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 BASE_MESSAGE_PUMP_GLIB_X_DISPATCH_H 6 #define BASE_MESSAGE_PUMP_GLIB_X_DISPATCH_H 7 8 #include "base/message_pump.h" 9 #include "base/message_pump_glib.h" 10 11 typedef union _XEvent XEvent; 12 13 namespace base { 14 15 // The message pump used for TOUCH_UI on linux is MessagePumpGlibX, which can 16 // dispatch both GdkEvents* and XEvents* captured directly from X. 17 // MessagePumpForUI::Dispatcher provides the mechanism for dispatching 18 // GdkEvents. This class provides additional mechanism for dispatching XEvents. 19 class MessagePumpGlibXDispatcher : public MessagePumpForUI::Dispatcher { 20 public: 21 enum DispatchStatus { 22 EVENT_IGNORED, // The event was not processed. 23 EVENT_PROCESSED, // The event has been processed. 24 EVENT_QUIT // The event was processed and the message-loop should 25 // terminate. 26 }; 27 28 // Dispatches the event. EVENT_IGNORED is returned if the event was ignored 29 // (i.e. not processed). EVENT_PROCESSED is returned if the event was 30 // processed. The nested loop exits immediately if EVENT_QUIT is returned. 31 virtual DispatchStatus DispatchX(XEvent* xevent) = 0; 32 }; 33 34 } // namespace base 35 36 #endif // BASE_MESSAGE_PUMP_GLIB_X_DISPATCH_H 37
