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-rw-r--r--dom/html/HTMLOutputElement.cpp154
1 files changed, 154 insertions, 0 deletions
diff --git a/dom/html/HTMLOutputElement.cpp b/dom/html/HTMLOutputElement.cpp
new file mode 100644
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--- /dev/null
+++ b/dom/html/HTMLOutputElement.cpp
@@ -0,0 +1,154 @@
+/* -*- 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/HTMLOutputElement.h"
+
+#include "mozAutoDocUpdate.h"
+#include "mozilla/dom/HTMLFormElement.h"
+#include "mozilla/dom/HTMLOutputElementBinding.h"
+#include "nsContentUtils.h"
+#include "nsDOMTokenList.h"
+
+NS_IMPL_NS_NEW_HTML_ELEMENT_CHECK_PARSER(Output)
+
+namespace mozilla::dom {
+
+HTMLOutputElement::HTMLOutputElement(
+ already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
+ FromParser aFromParser)
+ : nsGenericHTMLFormControlElement(std::move(aNodeInfo),
+ FormControlType::Output),
+ mValueModeFlag(eModeDefault),
+ mIsDoneAddingChildren(!aFromParser) {
+ AddMutationObserver(this);
+
+ // <output> is always barred from constraint validation since it is not a
+ // submittable element.
+ SetBarredFromConstraintValidation(true);
+}
+
+HTMLOutputElement::~HTMLOutputElement() = default;
+
+NS_IMPL_CYCLE_COLLECTION_INHERITED(HTMLOutputElement,
+ nsGenericHTMLFormControlElement, mValidity,
+ mTokenList)
+
+NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED(HTMLOutputElement,
+ nsGenericHTMLFormControlElement,
+ nsIMutationObserver,
+ nsIConstraintValidation)
+
+NS_IMPL_ELEMENT_CLONE(HTMLOutputElement)
+
+void HTMLOutputElement::SetCustomValidity(const nsAString& aError) {
+ ConstraintValidation::SetCustomValidity(aError);
+
+ UpdateState(true);
+}
+
+NS_IMETHODIMP
+HTMLOutputElement::Reset() {
+ mValueModeFlag = eModeDefault;
+ // We can't pass mDefaultValue, because it'll be truncated when
+ // the element's descendants are changed, so pass a copy instead.
+ const nsAutoString currentDefaultValue(mDefaultValue);
+ return nsContentUtils::SetNodeTextContent(this, currentDefaultValue, true);
+}
+
+bool HTMLOutputElement::ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
+ const nsAString& aValue,
+ nsIPrincipal* aMaybeScriptedPrincipal,
+ nsAttrValue& aResult) {
+ if (aNamespaceID == kNameSpaceID_None) {
+ if (aAttribute == nsGkAtoms::_for) {
+ aResult.ParseAtomArray(aValue);
+ return true;
+ }
+ }
+
+ return nsGenericHTMLFormControlElement::ParseAttribute(
+ aNamespaceID, aAttribute, aValue, aMaybeScriptedPrincipal, aResult);
+}
+
+void HTMLOutputElement::DoneAddingChildren(bool aHaveNotified) {
+ mIsDoneAddingChildren = true;
+ // We should update DefaultValue, after parsing is done.
+ DescendantsChanged();
+}
+
+nsresult HTMLOutputElement::BindToTree(BindContext& aContext,
+ nsINode& aParent) {
+ nsresult rv = nsGenericHTMLFormControlElement::BindToTree(aContext, aParent);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ // Unfortunately, we can actually end up having to change our state
+ // as a result of being bound to a tree even from the parser: we
+ // might end up a in a novalidate form, and unlike other form
+ // controls that on its own is enough to make change ui-valid state.
+ // So just go ahead and update our state now.
+ UpdateState(false);
+
+ return rv;
+}
+
+void HTMLOutputElement::GetValue(nsAString& aValue) const {
+ nsContentUtils::GetNodeTextContent(this, true, aValue);
+}
+
+void HTMLOutputElement::SetValue(const nsAString& aValue, ErrorResult& aRv) {
+ mValueModeFlag = eModeValue;
+ aRv = nsContentUtils::SetNodeTextContent(this, aValue, true);
+}
+
+void HTMLOutputElement::SetDefaultValue(const nsAString& aDefaultValue,
+ ErrorResult& aRv) {
+ mDefaultValue = aDefaultValue;
+ if (mValueModeFlag == eModeDefault) {
+ // We can't pass mDefaultValue, because it'll be truncated when
+ // the element's descendants are changed.
+ aRv = nsContentUtils::SetNodeTextContent(this, aDefaultValue, true);
+ }
+}
+
+nsDOMTokenList* HTMLOutputElement::HtmlFor() {
+ if (!mTokenList) {
+ mTokenList = new nsDOMTokenList(this, nsGkAtoms::_for);
+ }
+ return mTokenList;
+}
+
+void HTMLOutputElement::DescendantsChanged() {
+ if (mIsDoneAddingChildren && mValueModeFlag == eModeDefault) {
+ nsContentUtils::GetNodeTextContent(this, true, mDefaultValue);
+ }
+}
+
+// nsIMutationObserver
+
+void HTMLOutputElement::CharacterDataChanged(nsIContent* aContent,
+ const CharacterDataChangeInfo&) {
+ DescendantsChanged();
+}
+
+void HTMLOutputElement::ContentAppended(nsIContent* aFirstNewContent) {
+ DescendantsChanged();
+}
+
+void HTMLOutputElement::ContentInserted(nsIContent* aChild) {
+ DescendantsChanged();
+}
+
+void HTMLOutputElement::ContentRemoved(nsIContent* aChild,
+ nsIContent* aPreviousSibling) {
+ DescendantsChanged();
+}
+
+JSObject* HTMLOutputElement::WrapNode(JSContext* aCx,
+ JS::Handle<JSObject*> aGivenProto) {
+ return HTMLOutputElement_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+} // namespace mozilla::dom