Does anyone know where I can find a complete list of DOM/DHTML event types documented?
I'm trying to learn more about advanced event handling in JavaScript and I'd like to find lists of event types that I can attach/add event listeners to. I've been searching around and I've found a few resources, but nothing that seems complete.code...
The DOM Level 3 specification has a section (1.2.2.2) that talks briefly about "groups" of event listeners. What does this mean? Is this similar to attaching event listeners with a namespace, as in jQuery: "event.my_namespace"?
View 2 Replies View RelatedI feel like I must be missing something simple but I can't put my finger on it...
I'm moderately new to JS (programmed in other languages though) and am working on a Google Maps project.
This piece of code should show an alert of the region's name when a map polygon is clicked. Instead, no matter what polygon is clicked, it only does the name for the LAST iterated placemark. code...
What am I missing? What would be a better way of handling this?
Here's the situation: I have a javascript object for controlling a custom DHTML scrollbar. So that I can use more than one on a page, the event listeners need to be passed a reference to the particular instance of the object that each needs to connect to, but as I discovered the hard way, inside an event listener, 'this' returns a reference to the DOM object throwing the event, rather than to the JS object. Short of coming up with a linked list of different objects and having the event handler search through it for the right object when an event is generated, then writing a reference to that object to some global variable, is there any convenient way to tie this together? I hope I've made myself clear enough...
View 5 Replies View RelatedI'm having problems removing the event listeners, they dont seem to be removed
(I am currently only checking for non-ie browsers) code...
So I know all about the caviats of the 'this' keyword when calling object functions from event listeners:
Code:
var foo = {bar: true, zoo: function() { return this.bar; }};
foo.zoo();
> true
a = foo.zoo;
a();
>
And I know that I can get around this by using an anonymous function so that 'this' is preserved in it's original context:
[Code]...
But then someone pointed out this article on memory leaks when using anonymous functions to call object methods because the anonymous function gets access to ALL variables in the enclosing environment and my not be properly disposed of by the garbage collector [URL] So that lead me to think about using a "3rd-person" approach to referencing object properties from within object methods.
[Code]...
I have PHP file called file1.php with an empty <div></div> in the middle. I've added a 'load' event listener so that on page load, it calls an AJAX function that calls file2.php. file2.php creates a table and loads it into the <div></div> in file1.php.
file2.php has <a> tags in it's <th> columns and I wish to trap when a user clicks on the column heading. The old way was to use the onclick() method but I'd rather use event listeners.
Here's my problem. I am getting "obj has no properties" when trying to add those listeners. I *think* it is because the code in file2.php isn't part of the original DOM tree for file1.php. So how can I use event listeners instead of onlclick()? I know I can add top the DOM by creating elements and appending them but that adds to the HTML code and my code is already in place via the AJAX call. What to do...? DO I just use the old passe onclick() method?
I'm trying to add event listeners to multiple elements of the same class. The DOM is something like this [code]...
View 5 Replies View RelatedWhen catcheck1 is unchecked, I want catcheck9 to uncheck. Why does this not work?
<html><head>
<script type="text/javascript">
// Checkbox event listeners.
function checkboxs() {
document.mapform.catcheck9.checked = false;
}
</script></head><body>
<form action="" name="mapform" id="mapform">
<input type="checkbox" id="catcheck1" name="catcheck9" onclick="checkboxs()" checked />
<input type="checkbox" id="catcheck9" name="catcheck9" checked />
</form></body></html>
I am creating JS objects that have some properties that contain DOM nodes, and some of these DOM nodes have event listeners attached to them. When I delete such objects, do I first need to remove the event listeners attached to some of the DOM nodes? And do I need to use removeChild on the DOM nodes that are properties of the object? Or does JavaScript take care of all that?
View 1 Replies View RelatedJavaScript hides its memory structure.
I know that numbers, booleans, null and undefined are value types
(value is directed saved in a variable).
I want to know:
- How JavaScript distinguishes value types from reference types by
seeing the variable content?
- How many bytes are allocated in memory when I declare the following?
var i;
I can program in JavaScript without understanding them.
But I'm curious.
I know this isn't a jQuery question per se, but maybe there is an easier way to do this is jQuery than in javascript?
<script>
I was wondering if there is a better way to accomplish the above? Rather than directly changing the innerHTML of the element is it possible to add a onclick listener (or another javascript listener) to the element in a more direct way without having to go through the html.
I have a quandary of sorts here dealing with a list of checkboxes and the hiding/showing of a few divs associated with the checkbox selection. Here's basically what I need to do: Hide the lower div if no checkbox is selected. If any one of the first 6 checkboxes are selected, and NOT any of the remaining 6, then show the div. If at any time during selection one of the remaining 6 checkboxes are selected, then hide the associated div. Note this code doesn't really do much. I'm still trying to architect a solution that's best.
var aThroughf = false;
var gThroughl = false;
$('[name="'+q2030.name+'"]')).live('click', function() {
[code]....
