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The Tor Browser
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nsTableColFrame.cpp (6625B)

      1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* This Source Code Form is subject to the terms of the Mozilla Public
      3 * License, v. 2.0. If a copy of the MPL was not distributed with this
      4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      5 #include "nsTableColFrame.h"
      6 
      7 #include "mozilla/ComputedStyle.h"
      8 #include "mozilla/PresShell.h"
      9 #include "mozilla/StaticPrefs_layout.h"
     10 #include "nsCOMPtr.h"
     11 #include "nsCSSRendering.h"
     12 #include "nsContainerFrame.h"
     13 #include "nsGkAtoms.h"
     14 #include "nsIContent.h"
     15 #include "nsPresContext.h"
     16 #include "nsStyleConsts.h"
     17 #include "nsTableFrame.h"
     18 
     19 using namespace mozilla;
     20 
     21 #define COL_TYPE_BITS                                                         \
     22  (NS_FRAME_STATE_BIT(28) | NS_FRAME_STATE_BIT(29) | NS_FRAME_STATE_BIT(30) | \
     23   NS_FRAME_STATE_BIT(31))
     24 #define COL_TYPE_OFFSET 28
     25 
     26 using namespace mozilla;
     27 
     28 nsTableColFrame::nsTableColFrame(ComputedStyle* aStyle,
     29                                 nsPresContext* aPresContext)
     30    : nsSplittableFrame(aStyle, aPresContext, kClassID),
     31      mMinCoord(0),
     32      mPrefCoord(0),
     33      mSpanMinCoord(0),
     34      mSpanPrefCoord(0),
     35      mPrefPercent(0.0f),
     36      mSpanPrefPercent(0.0f),
     37      mFinalISize(0),
     38      mColIndex(0),
     39      mIStartBorderWidth(0),
     40      mIEndBorderWidth(0),
     41      mHasSpecifiedCoord(false) {
     42  SetColType(eColContent);
     43  ResetIntrinsics();
     44  ResetSpanIntrinsics();
     45  ResetFinalISize();
     46 }
     47 
     48 nsTableColFrame::~nsTableColFrame() = default;
     49 
     50 nsTableColType nsTableColFrame::GetColType() const {
     51  return (nsTableColType)((GetStateBits() & COL_TYPE_BITS) >> COL_TYPE_OFFSET);
     52 }
     53 
     54 void nsTableColFrame::SetColType(nsTableColType aType) {
     55  NS_ASSERTION(aType != eColAnonymousCol ||
     56                   (GetPrevContinuation() &&
     57                    GetPrevContinuation()->GetNextContinuation() == this &&
     58                    GetPrevContinuation()->GetNextSibling() == this),
     59               "spanned content cols must be continuations");
     60  uint32_t type = aType - eColContent;
     61  RemoveStateBits(COL_TYPE_BITS);
     62  AddStateBits(nsFrameState(type << COL_TYPE_OFFSET));
     63 }
     64 
     65 /* virtual */
     66 void nsTableColFrame::DidSetComputedStyle(ComputedStyle* aOldComputedStyle) {
     67  nsSplittableFrame::DidSetComputedStyle(aOldComputedStyle);
     68 
     69  if (!aOldComputedStyle) {  // avoid this on init
     70    return;
     71  }
     72 
     73  nsTableFrame* tableFrame = GetTableFrame();
     74  if (tableFrame->IsBorderCollapse() &&
     75      tableFrame->BCRecalcNeeded(aOldComputedStyle, Style())) {
     76    TableArea damageArea(GetColIndex(), 0, 1, tableFrame->GetRowCount());
     77    tableFrame->AddBCDamageArea(damageArea);
     78  }
     79 }
     80 
     81 void nsTableColFrame::Reflow(nsPresContext* aPresContext,
     82                             ReflowOutput& aDesiredSize,
     83                             const ReflowInput& aReflowInput,
     84                             nsReflowStatus& aStatus) {
     85  MarkInReflow();
     86  DO_GLOBAL_REFLOW_COUNT("nsTableColFrame");
     87  MOZ_ASSERT(aStatus.IsEmpty(), "Caller should pass a fresh reflow status!");
     88  aDesiredSize.ClearSize();
     89  const nsStyleVisibility* colVis = StyleVisibility();
     90  bool collapseCol = StyleVisibility::Collapse == colVis->mVisible;
     91  if (collapseCol) {
     92    GetTableFrame()->SetNeedToCollapse(true);
     93  }
     94 }
     95 
     96 void nsTableColFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
     97                                       const nsDisplayListSet& aLists) {
     98  // Per https://drafts.csswg.org/css-tables-3/#global-style-overrides:
     99  // "All css properties of table-column and table-column-group boxes are
    100  // ignored, except when explicitly specified by this specification."
