Get caret position or offset from inputor
This is the core function that working in At.js.
Now, It just become an simple jquery plugin so that everybody can use it.
And, of course, At.js is using this plugin too.
http://ichord.github.com/Caret.js/
// Get caret position
$('#inputor').caret('position'); // => {left: 15, top: 30, height: 20}
// Get caret offset
$('#inputor').caret('offset'); // => {left: 300, top: 400, height: 20}
var fixPos = 20
// Get position of the 20th char in the inputor.
// not working in `contentEditable` mode
$('#inputor').caret('position', fixPos);
// Get offset of the 20th char.
// not working in `contentEditable` mode
$('#inputor').caret('offset', fixPos);
// more
// Get caret position from the first char in the inputor.
$('#inputor').caret('pos'); // => 15
// Set caret position in the inputor
$('#inputor').caret('pos', 15);
// set iframe context
// NOTE: Related to the iframe's cooridinate.
// You might want to get the iframe's offset/position on your own
$('#inputor').caret('offset', {iframe: theIframe});
$('#inputor').caret('position', {iframe: theIframe});
$('#inputor').caret('pos', 15, {iframe: theIframe});
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