1// Copyright (c) 2012 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef CHROME_BROWSER_UI_SINGLETON_TABS_H_ 6#define CHROME_BROWSER_UI_SINGLETON_TABS_H_ 7 8class Browser; 9class GURL; 10 11// Methods for opening "singleton tabs". Tabs are guaranteed unique by varying 12// metrics within a particular Browser window. 13 14namespace chrome { 15 16struct NavigateParams; 17 18// Core singleton tab API: 19 20// Show a given a URL. If a tab with the same URL (ignoring the ref) is 21// already visible in this browser, it becomes selected. Otherwise a new tab 22// is created. 23void ShowSingletonTab(Browser* browser, const GURL& url); 24 25// Same as ShowSingletonTab, but does not ignore ref. 26void ShowSingletonTabRespectRef(Browser* browser, const GURL& url); 27 28// As ShowSingletonTab, but if the current tab is the new tab page or 29// about:blank, then overwrite it with the passed contents. 30void ShowSingletonTabOverwritingNTP(Browser* browser, 31 const NavigateParams& params); 32 33// Creates a NavigateParams struct for a singleton tab navigation. 34NavigateParams GetSingletonTabNavigateParams(Browser* browser, const GURL& url); 35 36// If the given navigational URL is a Singleton, return the tab index for it. 37// Otherwise, returns -1. 38int GetIndexOfSingletonTab(NavigateParams* params); 39 40} // namespace chrome 41 42#endif // CHROME_BROWSER_UI_SINGLETON_TABS_H_ 43