-/*!
- Autosize v1.18.1 - 2013-11-05
- Automatically adjust textarea height based on user input.
- (c) 2013 Jack Moore - http://www.jacklmoore.com/autosize
- license: http://www.opensource.org/licenses/mit-license.php
-*/
-(function ($) {
- var
- defaults = {
- className: 'autosizejs',
- append: '',
- callback: false,
- resizeDelay: 10
- },
-
- // border:0 is unnecessary, but avoids a bug in Firefox on OSX
- copy = '<textarea tabindex="-1" style="position:absolute; top:-999px; left:0; right:auto; bottom:auto; border:0; padding: 0; -moz-box-sizing:content-box; -webkit-box-sizing:content-box; box-sizing:content-box; word-wrap:break-word; height:0 !important; min-height:0 !important; overflow:hidden; transition:none; -webkit-transition:none; -moz-transition:none;"/>',
-
- // line-height is conditionally included because IE7/IE8/old Opera do not return the correct value.
- typographyStyles = [
- 'fontFamily',
- 'fontSize',
- 'fontWeight',
- 'fontStyle',
- 'letterSpacing',
- 'textTransform',
- 'wordSpacing',
- 'textIndent'
- ],
-
- // to keep track which textarea is being mirrored when adjust() is called.
- mirrored,
-
- // the mirror element, which is used to calculate what size the mirrored element should be.
- mirror = $(copy).data('autosize', true)[0];
-
- // test that line-height can be accurately copied.
- mirror.style.lineHeight = '99px';
- if ($(mirror).css('lineHeight') === '99px') {
- typographyStyles.push('lineHeight');
- }
- mirror.style.lineHeight = '';
-
- $.fn.autosize = function (options) {
- if (!this.length) {
- return this;
- }
-
- options = $.extend({}, defaults, options || {});
-
- if (mirror.parentNode !== document.body) {
- $(document.body).append(mirror);
- }
-
- return this.each(function () {
- var
- ta = this,
- $ta = $(ta),
- maxHeight,
- minHeight,
- boxOffset = 0,
- callback = $.isFunction(options.callback),
- originalStyles = {
- height: ta.style.height,
- overflow: ta.style.overflow,
- overflowY: ta.style.overflowY,
- wordWrap: ta.style.wordWrap,
- resize: ta.style.resize
- },
- timeout,
- width = $ta.width();
-
- if ($ta.data('autosize')) {
- // exit if autosize has already been applied, or if the textarea is the mirror element.
- return;
- }
- $ta.data('autosize', true);
-
- if ($ta.css('box-sizing') === 'border-box' || $ta.css('-moz-box-sizing') === 'border-box' || $ta.css('-webkit-box-sizing') === 'border-box'){
- boxOffset = $ta.outerHeight() - $ta.height();
- }
-
- // IE8 and lower return 'auto', which parses to NaN, if no min-height is set.
- minHeight = Math.max(parseInt($ta.css('minHeight'), 10) - boxOffset || 0, $ta.height());
-
- $ta.css({
- overflow: 'hidden',
- overflowY: 'hidden',
- wordWrap: 'break-word', // horizontal overflow is hidden, so break-word is necessary for handling words longer than the textarea width
- resize: ($ta.css('resize') === 'none' || $ta.css('resize') === 'vertical') ? 'none' : 'horizontal'
- });
-
- // The mirror width must exactly match the textarea width, so using getBoundingClientRect because it doesn't round the sub-pixel value.
- function setWidth() {
- var style, width;
-
- if ('getComputedStyle' in window) {
- style = window.getComputedStyle(ta, null);
- width = ta.getBoundingClientRect().width;
-
- $.each(['paddingLeft', 'paddingRight', 'borderLeftWidth', 'borderRightWidth'], function(i,val){
- width -= parseInt(style[val],10);
- });
-
- mirror.style.width = width + 'px';
- }
- else {
- // window.getComputedStyle, getBoundingClientRect returning a width are unsupported and unneeded in IE8 and lower.
