| <!DOCTYPE html> |
| <html> |
| <style> |
| .box { |
| margin: 20px; |
| width: 100px; |
| height: 100px; |
| border: 1px solid black; |
| } |
| |
| </style> |
| <script> |
| if (window.testRunner) |
| testRunner.dumpAsText(); |
| |
| window.addEventListener('load', () => { |
| document.getElementById('passive').addEventListener('wheel', () => { |
| console.log('passive listener'); |
| }, { passive: true }); |
| |
| document.getElementById('active').addEventListener('wheel', () => { |
| console.log('active listener'); |
| }, { passive: false }); |
| |
| if (window.internals) |
| document.getElementById('console').textContent = internals.layerTreeAsText(document, internals.LAYER_TREE_INCLUDES_EVENT_REGION | internals.LAYER_TREE_INCLUDES_ROOT_LAYER_PROPERTIES); |
| |
| }, false); |
| </script> |
| <body> |
| <div class="box" id="passive">Passive</div> |
| <div class="box" id="active">Active</div> |
| <pre id="console"></pre> |
| </body> |
| </html> |