    101  // CSS outlines and box-shadows fall into this category, so we skip them
    102  // on these boxes.
    103  MOZ_ASSERT_UNREACHABLE("Cols don't paint themselves");
    104 }
    105 
    106 int32_t nsTableColFrame::GetSpan() { return StyleTable()->mXSpan; }
    107 
    108 #ifdef DEBUG
    109 void nsTableColFrame::Dump(int32_t aIndent) {
    110  char* indent = new char[aIndent + 1];
    111  if (!indent) return;
    112  for (int32_t i = 0; i < aIndent + 1; i++) {
    113    indent[i] = ' ';
    114  }
    115  indent[aIndent] = 0;
    116 
    117  printf("%s**START COL DUMP**\n%s colIndex=%d coltype=", indent, indent,
    118         mColIndex);
    119  nsTableColType colType = GetColType();
    120  switch (colType) {
    121    case eColContent:
    122      printf(" content ");
    123      break;
    124    case eColAnonymousCol:
    125      printf(" anonymous-column ");
    126      break;
    127    case eColAnonymousColGroup:
    128      printf(" anonymous-colgroup ");
    129      break;
    130    case eColAnonymousCell:
    131      printf(" anonymous-cell ");
    132      break;
    133  }
    134  printf("\nm:%d c:%d(%c) p:%f sm:%d sc:%d sp:%f f:%d", int32_t(mMinCoord),
    135         int32_t(mPrefCoord), mHasSpecifiedCoord ? 's' : 'u', mPrefPercent,
    136         int32_t(mSpanMinCoord), int32_t(mSpanPrefCoord), mSpanPrefPercent,
    137         int32_t(GetFinalISize()));
    138  printf("\n%s**END COL DUMP** ", indent);
    139  delete[] indent;
    140 }
    141 #endif
    142 /* ----- global methods ----- */
    143 
    144 nsTableColFrame* NS_NewTableColFrame(PresShell* aPresShell,
    145                                     ComputedStyle* aStyle) {
    146  return new (aPresShell) nsTableColFrame(aStyle, aPresShell->GetPresContext());
    147 }
    148 
    149 NS_IMPL_FRAMEARENA_HELPERS(nsTableColFrame)
    150 
    151 nsTableColFrame* nsTableColFrame::GetNextCol() const {
    152  nsIFrame* childFrame = GetNextSibling();
    153  while (childFrame) {
    154    if (childFrame->IsTableColFrame()) {
    155      return (nsTableColFrame*)childFrame;
    156    }
    157    childFrame = childFrame->GetNextSibling();
    158  }
    159  return nullptr;
    160 }
    161 
    162 #ifdef DEBUG_FRAME_DUMP
    163 nsresult nsTableColFrame::GetFrameName(nsAString& aResult) const {
    164  return MakeFrameName(u"TableCol"_ns, aResult);
    165 }
    166 #endif
    167 
    168 void nsTableColFrame::InvalidateFrame(uint32_t aDisplayItemKey,
    169                                      bool aRebuildDisplayItems) {
    170  nsIFrame::InvalidateFrame(aDisplayItemKey, aRebuildDisplayItems);
    171  if (GetTableFrame()->IsBorderCollapse()) {
    172    const bool rebuild = StaticPrefs::layout_display_list_retain_sc();
    173    GetParent()->InvalidateFrameWithRect(InkOverflowRect() + GetPosition(),
    174                                         aDisplayItemKey, rebuild);
    175  }
    176 }
    177 
    178 void nsTableColFrame::InvalidateFrameWithRect(const nsRect& aRect,
    179                                              uint32_t aDisplayItemKey,
    180                                              bool aRebuildDisplayItems) {
    181  nsIFrame::InvalidateFrameWithRect(aRect, aDisplayItemKey,
    182                                    aRebuildDisplayItems);
    183 
    184  // If we have filters applied that would affects our bounds, then
    185  // we get an inactive layer created and this is computed
    186  // within FrameLayerBuilder
    187  GetParent()->InvalidateFrameWithRect(aRect + GetPosition(), aDisplayItemKey,
    188                                       aRebuildDisplayItems);
    189 }