I hope it's stupid, but my head is today right overloaded:) I have this code and I need to store the pointer on the element which is clicked on and pass it to the callback function. Exactly is it a submit button and after correct ajax submit of the form I want to delete content of them. I've tried lot of these parent(),children(),.. combinations, but it does not work:
$("form :submit").click(function () {
var element = this;
$(this).ajaxSubmit(function(payload, element){
$.nette.success(payload);
$(element).parent().children(".addStatusTextArea").val("");
hideMessage();
}
);
return false;
});
The problem is that element is also specified in your parameters for the callback, leave this out, like this:
$("form :submit").click(function() {
var element = this;
$(this).ajaxSubmit(function(payload) { //no element here in params
$.nette.success(payload);
$(element).parent().children(".addStatusTextArea").val("");
hideMessage();
});
return false;
});
When it's in the parameters a more local element is defined, not what you set it to just before. I'm not sure if your relative .parent().children() call is correct (it could be .siblings(".addStatusTextArea") if it is) without seeing your markup...but your main issue is element not being what you want.
Remove the element parameter from the function passed to ajaxSubmit.
i.e.
$("form :submit").click(function () {
var element = this;
$(this).ajaxSubmit(function(payload){
$.nette.success(payload);
$(element).parent().children(".addStatusTextArea").val("");
hideMessage();
});
return false;
});
Related
I am still new to JavaScript and jQuery, so I am confused as to why the following code is not working as I anticipated. All I am trying to do is save input on a button click (id=recordInput) and display it with another button click (id=displayInput). What I observe is that tempInput is stored, (the code works until that point) but assignment of displayInputs onclick attribute is not executed. My question is, can you not nest a $().click() call inside of another &().click() call?
<script>
$(document).ready(function () {
$('#recordInput').click(function(event) {
var tempInput = $('#testInput').val();
&('#displayInput').click(function(event) {
console.log(tempInput);
});
});
});
</script>
My thinking is this in pseudocode:
assign recordInput onclick attribute to the following function:
store tempInput
set displayInput onclick to alert the tempInput value
what is wrong with my thinking?
NOTE: I did not include any html tags but all of the ids are referenced correctly
It's not working because you have put & instead of $ here
$('#displayInput').click(function(event) {
Fixing this may work, but you shouldn't set event handlers this way. Because every time your first handler function is called it will set an event handler for the second one. You can try with your console.log and you will see that the number of console.log is increasing by every click on #recordInput. So you should better set it like this :
var tempInput;
$('#recordInput').click(function(event) {
tempInput = $('#testInput').val();
});
$('#displayInput').click(function(event) {
console.log(tempInput);
});
I would change
$(document).ready(function () {
$('#recordInput').click(function(event) {
var tempInput = $('#testInput').val();
&('#displayInput').click(function(event) {
console.log(tempInput);
});
});
});
to
$(function(){
var testInput = '';
$('#recordInput').click(function(){
testInput = $('#testInput').val();
});
$('#displayInput').click(function(){
if(testInput !== ''){
console.log(testInput);
}
});
});
You are using & instead of $. Of course, you don't have to format the code exactly like I did.
I have a function which creates a tooltip for specific objects. Currently, I am running a tooltip function after ajax insertions to create and append the new tooltip objects. I am curious if there is a way to use .on() to auto-run the tooltip function on insertion, rather than manually running it.
For instance:
$('[title]').on('inserted', function(){
tooltip(this);
});
I did some reading and it looks like custom triggers might be the way to go, but I'd love if it something like this existed :)
Here's the pseudo code as per request.
$(document).ready(function() {
$('body').on('added','*',function() {
console.log($(this),'has been added');
});
$('body').append('<div>This is the first div</div>');
});
(function($) {
fncs = {
append:$.fn.append,
appendTo:$.fn.appendTo
// etc.
}
// we're assigning the original functions in this
// object to be executed (applied) later
$.fn.append = function() {
fncs.append.apply(this,arguments);
$(this).children().last().trigger('added');
return $(this);
}
$.fn.appendTo = function() {
fncs.appendTo.apply(this,arguments);
return $(this);
// no need to trigger because this function calls the one
// above for some reason, and it's taking care of the
// triggering the right element(s I think)
}
})(jQuery);
This is not the response you're looking for, but I would not attach tooltips directly on elements. Instead I would use a class for the ones I want the tooltip to show on mouseover and use the .on() event handler in the following way:
$('body').on('mouseover','.tooltip',function() {
// show tooltip
console.log($(this).data('tooltip'));
return false;
}).on('mouseout','.tooltip',function() {
// hide tooltip
return false;
});
So that whatever you add to the body (not necessarily as a direct child) will trigger this event handler.
I would probably just create an additional function to assign the tooltip data to each element along with the class.
$.fn.extend({
tooltip:function(text) {
text = text || '';
return $(this).each(function() {
$(this).data('tooltip',text).addClass('tooltip');
});
}
});
$('#someID').tooltip("Click me!");
$('button').tooltip("I'm a button");
I have some functions that are triggered when an element is clicked. The elements are stored in an array. But the value that trigger the functions change. Here is the code for the function:
// first I store the element of a list in an array
var promo = new Array(),
indexOfTheElement = 3;
$('#list li').each(function(){
promo.push($(this));
});
$(myArray[indexOfTheElement]).click(function(){
indexOfTheElement--;
// Do something
return false;
});
Edit: The element of a list are stored in an array, and the function is triggered when you click an element of the list. For example if you click the third element, the function will be triggered, and then it must work when you click the second.
