| // Copyright (c) 2012 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_HISTORY_OVERLAY_CONTROLLER_H_ |
| #define CHROME_BROWSER_UI_COCOA_HISTORY_OVERLAY_CONTROLLER_H_ |
| |
| #import <Cocoa/Cocoa.h> |
| |
| #include "base/mac/scoped_nsobject.h" |
| |
| @class HistoryOverlayView; |
| |
| enum HistoryOverlayMode { |
| kHistoryOverlayModeBack, |
| kHistoryOverlayModeForward |
| }; |
| |
| // The HistoryOverlayController manages a view that is inserted atop the web |
| // contents to provide visual feedback when the user is performing history |
| // navigation gestures. |
| @interface HistoryOverlayController : NSViewController { |
| @private |
| HistoryOverlayMode _mode; |
| // Strongly typed reference of self.view. |
| base::scoped_nsobject<HistoryOverlayView> _contentView; |
| // The view above which self.view is inserted as a subview. |
| base::scoped_nsobject<NSView> _parent; |
| } |
| |
| // Designated initializer. |
| - (id)initForMode:(HistoryOverlayMode)mode; |
| |
| // Shows the shield above |view|. |
| - (void)showPanelForView:(NSView*)view; |
| |
| // Updates the appearance of the overlay based on track gesture progress. |
| // gestureAmount must be between 0 and 1. |
| // 0 indicates no progress. 1 indicates maximum progress. |
| // Finished indicates whether the gesture has reached maximum progress. |
| - (void)setProgress:(CGFloat)gestureAmount finished:(BOOL)finished; |
| |
| // Fades the shield out and removes it from the view hierarchy. |
| - (void)dismiss; |
| |
| @end |
| |
| #endif // CHROME_BROWSER_UI_COCOA_HISTORY_OVERLAY_CONTROLLER_H_ |