mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
150 lines
3.8 KiB
C++
150 lines
3.8 KiB
C++
/* -*- 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 "HTMLLinkAccessible.h"
|
|
|
|
#include "nsCoreUtils.h"
|
|
#include "DocAccessible.h"
|
|
#include "Role.h"
|
|
#include "States.h"
|
|
|
|
#include "nsContentUtils.h"
|
|
#include "mozilla/EventStates.h"
|
|
#include "mozilla/dom/Element.h"
|
|
|
|
using namespace mozilla;
|
|
using namespace mozilla::a11y;
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// HTMLLinkAccessible
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
HTMLLinkAccessible::
|
|
HTMLLinkAccessible(nsIContent* aContent, DocAccessible* aDoc) :
|
|
HyperTextAccessibleWrap(aContent, aDoc)
|
|
{
|
|
}
|
|
|
|
// Expose nsIAccessibleHyperLink unconditionally
|
|
NS_IMPL_ISUPPORTS_INHERITED(HTMLLinkAccessible, HyperTextAccessibleWrap,
|
|
nsIAccessibleHyperLink)
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// nsIAccessible
|
|
|
|
role
|
|
HTMLLinkAccessible::NativeRole()
|
|
{
|
|
return roles::LINK;
|
|
}
|
|
|
|
uint64_t
|
|
HTMLLinkAccessible::NativeState()
|
|
{
|
|
return HyperTextAccessibleWrap::NativeState() & ~states::READONLY;
|
|
}
|
|
|
|
uint64_t
|
|
HTMLLinkAccessible::NativeLinkState() const
|
|
{
|
|
EventStates eventState = mContent->AsElement()->State();
|
|
if (eventState.HasState(NS_EVENT_STATE_UNVISITED))
|
|
return states::LINKED;
|
|
|
|
if (eventState.HasState(NS_EVENT_STATE_VISITED))
|
|
return states::LINKED | states::TRAVERSED;
|
|
|
|
// This is a either named anchor (a link with also a name attribute) or
|
|
// it doesn't have any attributes. Check if 'click' event handler is
|
|
// registered, otherwise bail out.
|
|
return nsCoreUtils::HasClickListener(mContent) ? states::LINKED : 0;
|
|
}
|
|
|
|
uint64_t
|
|
HTMLLinkAccessible::NativeInteractiveState() const
|
|
{
|
|
uint64_t state = HyperTextAccessibleWrap::NativeInteractiveState();
|
|
|
|
// This is how we indicate it is a named anchor. In other words, this anchor
|
|
// can be selected as a location :) There is no other better state to use to
|
|
// indicate this.
|
|
if (mContent->HasAttr(kNameSpaceID_None, nsGkAtoms::name))
|
|
state |= states::SELECTABLE;
|
|
|
|
return state;
|
|
}
|
|
|
|
void
|
|
HTMLLinkAccessible::Value(nsString& aValue)
|
|
{
|
|
aValue.Truncate();
|
|
|
|
HyperTextAccessible::Value(aValue);
|
|
if (aValue.IsEmpty())
|
|
nsContentUtils::GetLinkLocation(mContent->AsElement(), aValue);
|
|
}
|
|
|
|
uint8_t
|
|
HTMLLinkAccessible::ActionCount()
|
|
{
|
|
return IsLinked() ? 1 : HyperTextAccessible::ActionCount();
|
|
}
|
|
|
|
void
|
|
HTMLLinkAccessible::ActionNameAt(uint8_t aIndex, nsAString& aName)
|
|
{
|
|
aName.Truncate();
|
|
|
|
if (!IsLinked()) {
|
|
HyperTextAccessible::ActionNameAt(aIndex, aName);
|
|
return;
|
|
}
|
|
|
|
// Action 0 (default action): Jump to link
|
|
if (aIndex == eAction_Jump)
|
|
aName.AssignLiteral("jump");
|
|
}
|
|
|
|
bool
|
|
HTMLLinkAccessible::DoAction(uint8_t aIndex)
|
|
{
|
|
if (!IsLinked())
|
|
return HyperTextAccessible::DoAction(aIndex);
|
|
|
|
// Action 0 (default action): Jump to link
|
|
if (aIndex != eAction_Jump)
|
|
return false;
|
|
|
|
DoCommand();
|
|
return true;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// HyperLinkAccessible
|
|
|
|
bool
|
|
HTMLLinkAccessible::IsLink()
|
|
{
|
|
// Expose HyperLinkAccessible unconditionally.
|
|
return true;
|
|
}
|
|
|
|
already_AddRefed<nsIURI>
|
|
HTMLLinkAccessible::AnchorURIAt(uint32_t aAnchorIndex)
|
|
{
|
|
return aAnchorIndex == 0 ? mContent->GetHrefURI() : nullptr;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Protected members
|
|
|
|
bool
|
|
HTMLLinkAccessible::IsLinked() const
|
|
{
|
|
EventStates state = mContent->AsElement()->State();
|
|
return state.HasAtLeastOneOfStates(NS_EVENT_STATE_VISITED |
|
|
NS_EVENT_STATE_UNVISITED);
|
|
}
|