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/* -*- Mode: C++; tab-width: 2; 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/. */

#include "nsIURL.idl"

interface nsIFile;
interface nsIURIMutator;

/**
 * nsIFileURL provides access to the underlying nsIFile object corresponding to
 * an URL.  The URL scheme need not be file:, since other local protocols may
 * map URLs to files (e.g., resource:).
 */
[scriptable, builtinclass, uuid(e91ac988-27c2-448b-b1a1-3822e1ef1987)]
interface nsIFileURL : nsIURL
{
    /**
     * Get the nsIFile corresponding to this URL.
     *
     *  - Returns a reference to an immutable object.  Callers must clone
     *    before attempting to modify the returned nsIFile object.  NOTE: this
     *    constraint might not be enforced at runtime, so beware!!
     */
    readonly attribute nsIFile file;
};

[scriptable, builtinclass, uuid(a588b6f2-d2b9-4024-84c7-be3368546b57)]
interface nsIFileURLMutator : nsISupports
{
    /*
     *  - Marks the inner URI implementation as one that supports nsIFileURL.
     */
    [must_use, noscript] void markFileURL();

    /*
     *  - Setter clones the nsIFile object (allowing the caller to safely modify
     *    the nsIFile object after setting it on this interface).
     */
    [must_use, noscript] void setFile(in nsIFile aFile);
};