jQuery(function($){
$(document).ready(function(){
//when a perk button is clicked:
// 1. get the ID number,
// 2. get the minimum cost of the perk with that ID number
// 3. plug that cost into the amount text field
// 4. call disable perks function
$('.wpcf-perk-button').click(function(){
if(!$(this).hasClass('wpcf-perk-soldout')){
perk_id = $(this).attr('id').replace(/[^0-9]/g, '');
min_amount = $('input[type=radio][name="wpcf-contribute-perk"][value='+perk_id+']').prop('checked', true).data('min-contribution');
$('#wpcf-contribute-amount').val(min_amount);
disable_perks_on_price();
}
});
//on key down, only allow numeric values
$('#wpcf-contribute-amount').keydown(function(e){
ret = false;
if(e.keyCode >= 48 && e.keyCode <= 57) // 0 - 9
ret = true;
else if(e.keyCode >= 96 && e.keyCode <= 105) // 0 - 9 (numpad)
ret = true;
else if(e.keyCode == 110 || e.keyCode == 190) // decimal/period
ret = true;
else if(e.keyCode == 8 || e.keyCode == 46) // backspace / delete
ret = true;
return ret;
//on key up call the disable perks function
}).keyup(function(){disable_perks_on_price()});
$('#wpcf-contribute-anonymous').click(function(){
if($(this).is(':checked')){
$('#wpcf-contribute-name, #wpcf-contribute-email, .wpcf-not-required-anonymous').prop('disabled', true);
}else{
$('#wpcf-contribute-name, #wpcf-contribute-email, .wpcf-not-required-anonymous').prop('disabled', false);
}
});
//disable all perks who "min-contribution" data attribute is below the value in the amount field
//if a perk that was previously selected is below the value in the amount field, it will be un-selected
function disable_perks_on_price(){
input_amount = $('#wpcf-contribute-amount').val();
if(isNaN(input_amount))
input_amount = 0;
if(!isNaN(input_amount)){
$('input[type=radio][name="wpcf-contribute-perk"]').each(function(){
if(parseFloat($(this).data('min-contribution')) > parseFloat(input_amount) || input_amount==0){
$(this).prop('checked', false).prop('disabled', true);
}else{
$(this).prop('disabled', false);
}
});
}
}
});
});
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