/* -*- 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 nsHTMLButtonControlFrame_h___

#define nsHTMLButtonControlFrame_h___

#include "mozilla/Attributes.h"

#include "nsContainerFrame.h"

#include "nsIFormControlFrame.h"

#include "nsButtonFrameRenderer.h"

class gfxContext;

class nsPresContext;

class nsHTMLButtonControlFrame : public nsContainerFrame,

                                 public nsIFormControlFrame

{

public:

  explicit nsHTMLButtonControlFrame(ComputedStyle* aStyle)

    : nsHTMLButtonControlFrame(aStyle, kClassID)

  {}

  ~nsHTMLButtonControlFrame();

  virtual void DestroyFrom(nsIFrame* aDestructRoot, PostDestroyData& aPostDestroyData) override;

  NS_DECL_QUERYFRAME

  NS_DECL_FRAMEARENA_HELPERS(nsHTMLButtonControlFrame)

  virtual void BuildDisplayList(nsDisplayListBuilder*   aBuilder,

                                const nsDisplayListSet& aLists) override;

  virtual nscoord GetMinISize(gfxContext *aRenderingContext) override;

  virtual nscoord GetPrefISize(gfxContext *aRenderingContext) override;

  virtual void Reflow(nsPresContext*           aPresContext,

                      ReflowOutput&     aDesiredSize,

                      const ReflowInput& aReflowInput,

                      nsReflowStatus&          aStatus) override;

  bool GetVerticalAlignBaseline(mozilla::WritingMode aWM,

                                nscoord* aBaseline) const override;

  bool GetNaturalBaselineBOffset(mozilla::WritingMode aWM,

                                 BaselineSharingGroup aBaselineGroup,

                                 nscoord* aBaseline) const override;

  virtual nsresult HandleEvent(nsPresContext* aPresContext,

                               mozilla::WidgetGUIEvent* aEvent,

                               nsEventStatus* aEventStatus) override;

  virtual void Init(nsIContent*       aContent,

                    nsContainerFrame* aParent,

                    nsIFrame*         aPrevInFlow) override;

  ComputedStyle* GetAdditionalComputedStyle(int32_t aIndex) const override;

  void SetAdditionalComputedStyle(int32_t aIndex,

                                  ComputedStyle* aComputedStyle) override;

#ifdef DEBUG

  virtual void AppendFrames(ChildListID     aListID,

                            nsFrameList&    aFrameList) override;

  virtual void InsertFrames(ChildListID     aListID,

                            nsIFrame*       aPrevFrame,

                            nsFrameList&    aFrameList) override;

  virtual void RemoveFrame(ChildListID     aListID,

                           nsIFrame*       aOldFrame) override;

#endif

#ifdef ACCESSIBILITY

  virtual mozilla::a11y::AccType AccessibleType() override;

#endif

#ifdef DEBUG_FRAME_DUMP

  virtual nsresult GetFrameName(nsAString& aResult) const override {

    return MakeFrameName(NS_LITERAL_STRING("HTMLButtonControl"), aResult);

  }

#endif

  virtual bool HonorPrintBackgroundSettings() override { return false; }

  // nsIFormControlFrame

  void SetFocus(bool aOn, bool aRepaint) override;

  virtual nsresult SetFormProperty(nsAtom* aName, const nsAString& aValue) override;

  // Inserted child content gets its frames parented by our child block

  virtual nsContainerFrame* GetContentInsertionFrame() override {

    return PrincipalChildList().FirstChild()->GetContentInsertionFrame();

  }

  virtual bool IsFrameOfType(uint32_t aFlags) const override

  {

    return nsContainerFrame::IsFrameOfType(aFlags &

      ~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock));

  }

  // Return the ::-moz-button-content anonymous box.

  void AppendDirectlyOwnedAnonBoxes(nsTArray<OwnedAnonBox>& aResult) override;

protected:

  nsHTMLButtonControlFrame(ComputedStyle* aStyle, nsIFrame::ClassID aID);

  virtual bool IsInput() { return false; }

  // Indicates whether we should clip our children's painting to our

  // border-box (either because of "overflow" or because of legacy reasons

  // about how <input>-flavored buttons work).

  bool ShouldClipPaintingToBorderBox();

  // Reflows the button's sole child frame, and computes the desired size

  // of the button itself from the results.

  void ReflowButtonContents(nsPresContext* aPresContext,

                            ReflowOutput& aButtonDesiredSize,

                            const ReflowInput& aButtonReflowInput,

                            nsIFrame* aFirstKid);

  nsButtonFrameRenderer mRenderer;

};

#endif