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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/EventDispatcher.h"
#include "mozilla/EventStates.h"
#include "mozilla/dom/HTMLOptGroupElement.h"
#include "mozilla/dom/HTMLOptGroupElementBinding.h"
#include "mozilla/dom/HTMLSelectElement.h" // SafeOptionListMutation
#include "nsGkAtoms.h"
#include "nsStyleConsts.h"
#include "nsIFrame.h"
#include "nsIFormControlFrame.h"
NS_IMPL_NS_NEW_HTML_ELEMENT(OptGroup)
namespace mozilla {
namespace dom {
/**
* The implementation of <optgroup>
*/
HTMLOptGroupElement::HTMLOptGroupElement(
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
: nsGenericHTMLElement(std::move(aNodeInfo)) {
// We start off enabled
AddStatesSilently(NS_EVENT_STATE_ENABLED);
}
HTMLOptGroupElement::~HTMLOptGroupElement() = default;
NS_IMPL_ELEMENT_CLONE(HTMLOptGroupElement)
void HTMLOptGroupElement::GetEventTargetParent(EventChainPreVisitor& aVisitor) {
aVisitor.mCanHandle = false;
if (nsIFrame* frame = GetPrimaryFrame()) {
// FIXME(emilio): This poking at the style of the frame is broken unless we
// flush before every event handling, which we don't really want to.
if (frame->StyleUI()->mUserInput == StyleUserInput::None) {
return;
}
}
nsGenericHTMLElement::GetEventTargetParent(aVisitor);
}
Element* HTMLOptGroupElement::GetSelect() {
Element* parent = nsINode::GetParentElement();
if (!parent || !parent->IsHTMLElement(nsGkAtoms::select)) {
return nullptr;
}
return parent;
}
nsresult HTMLOptGroupElement::InsertChildBefore(nsIContent* aKid,
nsIContent* aBeforeThis,
bool aNotify) {
int32_t index = aBeforeThis ? ComputeIndexOf(aBeforeThis) : GetChildCount();
SafeOptionListMutation safeMutation(GetSelect(), this, aKid, index, aNotify);
nsresult rv =
nsGenericHTMLElement::InsertChildBefore(aKid, aBeforeThis, aNotify);
if (NS_FAILED(rv)) {
safeMutation.MutationFailed();
}
return rv;
}
void HTMLOptGroupElement::RemoveChildNode(nsIContent* aKid, bool aNotify) {
SafeOptionListMutation safeMutation(GetSelect(), this, nullptr,
ComputeIndexOf(aKid), aNotify);
nsGenericHTMLElement::RemoveChildNode(aKid, aNotify);
}
nsresult HTMLOptGroupElement::AfterSetAttr(int32_t aNameSpaceID, nsAtom* aName,
const nsAttrValue* aValue,
const nsAttrValue* aOldValue,
nsIPrincipal* aSubjectPrincipal,
bool aNotify) {
if (aNameSpaceID == kNameSpaceID_None && aName == nsGkAtoms::disabled) {
EventStates disabledStates;
if (aValue) {
disabledStates |= NS_EVENT_STATE_DISABLED;
} else {
disabledStates |= NS_EVENT_STATE_ENABLED;
}
EventStates oldDisabledStates = State() & DISABLED_STATES;
EventStates changedStates = disabledStates ^ oldDisabledStates;
if (!changedStates.IsEmpty()) {
ToggleStates(changedStates, aNotify);
// All our children <option> have their :disabled state depending on our
// disabled attribute. We should make sure their state is updated.
for (nsIContent* child = nsINode::GetFirstChild(); child;
child = child->GetNextSibling()) {
if (auto optElement = HTMLOptionElement::FromNode(child)) {
optElement->OptGroupDisabledChanged(true);
}
}
}
}
return nsGenericHTMLElement::AfterSetAttr(
aNameSpaceID, aName, aValue, aOldValue, aSubjectPrincipal, aNotify);
}
JSObject* HTMLOptGroupElement::WrapNode(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return HTMLOptGroupElement_Binding::Wrap(aCx, this, aGivenProto);
}
} // namespace dom
} // namespace mozilla