClass = o.openedClass;
}
if (typeof o.closedClass != 'undefined'){
closedClass = o.closedClass;
}
};
//initialize each of the top levels
var tree = $(this);
tree.addClass("tree");
tree.find('li').has("ul").each(function () {
var branch = $(this); //li with children ul
branch.prepend("<i class='indicator glyphicon " + closedClass + "'></i>");
branch.addClass('branch');
branch.on('click', function (e) {
if (this == e.target) {
var icon = $(this).children('i:first');
icon.toggleClass(openedClass + " " + closedClass);
$(this).children().children().toggle();
}
})
branch.children().children().toggle();
});
//fire event from the dynamically added icon
tree.find('.branch .indicator').each(function(){
$(this).on('click', function () {
$(this).closest('li').click();
});
});
//fire event to open branch if the li contains an anchor instead of text
tree.find('.branch>a').each(function () {
$(this).on('click', function (e) {
$(this).closest('li').click();
e.preventDefault();
});
});
//fire event to open branch if the li contains a button instead of text
tree.find('.branch>button').each(function () {
$(this).on('click', function (e) {
$(this).closest('li').click();
e.preventDefault();
});
});
}
});
//Initialization of treeviews
$('#tree1').treed();
So, how can I do that thing? Can anyone help me? Thanks
If my understanding is correct, you are asking why your links seem to have no effect at all, and clicking on them just expands the tree as if it were normal text?
It seems to me that this is simply due to the code that attaches events on those links, i.e. the block below comment "fire event to open branch if the li contains an anchor instead of text".
The $(this).closest('li').click(); instruction generates a new click event on the parent "li" item.
The e.preventDefault(); instruction prevents the link from receiving the "click" event, therefore it does not redirect the page / scroll to anchor.
So the result is as if the "click" had "jumped" your link and be passed to the parent "li", therefore not redirecting but expanding the tree.
You could simply remove that block to restore the links normal behaviour. However, the "click" event would still bubble to the parent "li" element, and expand the tree. Not an issue if the pages is redirected, but it is noticeable if the link goes to a local anchor (same page).
To prevent this (but still let the link do its normal job), keep the block but replace the 2 inner instructions by e.stopPropagation();. On the contrary of preventDefault(), it lets the current event happening, but it stops the event bubbling (parent elements do not receive it).
Now I am not sure about the reason for that block. It seems that it was more intended for anchors (which use the same "a" tag but with "name" attribute instead of "href"). But there would be no reason to prevent the "click" event on an anchor?
Related
Here's a pen with the full html: https://codepen.io/froggomad/pen/WLdzoB
I'm writing 2 functions - one to show hidden content, and one to hide it. I'm wanting the show() function to execute on the parent div and the hide() function to execute on the div with the selector .click-text.
However, I'm switching text on .click-text from show to hide so I don't want the hide function to remain on the text at all times. I also want it obvious that its interactive text when changing to a hide function, so I make it a link.
That's all well, but when attempting to set the onclick Attr of the parent back to the show() function, nothing in the hide block executes at all.
If I remove the line setting the parent's onclick Attr, the script executes as expected. If I set another element's onclick Attr, the script executes as expected.
However, with that line in there, nothing happens and there's no output in the console to indicate an error. I even set an alert with the type of element and classname to ensure I'm targeting the right element.
Get closest parent of element matching selector:
var getClosest = function (element, selector) {
for ( ; element && element !== document; element = element.parentNode ) {
if ( element.matches(selector) ) return element;
}
return null;
}
Show Hidden Element ul.service-category-menu
function show(elem) {
var menu = elem.querySelector("ul.service-category-menu"),
click = elem.querySelector(".click-text"),
parent = getClosest(elem, '.service-category');
;
if (menu.style.display === "none" || menu.style.display === "") {
menu.style.display = "block";
click.innerHTML = "<a href=\"#\">Click to Hide<\/a>";
click.setAttribute('onclick','hide(this);');
elem.setAttribute('onclick', 'null');
}
}
Hide Element
function hide(elem) {
var parent = getClosest(elem, '.service-category'),
menu = parent.querySelector("ul.service-category-menu"),
click = parent.querySelector(".click-text")
;
alert(parent + "\n" + parent.className);
//Outputs div element with expected class name (class name is unique on each div)
if (menu.style.display === "block") {
menu.style.display = "none";
click.innerHTML = "Click to Show";
click.setAttribute('onclick', 'null');
//the above lines don't execute when the following line is in place. There's no error in console.
