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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="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); });
+
+ ["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>