| <!DOCTYPE html> |
| <!-- |
| | Test case which ensures that transitionend events are not fired on |
| | transitions that are canceled by being removed from the transition set before |
| | they are finished. |
| | https://drafts.csswg.org/date/2015-03-02/web-animations-css-integration/#css-transitions-events |
| --> |
| <html> |
| <head> |
| <style> |
| .block { |
| width: 200px; |
| padding: 5px 5px 5px 5px; |
| margin: 2px 2px 2px 2px; |
| height: 50px; |
| background-color: rgb(0, 0, 250); |
| font-size: 30px; |
| transition-duration: 100ms; |
| } |
| </style> |
| </head> |
| <body> |
| <div id="opacity"></div> |
| |
| <script> |
| var start = Date.now(); |
| var transitionsEnded = 0; |
| |
| if (window.testRunner) { |
| window.testRunner.waitUntilDone(); |
| } |
| |
| var opacityDiv = document.getElementById('opacity'); |
| opacityDiv.className = 'block'; |
| opacityDiv.style.opacity = 0; |
| opacityDiv.addEventListener('transitionend', function (e) { |
| e.target.innerHTML = ++transitionsEnded + ' ' + e.propertyName; |
| // Change the div to red when the handler is called. |
| e.target.style.backgroundColor = 'rgb(250, 0, 0)' |
| if (window.testRunner) { |
| // Do another layout to update the text. |
| window.testRunner.DoNonMeasuredLayout(); |
| } |
| }); |
| |
| window.addEventListener('load', function() { |
| // Start the transitions. |
| opacityDiv.style.transitionProperty = 'opacity'; |
| opacityDiv.style.opacity = 1; |
| |
| setTimeout( () => { |
| // Cancel the opacity transition by removing it from the transition set. |
| opacityDiv.style.transitionProperty = 'color'; |
| opacityDiv.innerHTML = "canceled" |
| // Change the div to green when the transition is canceled. |
| opacityDiv.style.backgroundColor = 'rgb(0, 250, 0)' |
| if (window.testRunner) { |
| // Do another layout to update the text. |
| window.testRunner.DoNonMeasuredLayout(); |
| } |
| }, 50); |
| |
| setTimeout( () => { |
| // Take a snapshot after the transitionend would have fired. |
| if (window.testRunner) { |
| window.testRunner.notifyDone(); |
| } |
| }, 200); |
| |
| if (window.testRunner) { |
| // Do another layout to start the transition. |
| window.testRunner.DoNonMeasuredLayout(); |
| } |
| }); |
| </script> |
| |
| </body> |
| </html> |
