1 /* 2 * Copyright (C) 2008 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 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef IconFetcher_h 27 #define IconFetcher_h 28 29 #include <wtf/RefCounted.h> 30 #include <wtf/Forward.h> 31 #include <wtf/Vector.h> 32 33 #include "ResourceHandleClient.h" 34 35 namespace WebCore { 36 37 class Frame; 38 struct IconLinkEntry; 39 class ResourceHandle; 40 class SharedBuffer; 41 42 class IconFetcherClient { 43 public: 44 virtual void finishedFetchingIcon(PassRefPtr<SharedBuffer> iconData) = 0; 45 46 virtual ~IconFetcherClient() { } 47 }; 48 49 class IconFetcher : public RefCounted<IconFetcher>, ResourceHandleClient { 50 public: 51 static PassRefPtr<IconFetcher> create(Frame*, IconFetcherClient*); 52 ~IconFetcher(); 53 54 void cancel(); 55 56 private: 57 IconFetcher(Frame*, IconFetcherClient*); 58 void loadEntry(); 59 void loadFailed(); 60 61 PassRefPtr<SharedBuffer> createIcon(); 62 63 virtual void didReceiveResponse(ResourceHandle*, const ResourceResponse&); 64 virtual void didReceiveData(ResourceHandle*, const char*, int, int lengthReceived); 65 virtual void didFinishLoading(ResourceHandle*); 66 virtual void didFail(ResourceHandle*, const ResourceError&); 67 68 Frame* m_frame; 69 IconFetcherClient* m_client; 70 71 unsigned m_currentEntry; 72 RefPtr<ResourceHandle> m_handle; 73 Vector<IconLinkEntry> m_entries; 74 }; 75 76 } // namespace WebCore 77 78 #endif // IconFetcher_h 79