summaryrefslogtreecommitdiffstats
path: root/dom/html/HTMLSummaryElement.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'dom/html/HTMLSummaryElement.cpp')
-rw-r--r--dom/html/HTMLSummaryElement.cpp165
1 files changed, 165 insertions, 0 deletions
diff --git a/dom/html/HTMLSummaryElement.cpp b/dom/html/HTMLSummaryElement.cpp
new file mode 100644
index 000000000..ee3c07b20
--- /dev/null
+++ b/dom/html/HTMLSummaryElement.cpp
@@ -0,0 +1,165 @@
+/* -*- 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/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"
+
+// Expand NS_IMPL_NS_NEW_HTML_ELEMENT(Summary) to add pref check.
+nsGenericHTMLElement*
+NS_NewHTMLSummaryElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
+ mozilla::dom::FromParser aFromParser)
+{
+ if (!mozilla::dom::HTMLDetailsElement::IsDetailsEnabled()) {
+ return new mozilla::dom::HTMLUnknownElement(aNodeInfo);
+ }
+
+ return new mozilla::dom::HTMLSummaryElement(aNodeInfo);
+}
+
+namespace mozilla {
+namespace dom {
+
+HTMLSummaryElement::~HTMLSummaryElement()
+{
+}
+
+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;
+
+ 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()) {
+ WidgetKeyboardEvent* keyboardEvent = event->AsKeyboardEvent();
+ bool dispatchClick = false;
+
+ switch (event->mMessage) {
+ case eKeyPress:
+ if (keyboardEvent->mCharCode == ' ') {
+ // Consume 'space' key to prevent scrolling the page down.
+ aVisitor.mEventStatus = nsEventStatus_eConsumeNoDefault;
+ }
+
+ dispatchClick = keyboardEvent->mKeyCode == NS_VK_RETURN;
+ break;
+
+ case eKeyUp:
+ dispatchClick = keyboardEvent->mKeyCode == NS_VK_SPACE;
+ break;
+
+ default:
+ break;
+ }
+
+ if (dispatchClick) {
+ rv = DispatchSimulatedClick(this, event->mFlags.mIsTrusted,
+ aVisitor.mPresContext);
+ if (NS_SUCCEEDED(rv)) {
+ aVisitor.mEventStatus = nsEventStatus_eConsumeNoDefault;
+ }
+ }
+ } // event->HasKeyEventMessage()
+
+ return rv;
+}
+
+bool
+HTMLSummaryElement::IsHTMLFocusable(bool aWithMouse, bool* aIsFocusable,
+ int32_t* aTabIndex)
+{
+ bool disallowOverridingFocusability =
+ nsGenericHTMLElement::IsHTMLFocusable(aWithMouse, aIsFocusable, aTabIndex);
+
+ if (disallowOverridingFocusability || !IsMainSummary()) {
+ return disallowOverridingFocusability;
+ }
+
+#ifdef XP_MACOSX
+ // The parent does not have strong opinion about the focusability of this main
+ // summary element, but we'd like to override it when mouse clicking on Mac OS
+ // like other form elements.
+ *aIsFocusable = !aWithMouse || nsFocusManager::sMouseFocusesFormControl;
+#else
+ // The main summary element is focusable on other platforms.
+ *aIsFocusable = true;
+#endif
+
+ // 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 || IsRootOfNativeAnonymousSubtree();
+}
+
+HTMLDetailsElement*
+HTMLSummaryElement::GetDetails() const
+{
+ return HTMLDetailsElement::FromContentOrNull(GetParent());
+}
+
+JSObject*
+HTMLSummaryElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+{
+ return HTMLElementBinding::Wrap(aCx, this, aGivenProto);
+}
+
+} // namespace dom
+} // namespace mozilla