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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:
create(const WebCore::ResourceRequest & request,const WebCore::SubstituteData & data)42     static PassRefPtr<WebDocumentLoaderMac> create(const WebCore::ResourceRequest& request, const WebCore::SubstituteData& data)
43     {
44         return adoptRef(new WebDocumentLoaderMac(request, data));
45     }
46 
47     void setDataSource(WebDataSource *, WebView*);
48     void detachDataSource();
49     WebDataSource *dataSource() const;
50 
51     void increaseLoadCount(unsigned long identifier);
52     void decreaseLoadCount(unsigned long identifier);
53 
54 private:
55     WebDocumentLoaderMac(const WebCore::ResourceRequest&, const WebCore::SubstituteData&);
56 
57     virtual void attachToFrame();
58     virtual void detachFromFrame();
59 
60     void retainDataSource();
61     void releaseDataSource();
62 
63     WebDataSource *m_dataSource;
64     bool m_isDataSourceRetained;
65     RetainPtr<id> m_resourceLoadDelegate;
66     RetainPtr<id> m_downloadDelegate;
67     HashSet<unsigned long> m_loadingResources;
68 };
69