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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 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 #ifndef CHROME_BROWSER_ANDROID_OFFLINE_PAGES_PRERENDER_ADAPTER_H_ | 5 #ifndef CHROME_BROWSER_ANDROID_OFFLINE_PAGES_PRERENDER_ADAPTER_H_ |
6 #define CHROME_BROWSER_ANDROID_OFFLINE_PAGES_PRERENDER_ADAPTER_H_ | 6 #define CHROME_BROWSER_ANDROID_OFFLINE_PAGES_PRERENDER_ADAPTER_H_ |
7 | 7 |
8 #include <memory> | 8 #include <memory> |
9 | 9 |
10 #include "chrome/browser/prerender/prerender_handle.h" | 10 #include "chrome/browser/prerender/prerender_handle.h" |
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33 // Signals that the prerender has had its load event. | 33 // Signals that the prerender has had its load event. |
34 virtual void OnPrerenderStopLoading() = 0; | 34 virtual void OnPrerenderStopLoading() = 0; |
35 | 35 |
36 // Signals that the prerender has had its 'DOMContentLoaded' event. | 36 // Signals that the prerender has had its 'DOMContentLoaded' event. |
37 virtual void OnPrerenderDomContentLoaded() = 0; | 37 virtual void OnPrerenderDomContentLoaded() = 0; |
38 | 38 |
39 // Signals that the prerender has stopped running and any retrieved | 39 // Signals that the prerender has stopped running and any retrieved |
40 // WebContents (via |GetWebContents()|) have become invalidated. | 40 // WebContents (via |GetWebContents()|) have become invalidated. |
41 virtual void OnPrerenderStop() = 0; | 41 virtual void OnPrerenderStop() = 0; |
42 | 42 |
| 43 // Signals that a resource finished loading and altered the running byte |
| 44 // count. |bytes| is the cumulative number of bytes received for this |
| 45 // handle. |
| 46 virtual void OnPrerenderNetworkBytesChanged(int64_t bytes) = 0; |
| 47 |
43 protected: | 48 protected: |
44 Observer(); | 49 Observer(); |
45 virtual ~Observer(); | 50 virtual ~Observer(); |
46 }; | 51 }; |
47 | 52 |
48 explicit PrerenderAdapter(PrerenderAdapter::Observer* observer); | 53 explicit PrerenderAdapter(PrerenderAdapter::Observer* observer); |
49 ~PrerenderAdapter() override; | 54 ~PrerenderAdapter() override; |
50 | 55 |
51 // Starts prerendering |url| for offlining. There must be no active | 56 // Starts prerendering |url| for offlining. There must be no active |
52 // prerender request when calling this. Returns whether it was able | 57 // prerender request when calling this. Returns whether it was able |
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76 virtual bool IsActive() const; | 81 virtual bool IsActive() const; |
77 | 82 |
78 // Cancels any current prerendering operation and destroys its local handle. | 83 // Cancels any current prerendering operation and destroys its local handle. |
79 virtual void DestroyActive(); | 84 virtual void DestroyActive(); |
80 | 85 |
81 // PrerenderHandle::Observer interface: | 86 // PrerenderHandle::Observer interface: |
82 void OnPrerenderStart(prerender::PrerenderHandle* handle) override; | 87 void OnPrerenderStart(prerender::PrerenderHandle* handle) override; |
83 void OnPrerenderStopLoading(prerender::PrerenderHandle* handle) override; | 88 void OnPrerenderStopLoading(prerender::PrerenderHandle* handle) override; |
84 void OnPrerenderDomContentLoaded(prerender::PrerenderHandle* handle) override; | 89 void OnPrerenderDomContentLoaded(prerender::PrerenderHandle* handle) override; |
85 void OnPrerenderStop(prerender::PrerenderHandle* handle) override; | 90 void OnPrerenderStop(prerender::PrerenderHandle* handle) override; |
| 91 void OnPrerenderNetworkBytesChanged( |
| 92 prerender::PrerenderHandle* handle) override; |
86 | 93 |
87 private: | 94 private: |
88 // At most one prerender request may be active for this adapter and this | 95 // At most one prerender request may be active for this adapter and this |
89 // holds its handle if one is active. | 96 // holds its handle if one is active. |
90 std::unique_ptr<prerender::PrerenderHandle> active_handle_; | 97 std::unique_ptr<prerender::PrerenderHandle> active_handle_; |
91 | 98 |
92 // Observer of active handle events. Not owned. | 99 // Observer of active handle events. Not owned. |
93 PrerenderAdapter::Observer* observer_; | 100 PrerenderAdapter::Observer* observer_; |
94 | 101 |
95 DISALLOW_COPY_AND_ASSIGN(PrerenderAdapter); | 102 DISALLOW_COPY_AND_ASSIGN(PrerenderAdapter); |
96 }; | 103 }; |
97 | 104 |
98 } // namespace offline_pages | 105 } // namespace offline_pages |
99 | 106 |
100 #endif // CHROME_BROWSER_ANDROID_OFFLINE_PAGES_PRERENDER_ADAPTER_H_ | 107 #endif // CHROME_BROWSER_ANDROID_OFFLINE_PAGES_PRERENDER_ADAPTER_H_ |
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