- mirror.style.width = Math.max($ta.width(), 0) + 'px';
- }
- }
-
- function initMirror() {
- var styles = {};
-
- mirrored = ta;
- mirror.className = options.className;
- maxHeight = parseInt($ta.css('maxHeight'), 10);
-
- // mirror is a duplicate textarea located off-screen that
- // is automatically updated to contain the same text as the
- // original textarea. mirror always has a height of 0.
- // This gives a cross-browser supported way getting the actual
- // height of the text, through the scrollTop property.
- $.each(typographyStyles, function(i,val){
- styles[val] = $ta.css(val);
- });
- $(mirror).css(styles);
-
- setWidth();
-
- // Chrome-specific fix:
- // When the textarea y-overflow is hidden, Chrome doesn't reflow the text to account for the space
- // made available by removing the scrollbar. This workaround triggers the reflow for Chrome.
- if (window.chrome) {
- var width = ta.style.width;
- ta.style.width = '0px';
- var ignore = ta.offsetWidth;
- ta.style.width = width;
- }
- }
-
- // Using mainly bare JS in this function because it is going
- // to fire very often while typing, and needs to very efficient.
- function adjust() {
- var height, original;
-
- if (mirrored !== ta) {
- initMirror();
- } else {
- setWidth();
- }
-
- mirror.value = ta.value + options.append;
- mirror.style.overflowY = ta.style.overflowY;
- original = parseInt(ta.style.height,10);
-
- // Setting scrollTop to zero is needed in IE8 and lower for the next step to be accurately applied
- mirror.scrollTop = 0;
-
- mirror.scrollTop = 9e4;
-
- // Using scrollTop rather than scrollHeight because scrollHeight is non-standard and includes padding.
- height = mirror.scrollTop;
-
- if (maxHeight && height > maxHeight) {
- ta.style.overflowY = 'scroll';
- height = maxHeight;
- } else {
- ta.style.overflowY = 'hidden';
- if (height < minHeight) {
- height = minHeight;
- }
- }
-
- height += boxOffset;
-
- if (original !== height) {
- ta.style.height = height + 'px';
- if (callback) {
- options.callback.call(ta,ta);
- }
- }
- }
-
- function resize () {
- clearTimeout(timeout);
- timeout = setTimeout(function(){
- var newWidth = $ta.width();
-
- if (newWidth !== width) {
- width = newWidth;
- adjust();
- }
- }, parseInt(options.resizeDelay,10));
- }
-
- if ('onpropertychange' in ta) {
- if ('oninput' in ta) {
- // Detects IE9. IE9 does not fire onpropertychange or oninput for deletions,
- // so binding to onkeyup to catch most of those occasions. There is no way that I
- // know of to detect something like 'cut' in IE9.
- $ta.on('input.autosize keyup.autosize', adjust);
- } else {
- // IE7 / IE8
- $ta.on('propertychange.autosize', function(){
- if(event.propertyName === 'value'){
- adjust();
- }
- });
- }
- } else {
- // Modern Browsers
- $ta.on('input.autosize', adjust);
- }
-
- // Set options.resizeDelay to false if using fixed-width textarea elements.
- // Uses a timeout and width check to reduce the amount of times adjust needs to be called after window resize.
-
- if (options.resizeDelay !== false) {
- $(window).on('resize.autosize', resize);
- }
-
- // Event for manual triggering if needed.
- // Should only be needed when the value of the textarea is changed through JavaScript rather than user input.
- $ta.on('autosize.resize', adjust);
-
- // Event for manual triggering that also forces the styles to update as well.
- // Should only be needed if one of typography styles of the textarea change, and the textarea is already the target of the adjust method.
- $ta.on('autosize.resizeIncludeStyle', function() {
- mirrored = null;
- adjust();
- });
-
- $ta.on('autosize.destroy', function(){
- mirrored = null;
- clearTimeout(timeout);
- $(window).off('resize', resize);
- $ta
- .off('autosize')
- .off('.autosize')
- .css(originalStyles)
- .removeData('autosize');
- });
-
- // Call adjust in case the textarea already contains text.
