LayoutTests/accessibility/mac/basic-embed-pdf-accessibility.html

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
<html>
<head>
<script src="../../resources/js-test.js"></script>
<script src="../../resources/accessibility-helper.js"></script>
<script src="../../resources/ui-helper.js"></script>
</head>
<body>

<div id="embedContainer">
    <embed id="pdfEmbed" width="75%" height="75%" name="plugin" src="../resources/simple-webkit-pages.pdf" type="application/pdf">
</div>

<script>
let output = "This test ensures PDFs loaded in embed tags are exposed in the accessibility tree.\n\n";

if (window.accessibilityController) {
    window.jsTestIsAsync = true;

    var hitTestResult, pdfAxObject, pdfEmbedElement, pdfPageObject, searchResultElement;
    internals?.registerPDFTest(async () => {
        await UIHelper.waitForPDFFadeIn();
        await waitFor(() => {
            embedContainer = accessibilityController.accessibleElementById("embedContainer");
            return embedContainer && embedContainer.childrenCount >= 1;
        });
        await waitFor(() => {
            pdfEmbedElement = accessibilityController.accessibleElementById("pdfEmbed");
            return pdfEmbedElement && pdfEmbedElement.childrenCount >= 1;
        });
        await waitFor(() => {
            pdfAxObject = pdfEmbedElement.childAtIndex(0);
            return pdfAxObject && pdfAxObject.childrenCount >= 1;
        });
        await waitFor(() => {
            pdfPageObject = findFirstPageDescendant(pdfAxObject);
            return pdfPageObject && pdfPageObject.childrenCount >= 1;
        });

        output += expect("pdfEmbedElement.domIdentifier", "'pdfEmbed'");
        output += expect("pdfEmbedElement.role", "'AXRole: AXGroup'");
        // Verify the group that contains the PDF AX object isn't considered empty via an AXEmptyGroup subrole.
        output += expect("pdfEmbedElement.subrole", "'AXSubrole: AXApplicationGroup'");
        output += expect("pdfEmbedElement.childrenCount", "1");

        output += expect("pdfAxObject.stringAttributeValue('AXSubrole')", "'AXPDFPluginSubrole'");
        output += expect("pdfAxObject.childrenCount", "1");
        // Ensure the PDF accessibility object considers the embed element to be its parent.
        output += expect("pdfAxObject.parentElement().domIdentifier", "'pdfEmbed'");

        output += expect("pdfPageObject.role", "'AXRole: AXPage'");
        await waitFor(() => {
            pdfTextNode = traverseChildrenToFirstStaticText(pdfPageObject);
            return pdfTextNode;
        });

        output += expect("pdfTextNode.stringAttributeValue('AXRole')", "'AXStaticText'");
        // Get the first word in the string, since the hierarchy can differ for different OS versions.
        output += expect("pdfTextNode.stringValue.split(' ')[1]", "'Welcome'");

        let domPdfEmbedElement = document.getElementById("pdfEmbed");
        hitTestResult = accessibilityController.elementAtPoint(
            domPdfEmbedElement.offsetLeft + (domPdfEmbedElement.offsetWidth / 2),
            domPdfEmbedElement.offsetTop + (domPdfEmbedElement.offsetHeight / 2),
        );
        let hitTestRole = hitTestResult.stringAttributeValue("AXRole");
        if (hitTestRole == "AXGroup" || hitTestRole == "AXStaticText") {
            // Depending on the PDFKit version, we may get a group or static text at the point we hit test.
            // It doesn't matter much either way -- as long as it's something inside the PDF, we know hit testing works.
            output += "PASS: Hit test role was an expected value\n";
        } else
            output += `FAIL: Hit test role was an unexpected value (${hitTestRole})\n`;

        await waitFor(() => {
            pdfTextNode = traverseChildrenToFirstStaticText(hitTestResult);
            return pdfTextNode;
        })
        output += expect("pdfTextNode.stringAttributeValue('AXRole')", "'AXStaticText'");
        output += expect("pdfTextNode.stringValue.split(' ')[1]", "'Welcome'");

        // Ensure a search from the embed element returns the PDF accessibility object.
        await waitFor(() => {
            searchResultElement = pdfEmbedElement.uiElementForSearchPredicate(null, true, "AXAnyTypeSearchKey", "", false);
            return searchResultElement;
        });
        output += expect("searchResultElement.stringAttributeValue('AXSubrole')", "'AXPDFPluginSubrole'");

        debug(output);
        finishJSTest();
    }, plugin);
}
</script>
</body>
</html>