I was messing around with some Jquery to have a slider control the size of font in a text area and used something like:
...
slide: function( event, ui ) {
$('#t_area').css("font-size", ui.value + "px");
}
....
within the function to control the slider. I noticed that even when I didn't have text in the textarea, it still increased in size when I moved the slider (and also grew too large when there was text in it.) So I was wondering if there was a way to increase the size of the text without having that side effect?
Thanks
CSS:
textarea { max-width:300px;max-height:300px; }
You could just use css for this.
textarea{
width: 100px;
height: 100px;
}
Set dimensions on the textarea
. Demo: http://jsfiddle.net/6qZAh/
textarea {
width: 100px;
height: 50px;
}
Without explicit dimensions, the size is based on the rows/cols of the textarea
. Even when not those values are not explicitly set, the user agent uses a default.
Demo: http://jsfiddle.net/6qZAh/1/
$("textarea").on("click",function(){
var t = $(this);
alert(t.prop("rows"));
alert(t.prop("cols"));
});
In Chrome and IE9, this shows me "2" and "20".
This appears to be spec-driven (emphasis mine):
Rows
If applying the rules for parsing non-negative integers to the attribute's value results in a number greater than zero, then the element's character height is that value; otherwise, it is 2.
Cols
If applying the rules for parsing non-negative integers to the attribute's value results in a number greater than zero, then the element's character width is that value; otherwise, it is 20.
if($('#t_area').text() != ""){
$('#t_area').css("font-size", ui.value + "px");
}
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