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lightning-sunbird  0.9+nobinonly
nsScrollbarFrame.h
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00037 
00038 //
00039 // nsScrollbarFrame
00040 //
00041 
00042 #ifndef nsScrollbarFrame_h__
00043 #define nsScrollbarFrame_h__
00044 
00045 
00046 #include "nsBoxFrame.h"
00047 #include "nsIScrollbarFrame.h"
00048 
00049 class nsISupportsArray;
00050 class nsIScrollbarMediator;
00051 
00052 nsresult NS_NewScrollbarFrame(nsIPresShell* aPresShell, nsIFrame** aResult) ;
00053 
00054 class nsScrollbarFrame : public nsBoxFrame, public nsIScrollbarFrame
00055 {
00056 public:
00057     nsScrollbarFrame(nsIPresShell* aShell):nsBoxFrame(aShell), mScrollbarMediator(nsnull) {}
00058 
00059 #ifdef DEBUG
00060   NS_IMETHOD GetFrameName(nsAString& aResult) const {
00061     return MakeFrameName(NS_LITERAL_STRING("ScrollbarFrame"), aResult);
00062   }
00063 #endif
00064 
00065   // nsIFrame overrides
00066   NS_IMETHOD AttributeChanged(nsIContent* aChild,
00067                               PRInt32 aNameSpaceID,
00068                               nsIAtom* aAttribute,
00069                               PRInt32 aModType);
00070 
00071   NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
00072   NS_IMETHOD_(nsrefcnt) AddRef() { return NS_OK; }
00073   NS_IMETHOD_(nsrefcnt) Release() { return NS_OK; }
00074 
00075    NS_IMETHOD HandlePress(nsPresContext* aPresContext,
00076                          nsGUIEvent *    aEvent,
00077                          nsEventStatus*  aEventStatus);
00078 
00079   NS_IMETHOD HandleMultiplePress(nsPresContext* aPresContext,
00080                          nsGUIEvent *    aEvent,
00081                          nsEventStatus*  aEventStatus);
00082 
00083   NS_IMETHOD HandleDrag(nsPresContext* aPresContext,
00084                         nsGUIEvent *    aEvent,
00085                         nsEventStatus*  aEventStatus);
00086 
00087   NS_IMETHOD HandleRelease(nsPresContext* aPresContext,
00088                            nsGUIEvent *    aEvent,
00089                            nsEventStatus*  aEventStatus);
00090 
00091   NS_IMETHOD Init(nsPresContext*  aPresContext,
00092               nsIContent*      aContent,
00093               nsIFrame*        aParent,
00094               nsStyleContext*  aContext,
00095               nsIFrame*        aPrevInFlow);
00096 
00097   NS_IMETHOD Reflow(nsPresContext*          aPresContext,
00098                     nsHTMLReflowMetrics&     aDesiredSize,
00099                     const nsHTMLReflowState& aReflowState,
00100                     nsReflowStatus&          aStatus);
00101 
00102   virtual PRBool IsContainingBlock() const;
00103 
00104   // nsIScrollbarFrame
00105   NS_IMETHOD SetScrollbarMediator(nsIScrollbarMediator* aMediator);
00106   NS_IMETHOD GetScrollbarMediator(nsIScrollbarMediator** aMediator);
00107 
00108   // nsBox methods
00109 
00117   virtual PRBool DoesClipChildren() { return PR_TRUE; }
00118 
00119 private:
00120   nsCOMPtr<nsIContent> mScrollbarMediator;
00121 }; // class nsScrollbarFrame
00122 
00123 #endif