pastebin.parentNode.org » Viewing Paste

Pasted

by white

on 2006-02-09 03:05

as JavaScript

Create New

http://pastebin.parentnode.org/

Links this one

http://pastebin.parentnode.org/78

Comment

JavaScript Code for Tutorial #11

function insertAtCaret(obj, text) {
		if(document.selection) {
			obj.focus();
			var orig = obj.value.replace(/\r\n/g, "\n");
			var range = document.selection.createRange();

if(range.parentElement() != obj) {
				return false;
			}

range.text = text;
			
			var actual = tmp = obj.value.replace(/\r\n/g, "\n");

for(var diff = 0; diff < orig.length; diff++) {
				if(orig.charAt(diff) != actual.charAt(diff)) break;
			}

for(var index = 0, start = 0; 
				tmp.match(text) 
					&& (tmp = tmp.replace(text, "")) 
					&& index <= diff; 
				index = start + text.length
			) {
				start = actual.indexOf(text, index);
			}
		} else if(obj.selectionStart) {
			var start = obj.selectionStart;
			var end   = obj.selectionEnd;

obj.value = obj.value.substr(0, start) 
				+ text 
				+ obj.value.substr(end, obj.value.length);
		}
		
		if(start != null) {
			setCaretTo(obj, start + text.length);
		} else {
			obj.value += text;
		}
	}
	
	function setCaretTo(obj, pos) {
		if(obj.createTextRange) {
			var range = obj.createTextRange();
			range.move('character', pos);
			range.select();
		} else if(obj.selectionStart) {
			obj.focus();
			obj.setSelectionRange(pos, pos);
		}
	}