| 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.
|
| +// Use of this source code is governed by a BSD-style license that can be
|
| +// found in the LICENSE file.
|
| +//
|
| +// A helper class for animating the display of native widget content.
|
| +// Currently only handle vertical sliding, but could be extended to handle
|
| +// horizontal slides or other types of animations.
|
| +//
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| +// NOTE: This does not handle clipping. If you are not careful, you will
|
| +// wind up with visibly overlapping widgets. If you need clipping, you can
|
| +// extend the constructor to take an option to give |fixed| its own GdkWindow
|
| +// (via gtk_fixed_set_has_window).
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| +
|
| +#ifndef CHROME_BROWSER_UI_GTK_SLIDE_ANIMATOR_GTK_H_
|
| +#define CHROME_BROWSER_UI_GTK_SLIDE_ANIMATOR_GTK_H_
|
| +#pragma once
|
| +
|
| +#include <gtk/gtk.h>
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| +
|
| +#include "base/scoped_ptr.h"
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| +#include "chrome/browser/gtk/owned_widget_gtk.h"
|
| +#include "ui/base/animation/animation_delegate.h"
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| +
|
| +namespace ui {
|
| +class SlideAnimation;
|
| +}
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| +
|
| +class SlideAnimatorGtk : public ui::AnimationDelegate {
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| + public:
|
| + class Delegate {
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| + public:
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| + // Called when a call to Close() finishes animating.
|
| + virtual void Closed() = 0;
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| +
|
| + protected:
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| + virtual ~Delegate() {}
|
| + };
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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_|.
|
| + // |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,
|
| + 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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| +
|
| +#endif // CHROME_BROWSER_UI_GTK_SLIDE_ANIMATOR_GTK_H_
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|
|