I am trying to call a function scheduleAdd when the enter button is hit, but I only want it to work if an input with the id 'addSchedule' is in focus. Here's what I have:
$('#addSchedule').focus(function(e) {
var evt = e || window.event;
if(evt.keyCode == 13) {scheduleAdd};
});
I know the code inside the .focus works, because I tried it on its own and it triggers the function scheduleAdd when the enter key is hit. How can I make this conditional on 'addSchedule' being in focus?
Also, more generally, I was wondering if there's a standard way to ascribe event handlers conditional on a second event, such as nesting .on() or something.
Thanks.
Demo on fiddle
HTML:
<form>
<input id="addSchedule" type="text" />
</form>
Javascript:
$('#addSchedule').keydown(function (event) {
if (event.which == 13) {
event.preventDefault(); // This will prevent the page refresh.
scheduleAdd();
}
function scheduleAdd() {
alert("Add the schedule");
}
});
Simply the keydown event, and decide to do something or nothing based on whether the current element has the specified id:
$(document).on("keydown", function() {
if (!$("#addSchedule").is(":focus")) return;
// do stuff
});
Alternatively you can also check for the identity of the focused element with document.activeElement.id === "addSchedule" if you don't mind that's not enough jQuery. ;-)
I didnt know how to properly name my question, but here goes.
In my html i have a "form" but not
<form></form>
.It is just a couple of selects, radio buttons and text inputs.
I enter, check and select values and according to these values, some computation is done. This "form" is computing on every keydown, blur, change. So when I change one value it will immediately recalculate the results with new value.
I would like to alert the user, when he didnt fill any of the necessary inputs. Here is how it works now (this is in a separate .js file)
function calculator() {
// Here is code that gathers the data from html
// and here are also some computations (many if-s)
// The code is too long to be putted here
}
$(function () {
$('select, input').on('keydown blur change', calculator);
});
I tried to put a if statement inside of my calculator function:
function calculator() {
// Here is code that gathers the data from html
// and here are also some computations (many if-s)
// The code is too long to be putted here
if (val1 == '' && sadzba == '' && viem == '' && ...) {
alert('You have to fill all necessary fields!')
}
}
This obviously caused, that the alert was popped every time I enter / choose new value, because at the beginning all variables are empty / with no value.
So how can I achieve, this situation: User fills in the "form" except of (for example)one value and only then will the alert pop up.
Than you.
I suggest to do the check on submit and return false if one of the fields is empty, preventing the form to be submitted.
$('form').on('submit', function () {
if (val1 == '' || sadzba == '' || viem == '') {
alert('You have to fill all necessary fields!');
return false;
} else { return true; }
});
Use a different event handler for the onblur event since that's when the cursor has left the input box. (It also prevents the event handler from firing all the time. That's a pretty expensive process and it can slow your page down)
$('select, input').on('blur', didTheyLeaveTheFieldEmpty);
Hope I understood you right, you can try this:
function calculator(event) {
if ( $(event.target).val().length == 0 ) {
alert('fill the field');
}
}
$('select, input').on('keyup', calculator);
even if you don't want a form with a submit buton you can create a button
and trigger your code on it's click
<input type="button" class="calculate">
$(function () {
$('.calculate').on('click', calculator);
});
I have this external jQuery code:
jQuery(document).one('keydown', 'g',function (evt){
if ($("#tb").html() == "0")
{
$("#tb").html("Testing the chicken.")
} else {$("#tb").html("Chickens fart too.")}
return false;});
There are no errors in console.
I know it's rather silly, but never mind the text in .html(). Anyways, whenever I go to the webpage it just replaces the default 0 in the page with nothing. Then, when I press any key nothing happens. Ultimately, what I want this script to do in the end is display the letter or number that the user types in the tb div.
P.S. I'm new to stackoverflow so please tell me if my formatting is wrong or if I broke a rule.
Okay, so I edited the code and here is what I have:
$('#tb').on("keydown", function(event) {
if ($("#tb").html() == "0")
{
$("#tb").html("Testing the chicken.")
} else {$("#tb").html("Chickens fart too.")}
});
It still doesn't work.
A div element does not have a keydown event. Only element that have focus property can have it.
So I think you are referring to a input inside the div..
