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1 /* | 1 /* |
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
3 * (C) 1999 Antti Koivisto (koivisto@kde.org) | 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) |
4 * Copyright (C) 2004, 2009 Apple Inc. All rights reserved. | 4 * Copyright (C) 2004, 2009 Apple Inc. All rights reserved. |
5 * | 5 * |
6 * This library is free software; you can redistribute it and/or | 6 * This library is free software; you can redistribute it and/or |
7 * modify it under the terms of the GNU Library General Public | 7 * modify it under the terms of the GNU Library General Public |
8 * License as published by the Free Software Foundation; either | 8 * License as published by the Free Software Foundation; either |
9 * version 2 of the License, or (at your option) any later version. | 9 * version 2 of the License, or (at your option) any later version. |
10 * | 10 * |
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104 bool HadError() const { return !failed_load_url_.IsEmpty(); } | 104 bool HadError() const { return !failed_load_url_.IsEmpty(); } |
105 | 105 |
106 void DispatchPendingEvent(ImageEventSender*); | 106 void DispatchPendingEvent(ImageEventSender*); |
107 | 107 |
108 static void DispatchPendingLoadEvents(); | 108 static void DispatchPendingLoadEvents(); |
109 static void DispatchPendingErrorEvents(); | 109 static void DispatchPendingErrorEvents(); |
110 | 110 |
111 bool GetImageAnimationPolicy(ImageAnimationPolicy&) final; | 111 bool GetImageAnimationPolicy(ImageAnimationPolicy&) final; |
112 | 112 |
113 protected: | 113 protected: |
| 114 void ImageChanged(ImageResourceContent*, const IntRect*) override; |
114 void ImageNotifyFinished(ImageResourceContent*) override; | 115 void ImageNotifyFinished(ImageResourceContent*) override; |
115 | 116 |
116 private: | 117 private: |
117 class Task; | 118 class Task; |
118 | 119 |
119 // Called from the task or from updateFromElement to initiate the load. | 120 // Called from the task or from updateFromElement to initiate the load. |
120 void DoUpdateFromElement(BypassMainWorldBehavior, | 121 void DoUpdateFromElement(BypassMainWorldBehavior, |
121 UpdateFromElementBehavior, | 122 UpdateFromElementBehavior, |
122 const KURL&, | 123 const KURL&, |
123 ReferrerPolicy = kReferrerPolicyDefault); | 124 ReferrerPolicy = kReferrerPolicyDefault); |
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158 Member<ImageResourceContent> image_; | 159 Member<ImageResourceContent> image_; |
159 Member<ImageResource> image_resource_for_image_document_; | 160 Member<ImageResource> image_resource_for_image_document_; |
160 // FIXME: Oilpan: We might be able to remove this Persistent hack when | 161 // FIXME: Oilpan: We might be able to remove this Persistent hack when |
161 // ImageResourceClient is traceable. | 162 // ImageResourceClient is traceable. |
162 GC_PLUGIN_IGNORE("http://crbug.com/383741") | 163 GC_PLUGIN_IGNORE("http://crbug.com/383741") |
163 Persistent<Element> keep_alive_; | 164 Persistent<Element> keep_alive_; |
164 | 165 |
165 Timer<ImageLoader> deref_element_timer_; | 166 Timer<ImageLoader> deref_element_timer_; |
166 AtomicString failed_load_url_; | 167 AtomicString failed_load_url_; |
167 WeakPtr<Task> pending_task_; // owned by Microtask | 168 WeakPtr<Task> pending_task_; // owned by Microtask |
168 std::unique_ptr<IncrementLoadEventDelayCount> load_delay_counter_; | 169 std::unique_ptr<IncrementLoadEventDelayCount> |
| 170 delay_until_do_update_from_element_; |
| 171 |
| 172 // Delaying load event: the timeline should be: |
| 173 // (0) ImageResource::Fetch() is called. |
| 174 // (1) ResourceFetcher::StartLoad(): Resource loading is actually started. |
| 175 // (2) ResourceLoader::DidFinishLoading() etc: |
| 176 // Resource loading is finished, but SVG document load might be |
| 177 // incomplete because of asynchronously loaded subresources. |
| 178 // (3) ImageNotifyFinished(): Image is completely loaded. |
| 179 // and we delay Document load event from (1) to (3): |
| 180 // - |ResourceFetcher::loaders_| delays Document load event from (1) to (2). |
| 181 // - |delay_until_image_notify_finished_| delays Document load event from |
| 182 // the first ImageChanged() (at some time between (1) and (2)) until (3). |
| 183 // Ideally, we might want to delay Document load event from (1) to (3), |
| 184 // but currently we piggyback on ImageChanged() because adding a callback |
| 185 // hook at (1) might complicate the code. |
| 186 std::unique_ptr<IncrementLoadEventDelayCount> |
| 187 delay_until_image_notify_finished_; |
| 188 |
169 bool has_pending_load_event_ : 1; | 189 bool has_pending_load_event_ : 1; |
170 bool has_pending_error_event_ : 1; | 190 bool has_pending_error_event_ : 1; |
171 bool image_complete_ : 1; | 191 bool image_complete_ : 1; |
172 bool loading_image_document_ : 1; | 192 bool loading_image_document_ : 1; |
173 bool element_is_protected_ : 1; | 193 bool element_is_protected_ : 1; |
174 bool suppress_error_events_ : 1; | 194 bool suppress_error_events_ : 1; |
175 }; | 195 }; |
176 | 196 |
177 } // namespace blink | 197 } // namespace blink |
178 | 198 |
179 #endif | 199 #endif |
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