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       1             : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* vim: set ts=8 sts=2 et sw=2 tw=80: */
       3             : /* This Source Code Form is subject to the terms of the Mozilla Public
       4             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       5             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       6             : 
       7             : #ifndef _nsRadioVisitor_h__
       8             : #define _nsRadioVisitor_h__
       9             : 
      10             : #include "mozilla/Attributes.h"
      11             : #include "nsIRadioVisitor.h"
      12             : 
      13             : class nsIFormControl;
      14             : 
      15             : /**
      16             :  * nsRadioVisitor is the base class implementing nsIRadioVisitor and inherited
      17             :  * by all radio visitors.
      18             :  */
      19             : class nsRadioVisitor : public nsIRadioVisitor
      20             : {
      21             : protected:
      22           0 :   virtual ~nsRadioVisitor() { }
      23             : 
      24             : public:
      25           0 :   nsRadioVisitor() { }
      26             : 
      27             :   NS_DECL_ISUPPORTS
      28             : 
      29             :   virtual bool Visit(nsIFormControl* aRadio) override = 0;
      30             : };
      31             : 
      32             : /**
      33             :  * The following declarations are radio visitors inheriting from nsRadioVisitor.
      34             :  */
      35             : 
      36             : /**
      37             :  * nsRadioSetCheckedChangedVisitor is calling SetCheckedChanged with the given
      38             :  * parameter to all radio elements in the group.
      39             :  */
      40           0 : class nsRadioSetCheckedChangedVisitor : public nsRadioVisitor
      41             : {
      42             : public:
      43           0 :   explicit nsRadioSetCheckedChangedVisitor(bool aCheckedChanged)
      44           0 :     : mCheckedChanged(aCheckedChanged)
      45           0 :     { }
      46             : 
      47             :   virtual bool Visit(nsIFormControl* aRadio) override;
      48             : 
      49             : protected:
      50             :   bool mCheckedChanged;
      51             : };
      52             : 
      53             : /**
      54             :  * nsRadioGetCheckedChangedVisitor is getting the current checked changed value.
      55             :  * Getting it from one radio element is the group is enough given that all
      56             :  * elements should have the same value.
      57             :  */
      58           0 : class nsRadioGetCheckedChangedVisitor : public nsRadioVisitor
      59             : {
      60             : public:
      61           0 :   nsRadioGetCheckedChangedVisitor(bool* aCheckedChanged,
      62             :                                   nsIFormControl* aExcludeElement)
      63           0 :     : mCheckedChanged(aCheckedChanged)
      64           0 :     , mExcludeElement(aExcludeElement)
      65           0 :     { }
      66             : 
      67             :   virtual bool Visit(nsIFormControl* aRadio) override;
      68             : 
      69             : protected:
      70             :   bool* mCheckedChanged;
      71             :   nsIFormControl* mExcludeElement;
      72             : };
      73             : 
      74             : /**
      75             :  * nsRadioSetValueMissingState is calling SetValueMissingState with the given
      76             :  * parameter to all radio elements in the group.
      77             :  * It is also calling ContentStatesChanged if needed.
      78             :  */
      79           0 : class nsRadioSetValueMissingState : public nsRadioVisitor
      80             : {
      81             : public:
      82           0 :   nsRadioSetValueMissingState(nsIFormControl* aExcludeElement,
      83             :                               bool aValidity, bool aNotify)
      84           0 :     : mExcludeElement(aExcludeElement)
      85             :     , mValidity(aValidity)
      86           0 :     , mNotify(aNotify)
      87           0 :     { }
      88             : 
      89             :   virtual bool Visit(nsIFormControl* aRadio) override;
      90             : 
      91             : protected:
      92             :   nsIFormControl* mExcludeElement;
      93             :   bool mValidity;
      94             :   bool mNotify;
      95             : };
      96             : 
      97           0 : class nsRadioUpdateStateVisitor : public nsRadioVisitor
      98             : {
      99             : public:
     100           0 :   explicit nsRadioUpdateStateVisitor(nsIFormControl* aExcludeElement)
     101           0 :     : mExcludeElement(aExcludeElement)
     102           0 :     { }
     103             : 
     104             :   virtual bool Visit(nsIFormControl* aRadio) override;
     105             : 
     106             : protected:
     107             :   nsIFormControl* mExcludeElement;
     108             : };
     109             : 
     110             : #endif // _nsRadioVisitor_h__
     111             :