// 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. UI_BASE_EXPORT @interface FocusTracker : NSObject { @private base::scoped_nsobject<NSView> focusedView_; } // |window| is the window that we are saving focus for. This // method snapshots the currently focused view. - (id)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; @end