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<!DOCTYPE html>
<title>Testing scrollOptions' behavior for Element.scroll* and scroll-behavior on the root of the main frame</title>
<meta name="timeout" content="long"/>
<meta name="viewport" content="width=device-width,minimum-scale=1,initial-scale=1">
<link rel="author" title="Frédéric Wang" href="mailto:fwang@igalia.com">
<link rel="help" href="https://drafts.csswg.org/cssom-view/#propdef-scroll-behavior">
<link rel="help" href="https://drafts.csswg.org/cssom-view/#scrolling-box">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/dom/events/scrolling/scroll_support.js"></script>
<script src="support/scroll-behavior.js"></script>
<style>
body {
margin: 0;
}
.autoBehavior {
scroll-behavior: auto;
}
.smoothBehavior {
scroll-behavior: smooth;
}
</style>
<div id="log">
</div>
<div id="pageContent" style="position: absolute; left: 0; top: 0;">
<div id="elementToReveal" style="position: absolute; display: inline-block; width: 10px; height: 15px; background: black;"></div>
</div>
<script>
var pageLoaded = async_test("Page loaded");
var scrollingElement, styledElement, elementToRevealLeft, elementToRevealTop;
window.addEventListener("load", pageLoaded.step_func_done(function() {
scrollingElement = document.scrollingElement;
styledElement = document.documentElement;
pageContent.style.width = (10 + window.innerWidth) * 5 + "px";
pageContent.style.height = (20 + window.innerHeight) * 6 + "px";
elementToRevealLeft = (10 + window.innerWidth) * 3;
elementToRevealTop = (20 + window.innerHeight) * 4;
elementToReveal.style.left = elementToRevealLeft + "px";
elementToReveal.style.top = elementToRevealTop + "px";
add_completion_callback(() => { resetScroll(scrollingElement); });
promise_test(async () => {
await waitForCompositorReady();
}, "Make sure the page is ready for animation.");
["scroll", "scrollTo", "scrollBy", "scrollIntoView"].forEach((scrollFunction) => {
promise_test(() => {
resetScroll(scrollingElement);
setScrollBehavior(styledElement, "autoBehavior");
assert_equals(scrollingElement.scrollLeft, 0);
assert_equals(scrollingElement.scrollTop, 0);
scrollNode(scrollingElement, scrollFunction, null, elementToRevealLeft, elementToRevealTop);
assert_equals(scrollingElement.scrollLeft, elementToRevealLeft, "Should set scrollLeft immediately");
assert_equals(scrollingElement.scrollTop, elementToRevealTop, "Should set scrollTop immediately");
return new Promise((resolve) => { resolve(); });
}, `Main frame with auto scroll-behavior ; ${scrollFunction}() with default behavior`);
promise_test(() => {
resetScroll(scrollingElement);
setScrollBehavior(styledElement, "autoBehavior");
assert_equals(scrollingElement.scrollLeft, 0);
assert_equals(scrollingElement.scrollTop, 0);
scrollNode(scrollingElement, scrollFunction, "auto", elementToRevealLeft, elementToRevealTop);
assert_equals(scrollingElement.scrollLeft, elementToRevealLeft, "Should set scrollLeft immediately");
assert_equals(scrollingElement.scrollTop, elementToRevealTop, "Should set scrollTop immediately");
return new Promise((resolve) => { resolve(); });
}, `Main frame with auto scroll-behavior ; ${scrollFunction}() with auto behavior`);
promise_test(() => {
resetScroll(scrollingElement);
setScrollBehavior(styledElement, "autoBehavior");
assert_equals(scrollingElement.scrollLeft, 0);
assert_equals(scrollingElement.scrollTop, 0);
scrollNode(scrollingElement, scrollFunction, "instant", elementToRevealLeft, elementToRevealTop);
assert_equals(scrollingElement.scrollLeft, elementToRevealLeft, "Should set scrollLeft immediately");
