Mountain Lion: use the system download progress.

chrome/browser/download/download_completion_observer_win.cc

-// Copyright (c) 2012 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 "chrome/browser/download/download_completion_observer_win.h"
-
-#include <string>
-
-#include "base/logging.h"
-#include "base/stl_util.h"
-#include "base/string_number_conversions.h"
-#include "base/win/metro.h"
-#include "googleurl/src/gurl.h"
-#include "grit/generated_resources.h"
-#include "ui/base/l10n/l10n_util.h"
-
-using content::DownloadItem;
-using content::DownloadManager;
-
-static const char kDownloadNotificationPrefix[] = "DownloadNotification";
-int g_next_notification_id = 0;
-
-DownloadCompletionObserver::DownloadCompletionObserver(
-    DownloadManager* manager) {
-  manager->AddObserver(this);
-}
-
-DownloadCompletionObserver::~DownloadCompletionObserver() {
-  DCHECK(download_items_.empty());
-}
-
-void DownloadCompletionObserver::OnDownloadCreated(DownloadManager* manager,
-                                                   DownloadItem* download) {
-  if (download->IsInProgress()) {
-    download_items_.insert(download);
-    download->AddObserver(this);
-  }
-}
-
-void DownloadCompletionObserver::ManagerGoingDown(DownloadManager* manager) {
-  ClearDownloadItems();
-  manager->RemoveObserver(this);
-  delete this;
-}
-
-void DownloadCompletionObserver::OnDownloadUpdated(DownloadItem* download) {
-  switch (download->GetState()) {
-    case DownloadItem::COMPLETE: {
-      if (base::win::IsMetroProcess() &&
-          !download->GetOpenWhenComplete() &&
-          !download->ShouldOpenFileBasedOnExtension() &&
-          !download->IsTemporary() &&
-          !download->GetAutoOpened()) {
-        // In Windows 8 metro mode display a metro style notification which
-        // informs the user that the download is complete.
-        HMODULE metro = base::win::GetMetroModule();
-        base::win::MetroNotification display_notification =
-            reinterpret_cast< base::win::MetroNotification>(
-                ::GetProcAddress(metro, "DisplayNotification"));
-        DCHECK(display_notification);
-        if (display_notification) {
-          string16 title = l10n_util::GetStringUTF16(
-              IDS_METRO_DOWNLOAD_COMPLETE_NOTIFICATION_TITLE);
-          string16 body = l10n_util::GetStringUTF16(
-              IDS_METRO_DOWNLOAD_COMPLETE_NOTIFICATION);
-
-          // Dummy notification id. Every metro style notification needs a
-          // unique notification id.
-          std::string notification_id = kDownloadNotificationPrefix;
-          notification_id += base::IntToString(g_next_notification_id++);
-
-          display_notification(download->GetURL().spec().c_str(),
-                               "",
-                               title.c_str(),
-                               body.c_str(),
-                               L"",
-                               notification_id.c_str());
-        }
-      }
-      DCHECK(ContainsKey(download_items_, download));
-      download_items_.erase(download);
-      download->RemoveObserver(this);
-      break;
-    }
-
-    case DownloadItem::REMOVING:
-    case DownloadItem::INTERRUPTED:
-    case DownloadItem::CANCELLED: {
-      DCHECK(ContainsKey(download_items_, download));
-      download_items_.erase(download);
-      download->RemoveObserver(this);
-      break;
-    }
-
-    default:
-      break;
-  }
-}
-
-void DownloadCompletionObserver::ClearDownloadItems() {
-  for (std::set<DownloadItem*>::iterator it = download_items_.begin();
-       it != download_items_.end(); ++it) {
-    (*it)->RemoveObserver(this);
-  }
-  download_items_.clear();
-}