1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/xul/nsSliderFrame.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,185 @@
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 +#ifndef nsSliderFrame_h__
1.10 +#define nsSliderFrame_h__
1.11 +
1.12 +#include "mozilla/Attributes.h"
1.13 +#include "nsRepeatService.h"
1.14 +#include "nsBoxFrame.h"
1.15 +#include "nsIAtom.h"
1.16 +#include "nsCOMPtr.h"
1.17 +#include "nsITimer.h"
1.18 +#include "nsIDOMEventListener.h"
1.19 +
1.20 +class nsString;
1.21 +class nsITimer;
1.22 +class nsSliderFrame;
1.23 +
1.24 +nsIFrame* NS_NewSliderFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
1.25 +
1.26 +class nsSliderMediator : public nsIDOMEventListener
1.27 +{
1.28 +public:
1.29 +
1.30 + NS_DECL_ISUPPORTS
1.31 +
1.32 + nsSliderFrame* mSlider;
1.33 +
1.34 + nsSliderMediator(nsSliderFrame* aSlider) { mSlider = aSlider; }
1.35 + virtual ~nsSliderMediator() {}
1.36 +
1.37 + virtual void SetSlider(nsSliderFrame* aSlider) { mSlider = aSlider; }
1.38 +
1.39 + NS_IMETHOD HandleEvent(nsIDOMEvent* aEvent) MOZ_OVERRIDE;
1.40 +};
1.41 +
1.42 +class nsSliderFrame : public nsBoxFrame
1.43 +{
1.44 +public:
1.45 + NS_DECL_FRAMEARENA_HELPERS
1.46 +
1.47 + friend class nsSliderMediator;
1.48 +
1.49 + nsSliderFrame(nsIPresShell* aShell, nsStyleContext* aContext);
1.50 + virtual ~nsSliderFrame();
1.51 +
1.52 +#ifdef DEBUG_FRAME_DUMP
1.53 + virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE {
1.54 + return MakeFrameName(NS_LITERAL_STRING("SliderFrame"), aResult);
1.55 + }
1.56 +#endif
1.57 +
1.58 + virtual nsSize GetPrefSize(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
1.59 + virtual nsSize GetMinSize(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
1.60 + virtual nsSize GetMaxSize(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
1.61 + NS_IMETHOD DoLayout(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
1.62 +
1.63 + // nsIFrame overrides
1.64 + virtual nsresult AppendFrames(ChildListID aListID,
1.65 + nsFrameList& aFrameList) MOZ_OVERRIDE;
1.66 +
1.67 + virtual nsresult InsertFrames(ChildListID aListID,
1.68 + nsIFrame* aPrevFrame,
1.69 + nsFrameList& aFrameList) MOZ_OVERRIDE;
1.70 +
1.71 + virtual nsresult RemoveFrame(ChildListID aListID,
1.72 + nsIFrame* aOldFrame) MOZ_OVERRIDE;
1.73 +
1.74 + virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
1.75 +
1.76 + virtual void BuildDisplayListForChildren(nsDisplayListBuilder* aBuilder,
1.77 + const nsRect& aDirtyRect,
1.78 + const nsDisplayListSet& aLists) MOZ_OVERRIDE;
1.79 +
1.80 + virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
1.81 + const nsRect& aDirtyRect,
1.82 + const nsDisplayListSet& aLists) MOZ_OVERRIDE;
1.83 +
1.84 + virtual nsresult AttributeChanged(int32_t aNameSpaceID,
1.85 + nsIAtom* aAttribute,
1.86 + int32_t aModType) MOZ_OVERRIDE;
1.87 +
1.88 + virtual void Init(nsIContent* aContent,
1.89 + nsIFrame* aParent,
1.90 + nsIFrame* asPrevInFlow) MOZ_OVERRIDE;
1.91 +
1.92 +
1.93 + virtual nsresult HandleEvent(nsPresContext* aPresContext,
1.94 + mozilla::WidgetGUIEvent* aEvent,
1.95 + nsEventStatus* aEventStatus) MOZ_OVERRIDE;
1.96 +
1.97 + virtual nsresult SetInitialChildList(ChildListID aListID,
