The Tor Browser / annotate

accessible/src/xul/XULTabAccessible.cpp@97036ab72558 (annotated)

accessible/src/xul/XULTabAccessible.cpp

Tue, 06 Jan 2015 21:39:09 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 06 Jan 2015 21:39:09 +0100
branch
TOR_BUG_9701
changeset 8
97036ab72558
permissions
-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

michael@0 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0 2 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 #include "XULTabAccessible.h"
michael@0 7
michael@0 8 #include "nsAccUtils.h"
michael@0 9 #include "Relation.h"
michael@0 10 #include "Role.h"
michael@0 11 #include "States.h"
michael@0 12
michael@0 13 // NOTE: alphabetically ordered
michael@0 14 #include "nsIAccessibleRelation.h"
michael@0 15 #include "nsIDocument.h"
michael@0 16 #include "nsIDOMXULSelectCntrlEl.h"
michael@0 17 #include "nsIDOMXULSelectCntrlItemEl.h"
michael@0 18 #include "nsIDOMXULRelatedElement.h"
michael@0 19
michael@0 20 using namespace mozilla::a11y;
michael@0 21
michael@0 22 ////////////////////////////////////////////////////////////////////////////////
michael@0 23 // XULTabAccessible
michael@0 24 ////////////////////////////////////////////////////////////////////////////////
michael@0 25
michael@0 26 XULTabAccessible::
michael@0 27 XULTabAccessible(nsIContent* aContent, DocAccessible* aDoc) :
michael@0 28 AccessibleWrap(aContent, aDoc)
michael@0 29 {
michael@0 30 }
michael@0 31
michael@0 32 ////////////////////////////////////////////////////////////////////////////////
michael@0 33 // XULTabAccessible: nsIAccessible
michael@0 34
michael@0 35 uint8_t
michael@0 36 XULTabAccessible::ActionCount()
michael@0 37 {
michael@0 38 return 1;
michael@0 39 }
michael@0 40
michael@0 41 /** Return the name of our only action */
michael@0 42 NS_IMETHODIMP
michael@0 43 XULTabAccessible::GetActionName(uint8_t aIndex, nsAString& aName)
michael@0 44 {
michael@0 45 if (aIndex == eAction_Switch) {
michael@0 46 aName.AssignLiteral("switch");
michael@0 47 return NS_OK;
michael@0 48 }
michael@0 49 return NS_ERROR_INVALID_ARG;
michael@0 50 }
michael@0 51
michael@0 52 /** Tell the tab to do its action */
michael@0 53 NS_IMETHODIMP
michael@0 54 XULTabAccessible::DoAction(uint8_t index)
michael@0 55 {
michael@0 56 if (index == eAction_Switch) {
michael@0 57 nsCOMPtr<nsIDOMXULElement> tab(do_QueryInterface(mContent));
michael@0 58 if ( tab )
michael@0 59 {
michael@0 60 tab->Click();
michael@0 61 return NS_OK;
michael@0 62 }
michael@0 63 return NS_ERROR_FAILURE;
michael@0 64 }
michael@0 65 return NS_ERROR_INVALID_ARG;
michael@0 66 }
michael@0 67
michael@0 68 ////////////////////////////////////////////////////////////////////////////////
michael@0 69 // XULTabAccessible: Accessible
michael@0 70
michael@0 71 role
michael@0 72 XULTabAccessible::NativeRole()
michael@0 73 {
michael@0 74 return roles::PAGETAB;
michael@0 75 }
michael@0 76
michael@0 77 uint64_t
michael@0 78 XULTabAccessible::NativeState()
michael@0 79 {
michael@0 80 // Possible states: focused, focusable, unavailable(disabled), offscreen.
michael@0 81
michael@0 82 // get focus and disable status from base class
michael@0 83 uint64_t state = AccessibleWrap::NativeState();
michael@0 84
michael@0 85 // Check whether the tab is selected and/or pinned
michael@0 86 nsCOMPtr<nsIDOMXULSelectControlItemElement> tab(do_QueryInterface(mContent));
michael@0 87 if (tab) {
michael@0 88 bool selected = false;
michael@0 89 if (NS_SUCCEEDED(tab->GetSelected(&selected)) && selected)
michael@0 90 state |= states::SELECTED;
michael@0 91
michael@0 92 if (mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::pinned,
michael@0 93 nsGkAtoms::_true, eCaseMatters))
michael@0 94 state |= states::PINNED;
michael@0 95
michael@0 96 }
michael@0 97
michael@0 98 return state;
michael@0 99 }
michael@0 100
michael@0 101 uint64_t
michael@0 102 XULTabAccessible::NativeInteractiveState() const
michael@0 103 {
michael@0 104 uint64_t state = Accessible::NativeInteractiveState();
michael@0 105 return (state & states::UNAVAILABLE) ? state : state | states::SELECTABLE;
michael@0 106 }
michael@0 107
michael@0 108 // nsIAccessible