HTML
<div id="tb">
<span class="output"></span>
<input type="text" />
</div>
JS
// Delegating the event on input to it's container
$('#tb').on("keydown", 'input', function (event) {
// $(this).val() - Gets the value of the input on keydown
if ($(this).val() === "") {
// Set the html for span inside div
$(".output").html("Testing the chicken.");
} else {
$(".output").html("Chickens fart too.");
}
});
Check Fiddle
// Bind event to the document which fires when document is focussed and
// a key is pressed
$(document).on('keydown', function(event) {
// Key code for g
if(event.keyCode === 71) {
// Bind the event to the input when g is pressed
$('#tb input').on('keyup', inputKeydown);
// unbind the event on document as no longet necessary
$(document).off('keydown');
}
return;
});
function inputKeydown() {
// $(this).val() - Gets the value of the input on keydown
if ($(this).val() === "") {
// Set the html for span inside div
$(".output").html("Testing the chicken.");
} else {
$(".output").html("Chickens fart too.");
}
}
Another Fiddle
I want a text field to always be focused. When they click out of the textfield, I want the focus to go back into the textfield.
How would I accomplish this with jQuery?
$('input').focus();
$('input').**unfocused?**( function($) { $('input').focus();} );
You're looking for the blur event:
$(':text').blur(function() { this.focus(); });
The following code is an alternative solution which depends on periodically checking the control's state.
var controlFocus=false;
$("#txtName").focus(function(){
$(this).addClass("focused");
if(!controlFocus) {
controlFocus = true;
setInterval(function(){
var o = $("#txtName");
if(!o.hasClass("focused")) o.focus();
}), 200);
}
}).blur(function(){$(this).removeClass("focused");});
After the textbox (named txtName) gets its first focus, every 0.2 second, the code controls whether the textbox has focus. If it doesn't, it's focused. But this can be a really annoying thing.
Bind to get the change event, and check if focus must be forced to this input if so, insert some data in the document. $(document).data(‘_force_focus’, e.target)
$('input.force').bind('change', function(e) {
if( need_force_focus() ) {
$(document).data('_force_focus', e.target);
} else {
$(document).removeData('_force_focus');
}
});
Now on the document bind to the focusin event, testing if document have the “_force_focus” data. If so set the focus to the value. It’s important prevent the focusin retrigger by testing against e.target
$(document).bind('focusin', function (e) {
var t = $.data(document, '_force_focus');
if( t && e.target !== t ) {
$(t).trigger('focus');
return false;
}
return true;
});
I have a jQuery UI dialog box with a form. I would like to simulate a click on one of the dialog's buttons so you don't have to use the mouse or tab over to it. In other words, I want it to act like a regular GUI dialog box where simulates hitting the "OK" button.
I assume this might be a simple option with the dialog, but I can't find it in the jQuery UI documentation. I could bind each form input with keyup() but didn't know if there was a simpler/cleaner way. Thanks.
I don't know if there's an option in the jQuery UI widget, but you could simply bind the keypress event to the div that contains your dialog...
$('#DialogTag').keypress(function(e) {
if (e.keyCode == $.ui.keyCode.ENTER) {
//Close dialog and/or submit here...
}
});
This'll run no matter what element has the focus in your dialog, which may or may not be a good thing depending on what you want.
If you want to make this the default functionality, you can add this piece of code:
// jqueryui defaults
$.extend($.ui.dialog.prototype.options, {
create: function() {
var $this = $(this);
// focus first button and bind enter to it
$this.parent().find('.ui-dialog-buttonpane button:first').focus();
$this.keypress(function(e) {
if( e.keyCode == $.ui.keyCode.ENTER ) {
$this.parent().find('.ui-dialog-buttonpane button:first').click();
return false;
}
});
}
});
Here's a more detailed view of what it would look like:
$( "#dialog-form" ).dialog({
buttons: { … },
open: function() {
$("#dialog-form").keypress(function(e) {
if (e.keyCode == $.ui.keyCode.ENTER) {
$(this).parent().find("button:eq(0)").trigger("click");
}
});
};
});
I have summed up the answers above & added important stuff
$(document).delegate('.ui-dialog', 'keyup', function(e) {
var target = e.target;
var tagName = target.tagName.toLowerCase();
tagName = (tagName === 'input' && target.type === 'button')
? 'button'
: tagName;
isClickableTag = tagName !== 'textarea' &&
tagName !== 'select' &&
tagName !== 'button';
if (e.which === $.ui.keyCode.ENTER && isClickableTag) {
$(this).find('.ui-dialog-buttonset button').eq(0).trigger('click');
return false;
}
});
Advantages:
Disallow enter key on non compatible elements like textarea , select , button or inputs with type button , imagine user clicking enter on textarea and get the form submitted instead of getting new line!
The binding is done once , avoid using the dialog 'open' callback to bind enter key to avoid binding the same function again and again each time the dialog is 'open'ed
Avoid changing existing code as some answers above suggest
Use 'delegate' instead of the deprecated 'live' & avoid using the new 'on' method to allow working with older versions of jquery
Because we use delegate , that mean the code above can be written even before initializing dialog. you can also put it in head tag even without $(document).ready
Also delegate will bind only one handler to document and will not bind handler to each dialog as in some code above , for more efficiency
Works even with dynamically generated dialogs like $('<div><input type="text"/></div>').dialog({buttons: .});
Worked with ie 7/8/9!