1.98 + nsFrameList& aChildList) MOZ_OVERRIDE;
1.99 +
1.100 + virtual nsIAtom* GetType() const MOZ_OVERRIDE;
1.101 +
1.102 + nsresult StartDrag(nsIDOMEvent* aEvent);
1.103 +
1.104 + static int32_t GetCurrentPosition(nsIContent* content);
1.105 + static int32_t GetMinPosition(nsIContent* content);
1.106 + static int32_t GetMaxPosition(nsIContent* content);
1.107 + static int32_t GetIncrement(nsIContent* content);
1.108 + static int32_t GetPageIncrement(nsIContent* content);
1.109 + static int32_t GetIntegerAttribute(nsIContent* content, nsIAtom* atom, int32_t defaultValue);
1.110 + void EnsureOrient();
1.111 +
1.112 + NS_IMETHOD HandlePress(nsPresContext* aPresContext,
1.113 + mozilla::WidgetGUIEvent* aEvent,
1.114 + nsEventStatus* aEventStatus) MOZ_OVERRIDE;
1.115 +
1.116 + NS_IMETHOD HandleMultiplePress(nsPresContext* aPresContext,
1.117 + mozilla::WidgetGUIEvent* aEvent,
1.118 + nsEventStatus* aEventStatus,
1.119 + bool aControlHeld) MOZ_OVERRIDE
1.120 + {
1.121 + return NS_OK;
1.122 + }
1.123 +
1.124 + NS_IMETHOD HandleDrag(nsPresContext* aPresContext,
1.125 + mozilla::WidgetGUIEvent* aEvent,
1.126 + nsEventStatus* aEventStatus) MOZ_OVERRIDE
1.127 + {
1.128 + return NS_OK;
1.129 + }
1.130 +
1.131 + NS_IMETHOD HandleRelease(nsPresContext* aPresContext,
1.132 + mozilla::WidgetGUIEvent* aEvent,
1.133 + nsEventStatus* aEventStatus) MOZ_OVERRIDE;
1.134 +
1.135 +private:
1.136 +
1.137 + bool GetScrollToClick();
1.138 + nsIFrame* GetScrollbar();
1.139 + bool ShouldScrollForEvent(mozilla::WidgetGUIEvent* aEvent);
1.140 + bool ShouldScrollToClickForEvent(mozilla::WidgetGUIEvent* aEvent);
1.141 + bool IsEventOverThumb(mozilla::WidgetGUIEvent* aEvent);
1.142 +
1.143 + void PageUpDown(nscoord change);
1.144 + void SetCurrentThumbPosition(nsIContent* aScrollbar, nscoord aNewPos, bool aIsSmooth,
1.145 + bool aMaySnap);
1.146 + void SetCurrentPosition(nsIContent* aScrollbar, int32_t aNewPos, bool aIsSmooth);
1.147 + void SetCurrentPositionInternal(nsIContent* aScrollbar, int32_t pos,
1.148 + bool aIsSmooth);
1.149 + void CurrentPositionChanged();
1.150 +
1.151 + void DragThumb(bool aGrabMouseEvents);
1.152 + void AddListener();
1.153 + void RemoveListener();
1.154 + bool isDraggingThumb();
1.155 +
1.156 + void StartRepeat() {
1.157 + nsRepeatService::GetInstance()->Start(Notify, this);
1.158 + }
1.159 + void StopRepeat() {
1.160 + nsRepeatService::GetInstance()->Stop(Notify, this);
1.161 + }
1.162 + void Notify();
1.163 + static void Notify(void* aData) {
1.164 + (static_cast<nsSliderFrame*>(aData))->Notify();
1.165 + }
1.166 +
1.167 + nsPoint mDestinationPoint;
1.168 + nsRefPtr<nsSliderMediator> mMediator;
1.169 +
1.170 + float mRatio;
1.171 +
1.172 + nscoord mDragStart;
1.173 + nscoord mThumbStart;
1.174 +
1.175 + int32_t mCurPos;
1.176 +
1.177 + nscoord mChange;
1.178 +
1.179 + // true if an attribute change has been caused by the user manipulating the
1.180 + // slider. This allows notifications to tell how a slider's current position
1.181 + // was changed.
1.182 + bool mUserChanged;
1.183 +
1.184 + static bool gMiddlePref;
1.185 + static int32_t gSnapMultiplier;
1.186 +}; // class nsSliderFrame
1.187 +
1.188 +#endif
