/*

 * Copyright (C) 2008 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 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 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 "WebIconFetcher.h"

#import "WebFrameInternal.h"

#import "WebIconFetcherInternal.h"

#import <WebCore/Frame.h>

#import <WebCore/IconFetcher.h>

#import <WebCore/SharedBuffer.h>

#import <wtf/PassRefPtr.h>

using namespace WebCore;

class WebIconFetcherClient : public IconFetcherClient {

public:

    WebIconFetcherClient(id target, SEL selector)

        : m_target(target)

        , m_selector(selector)

    {

    }

    virtual void finishedFetchingIcon(PassRefPtr<SharedBuffer> iconData)

    {

        RetainPtr<NSData> data;

        if (iconData)

            data = iconData->createNSData();

        [m_target performSelector:m_selector withObject:m_fetcher.get() withObject:data.get()];

        delete this;

    }

    void setFetcher(WebIconFetcher *fetcher) { m_fetcher = fetcher; }

private:

    RetainPtr<WebIconFetcher> m_fetcher;

    id m_target;

    SEL m_selector;

};

@implementation WebIconFetcher

- (id)init

{

    return nil;

}

- (void)dealloc

{

    if (_private)

        reinterpret_cast<IconFetcher*>(_private)->deref();

    [super dealloc];

}

- (void)finalize

{

    if (_private)

        reinterpret_cast<IconFetcher*>(_private)->deref();

    [super finalize];

}

- (void)cancel

{

    reinterpret_cast<IconFetcher*>(_private)->cancel();

}

@end

@implementation WebIconFetcher (WebInternal)

- (id)_initWithIconFetcher:(PassRefPtr<IconFetcher>)iconFetcher client:(WebIconFetcherClient *)client

{

    ASSERT(iconFetcher);

    self = [super init];

    if (!self)

        return nil;

    client->setFetcher(self);

    _private = reinterpret_cast<WebIconFetcherPrivate*>(iconFetcher.releaseRef());

    return self;

}

+ (WebIconFetcher *)_fetchApplicationIconForFrame:(WebFrame *)webFrame

                                           target:(id)target

                                         selector:(SEL)selector

{

    Frame* frame = core(webFrame);

    WebIconFetcherClient* client = new WebIconFetcherClient(target, selector);

    RefPtr<IconFetcher> fetcher = IconFetcher::create(frame, client);

    if (!fetcher)

        return nil;

    return [[[WebIconFetcher alloc] _initWithIconFetcher:fetcher.release() client:client] autorelease];

}

@end