Usage
JavaScript
nebula.focusOnElement(element)
Parameters
element
(Required) (Object) The element to focus on
Default: None
Parameter Notes
If the element desired to be focused on is not typically focusable, this function makes it temporarily focusable.
Examples
Scroll to an element and then set tab navigability to start there as well.
JavaScript
jQuery('html, body').animate({
scrollTop: Math.floor(jQuery(scrollElement).offset().top-offset+pOffset)
}, scrollSpeed, function(){
nebula.focusOnElement(scrollElement); //Start tab navigability here too
});
Source File
Located in /assets/js/modules/utilities.js on line 130.
No Hooks
This function does not have any filters or actions available. Request one?
JavaScript
nebula.focusOnElement = function(element = false){
if ( !element ){
nebula.help('nebula.focusOnElement() requires an element as a string or jQuery object.', '/functions/focusonelement/');
return;
}
//Debounce this because several things could call this simultaneously that cannot be reduced (like hashchange + scrollTo function call)
nebula.debounce(function(){
if ( typeof element === 'string' ){
element = jQuery.find(element); //Use find here to prevent arbitrary JS execution
} else if ( !element.jquery ){ //Check if it is already a jQuery object
element = jQuery(element);
}
//If the element is not focusable itself, add tabindex to make focusable and remove again
if ( !element.is(':focusable') ){ //Uses custom expression defined at the bottom of this file
element.attr('tabindex', -1).on('blur focusout', function(){
jQuery(this).removeAttr('tabindex');
});
}
element.trigger('focus'); //Focus on the element
}, 500, 'focusing on element', true);
};
Override
To override or disable this JavaScript function, simply redeclare it with the exact same function name.
JavaScript
nebula.focusOnElement = function(element){
//Write your own code here, leave it blank, or return false.
}