layout/generic/nsLeafFrame.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 /* base class for rendering objects that do not have child lists */
   8
   9 #include "nsLeafFrame.h"
  10
  11 #include "mozilla/PresShell.h"
  12 #include "nsPresContext.h"
  13
  14 using namespace mozilla;
  15
  16 nsLeafFrame::~nsLeafFrame() = default;
  17
  18 /* virtual */
  19 void nsLeafFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
  20                                    const nsDisplayListSet& aLists) {
  21   DO_GLOBAL_REFLOW_COUNT_DSP("nsLeafFrame");
  22   DisplayBorderBackgroundOutline(aBuilder, aLists);
  23 }
  24
  25 /* virtual */
  26 nscoord nsLeafFrame::GetMinISize(gfxContext* aRenderingContext) {
  27   nscoord result;
  28   DISPLAY_MIN_INLINE_SIZE(this, result);
  29   result = GetIntrinsicISize();
  30   return result;
  31 }
  32
  33 /* virtual */
  34 nscoord nsLeafFrame::GetPrefISize(gfxContext* aRenderingContext) {
  35   nscoord result;
  36   DISPLAY_PREF_INLINE_SIZE(this, result);
  37   result = GetIntrinsicISize();
  38   return result;
  39 }
  40
  41 /* virtual */
  42 LogicalSize nsLeafFrame::ComputeAutoSize(
  43     gfxContext* aRenderingContext, WritingMode aWM, const LogicalSize& aCBSize,
  44     nscoord aAvailableISize, const LogicalSize& aMargin,
  45     const LogicalSize& aBorderPadding, const StyleSizeOverrides& aSizeOverrides,
  46     ComputeSizeFlags aFlags) {
  47   const WritingMode wm = GetWritingMode();
  48   LogicalSize result(wm, GetIntrinsicISize(), GetIntrinsicBSize());
  49   return result.ConvertTo(aWM, wm);
  50 }
  51
  52 nscoord nsLeafFrame::GetIntrinsicBSize() {
  53   MOZ_ASSERT_UNREACHABLE("Someone didn't override Reflow or ComputeAutoSize");
  54   return 0;
  55 }
  56
  57 void nsLeafFrame::SizeToAvailSize(const ReflowInput& aReflowInput,
  58                                   ReflowOutput& aDesiredSize) {
  59   aDesiredSize.SetSize(aReflowInput.GetWritingMode(),
  60                        aReflowInput.AvailableSize());
  61   aDesiredSize.SetOverflowAreasToDesiredBounds();
  62   FinishAndStoreOverflow(&aDesiredSize, aReflowInput.mStyleDisplay);
  63 }