зеркало из https://github.com/mozilla/gecko-dev.git
93 строки
2.6 KiB
C++
93 строки
2.6 KiB
C++
/* -*- Mode: c++; c-basic-offset: 2; tab-width: 20; indent-tabs-mode: nil; -*-
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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 "RootAccessibleWrap.h"
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#include "Accessible-inl.h"
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#include "AccessibleOrProxy.h"
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#include "DocAccessibleParent.h"
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#include "ProxyAccessibleWrap.h"
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#include "SessionAccessibility.h"
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#include "mozilla/PresShell.h"
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using namespace mozilla;
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using namespace mozilla::a11y;
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RootAccessibleWrap::RootAccessibleWrap(dom::Document* aDoc,
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PresShell* aPresShell)
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: RootAccessible(aDoc, aPresShell) {}
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RootAccessibleWrap::~RootAccessibleWrap() {}
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AccessibleWrap* RootAccessibleWrap::GetContentAccessible() {
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if (ProxyAccessible* proxy = GetPrimaryRemoteTopLevelContentDoc()) {
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return WrapperFor(proxy);
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}
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// Find first document that is not defunct or hidden.
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// This is exclusively for Fennec which has a deck of browser elements.
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// Otherwise, standard GeckoView will only have one browser element.
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for (size_t i = 0; i < ChildDocumentCount(); i++) {
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DocAccessible* childDoc = GetChildDocumentAt(i);
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if (childDoc && !childDoc->IsDefunct() && !childDoc->IsHidden()) {
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return childDoc;
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}
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}
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return nullptr;
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}
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AccessibleWrap* RootAccessibleWrap::FindAccessibleById(int32_t aID) {
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AccessibleWrap* contentAcc = GetContentAccessible();
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if (!contentAcc) {
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return nullptr;
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}
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if (aID == AccessibleWrap::kNoID) {
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return contentAcc;
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}
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if (contentAcc->IsProxy()) {
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return FindAccessibleById(static_cast<DocProxyAccessibleWrap*>(contentAcc),
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aID);
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}
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return FindAccessibleById(
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static_cast<DocAccessibleWrap*>(contentAcc->AsDoc()), aID);
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}
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AccessibleWrap* RootAccessibleWrap::FindAccessibleById(
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DocProxyAccessibleWrap* aDoc, int32_t aID) {
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AccessibleWrap* acc = aDoc->GetAccessibleByID(aID);
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uint32_t index = 0;
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while (!acc) {
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auto child =
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static_cast<DocProxyAccessibleWrap*>(aDoc->GetChildDocumentAt(index++));
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if (!child) {
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break;
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}
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acc = FindAccessibleById(child, aID);
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}
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return acc;
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}
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AccessibleWrap* RootAccessibleWrap::FindAccessibleById(DocAccessibleWrap* aDoc,
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int32_t aID) {
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AccessibleWrap* acc = aDoc->GetAccessibleByID(aID);
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uint32_t index = 0;
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while (!acc) {
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auto child =
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static_cast<DocAccessibleWrap*>(aDoc->GetChildDocumentAt(index++));
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if (!child) {
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break;
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}
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acc = FindAccessibleById(child, aID);
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}
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return acc;
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}
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