michael@0 109 Relation
michael@0 110 XULTabAccessible::RelationByType(RelationType aType)
michael@0 111 {
michael@0 112 Relation rel = AccessibleWrap::RelationByType(aType);
michael@0 113 if (aType != RelationType::LABEL_FOR)
michael@0 114 return rel;
michael@0 115
michael@0 116 // Expose 'LABEL_FOR' relation on tab accessible for tabpanel accessible.
michael@0 117 nsCOMPtr<nsIDOMXULRelatedElement> tabsElm =
michael@0 118 do_QueryInterface(mContent->GetParent());
michael@0 119 if (!tabsElm)
michael@0 120 return rel;
michael@0 121
michael@0 122 nsCOMPtr<nsIDOMNode> domNode(DOMNode());
michael@0 123 nsCOMPtr<nsIDOMNode> tabpanelNode;
michael@0 124 tabsElm->GetRelatedElement(domNode, getter_AddRefs(tabpanelNode));
michael@0 125 if (!tabpanelNode)
michael@0 126 return rel;
michael@0 127
michael@0 128 nsCOMPtr<nsIContent> tabpanelContent(do_QueryInterface(tabpanelNode));
michael@0 129 rel.AppendTarget(mDoc, tabpanelContent);
michael@0 130 return rel;
michael@0 131 }
michael@0 132
michael@0 133
michael@0 134 ////////////////////////////////////////////////////////////////////////////////
michael@0 135 // XULTabsAccessible
michael@0 136 ////////////////////////////////////////////////////////////////////////////////
michael@0 137
michael@0 138 XULTabsAccessible::
michael@0 139 XULTabsAccessible(nsIContent* aContent, DocAccessible* aDoc) :
michael@0 140 XULSelectControlAccessible(aContent, aDoc)
michael@0 141 {
michael@0 142 }
michael@0 143
michael@0 144 role
michael@0 145 XULTabsAccessible::NativeRole()
michael@0 146 {
michael@0 147 return roles::PAGETABLIST;
michael@0 148 }
michael@0 149
michael@0 150 uint8_t
michael@0 151 XULTabsAccessible::ActionCount()
michael@0 152 {
michael@0 153 return 0;
michael@0 154 }
michael@0 155
michael@0 156 void
michael@0 157 XULTabsAccessible::Value(nsString& aValue)
michael@0 158 {
michael@0 159 aValue.Truncate();
michael@0 160 }
michael@0 161
michael@0 162 ENameValueFlag
michael@0 163 XULTabsAccessible::NativeName(nsString& aName)
michael@0 164 {
michael@0 165 // no name
michael@0 166 return eNameOK;
michael@0 167 }
michael@0 168
michael@0 169
michael@0 170 ////////////////////////////////////////////////////////////////////////////////
michael@0 171 // XULTabpanelsAccessible
michael@0 172 ////////////////////////////////////////////////////////////////////////////////
michael@0 173
michael@0 174 role
michael@0 175 XULTabpanelsAccessible::NativeRole()
michael@0 176 {
michael@0 177 return roles::PANE;
michael@0 178 }
michael@0 179
michael@0 180 ////////////////////////////////////////////////////////////////////////////////
michael@0 181 // XULTabpanelAccessible
michael@0 182 ////////////////////////////////////////////////////////////////////////////////
michael@0 183
michael@0 184 XULTabpanelAccessible::
michael@0 185 XULTabpanelAccessible(nsIContent* aContent, DocAccessible* aDoc) :
michael@0 186 AccessibleWrap(aContent, aDoc)
michael@0 187 {
michael@0 188 }
michael@0 189
michael@0 190 role
michael@0 191 XULTabpanelAccessible::NativeRole()
michael@0 192 {
michael@0 193 return roles::PROPERTYPAGE;
michael@0 194 }
michael@0 195
michael@0 196 Relation
michael@0 197 XULTabpanelAccessible::RelationByType(RelationType aType)
michael@0 198 {
michael@0 199 Relation rel = AccessibleWrap::RelationByType(aType);
michael@0 200 if (aType != RelationType::LABELLED_BY)
michael@0 201 return rel;
michael@0 202
michael@0 203 // Expose 'LABELLED_BY' relation on tabpanel accessible for tab accessible.
michael@0 204 nsCOMPtr<nsIDOMXULRelatedElement> tabpanelsElm =
michael@0 205 do_QueryInterface(mContent->GetParent());
michael@0 206 if (!tabpanelsElm)
michael@0 207 return rel;
michael@0 208
michael@0 209 nsCOMPtr<nsIDOMNode> domNode(DOMNode());
michael@0 210 nsCOMPtr<nsIDOMNode> tabNode;
michael@0 211 tabpanelsElm->GetRelatedElement(domNode, getter_AddRefs(tabNode));
michael@0 212 if (!tabNode)
michael@0 213 return rel;
michael@0 214
michael@0 215 nsCOMPtr<nsIContent> tabContent(do_QueryInterface(tabNode));
michael@0 216 rel.AppendTarget(mDoc, tabContent);
michael@0 217 return rel;
michael@0 218 }

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