003.html (5615B)
1 <!DOCTYPE html> 2 <title>drag & drop - microdata changes after dragstart</title> 3 <style> 4 body > div { 5 height: 200px; 6 width: 200px; 7 background-color: orange; 8 position: absolute; 9 top: 8px; 10 left: 8px; 11 } 12 body > div * { 13 display: none; 14 } 15 body > div + div { 16 background-color: navy; 17 left: 250px; 18 } 19 body > div + div + div { 20 background-color: fuchsia; 21 left: 500px; 22 } 23 p:first-of-type { 24 margin-top: 220px; 25 } 26 </style> 27 28 <script> 29 30 function makeEl(eltype,props,contents) { 31 var elem = document.createElement(eltype); 32 for( var i in props ) { 33 if( props.hasOwnProperty(i) ) { 34 elem.setAttribute(i,props[i]); 35 } 36 } 37 if( contents ) { 38 elem.innerHTML = contents; 39 } 40 return elem; 41 } 42 43 var orange, fails = [], doneonce = false; 44 window.onload = function() { 45 orange = document.getElementsByTagName('div')[0]; 46 47 orange.appendChild( makeEl('meta',{itemprop:'foo',content:'test'}) ); 48 orange.appendChild( makeEl('audio',{itemprop:'bar',src:'test'},'fail') ); 49 orange.appendChild( makeEl('embed',{itemprop:'foo',src:'test'}) ); 50 orange.appendChild( makeEl('iframe',{itemprop:'bar',src:'test'},'fail') ); 51 orange.appendChild( makeEl('img',{itemprop:'foo',src:'test'}) ); 52 orange.appendChild( makeEl('source',{itemprop:'bar',src:'test'}) ); 53 orange.appendChild( makeEl('track',{itemprop:'foo',src:'test'}) ); 54 orange.appendChild( makeEl('video',{itemprop:'bar',src:'test'},'fail') ); 55 orange.appendChild( makeEl('a',{itemprop:'foo',href:'test'},'fail') ); 56 orange.appendChild( makeEl('area',{itemprop:'bar',href:'test'}) ); 57 orange.appendChild( makeEl('link',{itemprop:'foo',href:'test'}) ); 58 orange.appendChild( makeEl('object',{itemprop:'bar',data:'test'},'fail') ); 59 orange.appendChild( makeEl('time',{itemprop:'foo'},'fail') ); 60 orange.appendChild( makeEl('time',{itemprop:'baz',datetime:'test'},'fail') ); 61 orange.appendChild( makeEl('div',{itemprop:'baz'},'test') ); 62 orange.appendChild( makeEl('madeuponthespot',{itemprop:'foo'},'test') ); 63 orange.appendChild( makeEl('madeuponthespot',{itemprop:'foo',content:'test',src:'test',href:'test',data:'test',datetime:'test',value:'test'},'test') ); 64 orange.appendChild( makeEl('input',{itemprop:'foo',value:'test'},'test') ); 65 66 orange.ondragstart = function(e) { 67 e.dataTransfer.effectAllowed = 'copy'; 68 e.dataTransfer.setData('Text', 'dummy text'); 69 var err; 70 if( err = checkprops(e.dataTransfer.getData('application/microdata+json')) ) { 71 fails[fails.length] = e.type + ' ' + err; 72 } 73 //microdata should be stored and reused after the dragstart event 74 //removing the item should not cause the microdata tohave disappeared when the drop event fires 75 this.itemScope = false; 76 }; 77 orange.nextSibling.ondragenter = orange.nextSibling.ondragleave = orange.nextSibling.ondragover = 78 orange.ondrag = orange.ondragend = function(e) { 79 if( e.type == 'dragover' || e.type == 'dragenter' ) { 80 e.preventDefault(); 81 e.dataTransfer.dropEffect = 'copy'; 82 } 83 if( e.dataTransfer.getData('application/microdata+json') ) { 84 fails[fails.length] = e.type + ' unexpectedly had microdata (security restriction)'; 85 } 86 }; 87 orange.nextSibling.ondrop = function(e) { 88 var err, md = e.dataTransfer.getData('application/microdata+json'); 89 orange.itemScope = true; 90 if( err = checkprops(md) ) { 91 fails[fails.length] = e.type + ' ' + err; 92 } 93 if( e.type != 'drop' ) { return; } 94 if( doneonce ) { return; } 95 doneonce = true; 96 setTimeout(function () { 97 document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS'; 98 fails = []; 99 }, 200 ); 100 }; 101 102 }; 103 function checkprops(md) { 104 var i; 105 if( !md ) { return 'no microdata'; } 106 md = JSON.parse(md); 107 if( !md.items || md.items.length != 1 ) { return 'no items'; } 108 if( !md.items[0].properties ) { return 'no properties'; } 109 if( !md.items[0].properties.foo ) { return 'no properties.foo'; } 110 if( !md.items[0].properties.bar ) { return 'no properties.bar'; } 111 if( !md.items[0].properties.baz ) { return 'no properties.baz'; } 112 if( md.items[0].properties.foo.length != 10 ) { return 'properties.foo length '+md.items[0].properties.foo.length+' instead of 10'; } 113 if( md.items[0].properties.bar.length != 6 ) { return 'properties.bar length '+md.items[0].properties.bar.length+' instead of 6'; } 114 if( md.items[0].properties.baz.length != 2 ) { return 'properties.baz length '+md.items[0].properties.baz.length+' instead of 2'; } 115 for( i = 0; i < 10; i++ ) { 116 if( md.items[0].properties.foo[i] != orange.properties.namedItem('foo').getValues()[i] ) { return 'properties.foo['+i+'] <i>'+md.items[0].properties.foo[i]+'</i> instead of <i>'+orange.properties.namedItem('foo').getValues()[i]+'</i>'; } 117 } 118 for( i = 0; i < 6; i++ ) { 119 if( md.items[0].properties.bar[i] != orange.properties.namedItem('bar').getValues()[i] ) { return 'properties.bar['+i+'] <i>'+md.items[0].properties.bar[i]+'</i> instead of <i>'+orange.properties.namedItem('bar').getValues()[i]+'</i>'; } 120 } 121 for( i = 0; i < 2; i++ ) { 122 if( md.items[0].properties.baz[i] != orange.properties.namedItem('baz').getValues()[i] ) { return 'properties.baz['+i+'] <i>'+md.items[0].properties.baz[i]+'</i> instead of <i>'+orange.properties.namedItem('baz').getValues()[i]+'</i>'; } 123 } 124 return ''; 125 } 126 127 </script> 128 129 <div draggable='true' itemscope></div><div></div><div></div> 130 131 <p>Use your pointing device to drag the orange box to the pink box, then back to the blue box, and release it.</p> 132 <noscript><p>Enable JavaScript and reload</p></noscript>