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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