Tree Object, Associate Keyboard Events To It?
Aug 31, 2009i have a tree object, how can i associate keyboard events to it?
View 1 Repliesi have a tree object, how can i associate keyboard events to it?
View 1 RepliesIt's pretty common to assign a click even to a <div> (or other tag), such as:
Code:
// JQuery
$(document).ready(function(){
$("div").click(function(){[code]....
Of course this event won't be accessible from the keyboard, which might be nice. Now if it where an <a> tag, you can do this:
Code:
$(document).ready(function(){
$("a").click(function(e){
alert("clicked");
e.preventDefault();
});
});
The click event will fire if you click the <a>, OR if you tab to it with your keyboard and hit Enter.My question is: is there a way to make elements other than <a> tags accessible in this way? I recently discovered if you define a tabindex on your div, such as <div tabindex="0">test</div>, you can tab to that div, but click events don't seem to fire if you use your keyboard. Are <a> tags the only tags that can work in this way?
I am trying to get this code to work in IE. It works on Firefox, but not on IE. Basically it blocks out scrolling the page down with space button, and registers up and down keys to run some code. The entire case statement including event registering and my code works completely fine in FF but it just won't work in IE (meaning that I can scroll down with space, and up and down with the up and down keys respectively).
By the way I put this function in the HEAD section.
window.onkeydown = function(event)
{
// No space scrolling!
switch (event.keyCode)
[Code].....
I have JS object w/ following structure:
PHP Code:
json_data_object.422.name
thta should of out put me "hello world" as it is what it is in array but it does not as there is 422 there That's my ID from database, and I gotta use itNow, if I change that ID to something in letters say to "i" then everything is fine. ex
PHP Code:
json_data_object.i.name
That one would work, but then I have to chnge JSON string thta pulls data from DB and i cant really do that...So the question is how can I make 422 (numbers) works the same way as just string values in the array/object tree?
For example I have a HTML table...
name | grade | action
bob | 1.0 | [button class="button" id='1']
jack | 2.0 | [button class="button" id='2']
john | 3.0 | [button class="button" id='3']
When I click the button,
[Code]...
so if I were to press buttonid 1 how do I get the grade '1.0' without having to open the database?
How do I associate a button with a function andn still have it display text, click to calculate,and start a function in JavaScript
View 1 Replies View RelatedI am trying to use DOM to create a UI for editing info pulled from a database. The info pulled are the locations of a given company. So, company A might have 2 locations (address, city, zip), and this is the info I want to present.
The way I have it now I use dom to parse the returned XML file and display the location info for each location on a seperate line. At the end of each line I want a button that the user can click which will then replace the current line (just text) with 3 input boxes populated with the values for address, city, zip.
Another button (UPDATE) will then be used to call a function which will update the db with the new location information. This is all no problem, but the part I cannot fathom is how do I associate the "location id" (from the database) with the UPDATE button on a given line, so that when the UPDATE button is clicked the function it activates will know which location (ie row) in the db to update. Code:
So, if the action was triggered is dbClick or hover or keypress etc, I can run a function with switch(code]..
is this possible ?
I'm having a hard time figuring out how to refer to an object while inside a jquery event function. In the following example, "this" at first is referenced as #myDiv. But inside the draggable event, "this" refers to something else. I am not sure what it is referring to, but how do I reference the original object (Human) from within this event?
var Person = new Human("#myDiv", "my data");
function Human(element, myName) {
this.name = myName;
[Code].....
I am using following JavaScript code to add click event on anchor tags with attribute rel="gcode"
Now I need a script to highlight all anchor tags which have an click event attached with them.
Is it possible using JavaScript to get a list of events attached with an object? Also I will need to check the code used in every event. (It is something like an Quality Assurance or Debugging code.)
Code JavaScript:
function gLinks() {
if (!document.getElementsByTagName) return;
var anchors = document.getElementsByTagName("a");
for (var i=0; i<anchors.length; i++) {
[Code].....
I have a script for a radio player that I'm working on using Windows Media Player. Before I was using the safe WMP 6.4 object model but because of feature requests I've had to include support for more recent WMPs.
I have a javascript class that wraps the versions and depending on which version is being used it calls different methods. I was wondering if there was a way to assign the events of WMP to functions in javascript, but without using <script for=WMP event=blah> type tags. Code:
Ive been working on a site with a dropdown menu. its styled with css and animated with java i would like to add support for keyboard navigation.
var DDSPEED = 5;
var DDTIMER = 5;
main function to handle the mouse events [code].....
I want to use a select object in asp and have the user pick
something from this select and have javascript open a window fired by
an event. Once the new window is open it displays another select with
data based on what was picked in the first window. Once a choice is
made in the second window, it allow users to click a submit button and
pass back the chosen value to the calling window. Code:
It looks like when I do $("object").bind("<mouse-event>") the event isn't actually being bound to the element in Chrome and Firefox (not sure about IE). Using $("object").each(function()
[Code]...
This is tough to explain which makes it impossible to search on. I'm guessing this is very basic.
I have an array of objects with variables and ids.
[
{
id: "totalCountOfPeopleToSite",
action: "add",
[Code].....
I loop through this array and create an AJAX request to Google Analytics who returns the data I requested (or an error).
