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- // Copyright 2013 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 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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