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/* -*- 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
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