Avoid using the slow selector :first
Avoid using hacks like in answers here to make a hidden submit button
Disadvantages:
Run the first button as the default one , you can choose another button with eq() or call a function inside the if statement
All of dialogs will have same behavior you can filter it by making your selector more specific ie '#dialog' instead of '.ui-dialog'
I know the question is old but I have had the same need, so, I shared the solution I've used.
$('#dialogBox').dialog('open');
$('.ui-dialog-buttonpane > button:last').focus();
It works beautifully with the latest version of JQuery UI (1.8.1).
You may also use :first instead of :last depending on which button you want to set as the default.
This solution, compared to the selected one above, has the advantage of showing which button is the default one for the user. The user can also TAB between buttons and pressing ENTER will click the button currently under focus.
Cheers.
Ben Clayton's is the neatest and shortest and it can be placed at the top of your index page before any jquery dialogs have been initialized. However, i'd like to point out that ".live" has been deprecated. The preferred action is now ".on". If you want ".on" to function like ".live", you'll have to use delegated events to attach the event handler. Also, a few other things...
I prefer to use the ui.keycode.ENTER method to test for the enter
key since you don't have to remember the actual key code.
Using "$('.ui-dialog-buttonpane button:first', $(this))" for the
click selector makes the whole method generic.
You want to add "return false;" to prevent default and stop
propagation.
In this case...
$('body').on('keypress', '.ui-dialog', function(event) {
if (event.keyCode === $.ui.keyCode.ENTER) {
$('.ui-dialog-buttonpane button:first', $(this)).click();
return false;
}
});
A crude but effective way to make this work more generically:
$.fn.dlg = function(options) {
return this.each(function() {
$(this).dialog(options);
$(this).keyup(function(e){
if (e.keyCode == 13) {
$('.ui-dialog').find('button:first').trigger('click');
}
});
});
}
Then when you create a new dialog you can do this:
$('#a-dialog').mydlg({...options...})
And use it like a normal jquery dialog thereafter:
$('#a-dialog').dialog('close')
There are ways to improve that to make it work in more special cases. With the above code it will automatically pick the first button in the dialog as the button to trigger when enter is hit. Also it assumes that there is only one active dialog at any given time which may not be the case. But you get the idea.
Note: As mentioned above, the button that is pressed on enter is dependent on your setup. So, in some cases you would want to use the :first selector in .find method and in others you may want to use the :last selector.
Rather than listening for key codes like in this answer (which I couldn't get to work) you can bind to the submit event of the form within the dialog and then do this:
$("#my_form").parents('.ui-dialog').first().find('.ui-button').first().click();
So, the whole thing would look like this
$("#my_form").dialog({
open: function(){
//Clear out any old bindings
$("#my_form").unbind('submit');
$("#my_form").submit(function(){
//simulate click on create button
$("#my_form").parents('.ui-dialog').first().find('.ui-button').first().click();
return false;
});
},
buttons: {
'Create': function() {
//Do something
},
'Cancel': function() {
$(this).dialog('close');
}
}
});
Note that different browsers handle the enter key differently, and some do not always do a submit on enter.
I don't know about simpler, but ordinarily you would track which button has the current focus. If the focus is changed to a different control, then the "button focus" would remain on the button that had focus last. Ordinarily, the "button focus" would start on your default button. Tabbing to a different button would change the "button focus". You'd have to decide if navigating to a different form element would reset the "button focus" to the default button again. You'll also probably need some visual indicator other than the browser default to indicate the focused button as it loses the real focus in the window.
Once you have the button focus logic down and implemented, then I would probably add a key handler to the dialog itself and have it invoke the action associated with the currently "focused" button.
EDIT: I'm making the assumption that you want to be able hit enter anytime you are filling out form elements and have the "current" button action take precedence. If you only want this behavior when the button is actually focused, my answer is too complicated.
I found this solution, it work's on IE8, Chrome 23.0 and Firefox 16.0
It's based on Robert Schmidt comment.
$("#id_dialog").dialog({
buttons: [{
text: "Accept",
click: function() {
// My function
},
id: 'dialog_accept_button'
}]
}).keyup(function(e) {
if (e.keyCode == $.ui.keyCode.ENTER)
$('#dialog_accept_button').click();
});
I hope it help anyone.
Sometimes we forget the fundamental of what the browser already supports:
<input type="submit" style="visibility:hidden" />
This will cause the ENTER key to submit the form.
I did such way... ;) Hope it will helpful for somebody..
