michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef nsSliderFrame_h__
michael@0: #define nsSliderFrame_h__
michael@0: 
michael@0: #include "mozilla/Attributes.h"
michael@0: #include "nsRepeatService.h"
michael@0: #include "nsBoxFrame.h"
michael@0: #include "nsIAtom.h"
michael@0: #include "nsCOMPtr.h"
michael@0: #include "nsITimer.h"
michael@0: #include "nsIDOMEventListener.h"
michael@0: 
michael@0: class nsString;
michael@0: class nsITimer;
michael@0: class nsSliderFrame;
michael@0: 
michael@0: nsIFrame* NS_NewSliderFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
michael@0: 
michael@0: class nsSliderMediator : public nsIDOMEventListener
michael@0: {
michael@0: public:
michael@0: 
michael@0:   NS_DECL_ISUPPORTS
michael@0: 
michael@0:   nsSliderFrame* mSlider;
michael@0: 
michael@0:   nsSliderMediator(nsSliderFrame* aSlider) {  mSlider = aSlider; }
michael@0:   virtual ~nsSliderMediator() {}
michael@0: 
michael@0:   virtual void SetSlider(nsSliderFrame* aSlider) { mSlider = aSlider; }
michael@0: 
michael@0:   NS_IMETHOD HandleEvent(nsIDOMEvent* aEvent) MOZ_OVERRIDE;
michael@0: };
michael@0: 
michael@0: class nsSliderFrame : public nsBoxFrame
michael@0: {
michael@0: public:
michael@0:   NS_DECL_FRAMEARENA_HELPERS
michael@0: 
michael@0:   friend class nsSliderMediator;
michael@0: 
michael@0:   nsSliderFrame(nsIPresShell* aShell, nsStyleContext* aContext);
michael@0:   virtual ~nsSliderFrame();
michael@0: 
michael@0: #ifdef DEBUG_FRAME_DUMP
michael@0:   virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE {
michael@0:     return MakeFrameName(NS_LITERAL_STRING("SliderFrame"), aResult);
michael@0:   }
michael@0: #endif
michael@0: 
michael@0:   virtual nsSize GetPrefSize(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
michael@0:   virtual nsSize GetMinSize(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
michael@0:   virtual nsSize GetMaxSize(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
michael@0:   NS_IMETHOD DoLayout(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
michael@0: 
michael@0:   // nsIFrame overrides
michael@0:   virtual nsresult  AppendFrames(ChildListID     aListID,
michael@0:                                  nsFrameList&    aFrameList) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual nsresult  InsertFrames(ChildListID     aListID,
michael@0:                                  nsIFrame*       aPrevFrame,
michael@0:                                  nsFrameList&    aFrameList) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual nsresult  RemoveFrame(ChildListID     aListID,
michael@0:                                 nsIFrame*       aOldFrame) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void BuildDisplayListForChildren(nsDisplayListBuilder*   aBuilder,
michael@0:                                            const nsRect&           aDirtyRect,
michael@0:                                            const nsDisplayListSet& aLists) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void BuildDisplayList(nsDisplayListBuilder*   aBuilder,
michael@0:                                 const nsRect&           aDirtyRect,
michael@0:                                 const nsDisplayListSet& aLists) MOZ_OVERRIDE;
michael@0:  
michael@0:   virtual nsresult AttributeChanged(int32_t aNameSpaceID,
michael@0:                                     nsIAtom* aAttribute,
michael@0:                                     int32_t aModType) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void Init(nsIContent*      aContent,
michael@0:                     nsIFrame*        aParent,
michael@0:                     nsIFrame*        asPrevInFlow) MOZ_OVERRIDE;
michael@0: 
michael@0: 
michael@0:   virtual nsresult HandleEvent(nsPresContext* aPresContext,
michael@0:                                mozilla::WidgetGUIEvent* aEvent,
michael@0:                                nsEventStatus* aEventStatus) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual nsresult SetInitialChildList(ChildListID     aListID,
