gecko-dev/dom/html/HTMLDetailsElement.cpp
Boris Zbarsky f890715ffc Bug 656197 part 1. Remove the generic attr preparsing mechanism from BeforeSetAttr and just preparse class attributes directly in the one place that needs to do it. r=smaug
This removes the requirement that BeforeSetAttr comes before AttributeWillChange
(which needs the preparsed new value).

MozReview-Commit-ID: 87C6Mjc7ARh
2017-03-16 14:50:41 -04:00

85 lines
2.3 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/HTMLDetailsElement.h"
#include "mozilla/dom/HTMLDetailsElementBinding.h"
NS_IMPL_NS_NEW_HTML_ELEMENT(Details)
namespace mozilla {
namespace dom {
HTMLDetailsElement::~HTMLDetailsElement()
{
}
NS_IMPL_ELEMENT_CLONE(HTMLDetailsElement)
nsIContent*
HTMLDetailsElement::GetFirstSummary() const
{
// XXX: Bug 1245032: Might want to cache the first summary element.
for (nsIContent* child = nsINode::GetFirstChild();
child;
child = child->GetNextSibling()) {
if (child->IsHTMLElement(nsGkAtoms::summary)) {
return child;
}
}
return nullptr;
}
nsChangeHint
HTMLDetailsElement::GetAttributeChangeHint(const nsIAtom* aAttribute,
int32_t aModType) const
{
nsChangeHint hint =
nsGenericHTMLElement::GetAttributeChangeHint(aAttribute, aModType);
if (aAttribute == nsGkAtoms::open) {
hint |= nsChangeHint_ReconstructFrame;
}
return hint;
}
nsresult
HTMLDetailsElement::BeforeSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
const nsAttrValueOrString* aValue, bool aNotify)
{
if (aNameSpaceID == kNameSpaceID_None && aName == nsGkAtoms::open) {
bool setOpen = aValue != nullptr;
if (Open() != setOpen) {
if (mToggleEventDispatcher) {
mToggleEventDispatcher->Cancel();
}
// According to the html spec, a 'toggle' event is a simple event which
// does not bubble.
mToggleEventDispatcher =
new AsyncEventDispatcher(this, NS_LITERAL_STRING("toggle"), false);
mToggleEventDispatcher->PostDOMEvent();
}
}
return nsGenericHTMLElement::BeforeSetAttr(aNameSpaceID, aName, aValue,
aNotify);
}
void
HTMLDetailsElement::AsyncEventRunning(AsyncEventDispatcher* aEvent)
{
if (mToggleEventDispatcher == aEvent) {
mToggleEventDispatcher = nullptr;
}
}
JSObject*
HTMLDetailsElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
return HTMLDetailsElementBinding::Wrap(aCx, this, aGivenProto);
}
} // namespace dom
} // namespace mozilla