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// Copyright 2016 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_UI_COCOA_FULLSCREEN_FULLSCREEN_TOOLBAR_ANIMATION_CONTROLLER_H_
#define CHROME_BROWSER_UI_COCOA_FULLSCREEN_FULLSCREEN_TOOLBAR_ANIMATION_CONTROLLER_H_
#import <Cocoa/Cocoa.h>
#include "base/timer/timer.h"
#include "ui/gfx/animation/animation_delegate.h"
#include "ui/gfx/animation/slide_animation.h"
@class FullscreenToolbarController;
// This class provides a controller that manages the fullscreen toolbar's
// animation.
class FullscreenToolbarAnimationController : public gfx::AnimationDelegate {
public:
explicit FullscreenToolbarAnimationController(
FullscreenToolbarController* owner);
// Called by |owner_| when the fullscreen toolbar layout is updated.
void ToolbarDidUpdate();
// Stops the animation and cancels |hide_toolbar_timer_|.
void StopAnimationAndTimer();
// Animates the toolbar in and out to show changes with the tabstrip.
void AnimateToolbarForTabstripChanges();
// Animates the toolbar in if it's not fully shown.
void AnimateToolbarIn();
// Animates the toolbar out if it's not focused.
void AnimateToolbarOutIfPossible();
// Returns the fraction of the toolbar exposed at the top according to the
// animation's progress.
CGFloat GetToolbarFractionFromProgress() const;
// Returns true if |animation_| is running.
bool IsAnimationRunning() const;
// Only for testing. Sets the duration of |animation_|.
void SetAnimationDuration(CGFloat duration);
// gfx::AnimationDelegate:
void AnimationProgressed(const gfx::Animation* animation) override;
void AnimationEnded(const gfx::Animation* animation) override;
private:
// Our owner.
FullscreenToolbarController* owner_; // weak
// The animation of the decoration.
gfx::SlideAnimation animation_;
// Timer that will start the scrollbar's hiding animation when it reaches 0.
base::Timer hide_toolbar_timer_;
// The value that the animation should start from.
CGFloat animation_start_value_;
// True when the toolbar is dropped to show tabstrip changes.
BOOL should_hide_toolbar_after_delay_;
};
#endif // CHROME_BROWSER_UI_COCOA_FULLSCREEN_FULLSCREEN_TOOLBAR_ANIMATION_CONTROLLER_H_
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