зеркало из https://github.com/mozilla/gecko-dev.git
138 строки
4.5 KiB
C++
138 строки
4.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 "mozilla/ComputedStyle.h"
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#include "mozilla/PresShell.h"
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#include "nsBoxLayoutState.h"
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#include "nsIScrollableFrame.h"
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#include "nsIPopupContainer.h"
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#include "nsMenuPopupFrame.h"
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typedef mozilla::ComputedStyle ComputedStyle;
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nsIFrame* NS_NewPopupSetFrame(mozilla::PresShell* aPresShell,
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ComputedStyle* aStyle) {
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return new (aPresShell) nsPopupSetFrame(aStyle, aPresShell->GetPresContext());
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}
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NS_IMPL_FRAMEARENA_HELPERS(nsPopupSetFrame)
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void nsPopupSetFrame::Init(nsIContent* aContent, nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow) {
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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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nsIPopupContainer* popupContainer =
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nsIPopupContainer::GetPopupContainer(PresContext()->GetPresShell());
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if (popupContainer) {
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popupContainer->SetPopupSetFrame(this);
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}
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}
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void nsPopupSetFrame::AppendFrames(ChildListID aListID,
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nsFrameList& aFrameList) {
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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 nsPopupSetFrame::RemoveFrame(ChildListID aListID, nsIFrame* aOldFrame) {
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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 nsPopupSetFrame::InsertFrames(ChildListID aListID, nsIFrame* aPrevFrame,
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const nsLineList::iterator* aPrevFrameLine,
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nsFrameList& aFrameList) {
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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, aPrevFrameLine, aFrameList);
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}
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void nsPopupSetFrame::SetInitialChildList(ChildListID aListID,
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nsFrameList& aChildList) {
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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& nsPopupSetFrame::GetChildList(ChildListID aListID) const {
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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 nsPopupSetFrame::GetChildLists(nsTArray<ChildList>* aLists) const {
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nsBoxFrame::GetChildLists(aLists);
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mPopupList.AppendIfNonempty(aLists, kPopupList);
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}
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void nsPopupSetFrame::DestroyFrom(nsIFrame* aDestructRoot,
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PostDestroyData& aPostDestroyData) {
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mPopupList.DestroyFramesFrom(aDestructRoot, aPostDestroyData);
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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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nsIPopupContainer* popupContainer =
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nsIPopupContainer::GetPopupContainer(PresContext()->GetPresShell());
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if (popupContainer) {
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popupContainer->SetPopupSetFrame(nullptr);
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}
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nsBoxFrame::DestroyFrom(aDestructRoot, aPostDestroyData);
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}
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NS_IMETHODIMP
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nsPopupSetFrame::DoXULLayout(nsBoxLayoutState& aState) {
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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, false);
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}
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return rv;
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}
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void nsPopupSetFrame::RemovePopupFrame(nsIFrame* aPopup) {
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MOZ_ASSERT((aPopup->GetStateBits() & NS_FRAME_OUT_OF_FLOW) &&
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aPopup->IsMenuPopupFrame(),
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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 nsPopupSetFrame::AddPopupFrameList(nsFrameList& aPopupFrameList) {
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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()->IsMenuPopupFrame(),
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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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