META-INF.resources.butterfaces-dist-js.butterfaces-maxlength.jquery.js Maven / Gradle / Ivy

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///
///
(function ($) {
    $.fn.butterMaxLength = function (maxLength, maxLengthText) {
        var ERROR_STYLE_CLASS = "has-error";
        return this.each(function () {
            //console.log("initializing max length");
            var $root = $(this);
            var $valueElement = $root.find("textarea");
            var $maxLength = $root.find(".butter-component-maxlength-counter");
            if ($maxLength.length > 0) {
                //console.log("found max length element");
                var hasInitialValidationError = $root.hasClass(ERROR_STYLE_CLASS);
                var _checkValue = function () {
                    var value = $valueElement.val();
                    // console.log("checking value");
                    // console.log(value);
                    if (typeof value !== 'undefined') {
                        var freeLetterCount = maxLength - value.length;
                        var formatted = ButterFaces.String.format(maxLengthText, freeLetterCount, maxLength);
                        $maxLength.text(formatted);
                        if (!hasInitialValidationError) {
                            if (freeLetterCount < 0) {
                                $root.addClass(ERROR_STYLE_CLASS);
                            }
                            else {
                                $root.removeClass(ERROR_STYLE_CLASS);
                            }
                        }
                    }
                };
                $valueElement.on("focus blur keyup cut paste", _checkValue);
                // initial check
                _checkValue();
            }
        });
    };
}(jQuery));

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