DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Header

Mercurial (5350524bb654)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160
/* -*- 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 "nsPopupSetFrame.h"
#include "nsGkAtoms.h"
#include "nsCOMPtr.h"
#include "nsIContent.h"
#include "nsPresContext.h"
#include "nsStyleContext.h"
#include "nsBoxLayoutState.h"
#include "nsIScrollableFrame.h"
#include "nsIRootBox.h"
#include "nsMenuPopupFrame.h"

nsIFrame*
NS_NewPopupSetFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
{
  return new (aPresShell) nsPopupSetFrame(aContext);
}

NS_IMPL_FRAMEARENA_HELPERS(nsPopupSetFrame)

void
nsPopupSetFrame::Init(nsIContent*       aContent,
                      nsContainerFrame* aParent,
                      nsIFrame*         aPrevInFlow)
{
  nsBoxFrame::Init(aContent, aParent, aPrevInFlow);

  // Normally the root box is our grandparent, but in case of wrapping
  // it can be our great-grandparent.
  nsIRootBox *rootBox = nsIRootBox::GetRootBox(PresContext()->GetPresShell());
  if (rootBox) {
    rootBox->SetPopupSetFrame(this);
  }
}

nsIAtom*
nsPopupSetFrame::GetType() const
{
  return nsGkAtoms::popupSetFrame;
}

void
nsPopupSetFrame::AppendFrames(ChildListID     aListID,
                              nsFrameList&    aFrameList)
{
  if (aListID == kPopupList) {
    AddPopupFrameList(aFrameList);
    return;
  }
  nsBoxFrame::AppendFrames(aListID, aFrameList);
}

void
nsPopupSetFrame::RemoveFrame(ChildListID     aListID,
                             nsIFrame*       aOldFrame)
{
  if (aListID == kPopupList) {
    RemovePopupFrame(aOldFrame);
    return;
  }
  nsBoxFrame::RemoveFrame(aListID, aOldFrame);
}

void
nsPopupSetFrame::InsertFrames(ChildListID     aListID,
                              nsIFrame*       aPrevFrame,
                              nsFrameList&    aFrameList)
{
  if (aListID == kPopupList) {
    AddPopupFrameList(aFrameList);
    return;
  }
  nsBoxFrame::InsertFrames(aListID, aPrevFrame, aFrameList);
}

void
nsPopupSetFrame::SetInitialChildList(ChildListID     aListID,
                                     nsFrameList&    aChildList)
{
  if (aListID == kPopupList) {
    NS_ASSERTION(mPopupList.IsEmpty(),
                 "SetInitialChildList on non-empty child list");
    AddPopupFrameList(aChildList);
    return;
  }
  nsBoxFrame::SetInitialChildList(aListID, aChildList);
}

const nsFrameList&
nsPopupSetFrame::GetChildList(ChildListID aListID) const
{
  if (kPopupList == aListID) {
    return mPopupList;
  }
  return nsBoxFrame::GetChildList(aListID);
}

void
nsPopupSetFrame::GetChildLists(nsTArray<ChildList>* aLists) const
{
  nsBoxFrame::GetChildLists(aLists);
  mPopupList.AppendIfNonempty(aLists, kPopupList);
}

void
nsPopupSetFrame::DestroyFrom(nsIFrame* aDestructRoot)
{
  mPopupList.DestroyFramesFrom(aDestructRoot);

  // Normally the root box is our grandparent, but in case of wrapping
  // it can be our great-grandparent.
  nsIRootBox *rootBox = nsIRootBox::GetRootBox(PresContext()->GetPresShell());
  if (rootBox) {
    rootBox->SetPopupSetFrame(nullptr);
  }

  nsBoxFrame::DestroyFrom(aDestructRoot);
}

NS_IMETHODIMP
nsPopupSetFrame::DoXULLayout(nsBoxLayoutState& aState)
{
  // lay us out
  nsresult rv = nsBoxFrame::DoXULLayout(aState);

  // lay out all of our currently open popups.
  for (nsFrameList::Enumerator e(mPopupList); !e.AtEnd(); e.Next()) {
    nsMenuPopupFrame* popupChild = static_cast<nsMenuPopupFrame*>(e.get());
    popupChild->LayoutPopup(aState, nullptr, nullptr, false);
  }

  return rv;
}

void
nsPopupSetFrame::RemovePopupFrame(nsIFrame* aPopup)
{
  NS_PRECONDITION((aPopup->GetStateBits() & NS_FRAME_OUT_OF_FLOW) &&
                  aPopup->GetType() == nsGkAtoms::menuPopupFrame,
                  "removing wrong type of frame in popupset's ::popupList");

  mPopupList.DestroyFrame(aPopup);
}

void
nsPopupSetFrame::AddPopupFrameList(nsFrameList& aPopupFrameList)
{
#ifdef DEBUG
  for (nsFrameList::Enumerator e(aPopupFrameList); !e.AtEnd(); e.Next()) {
    NS_ASSERTION((e.get()->GetStateBits() & NS_FRAME_OUT_OF_FLOW) &&
                 e.get()->GetType() == nsGkAtoms::menuPopupFrame,
                 "adding wrong type of frame in popupset's ::popupList");
  }
#endif
  mPopupList.InsertFrames(nullptr, nullptr, aPopupFrameList);
}