author Jonas Sicking <>
Thu, 06 Jan 2011 20:45:10 -0800
changeset 60098 3f18931661f974df4a8998e249e5005352b48360
parent 50373 fe1b3c35fa9d45c694c57db70b1824c45646ba89
child 79146 e7854b4d29ba905ae3994f821b160c989bac4260
permissions -rw-r--r--
Bug 610823: Change a few users that use nsTArrays as buffers to explicitly use fallible tarray. r=jdaggett a=blocker

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 sw=2 et tw=79: */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * 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
 * 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 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;

// NB: Due to weak references, nsNavigator has intimate knowledge of our
// members.
class nsMimeTypeArray : public nsIDOMMimeTypeArray
  nsMimeTypeArray(nsIDOMNavigator* navigator);
  virtual ~nsMimeTypeArray();


  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!");

    return static_cast<nsMimeTypeArray*>(aSupports);

  void Invalidate()
    // NB: This will cause GetMimeTypes to fail from now on.
    mNavigator = nsnull;

  nsresult GetMimeTypes();
  void     Clear();

  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
  nsMimeType(nsIDOMPlugin* aPlugin, nsIDOMMimeType* aMimeType);
  virtual ~nsMimeType();


  void DetachPlugin() { mPlugin = nsnull; }

  nsIDOMPlugin* mPlugin;
  nsCOMPtr<nsIDOMMimeType> mMimeType;

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

  virtual ~nsHelperMimeType()

  nsString mType;

#endif /* nsMimeTypeArray_h___ */