I'm trying to come up with a better architecture for dealing with multiple listeners in a multi-page questionnaire. Here's the general structure I'm looking to implement:
1. Set up CSS for animation
2. Look for preconditions
3. Initialize listener
4. Execute animation
Some issues to consider:
1. Some questions have dependencies that show or hide depending on what is selected in a parent question.
2. Needs to be IE 6 compatible.
3. It should be simple enough so that all you need to do is add a new question to a JSON object, which is what I have set up right now.
Some code (the looping structure that reads each question):
var newQ = eval(q);
$.each(newQ, function () {
// 1 - Setting CSS for each listener
$(this.css).css({'width': '1500px', 'float': 'left', 'clear':'both'});
[Code].....
The problem here is that when I do a console.dir on $.each(this.value.length), it counts each character, as opposed to counting the number of elements in the array. Should I be doing an eval on q? Why or why not? If I could get this up and running, it would make my life 100x easier, as there are hundreds of questions, and I'd want to make this all data driven.
i am using asp.net listbox and want to add double click & keypress(enter) key event
i amuisng
function lstDblClicked()
{
for (var i = 0; i <document.Form1.lst_name.options.length; i++)
{
[Code].....
I have taken over from a developer who has used javascript to add additional text input boxes to a form so there is no limit to the number of input boxes there can be. I have got a jquery autocomplete function that works fine if the input box is added by the server but the listener doesnt fire when the text box is added client side. As with all things this is part of a much bigger project and I only want to change the smallest possible part (add autocomplete to this text input box) MY QUESTION: is it even possible fo ra jquery listener to fire when the input box has been written client side after the page has loaded? Is there a way to "refresh" a listenerto find the new tag that have been added?
View 2 Replies View RelatedHow do I on the change event of a list box open a new url in the current window in which the list box resides. I'm not using frames.
View 2 Replies View RelatedI am working on creating a JQuery program that will take an unordered list and dynamically expand it using ajax calls. This is my code:
$(document).ready(function() {
$('.child').click(function(event) {
event.stopPropagation(); var uid = $(this).attr('id').substring(10);
[code]....
I have a nested lists. I'm using hover event to trigger an event. But when I hover child nodes, the event of theancestor list is being fired. How can I get rid of this situation
View 1 Replies View RelatedI have made a drop-down list on my html form using <select> tag. I am using a onchange event for this select tag. My problem is that the onchange event triggers only when I use the mouse to change the value to drop-down list. When I use tab key to focus on the list and then change the value using up-down keys, the onchange event does not get triggered.
View 5 Replies View RelatedI want to reload an html page onChange event of dropdown list and retain the old values filled in the page.
View 1 Replies View RelatedCode JavaScript:
var listItems = "";
$.each(msg.d, function(index, value) {
listItems += "<li><a href='#' class='" + value.Availability + "' title='" + value.Time + "' >" + value.Time + " - " + value.Availability + "</a></li>"
});
var teeTimeLinks = $(listItems + 'li');
$.each(teeTimeLinks, function() {
var link = $(this).find('a');
link.bind('click', function(event) {
event.preventDefault(); //stop the link from going to href
TeeTimeSelected(this);
});
});
The above code works. BUT, msg.d returns 80 objects. We then loop through it and make our list items. AND then we loop through it again and apply the click event. How can this be optimized into one loop?
I got problem in using this code:
Code:
The problem is...when I type in search textfield it focus in the name list..like for example i type a after I press a it was focus in the firstname, which is wrong..I think it cause from the javascript code..I want to happen is i continue typing in search textfield.
How do I get the childelements of a div, but only the child elements that are "ahref" tags?
for example:
<div id="someDivID">
<a href="somepath.html">link 1</a>
<a href="somepath.html">link 2</a>
[code]...
I want all the childElements under someDivID that are "a href" types...I am using prototype: I figured the following would work, but didn't.
$('someDivID').childElements.getElementByTagName('a')
function aa() {};
var bb = new aa();
var dd = new function cc() {};
aa.prototype.rr = 100;
cc.prototype.rr = 100;
---------------------------------------------------------------
i wrote the code above that makes two functions and two object for
those.
bb(object)<-aa(function),
cc(object)<-dd(function).
i think it's all the same way to make an object for a function.
but if u try to debug,
bb object has rr right after "aa.prototype.rr = 100" statement
but cc deosn't have rr variable.
can anyone explain it why?
<div class="wrapperAttribsOptions">
This pice of code is dynamically created by my shopping carts admin section which is an attribute for a certain product.
The problem I have is that all the attributes are displayed in an array and positioning each is not possible (well, I have posted a query in another forum with regards to that). I have taken the code, as viewed in the source code, and added it in where I please e.g. radio buttons, checkboxes etc, which function perfectly.
This does make 'duplicate' field but I have used display:none on the generated code which hides it. I have found a snippet of code which fixes issues will type=text fields....
But this can not be done when it comes to type=file.
Once you browse and select your image, i need the directory to be entered into the 'real' field for uploading when submitted.