chrome/browser/download/all_download_item_notifier.cc

   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/download/all_download_item_notifier.h"
   6
   7 AllDownloadItemNotifier::AllDownloadItemNotifier(
   8     content::DownloadManager* manager,
   9     AllDownloadItemNotifier::Observer* observer)
  10     : manager_(manager),
  11       observer_(observer) {
  12   DCHECK(observer_);
  13   manager_->AddObserver(this);
  14   content::DownloadManager::DownloadVector items;
  15   manager_->GetAllDownloads(&items);
  16   for (content::DownloadManager::DownloadVector::const_iterator it =
  17          items.begin();
  18        it != items.end(); ++it) {
  19     (*it)->AddObserver(this);
  20     observing_.insert(*it);
  21   }
  22 }
  23
  24 AllDownloadItemNotifier::~AllDownloadItemNotifier() {
  25   if (manager_)
  26     manager_->RemoveObserver(this);
  27   for (std::set<content::DownloadItem*>::const_iterator it =
  28           observing_.begin();
  29         it != observing_.end(); ++it) {
  30     (*it)->RemoveObserver(this);
  31   }
  32   observing_.clear();
  33 }
  34
  35 void AllDownloadItemNotifier::ManagerGoingDown(
  36     content::DownloadManager* manager) {
  37   DCHECK_EQ(manager_, manager);
  38   manager_->RemoveObserver(this);
  39   manager_ = NULL;
  40 }
  41
  42 void AllDownloadItemNotifier::OnDownloadCreated(
  43     content::DownloadManager* manager,
  44     content::DownloadItem* item) {
  45   item->AddObserver(this);
  46   observing_.insert(item);
  47   observer_->OnDownloadCreated(manager, item);
  48 }
  49
  50 void AllDownloadItemNotifier::OnDownloadUpdated(
  51     content::DownloadItem* item) {
  52   observer_->OnDownloadUpdated(manager_, item);
  53 }
  54
  55 void AllDownloadItemNotifier::OnDownloadOpened(
  56     content::DownloadItem* item) {
  57   observer_->OnDownloadOpened(manager_, item);
  58 }
  59
  60 void AllDownloadItemNotifier::OnDownloadRemoved(
  61     content::DownloadItem* item) {
  62   observer_->OnDownloadRemoved(manager_, item);
  63 }
  64
  65 void AllDownloadItemNotifier::OnDownloadDestroyed(
  66     content::DownloadItem* item) {
  67   item->RemoveObserver(this);
  68   observing_.erase(item);
  69 }