Distinguishing Characters In The Keydown Event?
Jan 24, 2010
I am trying to handle keystrokes on a text input element, in the keydown event. I need to know what character is about to be inserted into the string. I am able to get it for almost all letters, numbers and symbols using a combination of event.shiftKey, event.charCode, and String.fromCharCode() and some hard-coded lookup tables. (i'm aware that this is probably not going to work on non-standard/non-american keyboard layouts)
Unfortunately I can't get the character for a few: question mark, angle brackets, underbar, colon, and a few others. They all have charCode of zero, and nothing else in the event indicates which is which. Other than waiting till the element's value has changed (i.e. the keyup or keypress event), what can I do to tell which key is pressed?
[Code]...
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Aug 22, 2010
I have a parent element that registered to the keydown event.somewhere down the hierarchy I have a table and some buttons. It appears that after I press the buttons, I only get the keydown event in the parent after 3 key strokes.I put breakpoints and the event is simply not called.I'm guessing this is a focus issue, but couldn't make it work.
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Nov 11, 2011
I have requirement to move focus to previous button when onkeydown event occurs on tabout from current button. Below is snippet of code.
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
<script language="Javascript">
[Code]...
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Aug 30, 2011
I'm trying to get a keydown function to trigger an event... The same as the onclick event I currently have working. I got the buttons to work on keydown, but I cant get them to work just like the onclick. Trying to get them to do the same thing.
[Code]...
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Jul 11, 2010
Let's say I have a page with a counter (with an initial value of zero) and nothing else.
Here's what I want to do:
1) I press and HOLD a key down
2) The counter goes to one
3) I let go of the key
4) The counter still reads one
[Code]...
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May 25, 2010
So I have an event handler for the KeyDown event in a Javascript file but for some reason it does not get called the first time a key is pressed. However, if a key is pressed or a mouse button clicked then the next time I press a key it does get called. Here is the relevant code:
...........................
// Other stuff
$(function()
[code]....
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Aug 17, 2011
I have a code for the keydown event:
-when you press the UpArrow key the image moves up
-when you press the DownArrow key the image moves down.....and so on
But don't forget that this is under the keydown event...so when I keep pressing the UpArrow key the image moves up but when I release the key the image still moves up. I already put the code $('myImage').stop(); on my image on keyup event but this doesn't do anything. There is a code to clear my memory from pressed keys or something?
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Dec 14, 2011
When I upgraded to jQuery 1.7.1 (from 1.5.x), I found that an exception was suddenly thrown on every keydown event on an INPUT type="text". I still get the exception when I remove my change and keyup events. Previously I bound to these elements with .live, but I have the same issue with the new .on, so I don't think this problem is even related to my bindings.
The exception is as follows (from the custom WebKit frame where my script runs):
This occurs on line 3255 of jquery-dev-1.7.1.js, which reads:
I did some poking around and found that handleObj.origType is "keydown". There is no jQuery.event.special["keydown"] defined, meaning that the first part of the expression evaluates to undefined (there is no such thing as {}.handle). The second part of the expression, handleObj.handler, evaluates to true. The entire expression therefore evaluates to true, which can't be applied as a function.
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Jun 10, 2010
I am trying to use the jquery keydown event.I wan to fade in a div that is a form then when the user presses keycode 17 meaning control key this div and form will fade in at the center of the screen.here is the code I have:
<html>
<link rel="stylesheet" type="text/css" href="/home/main.css"/>
<script type="text/javascript" src="http://www.domain.com/pngFix/jquery-1.3.2.min.js"></script>
<script type="text/javascript"[code]...
This is in a php file and echoing the code. So the " " ignore it it's just saying to php that those are to be echoed as " " This code isn't working. I would press control key but no fade in occurs. I include this php file to all my websites webpages which are php files.
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Jan 3, 2010
The idea is simple, one area map replaces the image with image A, the other area map replaces the image with image B sort of like this page. The code I have so far is below. How this is supposed to go?
Code:
img.imenu {margin: 2px 0px; height: 20px;
width: 175px; border-width: 0px;
border-width: 0px; margin-top: 2px; margin-bottom:2px;}
</style>
<script type="text/javascript">
function mouseOverMap(area) {
if (var image = document.getElementById("TheMap")){
image.src = image.src.replace("old.png","new.png");
} else if (var image = document.getElementById("TheMap2")){
image.src = image.src.replace("old.png","new2.png");
} function mouseOutMap(area) {
var image = document.getElementById("TheMap"); // not sure what you want to do with this
image.src = image.src.replace("new.png","old.png");
}
</script>
Code:
<div>
<img id="TheMap" alt="" src="images/logo1_4old.png" width="530" height="102" USEMAP="#red" USEMAP="#orange"/>
<map name="red">
<area id="area1" shape="polygon" coords="59,47, 59,7, 68,24, 86,19" href="[URL]"
onmouseover="mouseOverMap(this);" onmouseout="mouseOutMap(this);" />
</map>
<map name="orange">
<area id="area2" shape="polygon" coords="62,50, 89,20, 85,39, 102,49" href="[URL]"
onmouseover="mouseOverMap(this);" onmouseout="mouseOutMap(this);" />
</map>
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Sep 4, 2010
What I'm trying to do is display a menu on keydown, having it go away when the key is pressed again. Specifically I'm using the "M" key. Here's my code so far:
[Code]...
