/*

 * Copyright (C) 2006, 2007 Apple 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. 

 */

#include "config.h"

#include "WebKitDLL.h"

#include "WebCache.h"

#include "CFDictionaryPropertyBag.h"

#pragma warning(push, 0)

#include <WebCore/ApplicationCacheStorage.h>

#include <WebCore/Cache.h>

#include <WebCore/CrossOriginPreflightResultCache.h>

#pragma warning(pop)

// WebCache ---------------------------------------------------------------------------

WebCache::WebCache()

: m_refCount(0)

{

    gClassCount++;

    gClassNameCount.add("WebCache");

}

WebCache::~WebCache()

{

    gClassCount--;

    gClassNameCount.remove("WebCache");

}

WebCache* WebCache::createInstance()

{

    WebCache* instance = new WebCache();

    instance->AddRef();

    return instance;

}

// IUnknown -------------------------------------------------------------------

HRESULT STDMETHODCALLTYPE WebCache::QueryInterface(REFIID riid, void** ppvObject)

{

    *ppvObject = 0;

    if (IsEqualGUID(riid, IID_IUnknown))

        *ppvObject = static_cast<WebCache*>(this);

    else if (IsEqualGUID(riid, IID_IWebCache))

        *ppvObject = static_cast<WebCache*>(this);

    else

        return E_NOINTERFACE;

    AddRef();

    return S_OK;

}

ULONG STDMETHODCALLTYPE WebCache::AddRef(void)

{

    return ++m_refCount;

}

ULONG STDMETHODCALLTYPE WebCache::Release(void)

{

    ULONG newRef = --m_refCount;

    if (!newRef)

        delete(this);

    return newRef;

}

// IWebCache ------------------------------------------------------------------------------

HRESULT STDMETHODCALLTYPE WebCache::statistics( 

    /* [in][out] */ int* count,

    /* [retval][out] */ IPropertyBag ** s)

{

    if (!count || (s && *count < 4))

        return E_FAIL;

    *count = 4;

    if (!s)

        return S_OK;

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

    static CFStringRef imagesKey = CFSTR("images");

    static CFStringRef stylesheetsKey = CFSTR("style sheets");

    static CFStringRef xslKey = CFSTR("xsl");

    static CFStringRef scriptsKey = CFSTR("scripts");

#if !ENABLE(XSLT)

    const int zero = 0;

#endif

    RetainPtr<CFMutableDictionaryRef> dictionary(AdoptCF,

        CFDictionaryCreateMutable(0, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));

    RetainPtr<CFNumberRef> value(AdoptCF, CFNumberCreate(0, kCFNumberIntType, &stat.images.count));

    CFDictionaryAddValue(dictionary.get(), imagesKey, value.get());

    value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.cssStyleSheets.count));

    CFDictionaryAddValue(dictionary.get(), stylesheetsKey, value.get());

#if ENABLE(XSLT)

    value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.xslStyleSheets.count));

#else

    value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &zero));

#endif

    CFDictionaryAddValue(dictionary.get(), xslKey, value.get());

    value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.scripts.count));

    CFDictionaryAddValue(dictionary.get(), scriptsKey, value.get());

    COMPtr<CFDictionaryPropertyBag> propBag = CFDictionaryPropertyBag::createInstance();

    propBag->setDictionary(dictionary.get());

    s[0] = propBag.releaseRef();

    dictionary.adoptCF(CFDictionaryCreateMutable(0, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));

    value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.images.size));

    CFDictionaryAddValue(dictionary.get(), imagesKey, value.get());

    value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.cssStyleSheets.size));

    CFDictionaryAddValue(dictionary.get(), stylesheetsKey, value.get());

#if ENABLE(XSLT)

    value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.xslStyleSheets.size));

#else

    value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &zero));

#endif

    CFDictionaryAddValue(dictionary.get(), xslKey, value.get());

    value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.scripts.size));

    CFDictionaryAddValue(dictionary.get(), scriptsKey, value.get());

    propBag = CFDictionaryPropertyBag::createInstance();

    propBag->setDictionary(dictionary.get());

    s[1] = propBag.releaseRef();

    dictionary.adoptCF(CFDictionaryCreateMutable(0, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));

    value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.images.liveSize));

    CFDictionaryAddValue(dictionary.get(), imagesKey, value.get());

    value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.cssStyleSheets.liveSize));

    CFDictionaryAddValue(dictionary.get(), stylesheetsKey, value.get());

#if ENABLE(XSLT)

    value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.xslStyleSheets.liveSize));

#else

    value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &zero));

#endif

    CFDictionaryAddValue(dictionary.get(), xslKey, value.get());

    value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.scripts.liveSize));

    CFDictionaryAddValue(dictionary.get(), scriptsKey, value.get());

    propBag = CFDictionaryPropertyBag::createInstance();

    propBag->setDictionary(dictionary.get());

    s[2] = propBag.releaseRef();

    dictionary.adoptCF(CFDictionaryCreateMutable(0, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));

    value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.images.decodedSize));

    CFDictionaryAddValue(dictionary.get(), imagesKey, value.get());

    value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.cssStyleSheets.decodedSize));

    CFDictionaryAddValue(dictionary.get(), stylesheetsKey, value.get());

#if ENABLE(XSLT)

    value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.xslStyleSheets.decodedSize));

#else

    value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &zero));

#endif

    CFDictionaryAddValue(dictionary.get(), xslKey, value.get());

    value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.scripts.decodedSize));

    CFDictionaryAddValue(dictionary.get(), scriptsKey, value.get());

    propBag = CFDictionaryPropertyBag::createInstance();

    propBag->setDictionary(dictionary.get());

    s[3] = propBag.releaseRef();

    return S_OK;

}

HRESULT STDMETHODCALLTYPE WebCache::empty( void)

{

    if (WebCore::cache()->disabled())

        return S_OK;

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

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

    // Empty the application cache.

    WebCore::cacheStorage().empty();

    // Empty the Cross-Origin Preflight cache

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

    return S_OK;

}

HRESULT STDMETHODCALLTYPE WebCache::setDisabled( 

    /* [in] */ BOOL disabled)

{

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

    return S_OK;

}

HRESULT STDMETHODCALLTYPE WebCache::disabled(

    /* [out][retval] */ BOOL* disabled)

{

    if (!disabled)

        return E_POINTER;

    *disabled = WebCore::cache()->disabled();

    return S_OK;

}