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// Copyright (c) 2010 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_COCOA_FULLSCREEN_CONTROLLER_H_
#define CHROME_BROWSER_COCOA_FULLSCREEN_CONTROLLER_H_
#import <Cocoa/Cocoa.h>
#import "base/cocoa_protocols_mac.h"
#include "chrome/browser/cocoa/location_bar_view_mac.h"
@class BrowserWindowController;
// Provides a controller to manage fullscreen mode for a single browser window.
// This class handles running animations, showing and hiding the floating
// dropdown bar, and managing the tracking area associated with the dropdown.
// This class does not directly manage any views -- the BrowserWindowController
// is responsible for positioning and z-ordering views.
//
// Tracking areas are disabled while animations are running. If
// |overlayFrameChanged:| is called while an animation is running, the
// controller saves the new frame and installs the appropriate tracking area
// when the animation finishes. This is largely done for ease of
// implementation; it is easier to check the mouse location at each animation
// step than it is to manage a constantly-changing tracking area.
@interface FullscreenController : NSObject<NSAnimationDelegate> {
// Our parent controller.
BrowserWindowController* browserController_; // weak
// The content view for the fullscreen window. This is nil when not in
// fullscreen mode.
NSView* contentView_; // weak
// Whether or not we are in fullscreen mode.
BOOL isFullscreen_;
// The tracking area associated with the floating dropdown bar. This tracking
// area is attached to |contentView_|, because when the dropdown is completely
// hidden, we still need to keep a 1px tall tracking area visible. Attaching
// to the content view allows us to do this. |trackingArea_| can be nil if
// not in fullscreen mode or during animations.
scoped_nsobject<NSTrackingArea> trackingArea_;
// Pointer to the currently running animation. Is nil if no animation is
// running.
scoped_nsobject<NSAnimation> currentAnimation_;
// Holds the current bounds of |trackingArea_|, even if |trackingArea_| is
// currently nil. Used to restore the tracking area when an animation
// completes.
NSRect trackingAreaBounds_;
}
// Designated initializer.
- (id)initWithBrowserController:(BrowserWindowController*)controller;
// Informs the controller that the browser has entered or exited fullscreen
// mode. enterFullscreenForContentView:showDropdown: should be called after the
// fullscreen window is setup, just before it is shown. exitFullscreen should
// be called before any views are moved back to the non-fullscreen window.
- (void)enterFullscreenForContentView:(NSView*)contentView
showDropdown:(BOOL)showDropdown;
- (void)exitFullscreen;
// Informs the controller that the overlay's frame has changed. The controller
// uses this information to update its tracking areas.
- (void)overlayFrameChanged:(NSRect)frame;
@end
#endif // CHROME_BROWSER_COCOA_FULLSCREEN_CONTROLLER_H_
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