1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/accessible/src/xul/XULTabAccessible.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,218 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "XULTabAccessible.h"
1.10 +
1.11 +#include "nsAccUtils.h"
1.12 +#include "Relation.h"
1.13 +#include "Role.h"
1.14 +#include "States.h"
1.15 +
1.16 +// NOTE: alphabetically ordered
1.17 +#include "nsIAccessibleRelation.h"
1.18 +#include "nsIDocument.h"
1.19 +#include "nsIDOMXULSelectCntrlEl.h"
1.20 +#include "nsIDOMXULSelectCntrlItemEl.h"
1.21 +#include "nsIDOMXULRelatedElement.h"
1.22 +
1.23 +using namespace mozilla::a11y;
1.24 +
1.25 +////////////////////////////////////////////////////////////////////////////////
1.26 +// XULTabAccessible
1.27 +////////////////////////////////////////////////////////////////////////////////
1.28 +
1.29 +XULTabAccessible::
1.30 + XULTabAccessible(nsIContent* aContent, DocAccessible* aDoc) :
1.31 + AccessibleWrap(aContent, aDoc)
1.32 +{
1.33 +}
1.34 +
1.35 +////////////////////////////////////////////////////////////////////////////////
1.36 +// XULTabAccessible: nsIAccessible
1.37 +
1.38 +uint8_t
1.39 +XULTabAccessible::ActionCount()
1.40 +{
1.41 + return 1;
1.42 +}
1.43 +
1.44 +/** Return the name of our only action */
1.45 +NS_IMETHODIMP
1.46 +XULTabAccessible::GetActionName(uint8_t aIndex, nsAString& aName)
1.47 +{
1.48 + if (aIndex == eAction_Switch) {
1.49 + aName.AssignLiteral("switch");
1.50 + return NS_OK;
1.51 + }
1.52 + return NS_ERROR_INVALID_ARG;
1.53 +}
1.54 +
1.55 +/** Tell the tab to do its action */
1.56 +NS_IMETHODIMP
1.57 +XULTabAccessible::DoAction(uint8_t index)
1.58 +{
1.59 + if (index == eAction_Switch) {
1.60 + nsCOMPtr<nsIDOMXULElement> tab(do_QueryInterface(mContent));
1.61 + if ( tab )
1.62 + {
1.63 + tab->Click();
1.64 + return NS_OK;
1.65 + }
1.66 + return NS_ERROR_FAILURE;
1.67 + }
1.68 + return NS_ERROR_INVALID_ARG;
1.69 +}
1.70 +
1.71 +////////////////////////////////////////////////////////////////////////////////
1.72 +// XULTabAccessible: Accessible
1.73 +
1.74 +role
1.75 +XULTabAccessible::NativeRole()
1.76 +{
1.77 + return roles::PAGETAB;
1.78 +}
1.79 +
1.80 +uint64_t
1.81 +XULTabAccessible::NativeState()
1.82 +{
1.83 + // Possible states: focused, focusable, unavailable(disabled), offscreen.
1.84 +
1.85 + // get focus and disable status from base class
1.86 + uint64_t state = AccessibleWrap::NativeState();
1.87 +
1.88 + // Check whether the tab is selected and/or pinned
1.89 + nsCOMPtr<nsIDOMXULSelectControlItemElement> tab(do_QueryInterface(mContent));
1.90 + if (tab) {
1.91 + bool selected = false;
1.92 + if (NS_SUCCEEDED(tab->GetSelected(&selected)) && selected)
1.93 + state |= states::SELECTED;
1.94 +
1.95 + if (mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::pinned,
1.96 + nsGkAtoms::_true, eCaseMatters))
1.97 + state |= states::PINNED;
1.98 +
1.99 + }
1.100 +
1.101 + return state;
1.102 +}
1.103 +
1.104 +uint64_t
1.105 +XULTabAccessible::NativeInteractiveState() const
1.106 +{
1.107 + uint64_t state = Accessible::NativeInteractiveState();
1.108 + return (state & states::UNAVAILABLE) ? state : state | states::SELECTABLE;
1.109 +}
1.110 +
1.111 +// nsIAccessible
1.112 +Relation
1.113 +XULTabAccessible::RelationByType(RelationType aType)
1.114 +{
1.115 + Relation rel = AccessibleWrap::RelationByType(aType);
1.116 + if (aType != RelationType::LABEL_FOR)
1.117 + return rel;
1.118 +
1.119 + // Expose 'LABEL_FOR' relation on tab accessible for tabpanel accessible.
