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// Copyright (c) 2011 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 UI_BASE_COCOA_HOVER_BUTTON_
#define UI_BASE_COCOA_HOVER_BUTTON_
#import <Cocoa/Cocoa.h>
#import "ui/base/cocoa/tracking_area.h"
#import "ui/base/ui_base_export.h"
// A button that changes when you hover over it and click it.
UI_BASE_EXPORT
@interface HoverButton : NSButton {
@protected
// Enumeration of the hover states that the close button can be in at any one
// time. The button cannot be in more than one hover state at a time.
enum HoverState {
kHoverStateNone = 0,
kHoverStateMouseOver = 1,
kHoverStateMouseDown = 2
};
HoverState hoverState_;
@private
// Tracking area for button mouseover states. Nil if not enabled.
ui::ScopedCrTrackingArea trackingArea_;
}
@property(nonatomic) HoverState hoverState;
// Enables or disables the tracking for the button.
- (void)setTrackingEnabled:(BOOL)enabled;
// Checks to see whether the mouse is in the button's bounds and update
// the image in case it gets out of sync. This occurs to the close button
// when you close a tab so the tab to the left of it takes its place, and
// drag the button without moving the mouse before you press the button down.
- (void)checkImageState;
@end
#endif // UI_BASE_COCOA_HOVER_BUTTON_
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