mirror of
https://github.com/classilla/tenfourfox.git
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210 lines
5.0 KiB
C++
210 lines
5.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 "XULTabAccessible.h"
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#include "nsAccUtils.h"
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#include "Relation.h"
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#include "Role.h"
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#include "States.h"
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// NOTE: alphabetically ordered
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#include "nsIDocument.h"
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#include "nsIDOMXULSelectCntrlEl.h"
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#include "nsIDOMXULSelectCntrlItemEl.h"
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#include "nsIDOMXULRelatedElement.h"
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using namespace mozilla::a11y;
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////////////////////////////////////////////////////////////////////////////////
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// XULTabAccessible
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////////////////////////////////////////////////////////////////////////////////
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XULTabAccessible::
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XULTabAccessible(nsIContent* aContent, DocAccessible* aDoc) :
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AccessibleWrap(aContent, aDoc)
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{
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULTabAccessible: Accessible
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uint8_t
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XULTabAccessible::ActionCount()
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{
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return 1;
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}
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void
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XULTabAccessible::ActionNameAt(uint8_t aIndex, nsAString& aName)
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{
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if (aIndex == eAction_Switch)
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aName.AssignLiteral("switch");
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}
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bool
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XULTabAccessible::DoAction(uint8_t index)
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{
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if (index == eAction_Switch) {
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nsCOMPtr<nsIDOMXULElement> tab(do_QueryInterface(mContent));
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if (tab) {
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tab->Click();
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return true;
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}
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}
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return false;
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULTabAccessible: Accessible
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role
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XULTabAccessible::NativeRole()
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{
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return roles::PAGETAB;
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}
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uint64_t
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XULTabAccessible::NativeState()
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{
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// Possible states: focused, focusable, unavailable(disabled), offscreen.
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// get focus and disable status from base class
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uint64_t state = AccessibleWrap::NativeState();
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// Check whether the tab is selected and/or pinned
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nsCOMPtr<nsIDOMXULSelectControlItemElement> tab(do_QueryInterface(mContent));
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if (tab) {
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bool selected = false;
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if (NS_SUCCEEDED(tab->GetSelected(&selected)) && selected)
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state |= states::SELECTED;
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if (mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::pinned,
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nsGkAtoms::_true, eCaseMatters))
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state |= states::PINNED;
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}
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return state;
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}
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uint64_t
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XULTabAccessible::NativeInteractiveState() const
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{
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uint64_t state = Accessible::NativeInteractiveState();
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return (state & states::UNAVAILABLE) ? state : state | states::SELECTABLE;
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}
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Relation
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XULTabAccessible::RelationByType(RelationType aType)
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{
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Relation rel = AccessibleWrap::RelationByType(aType);
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if (aType != RelationType::LABEL_FOR)
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return rel;
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// Expose 'LABEL_FOR' relation on tab accessible for tabpanel accessible.
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nsCOMPtr<nsIDOMXULRelatedElement> tabsElm =
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do_QueryInterface(mContent->GetParent());
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if (!tabsElm)
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return rel;
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nsCOMPtr<nsIDOMNode> domNode(DOMNode());
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nsCOMPtr<nsIDOMNode> tabpanelNode;
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tabsElm->GetRelatedElement(domNode, getter_AddRefs(tabpanelNode));
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if (!tabpanelNode)
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return rel;
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nsCOMPtr<nsIContent> tabpanelContent(do_QueryInterface(tabpanelNode));
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rel.AppendTarget(mDoc, tabpanelContent);
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return rel;
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULTabsAccessible
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////////////////////////////////////////////////////////////////////////////////
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XULTabsAccessible::
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XULTabsAccessible(nsIContent* aContent, DocAccessible* aDoc) :
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XULSelectControlAccessible(aContent, aDoc)
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{
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}
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role
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XULTabsAccessible::NativeRole()
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{
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return roles::PAGETABLIST;
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}
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uint8_t
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XULTabsAccessible::ActionCount()
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{
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return 0;
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}
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void
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XULTabsAccessible::Value(nsString& aValue)
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{
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aValue.Truncate();
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}
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ENameValueFlag
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XULTabsAccessible::NativeName(nsString& aName)
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{
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// no name
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return eNameOK;
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULTabpanelsAccessible
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////////////////////////////////////////////////////////////////////////////////
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role
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XULTabpanelsAccessible::NativeRole()
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{
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return roles::PANE;
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULTabpanelAccessible
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////////////////////////////////////////////////////////////////////////////////
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XULTabpanelAccessible::
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XULTabpanelAccessible(nsIContent* aContent, DocAccessible* aDoc) :
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AccessibleWrap(aContent, aDoc)
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{
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}
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role
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XULTabpanelAccessible::NativeRole()
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{
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return roles::PROPERTYPAGE;
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}
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Relation
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XULTabpanelAccessible::RelationByType(RelationType aType)
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{
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Relation rel = AccessibleWrap::RelationByType(aType);
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if (aType != RelationType::LABELLED_BY)
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return rel;
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// Expose 'LABELLED_BY' relation on tabpanel accessible for tab accessible.
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nsCOMPtr<nsIDOMXULRelatedElement> tabpanelsElm =
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do_QueryInterface(mContent->GetParent());
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if (!tabpanelsElm)
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return rel;
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nsCOMPtr<nsIDOMNode> domNode(DOMNode());
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nsCOMPtr<nsIDOMNode> tabNode;
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tabpanelsElm->GetRelatedElement(domNode, getter_AddRefs(tabNode));
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if (!tabNode)
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return rel;
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nsCOMPtr<nsIContent> tabContent(do_QueryInterface(tabNode));
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rel.AppendTarget(mDoc, tabContent);
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return rel;
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}
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