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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_EVENTS_OZONE_EVENT_FACTORY_OZONE_H_ | 5 #ifndef UI_EVENTS_OZONE_EVENT_FACTORY_OZONE_H_ |
| 6 #define UI_EVENTS_OZONE_EVENT_FACTORY_OZONE_H_ | 6 #define UI_EVENTS_OZONE_EVENT_FACTORY_OZONE_H_ |
| 7 | 7 |
| 8 #include <map> | 8 #include <map> |
| 9 | 9 |
| 10 #include "base/memory/scoped_ptr.h" | 10 #include "base/memory/scoped_ptr.h" |
| 11 #include "base/message_loop/message_pump_libevent.h" | 11 #include "base/message_loop/message_pump_libevent.h" |
| 12 #include "ui/events/events_export.h" | 12 #include "ui/events/events_export.h" |
| 13 #include "ui/events/ozone/event_converter_ozone.h" | |
| 14 | 13 |
| 15 namespace ui { | 14 namespace ui { |
| 16 | 15 |
| 16 class Event; |
| 17 |
| 17 // Creates and dispatches |ui.Event|'s. Ozone assumes that events arrive on file | 18 // Creates and dispatches |ui.Event|'s. Ozone assumes that events arrive on file |
| 18 // descriptors with one |EventConverterOzone| instance for each descriptor. | 19 // descriptors with one |EventConverterOzone| instance for each descriptor. |
| 19 // Ozone presumes that the set of file desctiprtors can vary at runtime so this | 20 // Ozone presumes that the set of file desctiprtors can vary at runtime so this |
| 20 // class supports dynamically adding and removing |EventConverterOzone| | 21 // class supports dynamically adding and removing |EventConverterOzone| |
| 21 // instances as necessary. | 22 // instances as necessary. |
| 22 class EVENTS_EXPORT EventFactoryOzone { | 23 class EVENTS_EXPORT EventFactoryOzone { |
| 23 public: | 24 public: |
| 24 EventFactoryOzone(); | 25 EventFactoryOzone(); |
| 25 virtual ~EventFactoryOzone(); | 26 virtual ~EventFactoryOzone(); |
| 26 | 27 |
| 27 // Called from WindowTreeHostOzone to initialize and start processing events. | 28 // Called from WindowTreeHostOzone to initialize and start processing events. |
| 28 // This should create the initial set of converters, and potentially arrange | 29 // This should create the initial set of converters, and potentially arrange |
| 29 // for more converters to be created as new event sources become available. | 30 // for more converters to be created as new event sources become available. |
| 30 // No events processing should happen until this is called. All processes have | 31 // No events processing should happen until this is called. All processes have |
| 31 // an EventFactoryOzone but not all of them should process events. In chrome, | 32 // an EventFactoryOzone but not all of them should process events. In chrome, |
| 32 // events are dispatched in the browser process on the UI thread. | 33 // events are dispatched in the browser process on the UI thread. |
| 33 virtual void StartProcessingEvents(); | 34 virtual void StartProcessingEvents(); |
| 34 | 35 |
| 35 // Returns the static instance last set using SetInstance(). | 36 // Returns the static instance last set using SetInstance(). |
| 36 static EventFactoryOzone* GetInstance(); | 37 static EventFactoryOzone* GetInstance(); |
| 37 | 38 |
| 38 // Sets the implementation delegate. Ownership is retained by the caller. | 39 // Sets the implementation delegate. Ownership is retained by the caller. |
| 39 static void SetInstance(EventFactoryOzone*); | 40 static void SetInstance(EventFactoryOzone*); |
| 40 | 41 |
| 42 // Subclasses should use this method to post a task that will dispatch |
| 43 // |event| from the UI message loop. This method takes ownership of |
| 44 // |event|. |event| will be deleted at the end of the posted task. |
| 45 static void DispatchEvent(scoped_ptr<ui::Event> event); |
| 46 |
| 41 private: | 47 private: |
| 42 static EventFactoryOzone* impl_; // not owned | 48 static EventFactoryOzone* impl_; // not owned |
| 43 | 49 |
| 44 DISALLOW_COPY_AND_ASSIGN(EventFactoryOzone); | 50 DISALLOW_COPY_AND_ASSIGN(EventFactoryOzone); |
| 45 }; | 51 }; |
| 46 | 52 |
| 47 } // namespace ui | 53 } // namespace ui |
| 48 | 54 |
| 49 #endif // UI_EVENTS_OZONE_EVENT_FACTORY_OZONE_H_ | 55 #endif // UI_EVENTS_OZONE_EVENT_FACTORY_OZONE_H_ |
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