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/* -*- 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 "XULTabAccessible.h"
#include "nsAccUtils.h"
#include "Relation.h"
#include "Role.h"
#include "States.h"
// NOTE: alphabetically ordered
#include "nsIDocument.h"
#include "nsIDOMXULSelectCntrlEl.h"
#include "nsIDOMXULSelectCntrlItemEl.h"
#include "nsIDOMXULRelatedElement.h"
using namespace mozilla::a11y;
////////////////////////////////////////////////////////////////////////////////
// XULTabAccessible
////////////////////////////////////////////////////////////////////////////////
XULTabAccessible::
XULTabAccessible(nsIContent* aContent, DocAccessible* aDoc) :
AccessibleWrap(aContent, aDoc)
{
}
////////////////////////////////////////////////////////////////////////////////
// XULTabAccessible: Accessible
uint8_t
XULTabAccessible::ActionCount()
{
return 1;
}
void
XULTabAccessible::ActionNameAt(uint8_t aIndex, nsAString& aName)
{
if (aIndex == eAction_Switch)
aName.AssignLiteral("switch");
}
bool
XULTabAccessible::DoAction(uint8_t index)
{
if (index == eAction_Switch) {
nsCOMPtr<nsIDOMXULElement> tab(do_QueryInterface(mContent));
if (tab) {
tab->Click();
return true;
}
}
return false;
}
////////////////////////////////////////////////////////////////////////////////
// XULTabAccessible: Accessible
role
XULTabAccessible::NativeRole()
{
return roles::PAGETAB;
}
uint64_t
XULTabAccessible::NativeState()
{
// Possible states: focused, focusable, unavailable(disabled), offscreen.
// get focus and disable status from base class
uint64_t state = AccessibleWrap::NativeState();
// Check whether the tab is selected and/or pinned
nsCOMPtr<nsIDOMXULSelectControlItemElement> tab(do_QueryInterface(mContent));
if (tab) {
bool selected = false;
if (NS_SUCCEEDED(tab->GetSelected(&selected)) && selected)
state |= states::SELECTED;
if (mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::pinned,
nsGkAtoms::_true, eCaseMatters))
state |= states::PINNED;
}
return state;
}
uint64_t
XULTabAccessible::NativeInteractiveState() const
{
uint64_t state = Accessible::NativeInteractiveState();
return (state & states::UNAVAILABLE) ? state : state | states::SELECTABLE;
}
Relation
XULTabAccessible::RelationByType(RelationType aType)
{
Relation rel = AccessibleWrap::RelationByType(aType);
if (aType != RelationType::LABEL_FOR)
return rel;
// Expose 'LABEL_FOR' relation on tab accessible for tabpanel accessible.
nsCOMPtr<nsIDOMXULRelatedElement> tabsElm =
do_QueryInterface(mContent->GetParent());
if (!tabsElm)
return rel;
nsCOMPtr<nsIDOMNode> domNode(DOMNode());
nsCOMPtr<nsIDOMNode> tabpanelNode;
tabsElm->GetRelatedElement(domNode, getter_AddRefs(tabpanelNode));
if (!tabpanelNode)
return rel;
nsCOMPtr<nsIContent> tabpanelContent(do_QueryInterface(tabpanelNode));
rel.AppendTarget(mDoc, tabpanelContent);
return rel;
}
////////////////////////////////////////////////////////////////////////////////
// XULTabsAccessible
////////////////////////////////////////////////////////////////////////////////
XULTabsAccessible::
XULTabsAccessible(nsIContent* aContent, DocAccessible* aDoc) :
XULSelectControlAccessible(aContent, aDoc)
{
}
role
XULTabsAccessible::NativeRole()
{
return roles::PAGETABLIST;
}
uint8_t
XULTabsAccessible::ActionCount()
{
return 0;
}
void
XULTabsAccessible::Value(nsString& aValue)
{
aValue.Truncate();
}
ENameValueFlag
XULTabsAccessible::NativeName(nsString& aName)
{
// no name
return eNameOK;
}
////////////////////////////////////////////////////////////////////////////////
// XULTabpanelsAccessible
////////////////////////////////////////////////////////////////////////////////
role
XULTabpanelsAccessible::NativeRole()
{
return roles::PANE;
}
////////////////////////////////////////////////////////////////////////////////
// XULTabpanelAccessible
////////////////////////////////////////////////////////////////////////////////
XULTabpanelAccessible::
XULTabpanelAccessible(nsIContent* aContent, DocAccessible* aDoc) :
AccessibleWrap(aContent, aDoc)
{
}
role
XULTabpanelAccessible::NativeRole()
{
return roles::PROPERTYPAGE;
}
Relation
XULTabpanelAccessible::RelationByType(RelationType aType)
{
Relation rel = AccessibleWrap::RelationByType(aType);
if (aType != RelationType::LABELLED_BY)
return rel;
// Expose 'LABELLED_BY' relation on tabpanel accessible for tab accessible.
nsCOMPtr<nsIDOMXULRelatedElement> tabpanelsElm =
do_QueryInterface(mContent->GetParent());
if (!tabpanelsElm)
return rel;
nsCOMPtr<nsIDOMNode> domNode(DOMNode());
nsCOMPtr<nsIDOMNode> tabNode;
tabpanelsElm->GetRelatedElement(domNode, getter_AddRefs(tabNode));
if (!tabNode)
return rel;
nsCOMPtr<nsIContent> tabContent(do_QueryInterface(tabNode));
rel.AppendTarget(mDoc, tabContent);
return rel;
}
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