<!DOCTYPE html>
<meta charset="utf-8">
<title>HTML: window.open `features`: negative values for legacy `innerwidth`, `innerheight`</title>
<meta name=timeout content=long>
<link rel="help" href="https://html.spec.whatwg.org/multipage/#apis-for-creating-and-navigating-browsing-contexts-by-name">
<!-- user agents are not required to support open features other than `noopener`
and on some platforms position and size features don't make sense -->
<meta name="flags" content="may" />
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/PrefixedPostMessage.js"></script>
<script>
var windowURL = 'resources/message-opener.html';
var featuresPrefix = `top=0,left=0,`;
// https://html.spec.whatwg.org/multipage/infrastructure.html#rules-for-parsing-integers
setup (() => {
// Before running tests, open a window using features that mimic
// what would happen if the features tested here were set to invalid
// values in later tests.
// In cases where the value for `innerwidth` or `innerheight` is
// is less than the browser's minimum allowed value for that dimension,
// but NOT 0, the value affected will become the browser's minimum allowed value.
// This should result in a minimally-sized window for later comparison
var featureString = `${featuresPrefix}innerwidth=1,innerheight=1`;
var prefixedMessage = new PrefixedMessageTest();
prefixedMessage.onMessage((data, e) => {
e.source.close();
runWindowTests(data);
});
var win = window.open(prefixedMessage.url(windowURL), '', featureString);
});
function runWindowTests (baselineDimensions) {
// Negative values for `innerwidth` should result in a window with minimum
// valid allowed width
[ 'innerwidth=-404',
'innerwidth=-404.5',
'innerwidth=-404e1'
].forEach(feature => {
async_test(t => {
var prefixedMessage = new PrefixedMessageTest();
var featureString = `${featuresPrefix}height=405,${feature}`;
prefixedMessage.onMessage(t.step_func_done((data, e) => {
e.source.close();
assert_equals(data.width, baselineDimensions.width, `"${feature} is negative and should result in a minimally-wide window"`);
}));
var win = window.open(prefixedMessage.url(windowURL) + "&expected_innerWidth=" + baselineDimensions.width, '', featureString);
}, `features "${feature}" should NOT set "width=404"`);
});
// Negative values for `innerheight` should result in a window with minimum
// valid allowed height
[ 'innerheight=-404',
'innerheight=-404.5',
'innerheight=-404e1'
].forEach(feature => {
async_test(t => {
var prefixedMessage = new PrefixedMessageTest();
var featureString = `${featuresPrefix}width=404,${feature}`;
prefixedMessage.onMessage(t.step_func_done((data, e) => {
e.source.close();
assert_equals(data.height, baselineDimensions.height, `"${feature} is negative and should result in a minimal-height window"`);
}));
var win = window.open(prefixedMessage.url(windowURL) + '&expected_innerHeight=' + baselineDimensions.height, '', featureString);
}, `features "${feature}" should NOT set "height=404"`);
});
}
</script>
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