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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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_PLATFORM_X11_X11_EVENT_SOURCE_H_ | 5 #ifndef UI_EVENTS_PLATFORM_X11_X11_EVENT_SOURCE_H_ |
6 #define UI_EVENTS_PLATFORM_X11_X11_EVENT_SOURCE_H_ | 6 #define UI_EVENTS_PLATFORM_X11_X11_EVENT_SOURCE_H_ |
7 | 7 |
8 #include "base/memory/scoped_ptr.h" | 8 #include "base/memory/scoped_ptr.h" |
9 #include "ui/events/events_export.h" | 9 #include "ui/events/events_export.h" |
10 #include "ui/events/platform/platform_event_source.h" | 10 #include "ui/events/platform/platform_event_source.h" |
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36 // xserver that |w| has been mapped; StructureNotifyMask events on |w| are | 36 // xserver that |w| has been mapped; StructureNotifyMask events on |w| are |
37 // pulled out from the queue and dispatched out of order. | 37 // pulled out from the queue and dispatched out of order. |
38 // | 38 // |
39 // For those that know X11, this is really a wrapper around XWindowEvent | 39 // For those that know X11, this is really a wrapper around XWindowEvent |
40 // which still makes sure the preempted event is dispatched instead of | 40 // which still makes sure the preempted event is dispatched instead of |
41 // dropped on the floor. This method exists because mapping a window is | 41 // dropped on the floor. This method exists because mapping a window is |
42 // asynchronous (and we receive an XEvent when mapped), while there are also | 42 // asynchronous (and we receive an XEvent when mapped), while there are also |
43 // functions which require a mapped window. | 43 // functions which require a mapped window. |
44 void BlockUntilWindowMapped(XID window); | 44 void BlockUntilWindowMapped(XID window); |
45 | 45 |
| 46 // Dispatches a given event immediately. This is to faciliate sequential |
| 47 // interaction between the gtk event loop (used for IME) and the |
| 48 // main X11 event loop. |
| 49 void DispatchEventNow(XEvent* event); |
| 50 |
46 protected: | 51 protected: |
47 XDisplay* display() { return display_; } | 52 XDisplay* display() { return display_; } |
48 | 53 |
49 private: | 54 private: |
50 // Extracts cookie data from |xevent| if it's of GenericType, and dispatches | 55 // Extracts cookie data from |xevent| if it's of GenericType, and dispatches |
51 // the event. This function also frees up the cookie data after dispatch is | 56 // the event. This function also frees up the cookie data after dispatch is |
52 // complete. | 57 // complete. |
53 uint32_t ExtractCookieDataDispatchEvent(XEvent* xevent); | 58 uint32_t ExtractCookieDataDispatchEvent(XEvent* xevent); |
54 | 59 |
55 // PlatformEventSource: | 60 // PlatformEventSource: |
56 uint32_t DispatchEvent(XEvent* xevent) override; | 61 uint32_t DispatchEvent(XEvent* xevent) override; |
57 void StopCurrentEventStream() override; | 62 void StopCurrentEventStream() override; |
58 void OnDispatcherListChanged() override; | 63 void OnDispatcherListChanged() override; |
59 | 64 |
60 // The connection to the X11 server used to receive the events. | 65 // The connection to the X11 server used to receive the events. |
61 XDisplay* display_; | 66 XDisplay* display_; |
62 | 67 |
63 // Keeps track of whether this source should continue to dispatch all the | 68 // Keeps track of whether this source should continue to dispatch all the |
64 // available events. | 69 // available events. |
65 bool continue_stream_; | 70 bool continue_stream_; |
66 | 71 |
67 scoped_ptr<X11HotplugEventHandler> hotplug_event_handler_; | 72 scoped_ptr<X11HotplugEventHandler> hotplug_event_handler_; |
68 | 73 |
69 DISALLOW_COPY_AND_ASSIGN(X11EventSource); | 74 DISALLOW_COPY_AND_ASSIGN(X11EventSource); |
70 }; | 75 }; |
71 | 76 |
72 } // namespace ui | 77 } // namespace ui |
73 | 78 |
74 #endif // UI_EVENTS_PLATFORM_X11_X11_EVENT_SOURCE_H_ | 79 #endif // UI_EVENTS_PLATFORM_X11_X11_EVENT_SOURCE_H_ |
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