gecko-dev/layout/forms/nsIRadioControlFrame.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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* The Original Code is mozilla.org code.
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#ifndef nsIRadioControlFrame_h___
#define nsIRadioControlFrame_h___
#include "nsISupports.h"
class nsIStyleContext;
// IID for the nsIRadioControlFrame class
// {06450E00-24D9-11d3-966B-00105A1B1B76}
#define NS_IRADIOCONTROLFRAME_IID \
{ 0x6450e00, 0x24d9, 0x11d3, \
{ 0x96, 0x6b, 0x0, 0x10, 0x5a, 0x1b, 0x1b, 0x76 } }
/**
* nsIRadioControlFrame is the common interface radio buttons.
* @see nsFromControlFrame and its base classes for more info
*/
class nsIRadioControlFrame : public nsISupports {
public:
NS_DEFINE_STATIC_IID_ACCESSOR(NS_IRADIOCONTROLFRAME_IID)
/**
* Sets the Pseudo Style Contexts for the Radio button
*
*/
NS_IMETHOD SetRadioButtonFaceStyleContext(nsIStyleContext *aRadioButtonFaceStyleContext) = 0;
/**
* When a user clicks on a radiobutton the value needs to be set after the onmouseup
* and before the onclick event is processed via script. The EVM always lets script
* get first crack at the processing, and script can cancel further processing of
* the event by return null.
*
* This means the radiobutton needs to have it's new value set before it goes to script
* to process the onclick and then if script cancels the event it needs to be set back.
* In Nav and IE there is a flash of it being set and then unset
*
* We have added this extra method to the radiobutton so nsHTMLInputElement can get
* the content of the currently selected radiobutton for that radio group
*
* That way if it is cancelled then the original radiobutton can be set back
*/
NS_IMETHOD GetRadioGroupSelectedContent(nsIContent ** aRadioBtn) = 0;
};
#endif