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b8972c7eb9
Add ontoggle event handler, and dispatch toggle events to the details element if the open attribute is added or changed. According to the spec, if a new toggle event has been queued, previous toggle events should be aborted. MozReview-Commit-ID: EN6Jf5hVHHD --HG-- extra : rebase_source : 35605e49950bb59a0eb6dca594c3ede465ff587d
101 lines
2.8 KiB
C++
101 lines
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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/HTMLDetailsElement.h"
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#include "mozilla/dom/HTMLDetailsElementBinding.h"
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#include "mozilla/dom/HTMLUnknownElement.h"
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#include "mozilla/Preferences.h"
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// Expand NS_IMPL_NS_NEW_HTML_ELEMENT(Details) to add pref check.
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nsGenericHTMLElement*
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NS_NewHTMLDetailsElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
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mozilla::dom::FromParser aFromParser)
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{
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if (!mozilla::dom::HTMLDetailsElement::IsDetailsEnabled()) {
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return new mozilla::dom::HTMLUnknownElement(aNodeInfo);
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}
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return new mozilla::dom::HTMLDetailsElement(aNodeInfo);
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}
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namespace mozilla {
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namespace dom {
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/* static */ bool
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HTMLDetailsElement::IsDetailsEnabled()
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{
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static bool isDetailsEnabled = false;
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static bool added = false;
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if (!added) {
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Preferences::AddBoolVarCache(&isDetailsEnabled,
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"dom.details_element.enabled");
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added = true;
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}
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return isDetailsEnabled;
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}
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HTMLDetailsElement::~HTMLDetailsElement()
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{
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}
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NS_IMPL_ELEMENT_CLONE(HTMLDetailsElement)
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nsIContent*
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HTMLDetailsElement::GetFirstSummary() const
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{
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// XXX: Bug 1245032: Might want to cache the first summary element.
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for (nsIContent* child = nsINode::GetFirstChild();
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child;
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child = child->GetNextSibling()) {
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if (child->IsHTMLElement(nsGkAtoms::summary)) {
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return child;
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}
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}
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return nullptr;
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}
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nsChangeHint
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HTMLDetailsElement::GetAttributeChangeHint(const nsIAtom* aAttribute,
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int32_t aModType) const
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{
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nsChangeHint hint =
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nsGenericHTMLElement::GetAttributeChangeHint(aAttribute, aModType);
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if (aAttribute == nsGkAtoms::open) {
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NS_UpdateHint(hint, nsChangeHint_ReconstructFrame);
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}
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return hint;
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}
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nsresult
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HTMLDetailsElement::BeforeSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
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nsAttrValueOrString* aValue, bool aNotify)
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{
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if (aNameSpaceID == kNameSpaceID_None && aName == nsGkAtoms::open) {
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bool setOpen = aValue != nullptr;
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if (Open() != setOpen) {
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if (mToggleEventDispatcher) {
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mToggleEventDispatcher->Cancel();
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}
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mToggleEventDispatcher = new ToggleEventDispatcher(this);
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mToggleEventDispatcher->PostDOMEvent();
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}
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}
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return nsGenericHTMLElement::BeforeSetAttr(aNameSpaceID, aName, aValue,
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aNotify);
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}
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JSObject*
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HTMLDetailsElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return HTMLDetailsElementBinding::Wrap(aCx, this, aGivenProto);
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}
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} // namespace dom
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} // namespace mozilla
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