$(window).keypress(function(e) {
if ((e.which && e.which == 13) || (e.keyCode && e.keyCode == 13)) {
$(".ui-dialog:visible").find('.ui-dialog-buttonpane').find('button:first').click();
return false;
}
});
This should work to trigger the click of the button's click handler. this example assumes you have already set up the form in the dialog to use the jquery.validate plugin. but could be easily adapted.
open: function(e,ui) {
$(this).keyup(function(e) {
if (e.keyCode == 13) {
$('.ui-dialog-buttonpane button:last').trigger('click');
}
});
},
buttons: {
"Submit Form" : function() {
var isValid = $('#yourFormsID').valid();
// if valid do ajax call
if(isValid){
//do your ajax call here. with serialize form or something...
}
}
I realise there are a lot of answers already, but I reckon naturally that my solution is the neatest, and possibly the shortest. It has the advantage that it works on any dialogs created any time in the future.
$(".ui-dialog").live("keyup", function(e) {
if (e.keyCode === 13) {
$('.ok-button', $(this) ).first().click();
}
});
Here is what I did:
myForm.dialog({
"ok": function(){
...blah...
}
Cancel: function(){
...blah...
}
}).keyup(function(e){
if( e.keyCode == 13 ){
$(this).parent().find('button:nth-child(1)').trigger("click");
}
});
In this case, myForm is a jQuery object containing the form's html (note, there aren't any "form" tags in there... if you put those in the whole screen will refresh when you press "enter").
Whenever the user presses "enter" from within the form it will be the equivalent of clicking the "ok" button.
This also avoids the issue of having the form open with the "ok" button already highlighted. While that would be good for forms with no fields, if you need the user to fill in stuff, then you probably want the first field to be highlighted.
done and done
$('#login input').keyup(function(e) {
if (e.keyCode == 13) {
$('#login form').submit();
}
}
if you know the button element selector :
$('#dialogBox').dialog('open');
$('#okButton').focus();
Should do the trick for you. This will focus the ok button, and enter will 'click' it, as you would expect. This is the same technique used in native UI dialogs.
$("#LogOn").dialog({
modal: true,
autoOpen: false,
title: 'Please Log On',
width: 370,
height: 260,
buttons: { "Log On": function () { alert('Hello world'); } },
open: function() { $(this).parents('.ui-dialog-buttonpane button:eq(0)').focus();}
});
I found a quite simple solution for this problem:
var d = $('<div title="My dialog form"><input /></div>').dialog(
buttons: [{
text: "Ok",
click: function(){
// do something
alert('it works');
},
className: 'dialog_default_button'
}]
});
$(d).find('input').keypress(function(e){
if ((e.which && e.which == 13) || (e.keyCode && e.keyCode == 13)) {
e.preventDefault();
$('.dialog_default_button').click();
}
});
$('#DialogID').dialog("option", "buttons")["TheButton"].apply()
This worked great for me..
None of these solutions seemed to work for me in IE9. I ended up with this..
$('#my-dialog').dialog({
...
open: function () {
$(this).parent()
.find("button:eq(0)")
.focus()
.keyup(function (e) {
if (e.keyCode == $.ui.keyCode.ENTER) {
$(this).trigger("click");
};
});
}
});
Below body is used because dialog DIV added on body,so body now listen the keyboard event. It tested on IE8,9,10, Mojila, Chrome.
open: function() {
$('body').keypress(function (e) {
if (e.keyCode == 13) {
$(this).parent().find(".ui-dialog-buttonpane button:eq(0)").trigger("click");
return false;
}
});
}
Because I don't have enough reputation to post comments.
$(document).delegate('.ui-dialog', 'keyup', function(e) {
var tagName = e.target.tagName.toLowerCase();
tagName = (tagName === 'input' && e.target.type === 'button') ? 'button' : tagName;
if (e.which === $.ui.keyCode.ENTER && tagName !== 'textarea' && tagName !== 'select' && tagName !== 'button') {
$(this).find('.ui-dialog-buttonset button').eq(0).trigger('click');
return false;
} else if (e.which === $.ui.keyCode.ESCAPE) {
$(this).close();
}
});
Modified answer by Basemm #35 too add in Escape to close the dialog.
It works fine Thank You!!!
open: function () {
debugger;
$("#dialogDiv").keypress(function (e) {
if (e.keyCode == 13) {
$(this).parent().find("#btnLoginSubmit").trigger("click");
}
});
},
Give your buttons classes and select them the usual way:
$('#DialogTag').dialog({
closeOnEscape: true,
buttons: [
{
text: 'Cancel',
class: 'myCancelButton',
click: function() {
// Close dialog fct
}
},
{
text: 'Ok',
class: 'myOKButton',
click: function() {
// OK fct
}
}
],
open: function() {
$(document).keyup(function(event) {
if (event.keyCode === 13) {
$('.myOKButton').click();
}
});
}
});