michael@0:                                        nsFrameList&    aChildList) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual nsIAtom* GetType() const MOZ_OVERRIDE;
michael@0: 
michael@0:   nsresult StartDrag(nsIDOMEvent* aEvent);
michael@0: 
michael@0:   static int32_t GetCurrentPosition(nsIContent* content);
michael@0:   static int32_t GetMinPosition(nsIContent* content);
michael@0:   static int32_t GetMaxPosition(nsIContent* content);
michael@0:   static int32_t GetIncrement(nsIContent* content);
michael@0:   static int32_t GetPageIncrement(nsIContent* content);
michael@0:   static int32_t GetIntegerAttribute(nsIContent* content, nsIAtom* atom, int32_t defaultValue);
michael@0:   void EnsureOrient();
michael@0: 
michael@0:   NS_IMETHOD HandlePress(nsPresContext* aPresContext,
michael@0:                          mozilla::WidgetGUIEvent* aEvent,
michael@0:                          nsEventStatus* aEventStatus) MOZ_OVERRIDE;
michael@0: 
michael@0:   NS_IMETHOD HandleMultiplePress(nsPresContext* aPresContext,
michael@0:                                  mozilla::WidgetGUIEvent* aEvent,
michael@0:                                  nsEventStatus* aEventStatus,
michael@0:                                  bool aControlHeld) MOZ_OVERRIDE
michael@0:   {
michael@0:     return NS_OK;
michael@0:   }
michael@0: 
michael@0:   NS_IMETHOD HandleDrag(nsPresContext* aPresContext,
michael@0:                         mozilla::WidgetGUIEvent* aEvent,
michael@0:                         nsEventStatus* aEventStatus) MOZ_OVERRIDE
michael@0:   {
michael@0:     return NS_OK;
michael@0:   }
michael@0: 
michael@0:   NS_IMETHOD HandleRelease(nsPresContext* aPresContext,
michael@0:                            mozilla::WidgetGUIEvent* aEvent,
michael@0:                            nsEventStatus* aEventStatus) MOZ_OVERRIDE;
michael@0: 
michael@0: private:
michael@0: 
michael@0:   bool GetScrollToClick();
michael@0:   nsIFrame* GetScrollbar();
michael@0:   bool ShouldScrollForEvent(mozilla::WidgetGUIEvent* aEvent);
michael@0:   bool ShouldScrollToClickForEvent(mozilla::WidgetGUIEvent* aEvent);
michael@0:   bool IsEventOverThumb(mozilla::WidgetGUIEvent* aEvent);
michael@0: 
michael@0:   void PageUpDown(nscoord change);
michael@0:   void SetCurrentThumbPosition(nsIContent* aScrollbar, nscoord aNewPos, bool aIsSmooth,
michael@0:                                bool aMaySnap);
michael@0:   void SetCurrentPosition(nsIContent* aScrollbar, int32_t aNewPos, bool aIsSmooth);
michael@0:   void SetCurrentPositionInternal(nsIContent* aScrollbar, int32_t pos,
michael@0:                                   bool aIsSmooth);
michael@0:   void CurrentPositionChanged();
michael@0: 
michael@0:   void DragThumb(bool aGrabMouseEvents);
michael@0:   void AddListener();
michael@0:   void RemoveListener();
michael@0:   bool isDraggingThumb();
michael@0: 
michael@0:   void StartRepeat() {
michael@0:     nsRepeatService::GetInstance()->Start(Notify, this);
michael@0:   }
michael@0:   void StopRepeat() {
michael@0:     nsRepeatService::GetInstance()->Stop(Notify, this);
michael@0:   }
michael@0:   void Notify();
michael@0:   static void Notify(void* aData) {
michael@0:     (static_cast<nsSliderFrame*>(aData))->Notify();
michael@0:   }
michael@0:  
michael@0:   nsPoint mDestinationPoint;
michael@0:   nsRefPtr<nsSliderMediator> mMediator;
michael@0: 
michael@0:   float mRatio;
michael@0: 
michael@0:   nscoord mDragStart;
michael@0:   nscoord mThumbStart;
michael@0: 
michael@0:   int32_t mCurPos;
michael@0: 
michael@0:   nscoord mChange;
michael@0: 
michael@0:   // true if an attribute change has been caused by the user manipulating the
michael@0:   // slider. This allows notifications to tell how a slider's current position
michael@0:   // was changed.
michael@0:   bool mUserChanged;
michael@0: 
michael@0:   static bool gMiddlePref;
michael@0:   static int32_t gSnapMultiplier;
michael@0: }; // class nsSliderFrame
michael@0: 
michael@0: #endif