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Side by Side Diff: ui/base/ozone/event_converter_ozone.h

Issue 17078005: Move message_pump to base/message_loop. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 7 years, 6 months ago
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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2013 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 UI_BASE_OZONE_EVENT_CONVERTER_OZONE_H_ 5 #ifndef UI_BASE_OZONE_EVENT_CONVERTER_OZONE_H_
6 #define UI_BASE_OZONE_EVENT_CONVERTER_OZONE_H_ 6 #define UI_BASE_OZONE_EVENT_CONVERTER_OZONE_H_
7 7
8 #include "base/memory/scoped_ptr.h" 8 #include "base/memory/scoped_ptr.h"
9 #include "base/message_pump_libevent.h" 9 #include "base/message_loop/message_pump_libevent.h"
10 10
11 namespace ui { 11 namespace ui {
12 class Event; 12 class Event;
13 13
14 // In ozone, Chrome reads events from file descriptors created from Linux device 14 // In ozone, Chrome reads events from file descriptors created from Linux device
15 // drivers. The |MessagePumpLibevent::Watcher| parent class provides the 15 // drivers. The |MessagePumpLibevent::Watcher| parent class provides the
16 // functionality to watch a file descriptor for the arrival of new data and 16 // functionality to watch a file descriptor for the arrival of new data and
17 // notify its subclasses. Device-specific event converters turn bytes read from 17 // notify its subclasses. Device-specific event converters turn bytes read from
18 // the file descriptor into |ui::Event| instances. This class provides the 18 // the file descriptor into |ui::Event| instances. This class provides the
19 // functionality needed in common across all converters: dispatching the 19 // functionality needed in common across all converters: dispatching the
20 // |ui::Event| to aura. 20 // |ui::Event| to aura.
21 class EventConverterOzone : public base::MessagePumpLibevent::Watcher { 21 class EventConverterOzone : public base::MessagePumpLibevent::Watcher {
22 public: 22 public:
23 EventConverterOzone(); 23 EventConverterOzone();
24 virtual ~EventConverterOzone(); 24 virtual ~EventConverterOzone();
25 25
26 protected: 26 protected:
27 // Subclasses should use this method to post a task that will dispatch 27 // Subclasses should use this method to post a task that will dispatch
28 // |event| from the UI message loop. This method takes ownership of 28 // |event| from the UI message loop. This method takes ownership of
29 // |event|. |event| will be deleted at the end of the posted task. 29 // |event|. |event| will be deleted at the end of the posted task.
30 void DispatchEvent(scoped_ptr<ui::Event> event); 30 void DispatchEvent(scoped_ptr<ui::Event> event);
31 31
32 private: 32 private:
33 DISALLOW_COPY_AND_ASSIGN(EventConverterOzone); 33 DISALLOW_COPY_AND_ASSIGN(EventConverterOzone);
34 }; 34 };
35 35
36 } // namespace ui 36 } // namespace ui
37 37
38 #endif // UI_BASE_OZONE_EVENT_CONVERTER_OZONE_H_ 38 #endif // UI_BASE_OZONE_EVENT_CONVERTER_OZONE_H_
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