HELPER-showorigin.html (707B)
1 <!doctype html> 2 <html> 3 <head> 4 <title>Readout of .origin</title> 5 <style type="text/css"> 6 html, body { margin: 0; padding: 0; } 7 div { height: 100px; width: 100px; background: blue; } 8 </style> 9 <script type="text/javascript"> 10 window.onload = function () { 11 var blue = document.getElementsByTagName('div')[0]; 12 blue.ondragenter = blue.ondragover = function (e) { 13 e.preventDefault(); 14 }; 15 blue.ondrop = function (e) { 16 e.preventDefault(); 17 if( e.dataTransfer.origin === 'null' ) { 18 document.body.innerHTML = 'null (string)'; 19 } else { 20 document.body.innerHTML = e.dataTransfer.origin; 21 } 22 }; 23 }; 24 </script> 25 </head> 26 <body> 27 28 <div></div> 29 30 </body> 31 </html>