assert_equals(scrollingElement.scrollTop, elementToRevealTop, "Should set scrollTop immediately");
return new Promise((resolve) => { resolve(); });
}, `Main frame with auto scroll-behavior ; ${scrollFunction}() with instant behavior`);
promise_test(() => {
resetScroll(scrollingElement);
setScrollBehavior(styledElement, "autoBehavior");
assert_equals(scrollingElement.scrollLeft, 0);
assert_equals(scrollingElement.scrollTop, 0);
scrollNode(scrollingElement, scrollFunction, "smooth", elementToRevealLeft, elementToRevealTop);
assert_less_than(scrollingElement.scrollLeft, elementToRevealLeft, "Should not set scrollLeft immediately");
assert_less_than(scrollingElement.scrollTop, elementToRevealTop, "Should not set scrollTop immediately");
return waitForScrollEnd(scrollingElement).then(() => {
assert_equals(scrollingElement.scrollLeft, elementToRevealLeft, "Final value of scrollLeft");
assert_equals(scrollingElement.scrollTop, elementToRevealTop, "Final value of scrollTop");
});
}, `Main frame with auto scroll-behavior ; ${scrollFunction}() with smooth behavior`);
promise_test(() => {
resetScroll(scrollingElement);
setScrollBehavior(styledElement, "smoothBehavior");
assert_equals(scrollingElement.scrollLeft, 0);
assert_equals(scrollingElement.scrollTop, 0);
scrollNode(scrollingElement, scrollFunction, null, elementToRevealLeft, elementToRevealTop);
assert_less_than(scrollingElement.scrollLeft, elementToRevealLeft, "Should not set scrollLeft immediately");
assert_less_than(scrollingElement.scrollTop, elementToRevealTop, "Should not set scrollTop immediately");
return waitForScrollEnd(scrollingElement).then(() => {
assert_equals(scrollingElement.scrollLeft, elementToRevealLeft, "Final value of scrollLeft");
assert_equals(scrollingElement.scrollTop, elementToRevealTop, "Final value of scrollTop");
});
}, `Main frame with smooth scroll-behavior ; ${scrollFunction}() with default behavior`);
promise_test(() => {
resetScroll(scrollingElement);
setScrollBehavior(styledElement, "smoothBehavior");
assert_equals(scrollingElement.scrollLeft, 0);
assert_equals(scrollingElement.scrollTop, 0);
scrollNode(scrollingElement, scrollFunction, "auto", elementToRevealLeft, elementToRevealTop);
assert_less_than(scrollingElement.scrollLeft, elementToRevealLeft, "Should not set scrollLeft immediately");
assert_less_than(scrollingElement.scrollTop, elementToRevealTop, "Should not set scrollTop immediately");
return waitForScrollEnd(scrollingElement).then(() => {
assert_equals(scrollingElement.scrollLeft, elementToRevealLeft, "Final value of scrollLeft");
assert_equals(scrollingElement.scrollTop, elementToRevealTop, "Final value of scrollTop");
});
}, `Main frame with smooth scroll-behavior ; ${scrollFunction}() with auto behavior`);
promise_test(() => {
resetScroll(scrollingElement);
setScrollBehavior(styledElement, "smoothBehavior");
assert_equals(scrollingElement.scrollLeft, 0);
assert_equals(scrollingElement.scrollTop, 0);
scrollNode(scrollingElement, scrollFunction, "instant", elementToRevealLeft, elementToRevealTop);
assert_equals(scrollingElement.scrollLeft, elementToRevealLeft, "Should set scrollLeft immediately");
assert_equals(scrollingElement.scrollTop, elementToRevealTop, "Should set scrollTop immediately");
return new Promise((resolve) => { resolve(); });
}, `Main frame with smooth scroll-behavior ; ${scrollFunction}() with instant behavior`);
promise_test(() => {
resetScroll(scrollingElement);
setScrollBehavior(styledElement, "smoothBehavior");
assert_equals(scrollingElement.scrollLeft, 0);
