nsHTMLButtonControlFrame.h

Enable keyboard shortcuts

/* -*- 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 "nsContainerFrame.h"

#include "nsCSSRenderingBorders.h"

#include "nsIFormControlFrame.h"

class gfxContext;

class nsPresContext;

class nsHTMLButtonControlFrame : public nsContainerFrame,

                                 public nsIFormControlFrame {

 public:

  explicit nsHTMLButtonControlFrame(ComputedStyle* aStyle,

                                    nsPresContext* aPresContext)

      : nsHTMLButtonControlFrame(aStyle, aPresContext, kClassID) {}

  ~nsHTMLButtonControlFrame();

  NS_DECL_QUERYFRAME

  NS_DECL_FRAMEARENA_HELPERS(nsHTMLButtonControlFrame)

  void BuildDisplayList(nsDisplayListBuilder* aBuilder,

                        const nsDisplayListSet& aLists) override;

  nscoord GetMinISize(gfxContext* aRenderingContext) override;

  nscoord GetPrefISize(gfxContext* aRenderingContext) override;

  void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,

              const ReflowInput& aReflowInput,

              nsReflowStatus& aStatus) override;

  Maybe<nscoord> GetNaturalBaselineBOffset(

      mozilla::WritingMode aWM, BaselineSharingGroup aBaselineGroup,

      BaselineExportContext aExportContext) const override;

  nsresult HandleEvent(nsPresContext* aPresContext,

                       mozilla::WidgetGUIEvent* aEvent,

                       nsEventStatus* aEventStatus) override;

  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

  void AppendFrames(ChildListID aListID, nsFrameList&& aFrameList) override;

  void InsertFrames(ChildListID aListID, nsIFrame* aPrevFrame,

                    const nsLineList::iterator* aPrevFrameLine,

                    nsFrameList&& aFrameList) override;

  void RemoveFrame(DestroyContext&, ChildListID, nsIFrame*) override;

#endif

#ifdef ACCESSIBILITY

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

#endif

#ifdef DEBUG_FRAME_DUMP

  nsresult GetFrameName(nsAString& aResult) const override {

    return MakeFrameName(u"HTMLButtonControl"_ns, aResult);

#endif

  // nsIFormControlFrame

  void SetFocus(bool aOn, bool aRepaint) override;

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

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

  nsContainerFrame* GetContentInsertionFrame() override {

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

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

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

  mozilla::Maybe<nsCSSBorderRenderer> CreateInnerFocusBorderRenderer(

      nsDisplayListBuilder* aBuilder, gfxContext* aRenderingContext,

      const nsRect& aDirtyRect, const nsRect& aRect, bool* aBorderIsEmpty);

  void PaintInnerFocusBorder(nsDisplayListBuilder* aBuilder,

                             gfxContext& aRenderingContext,

                             const nsRect& aDirtyRect, const nsRect& aRect);

 protected:

  nsHTMLButtonControlFrame(ComputedStyle* aStyle, nsPresContext* aPresContext,

                           nsIFrame::ClassID aID);

  // 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() const;

  // 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);

  BaselineSharingGroup GetDefaultBaselineSharingGroup() const override;

  nscoord SynthesizeFallbackBaseline(

      mozilla::WritingMode aWM,

      BaselineSharingGroup aBaselineGroup) const override;

  RefPtr<mozilla::ComputedStyle> mInnerFocusStyle;

};

#endif