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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla Communicator client code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#ifndef nsFirstLetterFrame_h__
#define nsFirstLetterFrame_h__

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

#include "nsHTMLContainerFrame.h"

#define NS_FIRSTLETTER_FRAME_CID \
 { 0x64e918c7, 0x786a, 0x4f5c,{0x93, 0xe0, 0x24, 0x59, 0x64, 0x31, 0xcf, 0x75}}

#define nsFirstLetterFrameSuper nsHTMLContainerFrame

class nsFirstLetterFrame : public nsFirstLetterFrameSuper {
public:
  nsFirstLetterFrame(nsStyleContext* aContext) : nsHTMLContainerFrame(aContext) {}

  // nsISupports overrides
  NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);

  NS_IMETHOD Init(nsIContent*      aContent,
                  nsIFrame*        aParent,
                  nsIFrame*        aPrevInFlow);
  NS_IMETHOD SetInitialChildList(nsIAtom*        aListName,
                                 nsIFrame*       aChildList);
#ifdef NS_DEBUG
  NS_IMETHOD GetFrameName(nsAString& aResult) const;
#endif
  virtual nsIAtom* GetType() const;

  virtual PRBool IsFrameOfType(PRUint32 aFlags) const
  {
    if (!GetStyleDisplay()->IsFloating())
      aFlags = aFlags & ~(nsIFrame::eLineParticipant);
    return nsFirstLetterFrameSuper::IsFrameOfType(aFlags &
      ~(nsIFrame::eBidiInlineContainer));
  }

  virtual nscoord GetMinWidth(nsIRenderingContext *aRenderingContext);
  virtual nscoord GetPrefWidth(nsIRenderingContext *aRenderingContext);
  virtual void AddInlineMinWidth(nsIRenderingContext *aRenderingContext,
                                 InlineMinWidthData *aData);
  virtual void AddInlinePrefWidth(nsIRenderingContext *aRenderingContext,
                                  InlinePrefWidthData *aData);
  virtual nsSize ComputeSize(nsIRenderingContext *aRenderingContext,
                             nsSize aCBSize, nscoord aAvailableWidth,
                             nsSize aMargin, nsSize aBorder, nsSize aPadding,
                             PRBool aShrinkWrap);
  NS_IMETHOD Reflow(nsPresContext*          aPresContext,
                    nsHTMLReflowMetrics&     aDesiredSize,
                    const nsHTMLReflowState& aReflowState,
                    nsReflowStatus&          aStatus);

  virtual PRBool CanContinueTextRun() const;

  NS_IMETHOD SetSelected(nsPresContext* aPresContext, nsIDOMRange *aRange,PRBool aSelected, nsSpread aSpread, SelectionType aType);

//override of nsFrame method
  NS_IMETHOD GetChildFrameContainingOffset(PRInt32 inContentOffset,
                                           PRBool inHint,
                                           PRInt32* outFrameContentOffset,
                                           nsIFrame **outChildFrame);

  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,
                                               PRBool aIsFluid);

protected:
  nscoord mBaseline;

  virtual PRIntn GetSkipSides() const;

  void DrainOverflowFrames(nsPresContext* aPresContext);
};

#endif /* nsFirstLetterFrame_h__ */