1.120 + nsCOMPtr<nsIDOMXULRelatedElement> tabsElm =
1.121 + do_QueryInterface(mContent->GetParent());
1.122 + if (!tabsElm)
1.123 + return rel;
1.124 +
1.125 + nsCOMPtr<nsIDOMNode> domNode(DOMNode());
1.126 + nsCOMPtr<nsIDOMNode> tabpanelNode;
1.127 + tabsElm->GetRelatedElement(domNode, getter_AddRefs(tabpanelNode));
1.128 + if (!tabpanelNode)
1.129 + return rel;
1.130 +
1.131 + nsCOMPtr<nsIContent> tabpanelContent(do_QueryInterface(tabpanelNode));
1.132 + rel.AppendTarget(mDoc, tabpanelContent);
1.133 + return rel;
1.134 +}
1.135 +
1.136 +
1.137 +////////////////////////////////////////////////////////////////////////////////
1.138 +// XULTabsAccessible
1.139 +////////////////////////////////////////////////////////////////////////////////
1.140 +
1.141 +XULTabsAccessible::
1.142 + XULTabsAccessible(nsIContent* aContent, DocAccessible* aDoc) :
1.143 + XULSelectControlAccessible(aContent, aDoc)
1.144 +{
1.145 +}
1.146 +
1.147 +role
1.148 +XULTabsAccessible::NativeRole()
1.149 +{
1.150 + return roles::PAGETABLIST;
1.151 +}
1.152 +
1.153 +uint8_t
1.154 +XULTabsAccessible::ActionCount()
1.155 +{
1.156 + return 0;
1.157 +}
1.158 +
1.159 +void
1.160 +XULTabsAccessible::Value(nsString& aValue)
1.161 +{
1.162 + aValue.Truncate();
1.163 +}
1.164 +
1.165 +ENameValueFlag
1.166 +XULTabsAccessible::NativeName(nsString& aName)
1.167 +{
1.168 + // no name
1.169 + return eNameOK;
1.170 +}
1.171 +
1.172 +
1.173 +////////////////////////////////////////////////////////////////////////////////
1.174 +// XULTabpanelsAccessible
1.175 +////////////////////////////////////////////////////////////////////////////////
1.176 +
1.177 +role
1.178 +XULTabpanelsAccessible::NativeRole()
1.179 +{
1.180 + return roles::PANE;
1.181 +}
1.182 +
1.183 +////////////////////////////////////////////////////////////////////////////////
1.184 +// XULTabpanelAccessible
1.185 +////////////////////////////////////////////////////////////////////////////////
1.186 +
1.187 +XULTabpanelAccessible::
1.188 + XULTabpanelAccessible(nsIContent* aContent, DocAccessible* aDoc) :
1.189 + AccessibleWrap(aContent, aDoc)
1.190 +{
1.191 +}
1.192 +
1.193 +role
1.194 +XULTabpanelAccessible::NativeRole()
1.195 +{
1.196 + return roles::PROPERTYPAGE;
1.197 +}
1.198 +
1.199 +Relation
1.200 +XULTabpanelAccessible::RelationByType(RelationType aType)
1.201 +{
1.202 + Relation rel = AccessibleWrap::RelationByType(aType);
1.203 + if (aType != RelationType::LABELLED_BY)
1.204 + return rel;
1.205 +
1.206 + // Expose 'LABELLED_BY' relation on tabpanel accessible for tab accessible.
1.207 + nsCOMPtr<nsIDOMXULRelatedElement> tabpanelsElm =
1.208 + do_QueryInterface(mContent->GetParent());
1.209 + if (!tabpanelsElm)
1.210 + return rel;
1.211 +
1.212 + nsCOMPtr<nsIDOMNode> domNode(DOMNode());
1.213 + nsCOMPtr<nsIDOMNode> tabNode;
1.214 + tabpanelsElm->GetRelatedElement(domNode, getter_AddRefs(tabNode));
1.215 + if (!tabNode)
1.216 + return rel;
1.217 +
1.218 + nsCOMPtr<nsIContent> tabContent(do_QueryInterface(tabNode));
1.219 + rel.AppendTarget(mDoc, tabContent);
1.220 + return rel;
1.221 +}
