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authorzottel <github@zottel.net>2012-04-20 13:42:33 +0200
committerzottel <github@zottel.net>2012-04-20 13:42:33 +0200
commit9663299da1be50eef4327778fae619fc6f9edef4 (patch)
tree5cd9b93f16c344cf896ac8d4e2a4a818fe21e783 /view/theme/diabook/diabook-pink/js/jquery.autogrow.textarea.js
parent041f74dc775424f686a1cd95c00e0d63bfc4b99c (diff)
parent0e25376e4afea4e5d96c233594feef0a35ca314c (diff)
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Merge remote branch 'upstream/master'
Diffstat (limited to 'view/theme/diabook/diabook-pink/js/jquery.autogrow.textarea.js')
-rw-r--r--view/theme/diabook/diabook-pink/js/jquery.autogrow.textarea.js46
1 files changed, 46 insertions, 0 deletions
diff --git a/view/theme/diabook/diabook-pink/js/jquery.autogrow.textarea.js b/view/theme/diabook/diabook-pink/js/jquery.autogrow.textarea.js
new file mode 100644
index 000000000..806e34f51
--- /dev/null
+++ b/view/theme/diabook/diabook-pink/js/jquery.autogrow.textarea.js
@@ -0,0 +1,46 @@
+(function($) {
+
+ /*
+ * Auto-growing textareas; technique ripped from Facebook
+ */
+ $.fn.autogrow = function(options) {
+
+ this.filter('textarea').each(function() {
+
+ var $this = $(this),
+ minHeight = $this.height(),
+ lineHeight = $this.css('lineHeight');
+
+ var shadow = $('<div></div>').css({
+ position: 'absolute',
+ top: -10000,
+ left: -10000,
+ width: $(this).width(),
+ fontSize: $this.css('fontSize'),
+ fontFamily: $this.css('fontFamily'),
+ lineHeight: $this.css('lineHeight'),
+ resize: 'none'
+ }).appendTo(document.body);
+
+ var update = function() {
+
+ var val = this.value.replace(/</g, '&lt;')
+ .replace(/>/g, '&gt;')
+ .replace(/&/g, '&amp;')
+ .replace(/\n/g, '<br/>');
+
+ shadow.html(val);
+ $(this).css('height', Math.max(shadow.height() + 20, minHeight));
+ }
+
+ $(this).change(update).keyup(update).keydown(update);
+
+ update.apply(this);
+
+ });
+
+ return this;
+
+ }
+
+})(jQuery); \ No newline at end of file