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// Copyright (c) 2009 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 CHROME_BROWSER_COCOA_ANIMATABLE_VIEW_H_
#define CHROME_BROWSER_COCOA_ANIMATABLE_VIEW_H_
#import <Cocoa/Cocoa.h>
#import "base/cocoa_protocols_mac.h"
#include "base/scoped_nsobject.h"
#import "chrome/browser/cocoa/background_gradient_view.h"
#import "chrome/browser/cocoa/view_resizer.h"
// A view that provides an animatable height property. Provides methods to
// animate to a new height, set a new height immediately, or cancel any running
// animations.
//
// AnimatableView sends an |animationDidEnd:| message to its delegate when the
// animation ends normally and an |animationDidStop:| message when the animation
// was canceled (even when canceled as a result of a new animation starting).
@interface AnimatableView : BackgroundGradientView<NSAnimationDelegate> {
@protected
IBOutlet id delegate_; // weak, used to send animation ended messages.
@private
scoped_nsobject<NSAnimation> currentAnimation_;
id<ViewResizer> resizeDelegate_; // weak, usually owns us
}
// Properties for bindings.
@property(assign, nonatomic) id delegate;
@property(assign, nonatomic) id<ViewResizer> resizeDelegate;
// Gets the current height of the view. If an animation is currently running,
// this will give the current height at the time of the call, not the target
// height at the end of the animation.
- (CGFloat)height;
// Sets the height of the view immediately. Cancels any running animations.
- (void)setHeight:(CGFloat)newHeight;
// Starts a new animation to the given |newHeight| for the given |duration|.
// Cancels any running animations.
- (void)animateToNewHeight:(CGFloat)newHeight
duration:(NSTimeInterval)duration;
// Cancels any running animations, leaving the view at its current
// (mid-animation) height.
- (void)stopAnimation;
// Gets the progress of any current animation.
- (NSAnimationProgress)currentAnimationProgress;
@end
#endif // CHROME_BROWSER_COCOA_ANIMATABLE_VIEW_H_
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