summaryrefslogtreecommitdiffstats
path: root/accessible/xul/XULElementAccessibles.cpp
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--accessible/xul/XULElementAccessibles.cpp205
1 files changed, 205 insertions, 0 deletions
diff --git a/accessible/xul/XULElementAccessibles.cpp b/accessible/xul/XULElementAccessibles.cpp
new file mode 100644
index 0000000000..c999ffa468
--- /dev/null
+++ b/accessible/xul/XULElementAccessibles.cpp
@@ -0,0 +1,205 @@
+/* -*- 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 "XULElementAccessibles.h"
+
+#include "LocalAccessible-inl.h"
+#include "BaseAccessibles.h"
+#include "DocAccessible-inl.h"
+#include "nsAccUtils.h"
+#include "nsCoreUtils.h"
+#include "nsTextEquivUtils.h"
+#include "Relation.h"
+#include "mozilla/a11y/Role.h"
+#include "States.h"
+#include "TextUpdater.h"
+
+#ifdef A11Y_LOG
+# include "Logging.h"
+#endif
+
+#include "nsNameSpaceManager.h"
+#include "nsNetUtil.h"
+#include "nsString.h"
+#include "nsXULElement.h"
+
+using namespace mozilla::a11y;
+
+////////////////////////////////////////////////////////////////////////////////
+// XULLabelAccessible
+////////////////////////////////////////////////////////////////////////////////
+
+XULLabelAccessible::XULLabelAccessible(nsIContent* aContent,
+ DocAccessible* aDoc)
+ : HyperTextAccessible(aContent, aDoc) {
+ mType = eXULLabelType;
+}
+
+void XULLabelAccessible::Shutdown() {
+ mValueTextLeaf = nullptr;
+ HyperTextAccessible::Shutdown();
+}
+
+void XULLabelAccessible::DispatchClickEvent(nsIContent* aContent,
+ uint32_t aActionIndex) const {
+ // Bug 1578140: For labels inside buttons, The base implementation of
+ // DispatchClickEvent doesn't fire a command event on the button.
+ RefPtr<nsXULElement> el = nsXULElement::FromNodeOrNull(aContent);
+ if (el) {
+ el->Click(mozilla::dom::CallerType::System);
+ }
+}
+
+ENameValueFlag XULLabelAccessible::NativeName(nsString& aName) const {
+ // if the value attr doesn't exist, the screen reader must get the accessible
+ // text from the accessible text interface or from the children
+ if (mValueTextLeaf) return mValueTextLeaf->Name(aName);
+
+ return LocalAccessible::NativeName(aName);
+}
+
+role XULLabelAccessible::NativeRole() const { return roles::LABEL; }
+
+uint64_t XULLabelAccessible::NativeState() const {
+ // Labels and description have read only state
+ // They are not focusable or selectable
+ return HyperTextAccessible::NativeState() | states::READONLY;
+}
+
+Relation XULLabelAccessible::RelationByType(RelationType aType) const {
+ Relation rel = HyperTextAccessible::RelationByType(aType);
+
+ // The label for xul:groupbox is generated from the first xul:label
+ if (aType == RelationType::LABEL_FOR) {
+ LocalAccessible* parent = LocalParent();
+ if (parent && parent->Role() == roles::GROUPING &&
+ parent->LocalChildAt(0) == this) {
+ nsIContent* parentContent = parent->GetContent();
+ if (parentContent && parentContent->IsXULElement(nsGkAtoms::groupbox)) {
+ rel.AppendTarget(parent);
+ }
+ }
+ }
+
+ return rel;
+}
+
+void XULLabelAccessible::UpdateLabelValue(const nsString& aValue) {
+#ifdef A11Y_LOG
+ if (logging::IsEnabled(logging::eText)) {
+ logging::MsgBegin("TEXT", "text may be changed (xul:label @value update)");
+ logging::Node("container", mContent);
+ logging::MsgEntry("old text '%s'",
+ NS_ConvertUTF16toUTF8(mValueTextLeaf->Text()).get());
+ logging::MsgEntry("new text: '%s'", NS_ConvertUTF16toUTF8(aValue).get());
