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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.
#import <Cocoa/Cocoa.h>
#include "base/mac/scoped_nsobject.h"
#include "ui/base/ui_base_export.h"
// A class that handles saving and restoring focus. An instance of
// this class snapshots the currently focused view when it is
// constructed, and callers can use restoreFocus to return focus to
// that view. FocusTracker will not restore focus to views that are
// no longer in the view hierarchy or are not in the correct window.
@interface FocusTracker : NSObject {
base::scoped_nsobject<NSView> focusedView_;
// |window| is the window that we are saving focus for. This
// method snapshots the currently focused view.
- (instancetype)initWithWindow:(NSWindow*)window;
// Attempts to restore focus to the snapshotted view. Returns YES if
// focus was restored. Will not restore focus if the view is no
// longer in the view hierarchy under |window|.
- (BOOL)restoreFocusInWindow:(NSWindow*)window;