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 #include "chrome/browser/ui/ash/user_action_handler.h" 6 7 #include "ash/wm/window_util.h" 8 #include "chrome/browser/ui/browser.h" 9 #include "chrome/browser/ui/browser_finder.h" 10 #include "chrome/browser/ui/browser_window.h" 11 #include "chrome/browser/ui/tabs/tab_strip_model.h" 12 #include "content/public/browser/web_contents.h" 13 14 // Returns the currently-active WebContents belonging to the active browser, or 15 // NULL if there's no currently-active browser. 16 content::WebContents* GetActiveWebContents() { 17 Browser* browser = chrome::FindLastActiveWithHostDesktopType( 18 chrome::HOST_DESKTOP_TYPE_ASH); 19 if (!browser) 20 return NULL; 21 if (!ash::wm::IsActiveWindow(browser->window()->GetNativeWindow())) 22 return NULL; 23 24 return browser->tab_strip_model()->GetActiveWebContents(); 25 } 26 27 UserActionHandler::UserActionHandler() {} 28 29 UserActionHandler::~UserActionHandler() {} 30 31 bool UserActionHandler::OnUserAction( 32 aura::client::UserActionClient::Command command) { 33 switch (command) { 34 case aura::client::UserActionClient::BACK: { 35 content::WebContents* contents = GetActiveWebContents(); 36 if (contents && contents->GetController().CanGoBack()) { 37 contents->GetController().GoBack(); 38 return true; 39 } 40 break; 41 } 42 case aura::client::UserActionClient::FORWARD: { 43 content::WebContents* contents = GetActiveWebContents(); 44 if (contents && contents->GetController().CanGoForward()) { 45 contents->GetController().GoForward(); 46 return true; 47 } 48 break; 49 } 50 default: 51 break; 52 } 53 return false; 54 } 55