I have an iframe (id: 'chat'
) with designMode='on'
in Chrome.
On Enter keypress event I call the function send()
, which takes the iframe contents and writes it to a socket. My problem is that when clearing the iframe, I lose focus.
How to do I set the focus so I can continue to type text in the iframe?
function send(){
var $iframe = $('#chat');
var text = $iframe.contents().text() + "\n";
socket.send(text);
// When this is done, the focus is lost
// If commented, the focus will not be lost
$iframe.contents().find('body').empty();
// My different failed attempts to regain the focus
//$iframe.focus();
//$iframe.contents().focus();
//$iframe.contents().find('body').focus();
//$iframe.contents().find('body').parent().focus();
//$iframe[0].contentWindow.focus();
// I've also tried all the above with timers
//setTimeout( function(){ $('#chat').contents().focus(); }, 100);
}
I've tried many of the solutions on other questions, but none seems to work.
The trick is to first set focus on the body and then create a Range
.
var win = iframe.contentWindow;
var range = win.document.createRange();
range.setStart(win.document.body, 0);
range.setEnd(win.document.body, 0);
win.document.body.focus();
win.getSelection().addRange(range);