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jquery.autogrow updates #15

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jquery.autogrow updates #15

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10a43b1
added support for mouse-driven paste events; cleaned up some issues w…
sunnywalker Jun 20, 2013
5b672d2
another JSHint fix and minor optimization
sunnywalker Jun 20, 2013
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22 changes: 9 additions & 13 deletions javascripts/jquery.autogrow-textarea.js
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Original file line number Diff line number Diff line change
Expand Up @@ -4,17 +4,19 @@
* Auto-growing textareas; technique ripped from Facebook
*
* http://github.com/jaz303/jquery-grab-bag/tree/master/javascripts/jquery.autogrow-textarea.js
*
* Requires jQuery 1.4+
*/
$.fn.autogrow = function(options)
$.fn.autogrow = function()
{
return this.filter('textarea').each(function()
{
var self = this;
var $self = $(self);
var minHeight = $self.height();
var noFlickerPad = $self.hasClass('autogrow-short') ? 0 : parseInt($self.css('lineHeight')) || 0;
var noFlickerPad = $self.hasClass('autogrow-short') ? 0 : parseInt($self.css('lineHeight'),10) || 0;

var shadow = $('<div></div>').css({
var shadow = $('<div />').css({
position: 'absolute',
top: -10000,
left: -10000,
Expand All @@ -24,23 +26,17 @@
fontWeight: $self.css('fontWeight'),
lineHeight: $self.css('lineHeight'),
resize: 'none',
'word-wrap': 'break-word'
'word-wrap': 'break-word'
}).appendTo(document.body);

var update = function(event)
{
var times = function(string, number)
{
for (var i=0, r=''; i<number; i++) r += string;
return r;
};

var val = self.value.replace(/</g, '&lt;')
.replace(/>/g, '&gt;')
.replace(/&/g, '&amp;')
.replace(/\n$/, '<br/>&nbsp;')
.replace(/\n/g, '<br/>')
.replace(/ {2,}/g, function(space){ return times('&nbsp;', space.length - 1) + ' ' });
.replace(/ {2,}/g, function(space){ return new Array(space.length).join('&nbsp;') + ' '; });

// Did enter get pressed? Resize in this keydown event so that the flicker doesn't occur.
if (event && event.data && event.data.event === 'keydown' && event.keyCode === 13) {
Expand All @@ -50,9 +46,9 @@
shadow.css('width', $self.width());
shadow.html(val + (noFlickerPad === 0 ? '...' : '')); // Append '...' to resize pre-emptively.
$self.height(Math.max(shadow.height() + noFlickerPad, minHeight));
}
};

$self.change(update).keyup(update).keydown({event:'keydown'},update);
$self.change(update).keyup(update).keydown({event:'keydown'},update).bind('input paste',update);
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+1 for adding bind('input paste')

$(window).resize(update);

update();
Expand Down
1 change: 1 addition & 0 deletions javascripts/jquery.autogrow-textarea.min.js
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