/*

 * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY

 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

 */

#import "WebCache.h"

#import "WebNSObjectExtras.h"

#import "WebPreferences.h"

#import "WebSystemInterface.h"

#import "WebView.h"

#import "WebViewInternal.h"

#import <WebCore/ApplicationCacheStorage.h>

#import <WebCore/Cache.h>

#import <WebCore/CrossOriginPreflightResultCache.h>

@implementation WebCache

+ (void)initialize

{

    InitWebCoreSystemInterface();   

}

+ (NSArray *)statistics

{

    WebCore::Cache::Statistics s = WebCore::cache()->getStatistics();

    return [NSArray arrayWithObjects:

        [NSDictionary dictionaryWithObjectsAndKeys:

            [NSNumber numberWithInt:s.images.count], @"Images",

            [NSNumber numberWithInt:s.cssStyleSheets.count], @"CSS",

#if ENABLE(XSLT)

            [NSNumber numberWithInt:s.xslStyleSheets.count], @"XSL",

#else

            [NSNumber numberWithInt:0], @"XSL",

#endif

            [NSNumber numberWithInt:s.scripts.count], @"JavaScript",

            nil],

        [NSDictionary dictionaryWithObjectsAndKeys:

            [NSNumber numberWithInt:s.images.size], @"Images",

            [NSNumber numberWithInt:s.cssStyleSheets.size] ,@"CSS",

#if ENABLE(XSLT)

            [NSNumber numberWithInt:s.xslStyleSheets.size], @"XSL",

#else

            [NSNumber numberWithInt:0], @"XSL",

#endif

            [NSNumber numberWithInt:s.scripts.size], @"JavaScript",

            nil],

        [NSDictionary dictionaryWithObjectsAndKeys:

            [NSNumber numberWithInt:s.images.liveSize], @"Images",

            [NSNumber numberWithInt:s.cssStyleSheets.liveSize] ,@"CSS",

#if ENABLE(XSLT)

            [NSNumber numberWithInt:s.xslStyleSheets.liveSize], @"XSL",

#else

            [NSNumber numberWithInt:0], @"XSL",

#endif

            [NSNumber numberWithInt:s.scripts.liveSize], @"JavaScript",

            nil],

        [NSDictionary dictionaryWithObjectsAndKeys:

            [NSNumber numberWithInt:s.images.decodedSize], @"Images",

            [NSNumber numberWithInt:s.cssStyleSheets.decodedSize] ,@"CSS",

#if ENABLE(XSLT)

            [NSNumber numberWithInt:s.xslStyleSheets.decodedSize], @"XSL",

#else

            [NSNumber numberWithInt:0], @"XSL",

#endif

            [NSNumber numberWithInt:s.scripts.decodedSize], @"JavaScript",

            nil],

        [NSDictionary dictionaryWithObjectsAndKeys:

            [NSNumber numberWithInt:s.images.purgeableSize], @"Images",

            [NSNumber numberWithInt:s.cssStyleSheets.purgeableSize] ,@"CSS",

#if ENABLE(XSLT)

            [NSNumber numberWithInt:s.xslStyleSheets.purgeableSize], @"XSL",

#else

            [NSNumber numberWithInt:0], @"XSL",

#endif

            [NSNumber numberWithInt:s.scripts.purgeableSize], @"JavaScript",

            nil],

        [NSDictionary dictionaryWithObjectsAndKeys:

            [NSNumber numberWithInt:s.images.purgedSize], @"Images",

            [NSNumber numberWithInt:s.cssStyleSheets.purgedSize] ,@"CSS",

#if ENABLE(XSLT)

            [NSNumber numberWithInt:s.xslStyleSheets.purgedSize], @"XSL",

#else

            [NSNumber numberWithInt:0], @"XSL",

#endif

            [NSNumber numberWithInt:s.scripts.purgedSize], @"JavaScript",

            nil],

        nil];

}

+ (void)empty

{

    // Toggling the cache model like this forces the cache to evict all its in-memory resources.

    WebCacheModel cacheModel = [WebView _cacheModel];

    [WebView _setCacheModel:WebCacheModelDocumentViewer];

    [WebView _setCacheModel:cacheModel];

#if ENABLE(OFFLINE_WEB_APPLICATIONS)

    // Empty the application cache.

    WebCore::cacheStorage().empty();

#endif

    // Empty the Cross-Origin Preflight cache

    WebCore::CrossOriginPreflightResultCache::shared().empty();

}

+ (void)setDisabled:(BOOL)disabled

{

    if (!pthread_main_np())

        return [[self _webkit_invokeOnMainThread] setDisabled:disabled];

    WebCore::cache()->setDisabled(disabled);

}

+ (BOOL)isDisabled

{

    return WebCore::cache()->disabled();

}

@end