зеркало из https://github.com/mozilla/gecko-dev.git
100 строки
3.2 KiB
C++
100 строки
3.2 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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#include "mozilla/a11y/DocAccessibleChildBase.h"
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#include "mozilla/a11y/ProxyAccessible.h"
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#include "Accessible-inl.h"
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namespace mozilla {
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namespace a11y {
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/* static */
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uint32_t DocAccessibleChildBase::InterfacesFor(Accessible* aAcc) {
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uint32_t interfaces = 0;
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if (aAcc->IsHyperText() && aAcc->AsHyperText()->IsTextRole())
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interfaces |= Interfaces::HYPERTEXT;
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if (aAcc->IsLink()) interfaces |= Interfaces::HYPERLINK;
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if (aAcc->HasNumericValue()) interfaces |= Interfaces::VALUE;
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if (aAcc->IsImage()) interfaces |= Interfaces::IMAGE;
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if (aAcc->IsTable()) {
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interfaces |= Interfaces::TABLE;
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}
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if (aAcc->IsTableCell()) interfaces |= Interfaces::TABLECELL;
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if (aAcc->IsDoc()) interfaces |= Interfaces::DOCUMENT;
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if (aAcc->IsSelect()) {
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interfaces |= Interfaces::SELECTION;
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}
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if (aAcc->ActionCount()) {
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interfaces |= Interfaces::ACTION;
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}
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return interfaces;
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}
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/* static */
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void DocAccessibleChildBase::SerializeTree(Accessible* aRoot,
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nsTArray<AccessibleData>& aTree) {
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uint64_t id = reinterpret_cast<uint64_t>(aRoot->UniqueID());
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#if defined(XP_WIN)
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int32_t msaaId = AccessibleWrap::GetChildIDFor(aRoot);
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#endif
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a11y::role role = aRoot->Role();
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uint32_t childCount = aRoot->ChildCount();
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uint32_t interfaces = InterfacesFor(aRoot);
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// OuterDocAccessibles are special because we don't want to serialize the
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// child doc here, we'll call PDocAccessibleConstructor in
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// NotificationController.
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MOZ_ASSERT(!aRoot->IsDoc(), "documents shouldn't be serialized");
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if (aRoot->IsOuterDoc()) {
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childCount = 0;
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}
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#if defined(XP_WIN)
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aTree.AppendElement(AccessibleData(id, msaaId, role, childCount, interfaces));
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#else
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aTree.AppendElement(AccessibleData(id, role, childCount, interfaces));
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#endif
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for (uint32_t i = 0; i < childCount; i++) {
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SerializeTree(aRoot->GetChildAt(i), aTree);
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}
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}
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void DocAccessibleChildBase::InsertIntoIpcTree(Accessible* aParent,
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Accessible* aChild,
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uint32_t aIdxInParent) {
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uint64_t parentID =
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aParent->IsDoc() ? 0 : reinterpret_cast<uint64_t>(aParent->UniqueID());
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nsTArray<AccessibleData> shownTree;
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ShowEventData data(parentID, aIdxInParent, shownTree, true);
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SerializeTree(aChild, data.NewTree());
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MaybeSendShowEvent(data, false);
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}
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void DocAccessibleChildBase::ShowEvent(AccShowEvent* aShowEvent) {
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Accessible* parent = aShowEvent->Parent();
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uint64_t parentID =
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parent->IsDoc() ? 0 : reinterpret_cast<uint64_t>(parent->UniqueID());
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uint32_t idxInParent = aShowEvent->GetAccessible()->IndexInParent();
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nsTArray<AccessibleData> shownTree;
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ShowEventData data(parentID, idxInParent, shownTree, false);
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SerializeTree(aShowEvent->GetAccessible(), data.NewTree());
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MaybeSendShowEvent(data, aShowEvent->IsFromUserInput());
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}
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} // namespace a11y
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} // namespace mozilla
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