Develop Reference

Intercepting Paste action on a div only works after right clicking

I am working on a project in which I need to intercept a paste action that is being performed on a div (must be a div, can't be a text box). Right now I am binding the event after the div has focus (you've clicked on the div):
$('#result').unbind().click(function () {
$(this).focus();
$('#result').unbind().on('paste', function () {
console.log('paste behaviour detected!');
});
}); //NOTE: I have also tried. result.bind, result.unbind.bind, onpast="function()"
//(in the HTML), and a couple of other things.
I have also tried changing around the flow of the class (no change).
One more thing. I am using chrome/opera to develop. When I test this on firefox it works just fine. Is there anything I can try to fix this or did I stumble upon a bug?
NOTE: I am leaving out info about the project for simplicity, but if you need more context I can provide it.
Edit: I am pasting in to a div so there is no rightclick>paste button. This is solely with ctrl+v.

You can detect the combination of ctrl/cmd + v keys as well:
$(document).ready(function() {
var ctrlDown = false,
ctrlKey = 17,
cmdKey = 91,
vKey = 86;
$(document).keydown(function(e) {
if (e.keyCode == ctrlKey || e.keyCode == cmdKey) {
ctrlDown = true;
}
}).keyup(function(e) {
if (e.keyCode == ctrlKey || e.keyCode == cmdKey) {
ctrlDown = false;
}
});
$(document).keydown(function(e) {
if (ctrlDown && e.keyCode == vKey) {
alert('PASTE DETECTED');
}
});
});
});
https://jsfiddle.net/ufskbo0a/1/
You can use the clipboardData api in most browsers to get the data:
window.clipboardData.getData('Text')
http://caniuse.com/#search=clipboardData

How to prevent default Shortcut alt+b by Firefox and IE via JS?

I need to implement a shortcut alt+b, calling a function. My problem is, that everytime i press this shortcut, a Firefox and an IE open a Menu-Bar "Edit". Is there any solution to prevent this default behavior? Or maybe it is possible to close this menu-bar after calling a function?
What i have tried but without success
$(document).keydown(function(e) {
if (e.keyCode == 18 || e.which==18)
{
e.preventDefault();
}
});

Try this, it will only run the console.log() if you hit Alt+B. Replace the console with anything you want.
$(window).keydown(function(event) {
if(event.altKey && event.keyCode == 66) {
event.preventDefault();
console.log("Hey! alt+B event captured!");
}
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

This seems to work for me:
$(document).keydown(function(e) {
// check for alt+b
if (e.keyCode == 66 && e.altKey === true) {
e.preventDefault();
}
});
You need to check the press of b, not alt.

ie11 Detecting Enter Key pressed

I have the following piece of code in an asp mvc page
$('#regForm').submit(function (event) {
if (event.keyCode == '13') {
event.preventDefault();
}
});
The aim is to prevent the form from submitting when enter is pressed.
We have noticed that in ie 11, this is not working, and on stepping into the code via debug, event.keycode is null. I have been doing some researching on this, and it seems to be an issue because we have the IE-8 Compatibility Meta Tag present on the page, which means that event.keyCode (and event.which) returns undefined for the event, and so my form is always submitted.
So how do I rewrite this to get round the issue?

You need to use the keypress event, not form submit
$('#regForm').keypress(function (event) {
if (event.keyCode == 13) {
event.preventDefault();
}
});

Try something like this, use window.event:
$('#regForm').submit(function (e) {
var keyCode = (window.event) ? e.which : e.keyCode;
if (keyCode == '13') {
e.preventDefault();
}
});

Use type="button" attribute with <button> element
So that IE thinks the button as a simple button instead of a submit button.
So form will not submit
You can also get more details from below url
http://tjvantoll.com/2013/01/01/enter-should-submit-forms-stop-messing-with-that/

$('#regForm').keypress((event) => {
if (event.key === "Enter") {
event.preventDefault();
}
});

Default button on enter and popup list

I'm trying to implement a form with multiple buttons on it. When I press enter I want to have my default button submitted. This code from http://greatwebguy.com/programming/dom/default-html-button-submit-on-enter-with-jquery/ generally works:
$(function() {
$("form input").keypress(function (e) {
if ((e.which && e.which == 13) || (e.keyCode && e.keyCode == 13)) {
$('button[type=submit].default').click();
return false;
} else {
return true;
}
});
});
but...
when I type in input field I have an autocomplete popup so when I press enter in this popup I expect to put this value to input field, not submit all form. Can I check somehow if this enter comes from popup? Or I should try to do this different way?
EDIT:
I think I didn't say it clear. This popup is not any part of jquery. It's standard popup that shows previously typed data into input. So it hasn't got any class nor id. Stop propagation doesn't work either. None of solutions below resolve this problem

You could use :visible to see if the dropdown div for the autocomplete is open, and then prevent the enter key action of your code completing. Something like this:
$("form input").keypress(function(e) {
var key = e.which || e.keyCode;
if (key == 13 && !$(".autocomplete").is(":visible")) {
e.preventDefault();
$('form').submit();
}
});
You could also use event.stopPropagation() on the enter key press in the autocomplete function, however you'll probably have to amend the source manually which isn't ideal.

