The Tor Browser: layout/xul/nsScrollbarButtonFrame.h@8bccb770b82d

     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 /**

     8   Eric D Vaughan

     9   This class lays out its children either vertically or horizontally

    11 **/

    13 #ifndef nsScrollbarButtonFrame_h___

    14 #define nsScrollbarButtonFrame_h___

    16 #include "mozilla/Attributes.h"

    17 #include "nsButtonBoxFrame.h"

    18 #include "nsITimer.h"

    19 #include "nsRepeatService.h"

    21 class nsSliderFrame;

    23 class nsScrollbarButtonFrame : public nsButtonBoxFrame

    24 {

    25 public:

    26   NS_DECL_FRAMEARENA_HELPERS

    28   nsScrollbarButtonFrame(nsIPresShell* aPresShell, nsStyleContext* aContext):

    29     nsButtonBoxFrame(aPresShell, aContext), mCursorOnThis(false) {}

    31   // Overrides

    32   virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;

    34   friend nsIFrame* NS_NewScrollbarButtonFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);

    36   virtual nsresult HandleEvent(nsPresContext* aPresContext,

    37                                mozilla::WidgetGUIEvent* aEvent,

    38                                nsEventStatus* aEventStatus) MOZ_OVERRIDE;

    40   static nsresult GetChildWithTag(nsPresContext* aPresContext,

    41                                   nsIAtom* atom, nsIFrame* start, nsIFrame*& result);

    42   static nsresult GetParentWithTag(nsIAtom* atom, nsIFrame* start, nsIFrame*& result);

    44   bool HandleButtonPress(nsPresContext* aPresContext,

    45                          mozilla::WidgetGUIEvent* aEvent,

    46                          nsEventStatus* aEventStatus);

    48   NS_IMETHOD HandleMultiplePress(nsPresContext* aPresContext,

    49                                  mozilla::WidgetGUIEvent* aEvent,

    50                                  nsEventStatus* aEventStatus,

    51                                  bool aControlHeld) MOZ_OVERRIDE

    52  {

    53    return NS_OK;

    54  }

    56   NS_IMETHOD HandleDrag(nsPresContext* aPresContext,

    57                         mozilla::WidgetGUIEvent* aEvent,

    58                         nsEventStatus* aEventStatus) MOZ_OVERRIDE

    59   {

    60     return NS_OK;

    61   }

    63   NS_IMETHOD HandleRelease(nsPresContext* aPresContext,

    64                            mozilla::WidgetGUIEvent* aEvent,

    65                            nsEventStatus* aEventStatus) MOZ_OVERRIDE;

    67 protected:

    68   virtual void MouseClicked(nsPresContext* aPresContext,

    69                             mozilla::WidgetGUIEvent* aEvent) MOZ_OVERRIDE;

    70   void DoButtonAction(bool aSmoothScroll);

    72   void StartRepeat() {

    73     nsRepeatService::GetInstance()->Start(Notify, this);

    74   }

    75   void StopRepeat() {

    76     nsRepeatService::GetInstance()->Stop(Notify, this);

    77   }

    78   void Notify();

    79   static void Notify(void* aData) {

    80     static_cast<nsScrollbarButtonFrame*>(aData)->Notify();

    81   }

    83   int32_t mIncrement;

    84   bool mCursorOnThis;

    85 };

    87 #endif

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