Preventing jQuery click event - javascript

I have some links which I wish to prevent the user from unintentionally following if they have pending changes, and the following works.
$('#goToPage').next('ul.dropdown-menu').find('a').click(function(e){
if (tinymce.activeEditor.isDirty() && !confirm("Are you sure")) {
e.preventDefault();
}
});
Similarly, I have dialog which I wish to do the same, and while the confirm prompt occurs before opening the dialog, however, e.preventDefault(); does not prevent the dialog from opening.
How can an click() callback be disabled? Note that the #dialog-add dialog is used on other pages and I don't wish to modify it.
$('#add').click(function(e){
if (tinymce.activeEditor.isDirty() && !confirm("Are you sure")) {
console.log('quit')
e.preventDefault();
e.stopPropagation();
return false;
}
});
$("#add").click(function() {$("#dialog-add").dialog("open");});
$("#dialog-add").dialog();

Related

Resuming default behaviour after preventDefault()

I've written a small jQuery plugin which is designed to ask the question, "Are you sure?" when clicking on a link or submitting a form.
It's used like this:
Link
Or like this:
<form action="link.php" method="post">
<button class="confirm">Submit</button>
</form>
What I am doing is using preventDefault() to prevent the default behavior when the anchor or button is clicked. I then display a confirm dialogue where the user has to click either OK or Cancel.
If the user clicks Cancel then nothing happens (as expected).
However, if the user clicks OK I am firing the click event again, and using a flag that was set first time around to not prevent the default behaviour second time around (I'm instead returning true). Except that it's not working. Clicking either OK or Cancel in the confirm dialogue doesn't do anything.
The plugin is below:
(function($) {
$.fn.fw_confirm = function(options) {
// Flag to check for the first click event
var paused = false;
return this.on("click", function(e) {
// The anchor or the button that was clicked
var button = $(this);
// If this is the second click event, the user must have confirmed so return true
if (paused == true) {
// Reset the flag
paused = false;
// This isn't working, or at least it's not submitting the form or proceeding to the URL of the hyperlink when I would expect it to
return true;
}
// First time around prevent the default behavior
e.preventDefault();
e.stopImmediatePropagation();
// Set the flag to true, ready for the second click event
paused = true;
if (confirm("Are you sure?")) {
// The user is certain, so trigger the click event again
return button.trigger("click");
} else {
// The user cancelled, reset the flag
paused = false;
return;
}
});
}
})(jQuery);

Prevent double submission with prevent window event issue

I'm using the following function to prevent double submissions:
$("#form").submit(function () {
var form = $(this);
form.find("input[type=submit]").attr("disabled", "disabled")
form.find("input[type=submit]").attr("value", "Processing");
});
It works fine, but then I have the following code which triggers an alert to avoid accidentally leaving the page:
function goodbye(e) {
if(!e) e = window.event;
//e.cancelBubble is supported by IE - this will kill the bubbling process.
e.cancelBubble = true;
e.returnValue = '¿DO YOU REALLY WANT TO LEAVE THIS PAGE?'; //This is displayed on the dialog
//e.stopPropagation works in Firefox.
if (e.stopPropagation) {
e.stopPropagation();
e.preventDefault();
}
}
window.onbeforeunload=goodbye;
The problem is if the user clicks submit and the realizes he didnt want to leave the page and clicks on stay on this page instead, the submit button is still disabled.
How could I re-enable it upon clicking stay on this page?
Thanks!
The button problem
You want to disable and enable the submit button so you know you going to touch the same kind of function and object twice, it is better to make advantage out of this in a function
function disableSubmit(form, enabled){
var submit = form.find("input[type=submit]"),
dataVar = enabled !== true ? "processing-message" : "send-message",
message = submit.data(dataVar);
submit.prop('disabled', (enabled !== true) );
submit.val(message);
}
I could make it even more generic for using it on each form. But the message in the button will display whatever you put in the data-attribute.
Cancel Submit
There is a problem with cancellation of an onbeforeunload event; there is no callback for it. The solution I came with is using a timeout. Since you don't know if the person canceled or not, I think 2 seconds is enough for the page to submit.
You have to have 2 seconds patient to get the submit button enabled again. But you can adjust it all you want of course
if (e.stopPropagation) {
setTimeout(function () {
disableSubmit(formObject, true);
}, 2000);
e.stopPropagation();
e.preventDefault();
}
The JSFiddle example

