ElkArte Community Modern, Free, Powerful
Community building forum software

// Surrounds the selected text with text1 and text2.
function surroundText(text1, text2, oTextHandle)
{
	// Can a text range be created?
	if ('caretPos' in oTextHandle && 'createTextRange' in oTextHandle)
	{
		var caretPos = oTextHandle.caretPos, temp_length = caretPos.text.length;

		caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == ' ' ? text1 + caretPos.text + text2 + ' ' : text1 + caretPos.text + text2;

		if (temp_length == 0)
		{
			caretPos.moveStart('character', -text2.length);
			caretPos.moveEnd('character', -text2.length);
			caretPos.select();
		}
		else
			oTextHandle.focus(caretPos);
	}
	// Mozilla text range wrap.
	else if ('selectionStart' in oTextHandle)
	{
		var begin = oTextHandle.value.substr(0, oTextHandle.selectionStart);
		var selection = oTextHandle.value.substr(oTextHandle.selectionStart, oTextHandle.selectionEnd - oTextHandle.selectionStart);
		var end = oTextHandle.value.substr(oTextHandle.selectionEnd);
		var newCursorPos = oTextHandle.selectionStart;
		var scrollPos = oTextHandle.scrollTop;

		oTextHandle.value = begin + text1 + selection + text2 + end;

		if (oTextHandle.setSelectionRange)
		{
			var goForward = is_opera ? text1.match(/\n/g).length : 0, goForwardAll = is_opera ? (text1 + text2).match(/\n/g).length : 0;
			if (selection.length == 0)
				oTextHandle.setSelectionRange(newCursorPos + text1.length + goForward, newCursorPos + text1.length + goForward);
			else
				oTextHandle.setSelectionRange(newCursorPos, newCursorPos + text1.length + selection.length + text2.length + goForwardAll);
			oTextHandle.focus();
		}
		oTextHandle.scrollTop = scrollPos;
	}
	// Just put them on the end, then.
	else
	{
		oTextHandle.value += text1 + text2;
		oTextHandle.focus(oTextHandle.value.length - 1);
	}
}