| <!DOCTYPE html> |
| <style> |
| br { |
| touch-action: none; |
| } |
| </style> |
| <!-- |
| This is a regression test against a double unregistration of a touch action |
| event handler on a <br> element. When the document finishes loading and is |
| attached to the view, all of its LayoutObjects are destroyed and recreated. If |
| a LayoutObject had a touch action associated with it, it will need to remove |
| the fake event handler it registered for it in the EventHandlerRegistry. |
| However, when the document gets detached, all of the event handlers within it |
| are automatically unregistered. When the LayoutObject tries to unregister its |
| own handler after the fact, it is no longer there and we hit an assertion |
| failure. |
| |
| Note that this test doesn't use js-test.js because it also inadvertedly |
| triggers the same bug by appending <br> elements to the document. |
| |
| The test passes if it doesn't trigger an assertion failure in a debug build. |
| --> |
| <script> |
| if (window.testRunner) |
| testRunner.dumpAsText(); |
| </script> |
| PASS<br> |
