<!DOCTYPE html>
<meta charset="utf-8">
<title>dialog focus delegation</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<body>

<!--
  We focus this one between each test, to ensure that for non-modal dialogs,
  if there is no focus delegate, it stays focused (instead of causing focus to reset to the body).
-->
<button id="focus-between-tests">Focus between tests</button>

<dialog data-description="No autofocus, no delegatesFocus, no siblings">
  <template class="turn-into-shadow-tree">
    <button disabled>Non-focusable</button>
    <button>Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
</dialog>

<dialog data-description="No autofocus, no delegatesFocus, sibling before">
  <button class="focus-me">Focusable</button>
  <template class="turn-into-shadow-tree">
    <button disabled>Non-focusable</button>
    <button>Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
</dialog>

<dialog data-description="No autofocus, no delegatesFocus, sibling after">
  <template class="turn-into-shadow-tree">
    <button disabled>Non-focusable</button>
    <button>Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
  <button class="focus-me">Focusable</button>
</dialog>

<dialog data-description="No autofocus, yes delegatesFocus, no siblings">
  <template class="turn-into-shadow-tree delegates-focus">
    <button disabled>Non-focusable</button>
    <button class="focus-me">Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
</dialog>

<dialog data-description="No autofocus, yes delegatesFocus, sibling before">
  <button class="focus-me">Focusable</button>
  <template class="turn-into-shadow-tree delegates-focus">
    <button disabled>Non-focusable</button>
    <button>Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
</dialog>

<dialog data-description="No autofocus, yes delegatesFocus, sibling after">
  <template class="turn-into-shadow-tree delegates-focus">
    <button disabled>Non-focusable</button>
    <button class="focus-me">Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
  <button>Focusable</button>
</dialog>

<dialog data-description="Autofocus before, no delegatesFocus">
  <button autofocus class="focus-me">Focusable</button>
  <template class="turn-into-shadow-tree">
    <button disabled>Non-focusable</button>
    <button>Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
</dialog>

<dialog data-description="Autofocus before, yes delegatesFocus">
  <button autofocus class="focus-me">Focusable</button>
  <template class="turn-into-shadow-tree delegates-focus">
    <button disabled>Non-focusable</button>
    <button>Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
</dialog>

<dialog data-description="Autofocus after, no delegatesFocus">
  <template class="turn-into-shadow-tree">
    <button disabled>Non-focusable</button>
    <button>Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
  <button autofocus class="focus-me">Focusable</button>
</dialog>

<dialog data-description="Autofocus after, yes delegatesFocus">
  <template class="turn-into-shadow-tree delegates-focus">
    <button disabled>Non-focusable</button>
    <button>Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
  <button autofocus class="focus-me">Focusable</button>
</dialog>

<dialog data-description="Autofocus on shadow host, yes delegatesFocus, no siblings">
  <template class="turn-into-shadow-tree delegates-focus autofocus">
    <button disabled>Non-focusable</button>
    <button class="focus-me">Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
</dialog>

<dialog data-description="Autofocus on shadow host, yes delegatesFocus, sibling before">
  <button>Focusable</button>
  <template class="turn-into-shadow-tree delegates-focus autofocus">
    <button disabled>Non-focusable</button>
    <button class="focus-me">Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
</dialog>

<dialog data-description="Autofocus on shadow host, yes delegatesFocus, sibling after">
  <template class="turn-into-shadow-tree delegates-focus autofocus">
    <button disabled>Non-focusable</button>
    <button class="focus-me">Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
  <button>Focusable</button>
</dialog>

<dialog data-description="Autofocus on shadow host, no delegatesFocus, no siblings">
  <template class="turn-into-shadow-tree autofocus">
    <button disabled>Non-focusable</button>
    <button>Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
</dialog>

<dialog data-description="Autofocus on shadow host, no delegatesFocus, sibling before">
  <button class="focus-me">Focusable</button>
  <template class="turn-into-shadow-tree autofocus">
    <button disabled>Non-focusable</button>
    <button>Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
</dialog>

