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| 1 | 1 |
| 2 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | 2 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. |
| 3 // Use of this source code is governed by a BSD-style license that can be | 3 // Use of this source code is governed by a BSD-style license that can be |
| 4 // found in the LICENSE file. | 4 // found in the LICENSE file. |
| 5 | 5 |
| 6 #ifndef CHROME_BROWSER_RENDER_WIDGET_HELPER_H__ | 6 #ifndef CHROME_BROWSER_RENDER_WIDGET_HELPER_H__ |
| 7 #define CHROME_BROWSER_RENDER_WIDGET_HELPER_H__ | 7 #define CHROME_BROWSER_RENDER_WIDGET_HELPER_H__ |
| 8 | 8 |
| 9 #include "base/atomic_sequence_num.h" | 9 #include "base/atomic_sequence_num.h" |
| 10 #include "base/hash_tables.h" | 10 #include "base/hash_tables.h" |
| 11 #include "base/ref_counted.h" | 11 #include "base/ref_counted.h" |
| 12 #include "base/lock.h" | 12 #include "base/lock.h" |
| 13 | 13 |
| 14 namespace IPC { | 14 namespace IPC { |
| 15 class Message; | 15 class Message; |
| 16 } | 16 } |
| 17 | 17 |
| 18 namespace base { |
| 19 class TimeDelta; |
| 20 } |
| 21 |
| 18 class MessageLoop; | 22 class MessageLoop; |
| 19 class ResourceDispatcherHost; | 23 class ResourceDispatcherHost; |
| 20 class TimeDelta; | |
| 21 | 24 |
| 22 // Instantiated per RenderProcessHost to provide various optimizations on | 25 // Instantiated per RenderProcessHost to provide various optimizations on |
| 23 // behalf of a RenderWidgetHost. This class bridges between the IO thread | 26 // behalf of a RenderWidgetHost. This class bridges between the IO thread |
| 24 // where the RenderProcessHost's MessageFilter lives and the UI thread where | 27 // where the RenderProcessHost's MessageFilter lives and the UI thread where |
| 25 // the RenderWidgetHost lives. | 28 // the RenderWidgetHost lives. |
| 26 // | 29 // |
| 27 // | 30 // |
| 28 // OPTIMIZED RESIZE | 31 // OPTIMIZED RESIZE |
| 29 // | 32 // |
| 30 // RenderWidgetHelper is used to implement optimized resize. When the | 33 // RenderWidgetHelper is used to implement optimized resize. When the |
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| 90 // Called on the UI thread to simulate a ClosePage_ACK message to the | 93 // Called on the UI thread to simulate a ClosePage_ACK message to the |
| 91 // ResourceDispatcherHost. Necessary for a cross-site request, in the case | 94 // ResourceDispatcherHost. Necessary for a cross-site request, in the case |
| 92 // that the original RenderViewHost is not live and thus cannot run an | 95 // that the original RenderViewHost is not live and thus cannot run an |
| 93 // onunload handler. | 96 // onunload handler. |
| 94 void CrossSiteClosePageACK(int new_render_process_host_id, | 97 void CrossSiteClosePageACK(int new_render_process_host_id, |
| 95 int new_request_id); | 98 int new_request_id); |
| 96 | 99 |
| 97 // Called on the UI thread to wait for the next PaintRect message for the | 100 // Called on the UI thread to wait for the next PaintRect message for the |
| 98 // specified render widget. Returns true if successful, and the msg out- | 101 // specified render widget. Returns true if successful, and the msg out- |
| 99 // param will contain a copy of the received PaintRect message. | 102 // param will contain a copy of the received PaintRect message. |
| 100 bool WaitForPaintMsg(int render_widget_id, const TimeDelta& max_delay, | 103 bool WaitForPaintMsg(int render_widget_id, const base::TimeDelta& max_delay, |
| 101 IPC::Message* msg); | 104 IPC::Message* msg); |
| 102 | 105 |
| 103 | 106 |
| 104 // IO THREAD ONLY ----------------------------------------------------------- | 107 // IO THREAD ONLY ----------------------------------------------------------- |
| 105 | 108 |
| 106 // Called on the IO thread when a PaintRect message is received. | 109 // Called on the IO thread when a PaintRect message is received. |
| 107 void DidReceivePaintMsg(const IPC::Message& msg); | 110 void DidReceivePaintMsg(const IPC::Message& msg); |
| 108 | 111 |
| 109 MessageLoop* ui_loop() { return ui_loop_; } | 112 MessageLoop* ui_loop() { return ui_loop_; } |
| 110 | 113 |
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| 154 // The next routing id to use. | 157 // The next routing id to use. |
| 155 base::AtomicSequenceNumber next_routing_id_; | 158 base::AtomicSequenceNumber next_routing_id_; |
| 156 | 159 |
| 157 // Whether popup blocking is enabled or not. | 160 // Whether popup blocking is enabled or not. |
| 158 bool block_popups_; | 161 bool block_popups_; |
| 159 | 162 |
| 160 DISALLOW_EVIL_CONSTRUCTORS(RenderWidgetHelper); | 163 DISALLOW_EVIL_CONSTRUCTORS(RenderWidgetHelper); |
| 161 }; | 164 }; |
| 162 | 165 |
| 163 #endif // CHROME_BROWSER_RENDER_WIDGET_HELPER_H__ | 166 #endif // CHROME_BROWSER_RENDER_WIDGET_HELPER_H__ |
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