parent.setAttribute('onclick','show(this)');
}
}
First off, I must confess that I'm against using onclick attributes. If you're not using a framework such as VueJS or React, I think HTML and JS should remain separated for better control and maintainability.
You can use addEventListener, removeEventListener, and e.stopPropagation() to avoid triggering multiple event handlers.
Events have two phases:
Event capture: the event spreads from the document all the way down to the target element.
To catch an event during this phase, do:
elm.addEventListener('click', myFunc, true);
Event bubbling: the event bounces back from the target to the document.
To catch an event during this phase, do:
elm.addEventListener('click', myFunc, false); /* or just omit the 3rd param */
Using e.stopPropagation() allows you to break that chain.
// When the DOM is ready
window.addEventListener("DOMContentLoaded", init);
function init() {
// Get all categories
var $categories = document.querySelectorAll(".service-category");
// For each of them
Array.from($categories).forEach(function($category) {
// Add an event listener for clicks
$category.addEventListener("click", show);
});
}
function getClosest(element, selector) {
for (; element && element !== document; element = element.parentNode) {
if (element.matches(selector)) return element;
}
return null;
}
function show(e) {
var $menu = this.querySelector("ul.service-category-menu"),
$click = this.querySelector(".click-text");
if (["none", ""].includes($menu.style.display)) {
$menu.style.display = "block";
$click.innerHTML = 'Click to Hide';
$click.addEventListener("click", hide);
// Remove the `show` event listener
this.removeEventListener("click", show);
}
e.stopPropagation();
}
function hide(e) {
var $parent = getClosest(this, ".service-category"),
$menu = $parent.querySelector("ul.service-category-menu"),
$click = $parent.querySelector(".click-text");
if (!["none", ""].includes($menu.style.display)) {
$menu.style.display = "none";
$click.innerHTML = "Click to Show";
$click.removeEventListener("click", hide);
$parent.addEventListener("click", show);
}
e.stopPropagation();
}
.service-category{display:inline-block;border:3px solid #ccc;margin:1%;font-weight:700;font-size:3.5vw;cursor:pointer;background-color:#fff;z-index:3;background-position:center;background-size:cover;color:#000}.click-text{text-align:right;font-size:1.25vw;font-style:italic;font-weight:700;padding-right:1%}.service-category:hover .click-text{color:#b22222}.service-category-menu{display:none;margin-left:8%;margin-right:8%;margin-top:1%;background-color:#fff;font-weight:700;font-size:1.6vw;border-radius:10px}
<div class="service-category web-back" id="web-back">
<div class="row-overlay">
Web <br /> Development
<div class="click-text">Click to Show</div>
<ul class="service-category-menu web">
<li>
Some text...
</li>
</ul>
</div>
</div>
<div class="service-category web-front" id="web-front">
<div class="row-overlay">
Web <br /> Design
<div class="click-text">Click to Show</div>
<ul class="service-category-menu web">
<li>
Some text...
</li>
</ul>
</div>
</div>
It is executed, it's just after you click that Click to Hide, the event continues to parent and the event handler of the parent executed. Thus, what exactly happen is (with that line), after hide() called, you inadvertently called show().
In javascript it's usually called bubbles (when you click the children, the click handler of parent will also be executed after click handler of children complete).
So the solution, you can add this line at the end of the hide() function
event.stopPropagation();
To stop the event from continuing to the parent
Setting event.stopPropagation as mentioned in the other answer will potentially fix your issue. Alternatively, you can change the last line of your hide function to window.setTimeout(e => parent.setAttribute('onclick','show(this)'), 0).
What's happening right now is:
You click
it executes your hide function, and during that function it binds a click event to the parent
The click propagates to the parent and executes the newly bound function, re-showing the content.
