/*
|
* jQuery Input Limiter plugin 1.3.1
|
* http://rustyjeans.com/jquery-plugins/input-limiter/
|
*
|
* Copyright (c) 2009 Russel Fones <russel@rustyjeans.com>
|
*
|
* Permission is hereby granted, free of charge, to any person
|
* obtaining a copy of this software and associated documentation
|
* files (the "Software"), to deal in the Software without
|
* restriction, including without limitation the rights to use,
|
* copy, modify, merge, publish, distribute, sublicense, and/or sell
|
* copies of the Software, and to permit persons to whom the
|
* Software is furnished to do so, subject to the following
|
* conditions:
|
*
|
* The above copyright notice and this permission notice shall be
|
* included in all copies or substantial portions of the Software.
|
*
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
* OTHER DEALINGS IN THE SOFTWARE.
|
*/
|
|
(function ($) {
|
$.fn.inputlimiter = function (options) {
|
var opts = $.extend({}, $.fn.inputlimiter.defaults, options),
|
$elements = $(this);
|
if (opts.boxAttach && !$('#' + opts.boxId).length) {
|
$('<div/>').appendTo("body").attr({id: opts.boxId, 'class': opts.boxClass}).css({'position': 'absolute'}).hide();
|
// apply bgiframe if available
|
if ($.fn.bgiframe) {
|
$('#' + opts.boxId).bgiframe();
|
}
|
}
|
|
var inputlimiterKeyup = function (e) {
|
var $this = $(this),
|
count = counter($this.val());
|
if (!opts.allowExceed && count > opts.limit) {
|
$this.val(truncater($this.val()));
|
}
|
if (opts.boxAttach) {
|
$('#' + opts.boxId).css({
|
'width': $this.outerWidth() - ($('#' + opts.boxId).outerWidth() - $('#' + opts.boxId).width()) + 'px',
|
'left': $this.offset().left + 'px',
|
'top': ($this.offset().top + $this.outerHeight()) - 1 + 'px',
|
'z-index': 2000
|
});
|
}
|
var charsRemaining = (opts.limit - count > 0 ? opts.limit - count : 0),
|
remText = opts.remTextFilter(opts, charsRemaining),
|
limitText = opts.limitTextFilter(opts);
|
|
if (opts.limitTextShow) {
|
$('#' + opts.boxId).html(remText + ' ' + limitText);
|
// Check to see if the text is wrapping in the box
|
// If it is lets break it between the remaining test and the limit test
|
var textWidth = $("<span/>").appendTo("body").attr({id: '19cc9195583bfae1fad88e19d443be7a', 'class': opts.boxClass}).html(remText + ' ' + limitText).innerWidth();
|
$("#19cc9195583bfae1fad88e19d443be7a").remove();
|
if (textWidth > $('#' + opts.boxId).innerWidth()) {
|
$('#' + opts.boxId).html(remText + '<br />' + limitText);
|
}
|
// Show the limiter box
|
$('#' + opts.boxId).show();
|
} else {
|
$('#' + opts.boxId).html(remText).show();
|
}
|
},
|
|
inputlimiterKeypress = function (e) {
|
var count = counter($(this).val());
|
if (!opts.allowExceed && count > opts.limit) {
|
var modifierKeyPressed = e.ctrlKey || e.altKey || e.metaKey;
|
if (!modifierKeyPressed && (e.which >= 32 && e.which <= 122) && this.selectionStart === this.selectionEnd) {
|
return false;
|
}
|
}
|
},
|
|
inputlimiterBlur = function () {
|
var $this = $(this);
|
count = counter($this.val());
|
if (!opts.allowExceed && count > opts.limit) {
|
$this.val(truncater($this.val()));
|
}
|
if (opts.boxAttach) {
|
$('#' + opts.boxId).fadeOut('fast');
|
} else if (opts.remTextHideOnBlur) {
|
var limitText = opts.limitText;
|
limitText = limitText.replace(/\%n/g, opts.limit);
|
limitText = limitText.replace(/\%s/g, (opts.limit === 1 ? '' : 's'));
|
$('#' + opts.boxId).html(limitText);
|
}
|
},
|
|
counter = function (value) {
|
if (opts.limitBy.toLowerCase() === "words") {
|
return (value.length > 0 ? $.trim(value).replace(/\ +(?= )/g, '').split(' ').length : 0);
|
}
|
var count = value.length,
|
newlines = value.match(/\n/g);
|
if (newlines && opts.lineReturnCount > 1) {
|
count += newlines.length * (opts.lineReturnCount - 1);
|
}
|
return count;
|
},
|
|
truncater = function (value) {
|
if (opts.limitBy.toLowerCase() === "words") {
|
return $.trim(value).replace(/\ +(?= )/g, '').split(' ').splice(0, opts.limit).join(' ') + ' ';
|
}
|
return value.substring(0, opts.limit);
|
};
|
|
$(this).each(function (i) {
|
var $this = $(this);
|
if ((!options || !options.limit) && opts.useMaxlength && parseInt($this.attr('maxlength')) > 0 && parseInt($this.attr('maxlength')) != opts.limit) {
|
$this.inputlimiter($.extend({}, opts, { limit: parseInt($this.attr('maxlength')) }));
|
} else {
|
if (!opts.allowExceed && opts.useMaxlength && opts.limitBy.toLowerCase() === "characters") {
|
$this.attr('maxlength', opts.limit);
|
}
|
$this.unbind('.inputlimiter');
|
$this.bind('keyup.inputlimiter', inputlimiterKeyup);
|
$this.bind('keypress.inputlimiter', inputlimiterKeypress);
|
$this.bind('blur.inputlimiter', inputlimiterBlur);
|
}
|
});
|
};
|
|
$.fn.inputlimiter.remtextfilter = function (opts, charsRemaining) {
|
var remText = opts.remText;
|
if (charsRemaining === 0 && opts.remFullText !== null) {
|
remText = opts.remFullText;
|
}
|
remText = remText.replace(/\%n/g, charsRemaining);
|
remText = remText.replace(/\%s/g, (opts.zeroPlural ? (charsRemaining === 1 ? '' : 's') : (charsRemaining <= 1 ? '' : 's')));
|
return remText;
|
};
|
|
$.fn.inputlimiter.limittextfilter = function (opts) {
|
var limitText = opts.limitText;
|
limitText = limitText.replace(/\%n/g, opts.limit);
|
limitText = limitText.replace(/\%s/g, (opts.limit <= 1 ? '' : 's'));
|
return limitText;
|
};
|
|
$.fn.inputlimiter.defaults = {
|
limit: 255,
|
boxAttach: true,
|
boxId: 'limiterBox',
|
boxClass: 'limiterBox',
|
remText: '%n character%s remaining.',
|
remTextFilter: $.fn.inputlimiter.remtextfilter,
|
remTextHideOnBlur: true,
|
remFullText: null,
|
limitTextShow: true,
|
limitText: 'Field limited to %n character%s.',
|
limitTextFilter: $.fn.inputlimiter.limittextfilter,
|
zeroPlural: true,
|
allowExceed: false,
|
useMaxlength: true,
|
limitBy: 'characters',
|
lineReturnCount: 1
|
};
|
|
})(jQuery);
|