- adjust();
- });
- };
-}(window.jQuery || window.$)); // jQuery or jQuery-like library, such as Zepto
\ No newline at end of file
+!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e||self).autosize=t()}(this,function(){var e,t,n="function"==typeof Map?new Map:(e=[],t=[],{has:function(t){return e.indexOf(t)>-1},get:function(n){return t[e.indexOf(n)]},set:function(n,o){-1===e.indexOf(n)&&(e.push(n),t.push(o))},delete:function(n){var o=e.indexOf(n);o>-1&&(e.splice(o,1),t.splice(o,1))}}),o=function(e){return new Event(e,{bubbles:!0})};try{new Event("test")}catch(e){o=function(e){var t=document.createEvent("Event");return t.initEvent(e,!0,!1),t}}function r(e){var t=n.get(e);t&&t.destroy()}function i(e){var t=n.get(e);t&&t.update()}var l=null;return"undefined"==typeof window||"function"!=typeof window.getComputedStyle?((l=function(e){return e}).destroy=function(e){return e},l.update=function(e){return e}):((l=function(e,t){return e&&Array.prototype.forEach.call(e.length?e:[e],function(e){return function(e){if(e&&e.nodeName&&"TEXTAREA"===e.nodeName&&!n.has(e)){var t,r=null,i=null,l=null,d=function(){e.clientWidth!==i&&c()},u=function(t){window.removeEventListener("resize",d,!1),e.removeEventListener("input",c,!1),e.removeEventListener("keyup",c,!1),e.removeEventListener("autosize:destroy",u,!1),e.removeEventListener("autosize:update",c,!1),Object.keys(t).forEach(function(n){e.style[n]=t[n]}),n.delete(e)}.bind(e,{height:e.style.height,resize:e.style.resize,overflowY:e.style.overflowY,overflowX:e.style.overflowX,wordWrap:e.style.wordWrap});e.addEventListener("autosize:destroy",u,!1),"onpropertychange"in e&&"oninput"in e&&e.addEventListener("keyup",c,!1),window.addEventListener("resize",d,!1),e.addEventListener("input",c,!1),e.addEventListener("autosize:update",c,!1),e.style.overflowX="hidden",e.style.wordWrap="break-word",n.set(e,{destroy:u,update:c}),"vertical"===(t=window.getComputedStyle(e,null)).resize?e.style.resize="none":"both"===t.resize&&(e.style.resize="horizontal"),r="content-box"===t.boxSizing?-(parseFloat(t.paddingTop)+parseFloat(t.paddingBottom)):parseFloat(t.borderTopWidth)+parseFloat(t.borderBottomWidth),isNaN(r)&&(r=0),c()}function a(t){var n=e.style.width;e.style.width="0px",e.style.width=n,e.style.overflowY=t}function s(){if(0!==e.scrollHeight){var t=function(e){for(var t=[];e&&e.parentNode&&e.parentNode instanceof Element;)e.parentNode.scrollTop&&t.push({node:e.parentNode,scrollTop:e.parentNode.scrollTop}),e=e.parentNode;return t}(e),n=document.documentElement&&document.documentElement.scrollTop;e.style.height="",e.style.height=e.scrollHeight+r+"px",i=e.clientWidth,t.forEach(function(e){e.node.scrollTop=e.scrollTop}),n&&(document.documentElement.scrollTop=n)}}function c(){s();var t=Math.round(parseFloat(e.style.height)),n=window.getComputedStyle(e,null),r="content-box"===n.boxSizing?Math.round(parseFloat(n.height)):e.offsetHeight;if(r<t?"hidden"===n.overflowY&&(a("scroll"),s(),r="content-box"===n.boxSizing?Math.round(parseFloat(window.getComputedStyle(e,null).height)):e.offsetHeight):"hidden"!==n.overflowY&&(a("hidden"),s(),r="content-box"===n.boxSizing?Math.round(parseFloat(window.getComputedStyle(e,null).height)):e.offsetHeight),l!==r){l=r;var i=o("autosize:resized");try{e.dispatchEvent(i)}catch(e){}}}}(e)}),e}).destroy=function(e){return e&&Array.prototype.forEach.call(e.length?e:[e],r),e},l.update=function(e){return e&&Array.prototype.forEach.call(e.length?e:[e],i),e}),l});