15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef CHROME_BROWSER_DOWNLOAD_ALL_DOWNLOAD_ITEM_NOTIFIER_H_ 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define CHROME_BROWSER_DOWNLOAD_ALL_DOWNLOAD_ITEM_NOTIFIER_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <set> 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/browser/download_manager.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/browser/download_item.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// AllDownloadItemNotifier observes ALL the DownloadItems on a given 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// DownloadManager. 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Clients should use GetManager() instead of storing their own pointer to the 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// manager so that they can be sensitive to managers that have gone down. 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Example Usage: 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// class DownloadSystemConsumer : public AllDownloadItemNotifier::Observer { 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// public: 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// DownloadSystemConsumer(content::DownloadManager* original_manager, 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// content::DownloadManager* incognito_manager) 23c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// : original_notifier_(original_manager, this), 24c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// incognito_notifier_(incognito_manager, this) { 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// } 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// virtual void OnDownloadUpdated( 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// content::DownloadManager* manager, content::DownloadItem* item) { ... } 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// private: 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// AllDownloadItemNotifier original_notifier_; 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// AllDownloadItemNotifier incognito_notifier_; 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// }; 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 35c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)class AllDownloadItemNotifier : public content::DownloadManager::Observer, 36c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) public content::DownloadItem::Observer { 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // All of the methods take the DownloadManager so that subclasses can observe 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // multiple managers at once and easily distinguish which manager a given item 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // belongs to. 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) class Observer { 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Observer() {} 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~Observer() {} 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void OnDownloadCreated( 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) content::DownloadManager* manager, content::DownloadItem* item) {} 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void OnDownloadUpdated( 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) content::DownloadManager* manager, content::DownloadItem* item) {} 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void OnDownloadOpened( 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) content::DownloadManager* manager, content::DownloadItem* item) {} 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void OnDownloadRemoved( 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) content::DownloadManager* manager, content::DownloadItem* item) {} 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(Observer); 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AllDownloadItemNotifier(content::DownloadManager* manager, 602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) Observer* observer); 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~AllDownloadItemNotifier(); 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Returns NULL if the manager has gone down. 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) content::DownloadManager* GetManager() const { return manager_; } 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // content::DownloadManager::Observer 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void ManagerGoingDown(content::DownloadManager* manager) OVERRIDE; 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void OnDownloadCreated(content::DownloadManager* manager, 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) content::DownloadItem* item) OVERRIDE; 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // content::DownloadItem::Observer 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void OnDownloadUpdated(content::DownloadItem* item) OVERRIDE; 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void OnDownloadOpened(content::DownloadItem* item) OVERRIDE; 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void OnDownloadRemoved(content::DownloadItem* item) OVERRIDE; 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void OnDownloadDestroyed(content::DownloadItem* item) OVERRIDE; 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) content::DownloadManager* manager_; 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AllDownloadItemNotifier::Observer* observer_; 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::set<content::DownloadItem*> observing_; 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(AllDownloadItemNotifier); 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // CHROME_BROWSER_DOWNLOAD_ALL_DOWNLOAD_ITEM_NOTIFIER_H_ 87