зеркало из https://github.com/mozilla/gecko-dev.git
135 строки
4.4 KiB
C++
135 строки
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 "mozilla/dom/HTMLLegendElement.h"
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#include "mozilla/dom/ElementBinding.h"
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#include "mozilla/dom/HTMLLegendElementBinding.h"
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#include "nsFocusManager.h"
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#include "nsIFrame.h"
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NS_IMPL_NS_NEW_HTML_ELEMENT(Legend)
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namespace mozilla::dom {
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HTMLLegendElement::~HTMLLegendElement() = default;
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NS_IMPL_ELEMENT_CLONE(HTMLLegendElement)
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nsIContent* HTMLLegendElement::GetFieldSet() const {
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nsIContent* parent = GetParent();
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if (parent && parent->IsHTMLElement(nsGkAtoms::fieldset)) {
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return parent;
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}
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return nullptr;
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}
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bool HTMLLegendElement::ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
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const nsAString& aValue,
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nsIPrincipal* aMaybeScriptedPrincipal,
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nsAttrValue& aResult) {
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// this contains center, because IE4 does
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static const nsAttrValue::EnumTable kAlignTable[] = {
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{"left", LegendAlignValue::Left},
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{"right", LegendAlignValue::Right},
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{"center", LegendAlignValue::Center},
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{nullptr, 0}};
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if (aAttribute == nsGkAtoms::align && aNamespaceID == kNameSpaceID_None) {
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return aResult.ParseEnumValue(aValue, kAlignTable, false);
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}
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return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
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aMaybeScriptedPrincipal, aResult);
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}
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nsChangeHint HTMLLegendElement::GetAttributeChangeHint(const nsAtom* aAttribute,
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int32_t aModType) const {
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nsChangeHint retval =
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nsGenericHTMLElement::GetAttributeChangeHint(aAttribute, aModType);
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if (aAttribute == nsGkAtoms::align) {
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retval |= NS_STYLE_HINT_REFLOW;
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}
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return retval;
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}
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nsresult HTMLLegendElement::BindToTree(BindContext& aContext,
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nsINode& aParent) {
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return nsGenericHTMLElement::BindToTree(aContext, aParent);
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}
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void HTMLLegendElement::UnbindFromTree(bool aNullParent) {
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nsGenericHTMLElement::UnbindFromTree(aNullParent);
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}
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void HTMLLegendElement::Focus(const FocusOptions& aOptions,
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const CallerType aCallerType,
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ErrorResult& aError) {
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nsIFrame* frame = GetPrimaryFrame();
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if (!frame) {
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return;
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}
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if (frame->IsFocusable()) {
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nsGenericHTMLElement::Focus(aOptions, aCallerType, aError);
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return;
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}
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// If the legend isn't focusable, focus whatever is focusable following
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// the legend instead, bug 81481.
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nsFocusManager* fm = nsFocusManager::GetFocusManager();
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if (!fm) {
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return;
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}
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RefPtr<Element> result;
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aError = fm->MoveFocus(nullptr, this, nsIFocusManager::MOVEFOCUS_FORWARD,
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nsIFocusManager::FLAG_NOPARENTFRAME |
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nsFocusManager::ProgrammaticFocusFlags(aOptions),
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getter_AddRefs(result));
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}
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bool HTMLLegendElement::PerformAccesskey(bool aKeyCausesActivation,
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bool aIsTrustedEvent) {
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FocusOptions options;
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ErrorResult rv;
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Focus(options, CallerType::System, rv);
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return NS_SUCCEEDED(rv.StealNSResult());
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}
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HTMLLegendElement::LegendAlignValue HTMLLegendElement::LogicalAlign(
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mozilla::WritingMode aCBWM) const {
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const nsAttrValue* attr = GetParsedAttr(nsGkAtoms::align);
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if (!attr || attr->Type() != nsAttrValue::eEnum) {
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return LegendAlignValue::InlineStart;
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}
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auto value = static_cast<LegendAlignValue>(attr->GetEnumValue());
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switch (value) {
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case LegendAlignValue::Left:
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return aCBWM.IsBidiLTR() ? LegendAlignValue::InlineStart
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: LegendAlignValue::InlineEnd;
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case LegendAlignValue::Right:
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return aCBWM.IsBidiLTR() ? LegendAlignValue::InlineEnd
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: LegendAlignValue::InlineStart;
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default:
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return value;
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}
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}
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already_AddRefed<HTMLFormElement> HTMLLegendElement::GetForm() {
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return do_AddRef(GetFormElement());
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}
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JSObject* HTMLLegendElement::WrapNode(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return HTMLLegendElement_Binding::Wrap(aCx, this, aGivenProto);
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}
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} // namespace mozilla::dom
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