michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: #include "nsHTMLParts.h"
michael@0: #include "nsContainerFrame.h"
michael@0: #include "nsCSSRendering.h"
michael@0: #include "nsIDocument.h"
michael@0: #include "nsPageFrame.h"
michael@0: #include "nsIDOMEvent.h"
michael@0: #include "nsStyleConsts.h"
michael@0: #include "nsGkAtoms.h"
michael@0: #include "nsIPresShell.h"
michael@0: #include "nsBoxFrame.h"
michael@0: #include "nsStackLayout.h"
michael@0: #include "nsIAnonymousContentCreator.h"
michael@0: #include "nsINodeInfo.h"
michael@0: #include "nsIServiceManager.h"
michael@0: #include "nsNodeInfoManager.h"
michael@0: #include "nsContentCreatorFunctions.h"
michael@0: #include "nsContentUtils.h"
michael@0: #include "nsContentList.h"
michael@0: #include "mozilla/dom/Element.h"
michael@0: 
michael@0: //#define DEBUG_REFLOW
michael@0: 
michael@0: using namespace mozilla::dom;
michael@0: 
michael@0: class nsDocElementBoxFrame : public nsBoxFrame,
michael@0:                              public nsIAnonymousContentCreator
michael@0: {
michael@0: public:
michael@0:   virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
michael@0: 
michael@0:   friend nsIFrame* NS_NewBoxFrame(nsIPresShell* aPresShell,
michael@0:                                   nsStyleContext* aContext);
michael@0: 
michael@0:   nsDocElementBoxFrame(nsIPresShell* aShell, nsStyleContext* aContext)
michael@0:     :nsBoxFrame(aShell, aContext, true) {}
michael@0: 
michael@0:   NS_DECL_QUERYFRAME
michael@0:   NS_DECL_FRAMEARENA_HELPERS
michael@0: 
michael@0:   // nsIAnonymousContentCreator
michael@0:   virtual nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements) MOZ_OVERRIDE;
michael@0:   virtual void AppendAnonymousContentTo(nsBaseContentList& aElements,
michael@0:                                         uint32_t aFilter) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE
michael@0:   {
michael@0:     // Override nsBoxFrame.
michael@0:     if (aFlags & (nsIFrame::eReplacedContainsBlock | nsIFrame::eReplaced))
michael@0:       return false;
michael@0:     return nsBoxFrame::IsFrameOfType(aFlags);
michael@0:   }
michael@0: 
michael@0: #ifdef DEBUG_FRAME_DUMP
michael@0:   virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;
michael@0: #endif
michael@0: private:
michael@0:   nsCOMPtr<Element> mPopupgroupContent;
michael@0:   nsCOMPtr<Element> mTooltipContent;
michael@0: };
michael@0: 
michael@0: //----------------------------------------------------------------------
michael@0: 
michael@0: nsIFrame*
michael@0: NS_NewDocElementBoxFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
michael@0: {
michael@0:   return new (aPresShell) nsDocElementBoxFrame (aPresShell, aContext);
michael@0: }
michael@0: 
michael@0: NS_IMPL_FRAMEARENA_HELPERS(nsDocElementBoxFrame)
michael@0: 
michael@0: void
michael@0: nsDocElementBoxFrame::DestroyFrom(nsIFrame* aDestructRoot)
michael@0: {
michael@0:   nsContentUtils::DestroyAnonymousContent(&mPopupgroupContent);
michael@0:   nsContentUtils::DestroyAnonymousContent(&mTooltipContent);
michael@0:   nsBoxFrame::DestroyFrom(aDestructRoot);
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: nsDocElementBoxFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
michael@0: {
michael@0:   nsIDocument* doc = mContent->GetDocument();
michael@0:   if (!doc) {
michael@0:     // The page is currently being torn down.  Why bother.
michael@0:     return NS_ERROR_FAILURE;
michael@0:   }
michael@0:   nsNodeInfoManager *nodeInfoManager = doc->NodeInfoManager();
michael@0: 
michael@0:   // create the top-secret popupgroup node. shhhhh!
michael@0:   nsCOMPtr<nsINodeInfo> nodeInfo;
michael@0:   nodeInfo = nodeInfoManager->GetNodeInfo(nsGkAtoms::popupgroup,
michael@0:                                           nullptr, kNameSpaceID_XUL,
michael@0:                                           nsIDOMNode::ELEMENT_NODE);
michael@0:   NS_ENSURE_TRUE(nodeInfo, NS_ERROR_OUT_OF_MEMORY);
michael@0: 
michael@0:   nsresult rv = NS_NewXULElement(getter_AddRefs(mPopupgroupContent),
michael@0:                                  nodeInfo.forget());
michael@0:   NS_ENSURE_SUCCESS(rv, rv);
michael@0: 
michael@0:   if (!aElements.AppendElement(mPopupgroupContent))
michael@0:     return NS_ERROR_OUT_OF_MEMORY;
michael@0: 
michael@0:   // create the top-secret default tooltip node. shhhhh!
michael@0:   nodeInfo = nodeInfoManager->GetNodeInfo(nsGkAtoms::tooltip, nullptr,
michael@0:                                           kNameSpaceID_XUL,
michael@0:                                           nsIDOMNode::ELEMENT_NODE);
michael@0:   NS_ENSURE_TRUE(nodeInfo, NS_ERROR_OUT_OF_MEMORY);
michael@0: 
michael@0:   rv = NS_NewXULElement(getter_AddRefs(mTooltipContent), nodeInfo.forget());
michael@0:   NS_ENSURE_SUCCESS(rv, rv);
michael@0: 
michael@0:   mTooltipContent->SetAttr(kNameSpaceID_None, nsGkAtoms::_default,
michael@0:                            NS_LITERAL_STRING("true"), false);
michael@0: 
michael@0:   if (!aElements.AppendElement(mTooltipContent))
michael@0:     return NS_ERROR_OUT_OF_MEMORY;
michael@0: 
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: void
michael@0: nsDocElementBoxFrame::AppendAnonymousContentTo(nsBaseContentList& aElements,
michael@0:                                                uint32_t aFilter)
michael@0: {
michael@0:   aElements.MaybeAppendElement(mPopupgroupContent);
michael@0:   aElements.MaybeAppendElement(mTooltipContent);
michael@0: }
michael@0: 
michael@0: NS_QUERYFRAME_HEAD(nsDocElementBoxFrame)
michael@0:   NS_QUERYFRAME_ENTRY(nsIAnonymousContentCreator)
michael@0: NS_QUERYFRAME_TAIL_INHERITING(nsBoxFrame)
michael@0: 
michael@0: #ifdef DEBUG_FRAME_DUMP
michael@0: nsresult
michael@0: nsDocElementBoxFrame::GetFrameName(nsAString& aResult) const
michael@0: {
michael@0:   return MakeFrameName(NS_LITERAL_STRING("DocElementBox"), aResult);
michael@0: }
michael@0: #endif