| // Copyright 2014 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 IOS_WEB_NAVIGATION_NAVIGATION_MANAGER_FACADE_DELEGATE_H_ |
| #define IOS_WEB_NAVIGATION_NAVIGATION_MANAGER_FACADE_DELEGATE_H_ |
| |
| #include <stddef.h> |
| |
| namespace content { |
| class NavigationController; |
| } |
| |
| namespace web { |
| |
| class NavigationItemImpl; |
| class NavigationManagerImpl; |
| |
| // Interface used by the NavigationManager to drive the NavigationController |
| // facade. This pushes the ownership of the facade out of the web-layer to |
| // simplify upstreaming efforts. Once upstream features are componentized and |
| // use NavigationManager, this class will no longer be necessary. |
| class NavigationManagerFacadeDelegate { |
| public: |
| NavigationManagerFacadeDelegate() {} |
| virtual ~NavigationManagerFacadeDelegate() {} |
| |
| // Sets the NavigationManagerImpl that backs the NavigationController facade. |
| virtual void SetNavigationManager( |
| NavigationManagerImpl* navigation_manager) = 0; |
| // Returns the facade object being driven by this delegate. |
| virtual content::NavigationController* GetNavigationControllerFacade() = 0; |
| |
| // Callbacks for triggering notifications: |
| |
| // Called when the NavigationManager has a pending NavigationItem. |
| virtual void OnNavigationItemPending() = 0; |
| // Called when the NavigationManager has updated a NavigationItem. |
| virtual void OnNavigationItemChanged() = 0; |
| // Called when the NavigationManager has committed a pending NavigationItem. |
| virtual void OnNavigationItemCommitted(int previous_item_index, |
| bool is_in_page) = 0; |
| // Called when the NavigationManager has pruned committed NavigationItems. |
| virtual void OnNavigationItemsPruned(size_t pruned_item_count) = 0; |
| }; |
| |
| } // namespace web |
| |
| #endif // IOS_WEB_NAVIGATION_NAVIGATION_MANAGER_FACADE_DELEGATE_H_ |