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117 lines
4.3 KiB
HTML
117 lines
4.3 KiB
HTML
<!doctype html>
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<meta charset="utf-8">
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<title>CSSOM: Correct resolution of resolved value for display-affected pseudo-elements</title>
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<link rel="help" href="https://drafts.csswg.org/cssom/#dom-window-getcomputedstyle">
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<link rel="help" href="https://drafts.csswg.org/cssom/#resolved-values">
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<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
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<script src=/resources/testharness.js></script>
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<script src=/resources/testharnessreport.js></script>
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<style>
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#test { width: 100px; }
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#contents {
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display: contents;
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border: 10px solid red;
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}
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#test::before,
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#test::after,
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#contents::before,
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#contents::after,
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#flex::before,
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#flex::after {
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content: " ";
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width: 50%;
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height: 10px;
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display: block;
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}
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#none {
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display: none;
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}
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#none::before,
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#none::after {
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content: "Foo";
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}
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#flex {
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display: flex;
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}
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#flex-no-pseudo {
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display: flex;
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}
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#contents-pseudos::before,
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#contents-pseudos::after {
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display: contents;
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content: "foo";
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position: absolute;
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}
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</style>
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<div id="test">
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<div id="contents"></div>
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<div id="none"></div>
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<div id="flex"></div>
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<div id="flex-no-pseudo"></div>
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<div id="contents-pseudos"></div>
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</div>
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<script>
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test(function() {
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var div = document.getElementById('test');
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[":before", ":after"].forEach(function(pseudo) {
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assert_equals(getComputedStyle(div, pseudo).width, "50px");
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});
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}, "Resolution of width is correct for ::before and ::after pseudo-elements");
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test(function() {
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var contents = document.getElementById('contents');
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[":before", ":after"].forEach(function(pseudo) {
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assert_equals(getComputedStyle(contents, pseudo).width, "50px");
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});
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}, "Resolution of width is correct for ::before and ::after pseudo-elements of display: contents elements");
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test(function() {
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var has_no_pseudos = document.body;
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has_no_pseudos.style.position = "relative";
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[":before", ":after"].forEach(function(pseudo) {
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assert_equals(getComputedStyle(has_no_pseudos, pseudo).position, "static",
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"Nonexistent " + pseudo + " pseudo-element shouldn't claim to have " +
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"the same style as the originating element");
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assert_equals(getComputedStyle(has_no_pseudos, pseudo).width, "auto",
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"Nonexistent " + pseudo + " pseudo-element shouldn't claim to have " +
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"definite size");
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});
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}, "Resolution of nonexistent pseudo-element styles");
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test(function() {
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var none = document.getElementById('none');
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[":before", ":after"].forEach(function(pseudo) {
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assert_equals(getComputedStyle(none, pseudo).content, "\"Foo\"",
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"Pseudo-styles of display: none elements should be correct");
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});
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}, "Resolution of pseudo-element styles in display: none elements");
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test(function() {
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var flex = document.getElementById('flex');
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[":before", ":after"].forEach(function(pseudo) {
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assert_equals(getComputedStyle(flex, pseudo).display, "block",
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"Pseudo-styles of display: flex elements should get blockified");
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});
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}, "Item-based blockification of pseudo-elements");
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test(function() {
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var flexNoPseudo = document.getElementById('flex-no-pseudo');
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[":before", ":after"].forEach(function(pseudo) {
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assert_equals(getComputedStyle(flexNoPseudo, pseudo).display, "block",
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"Pseudo-styles of display: flex elements should get blockified");
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});
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}, "Item-based blockification of nonexistent pseudo-elements");
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test(function() {
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var contentsPseudos = document.getElementById('contents-pseudos');
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[":before", ":after"].forEach(function(pseudo) {
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assert_equals(getComputedStyle(contentsPseudos, pseudo).display, "contents",
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"display: contents in " + pseudo + " should get reflected on CSSOM");
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assert_equals(getComputedStyle(contentsPseudos, pseudo).width, "auto",
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pseudo + " with display: contents should have no box");
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assert_equals(getComputedStyle(contentsPseudos, pseudo).position, "absolute",
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"display: contents in " + pseudo + " should reflect other non-inherited properties in CSSOM");
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});
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}, "display: contents on pseudo-elements");
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test(function() {
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var div = document.getElementById('test');
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assert_throws(new TypeError(), () => getComputedStyle(div, "totallynotapseudo"),
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"getComputedStyle with an unknown pseudo-element throws");
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}, "Unknown pseudo-elements throw");
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</script>
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