Mac InfoBar: Use cross platform infobar classes

chrome/browser/ui/cocoa/infobars/infobar_container_controller.h

 // Copyright (c) 2011 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_INFOBARS_INFOBAR_CONTAINER_CONTROLLER_H_
 #define CHROME_BROWSER_UI_COCOA_INFOBARS_INFOBAR_CONTAINER_CONTROLLER_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/mac/scoped_nsobject.h"
 #include "base/memory/scoped_ptr.h"
 #import "chrome/browser/ui/cocoa/view_resizer.h"
-#include "content/public/browser/notification_registrar.h"
 
 @class BrowserWindowController;
 @class InfoBarController;
-class InfoBar;
+class InfoBarCocoa;
+class InfoBarContainerCocoa;
 class InfoBarDelegate;
-class InfoBarNotificationObserver;
 class TabStripModel;
 
 namespace content {
 class WebContents;
 }
 
 // Protocol for basic container methods, as needed by an InfoBarController.
 // This protocol exists to make mocking easier in unittests.
-@protocol InfoBarContainer
-- (void)willRemoveController:(InfoBarController*)controller;
-- (void)removeController:(InfoBarController*)controller;
+@protocol InfoBarContainerControllerBase
 - (BrowserWindowController*)browserWindowController;
+- (BOOL)shouldSuppressTopInfoBarTip;
+- (CGFloat)infobarArrowX;
 @end
 
-
-namespace infobars {
-
-// The height of an infobar without the tip.
-const CGFloat kBaseHeight = 36.0;
-
-// The height of the infobar tip.
-const CGFloat kTipHeight = 12.0;
-
-};  // namespace infobars
-
-
 // Controller for the infobar container view, which is the superview
 // of all the infobar views.  This class owns zero or more
 // InfoBarControllers, which manage the infobar views.  This class
 // also receives tab strip model notifications and handles
 // adding/removing infobars when needed.
-@interface InfoBarContainerController : NSViewController <ViewResizer,
-                                                          InfoBarContainer> {
+@interface InfoBarContainerController
+    : NSViewController<InfoBarContainerControllerBase> {
  @private
   // Needed to send resize messages when infobars are added or removed.
   id<ViewResizer> resizeDelegate_;  // weak
 
   // The WebContents we are currently showing infobars for.
   content::WebContents* currentWebContents_;  // weak
 
   // Holds the InfoBarControllers currently owned by this container.
   base::scoped_nsobject<NSMutableArray> infobarControllers_;
 
-  // Holds InfoBarControllers when they are in the process of animating out.
-  base::scoped_nsobject<NSMutableSet> closingInfoBars_;
-
-  // Lets us registers for INFOBAR_ADDED/INFOBAR_REMOVED
-  // notifications.  The actual notifications are sent to the
-  // InfoBarNotificationObserver object, which proxies them back to us.
-  content::NotificationRegistrar registrar_;
-  scoped_ptr<InfoBarNotificationObserver> infoBarObserver_;
+  // The C++ instance that bridges to the cross platform code.
+  scoped_ptr<InfoBarContainerCocoa> containerCocoa_;
 
   // If YES then the first info bar doesn't draw a tip.
   BOOL shouldSuppressTopInfoBarTip_;
+
+  // If YES then an infobar animation is in progress.
+  BOOL isAnimating_;
+
+  // The last overlap tip height. This is used to ensure that the info bar
+  // position is updated if the infobar height doesn't change but the overlap
+  // does change.
+  int oldOverlappingTipHeight_;
 }
 
 @property(nonatomic, assign) BOOL shouldSuppressTopInfoBarTip;
 
 - (id)initWithResizeDelegate:(id<ViewResizer>)resizeDelegate;
 
-// Informs the container that the |controller| is going to close. It adds the
-// controller to |closingInfoBars_|. Once the animation is complete, the
-// controller calls |-removeController:| to finalize cleanup.
-- (void)willRemoveController:(InfoBarController*)controller;
-
-// Removes |controller| from the list of controllers in this container and
-// removes its view from the view hierarchy.  This method is safe to call while
-// |controller| is still on the call stack.
-- (void)removeController:(InfoBarController*)controller;
-
-// Modifies this container to display infobars for the given
-// |contents|.  Registers for INFOBAR_ADDED and INFOBAR_REMOVED
-// notifications for |contents|.  If we are currently showing any
-// infobars, removes them first and deregisters for any
-// notifications.  |contents| can be NULL, in which case no infobars
-// are shown and no notifications are registered for.
+// Modifies this container to display infobars for the given |contents|.
 - (void)changeWebContents:(content::WebContents*)contents;
 
 // Stripped down version of TabStripModelObserverBridge:tabDetachedWithContents.
-// Forwarded by BWC. Removes all infobars and deregisters for any notifications
-// if |contents| is the current tab contents.
+// Forwarded by BWC. Removes all infobars if |contents| is the current tab
+// contents.
 - (void)tabDetachedWithContents:(content::WebContents*)contents;
 
-// Returns the number of active infobars. This is
-// |infobarControllers_ - closingInfoBars_|.
-- (NSUInteger)infobarCount;
+// Returns the amount of additional height the container view needs to draw the
+// anti-spoofing tip. This is the total amount of overlap for all infobars.
+- (CGFloat)overlappingTipHeight;
 
-// Returns the amount of additional height the container view needs to draw the
-// anti-spoofing tip. This will return 0 if |-infobarCount| is 0. This is the
-// total amount of overlap for all infobars.
-- (CGFloat)overlappingTipHeight;
+// Adds the given infobar.
+- (void)addInfoBar:(InfoBarCocoa*)infobar
+          position:(NSUInteger)position;
+
+// Removes the given infobar.
+- (void)removeInfoBar:(InfoBarCocoa*)infobar;
+
+// Positions the infobar views in the container view and notifies
+// |browser_controller_| that it needs to resize the container view.
+- (void)positionInfoBarsAndRedraw:(BOOL)isAnimating;
 
 @end
 
-
-@interface InfoBarContainerController (ForTheObserverAndTesting)
-
-// Adds the given infobar.  Takes ownership of |infobar|.
-- (void)addInfoBar:(InfoBar*)infobar animate:(BOOL)animate;
-
-// Closes all the infobar views for a given delegate, either immediately or by
-// starting a close animation.
-- (void)closeInfoBarsForDelegate:(InfoBarDelegate*)delegate
-                         animate:(BOOL)animate;
-
-// Positions the infobar views in the container view and notifies
-// |browser_controller_| that it needs to resize the container view.
-- (void)positionInfoBarsAndRedraw;
-
-@end
-
-
-@interface InfoBarContainerController (JustForTesting)
-
-// Removes all infobar views.  Infobars which were already closing will be
-// completely closed (i.e. the InfoBarDelegate will be deleted and we'll get a
-// callback to removeController).  Other infobars will simply stop animating and
-// disappear.  Callers must call positionInfoBarsAndRedraw() after calling this
-// method.
-- (void)removeAllInfoBars;
-
-@end
-
 #endif  // CHROME_BROWSER_UI_COCOA_INFOBARS_INFOBAR_CONTAINER_CONTROLLER_H_