1 /* 2 * Copyright (C) 2009 Google 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef WebURLLoaderClient_h 32 #define WebURLLoaderClient_h 33 34 namespace blink { 35 36 class WebURLLoader; 37 class WebURLRequest; 38 class WebURLResponse; 39 struct WebURLError; 40 41 class WebURLLoaderClient { 42 public: 43 // Called when following a redirect. |newRequest| contains the request 44 // generated by the redirect. The client may modify |newRequest|. 45 virtual void willSendRequest( 46 WebURLLoader*, WebURLRequest& newRequest, const WebURLResponse& redirectResponse) { } 47 48 // Called to report upload progress. The bytes reported correspond to 49 // the HTTP message body. 50 virtual void didSendData( 51 WebURLLoader*, unsigned long long bytesSent, unsigned long long totalBytesToBeSent) { } 52 53 // Called when response headers are received. 54 virtual void didReceiveResponse(WebURLLoader*, const WebURLResponse&) { } 55 56 // Called when a chunk of response data is downloaded. This is only called 57 // if WebURLRequest's downloadToFile flag was set to true. 58 virtual void didDownloadData(WebURLLoader*, int dataLength, int encodedDataLength) { } 59 60 // Called when a chunk of response data is received. 61 virtual void didReceiveData(WebURLLoader*, const char* data, int dataLength, int encodedDataLength) { } 62 63 // Called when a chunk of renderer-generated metadata is received from the cache. 64 virtual void didReceiveCachedMetadata(WebURLLoader*, const char* data, int dataLength) { } 65 66 // Called when the load completes successfully. 67 // |totalEncodedDataLength| may be equal to kUnknownEncodedDataLength. 68 virtual void didFinishLoading(WebURLLoader* loader, double finishTime, int64_t totalEncodedDataLength) { } 69 70 // Called when the load completes with an error. 71 virtual void didFail(WebURLLoader*, const WebURLError&) { } 72 73 // Value passed to didFinishLoading when total encoded data length isn't known. 74 static const int64_t kUnknownEncodedDataLength = -1; 75 76 protected: 77 virtual ~WebURLLoaderClient() { } 78 }; 79 80 } // namespace blink 81 82 #endif 83
