[Mac] Refactor the fullscreen code to move logic from BWC into FullscreenCont...

chrome/browser/cocoa/fullscreen_controller.h

 // 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_
 #pragma once
 
 #import <Cocoa/Cocoa.h>
 
 #import "base/cocoa_protocols_mac.h"
 #include "base/mac_util.h"
 #include "chrome/browser/cocoa/location_bar/location_bar_view_mac.h"
 
 @class BrowserWindowController;
 @class DropdownAnimation;
+@class FloatingBarBackingView;
+@class FullscreenWindow;
 
 // 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> {
  @private
+  scoped_nsobject<FullscreenWindow> fullscreenWindow_;
+
+  // Lazily created view which draws the background for the floating set of bars
+  // in fullscreen mode (for window types having a floating bar; it remains nil
+  // for those which don't).
+  scoped_nsobject<NSView> floatingBarBackingView_;
+
   // 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 proportion of the floating bar which is shown.
+  CGFloat floatingBarShownFraction_;
+
   // 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<DropdownAnimation> currentAnimation_;
@@ skipping 29 matching lines @@
 // 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.  If |-enterFullscreenForContentView:showDropdown:| is called, it must
 // be followed with a call to |-exitFullscreen| before the controller is
 // released.
 - (void)enterFullscreenForContentView:(NSView*)contentView
                          showDropdown:(BOOL)showDropdown;
 - (void)exitFullscreen;
 
+// Returns the FullscreenWindow associated with this controller.
+- (FullscreenWindow*)window;
+
+- (NSView*)floatingBarBackingView;
+
 // Returns the amount by which the floating bar should be offset downwards (to
 // avoid the menu) and by which the overlay view should be enlarged vertically.
 // Generally, this is > 0 when the fullscreen window is on the primary screen
 // and 0 otherwise.
 - (CGFloat)floatingBarVerticalOffset;
 
 // Informs the controller that the overlay's frame has changed.  The controller
 // uses this information to update its tracking areas.
 - (void)overlayFrameChanged:(NSRect)frame;
 
@@ skipping 12 matching lines @@
 // effects, such as modifying the fullscreen mode (menu bar shown state).
 - (void)changeFloatingBarShownFraction:(CGFloat)fraction;
 
 @end
 
 // Notification posted when we're about to enter or leave fullscreen.
 extern NSString* const kWillEnterFullscreenNotification;
 extern NSString* const kWillLeaveFullscreenNotification;
 
 #endif  // CHROME_BROWSER_COCOA_FULLSCREEN_CONTROLLER_H_