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1 <!doctype html>
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2 <html lang="en">
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3 <head>
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4 <meta name="viewport" content="width=device-width, initial-scale=1">
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5 <style>
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6 @import "/site.css";
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7 @import "/dad.css";
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8
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9 [item] {
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10 background-color: LightGreen;
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11 padding: 8px;
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12 }
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13 [item][in] {
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14 border: 1px solid;
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15 }
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16 </style>
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17 <script src="/dad.js"></script>
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18 <script>
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19 dad.onEnter = function(event) {
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20 event.dropzone.setAttribute('in','');
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21 };
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22
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23 dad.onLeave = function(event) {
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24 event.dropzone.removeAttribute('in');
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25 };
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26
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27 function indexOf(a,el) {
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28 for( let i=0; i<a.length; i++ ) {
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29 if( a[i] === el )
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30 return i;
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31 }
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32 return -1;
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33 }
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34
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35 dad.onDrop = function(event) {
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36 let dropzone = event.dropzone;
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37 if( !dropzone )
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38 return;
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39 let original = event.original
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40 let items = document.querySelectorAll('[item]');
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41 let iDropzone = indexOf(items,dropzone);
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42 let iOriginal = indexOf(items,original);
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43 let where = iDropzone < iOriginal ? 'beforebegin' : 'afterend';
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44 dropzone.insertAdjacentElement(where,original);
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45 };
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46
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47 function init() {
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48 let items = document.querySelectorAll('[item]');
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49 for( let i=0; i<items.length; i++ ) {
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50 let item = items[i];
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51 dad.setDraggable(item);
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52 dad.setDropzone(item);
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53 }
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54 }
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55 </script>
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56 </head>
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57 <body>
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58 <h1>List</h1>
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59 <script>
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60 for( let i=1; i<=10; i++ ) {
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61 document.write(`
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62 <p item>${i} - drag me</p>
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63 ` );
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64 }
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65 </script>
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66 <p>bottom</p>
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67 </body>
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68 <script> init(); </script>
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69 </html>
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