| Index: third_party/WebKit/LayoutTests/intersection-observer/disconnect.html
|
| diff --git a/third_party/WebKit/LayoutTests/intersection-observer/disconnect.html b/third_party/WebKit/LayoutTests/intersection-observer/disconnect.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..0c64a961249234e56caa2eac1675ebd8e85a7457
|
| --- /dev/null
|
| +++ b/third_party/WebKit/LayoutTests/intersection-observer/disconnect.html
|
| @@ -0,0 +1,56 @@
|
| +<!DOCTYPE html>
|
| +<script src="../resources/testharness.js"></script>
|
| +<script src="../resources/testharnessreport.js"></script>
|
| +<script src="./resources/intersection-observer-test-utils.js"></script>
|
| +
|
| +<style>
|
| +pre, #log {
|
| + position: absolute;
|
| + top: 0;
|
| + left: 200px;
|
| +}
|
| +.spacer {
|
| + height: 700px;
|
| +}
|
| +#target {
|
| + width: 100px;
|
| + height: 100px;
|
| + background-color: green;
|
| +}
|
| +</style>
|
| +
|
| +<div class="spacer"></div>
|
| +<div id="target"></div>
|
| +<div class="spacer"></div>
|
| +
|
| +<script>
|
| +var entries = [];
|
| +var observer;
|
| +var target;
|
| +
|
| +runTestCycle(function() {
|
| + assert_equals(window.innerWidth, 800, "Window must be 800 pixels wide.");
|
| + assert_equals(window.innerHeight, 600, "Window must be 600 pixels high.");
|
| +
|
| + target = document.getElementById("target");
|
| + assert_true(!!target, "target exists");
|
| + observer = new IntersectionObserver(function(changes) {
|
| + entries = entries.concat(changes)
|
| + });
|
| + observer.observe(target);
|
| + entries = entries.concat(observer.takeRecords());
|
| + assert_equals(entries.length, 0, "No initial notifications.");
|
| + runTestCycle(step0, "First rAF.");
|
| +}, "IntersectionObserver should not deliver pending notifications after disconnect().");
|
| +
|
| +function step0() {
|
| + runTestCycle(step1, "observer.disconnect()");
|
| + document.scrollingElement.scrollTop = 300;
|
| + observer.disconnect();
|
| + assert_equals(entries.length, 1, "Initial notification.");
|
| +}
|
| +
|
| +function step1() {
|
| + assert_equals(entries.length, 1, "No new notifications.");
|
| +}
|
| +</script>
|
|
|
Chromium Code Reviews
Issue 2684733002:
IntersectionObserver: discard notifications upon disconnect(). (Closed)
