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69 lines
2.4 KiB
HTML
69 lines
2.4 KiB
HTML
<!doctype html>
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<title>Exiting fullscreen from a nested shadow root should work correctly.</title>
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<link rel="author" title="Mozilla" href="https://mozilla.org">
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<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
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<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1652155">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/resources/testdriver.js"></script>
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<script src="/resources/testdriver-vendor.js"></script>
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<div id="host">
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<button>
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<!--
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This is gross, but testdriver doesn't let us click stuff in shadow
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DOM, so here we are instead, using nested slots.
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-->
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fullscreen
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</button>
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</div>
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<script>
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promise_test(async function() {
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let host = document.getElementById("host");
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host.attachShadow({ mode: "open" }).innerHTML = `
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<style>
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#outer { width: 200px; height: 200px; background: blue }
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</style>
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<div id="outer">
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<slot></slot>
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</div>
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`;
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let outer = host.shadowRoot.getElementById("outer");
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outer.attachShadow({ mode: "open" }).innerHTML = `
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<style>
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#inner { width: 100px; height: 100px; background: purple }
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</style>
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<div id="inner"></div>
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<slot></slot>
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`;
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let button = document.querySelector("button");
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let inner = outer.shadowRoot.getElementById("inner");
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let finished = new Promise(resolve => {
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button.addEventListener("click", async function() {
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await outer.requestFullscreen();
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assert_equals(outer.getRootNode().fullscreenElement, outer);
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assert_equals(document.fullscreenElement, host);
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button.addEventListener("click", async function() {
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await inner.requestFullscreen();
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assert_equals(inner.getRootNode().fullscreenElement, inner);
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assert_equals(document.fullscreenElement, host);
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await document.exitFullscreen();
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assert_equals(inner.getRootNode().fullscreenElement, null);
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assert_equals(outer.getRootNode().fullscreenElement, outer);
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assert_equals(document.fullscreenElement, host);
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resolve();
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}, { once: true });
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requestAnimationFrame(() => requestAnimationFrame(() => {
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test_driver.click(button);
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}));
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}, { once: true });
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});
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test_driver.click(button);
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await finished;
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}, "Exiting fullscreen from a nested shadow root works correctly.");
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</script>
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