jQuery - keydown() on div not working in Firefox
I have the following example code, which should pop up an alert when the div is in focus and a key is pressed. This does what I expect in IE 7, but not in Firefox 3.5.5. What am I doing wrong?
<html>
<head>
<title>JS test</title>
<script type="text/javascript" src="jquery-1.3.2.min.js"></script>
<script type="text/javascript">
$(document).ready(functio开发者_开发技巧n() {
$("#testdiv").keydown(function(event) {
alert("Pressed " + event.keyCode);
});
});
</script>
<style type="text/css">
#testdiv
{
width: 50;
height: 50;
background-color: red;
}
</style>
</head>
<body>
<div id="testdiv"></div>
</body>
</html>
EDIT: I've just tried replacing keydown with keypress and keyup and those don't work either. Incidentally, I also made sure that my "Find as you type" setting is turned off just in case.
You need to give the div a tabindex so it can receive focus.
<div id="testdiv" tabindex="0"></div>
I got the above to work in Firefox, like this:
$('#domainTableDiv').keydown(function(e) {
alert(e.type + " button(" + e.which + ") ctrl(" + e.metaKey + ") alt(" + e.altKey + ") shift(" + e.shiftKey + ")" );
});
$('#domainTableDiv').focus();
Once the DIV has focus set on it explicitly, key events fire just fine in Firefox 4.0.1
I don't expect this will work since a div is not something that should receive key events like that. If you placed an <input> inside of that div, and the user pressed a key in the input itself, the event will bubble up to the div and run your function. I'm not 100% sure of what your project is doing so I don't know how to give you more advice, but even though I shouldn't be, I'm kind of surprised that IE is firing off a keydown event on a div.
We can also use something like this:
$('#tbl tbody').attr("tabindex", 1).focus();
$('#tbl tbody').keydown(function (event) {
...
});
You can check online from here
Source Code
<html>
<head>
<title>JS test</title>
<script type="text/javascript">
$(document).ready(function() {
$("#testdiv").keydown(function(event) {
alert("Pressed " + event.keyCode);
});
});
</script>
<style type="text/css">
#testdiv
{
width: 50px;
height: 50px;
background-color: red;
}
</style>
</head>
<body>
<div id="testdiv" tabindex="0"></div>
</body>
</html>
I couldn't get any of these answers to work in Firefox 5 using the latest CDN from jquery. I needed to know if one of the children of the div had key events so I resorted to this:
$(document).keypress(function(e){
if(!$(e.target).parents().is("#testdiv")) return;
/* do child-of-div specific code here */
}
If the target is the current div (and it has focus), i'd imagine you could do something like this:
$(document).keypress(function(e){
if(!$(e.target).is("#testdiv")) return;
/* do div specific code here */
}
It is because of the jQuery version. try http://code.jquery.com/jquery-latest.js as source
Basically:
Call yourElement.focus() after setting the 'onkeydown' event... Example:
div.onkeydown = (e) {
alert(e.key)
// or whatever
}
div.focus() // Add this
This should work:
$(document).on("keydown", "#mydiv" function(e) {
alert('Pressed '+ e.keyCode);
});
$('#mydiv').attr('tabindex', "0")
$('#mydiv').focus();
加载中,请稍侯......
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