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-rw-r--r--dom/html/HTMLLegendElement.cpp140
1 files changed, 140 insertions, 0 deletions
diff --git a/dom/html/HTMLLegendElement.cpp b/dom/html/HTMLLegendElement.cpp
new file mode 100644
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+++ b/dom/html/HTMLLegendElement.cpp
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 "mozilla/dom/HTMLLegendElement.h"
+#include "mozilla/dom/ElementBinding.h"
+#include "mozilla/dom/HTMLLegendElementBinding.h"
+#include "nsFocusManager.h"
+#include "nsIFrame.h"
+
+NS_IMPL_NS_NEW_HTML_ELEMENT(Legend)
+
+namespace mozilla::dom {
+
+HTMLLegendElement::~HTMLLegendElement() = default;
+
+NS_IMPL_ELEMENT_CLONE(HTMLLegendElement)
+
+nsIContent* HTMLLegendElement::GetFieldSet() const {
+ nsIContent* parent = GetParent();
+
+ if (parent && parent->IsHTMLElement(nsGkAtoms::fieldset)) {
+ return parent;
+ }
+
+ return nullptr;
+}
+
+bool HTMLLegendElement::ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
+ const nsAString& aValue,
+ nsIPrincipal* aMaybeScriptedPrincipal,
+ nsAttrValue& aResult) {
+ // this contains center, because IE4 does
+ static const nsAttrValue::EnumTable kAlignTable[] = {
+ {"left", LegendAlignValue::Left},
+ {"right", LegendAlignValue::Right},
+ {"center", LegendAlignValue::Center},
+ {nullptr, 0}};
+
+ if (aAttribute == nsGkAtoms::align && aNamespaceID == kNameSpaceID_None) {
+ return aResult.ParseEnumValue(aValue, kAlignTable, false);
+ }
+
+ return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
+ aMaybeScriptedPrincipal, aResult);
+}
+
+nsChangeHint HTMLLegendElement::GetAttributeChangeHint(const nsAtom* aAttribute,
+ int32_t aModType) const {
+ nsChangeHint retval =
+ nsGenericHTMLElement::GetAttributeChangeHint(aAttribute, aModType);
+ if (aAttribute == nsGkAtoms::align) {
+ retval |= NS_STYLE_HINT_REFLOW;
+ }
+ return retval;
+}
+
+nsresult HTMLLegendElement::BindToTree(BindContext& aContext,
+ nsINode& aParent) {
+ return nsGenericHTMLElement::BindToTree(aContext, aParent);
+}
+
+void HTMLLegendElement::UnbindFromTree(bool aNullParent) {
+ nsGenericHTMLElement::UnbindFromTree(aNullParent);
+}
+
+void HTMLLegendElement::Focus(const FocusOptions& aOptions,
+ const CallerType aCallerType,
+ ErrorResult& aError) {
+ nsIFrame* frame = GetPrimaryFrame();
+ if (!frame) {
+ return;
+ }
+
+ if (frame->IsFocusable()) {
+ nsGenericHTMLElement::Focus(aOptions, aCallerType, aError);
+ return;
+ }
+
+ // If the legend isn't focusable, focus whatever is focusable following
+ // the legend instead, bug 81481.
+ nsFocusManager* fm = nsFocusManager::GetFocusManager();
+ if (!fm) {
+ return;
+ }
+
+ RefPtr<Element> result;
+ aError = fm->MoveFocus(nullptr, this, nsIFocusManager::MOVEFOCUS_FORWARD,
+ nsIFocusManager::FLAG_NOPARENTFRAME |
+ nsFocusManager::ProgrammaticFocusFlags(aOptions),
+ getter_AddRefs(result));
+}
+
+Result<bool, nsresult> HTMLLegendElement::PerformAccesskey(
+ bool aKeyCausesActivation, bool aIsTrustedEvent) {
+ FocusOptions options;
+ ErrorResult rv;
+
+ Focus(options, CallerType::System, rv);
+ if (rv.Failed()) {
+ return Err(rv.StealNSResult());
+ }
+
+ // XXXedgar, do we need to check whether the focus is really changed?
+ return true;
+}
+
+HTMLLegendElement::LegendAlignValue HTMLLegendElement::LogicalAlign(
+ mozilla::WritingMode aCBWM) const {
+ const nsAttrValue* attr = GetParsedAttr(nsGkAtoms::align);
+ if (!attr || attr->Type() != nsAttrValue::eEnum) {
+ return LegendAlignValue::InlineStart;
+ }
+
+ auto value = static_cast<LegendAlignValue>(attr->GetEnumValue());
+ switch (value) {
+ case LegendAlignValue::Left:
+ return aCBWM.IsBidiLTR() ? LegendAlignValue::InlineStart
+ : LegendAlignValue::InlineEnd;
+ case LegendAlignValue::Right:
+ return aCBWM.IsBidiLTR() ? LegendAlignValue::InlineEnd
+ : LegendAlignValue::InlineStart;
+ default:
+ return value;
+ }
+}
+
+HTMLFormElement* HTMLLegendElement::GetForm() const {
+ nsCOMPtr<nsIFormControl> fieldsetControl = do_QueryInterface(GetFieldSet());
+ return fieldsetControl ? fieldsetControl->GetForm() : nullptr;
+}
+
+JSObject* HTMLLegendElement::WrapNode(JSContext* aCx,
+ JS::Handle<JSObject*> aGivenProto) {
+ return HTMLLegendElement_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+} // namespace mozilla::dom