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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 // | 4 // |
5 // The intent of this file is to provide a type-neutral abstraction between | 5 // The intent of this file is to provide a type-neutral abstraction between |
6 // Chrome and WebKit for resource loading. This pure-virtual interface is | 6 // Chrome and WebKit for resource loading. This pure-virtual interface is |
7 // implemented by the embedder. | 7 // implemented by the embedder. |
8 // | 8 // |
9 // One of these objects will be created by WebKit for each request. WebKit | 9 // One of these objects will be created by WebKit for each request. WebKit |
10 // will own the pointer to the bridge, and will delete it when the request is | 10 // will own the pointer to the bridge, and will delete it when the request is |
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140 // the peer is still valid. | 140 // the peer is still valid. |
141 virtual void Cancel() = 0; | 141 virtual void Cancel() = 0; |
142 | 142 |
143 // Call this method to suspend or resume a load that is in progress. This | 143 // Call this method to suspend or resume a load that is in progress. This |
144 // method may only be called after a successful call to the Start method. | 144 // method may only be called after a successful call to the Start method. |
145 virtual void SetDefersLoading(bool value) = 0; | 145 virtual void SetDefersLoading(bool value) = 0; |
146 | 146 |
147 // Call this method when the priority of the requested resource changes after | 147 // Call this method when the priority of the requested resource changes after |
148 // Start() has been called. This method may only be called after a successful | 148 // Start() has been called. This method may only be called after a successful |
149 // call to the Start method. | 149 // call to the Start method. |
150 virtual void DidChangePriority(net::RequestPriority new_priority, | 150 virtual void DidChangePriority(net::RequestPriority new_priority) = 0; |
151 int intra_priority_value) = 0; | |
152 | 151 |
153 // Call this method to load the resource synchronously (i.e., in one shot). | 152 // Call this method to load the resource synchronously (i.e., in one shot). |
154 // This is an alternative to the Start method. Be warned that this method | 153 // This is an alternative to the Start method. Be warned that this method |
155 // will block the calling thread until the resource is fully downloaded or an | 154 // will block the calling thread until the resource is fully downloaded or an |
156 // error occurs. It could block the calling thread for a long time, so only | 155 // error occurs. It could block the calling thread for a long time, so only |
157 // use this if you really need it! There is also no way for the caller to | 156 // use this if you really need it! There is also no way for the caller to |
158 // interrupt this method. Errors are reported via the status field of the | 157 // interrupt this method. Errors are reported via the status field of the |
159 // response parameter. | 158 // response parameter. |
160 virtual void SyncLoad(SyncLoadResponse* response) = 0; | 159 virtual void SyncLoad(SyncLoadResponse* response) = 0; |
161 | 160 |
162 protected: | 161 protected: |
163 // Construction must go through | 162 // Construction must go through |
164 // WebKitPlatformSupportImpl::CreateResourceLoader() | 163 // WebKitPlatformSupportImpl::CreateResourceLoader() |
165 // For HTTP(S) POST requests, the AppendDataToUpload and AppendFileToUpload | 164 // For HTTP(S) POST requests, the AppendDataToUpload and AppendFileToUpload |
166 // methods may be called to construct the body of the request. | 165 // methods may be called to construct the body of the request. |
167 WEBKIT_CHILD_EXPORT ResourceLoaderBridge(); | 166 WEBKIT_CHILD_EXPORT ResourceLoaderBridge(); |
168 | 167 |
169 private: | 168 private: |
170 DISALLOW_COPY_AND_ASSIGN(ResourceLoaderBridge); | 169 DISALLOW_COPY_AND_ASSIGN(ResourceLoaderBridge); |
171 }; | 170 }; |
172 | 171 |
173 } // namespace webkit_glue | 172 } // namespace webkit_glue |
174 | 173 |
175 #endif // WEBKIT_CHILD_RESOURCE_LOADER_BRIDGE_H_ | 174 #endif // WEBKIT_CHILD_RESOURCE_LOADER_BRIDGE_H_ |
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