113 lines
4.1 KiB
HTML
113 lines
4.1 KiB
HTML
<!DOCTYPE html>
|
|
<title>CSSOM View - scrollIntoView</title>
|
|
<meta charset="utf-8">
|
|
<meta name="viewport" content="initial-scale=1">
|
|
<link rel="author" title="Chris Wu" href="mailto:pwx.frontend@gmail.com">
|
|
<link rel="help" href="https://drafts.csswg.org/cssom-view/#dom-element-scrollintoview">
|
|
<link rel="help" href="https://webidl.spec.whatwg.org/#es-operations">
|
|
<link rel="help" href="https://webidl.spec.whatwg.org/#es-overloads">
|
|
<meta name="flags" content="dom">
|
|
<script src="/resources/testharness.js"></script>
|
|
<script src="/resources/testharnessreport.js"></script>
|
|
<style>
|
|
body.running { margin: 0; padding: 4000px; overflow: hidden }
|
|
body.running #testDiv {
|
|
width: 200px;
|
|
height: 200px;
|
|
background-color: lightgreen;
|
|
}
|
|
</style>
|
|
<body class=running>
|
|
<div id=testDiv></div>
|
|
<div id="log"></div>
|
|
<script>
|
|
var testDiv = document.getElementById('testDiv');
|
|
|
|
var expectedXLeft = 4000;
|
|
var expectedXRight = 4000 - window.innerWidth + testDiv.clientWidth;
|
|
var expectedXCenter = 4000 - (window.innerWidth / 2) + (testDiv.clientWidth / 2);
|
|
|
|
var expectedYTop = 4000;
|
|
var expectedYBottom = 4000 - window.innerHeight + testDiv.clientHeight;
|
|
var expectedYCenter = 4000 - (window.innerHeight / 2) + (testDiv.clientHeight / 2);
|
|
|
|
[
|
|
["omitted argument", "nearest", expectedYTop],
|
|
[true, "nearest", expectedYTop],
|
|
[false, "nearest", expectedYBottom],
|
|
[undefined, "nearest", expectedYTop],
|
|
[null, "nearest", expectedYTop],
|
|
[{}, "nearest", expectedYTop],
|
|
[{block: "center", inline: "center"}, expectedXCenter, expectedYCenter],
|
|
[{block: "start", inline: "start"}, expectedXLeft, expectedYTop],
|
|
[{block: "end", inline: "end"}, expectedXRight, expectedYBottom],
|
|
[{block: "nearest", inline: "nearest"}, "nearest", "nearest"],
|
|
].forEach(([input, expectedX, expectedY]) => {
|
|
test(() => {
|
|
window.scrollTo(0, 0);
|
|
testScrollIntoView(input);
|
|
var x = (expectedX === "nearest") ? expectedXRight : expectedX;
|
|
var y = (expectedY === "nearest") ? expectedYBottom : expectedY;
|
|
assert_approx_equals(window.scrollX, x, 0.5, 'scrollX');
|
|
assert_approx_equals(window.scrollY, y, 0.5, 'scrollY');
|
|
}, `scrollIntoView(${format_input(input)}) starting at left,top`);
|
|
|
|
test(() => {
|
|
window.scrollTo(0, 12000);
|
|
testScrollIntoView(input);
|
|
var x = (expectedX === "nearest") ? expectedXRight : expectedX;
|
|
var y = (expectedY === "nearest") ? expectedYTop : expectedY;
|
|
assert_approx_equals(window.scrollX, x, 0.5, 'scrollX');
|
|
assert_approx_equals(window.scrollY, y, 0.5, 'scrollY');
|
|
}, `scrollIntoView(${format_input(input)}) starting at left,bottom`);
|
|
|
|
test(() => {
|
|
window.scrollTo(12000, 0);
|
|
testScrollIntoView(input);
|
|
var x = (expectedX === "nearest") ? expectedXLeft : expectedX;
|
|
var y = (expectedY === "nearest") ? expectedYBottom : expectedY;
|
|
assert_approx_equals(window.scrollX, x, 0.5, 'scrollX');
|
|
assert_approx_equals(window.scrollY, y, 0.5, 'scrollY');
|
|
}, `scrollIntoView(${format_input(input)}) starting at right,top`);
|
|
|
|
test(() => {
|
|
window.scrollTo(12000, 12000);
|
|
testScrollIntoView(input);
|
|
var x = (expectedX === "nearest") ? expectedXLeft : expectedX;
|
|
var y = (expectedY === "nearest") ? expectedYTop : expectedY;
|
|
assert_approx_equals(window.scrollX, x, 0.5, 'scrollX');
|
|
assert_approx_equals(window.scrollY, y, 0.5, 'scrollY');
|
|
}, `scrollIntoView(${format_input(input)}) starting at right,bottom`);
|
|
});
|
|
|
|
function testScrollIntoView(input) {
|
|
if (input === "omitted argument") {
|
|
testDiv.scrollIntoView();
|
|
} else {
|
|
testDiv.scrollIntoView(input);
|
|
}
|
|
}
|
|
|
|
// This formats dict as a string suitable as test name.
|
|
// format_value() is provided by testharness.js,
|
|
// which also preserves sign for -0.
|
|
function format_dict(dict) {
|
|
const props = [];
|
|
for (let prop in dict) {
|
|
props.push(`${prop}: ${format_value(dict[prop])}`);
|
|
}
|
|
return `{${props.join(', ')}}`;
|
|
}
|
|
|
|
function format_input(input) {
|
|
if (input === "omitted argument") {
|
|
return "";
|
|
} else if (input === null || typeof input !== "object") {
|
|
return format_value(input);
|
|
}
|
|
return format_dict(input);
|
|
}
|
|
|
|
document.body.classList.remove('running');
|
|
window.scrollTo(0, 0);
|
|
</script>
|