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// Copyright (c) 2012 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_CONTROLS_SLIDE_OUT_VIEW_H_
#define UI_VIEWS_CONTROLS_SLIDE_OUT_VIEW_H_
#include "base/macros.h"
#include "ui/compositor/layer_animation_observer.h"
#include "ui/views/view.h"
#include "ui/views/views_export.h"
namespace views {
// A View that can be closed by a slide-out touch gesture.
class VIEWS_EXPORT SlideOutView : public views::View,
public ui::ImplicitAnimationObserver {
public:
SlideOutView();
~SlideOutView() override;
bool slide_out_enabled() { return is_slide_out_enabled_; }
protected:
// Called when user intends to close the View by sliding it out.
virtual void OnSlideOut() = 0;
// Overridden from views::View.
void OnGestureEvent(ui::GestureEvent* event) override;
void set_slide_out_enabled(bool is_slide_out_enabled) {
is_slide_out_enabled_ = is_slide_out_enabled;
}
private:
enum SlideDirection {
SLIDE_LEFT,
SLIDE_RIGHT,
};
// Restores the transform and opacity of the view.
void RestoreVisualState();
// Slides the view out and closes it after the animation.
void SlideOutAndClose(SlideDirection direction);
// Overridden from ImplicitAnimationObserver.
void OnImplicitAnimationsCompleted() override;
float gesture_amount_ = 0.f;
bool is_slide_out_enabled_ = true;
DISALLOW_COPY_AND_ASSIGN(SlideOutView);
};
} // namespace views
#endif // UI_VIEWS_CONTROLS_SLIDE_OUT_VIEW_H_
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