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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_WM_WINDOW_STATE_DELEGATE_H_
#define ASH_WM_WINDOW_STATE_DELEGATE_H_
#include <memory>
#include "ash/ash_export.h"
#include "ash/public/cpp/presentation_time_recorder.h"
namespace gfx {
class PointF;
}
namespace ash {
class WindowState;
class ASH_EXPORT WindowStateDelegate {
public:
WindowStateDelegate();
WindowStateDelegate(const WindowStateDelegate&) = delete;
WindowStateDelegate& operator=(const WindowStateDelegate&) = delete;
virtual ~WindowStateDelegate();
// Toggles the window into or out of the fullscreen state. If the window is
// not fullscreen and the window supports immersive fullscreen
// ToggleFullscreen() should put the window into immersive fullscreen instead
// of the default fullscreen type. The caller (ash::WindowState) falls backs
// to the default implementation if this returns false.
virtual bool ToggleFullscreen(WindowState* window_state);
// Toggles the locked fullscreen state, aka Pinned and TrustedPinned, where a
// window has exclusive control of the screen. Implementers should implement
// restrictions related to the relevant pinned mode for their window in this
// function.
virtual void ToggleLockedFullscreen(WindowState* window_state);
// Invoked when the user started drag operation. |component| must be
// a member of ui::HitTestCompat enum and specifies which part of
// the window the pointer device was on when the user started drag
// operation. Returns a presentation time recorder that could be used to
// track resize latency.
virtual std::unique_ptr<PresentationTimeRecorder> OnDragStarted(
int component);
// Invoked when the user finished drag operation. |cancel| is true
// if the drag operation was canceled.
virtual void OnDragFinished(bool cancel, const gfx::PointF& location) {}
};
} // namespace ash
#endif // ASH_WM_WINDOW_STATE_DELEGATE_H_
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