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 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

 /* 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/. */

 /* internal interface for observing CSS style sheet loads */

 #ifndef nsICSSLoaderObserver_h___

 #define nsICSSLoaderObserver_h___

 #include "nsISupports.h"

 #define NS_ICSSLOADEROBSERVER_IID     \

 { 0x7eb90c74, 0xea0c, 0x4df5,       \

 {0xa1, 0x5f, 0x95, 0xf0, 0x6a, 0x98, 0xb9, 0x40} }

 class nsCSSStyleSheet;

 class nsICSSLoaderObserver : public nsISupports {

 public:

   NS_DECLARE_STATIC_IID_ACCESSOR(NS_ICSSLOADEROBSERVER_IID)

   /**

    * StyleSheetLoaded is called after aSheet is marked complete and before any

    * load events associated with aSheet are fired.

    * @param aSheet the sheet that was loaded. Guaranteed to always be

    *        non-null, even if aStatus indicates failure.

    * @param aWasAlternate whether the sheet was an alternate.  This will always

    *        match the value LoadStyleLink or LoadInlineStyle returned in

    *        aIsAlternate if one of those methods were used to load the sheet,

    *        and will always be false otherwise.

    * @param aStatus is a success code if the sheet loaded successfully and a

    *        failure code otherwise.  Note that successful load of aSheet

    *        doesn't indicate anything about whether the data actually parsed

    *        as CSS, and doesn't indicate anything about the status of any child

    *        sheets of aSheet.

    */

   NS_IMETHOD StyleSheetLoaded(nsCSSStyleSheet* aSheet, bool aWasAlternate,

                               nsresult aStatus) = 0;

 };

 NS_DEFINE_STATIC_IID_ACCESSOR(nsICSSLoaderObserver, NS_ICSSLOADEROBSERVER_IID)

 #endif // nsICSSLoaderObserver_h___