dom/src/base/nsMimeTypeArray.h
author Jonas Sicking <jonas@sicking.cc>
Wed, 25 Feb 2009 00:20:25 -0800
changeset 23418 4933de6ea0749db930033fcb66d7607a76ee01a7
parent 21159 20165908edd94a97ee7a6cabaa0624aa1f8c5c2c
child 26799 12ca3582430b9caacf41a8230f3faa3663b5a7fb
permissions -rw-r--r--
Backed out changeset 223c4d40bb76 (bug 479521)

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
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 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
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 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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#ifndef nsMimeTypeArray_h___
#define nsMimeTypeArray_h___

#include "nsIDOMMimeTypeArray.h"
#include "nsIDOMMimeType.h"
#include "nsString.h"
#include "nsCOMPtr.h"
#include "nsCOMArray.h"

class nsIDOMNavigator;

class nsMimeTypeArray : public nsIDOMMimeTypeArray
{
public:
  nsMimeTypeArray(nsIDOMNavigator* navigator);
  virtual ~nsMimeTypeArray();

  NS_DECL_ISUPPORTS
  NS_DECL_NSIDOMMIMETYPEARRAY

  nsresult Refresh();

  nsIDOMMimeType* GetItemAt(PRUint32 aIndex, nsresult* aResult);
  nsIDOMMimeType* GetNamedItem(const nsAString& aName, nsresult* aResult);

  static nsMimeTypeArray* FromSupports(nsISupports* aSupports)
  {
#ifdef DEBUG
    {
      nsCOMPtr<nsIDOMMimeTypeArray> array_qi = do_QueryInterface(aSupports);

      // If this assertion fires the QI implementation for the object in
      // question doesn't use the nsIDOMMimeTypeArray pointer as the nsISupports
      // pointer. That must be fixed, or we'll crash...
      NS_ASSERTION(array_qi == static_cast<nsIDOMMimeTypeArray*>(aSupports),
                   "Uh, fix QI!");
    }
#endif

    return static_cast<nsMimeTypeArray*>(aSupports);
  }

private:
  nsresult GetMimeTypes();
  void     Clear();

protected:
  nsIDOMNavigator* mNavigator;
  // Number of mimetypes handled by plugins.
  PRUint32 mPluginMimeTypeCount;
  // mMimeTypeArray contains all mimetypes handled by plugins
  // (mPluginMimeTypeCount) and any mimetypes that we handle internally and
  // have been looked up before. The number of items in mMimeTypeArray should
  // thus always be equal to or higher than mPluginMimeTypeCount.
  nsCOMArray<nsIDOMMimeType> mMimeTypeArray;
  PRBool mInited;
};

class nsMimeType : public nsIDOMMimeType
{
public:
  nsMimeType(nsIDOMPlugin* aPlugin, nsIDOMMimeType* aMimeType);
  virtual ~nsMimeType();

  NS_DECL_ISUPPORTS
  NS_DECL_NSIDOMMIMETYPE

protected:
  nsIDOMPlugin* mPlugin;
  nsCOMPtr<nsIDOMMimeType> mMimeType;
};

class nsHelperMimeType : public nsIDOMMimeType
{
public:
  nsHelperMimeType(const nsAString& aType)
    : mType(aType)
  {
  }

  virtual ~nsHelperMimeType()
  {
  }

  NS_DECL_ISUPPORTS
  NS_DECL_NSIDOMMIMETYPE 
  
private:
  nsString mType;
};

#endif /* nsMimeTypeArray_h___ */