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c27a2129fd
Add a RAII helper to notify of multiple state changes together for these. The UpdateState CustomElementInternals calls that are getting removed are unnecessary (the state should be up-to-date by then, there's nothing changing there particularly). Same for the call in nsGenericHTMLFormElement::UnbindFromTree. ClearForm already does an state update. Differential Revision: https://phabricator.services.mozilla.com/D187033
137 lines
4.6 KiB
C++
137 lines
4.6 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/HTMLOutputElement.h"
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#include "mozAutoDocUpdate.h"
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#include "mozilla/dom/HTMLFormElement.h"
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#include "mozilla/dom/HTMLOutputElementBinding.h"
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#include "nsContentUtils.h"
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#include "nsDOMTokenList.h"
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NS_IMPL_NS_NEW_HTML_ELEMENT_CHECK_PARSER(Output)
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namespace mozilla::dom {
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HTMLOutputElement::HTMLOutputElement(
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already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
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FromParser aFromParser)
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: nsGenericHTMLFormControlElement(std::move(aNodeInfo),
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FormControlType::Output),
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mValueModeFlag(eModeDefault),
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mIsDoneAddingChildren(!aFromParser) {
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AddMutationObserver(this);
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// <output> is always barred from constraint validation since it is not a
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// submittable element.
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SetBarredFromConstraintValidation(true);
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}
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HTMLOutputElement::~HTMLOutputElement() = default;
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NS_IMPL_CYCLE_COLLECTION_INHERITED(HTMLOutputElement,
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nsGenericHTMLFormControlElement, mValidity,
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mTokenList)
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NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED(HTMLOutputElement,
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nsGenericHTMLFormControlElement,
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nsIMutationObserver,
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nsIConstraintValidation)
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NS_IMPL_ELEMENT_CLONE(HTMLOutputElement)
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void HTMLOutputElement::SetCustomValidity(const nsAString& aError) {
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ConstraintValidation::SetCustomValidity(aError);
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}
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NS_IMETHODIMP
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HTMLOutputElement::Reset() {
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mValueModeFlag = eModeDefault;
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// We can't pass mDefaultValue, because it'll be truncated when
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// the element's descendants are changed, so pass a copy instead.
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const nsAutoString currentDefaultValue(mDefaultValue);
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return nsContentUtils::SetNodeTextContent(this, currentDefaultValue, true);
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}
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bool HTMLOutputElement::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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if (aNamespaceID == kNameSpaceID_None) {
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if (aAttribute == nsGkAtoms::_for) {
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aResult.ParseAtomArray(aValue);
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return true;
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}
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}
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return nsGenericHTMLFormControlElement::ParseAttribute(
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aNamespaceID, aAttribute, aValue, aMaybeScriptedPrincipal, aResult);
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}
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void HTMLOutputElement::DoneAddingChildren(bool aHaveNotified) {
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mIsDoneAddingChildren = true;
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// We should update DefaultValue, after parsing is done.
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DescendantsChanged();
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}
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void HTMLOutputElement::GetValue(nsAString& aValue) const {
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nsContentUtils::GetNodeTextContent(this, true, aValue);
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}
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void HTMLOutputElement::SetValue(const nsAString& aValue, ErrorResult& aRv) {
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mValueModeFlag = eModeValue;
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aRv = nsContentUtils::SetNodeTextContent(this, aValue, true);
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}
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void HTMLOutputElement::SetDefaultValue(const nsAString& aDefaultValue,
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ErrorResult& aRv) {
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mDefaultValue = aDefaultValue;
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if (mValueModeFlag == eModeDefault) {
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// We can't pass mDefaultValue, because it'll be truncated when
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// the element's descendants are changed.
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aRv = nsContentUtils::SetNodeTextContent(this, aDefaultValue, true);
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}
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}
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nsDOMTokenList* HTMLOutputElement::HtmlFor() {
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if (!mTokenList) {
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mTokenList = new nsDOMTokenList(this, nsGkAtoms::_for);
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}
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return mTokenList;
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}
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void HTMLOutputElement::DescendantsChanged() {
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if (mIsDoneAddingChildren && mValueModeFlag == eModeDefault) {
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nsContentUtils::GetNodeTextContent(this, true, mDefaultValue);
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}
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}
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// nsIMutationObserver
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void HTMLOutputElement::CharacterDataChanged(nsIContent* aContent,
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const CharacterDataChangeInfo&) {
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DescendantsChanged();
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}
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void HTMLOutputElement::ContentAppended(nsIContent* aFirstNewContent) {
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DescendantsChanged();
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}
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void HTMLOutputElement::ContentInserted(nsIContent* aChild) {
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DescendantsChanged();
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}
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void HTMLOutputElement::ContentRemoved(nsIContent* aChild,
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nsIContent* aPreviousSibling) {
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DescendantsChanged();
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}
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JSObject* HTMLOutputElement::WrapNode(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return HTMLOutputElement_Binding::Wrap(aCx, this, aGivenProto);
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}
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} // namespace mozilla::dom
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