intl/chardet/src/nsMetaCharsetObserver.h
author kairo@kairo.at
Wed, 18 Jul 2007 13:29:08 -0700
changeset 3637 b80fc9ff2fc97dbde843763e39998d80a6489c5a
parent 1 9b2a99adc05e53cd4010de512f50118594756650
child 23793 8019a959aade2b44d0932435a7af3e42fb3475e7
permissions -rw-r--r--
bug 387450 - remove xpinstall/wizard from cvs, r=luser

/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * for the specific language governing rights and limitations under the
 * License.
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 * The Original Code is mozilla.org code.
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 * The Initial Developer of the Original Code is
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 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
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 *
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#ifndef nsMetaCharsetObserverFactory_h__
#define nsMetaCharsetObserverFactory_h__

#include "nsIFactory.h"
#include "nsIMetaCharsetService.h"
#include "nsIElementObserver.h"
#include "nsIObserver.h"
#include "nsObserverBase.h"
#include "nsWeakReference.h"

//========================================================================== 
//
// Class declaration for the class 
//
//========================================================================== 
class nsMetaCharsetObserver: public nsIElementObserver, 
                             public nsIObserver, 
                             public nsObserverBase,
                             public nsIMetaCharsetService,
                             public nsSupportsWeakReference {
public:
  nsMetaCharsetObserver();
  virtual ~nsMetaCharsetObserver();

  /* methode for nsIElementObserver */

  /*
   *   Subject call observer when the parser hit the tag
   *   @param aDocumentID- ID of the document
   *   @param aTag- the tag
   *   @param numOfAttributes - number of attributes
   *   @param nameArray - array of name. 
   *   @param valueArray - array of value
   */
  NS_IMETHOD Notify(PRUint32 aDocumentID, eHTMLTags aTag, PRUint32 numOfAttributes, 
                    const PRUnichar* nameArray[], const PRUnichar* valueArray[]);
  NS_IMETHOD Notify(PRUint32 aDocumentID, const PRUnichar* aTag, PRUint32 numOfAttributes, 
                    const PRUnichar* nameArray[], const PRUnichar* valueArray[]);

  NS_IMETHOD Notify(nsISupports* aWebShell, 
                    nsISupports* aChannel,
                    const PRUnichar* aTag, 
                    const nsStringArray* keys, 
                    const nsStringArray* values,
                    const PRUint32 aFlags);

  NS_DECL_ISUPPORTS

  /* methode for nsIObserver */
  NS_DECL_NSIOBSERVER

  /* methode for nsIMetaCharsetService */
  NS_IMETHOD Start();
  NS_IMETHOD End();
 
private:

  NS_IMETHOD Notify(PRUint32 aDocumentID, PRUint32 numOfAttributes, 
                    const PRUnichar* nameArray[], const PRUnichar* valueArray[]);

  NS_IMETHOD Notify(nsISupports* aWebShell, 
                    nsISupports* aChannel,
                    const nsStringArray* keys, 
                    const nsStringArray* values);

  NS_IMETHOD GetCharsetFromCompatibilityTag(const nsStringArray* keys, 
                                            const nsStringArray* values, 
                                            nsAString& aCharset);

  nsCOMPtr<nsICharsetAlias> mAlias;

  PRBool bMetaCharsetObserverStarted;
};

#endif // nsMetaCharsetObserverFactory_h__