The highlighted section is what I want. I already know that this won't work, because I've tried it then re-read the description and realized that ".toggle" binds to the click function. That's fine, but I need the same functionality on a ".keydown" event.
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Jan 14, 2010
Code:
<div onclick="alert('<');" > click 1 </div>
<div onclick="alert('<');" > click 2 </div>
edited: the first alert has this in the brackets: &l t; i.e. the html code for < but for some reason this foum converts it. and i thought html was off?
I was expecting the above to alert the text in the brackets exactly as written in the code for both divs. However both events alert '<'. Why is that? I want to be able to pass '<' as an agrument to events without being converted, because that is what is happening. How may I prevent it?
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Apr 6, 2010
I want to open a new tab "[URL]" when the user presses a key. How can this be done?
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Jul 20, 2005
Can someone continue this article to Netscape versions > 4.x
http://support.microsoft.com/defaul...kb;en-us;184801
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Jan 25, 2006
I am having problems with the code below (obviously) coming up with illegal character for various characters within the field name
which is: S_Gift Finder1_0
I have tried various ways of escaping the characters but to no avail.
I am unable to change the name of the field as it it comes from an external off-the-shelf package. Code ....
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Sep 19, 2007
I have character counter for textarea wich counting the characters.
Special character needs same place as two normal characters because of
16-bit encoding.
Counter is counting -2 when special character is added like some
language specific char.
How to count specials like 1 char?
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Jul 23, 2011
Could anyone shed some light on why this might not be working? Nothing happens when I press either the left or right key... Well, I have put an alert screen in there that does work - the problem is that I want the a#previous_link to be followed, but nothing happens!
[Code]...
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Jan 21, 2010
I am making a hta file, I have made a script in it to detect keydown but it never seems to work. Below is my code.
HTML Code:
function detect(){
if (event.keyCode == 27){
window.location = "1.htm";
}
else if (event.keyCode == 116){
return false;
}else if (event.keyCode == 117){
window.location = "2.htm";
}else if (event.keyCode == 119){
window.location = "3.htm";
}else if (event.keyCode == 120){
window.location = "4.htm";
}}
document.onkeydown = detect;
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Aug 6, 2009
How to capture keypress or keydown in textbox using asp.net with c#.net.
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May 18, 2009
I currently have 3 jQuery events assigned to the document keydown, keyup and click.
Here is my code:
var logkeydown = false;
$(function(){
$(document).keydown(function(e){
var key; e?key=e.keyCode:key=event.keyCode;
[Code].....
They toggle the boolean value of whether the keyboard key 'e' is currently pressed. If so, when the user clicks any of the site, I have a Thickbox fading in. This works great in Firefox and Safari, but IE7 begins to fade in the Thickbox (btw, I slightly altered the thickbox code to fade it in/out) but halts half-fade until the 'e' key is released.
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Jan 26, 2010
I have a slight problem in FF3.5 that unbind('keydown'); is not working properly..
$("#q").unbind('keydown');
$("#q").keydown(function(e){
var code = (e.keyCode ? e.keyCode : e.which);
if(code==40 || code==38) {
var totalResults=$("#quick-search-results li");
var selectedResults=$("#quick-search-results li.qs-selected");
if(code==40) {
var nodeIndex=($("#quick-search-results li.qs-selected").length<=0) ? 0 : $("#quick-search-results").index('li.qs-selected');
alert(nodeIndex);
}}}); // end keydown
The above code alerts once on first keydown (with the down arrow key [code==40]), twice on the second, three times on the third and so on.. it worked fine in FF3 but a recent upgrade to FF3.5 seems to have broken the functionality..
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Jan 11, 2012
The event which in the following keydown function code is not returning the correct key codes. I have checked this in Chrome using the developer tools and the console.log(e.which) statement in my code.
var KEY = {
UP: 38,
DOWN: 40,
W: 87,
[Code]....
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Dec 9, 2010
Im trying to add a class to an element when the down arrow is pressed using keydown but once you release the down arrow the class is removed from the element.Is this normal behaviour?
$('#searchcontainer').keydown(function(e) {
if(e.keyCode == 40){
$('#searchresults .searchresult').eq(0).addClass('selected');[code].....
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Mar 4, 2011
i have this jquery script on my photo galery page, it detects left and right key down on keyboard and acts uppon key down.
Is there any way to deactivate it when I click on a text area that is located below each photo? this must be a common issue I think...
Textareas id="comment_"
<script type="text/javascript">
$(document).keydown(function(e){
if (e.keyCode == 37) {
[Code]....
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Oct 26, 2010
I'm trying to get some elements enabled when a user start typing in a input field but without success. I try this codes:
$('#keyword').focus(function() {
alert('Handler for .focus() called.');
});
$('#keyword').keypress(function() {
[Code]....
But none of them works. Just try in this page [URL] and start typing in "Buscar" (spanish) or "Search" (if you change to English) input and see that nothing happen and I don't know why. Note that I wrote alert() just for see if it works or not.
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Aug 2, 2007
Problem:
Depending on an input value, I would like to output greek characters
(f. e. those between U+03B1 to U+03C9. One way would be to define two
arrays: one with the possible input values ("abgde...") and a second
array with the corresponding values ("u03b1u03b2u03b3...").
But I hoped I could skip the second by a computation, f.e. "g" has
index 2 in the first array, so output "u03b1"+2.
This does not work (of course). But do I have a chance to "compute"
the output value?
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