Jquery ui dialog not closing with `Escape` keypress

When a user opens dialog, there are a bunch of ajax requests that have to be processed and therefore i have a second dialog that just displays loading information and closes once all the requests have been processed.
I am not able to close the user opened dialog with Escape key once it has opened. I have to click on the the dialog itself before I can use escape.
I have tried the following to assign the user opened dialog the focus after the loading dialog closes but to no avail, I still have to click on the dialog before it can close with the escape key.
$(document).ajaxStart(function () {
// IF loading dialog is not allready being shown show it.
if ($("#LoadingData").dialog('isOpen') === false) {
$("#LoadingData").dialog('open');
}
});
$(document).ajaxStop(function () {
//Close the loading dialog once the requests have finished
$("#LoadingData").dialog('close');
//Find the user opened dialog
$('.cmdialog').each(function () {
if ($(this).dialog('isOpen')) {
$(this).trigger('click');//set focus to dialog
// have also replaced .trigger('click') with .focus() but to no avail
}
}).on('click', function() {
//if click is triggerd set the focus of the dialog.
if ($(this).prop('id') != 'LoadingData') {
$(this).focus();
}
});
});
I have also tried setting the focus to the first element within the dialog with $('#DialogName:first-child').focus() and $('#DialogName:first-child').trigger('click') but this is also not working.
Any ideas as to why the focus is not set? Or am I misunderstanding/incorrectly using .focus() and .trigger('event')?
Thanks :)
Try the below code for close the dialog when Escap key is pressed:
$(document).keyup(function(e) {
if (e.keyCode == 27) { $("#LoadingData").dialog('close'); } // esc
});
I had the same issue, and found pretty elegant solution, in case you want to close dialog before actually clicking inside it:
$("#LoadingData").dialog({
...,
focus: function () {
$('#LoadingData').closest('.ui-dialog').focus();
}
});
So, we just need to set focus to parent .ui-dialog container, and in that case Esc will work for all cases. Disadvantage of $(document).keyup solution, if you have nested dialogs, Esc button will close your most top dialog and bottom one too.
the focus event is sent to an element when it gains focus. This event is implicitly applicable to a limited set of elements, such as form elements (, , etc.) and links. docs here
You can try moveToTop method of the dialog, maybe it will help
And in your code, I think, you should bind "click" event before triggering it.
The following code should work even for multiple modals open:
$(document).on('keydown','.modal-dialog',function(event){
if (event.keyCode == 27) {
$(this).closest('.modal-dialog').find('[data-dismiss="modal"]').click();
}
});

Close colorbox popup with a button and trigger the confirm box?

I have a confirm box on my colorbox("are you sure you want to leave?").
This triggers when i close the popup. This works when i click on the "cboxClose" div on the popup.
I am trying to show this confirm box on a button click. But the popup just closes right away without showing the confirm box.
My question is how do i trigger the the confirm box when i click on a cancel button. i tried several ways
//This just closes the pop up without showing the confirm box
$('#btnCancel').click(function () {
parent.$.colorbox.close(); });
//doesn't work
$('#btnCancel').click(function () {
$('#cboxClose').click()
});
COLORBOX
onComplete: function () {
$("#cboxClose").click(function (e) {
// stop any other script from firing
e.stopPropagation();
if (confirm('are you sure you want to leave?')) {
$.colorbox.close();
// ensure that the binding is removed when closed
$("#cboxClose").unbind();
}
});
} // close oncomplete
The issue here is that colorbox registers a click handler on the cboxClose element. As a result, neither stopping bubbling nor preventing the click (by returning false in a click handler) will have any effect because the colorbox handler is already registered. The only way of stopping that handler from being run is to unbind it. However, to do that you need a reference to the handler, which you won't get without modifying the colorbox code.
In any case, that's what's going on and why the code you have above doesn't work. Another option for you would be to override the colorbox close function (which is the public colorbox method that is called by colorbox's close button handler). All you need is this:
$.colorbox._close = $.colorbox.close;
$.colorbox.close = function() {
if(confirm("Close?")) {
$.colorbox._close();
}
}
The down side (which may not be an issue in your situation) is that this will affect all colorboxes on the page.
I solved this issue by making this method and binding it to the cancel button
var originalClose = $.colorbox.close;
$.colorbox.close = function (e) {
var response;
var formChanged = localStorage.getItem("isFormChanged");
var saveClicked = localStorage.getItem("saveClicked");
if (formChanged == "true" && saveClicked == "false") {
response = confirm('Do you want to close this window? All your changes will not be saved');
if (!response) {
return
}
}
originalClose();
};
<input type="button" value="Cancel" id="btncancel" onclick="parent.$.colorbox.close()"/>

control page to move to top in case of confirm box

The following is my code snippet:
$(document).ready(function()
{
$('table#example td a.delete').click(function()
{
if (confirm("Are you sure you want to delete this row?"))
{
alert("You Press OK");
}
});
});
My grid-view is on the bottom of the page. Either I press Ok or Cancel Button, page moves to TOP.
I want to remain the same position. How to control this.
It actually doesn't have anything to do with the confirm; it's the fact you're clicking a link (I'm guessing the link has either href="" or href="#" in it). The browser is following the link, which is the default action for the click event of links.
You need to prevent the default action, which you can do by returning false from your function, or by accepting the event argument to your click function and calling event.preventDefault().
Returning false (which both prevents the default action and stops the click bubbling to ancestor elements):
$(document).ready(function()
{
$('table#example td a.delete').click(function()
{
if (confirm("Are you sure you want to delete this row?"))
{
alert("You Press OK");
}
return false;
});
});
Using preventDefault (which only prevents the default, and doesn't stop bubbling; ancestor elements will also see the click):
$(document).ready(function()
{
// Note argument -----------------------------v
$('table#example td a.delete').click(function(event)
{
event.preventDefault();
if (confirm("Are you sure you want to delete this row?"))
{
alert("You Press OK");
}
});
});

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