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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
91 lines
2.6 KiB
C++
91 lines
2.6 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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#ifndef mozilla_dom_HTMLDetailsElement_h
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#define mozilla_dom_HTMLDetailsElement_h
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#include "mozilla/AsyncEventDispatcher.h"
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#include "mozilla/Attributes.h"
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#include "nsGenericHTMLElement.h"
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namespace mozilla {
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namespace dom {
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// HTMLDetailsElement implements the <details> tag, which is used as a
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// disclosure widget from which the user can obtain additional information or
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// controls. Please see the spec for more information.
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// https://html.spec.whatwg.org/multipage/forms.html#the-details-element
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//
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class HTMLDetailsElement final : public nsGenericHTMLElement
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{
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public:
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using NodeInfo = mozilla::dom::NodeInfo;
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static bool IsDetailsEnabled();
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explicit HTMLDetailsElement(already_AddRefed<NodeInfo>& aNodeInfo)
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: nsGenericHTMLElement(aNodeInfo)
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{
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}
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NS_IMPL_FROMCONTENT_HTML_WITH_TAG(HTMLDetailsElement, details)
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nsIContent* GetFirstSummary() const;
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nsresult Clone(NodeInfo* aNodeInfo, nsINode** aResult) const override;
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nsChangeHint GetAttributeChangeHint(const nsIAtom* aAttribute,
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int32_t aModType) const override;
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nsresult BeforeSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
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nsAttrValueOrString* aValue, bool aNotify) override;
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// HTMLDetailsElement WebIDL
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bool Open() const { return GetBoolAttr(nsGkAtoms::open); }
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void SetOpen(bool aOpen, ErrorResult& aError)
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{
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SetHTMLBoolAttr(nsGkAtoms::open, aOpen, aError);
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}
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void ToggleOpen()
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{
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ErrorResult rv;
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SetOpen(!Open(), rv);
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rv.SuppressException();
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}
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protected:
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virtual ~HTMLDetailsElement();
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JSObject* WrapNode(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) override;
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class ToggleEventDispatcher final : public AsyncEventDispatcher
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{
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public:
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// According to the html spec, a 'toggle' event is a simple event which does
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// not bubble.
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explicit ToggleEventDispatcher(nsINode* aTarget)
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: AsyncEventDispatcher(aTarget, NS_LITERAL_STRING("toggle"), false)
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{
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}
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NS_IMETHOD Run() override
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{
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auto* details = static_cast<HTMLDetailsElement*>(mTarget.get());
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details->mToggleEventDispatcher = nullptr;
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return AsyncEventDispatcher::Run();
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}
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};
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RefPtr<ToggleEventDispatcher> mToggleEventDispatcher;
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};
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} // namespace dom
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} // namespace mozilla
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#endif /* mozilla_dom_HTMLDetailsElement_h */
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