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Unified Diff: third_party/WebKit/LayoutTests/intersection-observer/same-document-root.html

Issue 1449623002: IntersectionObserver: second cut. (Closed) Base URL: https://chromium.googlesource.com/chromium/src@master
Patch Set: sigbjornf nits Created 5 years ago
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« no previous file with comments | « third_party/WebKit/LayoutTests/intersection-observer/same-document-no-root-expected.txt ('k') | third_party/WebKit/LayoutTests/intersection-observer/same-document-root-expected.txt » ('j') | third_party/WebKit/Source/core/dom/Document.cpp » ('J')
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Index: third_party/WebKit/LayoutTests/intersection-observer/same-document-root.html
diff --git a/third_party/WebKit/LayoutTests/intersection-observer/same-document-root.html b/third_party/WebKit/LayoutTests/intersection-observer/same-document-root.html
new file mode 100644
index 0000000000000000000000000000000000000000..fb4a857b04abd49a30b30c70536730d341c639fa
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/intersection-observer/same-document-root.html
@@ -0,0 +1,113 @@
+<!DOCTYPE html>
+<script src="../resources/js-test.js"></script>
+<script src="helper-functions.js"></script>
+<div style="width:100%; height:700px;"></div>
+<div id="root" style="display: inline-block; overflow-y: scroll; height: 200px;">
+ <div style="width:100px; height: 300px;"></div>
+ <div id="target" style="background-color: green; width:100px; height:100px"></div>
+</div>
+<div style="width:100%;height:700px;"></div>
+
+<script>
+ description("Simple intersection observer test with explicit root and target in the same document.");
+ var target = document.getElementById("target");
+ var root = document.getElementById("root");
+ var entries = [];
+
+ observer_callback = function(changes) {
+ for (var i in changes)
+ entries.push(changes[i]);
+ };
+ var observer = new IntersectionObserver(observer_callback, {"root": document.getElementById("root")});
+ observer.observe(target);
+
+ // Test that notifications are not generated when the target is overflow clipped by the root.
+ function step0() {
+ setTimeout(function() {
+ shouldBeEqualToNumber("entries.length", 0);
+ document.scrollingElement.scrollTop = 600;
+ requestAnimationFrame(step1);
+ });
+ }
+
+ function step1() {
+ setTimeout(function() {
+ shouldBeEqualToNumber("entries.length", 0);
+ root.scrollTop = 150;
+ requestAnimationFrame(step2);
+ });
+ }
+
+ function step2() {
+ setTimeout(function() {
+ shouldBeEqualToNumber("entries.length", 1);
+ shouldBeEqualToNumber("entries[0].boundingClientRect.left", 8);
+ shouldBeEqualToNumber("entries[0].boundingClientRect.right", 108);
+ shouldBeEqualToNumber("entries[0].boundingClientRect.top", 258);
+ shouldBeEqualToNumber("entries[0].boundingClientRect.bottom", 358);
+ shouldBeEqualToNumber("entries[0].intersectionRect.left", 8);
+ shouldBeEqualToNumber("entries[0].intersectionRect.right", 108);
+ shouldBeEqualToNumber("entries[0].intersectionRect.top", 258);
+ shouldBeEqualToNumber("entries[0].intersectionRect.bottom", 308);
+ shouldBeEqualToNumber("entries[0].rootBounds.left", 8);
+ shouldBeEqualToNumber("entries[0].rootBounds.right", 108);
+ shouldBeEqualToNumber("entries[0].rootBounds.top", 108);
+ shouldBeEqualToNumber("entries[0].rootBounds.bottom", 308);
+ shouldEvaluateToSameObject("entries[0].target", target);
+ document.scrollingElement.scrollTop = 0;
+ requestAnimationFrame(step3);
+ });
+ }
+
+ function step3() {
+ setTimeout(function() {
+ shouldBeEqualToNumber("entries.length", 1);
+ root.scrollTop = 0;
+ requestAnimationFrame(step4);
+ });
+ }
+
+ function step4() {
+ setTimeout(function() {
+ shouldBeEqualToNumber("entries.length", 2);
+ shouldBeEqualToNumber("entries[1].boundingClientRect.left", 8);
+ shouldBeEqualToNumber("entries[1].boundingClientRect.right", 108);
+ shouldBeEqualToNumber("entries[1].boundingClientRect.top", 1008);
+ shouldBeEqualToNumber("entries[1].boundingClientRect.bottom", 1108);
+ 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", 108);
+ shouldBeEqualToNumber("entries[1].rootBounds.top", 708);
+ shouldBeEqualToNumber("entries[1].rootBounds.bottom", 908);
+ shouldEvaluateToSameObject("entries[1].target", target);
+ root.scrollTop = 150;
+ requestAnimationFrame(step5);
+ });
+ }
+
+ // This tests that notifications are generated even when the root element is off screen.
+ function step5() {
+ setTimeout(function() {
+ shouldBeEqualToNumber("entries.length", 3);
+ shouldBeEqualToNumber("entries[2].boundingClientRect.left", 8);
+ shouldBeEqualToNumber("entries[2].boundingClientRect.right", 108);
+ shouldBeEqualToNumber("entries[2].boundingClientRect.top", 858);
+ shouldBeEqualToNumber("entries[2].boundingClientRect.bottom", 958);
+ shouldBeEqualToNumber("entries[2].intersectionRect.left", 8);
+ shouldBeEqualToNumber("entries[2].intersectionRect.right", 108);
+ shouldBeEqualToNumber("entries[2].intersectionRect.top", 858);
+ shouldBeEqualToNumber("entries[2].intersectionRect.bottom", 908);
+ shouldBeEqualToNumber("entries[2].rootBounds.left", 8);
+ shouldBeEqualToNumber("entries[2].rootBounds.right", 108);
+ shouldBeEqualToNumber("entries[2].rootBounds.top", 708);
+ shouldBeEqualToNumber("entries[2].rootBounds.bottom", 908);
+ shouldEvaluateToSameObject("entries[2].target", target);
+ finishTest();
+ });
+ }
+
+ requestAnimationFrame(step0);
+</script>
« no previous file with comments | « third_party/WebKit/LayoutTests/intersection-observer/same-document-no-root-expected.txt ('k') | third_party/WebKit/LayoutTests/intersection-observer/same-document-root-expected.txt » ('j') | third_party/WebKit/Source/core/dom/Document.cpp » ('J')

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