tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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adoption.html (2990B)

      1 <!doctype html>
      2 <meta charset=utf-8>
      3 <title>Adopting an image updates the image data</title>
      4 <script src=/resources/testharness.js></script>
      5 <script src=/resources/testharnessreport.js></script>
      6 <div id=log></div>
      7 
      8 <!-- tests -->
      9 
     10 <div id="adoptTest1"></div>
     11 <picture id="adoptTest2">
     12 <source srcset="/images/green-2x2.png">
     13 </picture>
     14 
     15 <script>
     16 function resolve(url) {
     17  if (url === "") {
     18    return url;
     19  }
     20  var a = document.createElement('a');
     21  a.href = url;
     22  return a.href;
     23 }
     24 
     25 function t(desc, data, expect) {
     26  async_test(function(t) {
     27    var d = (new DOMParser()).parseFromString(data, 'text/html');
     28    var i = d.querySelector('img');
     29    i.onerror = this.unreached_func('got unexpected error event');
     30    i.onload = this.step_func_done(function() {
     31      assert_equals(i.currentSrc, resolve(expect));
     32    });
     33    var n = d.querySelector('[adopt-node]');
     34    document.adoptNode(n);
     35  }, desc);
     36 }
     37 
     38 onload = function() {
     39 
     40  t('img (src only)',
     41    '<img src="/images/green-1x1.png" adopt-node>',
     42    '/images/green-1x1.png');
     43 
     44  t('img (src only), parent is picture',
     45    '<picture adopt-node><img src="/images/green-1x1.png"></picture>',
     46    '/images/green-1x1.png');
     47 
     48  t('img (src only), previous sibling is source',
     49    '<picture adopt-node><source srcset="/images/green-1x1.png"><img src="/images/green-2x2.png"></picture>',
     50    '/images/green-1x1.png');
     51 
     52  t('img (srcset 1 cand)',
     53    '<img srcset="/images/green-1x1.png" adopt-node>',
     54    '/images/green-1x1.png');
     55 
     56  t('img (srcset 1 cand), parent is picture',
     57    '<picture adopt-node><img srcset="/images/green-1x1.png"></picture>',
     58    '/images/green-1x1.png');
     59 
     60  t('img (srcset 1 cand), previous sibling is source',
     61    '<picture adopt-node><source srcset="/images/green-1x1.png"><img srcset="/images/green-2x2.png"></picture>',
     62    '/images/green-1x1.png');
     63 
     64  async_test(function(t) {
     65    var d = (new DOMParser()).parseFromString('<template><img src="/images/green-1x1.png"></template>', 'text/html');
     66    var i = d.querySelector('template').content.querySelector('img').cloneNode(1);
     67    i.onerror = this.unreached_func('got unexpected error event');
     68    i.onload = this.step_func_done(function() {
     69      assert_equals(i.currentSrc, resolve('/images/green-1x1.png'));
     70    });
     71 
     72    document.getElementById('adoptTest1').appendChild(i);
     73  }, 'adopt a cloned img in template');
     74 
     75  async_test(function(t) {
     76    var preload = new Image();
     77    preload.src = '/images/green-1x1.png?' + Math.random();
     78    preload.onload = t.step_func(function() {
     79      var d = (new DOMParser()).parseFromString('<img src="' + preload.src + '">', 'text/html');
     80      var i = d.querySelector('img');
     81      i.onerror = this.unreached_func('got unexpected error event');
     82      i.onload = this.step_func_done(function() {
     83        assert_equals(i.currentSrc, resolve("/images/green-2x2.png"));
     84      });
     85 
     86      var p = document.getElementById('adoptTest2');
     87      p.appendChild(i);
     88    });
     89  }, 'adoption is from appendChild');
     90 };
     91 </script>