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 nsFormControlFrame_h___
michael@0: #define nsFormControlFrame_h___
michael@0: 
michael@0: #include "mozilla/Attributes.h"
michael@0: #include "nsIFormControlFrame.h"
michael@0: #include "nsLeafFrame.h"
michael@0: 
michael@0: /** 
michael@0:  * nsFormControlFrame is the base class for radio buttons and
michael@0:  * checkboxes.  It also has two static methods (RegUnRegAccessKey and
michael@0:  * GetScreenHeight) that are used by other form controls.
michael@0:  */
michael@0: class nsFormControlFrame : public nsLeafFrame,
michael@0:                            public nsIFormControlFrame
michael@0: {
michael@0: public:
michael@0:   /**
michael@0:     * Main constructor
michael@0:     * @param aContent the content representing this frame
michael@0:     * @param aParentFrame the parent frame
michael@0:     */
michael@0:   nsFormControlFrame(nsStyleContext*);
michael@0: 
michael@0:   virtual nsIAtom* GetType() const MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE
michael@0:   {
michael@0:     return nsLeafFrame::IsFrameOfType(aFlags &
michael@0:       ~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock));
michael@0:   }
michael@0: 
michael@0:   NS_DECL_QUERYFRAME
michael@0:   NS_DECL_FRAMEARENA_HELPERS
michael@0: 
michael@0:   /** 
michael@0:     * Respond to a gui event
michael@0:     * @see nsIFrame::HandleEvent
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 nscoord GetBaseline() const MOZ_OVERRIDE;
michael@0: 
michael@0:   /**
michael@0:     * Respond to the request to resize and/or reflow
michael@0:     * @see nsIFrame::Reflow
michael@0:     */
michael@0:   virtual nsresult Reflow(nsPresContext*      aCX,
michael@0:                           nsHTMLReflowMetrics& aDesiredSize,
michael@0:                           const nsHTMLReflowState& aReflowState,
michael@0:                           nsReflowStatus&      aStatus) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
michael@0: 
michael@0:   // new behavior
michael@0: 
michael@0:   virtual void SetFocus(bool aOn = true, bool aRepaint = false) MOZ_OVERRIDE;
michael@0: 
michael@0:   // nsIFormControlFrame
michael@0:   virtual nsresult SetFormProperty(nsIAtom* aName, const nsAString& aValue) MOZ_OVERRIDE;
michael@0: 
michael@0:   // AccessKey Helper function
michael@0:   static nsresult RegUnRegAccessKey(nsIFrame * aFrame, bool aDoReg);
michael@0: 
michael@0:   /**
michael@0:    * Returns the usable screen rect in app units, eg the rect where we can
michael@0:    * draw dropdowns.
michael@0:    */
michael@0:   static nsRect GetUsableScreenRect(nsPresContext* aPresContext);
michael@0: 
michael@0: protected:
michael@0: 
michael@0:   virtual ~nsFormControlFrame();
michael@0: 
michael@0:   virtual nscoord GetIntrinsicWidth() MOZ_OVERRIDE;
michael@0:   virtual nscoord GetIntrinsicHeight() MOZ_OVERRIDE;
michael@0: 
michael@0: //
michael@0: //-------------------------------------------------------------------------------------
michael@0: //  Utility methods for managing checkboxes and radiobuttons
michael@0: //-------------------------------------------------------------------------------------
michael@0: //   
michael@0:    /**
michael@0:     * Get the state of the checked attribute.
michael@0:     * @param aState set to true if the checked attribute is set,
michael@0:     * false if the checked attribute has been removed
michael@0:     */
michael@0: 
michael@0:   void GetCurrentCheckState(bool* aState);
michael@0: };
michael@0: 
michael@0: #endif
michael@0: