<!DOCTYPE> <html> <head> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Checking zoomToFocusedInput scrolls that focused element is into iframe</title> <script type="application/javascript" src="apz_test_utils.js"></script> <script type="application/javascript" src="apz_test_native_event_utils.js"></script> <script src="/tests/SimpleTest/paint_listener.js"></script> </head> <body> <div style="height: 8000px;">ABC</div> <iframe style="height: 30em;" src="helper_iframe_textarea.html"></iframe> </div> <!-- Leave additional room below the element so it can be scrolled to the center --> <div style="height: 1000px;">ABC</div> <script type="application/javascript"> async function test() { let utils = SpecialPowers.getDOMWindowUtils(window); let iframe = document.querySelector("iframe"); let textarea = iframe.contentDocument.querySelector("textarea"); for (let i = 0; i < 20; i++) { textarea.value += "foo\n"; } let win = iframe.contentWindow; iframe.focus(); textarea.focus(); await waitToClearOutAnyPotentialScrolls(win); textarea.setSelectionRange(0, 0); window.scrollTo(0, 0); await waitToClearOutAnyPotentialScrolls(win); is(0, window.scrollY, "scroll position is reset"); let transformEndPromise = promiseTransformEnd(); utils.zoomToFocusedInput(); await promiseApzFlushedRepaints(); ok(window.scrollY > 0, "scroll position isn't top"); ok(iframe.contentWindow.scrollY > 0, "scroll position into iframe isn't top"); let prevPosY = window.scrollY; await transformEndPromise; await promiseApzFlushedRepaints(); window.scrollTo(0, 0); await waitToClearOutAnyPotentialScrolls(win); is(0, window.scrollY, "scroll position is reset"); textarea.setSelectionRange(textarea.value.length, textarea.value.length); transformEndPromise = promiseTransformEnd(); utils.zoomToFocusedInput(); await transformEndPromise; await promiseApzFlushedRepaints(); ok(window.scrollY > 0, "scroll position isn't top"); ok(iframe.contentWindow.scrollY > 0, "scroll position into iframe isn't top"); ok(prevPosY < window.scrollY, "scroll position is different from first line of textarea"); } waitUntilApzStable().then(test).then(subtestDone, subtestFailed); </script> </body> </html>