1 /*

     2  * Copyright (C) 2006, 2007 Apple 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  *

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

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

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

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

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

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

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

    15  *     from this software without specific prior written permission. 

    16  *

    17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY

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

    19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

    20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY

    21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

    22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

    23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

    24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

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

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

    27  */

    28 

    29 #import <WebCore/DocumentLoader.h>

    30 #import <wtf/RetainPtr.h>

    31 #import <wtf/HashSet.h>

    32 

    33 @class WebDataSource;

    34 @class WebView;

    35 

    36 namespace WebCore {

    37     class ResourceRequest;

    38 }

    39 

    40 class WebDocumentLoaderMac : public WebCore::DocumentLoader {

    41 public:

    42     WebDocumentLoaderMac(const WebCore::ResourceRequest&, const WebCore::SubstituteData&);

    43 

    44     void setDataSource(WebDataSource *, WebView*);

    45     void detachDataSource();

    46     WebDataSource *dataSource() const;

    47 

    48     virtual void attachToFrame();

    49     virtual void detachFromFrame();

    50 

    51     void increaseLoadCount(unsigned long identifier);

    52     void decreaseLoadCount(unsigned long identifier);

    53 

    54 private:

    55     void retainDataSource();

    56     void releaseDataSource();

    57 

    58     WebDataSource *m_dataSource;

    59     bool m_isDataSourceRetained;

    60     RetainPtr<id> m_resourceLoadDelegate;

    61     RetainPtr<id> m_downloadDelegate;

    62     HashSet<unsigned long> m_loadingResources;

    63 };