gecko-dev/layout/xul/nsScrollbarButtonFrame.h

88 строки
2.8 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/. */
/**
Eric D Vaughan
This class lays out its children either vertically or horizontally
**/
#ifndef nsScrollbarButtonFrame_h___
#define nsScrollbarButtonFrame_h___
#include "mozilla/Attributes.h"
#include "nsButtonBoxFrame.h"
#include "nsITimer.h"
#include "nsRepeatService.h"
class nsSliderFrame;
class nsScrollbarButtonFrame : public nsButtonBoxFrame
{
public:
NS_DECL_FRAMEARENA_HELPERS
nsScrollbarButtonFrame(nsIPresShell* aPresShell, nsStyleContext* aContext):
nsButtonBoxFrame(aPresShell, aContext), mCursorOnThis(false) {}
// Overrides
virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
friend nsIFrame* NS_NewScrollbarButtonFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
virtual nsresult HandleEvent(nsPresContext* aPresContext,
mozilla::WidgetGUIEvent* aEvent,
nsEventStatus* aEventStatus) MOZ_OVERRIDE;
static nsresult GetChildWithTag(nsPresContext* aPresContext,
nsIAtom* atom, nsIFrame* start, nsIFrame*& result);
static nsresult GetParentWithTag(nsIAtom* atom, nsIFrame* start, nsIFrame*& result);
bool HandleButtonPress(nsPresContext* aPresContext,
mozilla::WidgetGUIEvent* aEvent,
nsEventStatus* aEventStatus);
NS_IMETHOD HandleMultiplePress(nsPresContext* aPresContext,
mozilla::WidgetGUIEvent* aEvent,
nsEventStatus* aEventStatus,
bool aControlHeld) MOZ_OVERRIDE
{
return NS_OK;
}
NS_IMETHOD HandleDrag(nsPresContext* aPresContext,
mozilla::WidgetGUIEvent* aEvent,
nsEventStatus* aEventStatus) MOZ_OVERRIDE
{
return NS_OK;
}
NS_IMETHOD HandleRelease(nsPresContext* aPresContext,
mozilla::WidgetGUIEvent* aEvent,
nsEventStatus* aEventStatus) MOZ_OVERRIDE;
protected:
virtual void MouseClicked(nsPresContext* aPresContext,
mozilla::WidgetGUIEvent* aEvent) MOZ_OVERRIDE;
void DoButtonAction(bool aSmoothScroll);
void StartRepeat() {
nsRepeatService::GetInstance()->Start(Notify, this);
}
void StopRepeat() {
nsRepeatService::GetInstance()->Stop(Notify, this);
}
void Notify();
static void Notify(void* aData) {
static_cast<nsScrollbarButtonFrame*>(aData)->Notify();
}
int32_t mIncrement;
bool mCursorOnThis;
};
#endif