diff options
Diffstat (limited to 'layout/xul/nsDocElementBoxFrame.cpp')
-rw-r--r-- | layout/xul/nsDocElementBoxFrame.cpp | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/layout/xul/nsDocElementBoxFrame.cpp b/layout/xul/nsDocElementBoxFrame.cpp new file mode 100644 index 0000000000..cf9f72cb2e --- /dev/null +++ b/layout/xul/nsDocElementBoxFrame.cpp @@ -0,0 +1,141 @@ +/* -*- 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 "mozilla/PresShell.h" +#include "mozilla/dom/Document.h" +#include "mozilla/dom/Element.h" +#include "mozilla/dom/FromParser.h" +#include "mozilla/dom/NodeInfo.h" +#include "nsHTMLParts.h" +#include "nsContainerFrame.h" +#include "nsCSSRendering.h" +#include "nsPageFrame.h" +#include "nsStyleConsts.h" +#include "nsGkAtoms.h" +#include "nsBoxFrame.h" +#include "nsStackLayout.h" +#include "nsIAnonymousContentCreator.h" +#include "nsNodeInfoManager.h" +#include "nsContentCreatorFunctions.h" + +using namespace mozilla; +using namespace mozilla::dom; + +class nsDocElementBoxFrame final : public nsBoxFrame, + public nsIAnonymousContentCreator { + public: + virtual void DestroyFrom(nsIFrame* aDestructRoot, + PostDestroyData& aPostDestroyData) override; + + friend nsIFrame* NS_NewBoxFrame(mozilla::PresShell* aPresShell, + ComputedStyle* aStyle); + + explicit nsDocElementBoxFrame(ComputedStyle* aStyle, + nsPresContext* aPresContext) + : nsBoxFrame(aStyle, aPresContext, kClassID, true) {} + + NS_DECL_QUERYFRAME + NS_DECL_FRAMEARENA_HELPERS(nsDocElementBoxFrame) + + // 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(PresShell* aPresShell, + ComputedStyle* aStyle) { + return new (aPresShell) + nsDocElementBoxFrame(aStyle, aPresShell->GetPresContext()); +} + +NS_IMPL_FRAMEARENA_HELPERS(nsDocElementBoxFrame) + +void nsDocElementBoxFrame::DestroyFrom(nsIFrame* aDestructRoot, + PostDestroyData& aPostDestroyData) { + aPostDestroyData.AddAnonymousContent(mPopupgroupContent.forget()); + aPostDestroyData.AddAnonymousContent(mTooltipContent.forget()); + nsBoxFrame::DestroyFrom(aDestructRoot, aPostDestroyData); +} + +nsresult nsDocElementBoxFrame::CreateAnonymousContent( + nsTArray<ContentInfo>& aElements) { + Document* 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, nsINode::ELEMENT_NODE); + NS_ENSURE_TRUE(nodeInfo, NS_ERROR_OUT_OF_MEMORY); + + nsresult rv = NS_NewXULElement(getter_AddRefs(mPopupgroupContent), + nodeInfo.forget(), dom::NOT_FROM_PARSER); + NS_ENSURE_SUCCESS(rv, rv); + + // XXX(Bug 1631371) Check if this should use a fallible operation as it + // pretended earlier. + aElements.AppendElement(mPopupgroupContent); + + // create the top-secret default tooltip node. shhhhh! + nodeInfo = nodeInfoManager->GetNodeInfo( + nsGkAtoms::tooltip, nullptr, kNameSpaceID_XUL, nsINode::ELEMENT_NODE); + NS_ENSURE_TRUE(nodeInfo, NS_ERROR_OUT_OF_MEMORY); + + rv = NS_NewXULElement(getter_AddRefs(mTooltipContent), nodeInfo.forget(), + dom::NOT_FROM_PARSER); + NS_ENSURE_SUCCESS(rv, rv); + + mTooltipContent->SetAttr(kNameSpaceID_None, nsGkAtoms::_default, u"true"_ns, + false); + + // XXX(Bug 1631371) Check if this should use a fallible operation as it + // pretended earlier. + aElements.AppendElement(mTooltipContent); + + 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(u"DocElementBox"_ns, aResult); +} +#endif |