gecko/content/xbl/src/nsXBLResourceLoader.h

114 lines
4.0 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* 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
* http://www.mozilla.org/MPL/
*
* 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 Communicator client 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):
* Original Author: David W. Hyatt (hyatt@netscape.com)
*
* Alternatively, the contents of this file may be used under the terms of
* 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
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsCOMPtr.h"
#include "nsICSSLoaderObserver.h"
#include "nsCOMArray.h"
#include "nsContentUtils.h"
#include "nsCycleCollectionParticipant.h"
class nsIContent;
class nsIAtom;
class nsIDocument;
class nsIScriptContext;
class nsSupportsHashtable;
class nsXBLPrototypeResources;
class nsXBLPrototypeBinding;
// *********************************************************************/
// The XBLResourceLoader class
struct nsXBLResource {
nsXBLResource* mNext;
nsIAtom* mType;
nsString mSrc;
nsXBLResource(nsIAtom* aType, const nsAString& aSrc) {
MOZ_COUNT_CTOR(nsXBLResource);
mNext = nsnull;
mType = aType;
mSrc = aSrc;
}
~nsXBLResource() {
MOZ_COUNT_DTOR(nsXBLResource);
NS_CONTENT_DELETE_LIST_MEMBER(nsXBLResource, this, mNext);
}
};
class nsXBLResourceLoader : public nsICSSLoaderObserver
{
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS(nsXBLResourceLoader)
// nsICSSLoaderObserver
NS_IMETHOD StyleSheetLoaded(nsCSSStyleSheet* aSheet, PRBool aWasAlternate,
nsresult aStatus);
void LoadResources(PRBool* aResult);
void AddResource(nsIAtom* aResourceType, const nsAString& aSrc);
void AddResourceListener(nsIContent* aElement);
nsXBLResourceLoader(nsXBLPrototypeBinding* aBinding,
nsXBLPrototypeResources* aResources);
virtual ~nsXBLResourceLoader();
void NotifyBoundElements();
// MEMBER VARIABLES
nsXBLPrototypeBinding* mBinding; // A pointer back to our binding.
nsXBLPrototypeResources* mResources; // A pointer back to our resources
// information. May be null if the
// resources have already been
// destroyed.
nsXBLResource* mResourceList; // The list of resources we need to load.
nsXBLResource* mLastResource;
PRPackedBool mLoadingResources;
// We need mInLoadResourcesFunc because we do a mixture of sync and
// async loads.
PRPackedBool mInLoadResourcesFunc;
PRInt16 mPendingSheets; // The number of stylesheets that have yet to load.
// Bound elements that are waiting on the stylesheets and scripts.
nsCOMArray<nsIContent> mBoundElements;
};