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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
| commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
| tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /testing/web-platform/tests/intersection-observer/containing-block.html | |
| parent | Initial commit. (diff) | |
| download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip | |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/intersection-observer/containing-block.html')
| -rw-r--r-- | testing/web-platform/tests/intersection-observer/containing-block.html | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/testing/web-platform/tests/intersection-observer/containing-block.html b/testing/web-platform/tests/intersection-observer/containing-block.html new file mode 100644 index 0000000000..f7ce6fa724 --- /dev/null +++ b/testing/web-platform/tests/intersection-observer/containing-block.html @@ -0,0 +1,74 @@ +<!DOCTYPE html> +<meta name="viewport" content="width=device-width,initial-scale=1"> +<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; +} +#root { + width: 170px; + height: 200px; + overflow-y: scroll; +} +#target { + width: 100px; + height: 100px; + background-color: green; + position: absolute; +} +</style> + +<div id="root" style="position: absolute"> + <div id="target" style="left: 50px; top: 250px"></div> +</div> + +<script> +var entries = []; +var root, target; + +runTestCycle(function() { + root = document.getElementById("root"); + assert_true(!!root, "root element exists."); + target = document.getElementById("target"); + assert_true(!!target, "target element exists."); + var observer = new IntersectionObserver(function(changes) { + entries = entries.concat(changes); + }, { root: root }); + observer.observe(target); + entries = entries.concat(observer.takeRecords()); + assert_equals(entries.length, 0, "No initial notifications."); + target.style.top = "10px"; + runTestCycle(test1, "In containing block and intersecting."); +}, "IntersectionObserver should only report intersections if root is a containing block ancestor of target."); + +function test1() { + runTestCycle(test2, "In containing block and not intersecting."); + var rootBounds = contentBounds(root); + checkLastEntry(entries, 0, [58, 158, 18, 118, 58, 158, 18, 118].concat(rootBounds)); + target.style.top = "250px"; +} + +function test2() { + runTestCycle(test3, "Not in containing block and intersecting."); + var rootBounds = contentBounds(root); + checkLastEntry(entries, 1, [58, 158, 258, 358, 0, 0, 0, 0].concat(rootBounds)); + root.style.position = "static"; + target.style.top = "10px"; +} + +function test3() { + runTestCycle(test4, "Not in containing block and not intersecting."); + checkLastEntry(entries, 1); + target.style.top = "250px"; +} + +function test4() { + checkLastEntry(entries, 1); + target.style.top = "0"; +} +</script> |