| 39 | |
| 40 | |
| 41 | var notify = function notify(callback, root, MO) { |
| 42 | var loop = function loop(nodes, added, removed, connected, pass) { |
| 43 | for (var i = 0, length = nodes.length; i < length; i++) { |
| 44 | var node = nodes[i]; |
| 45 | |
| 46 | if (pass || QSA$1 in node) { |
| 47 | if (connected) { |
| 48 | if (!added.has(node)) { |
| 49 | added.add(node); |
| 50 | removed["delete"](node); |
| 51 | callback(node, connected); |
| 52 | } |
| 53 | } else if (!removed.has(node)) { |
| 54 | removed.add(node); |
| 55 | added["delete"](node); |
| 56 | callback(node, connected); |
| 57 | } |
| 58 | |
| 59 | if (!pass) loop(node[QSA$1]('*'), added, removed, connected, TRUE); |
| 60 | } |
| 61 | } |
| 62 | }; |
| 63 | |
| 64 | var observer = new (MO || MutationObserver)(function (records) { |
| 65 | for (var added = new Set(), removed = new Set(), i = 0, length = records.length; i < length; i++) { |
| 66 | var _records$i = records[i], |
| 67 | addedNodes = _records$i.addedNodes, |
| 68 | removedNodes = _records$i.removedNodes; |
| 69 | loop(removedNodes, added, removed, FALSE, FALSE); |
| 70 | loop(addedNodes, added, removed, TRUE, FALSE); |
| 71 | } |
| 72 | }); |
| 73 | observer.add = add; |
| 74 | observer.add(root || document); |
| 75 | return observer; |
| 76 | }; |
| 77 | |
| 78 | var QSA = 'querySelectorAll'; |
| 79 | var _self = self, |