Before return false;
write
e.preventDefault();
or/and
e.stopPropagation();

$("form input").keypress(function (e) {
if (e.target.id !== "autoCompliteId" && ((e.which && e.which == 13) || (e.keyCode && e.keyCode == 13))) {
$('button[type=submit].default').click();
return false;
} else {
return true;
}
});

I modified my code and it works now.
I have an enum called Operation in my command and I set different value of the field before every submit button eg:
<input type="submit" value="do sth" onclick="setOperationAndSubmit('DO_STH')"/>
<input type="submit" value="next" onclick="setOperationAndSubmit('DEFAULT')"/>
function setOperationAndSubmit(operation) {
if (document.myForm.elements['operation'].value === '') {
document.myForm.elements['operation'].value = operation;
}
document.myForm.submit();
}
Then I have my action that listens to keypress and it set appropriate operation on every enter key:
$(function() {
$("form input").keypress(function(e) {
if ((e.which && e.which == 13) || (e.keyCode && e.keyCode == 13)) {
document.myForm.elements['operation'].value = 'DEFAULT';
}
});
});
so default action is executed when I press enter

why is my button losing focus?

This is what I want to happen.. When a user hits 'enter' a 'SearchForItems()' should trigger. What is happening is another control, with 'other button', on the page gets focus returned to it anytime any other element is tabbed out of or after onkeyup.
I am having to force focus on the 'Search button' on page load, but after that any time enter is pressed the 'other button' is triggered. The 'other button' does not have a tab index assigned and is the pages default button.
I'm not sure if I've done a good job explaining this. Basically I want to know why focus is being shifted and how I can force the 'Search button' to trigger anytime enter is pressed.
this is one entry on my page where I'm trying to force the 'Search button' to trigger:
<td><input type="text" onkeydown="CheckForEnterKey(event)" id="AcceptedDate1" maxlength="7" style="width:121px;" value="<%=DateTime.Now.AddMonths(-3).ToString("MM/yyyy")%>"/> </td>
this is part of my jquery file where i'm also
$('#AcceptedDate1').keypress(function(e) { if (e.keyCode == 13 || e.which == 13) $('#SearchAcceptedLotsButton').click(); });
CheckForEnterKey Function
function CheckForEnterKey(e)
{
var keycode;
if(e.which)
{
keycode = e.which;
}
else
{
keycode = e.keyCode;
}
if(keycode == 13)
{
$('#SearchAcceptedLotsButton').click();//tried SearchForItems() also
}
}
Edit:
I just added this to my page and it appears to work, I added this to the main div thats holding everything together. What I need to do now is figure out where the enter was pressed so the enter is canceled everytime it is pressed within the main portion of my page. Any ideas, there are a lot of elements on my page?
function checkKey(e)
{
if(e.keyCode == 13 || e.which == 13)
{
e.returnValue = false;
e.cancel = true;
}
}

I am not sure why you are having problems. But I can offer you my onKeyDown code for pressing enter:
if (event.which || event.keyCode){if ((event.which == 13) || (event.keyCode == 13)) { #DO JS HERE # }}
So I use it like this:
<input type="text" onKeyDown="if (event.which || event.keyCode){if ((event.which == 13) || (event.keyCode == 13)) { alert('You pressed enter!'); }}">

In the above code whenever enter is pressed the id="SearchAcceptedLotsButton" can be triggered click as follows :
if(keycode == 13)
{
$('#SearchAcceptedLotsButton').trigger('click');
}

this is how I resolved the issue:
I added this function..
function checkKey(e)
{
if(e.keyCode == 13 || e.which == 13)
{
e.returnValue = false;
e.cancel = true;
SearchAcceptedLots();
}
}
At the top most div containing everything on the page I added this:
<div id="ItemPanel" onkeydown="checkKey(event)">
this catches every enter that is pressed within the form, canceling the default buttons behavior and calling the desired function.