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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 "nsHTMLParts.h"
#include "nsContainerFrame.h"
#include "nsCSSRendering.h"
#include "nsIDocument.h"
#include "nsPageFrame.h"
#include "nsIDOMEvent.h"
#include "nsStyleConsts.h"
#include "nsGkAtoms.h"
#include "nsIPresShell.h"
#include "nsBoxFrame.h"
#include "nsStackLayout.h"
#include "nsIAnonymousContentCreator.h"
#include "mozilla/dom/NodeInfo.h"
#include "nsIServiceManager.h"
#include "nsNodeInfoManager.h"
#include "nsContentCreatorFunctions.h"
#include "nsContentUtils.h"
#include "nsContentList.h"
#include "mozilla/dom/Element.h"
//#define DEBUG_REFLOW
using namespace mozilla::dom;
class nsDocElementBoxFrame : public nsBoxFrame,
public nsIAnonymousContentCreator
{
public:
virtual void DestroyFrom(nsIFrame* aDestructRoot) override;
friend nsIFrame* NS_NewBoxFrame(nsIPresShell* aPresShell,
nsStyleContext* aContext);
explicit nsDocElementBoxFrame(nsStyleContext* aContext)
:nsBoxFrame(aContext, true) {}
NS_DECL_QUERYFRAME
NS_DECL_FRAMEARENA_HELPERS
// nsIAnonymousContentCreator
virtual nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements) override;
virtual void AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
uint32_t aFilter) override;
virtual bool IsFrameOfType(uint32_t aFlags) const override
{
// Override nsBoxFrame.
if (aFlags & (nsIFrame::eReplacedContainsBlock | nsIFrame::eReplaced))
return false;
return nsBoxFrame::IsFrameOfType(aFlags);
}
#ifdef DEBUG_FRAME_DUMP
virtual nsresult GetFrameName(nsAString& aResult) const override;
#endif
private:
nsCOMPtr<Element> mPopupgroupContent;
nsCOMPtr<Element> mTooltipContent;
};
//----------------------------------------------------------------------
nsContainerFrame*
NS_NewDocElementBoxFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
{
return new (aPresShell) nsDocElementBoxFrame(aContext);
}
NS_IMPL_FRAMEARENA_HELPERS(nsDocElementBoxFrame)
void
nsDocElementBoxFrame::DestroyFrom(nsIFrame* aDestructRoot)
{
nsContentUtils::DestroyAnonymousContent(&mPopupgroupContent);
nsContentUtils::DestroyAnonymousContent(&mTooltipContent);
nsBoxFrame::DestroyFrom(aDestructRoot);
}
nsresult
nsDocElementBoxFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
{
nsIDocument* doc = mContent->GetComposedDoc();
if (!doc) {
// The page is currently being torn down. Why bother.
return NS_ERROR_FAILURE;
}
nsNodeInfoManager *nodeInfoManager = doc->NodeInfoManager();
// create the top-secret popupgroup node. shhhhh!
RefPtr<NodeInfo> nodeInfo;
nodeInfo = nodeInfoManager->GetNodeInfo(nsGkAtoms::popupgroup,
nullptr, kNameSpaceID_XUL,
nsIDOMNode::ELEMENT_NODE);
NS_ENSURE_TRUE(nodeInfo, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = NS_NewXULElement(getter_AddRefs(mPopupgroupContent),
nodeInfo.forget());
NS_ENSURE_SUCCESS(rv, rv);
if (!aElements.AppendElement(mPopupgroupContent))
return NS_ERROR_OUT_OF_MEMORY;
// create the top-secret default tooltip node. shhhhh!
nodeInfo = nodeInfoManager->GetNodeInfo(nsGkAtoms::tooltip, nullptr,
kNameSpaceID_XUL,
nsIDOMNode::ELEMENT_NODE);
NS_ENSURE_TRUE(nodeInfo, NS_ERROR_OUT_OF_MEMORY);
rv = NS_NewXULElement(getter_AddRefs(mTooltipContent), nodeInfo.forget());
NS_ENSURE_SUCCESS(rv, rv);
mTooltipContent->SetAttr(kNameSpaceID_None, nsGkAtoms::_default,
NS_LITERAL_STRING("true"), false);
if (!aElements.AppendElement(mTooltipContent))
return NS_ERROR_OUT_OF_MEMORY;
return NS_OK;
}
void
nsDocElementBoxFrame::AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
uint32_t aFilter)
{
if (mPopupgroupContent) {
aElements.AppendElement(mPopupgroupContent);
}
if (mTooltipContent) {
aElements.AppendElement(mTooltipContent);
}
}
NS_QUERYFRAME_HEAD(nsDocElementBoxFrame)
NS_QUERYFRAME_ENTRY(nsIAnonymousContentCreator)
NS_QUERYFRAME_TAIL_INHERITING(nsBoxFrame)
#ifdef DEBUG_FRAME_DUMP
nsresult
nsDocElementBoxFrame::GetFrameName(nsAString& aResult) const
{
return MakeFrameName(NS_LITERAL_STRING("DocElementBox"), aResult);
}
#endif
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