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nsGfxButtonControlFrame.h
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00002 /* ***** BEGIN LICENSE BLOCK *****
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00015  * The Original Code is mozilla.org code.
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00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
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00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
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00037 
00038 #ifndef nsGfxButtonControlFrame_h___
00039 #define nsGfxButtonControlFrame_h___
00040 
00041 #include "nsFormControlFrame.h"
00042 #include "nsHTMLButtonControlFrame.h"
00043 #include "nsCOMPtr.h"
00044 #include "nsIAnonymousContentCreator.h"
00045 #include "nsITextContent.h"
00046 
00047 #ifdef ACCESSIBILITY
00048 class nsIAccessible;
00049 #endif
00050 
00051 // Class which implements the input[type=button, reset, submit] and
00052 // browse button for input[type=file].
00053 // The label for button is specified through generated content
00054 // in the ua.css file.
00055 
00056 class nsGfxButtonControlFrame : public nsHTMLButtonControlFrame,
00057                                 public nsIAnonymousContentCreator
00058 {
00059 public:
00060   nsGfxButtonControlFrame();
00061 
00062      //nsIFrame
00063   NS_IMETHOD Reflow(nsPresContext*          aCX,
00064                     nsHTMLReflowMetrics&     aDesiredSize,
00065                     const nsHTMLReflowState& aReflowState,
00066                     nsReflowStatus&          aStatus);
00067   virtual const nsIID& GetCID();
00068   virtual const nsIID& GetIID();
00069 
00070   NS_IMETHOD HandleEvent(nsPresContext* aPresContext, 
00071                          nsGUIEvent* aEvent,
00072                          nsEventStatus* aEventStatus);
00073 
00074  
00075 #ifdef ACCESSIBILITY
00076   NS_IMETHOD GetAccessible(nsIAccessible** aAccessible);
00077 #endif
00078 
00079   virtual nsIAtom* GetType() const;
00080 
00081    // nsFormControlFrame
00082   NS_IMETHOD SetSuggestedSize(nscoord aWidth, nscoord aHeight);
00083 #ifdef DEBUG
00084   NS_IMETHOD GetFrameName(nsAString& aResult) const;
00085 #endif
00086   NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
00087 
00088  
00089   // nsIAnonymousContentCreator
00090   NS_IMETHOD CreateAnonymousContent(nsPresContext* aPresContext,
00091                                     nsISupportsArray& aChildList);
00092   NS_IMETHOD CreateFrameFor(nsPresContext*   aPresContext,
00093                             nsIContent *      aContent,
00094                             nsIFrame**        aFrame);
00095 
00096   NS_IMETHOD AttributeChanged(nsIContent*     aChild,
00097                               PRInt32         aNameSpaceID,
00098                               nsIAtom*        aAttribute,
00099                               PRInt32         aModType);
00100 
00101   virtual PRBool IsLeaf() const;
00102   
00103 protected:
00104   NS_IMETHOD AddComputedBorderPaddingToDesiredSize(nsHTMLReflowMetrics& aDesiredSize,
00105                                                    const nsHTMLReflowState& aSuggestedReflowState);
00106   nsresult GetDefaultLabel(nsXPIDLString& aLabel);
00107 
00108   nsresult GetLabel(nsXPIDLString& aLabel);
00109 
00110   PRBool IsFileBrowseButton(PRInt32 type); // Browse button of file input
00111 
00112 private:
00113   NS_IMETHOD_(nsrefcnt) AddRef() { return NS_OK; }
00114   NS_IMETHOD_(nsrefcnt) Release() { return NS_OK; }
00115 
00116   nscoord mSuggestedWidth;
00117   nscoord mSuggestedHeight;
00118   nsCOMPtr<nsITextContent> mTextContent;
00119 };
00120 
00121 
00122 #endif
00123