зеркало из https://github.com/mozilla/gecko-dev.git
115 строки
3.4 KiB
C++
115 строки
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_a11y_DocAccessibleChildBase_h
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#define mozilla_a11y_DocAccessibleChildBase_h
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#include "mozilla/a11y/DocAccessible.h"
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#include "mozilla/a11y/PDocAccessibleChild.h"
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#include "mozilla/Unused.h"
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#include "nsISupportsImpl.h"
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namespace mozilla {
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namespace a11y {
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class LocalAccessible;
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class AccShowEvent;
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class DocAccessibleChildBase : public PDocAccessibleChild {
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public:
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explicit DocAccessibleChildBase(DocAccessible* aDoc)
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: mDoc(aDoc), mIsRemoteConstructed(false) {
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MOZ_COUNT_CTOR(DocAccessibleChildBase);
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}
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~DocAccessibleChildBase() {
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// Shutdown() should have been called, but maybe it isn't if the process is
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// killed?
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MOZ_ASSERT(!mDoc);
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if (mDoc) {
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mDoc->SetIPCDoc(nullptr);
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}
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MOZ_COUNT_DTOR(DocAccessibleChildBase);
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}
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virtual void Shutdown() {
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DetachDocument();
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SendShutdown();
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}
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/**
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* Serializes a shown tree and sends it to the chrome process.
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*/
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void InsertIntoIpcTree(LocalAccessible* aParent, LocalAccessible* aChild,
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uint32_t aIdxInParent, bool aSuppressShowEvent);
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void ShowEvent(AccShowEvent* aShowEvent);
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virtual void ActorDestroy(ActorDestroyReason) override {
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if (!mDoc) {
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return;
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}
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mDoc->SetIPCDoc(nullptr);
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mDoc = nullptr;
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}
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virtual mozilla::ipc::IPCResult RecvTakeFocus(const uint64_t& aID) override;
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MOZ_CAN_RUN_SCRIPT_BOUNDARY
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virtual mozilla::ipc::IPCResult RecvScrollTo(
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const uint64_t& aID, const uint32_t& aScrollType) override;
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virtual mozilla::ipc::IPCResult RecvTakeSelection(
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const uint64_t& aID) override;
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virtual mozilla::ipc::IPCResult RecvSetSelected(const uint64_t& aID,
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const bool& aSelect) override;
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virtual mozilla::ipc::IPCResult RecvVerifyCache(
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const uint64_t& aID, const uint64_t& aCacheDomain,
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AccAttributes* aFields) override;
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virtual mozilla::ipc::IPCResult RecvDoActionAsync(
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const uint64_t& aID, const uint8_t& aIndex) override;
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virtual mozilla::ipc::IPCResult RecvSetCaretOffset(
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const uint64_t& aID, const int32_t& aOffset) override;
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protected:
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static void FlattenTree(LocalAccessible* aRoot,
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nsTArray<LocalAccessible*>& aTree);
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static void SerializeTree(nsTArray<LocalAccessible*>& aTree,
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nsTArray<AccessibleData>& aData);
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virtual void MaybeSendShowEvent(ShowEventData& aData, bool aFromUser) {
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Unused << SendShowEvent(aData, aFromUser);
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}
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void DetachDocument() {
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if (mDoc) {
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mDoc->SetIPCDoc(nullptr);
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mDoc = nullptr;
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}
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}
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bool IsConstructedInParentProcess() const { return mIsRemoteConstructed; }
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void SetConstructedInParentProcess() { mIsRemoteConstructed = true; }
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LocalAccessible* IdToAccessible(const uint64_t& aID) const;
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HyperTextAccessible* IdToHyperTextAccessible(const uint64_t& aID) const;
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DocAccessible* mDoc;
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bool mIsRemoteConstructed;
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friend void DocAccessible::DoInitialUpdate();
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};
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} // namespace a11y
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} // namespace mozilla
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#endif // mozilla_a11y_DocAccessibleChildBase_h
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