| <!DOCTYPE html> |
| <html> |
| <head> |
| <script src="../../resources/js-test.js"></script> |
| <style> |
| #text { |
| margin-top: 1000px; /* Position outside the viewport so that we would have to scroll to see this element. */ |
| width: 256px; |
| height: 256px; |
| background-color: red; |
| color: white; |
| } |
| </style> |
| </head> |
| <body> |
| <p id="description"></p> |
| <div id="console"></div> |
| <div id="test-container"> |
| <p id="text">If you see this text then the test FAILed.</p> |
| <input type="text" id="text-field" placeholder="placeholder"> |
| </div> |
| <script> |
| function handleSelectionChange() { |
| // Trigger a re-layout of the text field. |
| document.getElementById("text-field").style.width = "20px"; |
| |
| // Use a zero timer to allow for a scroll to happen, if it were to happen. (We do not expect a scroll to happen). |
| window.setTimeout(() => { |
| shouldBeZero("window.scrollY"); |
| if (window.testRunner) |
| document.body.removeChild(document.getElementById("test-container")); |
| finishJSTest(); |
| }, 0); |
| }; |
| |
| window.jsTestIsAsync = true; |
| |
| description("Tests that the page is not scrolled to the current selection when an unfocused text field is laid out."); |
| |
| document.addEventListener("selectionchange", handleSelectionChange, { once: true }); |
| let text = document.getElementById("text"); |
| window.getSelection().setBaseAndExtent(text.firstChild, 0, text.firstChild, 0); |
| </script> |
| </body> |
| </html> |
