content/html/content/src/nsDOMValidityState.h
author David Anderson <danderson@mozilla.com>
Wed, 05 Oct 2011 19:52:55 -0700
changeset 111527 8cfeba5239a9e4f20c462d6fb20421b4e4e7c735
parent 111524 cad26d2fb5af799dfe030fd2a8948d617eac2f52
child 112142 7d6904f186bcf0149c2391267b4d7529c7f326a8
permissions -rw-r--r--
Merge to eliminate bad head.

/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * Contributor(s):
 *   Mounir Lamouri <mounir.lamouri@mozilla.com> (original author)
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#ifndef nsDOMValidityState_h__
#define nsDOMValidityState_h__

#include "nsIDOMValidityState.h"
#include "nsIConstraintValidation.h"


class nsDOMValidityState : public nsIDOMValidityState
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSIDOMVALIDITYSTATE

  friend class nsIConstraintValidation;

protected:
  nsDOMValidityState(nsIConstraintValidation* aConstraintValidation);

  /**
   * This function should be called by nsIConstraintValidation
   * to set mConstraintValidation to null to be sure
   * it will not be used when the object is destroyed.
   */
  inline void Disconnect()
  {
    mConstraintValidation = nsnull;
  }

  /**
   * Helper function to get a validity state from constraint validation instance.
   */
  inline bool GetValidityState(nsIConstraintValidation::ValidityStateType aState) const
  {
    return mConstraintValidation &&
           mConstraintValidation->GetValidityState(aState);
  }

  // Weak reference to owner which will call Disconnect() when being destroyed.
  nsIConstraintValidation*       mConstraintValidation;
};

#endif // nsDOMValidityState_h__