Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 96 insertions, 0 deletions

diff --git a/layout/generic/nsFirstLetterFrame.h b/layout/generic/nsFirstLetterFrame.h
new file mode 100644
index 0000000000..1fed26a7ec
--- /dev/null
+++ b/layout/generic/nsFirstLetterFrame.h
@@ -0,0 +1,96 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#ifndef nsFirstLetterFrame_h__
+#define nsFirstLetterFrame_h__
+
+/* rendering object for CSS :first-letter pseudo-element */
+
+#include "nsContainerFrame.h"
+
+class nsFirstLetterFrame : public nsContainerFrame {
+ public:
+  NS_DECL_QUERYFRAME
+  NS_DECL_FRAMEARENA_HELPERS(nsFirstLetterFrame)
+
+  nsFirstLetterFrame(ComputedStyle* aStyle, nsPresContext* aPresContext,
+                     ClassID aClassID)
+      : nsContainerFrame(aStyle, aPresContext, aClassID) {}
+
+  nsFirstLetterFrame(ComputedStyle* aStyle, nsPresContext* aPresContext)
+      : nsContainerFrame(aStyle, aPresContext, kClassID) {}
+
+  void BuildDisplayList(nsDisplayListBuilder* aBuilder,
+                        const nsDisplayListSet& aLists) final;
+
+  void Init(nsIContent* aContent, nsContainerFrame* aParent,
+            nsIFrame* aPrevInFlow) final;
+  void SetInitialChildList(ChildListID aListID, nsFrameList&& aChildList) final;
+#ifdef DEBUG_FRAME_DUMP
+  nsresult GetFrameName(nsAString& aResult) const final;
+#endif
+
+  bool IsFloating() const { return HasAnyStateBits(NS_FRAME_OUT_OF_FLOW); }
+
+  nscoord GetMinISize(gfxContext* aRenderingContext) final;
+  nscoord GetPrefISize(gfxContext* aRenderingContext) final;
+  void AddInlineMinISize(gfxContext* aRenderingContext,
+                         InlineMinISizeData* aData) final;
+  void AddInlinePrefISize(gfxContext* aRenderingContext,
+                          InlinePrefISizeData* aData) final;
+
+  SizeComputationResult ComputeSize(
+      gfxContext* aRenderingContext, mozilla::WritingMode aWM,
+      const mozilla::LogicalSize& aCBSize, nscoord aAvailableISize,
+      const mozilla::LogicalSize& aMargin,
+      const mozilla::LogicalSize& aBorderPadding,
+      const mozilla::StyleSizeOverrides& aSizeOverrides,
+      mozilla::ComputeSizeFlags aFlags) final;
+
+  void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
+              const ReflowInput& aReflowInput, nsReflowStatus& aStatus) final;
+
+  bool CanContinueTextRun() const final;
+  Maybe<nscoord> GetNaturalBaselineBOffset(mozilla::WritingMode aWM,
+                                           BaselineSharingGroup aBaselineGroup,
+                                           BaselineExportContext) const final;
+  LogicalSides GetLogicalSkipSides() const final;
+
+  // final of nsFrame method
+  nsresult GetChildFrameContainingOffset(int32_t inContentOffset, bool inHint,
+                                         int32_t* outFrameContentOffset,
+                                         nsIFrame** outChildFrame) final;
+
+  nscoord GetFirstLetterBaseline() const { return mBaseline; }
+
+  // For floating first letter frames, create a continuation for aChild and
+  // place it in the correct place. aContinuation is an outparam for the
+  // continuation that is created. aIsFluid determines if the continuation is
+  // fluid or not.
+  void CreateContinuationForFloatingParent(nsIFrame* aChild,
+                                           nsIFrame** aContinuation,
+                                           bool aIsFluid);
+
+  // Whether to use tight glyph bounds for a floating first-letter frame,
+  // or "loose" bounds based on font metrics rather than individual glyphs.
+  bool UseTightBounds() const;
+
+ protected:
+  nscoord mBaseline;
+
+  void DrainOverflowFrames(nsPresContext* aPresContext);
+};
+
+class nsFloatingFirstLetterFrame : public nsFirstLetterFrame {
+ public:
+  NS_DECL_QUERYFRAME
+  NS_DECL_FRAMEARENA_HELPERS(nsFloatingFirstLetterFrame)
+
+  nsFloatingFirstLetterFrame(ComputedStyle* aStyle, nsPresContext* aPresContext)
+      : nsFirstLetterFrame(aStyle, aPresContext, kClassID) {}
+};
+
+#endif /* nsFirstLetterFrame_h__ */