1 files changed, 99 insertions, 0 deletions
diff --git a/accessible/ipc/DocAccessibleChildBase.cpp b/accessible/ipc/DocAccessibleChildBase.cpp
new file mode 100644
index 0000000000..12dcc8b8e1
--- /dev/null
+++ b/accessible/ipc/DocAccessibleChildBase.cpp
@@ -0,0 +1,99 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/a11y/DocAccessibleChildBase.h"
+#include "mozilla/a11y/ProxyAccessible.h"
+
+#include "Accessible-inl.h"
+
+namespace mozilla {
+namespace a11y {
+
+/* static */
+uint32_t DocAccessibleChildBase::InterfacesFor(Accessible* aAcc) {
+  uint32_t interfaces = 0;
+  if (aAcc->IsHyperText() && aAcc->AsHyperText()->IsTextRole())
+    interfaces |= Interfaces::HYPERTEXT;
+
+  if (aAcc->IsLink()) interfaces |= Interfaces::HYPERLINK;
+
+  if (aAcc->HasNumericValue()) interfaces |= Interfaces::VALUE;
+
+  if (aAcc->IsImage()) interfaces |= Interfaces::IMAGE;
+
+  if (aAcc->IsTable()) {
+    interfaces |= Interfaces::TABLE;
+  }
+
+  if (aAcc->IsTableCell()) interfaces |= Interfaces::TABLECELL;
+
+  if (aAcc->IsDoc()) interfaces |= Interfaces::DOCUMENT;
+
+  if (aAcc->IsSelect()) {
+    interfaces |= Interfaces::SELECTION;
+  }
+
+  if (aAcc->ActionCount()) {
+    interfaces |= Interfaces::ACTION;
+  }
+
+  return interfaces;
+}
+
+/* static */
+void DocAccessibleChildBase::SerializeTree(Accessible* aRoot,
+                                           nsTArray<AccessibleData>& aTree) {
+  uint64_t id = reinterpret_cast<uint64_t>(aRoot->UniqueID());
+#if defined(XP_WIN)
+  int32_t msaaId = AccessibleWrap::GetChildIDFor(aRoot);
+#endif
+  a11y::role role = aRoot->Role();
+  uint32_t childCount = aRoot->ChildCount();
+  uint32_t interfaces = InterfacesFor(aRoot);
+
+  // OuterDocAccessibles are special because we don't want to serialize the
+  // child doc here, we'll call PDocAccessibleConstructor in
+  // NotificationController.
+  MOZ_ASSERT(!aRoot->IsDoc(), "documents shouldn't be serialized");
+  if (aRoot->IsOuterDoc()) {
+    childCount = 0;
+  }
+
+#if defined(XP_WIN)
+  aTree.AppendElement(AccessibleData(id, msaaId, role, childCount, interfaces));
+#else
+  aTree.AppendElement(AccessibleData(id, role, childCount, interfaces));
+#endif
+
+  for (uint32_t i = 0; i < childCount; i++) {
+    SerializeTree(aRoot->GetChildAt(i), aTree);
+  }
+}
+
+void DocAccessibleChildBase::InsertIntoIpcTree(Accessible* aParent,
+                                               Accessible* aChild,
+                                               uint32_t aIdxInParent) {
+  uint64_t parentID =
+      aParent->IsDoc() ? 0 : reinterpret_cast<uint64_t>(aParent->UniqueID());
+  nsTArray<AccessibleData> shownTree;
+  ShowEventData data(parentID, aIdxInParent, shownTree, true);
+  SerializeTree(aChild, data.NewTree());
+  MaybeSendShowEvent(data, false);
+}
+
+void DocAccessibleChildBase::ShowEvent(AccShowEvent* aShowEvent) {
+  Accessible* parent = aShowEvent->Parent();
+  uint64_t parentID =
+      parent->IsDoc() ? 0 : reinterpret_cast<uint64_t>(parent->UniqueID());
+  uint32_t idxInParent = aShowEvent->GetAccessible()->IndexInParent();
+  nsTArray<AccessibleData> shownTree;
+  ShowEventData data(parentID, idxInParent, shownTree, false);
+  SerializeTree(aShowEvent->GetAccessible(), data.NewTree());
+  MaybeSendShowEvent(data, aShowEvent->IsFromUserInput());
+}
+
+}  // namespace a11y
+}  // namespace mozilla