This repository has been archived on 2024-11-20. You can view files and clone it, but cannot push or open issues or pull requests.
old-scribeengine/scribeengine/public/scripts/jquery.elastic.js
Raoul Snyman 72aed21a39 - Added a small CSS fix for short pages.
- Set the login page to redirect to the referer except when there's already a redirect url specified, and when the previous url is the login page.
- Linked the ScribeEngine in the page footer to the project page.
- Added auto-expanding comment text areas.
2010-02-24 13:40:39 +02:00

1 line
1.7 KiB
JavaScript

(function(jQuery){jQuery.fn.extend({elastic:function(){var mimics=['paddingTop','paddingRight','paddingBottom','paddingLeft','fontSize','lineHeight','fontFamily','width','fontWeight'];return this.each(function(){if(this.type!='textarea'){return false}var $textarea=jQuery(this),$twin=jQuery('<div />').css({'position':'absolute','display':'none','word-wrap':'break-word'}),lineHeight=parseInt($textarea.css('line-height'),10)||parseInt($textarea.css('font-size'),'10'),minheight=parseInt($textarea.css('height'),10)||lineHeight*3,maxheight=parseInt($textarea.css('max-height'),10)||Number.MAX_VALUE,goalheight=0,i=0;if(maxheight<0){maxheight=Number.MAX_VALUE}$twin.appendTo($textarea.parent());var i=mimics.length;while(i--){$twin.css(mimics[i].toString(),$textarea.css(mimics[i].toString()))}function setHeightAndOverflow(height,overflow){curratedHeight=Math.floor(parseInt(height,10));if($textarea.height()!=curratedHeight){$textarea.css({'height':curratedHeight+'px','overflow':overflow})}}function update(){var textareaContent=$textarea.val().replace(/&/g,'&amp;').replace(/ /g,'&nbsp;').replace(/<|>/g,'&gt;').replace(/\n/g,'<br />');var twinContent=$twin.html();if(textareaContent+'&nbsp;'!=twinContent){$twin.html(textareaContent+'&nbsp;');if(Math.abs($twin.height()+lineHeight-$textarea.height())>3){var goalheight=$twin.height()+lineHeight;if(goalheight>=maxheight){setHeightAndOverflow(maxheight,'auto')}else if(goalheight<=minheight){setHeightAndOverflow(minheight,'hidden')}else{setHeightAndOverflow(goalheight,'hidden')}}}}$textarea.css({'overflow':'hidden'});$textarea.keyup(function(){update()});$textarea.live('input paste',function(e){setTimeout(update,250)});update()})}})})(jQuery);