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|   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_ |  | 
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