| OLD | NEW |
| (Empty) |
| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef UI_WAYLAND_WAYLAND_MESSAGE_PUMP_H_ | |
| 6 #define UI_WAYLAND_WAYLAND_MESSAGE_PUMP_H_ | |
| 7 | |
| 8 #include <glib.h> | |
| 9 #include <stdint.h> | |
| 10 | |
| 11 #include "base/basictypes.h" | |
| 12 | |
| 13 namespace ui { | |
| 14 | |
| 15 class WaylandDisplay; | |
| 16 | |
| 17 // The message pump handles Wayland specific event delivery. This message | |
| 18 // pump uses the default glib context, so running a glib main loop with the | |
| 19 // default context will allow looping through Wayland events. | |
| 20 class WaylandMessagePump { | |
| 21 public: | |
| 22 explicit WaylandMessagePump(WaylandDisplay* display); | |
| 23 virtual ~WaylandMessagePump(); | |
| 24 | |
| 25 protected: | |
| 26 // These are used to process the pump callbacks. | |
| 27 // HandlePrepare: is called during glib's prepare step and returns a timeout | |
| 28 // that will be passed to the poll. | |
| 29 // HandleCheck: called after HandlePrepare and returns whether | |
| 30 // HandleDispatch should be called. | |
| 31 // HandleDispatch:is called after HandleCheck returns true and it will | |
| 32 // dispatch a Wayland event. | |
| 33 virtual int HandlePrepare(); | |
| 34 virtual bool HandleCheck(); | |
| 35 virtual void HandleDispatch(); | |
| 36 | |
| 37 private: | |
| 38 struct WorkSource : public GSource { | |
| 39 WaylandMessagePump* pump; | |
| 40 }; | |
| 41 | |
| 42 // Actual callbacks for glib. These functions will just call the appropriate | |
| 43 // Handle* functions in a WaylandMessagePump object. | |
| 44 static gboolean SourcePrepare(GSource* source, gint* timeout); | |
| 45 static gboolean SourceCheck(GSource* source); | |
| 46 static gboolean SourceDispatch(GSource* source, | |
| 47 GSourceFunc callback, | |
| 48 gpointer data); | |
| 49 // Handles updates to the Wayland mask. This is used to signal when the | |
| 50 // compositor is done processing writable events. | |
| 51 static int SourceUpdate(uint32_t mask, void* data); | |
| 52 | |
| 53 WaylandDisplay* display_; | |
| 54 WorkSource* source_; | |
| 55 GPollFD pfd_; | |
| 56 uint32_t mask_; | |
| 57 | |
| 58 DISALLOW_COPY_AND_ASSIGN(WaylandMessagePump); | |
| 59 }; | |
| 60 | |
| 61 } // namespace ui | |
| 62 | |
| 63 #endif // UI_WAYLAND_WAYLAND_MESSAGE_PUMP_H_ | |
| OLD | NEW |