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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_DocAccessibleChild_h
#define mozilla_a11y_DocAccessibleChild_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;
/**
* These objects handle content side communication for an accessible document,
* and their lifetime is the same as the document they represent.
*/
class DocAccessibleChild : public PDocAccessibleChild {
public:
DocAccessibleChild(DocAccessible* aDoc, IProtocol* aManager) : mDoc(aDoc) {
MOZ_COUNT_CTOR(DocAccessibleChild);
SetManager(aManager);
}
~DocAccessibleChild() {
// 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(DocAccessibleChild);
}
virtual void Shutdown() {
DetachDocument();
SendShutdown();
}
/**
* Serializes a shown tree and sends it to the chrome process.
*/
void InsertIntoIpcTree(LocalAccessible* aChild, 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;
MOZ_CAN_RUN_SCRIPT_BOUNDARY
virtual mozilla::ipc::IPCResult RecvSetTextSelection(
const uint64_t& aStartID, const int32_t& aStartOffset,
const uint64_t& aEndID, const int32_t& aEndOffset,
const int32_t& aSelectionNum) override;
MOZ_CAN_RUN_SCRIPT_BOUNDARY
virtual mozilla::ipc::IPCResult RecvScrollTextLeafRangeIntoView(
const uint64_t& aStartID, const int32_t& aStartOffset,
const uint64_t& aEndID, const int32_t& aEndOffset,
const uint32_t& aScrollType) override;
virtual mozilla::ipc::IPCResult RecvRemoveTextSelection(
const uint64_t& aID, const int32_t& aSelectionNum) override;
virtual mozilla::ipc::IPCResult RecvSetCurValue(
const uint64_t& aID, const double& aValue) override;
virtual mozilla::ipc::IPCResult RecvReplaceText(
const uint64_t& aID, const nsAString& aText) override;
virtual mozilla::ipc::IPCResult RecvInsertText(
const uint64_t& aID, const nsAString& aText,
const int32_t& aPosition) override;
virtual mozilla::ipc::IPCResult RecvCopyText(const uint64_t& aID,
const int32_t& aStartPos,
const int32_t& aEndPos) override;
virtual mozilla::ipc::IPCResult RecvCutText(const uint64_t& aID,
const int32_t& aStartPos,
const int32_t& aEndPos) override;
virtual mozilla::ipc::IPCResult RecvDeleteText(
const uint64_t& aID, const int32_t& aStartPos,
const int32_t& aEndPos) override;
MOZ_CAN_RUN_SCRIPT_BOUNDARY
virtual mozilla::ipc::IPCResult RecvPasteText(
const uint64_t& aID, const int32_t& aPosition) override;
virtual mozilla::ipc::IPCResult RecvRestoreFocus() override;
virtual mozilla::ipc::IPCResult RecvScrollToPoint(const uint64_t& aID,
const uint32_t& aScrollType,
const int32_t& aX,
const int32_t& aY) override;
bool SendCaretMoveEvent(const uint64_t& aID, const int32_t& aOffset,
const bool& aIsSelectionCollapsed,
const bool& aIsAtEndOfLine,
const int32_t& aGranularity, bool aFromUser);
bool SendFocusEvent(const uint64_t& aID);
#if !defined(XP_WIN)
virtual mozilla::ipc::IPCResult RecvAnnounce(
const uint64_t& aID, const nsAString& aAnnouncement,
const uint16_t& aPriority) override;
#endif // !defined(XP_WIN)
virtual mozilla::ipc::IPCResult RecvScrollSubstringToPoint(
const uint64_t& aID, const int32_t& aStartOffset,
const int32_t& aEndOffset, const uint32_t& aCoordinateType,
const int32_t& aX, const int32_t& aY) override;
private:
LayoutDeviceIntRect GetCaretRectFor(const uint64_t& aID);
protected:
static void FlattenTree(LocalAccessible* aRoot,
nsTArray<LocalAccessible*>& aTree);
static AccessibleData SerializeAcc(LocalAccessible* aAcc);
void DetachDocument() {
if (mDoc) {
mDoc->SetIPCDoc(nullptr);
mDoc = nullptr;
}
}
LocalAccessible* IdToAccessible(const uint64_t& aID) const;
HyperTextAccessible* IdToHyperTextAccessible(const uint64_t& aID) const;
DocAccessible* mDoc;
friend void DocAccessible::DoInitialUpdate();
};
} // namespace a11y
} // namespace mozilla
#endif // mozilla_a11y_DocAccessibleChild_h
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