Torne (Richard Coles) | f2477e0 | 2013-11-28 11:55:43 +0000 | [diff] [blame] | 1 | // Copyright 2013 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 ASH_WM_IMMERSIVE_REVEALED_LOCK_H_ |
| 6 | #define ASH_WM_IMMERSIVE_REVEALED_LOCK_H_ |
| 7 | |
| 8 | #include "ash/ash_export.h" |
| 9 | #include "base/basictypes.h" |
| 10 | #include "base/memory/weak_ptr.h" |
| 11 | |
| 12 | namespace ash { |
| 13 | |
| 14 | // Class which keeps the top-of-window views revealed for the duration of its |
| 15 | // lifetime. If acquiring the lock causes a reveal, the top-of-window views |
| 16 | // will animate according to the |animate_reveal| parameter passed in the |
| 17 | // constructor. See ImmersiveFullscreenController::GetRevealedLock() for more |
| 18 | // details. |
| 19 | class ASH_EXPORT ImmersiveRevealedLock { |
| 20 | public: |
| 21 | class ASH_EXPORT Delegate { |
| 22 | public: |
| 23 | enum AnimateReveal { |
| 24 | ANIMATE_REVEAL_YES, |
| 25 | ANIMATE_REVEAL_NO |
| 26 | }; |
| 27 | |
| 28 | virtual void LockRevealedState(AnimateReveal animate_reveal) = 0; |
| 29 | virtual void UnlockRevealedState() = 0; |
| 30 | |
| 31 | protected: |
| 32 | virtual ~Delegate() {} |
| 33 | }; |
| 34 | |
| 35 | ImmersiveRevealedLock(const base::WeakPtr<Delegate>& delegate, |
| 36 | Delegate::AnimateReveal animate_reveal); |
| 37 | ~ImmersiveRevealedLock(); |
| 38 | |
| 39 | private: |
| 40 | base::WeakPtr<Delegate> delegate_; |
| 41 | |
| 42 | DISALLOW_COPY_AND_ASSIGN(ImmersiveRevealedLock); |
| 43 | }; |
| 44 | |
| 45 | } // namespace ash |
| 46 | |
| 47 | #endif // ASH_WM_IMMERSIVE_REVEALED_LOCK_H_ |