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Unified Diff: third_party/WebKit/LayoutTests/intersection-observer/containing-block.html

Issue 1672273002: Enforce containing block requirement for IntersectionObserver. (Closed) Base URL: https://chromium.googlesource.com/chromium/src@master
Patch Set: nits Created 4 years, 10 months ago
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Index: third_party/WebKit/LayoutTests/intersection-observer/containing-block.html
diff --git a/third_party/WebKit/LayoutTests/intersection-observer/iframe-no-root.html b/third_party/WebKit/LayoutTests/intersection-observer/containing-block.html
similarity index 50%
copy from third_party/WebKit/LayoutTests/intersection-observer/iframe-no-root.html
copy to third_party/WebKit/LayoutTests/intersection-observer/containing-block.html
index 0685994bc299138ca6690ab413c955ade13973d0..f7db8fb8ee8d9878185571d268a8c5056a4582ad 100644
--- a/third_party/WebKit/LayoutTests/intersection-observer/iframe-no-root.html
+++ b/third_party/WebKit/LayoutTests/intersection-observer/containing-block.html
@@ -1,59 +1,81 @@
<!DOCTYPE html>
<script src="../resources/js-test.js"></script>
<script src="helper-functions.js"></script>
-<div style="width:100%; height:700px;"></div>
-<iframe id="target-iframe" src="../resources/intersection-observer-subframe.html" style="height: 100px; overflow-y: scroll"></iframe>
-<div style="width:100%; height:700px;"></div>
+<style>
+#root {
+ width: 200px;
+ 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>
-description("Simple intersection observer test with no explicit root and target in an iframe.");
-var entries = [];
-var targetIframe = document.getElementById("target-iframe");
+ description("Test that no notifications are generated when root is not in the containing block chain of target.");
+ var root = document.getElementById("root");
+ var target = document.getElementById("target");
+ var entries = [];
-targetIframe.onload = function() {
- var target = targetIframe.contentDocument.getElementById("target");
- var iframeScroller = targetIframe.contentDocument.scrollingElement;
-
- observer_callback = function(changes) {
- for (var i in changes)
- entries.push(changes[i]);
- };
- var observer = new IntersectionObserver(observer_callback, {});
- observer.observe(target);
+ function observer_callback(changes) {
+ changes.forEach(function(e) { entries.push(e) });
+ }
+ new IntersectionObserver(observer_callback, {root: root}).observe(target);
function step0() {
setTimeout(function() {
shouldBeEqualToNumber("entries.length", 0);
- document.scrollingElement.scrollTop = 200;
+ target.style.top = "10px";
requestAnimationFrame(step1);
});
}
function step1() {
setTimeout(function() {
- shouldBeEqualToNumber("entries.length", 0);
- iframeScroller.scrollTop = 250;
+ shouldBeEqualToNumber("entries.length", 1);
+ shouldBeEqualToNumber("entries[0].boundingClientRect.left", 58);
+ shouldBeEqualToNumber("entries[0].boundingClientRect.right", 158);
+ shouldBeEqualToNumber("entries[0].boundingClientRect.top", 18);
+ shouldBeEqualToNumber("entries[0].boundingClientRect.bottom", 118);
+ shouldBeEqualToNumber("entries[0].intersectionRect.left", 58);
+ shouldBeEqualToNumber("entries[0].intersectionRect.right", 158);
+ shouldBeEqualToNumber("entries[0].intersectionRect.top", 18);
+ shouldBeEqualToNumber("entries[0].intersectionRect.bottom", 118);
+ shouldBeEqualToNumber("entries[0].rootBounds.left", 8);
+ shouldBeEqualToNumber("entries[0].rootBounds.right", 193);
