The Tor Browser: layout/generic/nsFirstLetterFrame.h@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     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/. */

     6 #ifndef nsFirstLetterFrame_h__

     7 #define nsFirstLetterFrame_h__

     9 /* rendering object for CSS :first-letter pseudo-element */

    11 #include "mozilla/Attributes.h"

    12 #include "nsContainerFrame.h"

    14 class nsFirstLetterFrame MOZ_FINAL : public nsContainerFrame {

    15 public:

    16   NS_DECL_QUERYFRAME_TARGET(nsFirstLetterFrame)

    17   NS_DECL_QUERYFRAME

    18   NS_DECL_FRAMEARENA_HELPERS

    20   nsFirstLetterFrame(nsStyleContext* aContext) : nsContainerFrame(aContext) {}

    22   virtual void BuildDisplayList(nsDisplayListBuilder*   aBuilder,

    23                                 const nsRect&           aDirtyRect,

    24                                 const nsDisplayListSet& aLists) MOZ_OVERRIDE;

    26   virtual void Init(nsIContent*      aContent,

    27                     nsIFrame*        aParent,

    28                     nsIFrame*        aPrevInFlow) MOZ_OVERRIDE;

    29   virtual nsresult SetInitialChildList(ChildListID     aListID,

    30                                        nsFrameList&    aChildList) MOZ_OVERRIDE;

    31 #ifdef DEBUG_FRAME_DUMP

    32   virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;

    33 #endif

    34   virtual nsIAtom* GetType() const MOZ_OVERRIDE;

    36   bool IsFloating() const { return GetStateBits() & NS_FRAME_OUT_OF_FLOW; }

    38   virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE

    39   {

    40     if (!IsFloating())

    41       aFlags = aFlags & ~(nsIFrame::eLineParticipant);

    42     return nsContainerFrame::IsFrameOfType(aFlags &

    43       ~(nsIFrame::eBidiInlineContainer));

    44   }

    46   virtual nscoord GetMinWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;

    47   virtual nscoord GetPrefWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;

    48   virtual void AddInlineMinWidth(nsRenderingContext *aRenderingContext,

    49                                  InlineMinWidthData *aData) MOZ_OVERRIDE;

    50   virtual void AddInlinePrefWidth(nsRenderingContext *aRenderingContext,

    51                                   InlinePrefWidthData *aData) MOZ_OVERRIDE;

    52   virtual nsSize ComputeSize(nsRenderingContext *aRenderingContext,

    53                              nsSize aCBSize, nscoord aAvailableWidth,

    54                              nsSize aMargin, nsSize aBorder, nsSize aPadding,

    55                              uint32_t aFlags) MOZ_OVERRIDE;

    56   virtual nsresult Reflow(nsPresContext*           aPresContext,

    57                           nsHTMLReflowMetrics&     aDesiredSize,

    58                           const nsHTMLReflowState& aReflowState,

    59                           nsReflowStatus&          aStatus) MOZ_OVERRIDE;

    61   virtual bool CanContinueTextRun() const MOZ_OVERRIDE;

    62   virtual nscoord GetBaseline() const MOZ_OVERRIDE;

    63   virtual int GetLogicalSkipSides(const nsHTMLReflowState* aReflowState = nullptr) const MOZ_OVERRIDE;

    65 //override of nsFrame method

    66   virtual nsresult GetChildFrameContainingOffset(int32_t inContentOffset,

    67                                                  bool inHint,

    68                                                  int32_t* outFrameContentOffset,

    69                                                  nsIFrame** outChildFrame) MOZ_OVERRIDE;

    71   nscoord GetFirstLetterBaseline() const { return mBaseline; }

    73   // For floating first letter frames, create a continuation for aChild and

    74   // place it in the correct place. aContinuation is an outparam for the

    75   // continuation that is created. aIsFluid determines if the continuation is

    76   // fluid or not.

    77   nsresult CreateContinuationForFloatingParent(nsPresContext* aPresContext,

    78                                                nsIFrame* aChild,

    79                                                nsIFrame** aContinuation,

    80                                                bool aIsFluid);

    82 protected:

    83   nscoord mBaseline;

    85   void DrainOverflowFrames(nsPresContext* aPresContext);

    86 };

    88 #endif /* nsFirstLetterFrame_h__ */

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