components/view_manager/gesture_manager_delegate.h

   1 // Copyright 2015 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 COMPONENTS_VIEW_MANAGER_GESTURE_MANAGER_DELEGATE_H_
   6 #define COMPONENTS_VIEW_MANAGER_GESTURE_MANAGER_DELEGATE_H_
   7
   8 #include <set>
   9
  10 #include "components/view_manager/public/cpp/types.h"
  11 #include "ui/mojo/events/input_events.mojom.h"
  12
  13 namespace view_manager {
  14
  15 class GestureManagerDelegate {
  16  public:
  17   // Informs the delegate of a pointer event. The delegate should asynchronously
  18   // respond with the set of gestures appropriate for the view
  19   // (GestureManager::SetGestures()).
  20   // |has_chosen_gesture| is true if a gesture has been chosen.
  21   virtual void ProcessEvent(const ServerView* view,
  22                             mojo::EventPtr event,
  23                             bool has_chosen_gesture) = 0;
  24
  25  protected:
  26   virtual ~GestureManagerDelegate() {}
  27 };
  28
  29 }  // namespace view_manager
  30
  31 #endif  // COMPONENTS_VIEW_MANAGER_GESTURE_MANAGER_DELEGATE_H_