| Index: chrome/browser/ui/gtk/slide_animator_gtk.h
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| diff --git a/chrome/browser/ui/gtk/slide_animator_gtk.h b/chrome/browser/ui/gtk/slide_animator_gtk.h
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| new file mode 100644
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| index 0000000000000000000000000000000000000000..b3390b4d9abdea4b791008926c7634ba7fc72375
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| --- /dev/null
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| +++ b/chrome/browser/ui/gtk/slide_animator_gtk.h
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| @@ -0,0 +1,123 @@
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| +// Copyright (c) 2009 The Chromium Authors. All rights reserved.
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| +// Use of this source code is governed by a BSD-style license that can be
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| +// found in the LICENSE file.
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| +//
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| +// A helper class for animating the display of native widget content.
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| +// Currently only handle vertical sliding, but could be extended to handle
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| +// horizontal slides or other types of animations.
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| +//
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| +// NOTE: This does not handle clipping. If you are not careful, you will
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| +// wind up with visibly overlapping widgets. If you need clipping, you can
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| +// extend the constructor to take an option to give |fixed| its own GdkWindow
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| +// (via gtk_fixed_set_has_window).
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| +
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| +#ifndef CHROME_BROWSER_UI_GTK_SLIDE_ANIMATOR_GTK_H_
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| +#define CHROME_BROWSER_UI_GTK_SLIDE_ANIMATOR_GTK_H_
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| +#pragma once
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| +
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| +#include <gtk/gtk.h>
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| +
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| +#include "base/scoped_ptr.h"
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| +#include "chrome/browser/gtk/owned_widget_gtk.h"
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| +#include "ui/base/animation/animation_delegate.h"
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| +
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| +namespace ui {
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| +class SlideAnimation;
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| +}
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| +
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| +class SlideAnimatorGtk : public ui::AnimationDelegate {
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| + public:
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| +  class Delegate {
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| +   public:
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| +    // Called when a call to Close() finishes animating.
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| +    virtual void Closed() = 0;
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| +
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| +   protected:
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| +    virtual ~Delegate() {}
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| +  };
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| +
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| +  enum Direction {
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| +    DOWN,
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| +    UP
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| +  };
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| +
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| +  // |child| is the widget we pack into |widget_|.
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| +  // |direction| indicates which side the contents will appear to come from.
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| +  // |duration| is the duration of the slide in milliseconds, or 0 for default.
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| +  // |linear| controls how the animation progresses. If true, the
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| +  // velocity of the slide is constant over time, otherwise it goes a bit faster
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| +  // at the beginning and slows to a halt.
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| +  // |delegate| may be NULL.
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| +  SlideAnimatorGtk(GtkWidget* child,
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| +                   Direction direction,
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| +                   int duration,
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| +                   bool linear,
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| +                   bool control_child_size,
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| +                   Delegate* delegate);
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| +
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| +  virtual ~SlideAnimatorGtk();
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| +
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| +  GtkWidget* widget() { return widget_.get(); }
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| +
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| +  // Slide open.
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| +  void Open();
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| +
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| +  // Immediately show the widget.
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| +  void OpenWithoutAnimation();
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| +
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| +  // Slide shut.
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| +  void Close();
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| +
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| +  // End the current animation.
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| +  void End();
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| +
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| +  // Immediately hide the widget.
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| +  void CloseWithoutAnimation();
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| +
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| +  // Returns whether the widget is visible.
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| +  bool IsShowing();
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| +
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| +  // Returns whether the widget is currently showing the close animation.
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| +  bool IsClosing();
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| +
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| +  // Returns whether the widget is currently showing the open or close
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| +  // animation.
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| +  bool IsAnimating();
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| +
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| +  // ui::AnimationDelegate implementation.
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| +  virtual void AnimationProgressed(const ui::Animation* animation);
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| +  virtual void AnimationEnded(const ui::Animation* animation);
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| +
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| +  // Used during testing; disable or enable animations (default is enabled).
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| +  static void SetAnimationsForTesting(bool enable);
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| +
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| + private:
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| +  static void OnChildSizeAllocate(GtkWidget* child,
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| +                                  GtkAllocation* allocation,
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| +                                  SlideAnimatorGtk* slider);
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| +
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| +  scoped_ptr<ui::SlideAnimation> animation_;
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| +
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| +  // The top level widget of the SlideAnimatorGtk. It is a GtkFixed.
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| +  OwnedWidgetGtk widget_;
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| +
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| +  // The widget passed to us at construction time, and the only direct child of
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| +  // |widget_|.
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| +  GtkWidget* child_;
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| +
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| +  // The direction of the slide.
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| +  Direction direction_;
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| +
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| +  // The object to inform about certain events. It may be NULL.
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| +  Delegate* delegate_;
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| +
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| +  // We need to move the child widget to (0, -height), but we don't know its
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| +  // height until it has been allocated. This variable will be true until the
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| +  // child widget has been allocated, at which point we will move it, and then
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| +  // set this variable to false to indicate it should not be moved again.
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| +  bool child_needs_move_;
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| +
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| +  static bool animations_enabled_;
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| +};
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| +
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| +#endif  // CHROME_BROWSER_UI_GTK_SLIDE_ANIMATOR_GTK_H_
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| 
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