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-rw-r--r--ui/views/touchui/gesture_manager.h56
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diff --git a/ui/views/touchui/gesture_manager.h b/ui/views/touchui/gesture_manager.h
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--- a/ui/views/touchui/gesture_manager.h
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-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef UI_VIEWS_TOUCHUI_GESTURE_MANAGER_H_
-#define UI_VIEWS_TOUCHUI_GESTURE_MANAGER_H_
-#pragma once
-
-#include "base/memory/singleton.h"
-#include "ui/views/view.h"
-
-namespace ui {
-enum TouchStatus;
-}
-
-namespace views {
-class TouchEvent;
-
-// A GestureManager singleton detects gestures occurring in the
-// incoming feed of touch events across all of the RootViews in
-// the system. In response to a given touch event, the GestureManager
-// updates its internal state and optionally dispatches synthetic
-// events to the invoking view.
-//
-class VIEWS_EXPORT GestureManager {
- public:
- virtual ~GestureManager();
-
- static GestureManager* GetInstance();
-
- // Invoked for each touch event that could contribute to the current gesture.
- // Takes the event and the View that originated it and which will also
- // be the target of any generated synthetic event. Finally, status
- // specifies if a touch sequence is in progress or not, so that the
- // GestureManager state can correctly reflect events that are handled
- // already.
- // Returns true if the event resulted in firing a synthetic event.
- virtual bool ProcessTouchEventForGesture(const TouchEvent& event,
- View* source,
- ui::TouchStatus status);
-
- // TODO(rjkroege): Write the remainder of this class.
- // It will appear in a subsequent CL.
-
- protected:
- GestureManager();
-
- private:
- friend struct DefaultSingletonTraits<GestureManager>;
-
- DISALLOW_COPY_AND_ASSIGN(GestureManager);
-};
-
-} // namespace views
-
-#endif // UI_VIEWS_TOUCHUI_GESTURE_MANAGER_H_