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|---|
| (Empty) | |
| 1 <html> |
| 2 <head> |
| 3 <link rel="help" href="http://www.whatwg.org/specs/web-apps/current-work/multipa
ge/webappapis.html#eventhandler"> |
| 4 <script src="../js/resources/js-test-pre.js"></script> |
| 5 </head> |
| 6 <body> |
| 7 <div id="div"></div> |
| 8 <script> |
| 9 description("This test checks that EventHandler attributes only accept JS functi
ons as input."); |
| 10 |
| 11 var div = document.getElementById("div"); |
| 12 var callbackCount = 0; |
| 13 |
| 14 function callback() { |
| 15 ++callbackCount; |
| 16 } |
| 17 |
| 18 function dispatchKeyEvent() |
| 19 { |
| 20 var event = new KeyboardEvent('keydown', { bubbles: true, cancelable: true,
view: null, keyIdentifier: 'Enter' }); |
| 21 div.dispatchEvent(event); |
| 22 } |
| 23 |
| 24 // Input is a JS function, this should work. |
| 25 shouldBeNull('div.onkeydown'); |
| 26 shouldNotThrow('div.onkeydown = callback'); |
| 27 shouldBe('div.onkeydown', 'callback'); |
| 28 shouldBe('callbackCount', '0'); |
| 29 dispatchKeyEvent(); |
| 30 shouldBe('callbackCount', '1'); |
| 31 |
| 32 // Non callable input should be treated as null. |
| 33 var o = { handleEvent: callback }; |
| 34 shouldNotBe('div.onkeydown', 'null'); |
| 35 shouldNotThrow('div.onkeydown = o'); |
| 36 shouldBeNull('div.onkeydown'); |
| 37 dispatchKeyEvent(); |
| 38 shouldBe('callbackCount', '1'); |
| 39 |
| 40 // Test null assignment. |
| 41 shouldNotThrow('div.onkeydown = callback'); |
| 42 shouldBe('div.onkeydown', 'callback'); |
| 43 shouldNotThrow('div.onkeydown = null'); |
| 44 shouldBeNull('div.onkeydown'); |
| 45 </script> |
| 46 <script src="../js/resources/js-test-post.js"></script> |
| 47 </body> |
| 48 </html> |
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Chromium Code Reviews
Issue 22687002:
Treat non-callable input as null for EventHandler attributes (Closed)
Base URL: svn://svn.chromium.org/blink/trunk