assert_equals(scrollingElement.scrollTop, 0);
scrollNode(scrollingElement, scrollFunction, "smooth", elementToRevealLeft, elementToRevealTop);
assert_less_than(scrollingElement.scrollLeft, elementToRevealLeft, "Should not set scrollLeft immediately");
assert_less_than(scrollingElement.scrollTop, elementToRevealTop, "Should not set scrollTop immediately");
return waitForScrollEnd(scrollingElement).then(() => {
assert_equals(scrollingElement.scrollLeft, elementToRevealLeft, "Final value of scrollLeft");
assert_equals(scrollingElement.scrollTop, elementToRevealTop, "Final value of scrollTop");
});
}, `Main frame with smooth scroll-behavior ; ${scrollFunction}() with smooth behavior`);
});
[{scrollAttribute: "scrollLeft", scrollValue: elementToRevealLeft}, {scrollAttribute: "scrollTop", scrollValue: elementToRevealTop}].forEach((attributeTest) => {
promise_test(() => {
resetScroll(scrollingElement);
setScrollBehavior(styledElement, "autoBehavior");
assert_equals(scrollingElement.scrollLeft, 0);
assert_equals(scrollingElement.scrollTop, 0);
var expectedValue = Number(attributeTest.scrollValue);
scrollingElement[attributeTest.scrollAttribute] = expectedValue;
assert_equals( scrollingElement[attributeTest.scrollAttribute], expectedValue, "Should set scroll attribute immediately");
return new Promise((resolve) => { resolve(); });
}, `Set ${attributeTest.scrollAttribute} to frame with auto scroll-behavior`);
promise_test(() => {
resetScroll(scrollingElement);
setScrollBehavior(styledElement, "smoothBehavior");
assert_equals(scrollingElement.scrollLeft, 0);
assert_equals(scrollingElement.scrollTop, 0);
var expectedValue = Number(attributeTest.scrollValue);
scrollingElement[attributeTest.scrollAttribute] = expectedValue;
assert_less_than(scrollingElement[attributeTest.scrollAttribute], expectedValue, "Shouldn't set scroll attribute immediately");
return waitForScrollEnd(scrollingElement).then(() => {
assert_equals(scrollingElement[attributeTest.scrollAttribute], expectedValue, "Final value of scroll attribute");
});
}, `Set ${attributeTest.scrollAttribute} to frame with smooth scroll-behavior`);
});
promise_test(() => {
resetScroll(scrollingElement);
setScrollBehavior(styledElement, "smoothBehavior");
assert_equals(scrollingElement.scrollLeft, 0);
assert_equals(scrollingElement.scrollTop, 0);
scrollNode(scrollingElement, "scroll", "smooth", elementToRevealLeft, elementToRevealTop);
scrollNode(scrollingElement, "scroll", "smooth", elementToRevealLeft / 2, elementToRevealTop / 2);
return waitForScrollEnd(scrollingElement).then(() => {
assert_equals(scrollingElement.scrollLeft, elementToRevealLeft / 2, "Final value of scrollLeft");
assert_equals(scrollingElement.scrollTop, elementToRevealTop / 2, "Final value of scrollTop");
});
}, "Aborting an ongoing smooth scrolling on the main frame with another smooth scrolling");
promise_test(() => {
resetScroll(scrollingElement);
setScrollBehavior(styledElement, "smoothBehavior");
assert_equals(scrollingElement.scrollLeft, 0);
assert_equals(scrollingElement.scrollTop, 0);
scrollNode(scrollingElement, "scroll", "smooth", elementToRevealLeft, elementToRevealTop);
scrollNode(scrollingElement, "scroll", "instant", 0, 0);
return waitForScrollEnd(scrollingElement).then(() => {
assert_equals(scrollingElement.scrollLeft, 0, "Final value of scrollLeft");
assert_equals(scrollingElement.scrollTop, 0, "Final value of scrollTop");
});
}, "Aborting an ongoing smooth scrolling on the main frame with an instant scrolling");
}));
</script>
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