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Unified Diff: third_party/WebKit/LayoutTests/external/wpt/cssom-view/scrollIntoView-smooth.html

Issue 2936283003: Update CSSOM SmoothScroll Web Platform Test (Closed)
Patch Set: Update the tests and idl Created 3 years, 6 months ago
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Index: third_party/WebKit/LayoutTests/external/wpt/cssom-view/scrollIntoView-smooth.html
diff --git a/third_party/WebKit/LayoutTests/external/wpt/cssom-view/scrollIntoView-smooth.html b/third_party/WebKit/LayoutTests/external/wpt/cssom-view/scrollIntoView-smooth.html
new file mode 100644
index 0000000000000000000000000000000000000000..7a8b6a78c1474e9d185cfcd28237d94eeebb55a5
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/external/wpt/cssom-view/scrollIntoView-smooth.html
@@ -0,0 +1,101 @@
+<!DOCTYPE HTML>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<title>Check End Position of smooth scrollIntoView</title>
+<div id="container" style="height: 2500px; width: 2500px;">
+ <div id="content" style="height: 500px; width: 500px;margin-left: 1000px; margin-right: 1000px; margin-top: 1000px;margin-bottom: 1000px;background-color: red">
+ </div>
+ <div id="shadow"></div>
+</div>
+<script>
+var content_height = 500;
+var content_width = 500;
+var window_height = document.documentElement.clientHeight;
+var window_width = document.documentElement.clientWidth;
+var content = document.getElementById("content");
+add_completion_callback(() => document.getElementById("container").remove());
+
+function waitForScrollEnd() {
+ var last_changed_frame = 0;
+ var last_x = window.scrollX;
+ var last_y = window.scrollY;
+ return new Promise((resolve, reject) => {
+ function tick(frames) {
+ // We requestAnimationFrame either for 500 frames or until 20 frames with
+ // no change have been observed.
+ if (frames >= 500 || frames - last_changed_frame > 20) {
+ resolve();
+ } else {
+ if (window.scrollX != last_x || window.scrollY != last_y) {
+ last_changed_frame = frames;
+ last_x = window.scrollX;
+ last_y = window.scrollY;
+ }
+ requestAnimationFrame(tick.bind(null, frames + 1));
+ }
+ }
+ tick(0);
+ });
+}
+
+// When testing manually, we need an additional frame at beginning
+// to trigger the effect.
+requestAnimationFrame(() => {
+promise_test(t => {
+ window.scrollTo(0, 0);
+ var expected_x = content.offsetLeft + content_width - window_width;
+ var expected_y = content.offsetTop + content_height - window_height;
+ assert_not_equals(window.scrollX, expected_x);
+ assert_not_equals(window.scrollY, expected_y);
+ content.scrollIntoView({behavior: "smooth", block: "nearest", inlinePosition:
+"nearest"});
+ return waitForScrollEnd().then(() => {
+ assert_approx_equals(window.scrollX, expected_x, 1);
+ assert_approx_equals(window.scrollY, expected_y, 1);
+ });
+}, "Smooth scrollIntoView should scroll the element to the 'nearest' position");
+
+promise_test(t => {
+ window.scrollTo(0, 0);
+ var expected_x = content.offsetLeft;
+ var expected_y = content.offsetTop;
+ assert_not_equals(window.scrollX, expected_x);
+ assert_not_equals(window.scrollY, expected_y);
+ content.scrollIntoView({behavior: "smooth", block: "start", inlinePosition:
+"start"});
+ return waitForScrollEnd().then(() => {
+ assert_approx_equals(window.scrollX, expected_x, 1);
+ assert_approx_equals(window.scrollY, expected_y, 1);
+ });
+}, "Smooth scrollIntoView should scroll the element to the 'start' position");
+
+promise_test(t => {
+ window.scrollTo(0, 0);
+ var expected_x = content.offsetLeft + (content_width - window_width) / 2;
+ var expected_y = content.offsetTop + (content_height - window_height) / 2;
+ assert_not_equals(window.scrollX, expected_x);
+ assert_not_equals(window.scrollY, expected_y);
+ content.scrollIntoView({behavior: "smooth", block: "center", inlinePosition:
+"center"});
+ return waitForScrollEnd().then(() => {
+ assert_approx_equals(window.scrollX, expected_x, 1);
+ assert_approx_equals(window.scrollY, expected_y, 1);
+ });
+}, "Smooth scrollIntoView should scroll the element to the 'center' position");
+
+promise_test(t => {
+ window.scrollTo(0, 0);
+ var expected_x = content.offsetLeft + content_width - window_width;
+ var expected_y = content.offsetTop + content_height - window_height;
+ assert_not_equals(window.scrollX, expected_x);
+ assert_not_equals(window.scrollY, expected_y);
+ content.scrollIntoView({behavior: "smooth", block: "end", inlinePosition:
+"end"});
+ return waitForScrollEnd().then(() => {
+ assert_approx_equals(window.scrollX, expected_x, 1);
+ assert_approx_equals(window.scrollY, expected_y, 1);
+ });
+}, "Smooth scrollIntoView should scroll the element to the 'end' position");
+
+});
+</script>

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