forked from mirrors/gecko-dev
d48596e5de
Once MsaaAccessible is no longer inherited into AccessibleWrap, we'll null the AccessibleWrap pointer when the AccessibleWrap shuts down. At that point, MsaaAccessible won't deal with defunct AccessibleWraps. Prepare for this by removing defunct special cases from most callers. To allow for this, the assertion in IsDefunct() had to be changed to allow null mContent when IsProxy() is true. Otherwise, calling IsDefunct() on a live RemoteAccessibleWrap asserts. It seems we previously never called IsDefunct() in this case, but this patch now does due to the call to LocalAcc() in GetIAccessibleFor(). Differential Revision: https://phabricator.services.mozilla.com/D112940
114 lines
3.6 KiB
C++
114 lines
3.6 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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_a11y_Accessible_inl_h_
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#define mozilla_a11y_Accessible_inl_h_
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#include "DocAccessible.h"
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#include "ARIAMap.h"
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#include "nsCoreUtils.h"
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#include "mozilla/dom/Element.h"
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#include "mozilla/PresShell.h"
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#ifdef A11Y_LOG
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# include "Logging.h"
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#endif
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namespace mozilla {
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namespace a11y {
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inline mozilla::a11y::role LocalAccessible::Role() const {
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const nsRoleMapEntry* roleMapEntry = ARIARoleMap();
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if (!roleMapEntry || roleMapEntry->roleRule != kUseMapRole) {
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return ARIATransformRole(NativeRole());
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}
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return ARIATransformRole(roleMapEntry->role);
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}
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inline mozilla::a11y::role LocalAccessible::ARIARole() {
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const nsRoleMapEntry* roleMapEntry = ARIARoleMap();
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if (!roleMapEntry || roleMapEntry->roleRule != kUseMapRole) {
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return mozilla::a11y::roles::NOTHING;
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}
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return ARIATransformRole(roleMapEntry->role);
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}
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inline void LocalAccessible::SetRoleMapEntry(
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const nsRoleMapEntry* aRoleMapEntry) {
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mRoleMapEntryIndex = aria::GetIndexFromRoleMap(aRoleMapEntry);
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}
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inline bool LocalAccessible::IsSearchbox() const {
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const nsRoleMapEntry* roleMapEntry = ARIARoleMap();
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return (roleMapEntry && roleMapEntry->Is(nsGkAtoms::searchbox)) ||
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(mContent->IsHTMLElement(nsGkAtoms::input) &&
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mContent->AsElement()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::type,
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nsGkAtoms::search, eCaseMatters));
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}
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inline bool LocalAccessible::NativeHasNumericValue() const {
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return mGenericTypes & eNumericValue;
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}
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inline bool LocalAccessible::ARIAHasNumericValue() const {
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const nsRoleMapEntry* roleMapEntry = ARIARoleMap();
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if (!roleMapEntry || roleMapEntry->valueRule == eNoValue) return false;
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if (roleMapEntry->valueRule == eHasValueMinMaxIfFocusable) {
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return InteractiveState() & states::FOCUSABLE;
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}
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return true;
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}
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inline bool LocalAccessible::HasNumericValue() const {
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return NativeHasNumericValue() || ARIAHasNumericValue();
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}
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inline bool LocalAccessible::IsDefunct() const {
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MOZ_ASSERT(mStateFlags & eIsDefunct || IsApplication() || IsDoc() ||
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IsProxy() || mStateFlags & eSharedNode || mContent,
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"No content");
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return mStateFlags & eIsDefunct;
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}
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inline void LocalAccessible::ScrollTo(uint32_t aHow) const {
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if (mContent) {
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RefPtr<PresShell> presShell = mDoc->PresShellPtr();
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nsCOMPtr<nsIContent> content = mContent;
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nsCoreUtils::ScrollTo(presShell, content, aHow);
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}
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}
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inline bool LocalAccessible::InsertAfter(LocalAccessible* aNewChild,
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LocalAccessible* aRefChild) {
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MOZ_ASSERT(aNewChild, "No new child to insert");
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if (aRefChild && aRefChild->LocalParent() != this) {
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#ifdef A11Y_LOG
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logging::TreeInfo("broken accessible tree", 0, "parent", this,
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"prev sibling parent", aRefChild->LocalParent(), "child",
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aNewChild, nullptr);
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if (logging::IsEnabled(logging::eVerbose)) {
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logging::Tree("TREE", "Document tree", mDoc);
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logging::DOMTree("TREE", "DOM document tree", mDoc);
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}
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#endif
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MOZ_ASSERT_UNREACHABLE("Broken accessible tree");
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mDoc->UnbindFromDocument(aNewChild);
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return false;
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}
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return InsertChildAt(aRefChild ? aRefChild->IndexInParent() + 1 : 0,
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aNewChild);
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}
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} // namespace a11y
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} // namespace mozilla
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#endif
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