So im trying do disable links on some <li> ellements that have been loaded in from another page using an .load() function, but for some reason i'm not able to effect those list items.
var from_post = false;
$(document).ready(function() {
//so this is the function that loads in data from another page
$("#gallery").load('http://localhost/index.php/site/gallerys_avalible/ #gallerys_avalible'), function() {
console.log('hello');
// sense there are no other li elliments on the page i thought this
// would be okay. but this function never gets called, i've moved it
// all over i just recently attached it to the load function thinking
// that maybe if the load was not complete it would not run, but i
// have had no luck.
$('li').click(function (e) {
e.preventDefault();
console.log("I have been clicked!");
return false;
});
};
$('#addNew').click(function () {
console.log('i got called');
$('#new_form').fadeIn(1000);
});
$('form').submit(function() {
if(from_post) {
//submit form
return true;
} else {
//dont submit form.
return false;
}
});
any help would be greatly appreciated, oh and the other thing is that i can run this function through firebug, and it works 100% fine. so im stumped.
You are closing your call to .load() too early. You have:
$("#gallery").load('http://...'), function() {
That just calls load and then declares a function. But, that function is not bound to the success handler and it will never be executed. You need the ) to be on the other side of the function declaration so that the function is included as a parameter to your call to load:
$("#gallery").load('http://...', function() {
...
});
Fix that and your code works: http://jsfiddle.net/gilly3/WdqDY/
Try a future-proof event observer like live or delegate:
$('li').live('click', function(){})
or, this method is preferred if you know the parent:
$('#gallery').delegate('li','click',function(){})
The reason for needing this is your click events are being bound to elements that are on the page at the time of the binding. Any li's added later will not see that binding which is how live or delegate works. They bind to the parent and traverse the child nodes every (click in this case) event to see if the event applies to an existing child.
Use .live('click', ...) or .delegate() instead of .click(...).
Related
Right, I'm getting quite aggitated with this. I'm probably doing something wrong, but here's what I'm doing:
$(document).ready(function () {
$('#somebutton').click(function () {
openPage1();
});
$('#someotherbutton').click(function () {
openPage2();
});
});
var openPage1 = function () {
$('#iframe').attr('src', 'someurl');
$('#iframe').load(function () {
$('#button').click();
});
};
var openPage2 = function () {
$('#iframe').attr('src', 'anotherurl');
$('#iframe').load(function () {
$('#anotherbutton').click();
});
}
Whenever I click somebutton everything goes as expected. However when I click someotherbutton. The .load() from openPage1() is called first and I can't find a way to stop that. The .load() from openPage1() has a button with the same name, however on openPage2() I need to modify the contents before clicking the buttons.
I need to use .load() because I can't click the buttons before the document is ready.
Basically what I need is two seperate .load() instances on the same iframe, that don't fire off on each other.
Besides that, maybe my understanding of jQuery/JS is wrong, but shouldn't the .load() events only be listening after clicking the corresponding button?
Can someone help me out, this has been keeping me busy all afternoon.
Try using on, and once loaded, unbind
$("#iframe").on("load", function(){
$(this).off("load");
$('#button').click();
});
That way you remove the handler you put up before the second button is clicked?
By writing : $('#iframe').load(function (){ $('#button').click(); });, you are adding a listener on the load event, which will stay and be re-executed on each subsequent reload of the iframe.
Here is a jsfiddle to demonstrate this : click on the "reload" button, and see how many times the "loaded" message appears in your console.
in your case, if you click on #somebutton, then on #someotherbutton, after the second click, you will have two handlers bound on the load event, and both will be triggered.
If you click 5 times on #somebutton, you should end up calling 5 times $('#button').click().
If you want to execute it once, you can follow Fred's suggestion, or use jQuery .one() binder :
$('#iframe').one('load', function(){ $('#button').click() });
Here is the updated jsfiddle : 'loaded' should be displayed only once per click.
Maybe try and replace the lines in both functions like this:
$('#iframe').load(function() {
$('#anotherbutton').click();
};
$('#iframe').attr('src', 'anotherurl');
Otherwise it might be firing the event before the new event-handler has been set.
This isn't really an answer to your problem Now it is an answer, but I think utilizing functions as they were intended could be beneficial here, i.e.:
//Utilize a single function that takes arguments
var openPage = function (frame, src, eventEl) {
frame.attr('src', src); // If you pass frame as a jQuery object, you don't
frame.on("load", function(){ // need to do it again
$(this).off("load");
evEl.click(); //Same for your buttons
});
}
//Simplify other code
$(document).ready(function () {
$('#somebutton').click(function () {
openPage($("#iframe"),somehref,$("#buttonelement"));
});
$('#someotherbutton').click(function () {
openPage($("#iframe"),anotherhref,$("#someotherbuttonelement"));
});
});
I have two parts of scripts.
Part 1 :
$("mySelector").click(function() {
alert('you call me');
})
Part 2 :
$("mySelector").click(function() {
if(myCondition) {
//how can i prevent calling the first function from here ???
}
})
The whole problem, is that i have no access to part1. So i need to unbind the event allready specified in part 1, if myCondition is true, but otherwise i need to call the first function.
Thanks
UPDATE:
Thank you. I didn't know about stopImmediatePropagation(). But i feel, that there must be something like that :)
But actually in my case it doesn't work :(
Please have a look at my site
http://www.tours.am/en/outgoing/tours/%D5%80%D5%B6%D5%A4%D5%AF%D5%A1%D5%BD%D5%BF%D5%A1%D5%B6/Park-Hyatt-Goa/
Under the hotel description tab i have cloud carousel, when i click on not active image (not the front image), as you can see i'm consoling that i stopImmediatePropagation() there, but the event however calls :(
If your handler is registered first, then you can use event.stopImmediatePropagation like this:
$("mySelector").click(function(event) {
if(myCondition) {
event.stopImmediatePropagation();
}
})
Be aware that this will also stop event bubbling, so it will also prevent click handlers on parent elements from being invoked.
