1 files changed, 95 insertions, 0 deletions
diff --git a/layout/generic/nsFirstLetterFrame.h b/layout/generic/nsFirstLetterFrame.h
new file mode 100644
index 000000000..40e4ef0cf
--- /dev/null
+++ b/layout/generic/nsFirstLetterFrame.h
@@ -0,0 +1,95 @@
+/* -*- 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/. */
+
+#ifndef nsFirstLetterFrame_h__
+#define nsFirstLetterFrame_h__
+
+/* rendering object for CSS :first-letter pseudo-element */
+
+#include "mozilla/Attributes.h"
+#include "nsContainerFrame.h"
+
+class nsFirstLetterFrame final : public nsContainerFrame {
+public:
+  NS_DECL_QUERYFRAME_TARGET(nsFirstLetterFrame)
+  NS_DECL_QUERYFRAME
+  NS_DECL_FRAMEARENA_HELPERS
+
+  explicit nsFirstLetterFrame(nsStyleContext* aContext) : nsContainerFrame(aContext) {}
+
+  virtual void BuildDisplayList(nsDisplayListBuilder*   aBuilder,
+                                const nsRect&           aDirtyRect,
+                                const nsDisplayListSet& aLists) override;
+
+  virtual void Init(nsIContent*       aContent,
+                    nsContainerFrame* aParent,
+                    nsIFrame*         aPrevInFlow) override;
+  virtual void SetInitialChildList(ChildListID     aListID,
+                                   nsFrameList&    aChildList) override;
+#ifdef DEBUG_FRAME_DUMP
+  virtual nsresult GetFrameName(nsAString& aResult) const override;
+#endif
+  virtual nsIAtom* GetType() const override;
+
+  bool IsFloating() const { return GetStateBits() & NS_FRAME_OUT_OF_FLOW; }
+
+  virtual bool IsFrameOfType(uint32_t aFlags) const override
+  {
+    if (!IsFloating())
+      aFlags = aFlags & ~(nsIFrame::eLineParticipant);
+    return nsContainerFrame::IsFrameOfType(aFlags &
+      ~(nsIFrame::eBidiInlineContainer));
+  }
+
+  virtual nscoord GetMinISize(nsRenderingContext *aRenderingContext) override;
+  virtual nscoord GetPrefISize(nsRenderingContext *aRenderingContext) override;
+  virtual void AddInlineMinISize(nsRenderingContext *aRenderingContext,
+                                 InlineMinISizeData *aData) override;
+  virtual void AddInlinePrefISize(nsRenderingContext *aRenderingContext,
+                                  InlinePrefISizeData *aData) override;
+
+  virtual mozilla::LogicalSize
+  ComputeSize(nsRenderingContext *aRenderingContext,
+              mozilla::WritingMode aWritingMode,
+              const mozilla::LogicalSize& aCBSize,
+              nscoord aAvailableISize,
+              const mozilla::LogicalSize& aMargin,
+              const mozilla::LogicalSize& aBorder,
+              const mozilla::LogicalSize& aPadding,
+              ComputeSizeFlags aFlags) override;
+
+  virtual void Reflow(nsPresContext*           aPresContext,
+                      ReflowOutput&     aDesiredSize,
+                      const ReflowInput& aReflowInput,
+                      nsReflowStatus&          aStatus) override;
+
+  virtual bool CanContinueTextRun() const override;
+  virtual nscoord GetLogicalBaseline(mozilla::WritingMode aWritingMode) const override;
+  virtual LogicalSides GetLogicalSkipSides(const ReflowInput* aReflowInput = nullptr) const override;
+
+//override of nsFrame method
+  virtual nsresult GetChildFrameContainingOffset(int32_t inContentOffset,
+                                                 bool inHint,
+                                                 int32_t* outFrameContentOffset,
+                                                 nsIFrame** outChildFrame) override;
+
+  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.
+  nsresult CreateContinuationForFloatingParent(nsPresContext* aPresContext,
+                                               nsIFrame* aChild,
+                                               nsIFrame** aContinuation,
+                                               bool aIsFluid);
+
+protected:
+  nscoord mBaseline;
+
+  void DrainOverflowFrames(nsPresContext* aPresContext);
+};
+
+#endif /* nsFirstLetterFrame_h__ */