92 lines
3.4 KiB
HTML
92 lines
3.4 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<title>Adoptedstylesheets as ObservableArray</title>
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<link rel="author" href="mailto:masonf@chromium.org">
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<link rel="help" href="https://drafts.csswg.org/cssom/#extensions-to-the-document-or-shadow-root-interface">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<span id=target>Test Span</span>
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<div id="divNonConstructed" class="nonConstructed"></div>
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<style>
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#target {background-color: red;}
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</style>
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<script>
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const shadowRootNonConstructed = divNonConstructed.attachShadow({mode:'open'})
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nonConstructedStyle = document.createElement("style");
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shadowRootNonConstructed.appendChild(nonConstructedStyle);
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nonConstructedStyle.sheet.insertRule(".nonConstructed { color: red; }", 0);
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const nonConstructedStyleSheet = nonConstructedStyle.sheet;
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function assert_is(targetStyle, color) {
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assert_equals(targetStyle.getPropertyValue('background-color'), color);
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}
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function testRoot(d, targetStyle) {
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const red = 'rgb(255, 0, 0)';
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const green = 'rgb(0, 255, 0)';
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const blue = 'rgb(0, 0, 255)';
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const sheet1 = new CSSStyleSheet();
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sheet1.replaceSync('#target {background-color:lime !important;}');
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const sheet2 = new CSSStyleSheet();
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sheet2.replaceSync('#target {background-color:blue !important;}');
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assert_equals(d.adoptedStyleSheets.length, 0);
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assert_is(targetStyle, red);
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d.adoptedStyleSheets = [sheet1];
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assert_equals(d.adoptedStyleSheets.length, 1);
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assert_is(targetStyle, green);
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d.adoptedStyleSheets.push(sheet2);
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assert_equals(d.adoptedStyleSheets.length, 2);
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assert_is(targetStyle, blue);
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d.adoptedStyleSheets.pop();
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assert_equals(d.adoptedStyleSheets.length, 1);
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assert_is(targetStyle, green);
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d.adoptedStyleSheets.push(sheet2);
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d.adoptedStyleSheets.reverse();
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assert_equals(d.adoptedStyleSheets.length, 2);
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assert_is(targetStyle, green);
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d.adoptedStyleSheets.splice(1, 1);
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assert_equals(d.adoptedStyleSheets.length, 1);
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assert_is(targetStyle, blue);
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d.adoptedStyleSheets.splice(0, 1, sheet1);
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assert_equals(d.adoptedStyleSheets.length, 1);
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assert_is(targetStyle, green);
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// Adding non-constructed stylesheet to AdoptedStyleSheets is not allowed.
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assert_throws_dom('NotAllowedError', () => { document.adoptedStyleSheets.push(nonConstructedStyleSheet); });
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assert_throws_js(TypeError, () => { document.adoptedStyleSheets.push("foo"); });
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}
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test(function() {
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const target = document.querySelector('#target');
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const targetStyle = window.getComputedStyle(target);
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testRoot(document, targetStyle);
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}, "document.adoptedStyleSheets should allow mutation in-place");
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test(function() {
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const host = document.createElement('div');
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document.body.appendChild(host);
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const shadow = host.attachShadow({mode: 'open'});
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shadow.innerHTML = '<span id=target>Test Shadow Span</span><style>#target{background-color: red;}</style>';
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const target = shadow.querySelector('#target');
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const targetStyle = window.getComputedStyle(target);
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testRoot(shadow, targetStyle);
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}, "shadowRoot.adoptedStyleSheets should allow mutation in-place");
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test(function() {
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assert_true(Array.isArray(document.adoptedStyleSheets));
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const host = document.createElement('div');
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document.body.appendChild(host);
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const shadow = host.attachShadow({mode: 'open'});
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assert_true(Array.isArray(shadow.adoptedStyleSheets));
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}, "adoptedStyleSheets should return true for isArray()");
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</script>
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