1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/xul/nsScrollbarFrame.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,90 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +//
1.10 +// nsScrollbarFrame
1.11 +//
1.12 +
1.13 +#ifndef nsScrollbarFrame_h__
1.14 +#define nsScrollbarFrame_h__
1.15 +
1.16 +#include "mozilla/Attributes.h"
1.17 +#include "nsBoxFrame.h"
1.18 +
1.19 +class nsIScrollbarMediator;
1.20 +
1.21 +nsIFrame* NS_NewScrollbarFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
1.22 +
1.23 +class nsScrollbarFrame : public nsBoxFrame
1.24 +{
1.25 +public:
1.26 + nsScrollbarFrame(nsIPresShell* aShell, nsStyleContext* aContext):
1.27 + nsBoxFrame(aShell, aContext), mScrollbarMediator(nullptr) {}
1.28 +
1.29 + NS_DECL_QUERYFRAME_TARGET(nsScrollbarFrame)
1.30 +
1.31 +#ifdef DEBUG_FRAME_DUMP
1.32 + virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE {
1.33 + return MakeFrameName(NS_LITERAL_STRING("ScrollbarFrame"), aResult);
1.34 + }
1.35 +#endif
1.36 +
1.37 + // nsIFrame overrides
1.38 + virtual nsresult AttributeChanged(int32_t aNameSpaceID,
1.39 + nsIAtom* aAttribute,
1.40 + int32_t aModType) MOZ_OVERRIDE;
1.41 +
1.42 + NS_DECL_QUERYFRAME
1.43 + NS_DECL_FRAMEARENA_HELPERS
1.44 +
1.45 + NS_IMETHOD HandlePress(nsPresContext* aPresContext,
1.46 + mozilla::WidgetGUIEvent* aEvent,
1.47 + nsEventStatus* aEventStatus) MOZ_OVERRIDE;
1.48 +
1.49 + NS_IMETHOD HandleMultiplePress(nsPresContext* aPresContext,
1.50 + mozilla::WidgetGUIEvent* aEvent,
1.51 + nsEventStatus* aEventStatus,
1.52 + bool aControlHeld) MOZ_OVERRIDE;
1.53 +
1.54 + NS_IMETHOD HandleDrag(nsPresContext* aPresContext,
1.55 + mozilla::WidgetGUIEvent* aEvent,
1.56 + nsEventStatus* aEventStatus) MOZ_OVERRIDE;
1.57 +
1.58 + NS_IMETHOD HandleRelease(nsPresContext* aPresContext,
1.59 + mozilla::WidgetGUIEvent* aEvent,
1.60 + nsEventStatus* aEventStatus) MOZ_OVERRIDE;
1.61 +
1.62 + virtual void Init(nsIContent* aContent,
1.63 + nsIFrame* aParent,
1.64 + nsIFrame* aPrevInFlow) MOZ_OVERRIDE;
1.65 +
1.66 + virtual nsresult Reflow(nsPresContext* aPresContext,
1.67 + nsHTMLReflowMetrics& aDesiredSize,
1.68 + const nsHTMLReflowState& aReflowState,
1.69 + nsReflowStatus& aStatus) MOZ_OVERRIDE;
1.70 +
1.71 + virtual nsIAtom* GetType() const MOZ_OVERRIDE;
1.72 +
1.73 + void SetScrollbarMediatorContent(nsIContent* aMediator);
1.74 + nsIScrollbarMediator* GetScrollbarMediator();
1.75 +
1.76 + // nsBox methods
1.77 +
1.78 + /**
1.79 + * Treat scrollbars as clipping their children; overflowing children
1.80 + * will not be allowed to set an overflow rect on this
1.81 + * frame. This means that when the scroll code decides to hide a
1.82 + * scrollframe by setting its height or width to zero, that will
1.83 + * hide the children too.
1.84 + */
1.85 + virtual bool DoesClipChildren() MOZ_OVERRIDE { return true; }
1.86 +
1.87 + virtual nsresult GetMargin(nsMargin& aMargin) MOZ_OVERRIDE;
1.88 +
1.89 +private:
1.90 + nsCOMPtr<nsIContent> mScrollbarMediator;
1.91 +}; // class nsScrollbarFrame
1.92 +
1.93 +#endif
