1 files changed, 114 insertions, 0 deletions
diff --git a/accessible/ipc/DocAccessibleChildBase.h b/accessible/ipc/DocAccessibleChildBase.h
new file mode 100644
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+++ b/accessible/ipc/DocAccessibleChildBase.h
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+/* -*- 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/. */
+
+#ifndef mozilla_a11y_DocAccessibleChildBase_h
+#define mozilla_a11y_DocAccessibleChildBase_h
+
+#include "mozilla/a11y/DocAccessible.h"
+#include "mozilla/a11y/PDocAccessibleChild.h"
+#include "mozilla/Unused.h"
+#include "nsISupportsImpl.h"
+
+namespace mozilla {
+namespace a11y {
+
+class LocalAccessible;
+class AccShowEvent;
+
+class DocAccessibleChildBase : public PDocAccessibleChild {
+ public:
+  explicit DocAccessibleChildBase(DocAccessible* aDoc)
+      : mDoc(aDoc), mIsRemoteConstructed(false) {
+    MOZ_COUNT_CTOR(DocAccessibleChildBase);
+  }
+
+  ~DocAccessibleChildBase() {
+    // Shutdown() should have been called, but maybe it isn't if the process is
+    // killed?
+    MOZ_ASSERT(!mDoc);
+    if (mDoc) {
+      mDoc->SetIPCDoc(nullptr);
+    }
+
+    MOZ_COUNT_DTOR(DocAccessibleChildBase);
+  }
+
+  virtual void Shutdown() {
+    DetachDocument();
+    SendShutdown();
+  }
+
+  /**
+   * Serializes a shown tree and sends it to the chrome process.
+   */
+  void InsertIntoIpcTree(LocalAccessible* aParent, LocalAccessible* aChild,
+                         uint32_t aIdxInParent, bool aSuppressShowEvent);
+  void ShowEvent(AccShowEvent* aShowEvent);
+
+  virtual void ActorDestroy(ActorDestroyReason) override {
+    if (!mDoc) {
+      return;
+    }
+
+    mDoc->SetIPCDoc(nullptr);
+    mDoc = nullptr;
+  }
+
+  virtual mozilla::ipc::IPCResult RecvTakeFocus(const uint64_t& aID) override;
+
+  MOZ_CAN_RUN_SCRIPT_BOUNDARY
+  virtual mozilla::ipc::IPCResult RecvScrollTo(
+      const uint64_t& aID, const uint32_t& aScrollType) override;
+
+  virtual mozilla::ipc::IPCResult RecvTakeSelection(
+      const uint64_t& aID) override;
+  virtual mozilla::ipc::IPCResult RecvSetSelected(const uint64_t& aID,
+                                                  const bool& aSelect) override;
+
+  virtual mozilla::ipc::IPCResult RecvVerifyCache(
+      const uint64_t& aID, const uint64_t& aCacheDomain,
+      AccAttributes* aFields) override;
+
+  virtual mozilla::ipc::IPCResult RecvDoActionAsync(
+      const uint64_t& aID, const uint8_t& aIndex) override;
+
+  virtual mozilla::ipc::IPCResult RecvSetCaretOffset(
+      const uint64_t& aID, const int32_t& aOffset) override;
+
+ protected:
+  static void FlattenTree(LocalAccessible* aRoot,
+                          nsTArray<LocalAccessible*>& aTree);
+
+  static void SerializeTree(nsTArray<LocalAccessible*>& aTree,
+                            nsTArray<AccessibleData>& aData);
+
+  virtual void MaybeSendShowEvent(ShowEventData& aData, bool aFromUser) {
+    Unused << SendShowEvent(aData, aFromUser);
+  }
+
+  void DetachDocument() {
+    if (mDoc) {
+      mDoc->SetIPCDoc(nullptr);
+      mDoc = nullptr;
+    }
+  }
+
+  bool IsConstructedInParentProcess() const { return mIsRemoteConstructed; }
+  void SetConstructedInParentProcess() { mIsRemoteConstructed = true; }
+
+  LocalAccessible* IdToAccessible(const uint64_t& aID) const;
+  HyperTextAccessible* IdToHyperTextAccessible(const uint64_t& aID) const;
+
+  DocAccessible* mDoc;
+  bool mIsRemoteConstructed;
+
+  friend void DocAccessible::DoInitialUpdate();
+};
+
+}  // namespace a11y
+}  // namespace mozilla
+
+#endif  // mozilla_a11y_DocAccessibleChildBase_h