@@ -27,6 +27,10 @@ +

diff --git a/src/main/webapp/assets/elastic/jquery.elastic.source.js b/src/main/webapp/assets/elastic/jquery.elastic.source.js new file mode 100644 index 0000000..9b1ed2b --- /dev/null +++ b/src/main/webapp/assets/elastic/jquery.elastic.source.js @@ -0,0 +1,162 @@ +/** +* @name Elastic +* @descripton Elastic is jQuery plugin that grow and shrink your textareas automatically +* @version 1.6.11 +* @requires jQuery 1.2.6+ +* +* @author Jan Jarfalk +* @author-email jan.jarfalk@unwrongest.com +* @author-website http://www.unwrongest.com +* +* @licence MIT License - http://www.opensource.org/licenses/mit-license.php +*/ + +(function($){ + jQuery.fn.extend({ + elastic: function() { + + // We will create a div clone of the textarea + // by copying these attributes from the textarea to the div. + var mimics = [ + 'paddingTop', + 'paddingRight', + 'paddingBottom', + 'paddingLeft', + 'fontSize', + 'lineHeight', + 'fontFamily', + 'width', + 'fontWeight', + 'border-top-width', + 'border-right-width', + 'border-bottom-width', + 'border-left-width', + 'borderTopStyle', + 'borderTopColor', + 'borderRightStyle', + 'borderRightColor', + 'borderBottomStyle', + 'borderBottomColor', + 'borderLeftStyle', + 'borderLeftColor' + ]; + + return this.each( function() { + + // Elastic only works on textareas + if ( this.type !== 'textarea' ) { + return false; + } + + var $textarea = jQuery(this), + $twin = jQuery('

').css({ + 'position' : 'absolute', + 'display' : 'none', + 'word-wrap' : 'break-word', + 'white-space' :'pre-wrap' + }), + 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; + + // Opera returns max-height of -1 if not set + if (maxheight < 0) { maxheight = Number.MAX_VALUE; } + + // Append the twin to the DOM + // We are going to meassure the height of this, not the textarea. + $twin.appendTo($textarea.parent()); + + // Copy the essential styles (mimics) from the textarea to the twin + var i = mimics.length; + while(i--){ + $twin.css(mimics[i].toString(),$textarea.css(mimics[i].toString())); + } + + // Updates the width of the twin. (solution for textareas with widths in percent) + function setTwinWidth(){ + var curatedWidth = Math.floor(parseInt($textarea.width(),10)); + if($twin.width() !== curatedWidth){ + $twin.css({'width': curatedWidth + 'px'}); + + // Update height of textarea + update(true); + } + } + + // Sets a given height and overflow state on the textarea + function setHeightAndOverflow(height, overflow){ + + var curratedHeight = Math.floor(parseInt(height,10)); + if($textarea.height() !== curratedHeight){ + $textarea.css({'height': curratedHeight + 'px','overflow':overflow}); + } + } + + // This function will update the height of the textarea if necessary + function update(forced) { + + // Get curated content from the textarea. + var textareaContent = $textarea.val().replace(/&/g,'&').replace(/ {2}/g, ' ').replace(/<|>/g, '>').replace(/\n/g, '
'); + + // Compare curated content with curated twin. + var twinContent = $twin.html().replace(/
/ig,'
'); + + if(forced || textareaContent+' ' !== twinContent){ + + // Add an extra white space so new rows are added when you are at the end of a row. + $twin.html(textareaContent+' '); + + // Change textarea height if twin plus the height of one line differs more than 3 pixel from textarea height + if(Math.abs($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'); + } + + } + + } + + } + + // Hide scrollbars + $textarea.css({'overflow':'hidden'}); + + // Update textarea size on keyup, change, cut and paste + $textarea.bind('keyup change cut paste', function(){ + update(); + }); + + // Update width of twin if browser or textarea is resized (solution for textareas with widths in percent) + $(window).bind('resize', setTwinWidth); + $textarea.bind('resize', setTwinWidth); + $textarea.bind('update', update); + + // Compact textarea on blur + $textarea.bind('blur',function(){ + if($twin.height() < maxheight){ + if($twin.height() > minheight) { + $textarea.height($twin.height()); + } else { + $textarea.height(minheight); + } + } + }); + + // And this line is to catch the browser paste event + $textarea.bind('input paste',function(e){ setTimeout( update, 250); }); + + // Run update once when elastic is initialized + update(); + + }); + + } + }); +})(jQuery); \ No newline at end of file