107 lines
3.3 KiB
HTML
107 lines
3.3 KiB
HTML
<!DOCTYPE html>
|
|
<title>CSSOM View - scrollIntoView considers horizontal-tb writing mode</title>
|
|
<meta charset="utf-8">
|
|
<meta name="viewport" content="width=device-width,initial-scale=1">
|
|
<link rel="author" title="Cathie Chen" href="mailto:cathiechen@igalia.com">
|
|
<link rel="help" href="https://drafts.csswg.org/cssom-view/#dom-element-scrollintoview">
|
|
<script src="/resources/testharness.js"></script>
|
|
<script src="/resources/testharnessreport.js"></script>
|
|
|
|
<style>
|
|
.box {
|
|
float: left;
|
|
width: 200px;
|
|
height: 200px;
|
|
}
|
|
#scroller {
|
|
overflow: scroll;
|
|
width: 300px;
|
|
height: 300px;
|
|
}
|
|
#container{
|
|
width: 600px;
|
|
height: 600px;
|
|
}
|
|
#target {
|
|
background-color: #ff0;
|
|
}
|
|
</style>
|
|
<body>
|
|
<div id="scroller">
|
|
<div id="container">
|
|
<!-- ROW-1 -->
|
|
<div class="row">
|
|
<div class="box"></div>
|
|
<div class="box"></div>
|
|
<div class="box"></div>
|
|
</div>
|
|
|
|
<!-- ROW-2 -->
|
|
<div class="row">
|
|
<div class="box"></div>
|
|
<div class="box" id="target"></div>
|
|
<div class="box"></div>
|
|
</div>
|
|
|
|
<!-- ROW-3 -->
|
|
<div class="row">
|
|
<div class="box"></div>
|
|
<div class="box"></div>
|
|
<div class="box"></div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
<script>
|
|
// In horizontal-tb mode, X corresponds to the inline axis and is oriented
|
|
// rightward. Y corresponds to the block axis and is oriented downward.
|
|
// So the beginning edges are the top and left edges and the ending
|
|
// edges are the bottom and right edges.
|
|
|
|
// This assumes that the horizontal scrollbar is on the bottom side and
|
|
// the vertical scrollbar is on the right side.
|
|
|
|
var target = document.getElementById("target");
|
|
var scroller = document.getElementById("scroller");
|
|
var scrollbar_width = scroller.offsetWidth - scroller.clientWidth;
|
|
|
|
var scroller_width = scroller.offsetWidth;
|
|
var scroller_height = scroller.offsetHeight;
|
|
var box_width = target.offsetWidth;
|
|
var box_height = target.offsetHeight;
|
|
|
|
var expectedX = {
|
|
inlineStart: box_width,
|
|
inlineCenter: (3*box_width - scroller_width)/2 + scrollbar_width/2,
|
|
inlineEnd: 2*box_width - scroller_width + scrollbar_width,
|
|
};
|
|
|
|
var expectedY = {
|
|
blockStart: box_height,
|
|
blockCenter: (3*box_height - scroller_height)/2 + scrollbar_width/2,
|
|
blockEnd: 2*box_height - scroller_height + scrollbar_width,
|
|
};
|
|
|
|
[
|
|
[{block: "start", inline: "start"}, expectedX.inlineStart, expectedY.blockStart],
|
|
[{block: "start", inline: "center"}, expectedX.inlineCenter, expectedY.blockStart],
|
|
[{block: "start", inline: "end"}, expectedX.inlineEnd, expectedY.blockStart],
|
|
[{block: "center", inline: "start"}, expectedX.inlineStart, expectedY.blockCenter],
|
|
[{block: "center", inline: "center"}, expectedX.inlineCenter, expectedY.blockCenter],
|
|
[{block: "center", inline: "end"}, expectedX.inlineEnd, expectedY.blockCenter],
|
|
[{block: "end", inline: "start"}, expectedX.inlineStart, expectedY.blockEnd],
|
|
[{block: "end", inline: "center"}, expectedX.inlineCenter, expectedY.blockEnd],
|
|
[{block: "end", inline: "end"}, expectedX.inlineEnd, expectedY.blockEnd],
|
|
].forEach(([input, expectedX, expectedY]) => {
|
|
test(() => {
|
|
scroller.scrollTo(0, 0);
|
|
target.scrollIntoView(input);
|
|
assert_approx_equals(scroller.scrollLeft, expectedX, 0.5, "scrollX");
|
|
assert_approx_equals(scroller.scrollTop, expectedY, 0.5, "scrollY");
|
|
}, `scrollIntoView(${JSON.stringify(input)})`);
|
|
})
|
|
|
|
</script>
|
|
|
|
</body>
|
|
</html>
|