By using setTimeout(fn, 0), you're making sure the click event completes before the function is bound to the parent.
I am using appendTo to move list items between two list, upon a button click. The button resides in each li element. Each li has two buttons, of which only one is visible at a time, depending on the list the li currently resides.
Here is the function:
// 'this' is the first list
// Click Handler for remove and add buttons
$(this.selector + ', ' + settings.target + ' li button').click(function(e) {
var button = $(e.target);
var listItem = button.parent('li');
listItem.children("button").toggleClass("hidden");
if (button.hasClass("assign")) {
// Add Element to assignment list
listItem.appendTo(settings.target);
}
else
if (button.hasClass("remove")) {
// Remove Element from assignment list
listItem.appendTo(source);
}
})
As long as the list item reside in the original li, the click events in the buttons are triggered. However, once it is moved to the other list using listItem.apendTo. The click item no longer fires. Why is this the case? I cant find anything about this in the docs.
Sometimes jQuery won't be able to find something if it isn't present in the DOM when your script first loads. If it is a dynamically created element, try replacing your click event handlers with 'on'
Rather than:
$(".aClass").click(function(){
// Code here
})
Try:
$("body").on("click", ".aClass", function(){
Code here
})
http://api.jquery.com/on/
You should use on event.
$(".aClass").on("click", function(){
//Your custom code
})
on event is usful for Dynamically generated data + static data already in HTML.
As recommended by user 'apsdehal', a deleate was what i needed:
// Click Handler for remove and add buttons
$(source.selector + ', ' + settings.target ).delegate("li button", "click", function(e) {
var button = $(e.target);
var listItem = button.parent('li');
listItem.children("button").toggleClass("hidden");
if (button.hasClass("assign")) {
// Add Element to assignment list
listItem.appendTo(settings.target);
}
else
if (button.hasClass("remove")) {
// Remove Element from assignment list
listItem.appendTo(source);
}
});
I am working with this plugin that runs off of the data attribute. Basically when you click anywhere on the body it will determine if the click target has this specific data-vzpop. The problem is lets say I have a div and inside the div is an a href. It only acknowledges the a href as the click target and not the div (which makes sense).
What I want to try and do in some cases is put the data attribute on the containing div that way anything within the div works on click.
Here is a sample of the issue with jsfiddle it requires viewing the console so you can actually see which element is registered as being clicked.
<div data-vzpop>
Click Me
</div>
$('body').on('click', function(evt){
var clickTarget = evt.target;
if ($(clickTarget).attr('data-vzpop') !== undefined){
evt.preventDefault();
console.log('called correctly')
} else {
console.log('not called correctly')
}
console.log(clickTarget)
});
fiddle
You would use Event delegation:
$('body').on('click', '[data-vzpop]', function(evt) {
This will only trigger when the evt.target has a data attribute of data-vzpop, no matter the value.
If you want items inside the [data-vzpop] to trigger it as well, you would use your original click event but check that the $(clickTarget).closest('[data-vzpop]').length > 0 to determine if it's a nested target.
$('body').on('click', function(evt){
var clickTarget = evt.target;
if ($(clickTarget).attr('data-vzpop') != null ||
$(clickTarget).closest('[data-vzpop]').length > 0){
evt.preventDefault();
console.log('called correctly')
} else {
console.log('not called correctly')
}
console.log(clickTarget)
});
I have an editable element inside a div which itself is clickable. Whenever I click the x-editable anchor element, the click bubbles up the DOM and triggers a click on the parent div. How can I prevent that? I know it's possible to stop this with jQuery's stopPropagation() but where would I call this method?
Here's the JSFiddle with the problem: http://jsfiddle.net/4RZvV/ . To replicate click on the editable values and you'll see that the containing div will catch a click event. This also happens when I click anywhere on the x-editable popup and I'd like to prevent that as well.
