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add character count for inputs and textareas #2162

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add character count for inputs and textareas #2162

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6e3af3e
add character count for inputs and textareas
biskwikman Jul 10, 2022
0275404
reformatted code and added validation system
biskwikman Aug 11, 2022
054438b
combine code into single block
biskwikman Aug 13, 2022
9a10111
simplify constraint
biskwikman Aug 13, 2022
b35349d
add error message to html
biskwikman Aug 16, 2022
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25 changes: 25 additions & 0 deletions js/10-base.js
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Original file line number Diff line number Diff line change
Expand Up @@ -120,6 +120,31 @@ Liberapay.init = function() {
$('button[data-action="reload"]').on('click', function() {
location.reload();
});

// Create dynamic hint based on remaining length
$('input[maxlength], textarea[maxlength]').on('focus input', function() {
if (!maxLength) {
var maxLength = $(this).attr('maxlength');
$(this).data('maxLength', maxLength);
$(this).removeAttr('maxLength');
}

var maxLength = $(this).data('maxLength');
var remainingLength = maxLength - $(this).val().length;
var helpBlock = $(this).siblings('.help-block');
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if ($(this).val().length) {
helpBlock.text(function (index, value) {
return value.slice(value.indexOf('.') + 1);
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});
helpBlock.prepend(remainingLength + ' characters remaing.');
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} else {
helpBlock.text(function (index, value) {
return value.slice(value.indexOf('.') + 1);
});
helpBlock.prepend('Maximum length is ' + maxLength + '.');
}
});
};

$(function(){ Liberapay.init(); });
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