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table-cell-width-calculation.html
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<!doctype html>
<html>
<head>
<title>The table cell width calculation quirk</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style> iframe { width:200px; height:20px; } </style>
</head>
<body>
<div id=log></div>
<iframe id=quirks></iframe>
<iframe id=almost></iframe>
<iframe id=standards></iframe>
<script>
setup({explicit_done:true});
var png = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAACklEQVR4nGMAAQAABQABDQottAAAAABJRU5ErkJggg==";
var preload = new Image();
preload.src = png;
onload = function() {
var html = "<style id=style></style><table><tr><td id=test></table><table><tr><td id=ref></table><table><tr><td id=s_ref></table>";
var a_doctype = '<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">';
var s_doctype = '<!DOCTYPE HTML>';
var q = document.getElementById('quirks').contentWindow;
var a = document.getElementById('almost').contentWindow;
var s = document.getElementById('standards').contentWindow;
q.document.open();
q.document.write(html);
q.document.close();
a.document.open();
a.document.write(a_doctype + html);
a.document.close();
s.document.open();
s.document.write(s_doctype + html);
s.document.close();
[q, a, s].forEach(function(win) {
['style', 'test', 'ref', 's_ref'].forEach(function(id) {
Object.getPrototypeOf(win).__defineGetter__(id, function() { return win.document.getElementById(id); });
});
});
q.title = 'quirks mode';
a.title = 'almost standards mode';
s.title = 'standards mode';
var tests = [
{desc:"baseline",
style:'table { width:8px }', // cell content width should be 2px (2px cell-spacing, 1px padding)
test:'<img src="{png}">',
ref:'<img src="{png}">',
s_ref:'<img src="{png}">'},
{desc:"basic",
style:'table { width:8px }',
test:'<img src="{png}"><img src="{png}"><img src="{png}">',
ref:'<nobr><img src="{png}"><img src="{png}"><img src="{png}"></nobr>',
s_ref:'<nobr><img src="{png}"><img src="{png}"><br><img src="{png}"></nobr>'},
{desc:"inline-block",
style:'table { width:8px } img { display:inline-block }',
test:'<img src="{png}"><img src="{png}"><img src="{png}">',
ref:'<nobr><img src="{png}"><img src="{png}"><img src="{png}"></nobr>',
s_ref:'<nobr><img src="{png}"><img src="{png}"><br><img src="{png}"></nobr>'},
{desc:"img in span",
style:'table { width:8px }',
test:'<span><img src="{png}"><img src="{png}"><img src="{png}"></span>',
ref:'<nobr><img src="{png}"><img src="{png}"><img src="{png}"></nobr>',
s_ref:'<nobr><img src="{png}"><img src="{png}"><br><img src="{png}"></nobr>'},
{desc:"the don't-wrap rule is only for the purpose of calculating the width of the cell",
style:'table { width:8px }',
test:'<img src="{png}"><wbr><img src="{png}"><img src="{png}"><img src="{png}">',
ref:'<nobr><img src="{png}"><img src="{png}"><img src="{png}"><br><img src="{png}"></nobr>',
s_ref:'<nobr><img src="{png}"><img src="{png}"><br><img src="{png}"><img src="{png}"></nobr>'},
{desc:"the quirk only applies when the cell is the containing block",
style:'table { width:8px }',
test:'<div><img src="{png}"><img src="{png}"><img src="{png}"></div>',
ref:'<nobr><img src="{png}"><img src="{png}"><br><img src="{png}"><img src="{png}"></nobr>',
s_ref:'<nobr><img src="{png}"><img src="{png}"><br><img src="{png}"><img src="{png}"></nobr>'},
{desc:"the quirk shouldn't apply for generated content",
style:'table { width:8px } #test::before { content:url("{png}") url("{png}") url("{png}") }',
test:'',
ref:'<nobr><img src="{png}"><img src="{png}"><br><img src="{png}"></nobr>',
s_ref:'<nobr><img src="{png}"><img src="{png}"><br><img src="{png}"></nobr>'},
{desc:"the quirk shouldn't apply for <input>",
style:'table { width:8px }',
test:'<input type=image src="{png}"><input type=image src="{png}"><input type=image src="{png}">',