Update: If this does not work, then your handler is attached after the one you want to control. This is a problem that makes the solution much more difficult. I suggest seeing if you can bind "before the other guy", otherwise you will have to unbind the existing handler and then conditionally invoke it from within your own by retaining a reference to it. See jQuery find events handlers registered with an object.
No access:
$("#mySelector").click(function() {
alert('you call me');
})
Access:
var myCondition = true, //try false too
fFirstFunction = $("#mySelector").data("events").click[0].handler;
$("#mySelector").unbind("click");
$("#mySelector").click(function() {
if(myCondition) {
alert(myCondition);
} else {
$("#mySelector").click(fFirstFunction);
}
});
Look at this example
You can call
$('mySelector').unbind('click');
to get rid of all the click handlers. If your script is loaded after the other one (which appears to be the case), then that should do it. However note that it does unbind all "click" handlers, so make sure you call that before you add your own handler.
If you can't ensure your handler is attached first, try the following code:
var events = $('mySelector').data("events"); //all handlers bound to the element
var clickEvents = events ? events.click : null;//all click handlers bound to the element
$('mySelector').unbind('click'); //unbind all click handlers
//bind your handler
$("mySelector").click(function(e) {
if (myCondition) {
//do what you want
} else {
//call other handlers
if (clickEvents) {
for (var prop in clickEvents)
clickEvents[prop].call(this, e);
}
}
})
Update:
Above code is for jQuery 1.3.2
Above code is based on internal implementation of jQuery 1.3.2, so please check it carefully once you update jQuery.
return false;
-or-
event.preventDefault();
I have a click handler that reads the href attribute of an a tag and loads the new content via ajax. The function returns false so it doesn't follow the href url. This works once, but each time thereafter, the function does not appear to get called and the content is not loaded asynchronously, but instead follows the link in the browser.
$ ("document").ready( function () {
$(".post_update").click( function () {
$("#dashboard_content").html(ajax_load).load($(this).attr('href'));
return false;
});
});
Edit
you should not use document as a string its an object itself try the belwo code.
Since the link is inside dashboard container you should use live in this case.
$(document).ready( function () {
$("a.post_update").live('click', function () {
$("#dashboard_content").html(ajax_load).load($(this).attr('href'));
return false;
});
});
If .post_update is inside #dashboard_content, the problem is that the element to which the event handler was bound, is now gone. The simplest solution, is to use the jQuery.live method. So your code would look like:
$(document).ready(function () {
$(".post_update").live("click", function (e) {
$("#dashboard_content").html(ajax_load).load($(this).attr('href'));
return false;
});
});
I have 2 questions
I am using the hashchange plugin .... so I want to know would a function as below, be called everytime a hashchange occurs... because I have something like that in my code and the code function apparently doesnt seems to be called
$(document).ready(function()
{
// function here
});
On the other have if I remove the hashchange as in If i make http://abc.com/a.htm#http://abc.com/b.htm as http://abc.com/b.htm
the code works fine
the problem is the structure of my pages is a bit different .... here is the fiddle with the page structure that explains on a higher level what I am trying to achieve jsfiddle.net/vBKWd/9 ... on hash change jus the div c on my page 1 gets replaced by page 2 and vice versa .... and the js function that I have shown below is getting called only once and not after hashchange
Or is therre any way I can bind the function with the div so that whenever the div is replace the function get called?
No, a ready handler is only called on document ready, not on hash change. You should use the hashchange event for that, instead:
$(window).hashchange(function () {
// function here
});
Sample: http://jsfiddle.net/vBKWd/2/
In document ready wirte code below
$(window).bind('hashchange', function () {
//code here
});
use live in this case
$(document).ready(function()
{
$(selector).live(hashchange, function(){
// your code goes here
});
});
I'm trying to stop the browser from following certain links, rather I want to unhide some Divs when they are clicked.
I'm having trouble just getting the links to not be followed though.
Here's what I have:
var titles = $('a.highlight');
jquery.each(titles, function(){
this.click(function(){
return false;
});
});
It seems like the click handler is not being assigned. What am I missing?
Try
this.click(function(e){ e.preventDefault(); }
Actually, it looks like you might need to use the jQuery constructor on this:
$(this).click(function(){ return false; }
You could also try using parameters on the each function instead of using this:
jQuery.each( titles, function(index, elem) { $(elem).click( function() { return false; } ) } );
Personally, I would just do titles.each( ... though. In that instance you can use this to bind the click handler. I am not sure off the top of my head what this binds to with jQuery.each
Or just calling click on titles:
titles.click( function() { return false; } )
That will bind click to every element in titles. You don't need to loop through them.
You can compress that jquery a bit:
$('a.highlight').click(function() { return false; });
You should also make sure that:
There are no other click handlers registered for those elements later on.
The code you have is attaching after the elements have loaded. If they're not completely loaded, they won't be found in the $('a.highlight') selector. The easiest way to do this is to put your code in a $(document).ready(function() { *** code here *** }); block.
Edit: As per other responses - the problem was that this represents a DOM object, while $(this) is a jquery object. To use the .click function to attach a handler, you need a jquery object.
In short, using this inside the each loop won't work with what you're trying to do. You'll need to get a jquery representation by using $(this) instead.