+ shouldBeEqualToNumber("entries[0].rootBounds.top", 8);
+ shouldBeEqualToNumber("entries[0].rootBounds.bottom", 208);
+ shouldEvaluateToSameObject("entries[0].target", target);
+ target.style.top = "250px";
requestAnimationFrame(step2);
});
}
function step2() {
setTimeout(function() {
- shouldBeEqualToNumber("entries.length", 1);
- shouldBeEqualToNumber("entries[0].boundingClientRect.left", 18);
- shouldBeEqualToNumber("entries[0].boundingClientRect.right", 118);
- shouldBeEqualToNumber("entries[0].boundingClientRect.top", 468);
- shouldBeEqualToNumber("entries[0].boundingClientRect.bottom", 568);
- shouldBeEqualToNumber("entries[0].intersectionRect.left", 18);
- shouldBeEqualToNumber("entries[0].intersectionRect.right", 118);
- shouldBeEqualToNumber("entries[0].intersectionRect.top", 510);
- shouldBeEqualToNumber("entries[0].intersectionRect.bottom", 568);
- shouldBeEqualToNumber("entries[0].rootBounds.left", 0);
- shouldBeEqualToNumber("entries[0].rootBounds.right", 785);
- shouldBeEqualToNumber("entries[0].rootBounds.top", 0);
- shouldBeEqualToNumber("entries[0].rootBounds.bottom", 600);
- shouldEvaluateToSameObject("entries[0].target", target);
- document.scrollingElement.scrollTop = 100;
+ shouldBeEqualToNumber("entries.length", 2);
+ shouldBeEqualToNumber("entries[1].boundingClientRect.left", 58);
+ shouldBeEqualToNumber("entries[1].boundingClientRect.right", 158);
+ shouldBeEqualToNumber("entries[1].boundingClientRect.top", 258);
+ shouldBeEqualToNumber("entries[1].boundingClientRect.bottom", 358);
+ shouldBeEqualToNumber("entries[1].intersectionRect.left", 0);
+ shouldBeEqualToNumber("entries[1].intersectionRect.right", 0);
+ shouldBeEqualToNumber("entries[1].intersectionRect.top", 0);
+ shouldBeEqualToNumber("entries[1].intersectionRect.bottom", 0);
+ shouldBeEqualToNumber("entries[1].rootBounds.left", 8);
+ shouldBeEqualToNumber("entries[1].rootBounds.right", 193);
+ shouldBeEqualToNumber("entries[1].rootBounds.top", 8);
+ shouldBeEqualToNumber("entries[1].rootBounds.bottom", 208);
+ shouldEvaluateToSameObject("entries[1].target", target);
+ root.style.position = "static";
+ target.style.top = "10px";
requestAnimationFrame(step3);
});
}
@@ -61,24 +83,17 @@ targetIframe.onload = function() {
function step3() {
setTimeout(function() {
shouldBeEqualToNumber("entries.length", 2);
- shouldBeEqualToNumber("entries[1].boundingClientRect.left", 18);
- shouldBeEqualToNumber("entries[1].boundingClientRect.right", 118);
- shouldBeEqualToNumber("entries[1].boundingClientRect.top", 568);
- shouldBeEqualToNumber("entries[1].boundingClientRect.bottom", 668);
- shouldBeEqualToNumber("entries[1].intersectionRect.left", 0);
- shouldBeEqualToNumber("entries[1].intersectionRect.right", 0);
- shouldBeEqualToNumber("entries[1].intersectionRect.top", 0);
- shouldBeEqualToNumber("entries[1].intersectionRect.bottom", 0);
- shouldBeEqualToNumber("entries[1].rootBounds.left", 0);
- shouldBeEqualToNumber("entries[1].rootBounds.right", 785);
- shouldBeEqualToNumber("entries[1].rootBounds.top", 0);
- shouldBeEqualToNumber("entries[1].rootBounds.bottom", 600);
- shouldEvaluateToSameObject("entries[1].target", target);
+ target.style.top = "250px";
+ requestAnimationFrame(step4);
+ });
+ }
+
+ function step4() {
+ setTimeout(function() {
+ shouldBeEqualToNumber("entries.length", 2);
finishJSTest();
- document.scrollingElement.scrollTop = 0;
});
}
step0();
-}
</script>
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