When the data comes back, I want to re-associate it with the object used to make it (as you can see, there might need to be an action performed on it and it should be stored with its ID so I can use it later).
I feel like I've read about a built-in way to pass along arbitrary information (in this case just getting an AJAX request with my made up "id" would be enough), but I can't find it anywhere, and I'm not explaining myself well enough to the Google to get results back.
I'm trying to convert some Procedural code to be more Object Oriented and I'm stuck...
The page is really simple:
It's just a big picture w/ a caption under it, and a few thumbnail pics off to the side, that when clicked, replace the big picture as well as swap out the caption for a new one.
In the code (external JS file):
I've got 2 arrays:
One that holds the thumbnail image file URLs, and the other that holds the captions.
And a function:
I've created an object prototype that I can instantiate in order to:
1.) create the event: do the actual swapping of the thumbnail, and the changing of the caption.
2.) and attach that event to the thumbnail's link onclick event handler.
The code below is the closest I've come to making it work. The problem is that when I click any of the thumbnail links it only executes the last event instead of the one that corresponds to the link that was just clicked. Hopefully someone can take a look at my code and let me know what I'm doing wrong.
Simplified version of the code:
The x,y,z variable assignments are only in the window.onload function for the sake of clarity, but the event object instantiation block has to be in there for anything to work at all.
I know that the event0,event1,event2 objects work, and are attached to the onclick handler because they will swap the last thumbnail and caption when I click any of the thumbnail links. Of course that's the problem now... any click only activates the last event. It's like it attached the last event to all the onclick event handlers.
In fact, if I only create the event0 object, it works like it's supposed to... but when I create the event1 object, it does what it's supposed to and it takes over for event0. Creating event2 makes it take over for all of them. Each subsequent event# object seems to attach its own addy[ ] and caption[ ] to each previous x[ ] link.
I have the following function which gets invoked for mousemove and it works fine for all elements except for elements which are disabled, I am getting "Object doesn't support this property or method" error.
function ddMouseMove(ev){
ev = ev || window.event;
var target = ev.target || ev.srcElement;
if(target.getAttribute('partOf')) { //error on this line for disabled elements
.....
} var dragObj = target.getAttribute('DragObj');
.....
} document.onmousemove = ddMouseMove;
document.onmousedown = mouseDown;
document.onmouseup = mouseUp;
How do I make sure 'ddMouseMove' and other functions above are called only on active elements when mouse event occurs (In other words how to stop mouse events on disabled elements) ? Or is there any alternative solution ?
I am trying to "ajaxify" my site. Now I have one problem:
$("#posts").children().remove();
$("#tag-sidebar").children().remove();
$.each(data.Tags_Sidebar, function (indexInArray, valueOfElement) {
var insert = $("<li>");
[Code]......
Now when I click one of those links (href1, href2, href3) generated, the click event won't execute! What's the problem? Also, is it right that I have to transfer the valueOfElement over, like I did? What does stopEventPropagation do? Prevent the href from being navigated to? That's what I am trying to do.
The data object is JSON fed from here:[URL]
The HTML is here: [URL]
I have a series of images with an animation bound to mouseover and mouseleave events, and I'm trying to get my head around adding a click event that would prevent the mouseleave animation from occurring only for the image that was clicked, preserving everything else as is (until another image is clicked). I've discovered .stop() and I think I'm getting close, but some part of the logic is still escaping me.
View 3 Replies View RelatedWhat does it mean to "walk the DOM tree"? How do you use it?
I hear programmers using this term loosely and I'm not sure what it means. I understand that DOM means Document Object Module and that they are referencing the additional elements whithin (X)HTML.
I am looking for a javascript to build a tree. For example clicking on a +
would expand the tree. Code:
I've got a bit of ajax code that loads some content into a div. What I want to do is alter the href and action of all links and forms loaded into the div.
I thought the cleanest way to do this would have been to recursively look at all the child nodes of the div, and alter the href/action of any link or form elements that I encounter, is this do-able?
I have this script:
PHP Code:
<script type="text/javascript">
function move_nav_2(){
alert("im ok!");
[code]...
But cant work on IE neither Chrome.
Does anyone know how to make a text-inputfield automatically fucused, so when you enter a page you can just start typing without moving the mouse and clicking on the textfield??
View 1 Replies View RelatedI'm trying to do something rather simple. I want to find the only
<form> inside of a <div> named "newreplyform". Here's my code:
var nrf = document.getElementById('newreplyform');
var form = nrf.getElementsByTag("form")[0];
But Firefox gives me an error: Error: nrf.getElementsByTag is not a
function
I'm a Python fanboy, and am just trying to get through some JavaScript
code as quickly as possible. Am I doing something completely misguided?
I need to remove the element with the class "group" on it from the DOM tree with javascript (eventually with prototype, but no other library). I don't only want to hide that paragraph, but remove it entirely from the DOM tree. My solution to use getElementsByClassName does not work.
function hidegroup() {
var group= document.getElementsByTagName("p")
.getElementsByClassName("group");
group.style.display = 'none';
group.removeChild();
}
THE HTML:
<div id="poems">
<div class="poem" id="d1">
<p class="group">
<a href="#">To the top of the page</a>
</p></div>