It could be a scope issue, but I believe you want to use bind() and unbind() on each function call. For instance:
var foo = function(){
myArray[index].unbind("click");
index--;
//do something
myArray[index].bind("click", foo);
return false;
}
Inside you event handler unhook current event handler and set the new one, simply declare the function (not use an anonymous function) when you set the click().
$(myArray[indexOfTheElement]).click(doSomething);
function doSomething()
{
$(myArray[indexOfTheElement]).off("click", doSomething);
$(myArray[--indexOfTheElement]).click(doSomething);
return false;
}
try using live() and code inside $(document).ready()
$(document).ready(function(){
var promo = new Array(),
indexOfTheElement = 3;
$('#list li').each(function(){
promo.push($(this));
});
$(myArray[indexOfTheElement]).live('click',function(){
indexOfTheElement--;
// Do something
return false;
});
});
I am using jQuery load() function to load some pages into container. Here is the code:
$('div.next a').live('click',function() {
$('.content').load('page/3/ #info','',function(){
//do something
});
return false;
});
Everything works just fine but the problem is when I quickly double click the div.next link, from console I see that it loads the page twice because I did a quick double click. I could even make it 3 clicks and it will load it 3 times and show in console smth like that:
GET http://site/page/3/ 200 OK 270ms
GET http://site/page/3/ 200 OK 260ms
My question is how to prevent such double clicking and not to let load the target page more then once no matter how many times it was clicked.
Thank you.
Whatever happened to good ol' JavaScript? Why are you all trying to figure it out with pure jQuery?
var hasBeenClicked = false;
$('div.next a').live('click',function() {
if(!hasBeenClicked){
hasBeenClicked = true;
$('.content').load('page/3/ #info','',function(){
//do something
//If you want it clickable AFTER it loads just uncomment the next line
//hasBeenClicked = false;
});
}
return false;
});
As a side note, never never never use .live(). Use .delegate instead like:
var hasBeenClicked = false;
$('div.next').delegate('a','click',function() {
if(!hasBeenClicked){
hasBeenClicked = true;
$('.content').load('page/3/ #info','',function(){
//do something
//If you want it clickable AFTER it loads just uncomment the next line
//hasBeenClicked = false;
});
}
return false;
});
Why? Paul Irish explains: http://paulirish.com/2010/on-jquery-live/
To answer your comment...
This could happen if you have your delegate function nested inside your AJAX call (.load(), .get(), etc). The div.next has to be on the page for this to work. If div.next isn't on the page, and this isn't nested, just do this:
$('#wrapper').delegate('div.next a','click',function() {
http://api.jquery.com/delegate/
Delegate needs the selector to be the parent of the dynamically added element. Then, the first parameter of delegate (div.next a in the last example) is the element to look for within the selected element (#wrapper). The wrapper could also be body if it's not wrapped in any element.
You could try using the jquery one method:
$("a.button").one("click", function() {
$('.content').load('page/3/ #info','',function(){
//do something
});
});
You could unbind the click event with die():
$(this).die('click').click(function() { return False; });
Or you could give the element a .clicked class once it is clicked:
$(this).addClass('clicked');
And check if that class exists when performing your logic:
$('div.next a').live('click',function() {
if (!$(this).is('.clicked')) {
$(this).addClass('clicked');
$('.content').load('page/3/ #info','',function(){
//do something
});
}
return false;
});
Store whether you're waiting for the load in a variable.
(function() {
var waitingToLoad = false;
$('div.next a').live('click',function() {
if (!waitingToLoad) {
waitingToLoad = true;
$('.content').load('page/3/ #info','',function(){
waitingToLoad = false;
//do something
});
}
return false;
});
})()
I'm new to the whole JavaScript and jQuery coding but I'm currently doing this is my HTML:
<a id="tog_table0"
href="javascript:toggle_table('#tog_table0', '#hideable_table0');">show</a>
And then I have some slightly ponderous code to tweak the element:
function toggle_table(button_id, table_id) {
// Find the elements we need
var table = $(table_id);
var button = $(button_id);
// Toggle the table
table.slideToggle("slow", function () {
if ($(this).is(":hidden"))
{
button.text("show");
} else {
button.text("hide");
}
});
}
I'm mainly wondering if there is a neater way to reference the source element rather than having to pass two IDs down to my function?
Use 'this' inside the event. Typically in jQuery this refers to the element that invoked the handler.
Also try and avoid inline script event handlers in tags. it is better to hook those events up in document ready.
NB The code below assumes the element invoking the handler (the link) is inside the table so it can traverse to it using closest. This may not be the case and you may need to use one of the other traversing options depending on your markup.
$(function(){
$('#tog_table0').click( toggle_table )
});
function toggle_table() {
//this refers to the element clicked
var $el = $(this);
// get the table - assuming the element is inside the table
var $table = $el.closest('table');
// Toggle the table
$table.slideToggle("slow", function () {
$el.is(":hidden") ? $el.text("show") : $el.text("hide");
}
}
You can do this:
show
and change your javascript to this:
$('a.tableHider').click(function() {
var table = $(this.name); // this refers to the link which was clicked
var button = $(this);
table.slideToggle("slow", function() {
if ($(this).is(':hidden')) { // this refers to the element being animated
button.html('show');
}
else {
button.html('hide');
}
});
return false;
});
edit: changed script to use the name attribute and added a return false to the click handler.
I'm sure this doesn't answer your question, but there's a nifty plugin for expanding table rows, might be useful to check it out:
http://www.jankoatwarpspeed.com/post/2009/07/20/Expand-table-rows-with-jQuery-jExpand-plugin.aspx