Home | History | Annotate | Download | only in Misc 
      1 /*
      2  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #import "WebCache.h"
     27 
     28 #import "WebPreferences.h"
     29 #import "WebSystemInterface.h"
     30 #import "WebView.h"
     31 #import "WebViewInternal.h"
     32 #import <WebCore/ApplicationCacheStorage.h>
     33 #import <WebCore/Cache.h>
     34 #import <WebCore/CrossOriginPreflightResultCache.h>
     35 
     36 @implementation WebCache
     37 
     38 + (void)initialize
     39 {
     40     InitWebCoreSystemInterface();
     41 }
     42 
     43 + (NSArray *)statistics
     44 {
     45     WebCore::Cache::Statistics s = WebCore::cache()->getStatistics();
     46 
     47     return [NSArray arrayWithObjects:
     48         [NSDictionary dictionaryWithObjectsAndKeys:
     49             [NSNumber numberWithInt:s.images.count], @"Images",
     50             [NSNumber numberWithInt:s.cssStyleSheets.count], @"CSS",
     51 #if ENABLE(XSLT)
     52             [NSNumber numberWithInt:s.xslStyleSheets.count], @"XSL",
     53 #else
     54             [NSNumber numberWithInt:0], @"XSL",
     55 #endif
     56             [NSNumber numberWithInt:s.scripts.count], @"JavaScript",
     57             nil],
     58         [NSDictionary dictionaryWithObjectsAndKeys:
     59             [NSNumber numberWithInt:s.images.size], @"Images",
     60             [NSNumber numberWithInt:s.cssStyleSheets.size] ,@"CSS",
     61 #if ENABLE(XSLT)
     62             [NSNumber numberWithInt:s.xslStyleSheets.size], @"XSL",
     63 #else
     64             [NSNumber numberWithInt:0], @"XSL",
     65 #endif
     66             [NSNumber numberWithInt:s.scripts.size], @"JavaScript",
     67             nil],
     68         [NSDictionary dictionaryWithObjectsAndKeys:
     69             [NSNumber numberWithInt:s.images.liveSize], @"Images",
     70             [NSNumber numberWithInt:s.cssStyleSheets.liveSize] ,@"CSS",
     71 #if ENABLE(XSLT)
     72             [NSNumber numberWithInt:s.xslStyleSheets.liveSize], @"XSL",
     73 #else
     74             [NSNumber numberWithInt:0], @"XSL",
     75 #endif
     76             [NSNumber numberWithInt:s.scripts.liveSize], @"JavaScript",
     77             nil],
     78         [NSDictionary dictionaryWithObjectsAndKeys:
     79             [NSNumber numberWithInt:s.images.decodedSize], @"Images",
     80             [NSNumber numberWithInt:s.cssStyleSheets.decodedSize] ,@"CSS",
     81 #if ENABLE(XSLT)
     82             [NSNumber numberWithInt:s.xslStyleSheets.decodedSize], @"XSL",
     83 #else
     84             [NSNumber numberWithInt:0], @"XSL",
     85 #endif
     86             [NSNumber numberWithInt:s.scripts.decodedSize], @"JavaScript",
     87             nil],
     88         [NSDictionary dictionaryWithObjectsAndKeys:
     89             [NSNumber numberWithInt:s.images.purgeableSize], @"Images",
     90             [NSNumber numberWithInt:s.cssStyleSheets.purgeableSize] ,@"CSS",
     91 #if ENABLE(XSLT)
     92             [NSNumber numberWithInt:s.xslStyleSheets.purgeableSize], @"XSL",
     93 #else
     94             [NSNumber numberWithInt:0], @"XSL",
     95 #endif
     96             [NSNumber numberWithInt:s.scripts.purgeableSize], @"JavaScript",
     97             nil],
     98         [NSDictionary dictionaryWithObjectsAndKeys:
     99             [NSNumber numberWithInt:s.images.purgedSize], @"Images",
    100             [NSNumber numberWithInt:s.cssStyleSheets.purgedSize] ,@"CSS",
    101 #if ENABLE(XSLT)
    102             [NSNumber numberWithInt:s.xslStyleSheets.purgedSize], @"XSL",
    103 #else
    104             [NSNumber numberWithInt:0], @"XSL",
    105 #endif
    106             [NSNumber numberWithInt:s.scripts.purgedSize], @"JavaScript",
    107             nil],
    108         nil];
    109 }
    110 
    111 + (void)empty
    112 {
    113     // Toggling the cache model like this forces the cache to evict all its in-memory resources.
    114     WebCacheModel cacheModel = [WebView _cacheModel];
    115     [WebView _setCacheModel:WebCacheModelDocumentViewer];
    116     [WebView _setCacheModel:cacheModel];
    117 
    118 #if ENABLE(OFFLINE_WEB_APPLICATIONS)
    119     // Empty the application cache.
    120     WebCore::cacheStorage().empty();
    121 #endif
    122 
    123     // Empty the Cross-Origin Preflight cache
    124     WebCore::CrossOriginPreflightResultCache::shared().empty();
    125 }
    126 
    127 + (void)setDisabled:(BOOL)disabled
    128 {
    129     WebCore::cache()->setDisabled(disabled);
    130 }
    131 
    132 + (BOOL)isDisabled
    133 {
    134     return WebCore::cache()->disabled();
    135 }
    136 
    137 @end
    138