1 // Copyright 2013 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_AURA_INPUT_STATE_LOOKUP_H_ 6 #define UI_AURA_INPUT_STATE_LOOKUP_H_ 7 8 #include "base/memory/scoped_ptr.h" 9 #include "ui/aura/aura_export.h" 10 11 namespace aura { 12 13 // InputStateLookup is used to obtain the state of input devices. 14 class AURA_EXPORT InputStateLookup { 15 public: 16 virtual ~InputStateLookup() {} 17 18 // Creates the platform specific InputStateLookup. May return NULL. 19 static scoped_ptr<InputStateLookup> Create(); 20 21 // Returns true if any mouse button is down. 22 virtual bool IsMouseButtonDown() const = 0; 23 }; 24 25 } // namespace aura 26 27 #endif // UI_AURA_INPUT_STATE_LOOKUP_H_ 28
