1 /* 2 * Copyright (C) 2003, 2004, 2005 Apple Computer, 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 #if MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_4 30 #define WebNSInteger int 31 #else 32 #define WebNSInteger NSInteger 33 #endif 34 35 @class WebView; 36 @class WebDataSource; 37 @class NSURLAuthenticationChallenge; 38 @class NSURLResponse; 39 @class NSURLRequest; 40 41 /*! 42 @category WebResourceLoadDelegate 43 @discussion Implementors of this protocol will receive messages indicating 44 that a resource is about to be loaded, data has been received for a resource, 45 an error has been received for a resource, and completion of a resource load. 46 Implementors are also given the opportunity to mutate requests before they are sent. 47 The various progress methods of this protocol all receive an identifier as the 48 parameter. This identifier can be used to track messages associated with a single 49 resource. For example, a single resource may generate multiple 50 resource:willSendRequest:redirectResponse:fromDataSource: messages as it's URL is redirected. 51 */ 52 @interface NSObject (WebResourceLoadDelegate) 53 54 /*! 55 @method webView:identifierForInitialRequest:fromDataSource: 56 @param webView The WebView sending the message. 57 @param request The request about to be sent. 58 @param dataSource The datasource that initiated the load. 59 @discussion An implementor of WebResourceLoadDelegate should provide an identifier 60 that can be used to track the load of a single resource. This identifier will be 61 passed as the first argument for all of the other WebResourceLoadDelegate methods. The 62 identifier is useful to track changes to a resources request, which will be 63 provided by one or more calls to resource:willSendRequest:redirectResponse:fromDataSource:. 64 @result An identifier that will be passed back to the implementor for each callback. 65 The identifier will be retained. 66 */ 67 - (id)webView:(WebView *)sender identifierForInitialRequest:(NSURLRequest *)request fromDataSource:(WebDataSource *)dataSource; 68 69 /*! 70 @method webView:resource:willSendRequest:redirectResponse:fromDataSource: 71 @discussion This message is sent before a load is initiated. The request may be modified 72 as necessary by the receiver. 73 @param webView The WebView sending the message. 74 @param identifier An identifier that can be used to track the progress of a resource load across 75 multiple call backs. 76 @param request The request about to be sent. 77 @param redirectResponse If the request is being made in response to a redirect we received, 78 the response that conveyed that redirect. 79 @param dataSource The dataSource that initiated the load. 80 @result Returns the request, which may be mutated by the implementor, although typically 81 will be request. 82 */ 83 - (NSURLRequest *)webView:(WebView *)sender resource:(id)identifier willSendRequest:(NSURLRequest *)request redirectResponse:(NSURLResponse *)redirectResponse fromDataSource:(WebDataSource *)dataSource; 84 85 /*! 86 @method webView:resource:didReceiveAuthenticationChallenge:fromDataSource: 87 @abstract Start authentication for the resource, providing a challenge 88 @discussion Call useCredential::, continueWithoutCredential or 89 cancel on the challenge when done. 90 @param challenge The NSURLAuthenticationChallenge to start authentication for 91 @discussion If you do not implement this delegate method, WebKit will handle authentication 92 automatically by prompting with a sheet on the window that the WebView is associated with. 93 */ 94 - (void)webView:(WebView *)sender resource:(id)identifier didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge fromDataSource:(WebDataSource *)dataSource; 95 96 /*! 97 @method webView:resource:didCancelAuthenticationChallenge:fromDataSource: 98 @abstract Cancel authentication for a given request 99 @param challenge The NSURLAuthenticationChallenge for which to cancel authentication 100 */ 101 - (void)webView:(WebView *)sender resource:(id)identifier didCancelAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge fromDataSource:(WebDataSource *)dataSource; 102 103 /*! 104 @method webView:resource:didReceiveResponse:fromDataSource: 105 @abstract This message is sent after a response has been received for this load. 106 @param webView The WebView sending the message. 107 @param identifier An identifier that can be used to track the progress of a resource load across 108 multiple call backs. 109 @param response The response for the request. 110 @param dataSource The dataSource that initiated the load. 111 @discussion In some rare cases, multiple responses may be received for a single load. 112 This occurs with multipart/x-mixed-replace, or "server push". In this case, the client 113 should assume that each new response resets progress so far for the resource back to 0, 114 and should check the new response for the expected content length. 115 */ 116 - (void)webView:(WebView *)sender resource:(id)identifier didReceiveResponse:(NSURLResponse *)response fromDataSource:(WebDataSource *)dataSource; 117 118 /*! 119 @method webView:resource:didReceiveContentLength:fromDataSource: 120 @discussion Multiple of these messages may be sent as data arrives. 121 @param webView The WebView sending the message. 122 @param identifier An identifier that can be used to track the progress of a resource load across 123 multiple call backs. 124 @param length The amount of new data received. This is not the total amount, just the new amount received. 125 @param dataSource The dataSource that initiated the load. 126 */ 127 - (void)webView:(WebView *)sender resource:(id)identifier didReceiveContentLength:(WebNSInteger)length fromDataSource:(WebDataSource *)dataSource; 128 129 /*! 130 @method webView:resource:didFinishLoadingFromDataSource: 131 @discussion This message is sent after a load has successfully completed. 132 @param webView The WebView sending the message. 133 @param identifier An identifier that can be used to track the progress of a resource load across 134 multiple call backs. 135 @param dataSource The dataSource that initiated the load. 136 */ 137 - (void)webView:(WebView *)sender resource:(id)identifier didFinishLoadingFromDataSource:(WebDataSource *)dataSource; 138 139 /*! 140 @method webView:resource:didFailLoadingWithError:fromDataSource: 141 @discussion This message is sent after a load has failed to load due to an error. 142 @param webView The WebView sending the message. 143 @param identifier An identifier that can be used to track the progress of a resource load across 144 multiple call backs. 145 @param error The error associated with this load. 146 @param dataSource The dataSource that initiated the load. 147 */ 148 - (void)webView:(WebView *)sender resource:(id)identifier didFailLoadingWithError:(NSError *)error fromDataSource:(WebDataSource *)dataSource; 149 150 /*! 151 @method webView:plugInFailedWithError:dataSource: 152 @discussion Called when a plug-in is not found, fails to load or is not available for some reason. 153 @param webView The WebView sending the message. 154 @param error The plug-in error. In the userInfo dictionary of the error, the object for the 155 NSErrorFailingURLKey key is a URL string of the SRC attribute, the object for the WebKitErrorPlugInNameKey 156 key is a string of the plug-in's name, the object for the WebKitErrorPlugInPageURLStringKey key is a URL string 157 of the PLUGINSPAGE attribute and the object for the WebKitErrorMIMETypeKey key is a string of the TYPE attribute. 158 Some, none or all of the mentioned attributes can be present in the userInfo. The error returns nil for userInfo 159 when none are present. 160 @param dataSource The dataSource that contains the plug-in. 161 */ 162 - (void)webView:(WebView *)sender plugInFailedWithError:(NSError *)error dataSource:(WebDataSource *)dataSource; 163 164 @end 165 166 #undef WebNSInteger 167
