/*

 * Copyright (C) 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. 

 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of

 *     its contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission. 

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 OR ITS 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 "WebKitStatistics.h"

#include "WebKitStatisticsPrivate.h"

#include <WebCore/BString.h>

using namespace WebCore;

int WebViewCount;

int WebDataSourceCount;

int WebFrameCount;

int WebHTMLRepresentationCount;

int WebFrameViewCount;

// WebKitStatistics ---------------------------------------------------------------------------

WebKitStatistics::WebKitStatistics()

: m_refCount(0)

{

    gClassCount++;

    gClassNameCount.add("WebKitStatistics");

}

WebKitStatistics::~WebKitStatistics()

{

    gClassCount--;

    gClassNameCount.remove("WebKitStatistics");

}

WebKitStatistics* WebKitStatistics::createInstance()

{

    WebKitStatistics* instance = new WebKitStatistics();

    instance->AddRef();

    return instance;

}

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

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

{

    *ppvObject = 0;

    if (IsEqualGUID(riid, IID_IUnknown))

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

    else if (IsEqualGUID(riid, IID_IWebKitStatistics))

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

    else

        return E_NOINTERFACE;

    AddRef();

    return S_OK;

}

ULONG STDMETHODCALLTYPE WebKitStatistics::AddRef(void)

{

    return ++m_refCount;

}

ULONG STDMETHODCALLTYPE WebKitStatistics::Release(void)

{

    ULONG newRef = --m_refCount;

    if (!newRef)

        delete(this);

    return newRef;

}

// IWebKitStatistics ------------------------------------------------------------------------------

HRESULT STDMETHODCALLTYPE WebKitStatistics::webViewCount( 

    /* [retval][out] */ int *count)

{

    *count = WebViewCount;

    return S_OK;

}

HRESULT STDMETHODCALLTYPE WebKitStatistics::frameCount( 

    /* [retval][out] */ int *count)

{

    *count = WebFrameCount;

    return S_OK;

}

HRESULT STDMETHODCALLTYPE WebKitStatistics::dataSourceCount( 

    /* [retval][out] */ int *count)

{

    *count = WebDataSourceCount;

    return S_OK;

}

HRESULT STDMETHODCALLTYPE WebKitStatistics::viewCount( 

    /* [retval][out] */ int *count)

{

    *count = WebFrameViewCount;

    return S_OK;

}

HRESULT STDMETHODCALLTYPE WebKitStatistics::HTMLRepresentationCount( 

    /* [retval][out] */ int *count)

{

    *count = WebHTMLRepresentationCount;

    return S_OK;

}

HRESULT STDMETHODCALLTYPE WebKitStatistics::comClassCount( 

    /* [retval][out] */ int *classCount)

{

    *classCount = gClassCount;

    return S_OK;

}

HRESULT STDMETHODCALLTYPE WebKitStatistics::comClassNameCounts( 

    /* [retval][out] */ BSTR *output)

{

    typedef HashCountedSet<String>::const_iterator Iterator;

    Iterator end = gClassNameCount.end();

    Vector<UChar> vector;

    for (Iterator current = gClassNameCount.begin(); current != end; ++current) {

        append(vector, String::format("%4u", current->second));

        vector.append('\t');

        append(vector, static_cast<String>(current->first));

        vector.append('\n');

    }

    *output = BString(String::adopt(vector)).release();

    return S_OK;

}