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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsIconChannel_h_
#define nsIconChannel_h_

#include "mozilla/Attributes.h"

#include "nsIChannel.h"
#include "nsIURI.h"
#include "nsIIconURI.h"
#include "nsCOMPtr.h"

/**
 * This class is the Android implementation of nsIconChannel.
 * It asks Android for an icon, and creates a new channel for
 * that file to which all calls will be proxied.
 */
class nsIconChannel MOZ_FINAL : public nsIChannel {
  public:
    NS_DECL_ISUPPORTS
    NS_FORWARD_NSIREQUEST(mRealChannel->)
    NS_FORWARD_NSICHANNEL(mRealChannel->)

    nsIconChannel() {}
    ~nsIconChannel() {}

    /**
     * Called by nsIconProtocolHandler after it creates this channel.
     * Must be called before calling any other function on this object.
     * If this method fails, no other function must be called on this object.
     */
    nsresult Init(nsIURI* aURI);
  private:
    /**
     * The channel to the temp icon file (e.g. to /tmp/2qy9wjqw.html).
     * Will always be non-null after a successful Init.
     */
    nsCOMPtr<nsIChannel> mRealChannel;
};

#endif