tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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031.xhtml (6420B)

      1 <?xml version="1.0" encoding="utf-8"?>
      2 <html xmlns="http://www.w3.org/1999/xhtml">
      3 <head>
      4 <title>dataTransfer.items during canvas drag and drop</title>
      5 <style type="text/css">
      6 div
      7  {height:100px;
      8  width:100px;
      9  padding:20px;
     10  background-color:silver;}
     11 </style>
     12 <script type="application/ecmascript">
     13 <![CDATA[
     14 var dataTypes = ['text/plain', 'text/uri-list', 'application/xml', 'application/xhtml+xml', 'application/mathml+xml', 'image/svg+xml', 'text/html', 'text/x-example'],
     15 data = ['PASS', 'data:text/plain,1', '<result>PASS</result>', '<html xmlns="http://www.w3.org/1999/xhtml"><head><title>Data store item</title></head><body><p>PASS</p></body></html>', '<math xmlns="http://www.w3.org/1998/Math/MathML"><mn>1</mn></math>', '<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="100px" height="50px" viewBox="0 0 100 50"><text x="0" y="40" font-size="40" fill="green">PASS</text></svg>', '<!DOCTYPE html><html><head><title>Data store item</title></head><body><p>PASS</p></body></html>', 'PASS'],
     16 e = 0, result = true;
     17 function start(event)
     18  {event.dataTransfer.effectAllowed = 'copy';
     19  for(var i = 0; i != dataTypes.length; i++)
     20    {event.dataTransfer.setData(dataTypes[i], data[i]);}
     21  for(var i = event.dataTransfer.items.length; i != 0; i--)
     22    {if(dataTypes.indexOf(event.dataTransfer.items[i-1].type) == -1)
     23      {delete event.dataTransfer.items[i-1]}
     24    }
     25  if(event.dataTransfer.items.length != dataTypes.length)
     26      {say('items.length (ondragstart) : FAIL (items.length should be' + dataTypes.length + ')')}
     27  for(var i = 0; i != event.dataTransfer.items.length; i++)
     28    {if(event.dataTransfer.items[i].kind != 'string')
     29      {say('Item kind (ondragstart): FAIL (items[' + i + '].kind should be string)')}
     30    if(event.dataTransfer.items[i].type != dataTypes[i])
     31      {say('Item type (ondragstart): FAIL (items[' + i + '].type should be' + dataTypes[i] + ')')}
     32    event.dataTransfer.items[i].getAsString(
     33      function ()
     34        {if(arguments[0] != data[e++])
     35          {say('getAsString : FAIL (items[' + i + '].getAsString should pass' + data[e] + ')')}
     36        }
     37      );
     38    }
     39  }
     40 function dragElement(event)
     41  {event.dataTransfer.items.clear();
     42  if(event.dataTransfer.items.length != dataTypes.length)
     43    {say('items.length (ondrag) : FAIL (items.length should be' + dataTypes.length + ')')}
     44  for(var i = 0; i != event.dataTransfer.items.length; i++)
     45    {if(event.dataTransfer.items[i].kind != 'string')
     46      {say('Item kind (ondrag): FAIL (items[' + i + '].kind should be string)')}
     47    if(event.dataTransfer.items[i].type != dataTypes[i])
     48      {say('Item type (ondrag): FAIL (items[' + i + '].type should be' + dataTypes[i] + ')')}
     49    event.dataTransfer.items[i].getAsString(
     50      function ()
     51        {if(arguments[0])
     52          {say('getAsString : FAIL (items[' + i + '].getAsString should not reveal data to drag event handler)')}
     53        }
     54      );
     55    }
     56  }
     57 function enterElement(event)
     58  {event.preventDefault();
     59  event.dataTransfer.items.clear();
     60  if(event.dataTransfer.items.length != dataTypes.length)
     61    {say('items.length (ondragenter) : FAIL (items.length should be' + dataTypes.length + ')')}
     62  for(var i = 0; i != event.dataTransfer.items.length; i++)
