blob: 1d0f162425d7d6d5f5fbe6195f0cf79dbba2de39 [file] [log] [blame]
<!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 id="target" style="width:100px; height:300px"></div>
<iframe id="target-iframe" src="../resources/intersection-observer-subframe.html" style="width: 300px; height: 100px; overflow-y: scroll"></iframe>
</div>
<div style="width:100%; height:700px;"></div>
<script>
description("Simple intersection observer test with no explicit root and target in an iframe.");
var entries = [];
var root = document.getElementById("root");
var targetIframe = document.getElementById("target-iframe");
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, {"root": document.getElementById("root")});
observer.observe(target);
function step0() {
setTimeout(function() {
shouldBeEqualToNumber("entries.length", 0);
document.scrollingElement.scrollTop = 250;
requestAnimationFrame(step1);
});
}
function step1() {
setTimeout(function() {
shouldBeEqualToNumber("entries.length", 0);
iframeScroller.scrollTop = 200;
requestAnimationFrame(step2);
});
}
function step2() {
setTimeout(function() {
shouldBeEqualToNumber("entries.length", 0);
root.scrollTop = 175;
requestAnimationFrame(step3);
});
}
function step3() {
setTimeout(function() {
shouldBeEqualToNumber("entries.length", 1);
shouldBeEqualToNumber("entries[0].boundingClientRect.left", 18);
shouldBeEqualToNumber("entries[0].boundingClientRect.right", 118);
shouldBeEqualToNumber("entries[0].boundingClientRect.top", 593);
shouldBeEqualToNumber("entries[0].boundingClientRect.bottom", 693);
shouldBeEqualToNumber("entries[0].intersectionRect.left", 18);
shouldBeEqualToNumber("entries[0].intersectionRect.right", 118);
shouldBeEqualToNumber("entries[0].intersectionRect.top", 593);
shouldBeEqualToNumber("entries[0].intersectionRect.bottom", 658);
shouldBeEqualToNumber("entries[0].rootBounds.left", 8);
shouldBeEqualToNumber("entries[0].rootBounds.right", 312);
shouldBeEqualToNumber("entries[0].rootBounds.top", 458);
shouldBeEqualToNumber("entries[0].rootBounds.bottom", 658);
shouldEvaluateToSameObject("entries[0].target", target);
document.scrollingElement.scrollTop = 100;
requestAnimationFrame(step4);
});
}
function step4() {
setTimeout(function() {
shouldBeEqualToNumber("entries.length", 1);
root.scrollTop = 100;
requestAnimationFrame(step5);
});
}
function step5() {
setTimeout(function() {
shouldBeEqualToNumber("entries.length", 2);
shouldBeEqualToNumber("entries[1].boundingClientRect.left", 18);
shouldBeEqualToNumber("entries[1].boundingClientRect.right", 118);
shouldBeEqualToNumber("entries[1].boundingClientRect.top", 818);
shouldBeEqualToNumber("entries[1].boundingClientRect.bottom", 918);
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", 312);
shouldBeEqualToNumber("entries[1].rootBounds.top", 608);
shouldBeEqualToNumber("entries[1].rootBounds.bottom", 808);
shouldEvaluateToSameObject("entries[1].target", target);
finishJSTest();
document.scrollingElement.scrollTop = 0;
});
}
step0();
}
</script>