ref:'<nobr><img src="{png}"><img src="{png}"><br><img src="{png}"></nobr>',
s_ref:'<nobr><img src="{png}"><img src="{png}"><br><img src="{png}"></nobr>'},
{desc:"the quirk shouldn't apply for <object>",
style:'table { width:8px }',
test:'<object data="{png}"></object><object data="{png}"></object><object data="{png}"></object>',
ref:'<nobr><img src="{png}"><img src="{png}"><br><img src="{png}"></nobr>',
s_ref:'<nobr><img src="{png}"><img src="{png}"><br><img src="{png}"></nobr>'},
{desc:"the quirk shouldn't apply for <embed>",
style:'table { width:8px }',
test:'<embed src="{png}"><embed src="{png}"><embed src="{png}">',
ref:'<nobr><img src="{png}"><img src="{png}"><br><img src="{png}"></nobr>',
s_ref:'<nobr><img src="{png}"><img src="{png}"><br><img src="{png}"></nobr>'},
{desc:"the quirk shouldn't apply for <video poster>",
style:'table { width:8px }',
test:'<video poster="{png}"></video><video poster="{png}"></video><video poster="{png}"></video>',
ref:'<nobr><img src="{png}"><img src="{png}"><br><img src="{png}"></nobr>',
s_ref:'<nobr><img src="{png}"><img src="{png}"><br><img src="{png}"></nobr>'},
{desc:"non-auto width on cell",
style:'td { width:2px }',
test:'<img src="{png}"><img src="{png}"><img src="{png}">',
ref:'<nobr><img src="{png}"><img src="{png}"><br><img src="{png}"></nobr>',
s_ref:'<nobr><img src="{png}"><img src="{png}"><br><img src="{png}"></nobr>'},
{desc:"zero width on cell, specified with on table",
style:'table { width:8px } td { width:0 }',
test:'<img src="{png}"><img src="{png}"><img src="{png}">',
ref:'<nobr><img src="{png}"><img src="{png}"><br><img src="{png}"></nobr>',
s_ref:'<nobr><img src="{png}"><img src="{png}"><br><img src="{png}"></nobr>'},
// tests below use overwrite body.innerHTML so tests using test/ref/s_ref props need to be above
{desc:"display:table-cell on span",
style:'div { display:table; width:2px } span { display:table-cell }',
body:'<div><span id=test><img src="{png}"><img src="{png}"><img src="{png}"></span></div>'+
'<div><span id=ref><nobr><img src="{png}"><img src="{png}"><img src="{png}"></nobr></span></div>'+
'<div><span id=s_ref><nobr><img src="{png}"><img src="{png}"><br><img src="{png}"></nobr></span></div>'},
{desc:"display:table-cell on span, wbr",
style:'div { display:table; width:2px } span { display:table-cell }',
body:'<div><span id=test><img src="{png}"><wbr><img src="{png}"><img src="{png}"><img src="{png}"></span></div>'+
'<div><span id=ref><nobr><img src="{png}"><img src="{png}"><img src="{png}"><br><img src="{png}"></nobr></span></div>'+
'<div><span id=s_ref><nobr><img src="{png}"><img src="{png}"><br><img src="{png}"><img src="{png}"></nobr></span></div>'},
];
tests.forEach(function(t) {
test(function() {
var style = t.style.replace(/\{png\}/g, png);
var test = t.test && t.test.replace(/\{png\}/g, png);
var ref = t.ref && t.ref.replace(/\{png\}/g, png);
var s_ref = t.s_ref && t.s_ref.replace(/\{png\}/g, png);
var body = t.body && t.body.replace(/\{png\}/g, png);
[q, a, s].forEach(function(win) {
win.style.textContent = style;
if (body !== undefined) {
win.document.body.innerHTML = body;
} else {
win.test.innerHTML = test;
win.ref.innerHTML = ref;
win.s_ref.innerHTML = s_ref;
}
assert_equals(win.getComputedStyle(win.test).width,
win.getComputedStyle(win == q ? win.ref : win.s_ref).width,
'cell width, '+win.title);
var test_imgs = win.test.querySelectorAll('img');
var ref_imgs = win.ref.querySelectorAll('img');
var s_ref_imgs = win.s_ref.querySelectorAll('img');
for (var i = 0; i < test_imgs.length; ++i) {
assert_equals(test_imgs[i].offsetLeft,
win == q ? ref_imgs[i].offsetLeft : s_ref_imgs[i].offsetLeft,
'img '+i+' offsetLeft, '+win.title);
}
});
}, document.title+', '+t.desc);
});
done();
}
</script>
</body>
</html>