gecko-dev/dom/html/nsIRadioVisitor.h
2015-05-03 15:32:37 -04:00

44 lines
1.5 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsIRadioVisitor_h___
#define nsIRadioVisitor_h___
#include "nsISupports.h"
class nsIFormControl;
// IID for the nsIRadioControl interface
#define NS_IRADIOVISITOR_IID \
{ 0xc6bed232, 0x1181, 0x4ab2, \
{ 0xa1, 0xda, 0x55, 0xc2, 0x13, 0x6d, 0xea, 0x3d } }
/**
* This interface is used for the text control frame to store its value away
* into the content.
*/
class nsIRadioVisitor : public nsISupports {
public:
NS_DECLARE_STATIC_IID_ACCESSOR(NS_IRADIOVISITOR_IID)
/**
* Visit a node in the tree. This is meant to be called on all radios in a
* group, sequentially. (Each radio group implementor may define
* sequentially in their own way, it just has to be the same every time.)
* Currently all radio groups are ordered in the order they appear in the
* document. Radio group implementors should honor the return value of the
* method and stop iterating if the return value is false.
*
* @param aRadio the radio button in question (must be nullptr and QI'able to
* nsIRadioControlElement)
*/
virtual bool Visit(nsIFormControl* aRadio) = 0;
};
NS_DEFINE_STATIC_IID_ACCESSOR(nsIRadioVisitor, NS_IRADIOVISITOR_IID)
#endif // nsIRadioVisitor_h___