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-rw-r--r--dom/html/HTMLSummaryElement.cpp118
1 files changed, 118 insertions, 0 deletions
diff --git a/dom/html/HTMLSummaryElement.cpp b/dom/html/HTMLSummaryElement.cpp
new file mode 100644
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+++ b/dom/html/HTMLSummaryElement.cpp
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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/dom/HTMLSummaryElement.h"
+
+#include "mozilla/dom/HTMLDetailsElement.h"
+#include "mozilla/dom/HTMLElementBinding.h"
+#include "mozilla/dom/HTMLUnknownElement.h"
+#include "mozilla/EventDispatcher.h"
+#include "mozilla/MouseEvents.h"
+#include "mozilla/Preferences.h"
+#include "mozilla/TextEvents.h"
+#include "nsFocusManager.h"
+
+NS_IMPL_NS_NEW_HTML_ELEMENT(Summary)
+
+namespace mozilla::dom {
+
+HTMLSummaryElement::~HTMLSummaryElement() = default;
+
+NS_IMPL_ELEMENT_CLONE(HTMLSummaryElement)
+
+nsresult HTMLSummaryElement::PostHandleEvent(EventChainPostVisitor& aVisitor) {
+ nsresult rv = NS_OK;
+ if (!aVisitor.mPresContext) {
+ return rv;
+ }
+
+ if (aVisitor.mEventStatus == nsEventStatus_eConsumeNoDefault) {
+ return rv;
+ }
+
+ if (!IsMainSummary()) {
+ return rv;
+ }
+
+ WidgetEvent* const event = aVisitor.mEvent;
+ nsCOMPtr<Element> target =
+ do_QueryInterface(event->GetOriginalDOMEventTarget());
+ if (nsContentUtils::IsInInteractiveHTMLContent(target, this)) {
+ return NS_OK;
+ }
+
+ if (event->HasMouseEventMessage()) {
+ WidgetMouseEvent* mouseEvent = event->AsMouseEvent();
+
+ if (mouseEvent->IsLeftClickEvent()) {
+ RefPtr<HTMLDetailsElement> details = GetDetails();
+ MOZ_ASSERT(details,
+ "Expected to find details since this is the main summary!");
+
+ // When dispatching a synthesized mouse click event to a details element
+ // with 'display: none', both Chrome and Safari do not toggle the 'open'
+ // attribute. We had tried to be compatible with this behavior, but found
+ // more inconsistency in test cases in bug 1245424. So we stop doing that.
+ details->ToggleOpen();
+ aVisitor.mEventStatus = nsEventStatus_eConsumeNoDefault;
+ return NS_OK;
+ }
+ } // event->HasMouseEventMessage()
+
+ if (event->HasKeyEventMessage() && event->IsTrusted()) {
+ HandleKeyboardActivation(aVisitor);
+ }
+ return rv;
+}
+
+bool HTMLSummaryElement::IsHTMLFocusable(bool aWithMouse, bool* aIsFocusable,
+ int32_t* aTabIndex) {
+ bool disallowOverridingFocusability = nsGenericHTMLElement::IsHTMLFocusable(
+ aWithMouse, aIsFocusable, aTabIndex);
+
+ if (disallowOverridingFocusability || !IsMainSummary()) {
+ return disallowOverridingFocusability;
+ }
+
+ // The main summary element is focusable.
+ *aIsFocusable = true;
+
+ // Give a chance to allow the subclass to override aIsFocusable.
+ return false;
+}
+
+int32_t HTMLSummaryElement::TabIndexDefault() {
+ // Make the main summary be able to navigate via tab, and be focusable.
+ // See nsGenericHTMLElement::IsHTMLFocusable().
+ return IsMainSummary() ? 0 : nsGenericHTMLElement::TabIndexDefault();
+}
+
+bool HTMLSummaryElement::IsMainSummary() const {
+ HTMLDetailsElement* details = GetDetails();
+ if (!details) {
+ return false;
+ }
+
+ return details->GetFirstSummary() == this ||
+ GetContainingShadow() == details->GetShadowRoot();
+}
+
+HTMLDetailsElement* HTMLSummaryElement::GetDetails() const {
+ if (auto* details = HTMLDetailsElement::FromNodeOrNull(GetParent())) {
+ return details;
+ }
+ if (!HasBeenInUAWidget()) {
+ return nullptr;
+ }
+ return HTMLDetailsElement::FromNodeOrNull(GetContainingShadowHost());
+}
+
+JSObject* HTMLSummaryElement::WrapNode(JSContext* aCx,
+ JS::Handle<JSObject*> aGivenProto) {
+ return HTMLElement_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+} // namespace mozilla::dom