     63    {delete event.dataTransfer.items[i];
     64    if(event.dataTransfer.items[i].kind != 'string')
     65      {say('Item kind (ondragenter): FAIL (items[' + i + '].kind should be string)')}
     66    if(event.dataTransfer.items[i].type != dataTypes[i])
     67      {say('Item type (ondragenter): FAIL (items[' + i + '].type should be' + dataTypes[i] + ')')}
     68    event.dataTransfer.items[i].getAsString(
     69      function ()
     70        {if(arguments[0])
     71          {say('getAsString : FAIL (items[' + i + '].getAsString should not reveal data to drag event handler)')}
     72        }
     73      );
     74    }
     75  }
     76 function overElement(event)
     77  {event.preventDefault();
     78  event.dataTransfer.items.clear();
     79  if(event.dataTransfer.items.length != dataTypes.length)
     80    {say('items.length (ondragover) : FAIL (items.length should be' + dataTypes.length + ')')}
     81  for(var i = 0; i != event.dataTransfer.items.length; i++)
     82    {if(event.dataTransfer.items[i].kind != 'string')
     83      {say('Item kind (ondragover): FAIL (items[' + i + '].kind should be string)')}
     84    if(event.dataTransfer.items[i].type != dataTypes[i])
     85      {say('Item type (ondragover): FAIL (items[' + i + '].type should be' + dataTypes[i] + ')')}
     86    event.dataTransfer.items[i].getAsString(
     87      function ()
     88        {if(arguments[0])
     89          {say('getAsString : FAIL (items[' + i + '].getAsString should not reveal data to dragover event handler)')}
     90        }
     91      );
     92    }
     93  }
     94 function dataDrop(event)
     95  {e = 0;
     96  event.dataTransfer.items.clear();
     97  if(event.dataTransfer.items.length != dataTypes.length)
     98      {say('items.length (ondrop) : FAIL (items.length should be' + dataTypes.length + ')')}
     99  for(var i = 0; i != event.dataTransfer.items.length; i++)
    100    {delete event.dataTransfer.items[i];
    101    if(event.dataTransfer.items[i].kind != 'string')
    102      {say('Item kind (ondrop): FAIL (items[' + i + '].kind should be string)')}
    103    if(event.dataTransfer.items[i].type != dataTypes[i])
    104      {say('Item type (ondrop): FAIL (items[' + i + '].type should be' + dataTypes[i] + ')')}
    105    event.dataTransfer.items[i].getAsString(
    106      function ()
    107        {if(arguments[0] != data[e++])
    108          {say('getAsString : FAIL (items[' + i + '].getAsString should pass' + data[e] + ')')}
    109        }
    110      );
    111    }
    112  document.querySelector('div').setAttribute('style','background-color:' + (result?'green':'red'));}
    113 function say(it)
    114  {result = false;
    115  document.querySelector('pre').appendChild(document.createTextNode(it + '\n'));}
    116 ]]>
    117 </script>
    118 </head>
    119 <body>
    120 <p>
    121  <canvas width="100" height="100" draggable="true" ondragstart="start(event)" ondrag="dragElement(event)">Canvas</canvas>
    122 </p>
    123 <p>Drag canvas pattern to the silver box below and drop it. Silver box should turn green.</p>
    124 <div ondragenter="enterElement(event)" ondragover="overElement(event)" ondrop="dataDrop(event)"/>
    125 <pre/>
    126 <script type="application/ecmascript">
    127 var canvas = document.querySelector('canvas'),
    128 c = canvas.getContext('2d');
    129 for(var x = 0; x != 50; x++)
    130  {c.fillStyle = (x%2 == 0)?'navy':'white';
    131  c.beginPath();
    132  c.moveTo(x,x);
    133  c.lineTo(100-x,x);
    134  c.lineTo(100-x,100-x);
    135  c.lineTo(x,100-x);
    136  c.closePath();
    137  c.fill();}
    138 data[1] = canvas.toDataURL('image/png');
    139 </script>
    140 </body>
    141 </html>