Bug 1682865: Map roles::EDITCOMBOBOX to mozTextAccessible r=eeejay

Differential Revision: https://phabricator.services.mozilla.com/D101407

accessible/mac/AccessibleWrap.mm

@@ -326,6 +326,7 @@ Class a11y::GetTypeFromRole(roles::Role aRole) {
     case roles::ENTRY:
     case roles::CAPTION:
     case roles::ACCEL_LABEL:
+    case roles::EDITCOMBOBOX:
     case roles::PASSWORD_TEXT:
       // normal textfield (static or editable)
       return [mozTextAccessible class];

accessible/tests/browser/mac/browser_text_input.js

@@ -302,3 +302,15 @@ addAccessibleTask(
   },
   { iframe: true }
 );
+
+// Test input that gets role::EDITCOMBOBOX
+addAccessibleTask(`<input type="text" id="box">`, async (browser, accDoc) => {
+  const box = getNativeInterface(accDoc, "box");
+  const editableAncestor = box.getAttributeValue("AXEditableAncestor");
+  is(
+    editableAncestor.getAttributeValue("AXDOMIdentifier"),
+    "box",
+    "Editable ancestor is box itself"
+  );
+  await focusIntoInputAndType(accDoc, "box");
+});