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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 "XULMenuBarElement.h"
#include "MenuBarListener.h"
#include "XULButtonElement.h"
#include "nsXULPopupManager.h"
#include "mozilla/Assertions.h"
#include "mozilla/dom/BindContext.h"
#include "mozilla/AsyncEventDispatcher.h"
#include "mozilla/Try.h"
namespace mozilla::dom {
NS_IMPL_CYCLE_COLLECTION_CLASS(XULMenuBarElement)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(XULMenuBarElement,
XULMenuParentElement)
if (tmp->mListener) {
tmp->mListener->Detach();
tmp->mListener = nullptr;
}
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(XULMenuBarElement,
XULMenuParentElement)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mListener)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED_0(XULMenuBarElement,
XULMenuParentElement)
XULMenuBarElement::XULMenuBarElement(
already_AddRefed<class NodeInfo>&& aNodeInfo)
: XULMenuParentElement(std::move(aNodeInfo)) {}
XULMenuBarElement::~XULMenuBarElement() { MOZ_DIAGNOSTIC_ASSERT(!mListener); }
void XULMenuBarElement::SetActive(bool aActiveFlag) {
// If the activity is not changed, there is nothing to do.
if (mIsActive == aActiveFlag) {
return;
}
// We can't activate a menubar outside of the document.
if (!IsInComposedDoc()) {
MOZ_ASSERT(!mIsActive, "How?");
return;
}
if (!aActiveFlag) {
// If there is a request to deactivate the menu bar, check to see whether
// there is a menu popup open for the menu bar. In this case, don't
// deactivate the menu bar.
if (auto* activeChild = GetActiveMenuChild()) {
if (activeChild->IsMenuPopupOpen()) {
return;
}
}
}
mIsActive = aActiveFlag;
if (nsXULPopupManager* pm = nsXULPopupManager::GetInstance()) {
pm->SetActiveMenuBar(this, aActiveFlag);
}
if (!aActiveFlag) {
mActiveByKeyboard = false;
SetActiveMenuChild(nullptr);
}
RefPtr dispatcher = new AsyncEventDispatcher(
this, aActiveFlag ? u"DOMMenuBarActive"_ns : u"DOMMenuBarInactive"_ns,
CanBubble::eYes, ChromeOnlyDispatch::eNo);
DebugOnly<nsresult> rv = dispatcher->PostDOMEvent();
NS_ASSERTION(NS_SUCCEEDED(rv), "AsyncEventDispatcher failed to dispatch");
}
nsresult XULMenuBarElement::BindToTree(BindContext& aContext,
nsINode& aParent) {
MOZ_TRY(XULMenuParentElement::BindToTree(aContext, aParent));
MOZ_DIAGNOSTIC_ASSERT(!mListener);
if (aContext.InComposedDoc()) {
mListener = new MenuBarListener(*this);
}
return NS_OK;
}
void XULMenuBarElement::UnbindFromTree(bool aNullParent) {
if (mListener) {
mListener->Detach();
mListener = nullptr;
}
if (NS_WARN_IF(mIsActive)) {
// Clean up silently when getting removed from the document while active.
mIsActive = false;
if (nsXULPopupManager* pm = nsXULPopupManager::GetInstance()) {
pm->SetActiveMenuBar(this, false);
}
}
return XULMenuParentElement::UnbindFromTree(aNullParent);
}
} // namespace mozilla::dom
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