Source code
Revision control
Copy as Markdown
Other Tools
Test Info:
- This WPT test may be referenced by the following Test IDs:
- /visual-viewport/viewport-unscaled-scroll.html - WPT Dashboard Interop Dashboard
<!doctype html>
<html>
<head>
<title>Viewport: Scroll - no page scale</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, minimum-scale=1">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="viewport_support.js"></script>
</head>
<body>
<h1>Viewport: Scroll - no page scale</h1>
<h4>Test Description: This test checks that window.visualViewport returns correct offset and scroll values without any pinch-zoom page scale applied.</h4>
<div id="complete-notice">
<p>window.visualViewport's offsetLeft and offsetTop is (<span id="scroll-offset-log"></span>).</p>
<p>window.visualViewport's pageLeft and pageTop is (<span id="scroll-page-log"></span>).</p>
</div>
<div id="log"></div>
</body>
<script>
// Add overflow we can scroll.
document.body.style.width = "5000px";
document.body.style.height = "5000px";
scrollTo(1000, 1200);
test(function() {
assert_equals(window.visualViewport.offsetLeft, 0);
}, "offsetLeft must be 0.");
test(function() {
assert_equals(window.visualViewport.offsetTop, 0);
}, "offsetTop must be 0.");
test(function() {
assert_equals(window.visualViewport.pageLeft, 1000);
}, "pageLeft must reflect location of viewport in document.");
test(function() {
assert_equals(window.visualViewport.pageTop, 1200);
}, "pageTop must reflect location of viewport in document.");
document.getElementById("scroll-offset-log").innerText = window.visualViewport.offsetLeft+ ", " + window.visualViewport.offsetTop;
document.getElementById("scroll-page-log").innerText = window.visualViewport.pageLeft + ", " + window.visualViewport.pageTop;
scrollTo(0, 0);
</script>
</html>