<dialog data-description="Autofocus on shadow host, no delegatesFocus, sibling after">
  <template class="turn-into-shadow-tree autofocus">
    <button disabled>Non-focusable</button>
    <button>Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
  <button class="focus-me">Focusable</button>
</dialog>

<dialog data-description="Autofocus inside shadow tree, yes delegatesFocus, no siblings">
  <template class="turn-into-shadow-tree delegates-focus">
    <button>Focusable</button>
    <button autofocus class="focus-me">Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
</dialog>

<dialog data-description="Autofocus inside shadow tree, yes delegatesFocus, sibling before">
  <button class="focus-me">Focusable</button>
  <template class="turn-into-shadow-tree delegates-focus">
    <button>Focusable</button>
    <button autofocus>Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
</dialog>

<dialog data-description="Autofocus inside shadow tree, yes delegatesFocus, sibling after">
  <template class="turn-into-shadow-tree delegates-focus">
    <button>Focusable</button>
    <button autofocus class="focus-me">Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
  <button>Focusable</button>
</dialog>

<dialog data-description="Autofocus inside shadow tree, no delegatesFocus, no siblings">
  <template class="turn-into-shadow-tree">
    <button>Focusable</button>
    <button autofocus>Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
</dialog>

<dialog data-description="Autofocus inside shadow tree, no delegatesFocus, sibling before">
  <button class="focus-me">Focusable</button>
  <template class="turn-into-shadow-tree">
    <button>Focusable</button>
    <button autofocus>Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
</dialog>

<dialog data-description="Autofocus inside shadow tree, no delegatesFocus, sibling after">
  <template class="turn-into-shadow-tree">
    <button>Focusable</button>
    <button autofocus>Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
  <button class="focus-me">Focusable</button>
</dialog>

<dialog data-description="Two shadow trees, both delegatesFocus, first tree doesn't have autofocus element, second does">
  <template class="turn-into-shadow-tree delegates-focus">
    <button disabled>Non-focusable</button>
    <button class="focus-me">Focusable</button>
    <button disabled>Non-focusable</button>
  </template>
  <template class="turn-into-shadow-tree delegates-focus">
    <button autofocus>Focusable</button>
  </template>
</dialog>

<dialog data-description="No autofocus, no delegatesFocus, slotted target">
  <template class="turn-into-shadow-tree">
    <button>Focusable</button>
    <slot></slot>
    <button>Focusable</button>
  </template>
  <button class="focus-me">Focusable</button>
</dialog>

<dialog data-description="Shadowroot on child, no autofocus, no delegatesFocus">
  <div>
    <template class="turn-into-shadow-tree">
      <button>Focusable</button>
    </template>
  </div>
  <button class="focus-me">Focusable</button>
</dialog>

<script>
for (const template of document.querySelectorAll(".turn-into-shadow-tree")) {
  const div = document.createElement("div");
  div.attachShadow({ mode: "open", delegatesFocus: template.classList.contains("delegates-focus")  });

  if (template.classList.contains("autofocus")) {
    div.setAttribute("autofocus", true);
  }
  div.shadowRoot.append(template.content);
  template.replaceWith(div);
}

const focusBetweenTests = document.querySelector("#focus-between-tests");

for (const dialog of document.querySelectorAll("dialog")) {
  for (const method of ["show", "showModal"]) {
    test(t => {
      focusBetweenTests.focus();

      dialog[method]();
      t.add_cleanup(() => dialog.close());

      const expectedFocusOutsideShadowTree = dialog.querySelector(".focus-me");
      if (expectedFocusOutsideShadowTree) {
        assert_equals(document.activeElement, expectedFocusOutsideShadowTree);
      } else {
        const shadowHost = dialog.querySelector("div");
        const expectedFocusInsideShadowTree = shadowHost.shadowRoot.querySelector(".focus-me");
        if (expectedFocusInsideShadowTree) {
          assert_equals(document.activeElement, shadowHost);
          assert_equals(shadowHost.shadowRoot.activeElement, expectedFocusInsideShadowTree);
        } else {
          // There is no focus delegate. The dialog element should be focused.
          assert_equals(document.activeElement, dialog);
        }
      }
    }, `${method}: ${dialog.dataset.description}`);
  }
}
</script>
