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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(aNodeInfo)
{
// We start off enabled
AddStatesSilently(NS_EVENT_STATE_ENABLED);
}
HTMLOptGroupElement::~HTMLOptGroupElement()
{
}
NS_IMPL_ISUPPORTS_INHERITED(HTMLOptGroupElement, nsGenericHTMLElement,
nsIDOMHTMLOptGroupElement)
NS_IMPL_ELEMENT_CLONE(HTMLOptGroupElement)
NS_IMPL_BOOL_ATTR(HTMLOptGroupElement, Disabled, disabled)
NS_IMPL_STRING_ATTR(HTMLOptGroupElement, Label, label)
nsresult
HTMLOptGroupElement::PreHandleEvent(EventChainPreVisitor& aVisitor)
{
aVisitor.mCanHandle = false;
// Do not process any DOM events if the element is disabled
// XXXsmaug This is not the right thing to do. But what is?
if (HasAttr(kNameSpaceID_None, nsGkAtoms::disabled)) {
return NS_OK;
}
nsIFrame* frame = GetPrimaryFrame();
if (frame) {
const nsStyleUserInterface* uiStyle = frame->StyleUserInterface();
if (uiStyle->mUserInput == StyleUserInput::None ||
uiStyle->mUserInput == StyleUserInput::Disabled) {
return NS_OK;
}
}
return nsGenericHTMLElement::PreHandleEvent(aVisitor);
}
Element*
HTMLOptGroupElement::GetSelect()
{
Element* parent = nsINode::GetParentElement();
if (!parent || !parent->IsHTMLElement(nsGkAtoms::select)) {
return nullptr;
}
return parent;
}
nsresult
HTMLOptGroupElement::InsertChildAt(nsIContent* aKid,
uint32_t aIndex,
bool aNotify)
{
SafeOptionListMutation safeMutation(GetSelect(), this, aKid, aIndex, aNotify);
nsresult rv = nsGenericHTMLElement::InsertChildAt(aKid, aIndex, aNotify);
if (NS_FAILED(rv)) {
safeMutation.MutationFailed();
}
return rv;
}
void
HTMLOptGroupElement::RemoveChildAt(uint32_t aIndex, bool aNotify)
{
SafeOptionListMutation safeMutation(GetSelect(), this, nullptr, aIndex,
aNotify);
nsGenericHTMLElement::RemoveChildAt(aIndex, aNotify);
}
nsresult
HTMLOptGroupElement::AfterSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
const nsAttrValue* aValue, bool aNotify)
{
if (aNameSpaceID == kNameSpaceID_None && aName == nsGkAtoms::disabled) {
// 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 (child->IsHTMLElement(nsGkAtoms::option)) {
// No need to call |IsElement()| because it's an HTML element.
child->AsElement()->UpdateState(true);
}
}
}
return nsGenericHTMLElement::AfterSetAttr(aNameSpaceID, aName, aValue,
aNotify);
}
EventStates
HTMLOptGroupElement::IntrinsicState() const
{
EventStates state = nsGenericHTMLElement::IntrinsicState();
if (HasAttr(kNameSpaceID_None, nsGkAtoms::disabled)) {
state |= NS_EVENT_STATE_DISABLED;
state &= ~NS_EVENT_STATE_ENABLED;
} else {
state &= ~NS_EVENT_STATE_DISABLED;
state |= NS_EVENT_STATE_ENABLED;
}
return state;
}
JSObject*
HTMLOptGroupElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
return HTMLOptGroupElementBinding::Wrap(aCx, this, aGivenProto);
}
} // namespace dom
} // namespace mozilla
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