Index: content/browser/web_contents/web_contents_view_overscroll_animator_slider_mac.h |
diff --git a/content/browser/web_contents/web_contents_view_overscroll_animator_slider_mac.h b/content/browser/web_contents/web_contents_view_overscroll_animator_slider_mac.h |
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+// Copyright 2014 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 CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_OVERSCROLL_ANIMATOR_SLIDER_MAC_H_ |
+#define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_OVERSCROLL_ANIMATOR_SLIDER_MAC_H_ |
+ |
+#import <Cocoa/Cocoa.h> |
+ |
+#include "base/mac/scoped_nsobject.h" |
+#include "base/memory/scoped_ptr.h" |
+#include "content/browser/web_contents/web_contents_view_overscroll_animator_mac.h" |
+ |
+namespace overscroll_animator { |
+class WebContentsPaintObserver; |
+} // namespace overscroll_animator |
+ |
+@interface OverscrollAnimatorSliderView |
+ : NSView<WebContentsOverscrollAnimator> { |
+ // This container view holds the RenderWidgetHost's NativeViews. Most of the |
+ // time, its frame in screen coordinates is the same as SliderView's frame in |
+ // screen coordinates. During an overscroll animation, it may temporarily be |
+ // relocated, but it will return to its original position after the overscroll |
+ // animation is finished. |
+ base::scoped_nsobject<NSView> middleView_; |
+ |
+ // This view is a sibling of middleView_, and is guaranteed to live below it. |
+ // Most of the time, it is hidden. During a backwards overscroll animation, |
+ // middleView_ is slid to the right, and bottomView_ peeks out from the |
+ // original position of middleView_. |
+ base::scoped_nsobject<NSImageView> bottomView_; |
+ |
+ // This view is a sibling of middleView_, and is guaranteed to live above it. |
+ // Most of the time, it is hidden. During a forwards overscroll animation, |
+ // topView_ is slid to the left from off screen, its final position exactly |
+ // covering middleView_. |
+ base::scoped_nsobject<NSImageView> topView_; |
+ |
+ // The direction of the current overscroll animation. This property has no |
+ // meaning when inOverscroll_ is false. |
+ content::OverscrollAnimatorDirection direction_; |
+ |
+ // Indicates that this view is completing or cancelling the overscroll. This |
+ // animation cannot be cancelled. |
+ BOOL animating_; |
+ |
+ // Reflects whether this view is in the process of handling an overscroll. |
+ BOOL inOverscroll_; |
+ |
+ // The most recent value passed to -updateOverscrollProgress:. |
+ CGFloat progress_; |
+ |
+ // An observer that reports the first non-empty paint of a WebContents. This |
+ // is used when completing an overscroll animation. |
+ scoped_ptr<overscroll_animator::WebContentsPaintObserver> observer_; |
+} |
+@end |
+ |
+#endif // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_OVERSCROLL_ANIMATOR_SLIDER_MAC_H_ |