161 lines
4.3 KiB
C++
161 lines
4.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsPopupSetFrame.h"
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#include "nsGkAtoms.h"
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#include "nsCOMPtr.h"
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#include "nsIContent.h"
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#include "nsPresContext.h"
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#include "nsStyleContext.h"
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#include "nsBoxLayoutState.h"
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#include "nsIScrollableFrame.h"
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#include "nsIRootBox.h"
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#include "nsMenuPopupFrame.h"
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nsIFrame*
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NS_NewPopupSetFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
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{
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return new (aPresShell) nsPopupSetFrame(aContext);
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}
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NS_IMPL_FRAMEARENA_HELPERS(nsPopupSetFrame)
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void
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nsPopupSetFrame::Init(nsIContent* aContent,
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nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow)
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{
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nsBoxFrame::Init(aContent, aParent, aPrevInFlow);
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// Normally the root box is our grandparent, but in case of wrapping
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// it can be our great-grandparent.
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nsIRootBox *rootBox = nsIRootBox::GetRootBox(PresContext()->GetPresShell());
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if (rootBox) {
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rootBox->SetPopupSetFrame(this);
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}
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}
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nsIAtom*
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nsPopupSetFrame::GetType() const
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{
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return nsGkAtoms::popupSetFrame;
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}
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void
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nsPopupSetFrame::AppendFrames(ChildListID aListID,
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nsFrameList& aFrameList)
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{
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if (aListID == kPopupList) {
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AddPopupFrameList(aFrameList);
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return;
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}
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nsBoxFrame::AppendFrames(aListID, aFrameList);
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}
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void
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nsPopupSetFrame::RemoveFrame(ChildListID aListID,
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nsIFrame* aOldFrame)
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{
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if (aListID == kPopupList) {
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RemovePopupFrame(aOldFrame);
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return;
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}
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nsBoxFrame::RemoveFrame(aListID, aOldFrame);
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}
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void
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nsPopupSetFrame::InsertFrames(ChildListID aListID,
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nsIFrame* aPrevFrame,
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nsFrameList& aFrameList)
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{
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if (aListID == kPopupList) {
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AddPopupFrameList(aFrameList);
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return;
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}
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nsBoxFrame::InsertFrames(aListID, aPrevFrame, aFrameList);
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}
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void
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nsPopupSetFrame::SetInitialChildList(ChildListID aListID,
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nsFrameList& aChildList)
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{
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if (aListID == kPopupList) {
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NS_ASSERTION(mPopupList.IsEmpty(),
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"SetInitialChildList on non-empty child list");
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AddPopupFrameList(aChildList);
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return;
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}
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nsBoxFrame::SetInitialChildList(aListID, aChildList);
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}
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const nsFrameList&
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nsPopupSetFrame::GetChildList(ChildListID aListID) const
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{
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if (kPopupList == aListID) {
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return mPopupList;
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}
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return nsBoxFrame::GetChildList(aListID);
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}
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void
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nsPopupSetFrame::GetChildLists(nsTArray<ChildList>* aLists) const
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{
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nsBoxFrame::GetChildLists(aLists);
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mPopupList.AppendIfNonempty(aLists, kPopupList);
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}
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void
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nsPopupSetFrame::DestroyFrom(nsIFrame* aDestructRoot)
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{
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mPopupList.DestroyFramesFrom(aDestructRoot);
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// Normally the root box is our grandparent, but in case of wrapping
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// it can be our great-grandparent.
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nsIRootBox *rootBox = nsIRootBox::GetRootBox(PresContext()->GetPresShell());
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if (rootBox) {
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rootBox->SetPopupSetFrame(nullptr);
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}
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nsBoxFrame::DestroyFrom(aDestructRoot);
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}
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NS_IMETHODIMP
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nsPopupSetFrame::DoXULLayout(nsBoxLayoutState& aState)
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{
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// lay us out
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nsresult rv = nsBoxFrame::DoXULLayout(aState);
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// lay out all of our currently open popups.
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for (nsFrameList::Enumerator e(mPopupList); !e.AtEnd(); e.Next()) {
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nsMenuPopupFrame* popupChild = static_cast<nsMenuPopupFrame*>(e.get());
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popupChild->LayoutPopup(aState, nullptr, nullptr, false);
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}
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return rv;
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}
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void
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nsPopupSetFrame::RemovePopupFrame(nsIFrame* aPopup)
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{
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NS_PRECONDITION((aPopup->GetStateBits() & NS_FRAME_OUT_OF_FLOW) &&
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aPopup->GetType() == nsGkAtoms::menuPopupFrame,
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"removing wrong type of frame in popupset's ::popupList");
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mPopupList.DestroyFrame(aPopup);
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}
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void
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nsPopupSetFrame::AddPopupFrameList(nsFrameList& aPopupFrameList)
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{
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#ifdef DEBUG
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for (nsFrameList::Enumerator e(aPopupFrameList); !e.AtEnd(); e.Next()) {
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NS_ASSERTION((e.get()->GetStateBits() & NS_FRAME_OUT_OF_FLOW) &&
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e.get()->GetType() == nsGkAtoms::menuPopupFrame,
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"adding wrong type of frame in popupset's ::popupList");
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}
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#endif
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mPopupList.InsertFrames(nullptr, nullptr, aPopupFrameList);
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}
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