nsNumberControlFrame.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 nsNumberControlFrame_h__

#define nsNumberControlFrame_h__

#include "mozilla/Attributes.h"

#include "nsContainerFrame.h"

#include "nsTextControlFrame.h"

#include "nsIFormControlFrame.h"

#include "nsIAnonymousContentCreator.h"

#include "nsCOMPtr.h"

class nsITextControlFrame;

class nsPresContext;

namespace mozilla {

enum class PseudoStyleType : uint8_t;

class PresShell;

class WidgetEvent;

class WidgetGUIEvent;

namespace dom {

class HTMLInputElement;

}  // namespace dom

}  // namespace mozilla

/**

 * This frame type is used for <input type=number>.

 * TODO(emilio): Maybe merge with nsTextControlFrame?

*/

class nsNumberControlFrame final : public nsTextControlFrame {

  friend nsIFrame* NS_NewNumberControlFrame(mozilla::PresShell* aPresShell,

                                            ComputedStyle* aStyle);

  typedef mozilla::PseudoStyleType PseudoStyleType;

  typedef mozilla::dom::Element Element;

  typedef mozilla::dom::HTMLInputElement HTMLInputElement;

  typedef mozilla::WidgetEvent WidgetEvent;

  typedef mozilla::WidgetGUIEvent WidgetGUIEvent;

  explicit nsNumberControlFrame(ComputedStyle* aStyle,

                                nsPresContext* aPresContext);

 public:

  NS_DECL_QUERYFRAME

  NS_DECL_FRAMEARENA_HELPERS(nsNumberControlFrame)

  void Destroy(DestroyContext&) override;

#ifdef ACCESSIBILITY

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

#endif

  // nsIAnonymousContentCreator

  nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements) override;

  void AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,

                                uint32_t aFilter) override;

#ifdef DEBUG_FRAME_DUMP

  nsresult GetFrameName(nsAString& aResult) const override {

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

#endif

/**

   * If the frame is the frame for an nsNumberControlFrame's up or down spin

   * button, returns the nsNumberControlFrame. Else returns nullptr.

*/

  static nsNumberControlFrame* GetNumberControlFrameForSpinButton(

      nsIFrame* aFrame);

  enum SpinButtonEnum { eSpinButtonNone, eSpinButtonUp, eSpinButtonDown };

/**

   * Returns one of the SpinButtonEnum values to depending on whether the

   * pointer event is over the spin-up button, the spin-down button, or

   * neither.

*/

  int32_t GetSpinButtonForPointerEvent(WidgetGUIEvent* aEvent) const;

  void SpinnerStateChanged() const;

  bool SpinnerUpButtonIsDepressed() const;

  bool SpinnerDownButtonIsDepressed() const;

/**

   * Our element had HTMLInputElement::Select() called on it.

*/

  void HandleSelectCall();

  bool ShouldUseNativeStyleForSpinner() const;

 private:

  // See nsNumberControlFrame::CreateAnonymousContent for a description of

  // these.

  nsCOMPtr<Element> mSpinBox;

  nsCOMPtr<Element> mSpinUp;

  nsCOMPtr<Element> mSpinDown;

};

#endif  // nsNumberControlFrame_h__