EDIT after lightswitch05 answer
I have multiple dynamic DIVs which should be selectable so I couldn't use a global variable. I added an attribute to the .editable-click anchors which get's changed instead.
editable-active is used to know if the popup is open or not
editable-activateable is used instead to know if that .editable-click anchor should be treated like it is
$(document).on('shown', "a.editable-click[editable-activateable]", function(e, reason) {
return $(this).attr("editable-active", true);
});
$(document).on('hidden', "a.editable-click[editable-activateable]", function(e, reason) {
return $(this).removeAttr("editable-active");
});
The check is pretty much like you've described it
$(document).on("click", ".version", function() {
$this = $(this)
// Check that the xeditable popup is not open
if($this.find("a[editable-active]").length === 0) { // means that editable popup is not open so we can do the stuff
// ... do stuff ...
}
})
For the click on the links, simply catch the click event and stop it:
$("a.editable-click").click(function(e){
e.stopPropagation();
});
The clicks within X-editable are a bit trickier. One way is to save a flag on weather the X-editable window is open or not, and only take action if X-editable is closed
var editableActive = false;
$("a.editable-click").on('shown', function(e, reason) {
editableActive = true;
});
$("a.editable-click").on('hidden', function(e, reason) {
editableActive = false;
});
$("div.version").click(function(e) {
var $this;
$this = $(this);
if(editableActive === false){
if ($this.hasClass("selected")) {
$(this).removeClass("selected");
} else {
$(this).addClass("selected");
}
}
});
Fixed Fiddle
It's not pretty, but we solved this problem with something like:
$('.some-class').click(function(event) {
if(event.target.tagName === "A" || event.target.tagName === "INPUT" || event.target.tagName === "BUTTON"){
return;
}
We're still looking for a solution that doesn't require a specific list of tagNames that are okay to click on.
I have a <ul> that when clicked, toggles the visibility of another <ul>. How can I attach an event to the body of the page when the <ul>s are revealed so that the body will hide the <ul>.
I am new to writing these sorts things which bubble, and I cannot figure out why what I have done so far seems to work intermittently. When clicked several times, it fails to add the class open when the secondary <ul> is opened.
And of course, there may be an entirely better way to do this.
$(document).on('click', '.dd_deploy', function (e) {
var ul = $(this).children('ul');
var height = ul.css('height');
var width = ul.css('width');
ul.css('top', "-" + height);
ul.fadeToggle(50, function () {
//add open class depending on what's toggled to
if (ul.hasClass('open')) {
ul.removeClass('open');
} else {
ul.addClass('open');
}
//attach click event to the body to hide the ul when
//body is clickd
$(document).on('click.ddClick', ('*'), function (e) {
e.stopPropagation();
//if (ul.hasClass('open')) {
ul.hide();
ul.removeClass('open')
$(document).off('click.ddClick');
// }
});
});
});
http://jsfiddle.net/JYVwR/
I'd suggest not binding a click event in a click event, even if you are unbinding it. Instead, i would do it this way:
http://jsfiddle.net/JYVwR/2/
$(document).on('click', function (e) {
if ( $(e.target).is(".dd_deploy") ) {
var ul = $(e.target).children('ul');
var height = ul.css('height');
var width = ul.css('width');
ul.css('top', "-" + height);
ul.fadeToggle(50, function () {
//add open class depending on what's toggled to
if (ul.hasClass('open')) {
ul.removeClass('open');
} else {
ul.addClass('open');
}
});
}
else {
$('.dd_deploy').children('ul:visible').fadeOut(50,function(){
$(this).removeClass("open");
})
}
});
If you need to further prevent clicking on the opened menu from closing the menu, add an else if that tests for children of that menu.
You dont' really need all that code. All you need is jquery's toggle class to accomplish what you want. simple code like one below should work.
Example Code
$(document).ready(function() {
$('ul.dd_deploy').click(function(){
$('ul.dd').toggle();
});
});
Firstly, you are defining a document.on function within a document.on function which is fundamentally wrong, you just need to check it once and execute the function once the document is ready.
Secondly why do you want to bind an event to body.click ? it's not really a good idea.
Suggestion
I think you should also look at the hover function which might be useful to you in this case.
Working Fiddles
JSfiddle with click function
JSfiddle with hover function