зеркало из https://github.com/mozilla/gecko-dev.git
100 строки
2.6 KiB
C++
100 строки
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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#include "mozilla/dom/HTMLSummaryElement.h"
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#include "mozilla/dom/HTMLDetailsElement.h"
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#include "mozilla/dom/HTMLElementBinding.h"
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#include "mozilla/dom/HTMLUnknownElement.h"
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#include "mozilla/MouseEvents.h"
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#include "mozilla/Preferences.h"
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// Expand NS_IMPL_NS_NEW_HTML_ELEMENT(Summary) to add pref check.
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nsGenericHTMLElement*
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NS_NewHTMLSummaryElement(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::HTMLSummaryElement(aNodeInfo);
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}
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namespace mozilla {
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namespace dom {
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HTMLSummaryElement::~HTMLSummaryElement()
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{
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}
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NS_IMPL_ELEMENT_CLONE(HTMLSummaryElement)
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nsresult
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HTMLSummaryElement::PostHandleEvent(EventChainPostVisitor& aVisitor)
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{
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nsresult rv = NS_OK;
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if (!aVisitor.mPresContext) {
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return rv;
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}
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if (aVisitor.mEventStatus == nsEventStatus_eConsumeNoDefault) {
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return rv;
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}
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auto toggleDetails = false;
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auto* event = aVisitor.mEvent;
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if (event->HasMouseEventMessage()) {
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auto* mouseEvent = event->AsMouseEvent();
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toggleDetails = mouseEvent->IsLeftClickEvent();
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}
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// Todo: Bug 634004: Implement toggle details by keyboard.
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if (!toggleDetails || !IsMainSummary()) {
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return rv;
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}
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auto* details = GetDetails();
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MOZ_ASSERT(details, "Expected to find details since this is the main summary!");
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// When dispatching a synthesized mouse click event to a details with
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// 'display: none', both Chrome and Safari do not toggle the 'open' attribute.
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// We follow them by checking whether details has a frame or not.
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if (details->GetPrimaryFrame()) {
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details->ToggleOpen();
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aVisitor.mEventStatus = nsEventStatus_eConsumeNoDefault;
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}
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return rv;
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}
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bool
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HTMLSummaryElement::IsMainSummary() const
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{
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HTMLDetailsElement* details = GetDetails();
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if (!details) {
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return false;
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}
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return details->GetFirstSummary() == this || IsRootOfNativeAnonymousSubtree();
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}
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HTMLDetailsElement*
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HTMLSummaryElement::GetDetails() const
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{
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return HTMLDetailsElement::FromContentOrNull(GetParent());
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}
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JSObject*
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HTMLSummaryElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return HTMLElementBinding::Wrap(aCx, this, aGivenProto);
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}
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} // namespace dom
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} // namespace mozilla
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