1 /* 2 * Copyright (C) 2009, 2011 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 WebURLLoader_h 32 #define WebURLLoader_h 33 34 #include "WebCommon.h" 35 36 namespace WebKit { 37 38 class WebData; 39 class WebURLLoaderClient; 40 class WebURLRequest; 41 class WebURLResponse; 42 struct WebURLError; 43 44 class WebURLLoader { 45 public: 46 // The WebURLLoader may be deleted in a call to its client. 47 virtual ~WebURLLoader() {} 48 49 // Load the request synchronously, returning results directly to the 50 // caller upon completion. There is no mechanism to interrupt a 51 // synchronous load!! 52 virtual void loadSynchronously(const WebURLRequest&, 53 WebURLResponse&, WebURLError&, WebData& data) = 0; 54 55 // Load the request asynchronously, sending notifications to the given 56 // client. The client will receive no further notifications if the 57 // loader is disposed before it completes its work. 58 virtual void loadAsynchronously(const WebURLRequest&, 59 WebURLLoaderClient*) = 0; 60 61 // Cancels an asynchronous load. This will appear as a load error to 62 // the client. 63 virtual void cancel() = 0; 64 65 // Suspends/resumes an asynchronous load. 66 virtual void setDefersLoading(bool) = 0; 67 }; 68 69 } // namespace WebKit 70 71 #endif 72