+ logging::MsgEnd();
+ }
+#endif
+
+ TextUpdater::Run(mDoc, mValueTextLeaf, aValue);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// XULLabelTextLeafAccessible
+////////////////////////////////////////////////////////////////////////////////
+
+role XULLabelTextLeafAccessible::NativeRole() const { return roles::TEXT_LEAF; }
+
+uint64_t XULLabelTextLeafAccessible::NativeState() const {
+ return TextLeafAccessible::NativeState() | states::READONLY;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// XULTooltipAccessible
+////////////////////////////////////////////////////////////////////////////////
+
+XULTooltipAccessible::XULTooltipAccessible(nsIContent* aContent,
+ DocAccessible* aDoc)
+ : LeafAccessible(aContent, aDoc) {
+ mType = eXULTooltipType;
+}
+
+uint64_t XULTooltipAccessible::NativeState() const {
+ return LeafAccessible::NativeState() | states::READONLY;
+}
+
+role XULTooltipAccessible::NativeRole() const { return roles::TOOLTIP; }
+
+////////////////////////////////////////////////////////////////////////////////
+// XULLinkAccessible
+////////////////////////////////////////////////////////////////////////////////
+
+XULLinkAccessible::XULLinkAccessible(nsIContent* aContent, DocAccessible* aDoc)
+ : XULLabelAccessible(aContent, aDoc) {}
+
+XULLinkAccessible::~XULLinkAccessible() {}
+
+////////////////////////////////////////////////////////////////////////////////
+// XULLinkAccessible: LocalAccessible
+
+void XULLinkAccessible::Value(nsString& aValue) const {
+ aValue.Truncate();
+
+ mContent->AsElement()->GetAttr(nsGkAtoms::href, aValue);
+}
+
+ENameValueFlag XULLinkAccessible::NativeName(nsString& aName) const {
+ mContent->AsElement()->GetAttr(nsGkAtoms::value, aName);
+ if (!aName.IsEmpty()) return eNameOK;
+
+ nsTextEquivUtils::GetNameFromSubtree(this, aName);
+ return aName.IsEmpty() ? eNameOK : eNameFromSubtree;
+}
+
+role XULLinkAccessible::NativeRole() const { return roles::LINK; }
+
+uint64_t XULLinkAccessible::NativeLinkState() const { return states::LINKED; }
+
+bool XULLinkAccessible::HasPrimaryAction() const { return true; }
+
+void XULLinkAccessible::ActionNameAt(uint8_t aIndex, nsAString& aName) {
+ aName.Truncate();
+
+ if (aIndex == eAction_Jump) aName.AssignLiteral("jump");
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// XULLinkAccessible: HyperLinkAccessible
+
+bool XULLinkAccessible::IsLink() const {
+ // Expose HyperLinkAccessible unconditionally.
+ return true;
+}
+
+uint32_t XULLinkAccessible::StartOffset() {
+ // If XUL link accessible is not contained by hypertext accessible then
+ // start offset matches index in parent because the parent doesn't contains
+ // a text.
+ // XXX: accessible parent of XUL link accessible should be a hypertext
+ // accessible.
+ if (LocalAccessible::IsLink()) return LocalAccessible::StartOffset();
+ return IndexInParent();
+}
+
+uint32_t XULLinkAccessible::EndOffset() {
+ if (LocalAccessible::IsLink()) return LocalAccessible::EndOffset();
+ return IndexInParent() + 1;
+}
+
+already_AddRefed<nsIURI> XULLinkAccessible::AnchorURIAt(
+ uint32_t aAnchorIndex) const {
+ if (aAnchorIndex != 0) return nullptr;
+
+ nsAutoString href;
+ mContent->AsElement()->GetAttr(nsGkAtoms::href, href);
+
+ dom::Document* document = mContent->OwnerDoc();
+
+ nsCOMPtr<nsIURI> anchorURI;
+ NS_NewURI(getter_AddRefs(anchorURI), href,
+ document->GetDocumentCharacterSet(), mContent->GetBaseURI());
+
+ return anchorURI.forget();
+}