I have a web page which I have prevented the default action on all submit buttons, however I would like to re-enable default submit action on a button how can I do this?
I am currently preventing the default action using the following:
$("form").bind("submit", function(e){
e.preventDefault();
});
I have successfully done this using the following:
$(document).ready(function(){
$("form:not('#press')").bind("submit", function(e){
e.preventDefault();
});
But can I do this dynamically when the button is clicked?
This question is related to
javascript
jquery
You would have to unbind the event and either rebind to a separate event that does not preventDefault or just call the default event yourself later in the method after unbinding. There is no magical event.cancelled=false;
As requested
$('form').submit( function(ev){
ev.preventDefault();
//later you decide you want to submit
$(this).unbind('submit').submit()
});
function(e){ e.preventDefault();
and its opposite
function(e){ return true; }
cheers!
I had a similar problem recently. I had a form and PHP function that to be run once the form is submitted. However, I needed to run a javascript first.
// This variable is used in order to determine if we already did our js fun
var window.alreadyClicked = "NO"
$("form:not('#press')").bind("submit", function(e){
// Check if we already run js part
if(window.alreadyClicked == "NO"){
// Prevent page refresh
e.preventDefault();
// Change variable value so next time we submit the form the js wont run
window.alreadyClicked = "YES"
// Here is your actual js you need to run before doing the php part
xxxxxxxxxx
// Submit the form again but since we changed the value of our variable js wont be run and page can reload (and php can do whatever you told it to)
$("form:not('#press')").submit()
}
});
You can re-activate the actions by adding
this.delegateEvents(); // Re-activates the events for all the buttons
If you add it to the render function of a backbone js view, then you can use event.preventDefault() as required.
Either you do what redsquare proposes with this code:
function preventDefault(e) {
e.preventDefault();
}
$("form").bind("submit", preventDefault);
// later, now switching back
$("form#foo").unbind("submit", preventDefault);
Or you assign a form attribute whenever submission is allowed. Something like this:
function preventDefault(e) {
if (event.currentTarget.allowDefault) {
return;
}
e.preventDefault();
}
$("form").bind("submit", preventDefault);
// later, now allowing submissions on the form
$("form#foo").get(0).allowDefault = true;
With async actions (timers, ajax) you can override the property isDefaultPrevented
like this:
$('a').click(function(evt){
e.preventDefault();
// in async handler (ajax/timer) do these actions:
setTimeout(function(){
// override prevented flag to prevent jquery from discarding event
evt.isDefaultPrevented = function(){ return false; }
// retrigger with the exactly same event data
$(this).trigger(evt);
}, 1000);
}
This is most complete way of retriggering the event with the exactly same data.
$('form').submit( function(e){
e.preventDefault();
//later you decide you want to submit
$(this).trigger('submit'); or $(this).trigger('anyEvent');
Source: Stackoverflow.com