Allow correct width calculation of hidden textarea elements, when the…

…y have a specified width. Fixes jackmoore#134

(fixes minor issues with nealbowers’ commit.)

autosize.jquery.json

@@ -2,7 +2,7 @@
 	"name": "autosize",
 	"title": "Autosize",
 	"description": "Automatically adjust textarea height based on user input.",
-	"version": "1.18.2",
+	"version": "1.18.3",
 	"dependencies": {
 		"jquery": ">=1.7"
 	},

bower.json

@@ -1,7 +1,7 @@
 {
 	"name": "jquery-autosize",
 	"description": "Automatically adjust textarea height based on user input.",
-	"version": "1.18.2",
+	"version": "1.18.3",
 	"dependencies": {
 		"jquery": ">=1.7"
 	},

jquery.autosize.js

@@ -1,5 +1,5 @@
 /*!
-	Autosize v1.18.2 - 2014-01-06
+	Autosize v1.18.3 - 2014-01-10
 	Automatically adjust textarea height based on user input.
 	(c) 2014 Jack Moore - http://www.jacklmoore.com/autosize
 	license: http://www.opensource.org/licenses/mit-license.php
@@ -91,24 +91,27 @@
 			});
 
 			// The mirror width must exactly match the textarea width, so using getBoundingClientRect because it doesn't round the sub-pixel value.
+			// window.getComputedStyle, getBoundingClientRect returning a width are unsupported, but also unneeded in IE8 and lower.
 			function setWidth() {
 				var width;
 				var style = window.getComputedStyle ? window.getComputedStyle(ta, null) : false;
 
 				if (style) {
+
 					width = ta.getBoundingClientRect().width;
 
+					if (width === 0) {
+						width = parseInt(style.width,10);
+					}
+
 					$.each(['paddingLeft', 'paddingRight', 'borderLeftWidth', 'borderRightWidth'], function(i,val){
 						width -= parseInt(style[val],10);
 					});
+				} else {
+					width = Math.max($ta.width(), 0);
 				}
-				if (!style || width == 0) {
-					// window.getComputedStyle, getBoundingClientRect returning a width are unsupported and unneeded in IE8 and lower.
-                    // In some situations, if the element is offscreen, then the above approach will result in 0 width,
-                    // but the approach below works.
-					mirror.style.width = Math.max($ta.width(), 0);
-				}
-                mirror.style.width = width + 'px';
+
+				mirror.style.width = width + 'px';
 			}
 
 			function initMirror() {

package.json

@@ -1,7 +1,7 @@
 {
 	"name": "jquery-autosize",
 	"description": "Automatically adjust textarea height based on user input.",
-	"version": "1.18.2",
+	"version": "1.18.3",
 	"dependencies": {},
 	"keywords": [
 		"form",

readme.md

@@ -4,6 +4,9 @@ Small jQuery plugin to allow dynamic resizing of textarea height, so that it gro
 
 ## Changelog
 
+### v1.18.3 - 2014/1/10
+* Allow correct width calculation of hidden textarea elements, when they have a specified width.  Fixes #134
+
 ### v1.18.2 - 2014/1/6
 * Checked getComputedStyle return value to avoid potential error exception.  Fixes #133