[Mac[ FullscreenToolbarController Refactor

chrome/browser/ui/cocoa/fullscreen_toolbar_controller.h

-// 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_FULLSCREEN_TOOLBAR_CONTROLLER_H_
-#define CHROME_BROWSER_UI_COCOA_FULLSCREEN_TOOLBAR_CONTROLLER_H_
-
-#include <Carbon/Carbon.h>
-#import <Cocoa/Cocoa.h>
-
-#include "base/mac/mac_util.h"
-#include "chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.h"
-
-@class BrowserWindowController;
-@class FullscreenMenubarTracker;
-class FullscreenToolbarAnimationController;
-@class FullscreenToolbarMouseTracker;
-@class FullscreenToolbarVisibilityLockController;
-@class ImmersiveFullscreenController;
-
-// This enum class represents the appearance of the fullscreen toolbar, which
-// includes the tab strip and omnibox.
-enum class FullscreenToolbarStyle {
-  // The toolbar is present. Moving the cursor to the top
-  // causes the menubar to appear and the toolbar to slide down.
-  TOOLBAR_PRESENT,
-  // The toolbar is hidden. Moving cursor to top shows the
-  // toolbar and menubar.
-  TOOLBAR_HIDDEN,
-  // Toolbar is hidden. Moving cursor to top causes the menubar
-  // to appear, but not the toolbar.
-  TOOLBAR_NONE,
-};
-
-// Provides a controller to fullscreen toolbar for a single browser
-// window.  This class handles running animations, showing and hiding the
-// fullscreen toolbar, and managing the tracking area associated with the
-// toolbar.  This class does not directly manage any views -- the
-// BrowserWindowController is responsible for positioning and z-ordering views.
-//
-
-// TODO (spqchan): Write tests for this class. See crbug.com/640064.
-@interface FullscreenToolbarController : NSObject {
- @private
-  // Our parent controller.
-  BrowserWindowController* browserController_;  // weak
-
-  // Whether or not we are in fullscreen mode.
-  BOOL inFullscreenMode_;
-
-  // Updates the fullscreen toolbar layout for changes in the menubar. This
-  // object is only set when the browser is in fullscreen mode.
-  base::scoped_nsobject<FullscreenMenubarTracker> menubarTracker_;
-
-  // Maintains the toolbar's visibility locks for the TOOLBAR_HIDDEN style.
-  base::scoped_nsobject<FullscreenToolbarVisibilityLockController>
-      visibilityLockController_;
-
-  // Manages the toolbar animations for the TOOLBAR_HIDDEN style.
-  std::unique_ptr<FullscreenToolbarAnimationController> animationController_;
-
-  // Mouse tracker to track the user's interactions with the toolbar. This
-  // object is only set when the browser is in fullscreen mode.
-  base::scoped_nsobject<FullscreenToolbarMouseTracker> mouseTracker_;
-
-  // Controller for immersive fullscreen.
-  base::scoped_nsobject<ImmersiveFullscreenController>
-      immersiveFullscreenController_;
-}
-
-@property(nonatomic, assign) FullscreenToolbarStyle toolbarStyle;
-
-// Designated initializer.
-- (id)initWithBrowserController:(BrowserWindowController*)controller;
-
-// Informs the controller that the browser has entered or exited fullscreen
-// mode. |-enterFullscreenMode| should be called when the window is about to
-// enter fullscreen. |-exitFullscreenMode| should be called before any views
-// are moved back to the non-fullscreen window.
-- (void)enterFullscreenMode;
-- (void)exitFullscreenMode;
-
-// Cancels any running animation and timers.
-- (void)cancelAnimationAndTimer;
-
-// Animates the toolbar dropping down to show changes to the tab strip.
-- (void)revealToolbarForTabStripChanges;
-
-// In any fullscreen mode, the y offset to use for the content at the top of
-// the screen (tab strip, omnibox, bookmark bar, etc).
-// Ranges from 0 to -22.
-- (CGFloat)menubarOffset;
-
-// Returns the fraction of the toolbar exposed at the top.
-// It returns 1.0 if the toolbar is fully shown and 0.0 if the toolbar is
-// hidden. Otherwise, if the toolbar is in progress of animating, it will
-// return a float that ranges from (0, 1).
-- (CGFloat)toolbarFraction;
-
-// Returns YES if the fullscreen toolbar must be shown.
-- (BOOL)mustShowFullscreenToolbar;
-
-// Called by the BrowserWindowController to update toolbar frame.
-- (void)updateToolbarFrame:(NSRect)frame;
-
-// Returns YES if the browser in in fullscreen.
-- (BOOL)isInFullscreen;
-
-// Updates the toolbar style. If the style has changed, then the toolbar will
-// relayout.
-- (void)updateToolbarStyleExitingTabFullscreen:(BOOL)isExitingTabFullscreen;
-
-// Updates the toolbar by updating the layout, menubar and dock.
-- (void)updateToolbar;
-
-// Returns |browserController_|.
-- (BrowserWindowController*)browserWindowController;
-
-// Returns the object in |visibilityLockController_|;
-- (FullscreenToolbarVisibilityLockController*)visibilityLockController;
-
-@end
-
-// Private methods exposed for testing.
-@interface FullscreenToolbarController (ExposedForTesting)
-// Adjusts the AppKit Fullscreen options of the application.
-- (void)setSystemFullscreenModeTo:(base::mac::FullScreenMode)mode;
-
-// Callback for menu bar animations.
-- (void)setMenuBarRevealProgress:(CGFloat)progress;
-
-@end
-
-#endif  // CHROME_BROWSER_UI_COCOA_FULLSCREEN_TOOLBAR_CONTROLLER_H_