blob: 27c1c40fbb847177ea9f04a6ad614d94a1c6d806 [file] [log] [blame]
// Copyright 2013 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.
#include "ios/web/public/browser_url_rewriter.h"
namespace web {
class BrowserState;
class NavigationItem;
class WebState;
// A NavigationManager maintains the back-forward list for a WebState and
// manages all navigation within that list.
// Each NavigationManager belongs to one WebState; each WebState has
// exactly one NavigationManager.
class NavigationManager {
virtual ~NavigationManager() {}
// Gets the BrowserState associated with this NavigationManager. Can never
// return null.
virtual BrowserState* GetBrowserState() const = 0;
// Gets the WebState associated with this NavigationManager.
virtual WebState* GetWebState() const = 0;
// Returns the NavigationItem that should be used when displaying info about
// the current entry to the user. It ignores certain pending entries, to
// prevent spoofing attacks using slow-loading navigations.
virtual NavigationItem* GetVisibleItem() const = 0;
// Returns the last committed NavigationItem, which may be null if there
// are no committed entries.
virtual NavigationItem* GetLastCommittedItem() const = 0;
// Returns the pending entry corresponding to the navigation that is
// currently in progress, or null if there is none.
virtual NavigationItem* GetPendingItem() const = 0;
// Adds |rewriter| to a transient list of URL rewriters. Transient URL
// rewriters will be executed before the rewriters already added to the
// BrowserURLRewriter singleton, and the list will be cleared after the next
// attempted page load. |rewriter| must not be null.
virtual void AddTransientURLRewriter(
BrowserURLRewriter::URLRewriter rewriter) = 0;
} // namespace web