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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /accessible/generic/BaseAccessibles.cpp | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | accessible/generic/BaseAccessibles.cpp | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/accessible/generic/BaseAccessibles.cpp b/accessible/generic/BaseAccessibles.cpp new file mode 100644 index 0000000000..f145437d50 --- /dev/null +++ b/accessible/generic/BaseAccessibles.cpp @@ -0,0 +1,149 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* 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/. */ + +#include "BaseAccessibles.h" + +#include "LocalAccessible-inl.h" +#include "HyperTextAccessibleWrap.h" +#include "nsAccessibilityService.h" +#include "nsAccUtils.h" +#include "nsCoreUtils.h" +#include "Role.h" +#include "States.h" +#include "nsIURI.h" + +using namespace mozilla::a11y; + +//////////////////////////////////////////////////////////////////////////////// +// LeafAccessible +//////////////////////////////////////////////////////////////////////////////// + +LeafAccessible::LeafAccessible(nsIContent* aContent, DocAccessible* aDoc) + : AccessibleWrap(aContent, aDoc) { + mStateFlags |= eNoKidsFromDOM; +} + +//////////////////////////////////////////////////////////////////////////////// +// LeafAccessible: LocalAccessible public + +LocalAccessible* LeafAccessible::LocalChildAtPoint( + int32_t aX, int32_t aY, EWhichChildAtPoint aWhichChild) { + // Don't walk into leaf accessibles. + return this; +} + +bool LeafAccessible::InsertChildAt(uint32_t aIndex, LocalAccessible* aChild) { + MOZ_ASSERT_UNREACHABLE("InsertChildAt called on leaf accessible!"); + return false; +} + +bool LeafAccessible::RemoveChild(LocalAccessible* aChild) { + MOZ_ASSERT_UNREACHABLE("RemoveChild called on leaf accessible!"); + return false; +} + +bool LeafAccessible::IsAcceptableChild(nsIContent* aEl) const { + // No children for leaf accessible. + return false; +} + +//////////////////////////////////////////////////////////////////////////////// +// LinkableAccessible +//////////////////////////////////////////////////////////////////////////////// + +//////////////////////////////////////////////////////////////////////////////// +// LinkableAccessible. nsIAccessible + +void LinkableAccessible::TakeFocus() const { + if (const LocalAccessible* actionAcc = ActionWalk()) { + actionAcc->TakeFocus(); + } else { + AccessibleWrap::TakeFocus(); + } +} + +uint64_t LinkableAccessible::NativeLinkState() const { + bool isLink; + const LocalAccessible* actionAcc = ActionWalk(&isLink); + if (isLink) { + return states::LINKED | (actionAcc->LinkState() & states::TRAVERSED); + } + + return 0; +} + +void LinkableAccessible::Value(nsString& aValue) const { + aValue.Truncate(); + + LocalAccessible::Value(aValue); + if (!aValue.IsEmpty()) { + return; + } + + bool isLink; + const LocalAccessible* actionAcc = ActionWalk(&isLink); + if (isLink) { + actionAcc->Value(aValue); + } +} + +const LocalAccessible* LinkableAccessible::ActionWalk(bool* aIsLink, + bool* aIsOnclick) const { + if (aIsOnclick) { + *aIsOnclick = false; + } + if (aIsLink) { + *aIsLink = false; + } + + if (HasPrimaryAction()) { + if (aIsOnclick) { + *aIsOnclick = true; + } + + return nullptr; + } + + const Accessible* actionAcc = ActionAncestor(); + + const LocalAccessible* localAction = + actionAcc ? const_cast<Accessible*>(actionAcc)->AsLocal() : nullptr; + + if (!localAction) { + return nullptr; + } + + if (localAction->LinkState() & states::LINKED) { + if (aIsLink) { + *aIsLink = true; + } + } else if (aIsOnclick) { + *aIsOnclick = true; + } + + return localAction; +} + +KeyBinding LinkableAccessible::AccessKey() const { + if (const LocalAccessible* actionAcc = + const_cast<LinkableAccessible*>(this)->ActionWalk()) { + return actionAcc->AccessKey(); + } + + return LocalAccessible::AccessKey(); +} + +//////////////////////////////////////////////////////////////////////////////// +// DummyAccessible +//////////////////////////////////////////////////////////////////////////////// + +uint64_t DummyAccessible::NativeState() const { return 0; } +uint64_t DummyAccessible::NativeInteractiveState() const { return 0; } + +uint64_t DummyAccessible::NativeLinkState() const { return 0; } + +bool DummyAccessible::NativelyUnavailable() const { return false; } + +void DummyAccessible::ApplyARIAState(uint64_t* aState) const {} |