|
8
|
1 <!doctype html>
|
|
21
|
2 <html lang="en">
|
|
8
|
3 <head>
|
|
|
4 <meta name="viewport" content="width=device-width, initial-scale=1">
|
|
|
5 <style>
|
|
|
6 @import "/site.css";
|
|
|
7 @import "/dad.css";
|
|
|
8
|
|
20
|
9 [drop] {
|
|
|
10 margin-top: 8px;
|
|
|
11 margin-bottom: 8px;
|
|
|
12 }
|
|
|
13 [drag] {
|
|
8
|
14 background-color: LightGreen;
|
|
|
15 padding: 8px;
|
|
20
|
16 display: inline-block;
|
|
8
|
17 }
|
|
|
18 </style>
|
|
|
19 <script src="/dad.js"></script>
|
|
|
20 <script>
|
|
20
|
21 dad.whatToDrag = function(draggable) {
|
|
|
22 return draggable.parentNode;
|
|
|
23 };
|
|
|
24
|
|
8
|
25 dad.onEnter = function(event) {
|
|
20
|
26 let dropzone = event.dropzone;
|
|
|
27 let original = event.original;
|
|
|
28 let filter = original.getAttribute('drop');
|
|
|
29 if( dropzone.getAttribute('drop') !== filter ) {
|
|
|
30 return false;
|
|
|
31 }
|
|
24
|
32 let items = Array.from(document.querySelectorAll(`[drop="${filter}"]`));
|
|
|
33 let iDropzone = items.indexOf(dropzone);
|
|
|
34 let iOriginal = items.indexOf(original);
|
|
8
|
35 let where = iDropzone < iOriginal ? 'beforebegin' : 'afterend';
|
|
|
36 dropzone.insertAdjacentElement(where,original);
|
|
|
37 };
|
|
|
38
|
|
|
39 function init() {
|
|
20
|
40 let items = document.querySelectorAll('[drop]');
|
|
|
41 for( let item of items ) {
|
|
8
|
42 dad.setDropzone(item);
|
|
20
|
43 let filter = item.getAttribute('drop');
|
|
|
44 let drag = item.querySelector(`[drag="${filter}"]`);
|
|
|
45 dad.setDraggable(drag);
|
|
8
|
46 }
|
|
|
47 }
|
|
|
48 </script>
|
|
|
49 </head>
|
|
|
50 <body>
|
|
20
|
51 <h1>Nested Dynamic Lists</h1>
|
|
|
52 <ul>
|
|
8
|
53 <script>
|
|
20
|
54 for( let i=1; i<=5; i++ ) {
|
|
8
|
55 document.write(`
|
|
20
|
56 <li drop="top">${i} - <span drag=top>drag me</span>
|
|
|
57 <ul>
|
|
|
58 ` );
|
|
|
59 for( let j=1; j<=i; j++ ) {
|
|
|
60 document.write(`
|
|
|
61 <li drop="n${i}">${j} - <span drag="n${i}">drag me</span>
|
|
|
62 ` );
|
|
|
63 }
|
|
|
64 document.write(`
|
|
|
65 </ul>
|
|
|
66 </li>
|
|
8
|
67 ` );
|
|
|
68 }
|
|
|
69 </script>
|
|
20
|
70 </ul>
|
|
8
|
71 <p>bottom</p>
|
|
|
72 </body>
|
|
|
73 <script> init(); </script>
|
|
|
74 </html>
|
