| Index: third_party/WebKit/LayoutTests/http/tests/intersection-observer/resources/nested-cross-origin-subframe.html
|
| diff --git a/third_party/WebKit/LayoutTests/http/tests/intersection-observer/resources/nested-cross-origin-subframe.html b/third_party/WebKit/LayoutTests/http/tests/intersection-observer/resources/nested-cross-origin-subframe.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..0bc615a41126d4c55d7f13353c77bbfb140802ed
|
| --- /dev/null
|
| +++ b/third_party/WebKit/LayoutTests/http/tests/intersection-observer/resources/nested-cross-origin-subframe.html
|
| @@ -0,0 +1,132 @@
|
| +<!DOCTYPE html>
|
| +<div style="height: 200px; width: 100px;"></div>
|
| +<div id="target" style="background-color: green; width:100px; height:100px"></div>
|
| +<div style="height: 200px; width: 100px;"></div>
|
| +
|
| +<script>
|
| +var port;
|
| +var entries = [];
|
| +var target = document.getElementById('target');
|
| +var scroller = document.scrollingElement;
|
| +var nextStep;
|
| +var waiting_for_ack = false;
|
| +
|
| +function clientRectToJson(rect) {
|
| + if (!rect)
|
| + return "null";
|
| + return {
|
| + top: rect.top,
|
| + right: rect.right,
|
| + bottom: rect.bottom,
|
| + left: rect.left
|
| + };
|
| +}
|
| +
|
| +function entryToJson(entry) {
|
| + return {
|
| + boundingClientRect: clientRectToJson(entry.boundingClientRect),
|
| + intersectionRect: clientRectToJson(entry.intersectionRect),
|
| + rootBounds: clientRectToJson(entry.rootBounds),
|
| + target: entry.target.id
|
| + };
|
| +}
|
| +
|
| +function coordinatesToClientRectJson(top, right, bottom, left) {
|
| + return {
|
| + top: top,
|
| + right: right,
|
| + bottom: bottom,
|
| + left: left
|
| + };
|
| +}
|
| +
|
| +// Use a rootMargin here, and verify it does NOT get applied for the cross-origin case.
|
| +var observer = new IntersectionObserver(function(changes) {
|
| + entries = entries.concat(changes)
|
| +}, { rootMargin: "7px" });
|
| +observer.observe(target);
|
| +
|
| +function step0() {
|
| + entries = entries.concat(observer.takeRecords());
|
| + nextStep = step1;
|
| + var expected = [{
|
| + boundingClientRect: coordinatesToClientRectJson(8, 208, 108, 308),
|
| + intersectionRect: coordinatesToClientRectJson(0, 0, 0, 0),
|
| + rootBounds: "null",
|
| + target: target.id
|
| + }];
|
| + port.postMessage({
|
| + actual: entries.map(entryToJson),
|
| + expected: expected,
|
| + description: "First rAF"
|
| + }, "*");
|
| + entries = [];
|
| + port.postMessage({scrollTo: 200}, "*");
|
| +}
|
| +
|
| +function step1() {
|
| + entries = entries.concat(observer.takeRecords());
|
| + port.postMessage({
|
| + actual: entries.map(entryToJson),
|
| + expected: [],
|
| + description: "topDocument.scrollingElement.scrollTop = 200"
|
| + }, "*");
|
| + entries = [];
|
| + scroller.scrollTop = 250;
|
| + nextStep = step2;
|
| + port.postMessage({}, "*");
|
| +}
|
| +
|
| +function step2() {
|
| + entries = entries.concat(observer.takeRecords());
|
| + var expected = [{
|
| + boundingClientRect: coordinatesToClientRectJson(-42, 108, 58, 8),
|
| + intersectionRect: coordinatesToClientRectJson(0, 108, 58, 8),
|
| + rootBounds: "null",
|
| + target: target.id
|
| + }];
|
| + port.postMessage({
|
| + actual: entries.map(entryToJson),
|
| + expected: expected,
|
| + description: "iframeDocument.scrollingElement.scrollTop = 250"
|
| + }, "*");
|
| + entries = [];
|
| + nextStep = step3;
|
| + port.postMessage({scrollTo: 100}, "*");
|
| +}
|
| +
|
| +function step3() {
|
| + entries = entries.concat(observer.takeRecords());
|
| + var expected = [{
|
| + boundingClientRect: coordinatesToClientRectJson(-42, 108, 58, 8),
|
| + intersectionRect: coordinatesToClientRectJson(0, 0, 0, 0),
|
| + rootBounds: "null",
|
| + target: target.id
|
| + }];
|
| + port.postMessage({
|
| + actual: entries.map(entryToJson),
|
| + expected: expected,
|
| + description: "topDocument.scrollingElement.scrollTop = 100"
|
| + }, "*");
|
| + port.postMessage({DONE: 1}, "*");
|
| +}
|
| +
|
| +function handleMessage(event)
|
| +{
|
| + port = event.source;
|
| + // The ACKs serve the purpose to create an extra full postMessage round trip
|
| + // delay before taking IntersectionObserver records. This accounts for a
|
| + // race condition that exists when this is an out-of-process iframe: the
|
| + // postMessage can trigger takeRecords before new intersections have been
|
| + // calculated. requestAnimationFrame() is not available here because of
|
| + // frame throttling in the same-process scenario.
|
| + if (event.data.hasOwnProperty('ACK')) {
|
| + nextStep();
|
| + } else {
|
| + port.postMessage({ ACK: 1 }, "*");
|
| + }
|
| +}
|
| +
|
| +nextStep = step0;
|
| +window.addEventListener("message", handleMessage);
|
| +</script>
|
|
|
Chromium Code Reviews
Issue 2860903003:
Propagate viewport intersection across OOPIFs at the correct time (Closed)
