92 lines
3.6 KiB
HTML
92 lines
3.6 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<title>HTML Test: DocumentOrShadowRoot.activeElement</title>
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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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<body>
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<script>
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function createChildAndFocus(focusParent) {
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const focused = document.createElement("div");
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focused.tabIndex = 0;
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focusParent.appendChild(focused);
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focused.focus();
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return focused;
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}
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test(() => {
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const host = document.createElement("div");
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const shadowRoot = host.attachShadow({ mode: "open" });
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document.body.appendChild(host);
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const focused = createChildAndFocus(shadowRoot);
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assert_equals(document.activeElement, host);
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assert_equals(shadowRoot.activeElement, focused);
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}, "activeElement on document & shadow root when focused element is in the shadow tree");
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test(() => {
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const host = document.createElement("div");
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const shadowRoot = host.attachShadow({ mode: "open" });
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document.body.appendChild(host);
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const focused = createChildAndFocus(document.body);
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assert_equals(document.activeElement, focused);
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assert_equals(shadowRoot.activeElement, null);
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}, "activeElement on document & shadow root when focused element is in the document");
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test(() => {
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const host = document.createElement("div");
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const shadowRoot = host.attachShadow({ mode: "open" });
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shadowRoot.appendChild(document.createElement("slot"));
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document.body.appendChild(host);
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// Child of |host|, will be slotted to the slot in |shadowRoot|.
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const focused = createChildAndFocus(host);
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assert_equals(document.activeElement, focused);
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assert_equals(shadowRoot.activeElement, null);
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}, "activeElement on document & shadow root when focused element is slotted");
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test(() => {
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const host = document.createElement("div");
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const shadowRoot = host.attachShadow({ mode: "open" });
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document.body.appendChild(host);
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const neighborHost = document.createElement("div");
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const neighborShadowRoot = neighborHost.attachShadow({ mode: "open" });
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document.body.appendChild(neighborHost);
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const focused = createChildAndFocus(shadowRoot);
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assert_equals(document.activeElement, host);
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assert_equals(shadowRoot.activeElement, focused);
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assert_equals(neighborShadowRoot.activeElement, null);
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}, "activeElement on a neighboring host when focused element is in another shadow tree");
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test(() => {
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const host = document.createElement("div");
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const shadowRoot = host.attachShadow({ mode: "open" });
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document.body.appendChild(host);
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const nestedHost = document.createElement("div");
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const nestedShadowRoot = nestedHost.attachShadow({ mode: "open" });
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shadowRoot.appendChild(nestedHost);
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const focused = createChildAndFocus(nestedShadowRoot);
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assert_equals(document.activeElement, host);
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assert_equals(shadowRoot.activeElement, nestedHost);
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assert_equals(nestedShadowRoot.activeElement, focused);
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}, "activeElement when focused element is in a nested shadow tree");
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test(() => {
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const host = document.createElement("div");
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const shadowRoot = host.attachShadow({ mode: "open" });
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document.body.appendChild(host);
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const nestedHost = document.createElement("div");
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const nestedShadowRoot = nestedHost.attachShadow({ mode: "open" });
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shadowRoot.appendChild(nestedHost);
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const focused = createChildAndFocus(shadowRoot);
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assert_equals(document.activeElement, host);
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assert_equals(shadowRoot.activeElement, focused);
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assert_equals(nestedShadowRoot.activeElement, null);
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}, "activeElement when focused element is in a parent shadow tree");
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</script>
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</body>
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