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// 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_status_updater.h"
#include <shobjidl.h>
#include <string>
#include "base/logging.h"
#include "base/win/scoped_comptr.h"
#include "base/win/windows_version.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_iterator.h"
#include "chrome/browser/ui/browser_window.h"
#include "ui/views/win/hwnd_util.h"
namespace {
void UpdateTaskbarProgressBar(int download_count,
bool progress_known,
float progress) {
// Taskbar progress bar is only supported on Win7.
if (base::win::GetVersion() < base::win::VERSION_WIN7)
return;
base::win::ScopedComPtr<ITaskbarList3> taskbar;
HRESULT result = taskbar.CreateInstance(CLSID_TaskbarList, NULL,
CLSCTX_INPROC_SERVER);
if (FAILED(result)) {
DVLOG(1) << "Failed creating a TaskbarList object: " << result;
return;
}
result = taskbar->HrInit();
if (FAILED(result)) {
LOG(ERROR) << "Failed initializing an ITaskbarList3 interface.";
return;
}
// Iterate through all the browser windows, and draw the progress bar.
for (chrome::BrowserIterator it; !it.done(); it.Next()) {
Browser* browser = *it;
BrowserWindow* window = browser->window();
if (!window)
continue;
HWND frame = views::HWNDForNativeWindow(window->GetNativeWindow());
if (download_count == 0 || progress == 1.0f)
taskbar->SetProgressState(frame, TBPF_NOPROGRESS);
else if (!progress_known)
taskbar->SetProgressState(frame, TBPF_INDETERMINATE);
else
taskbar->SetProgressValue(frame, static_cast<int>(progress * 100), 100);
}
}
} // namespace
void DownloadStatusUpdater::UpdateAppIconDownloadProgress(
content::DownloadItem* download) {
// Always update overall progress.
float progress = 0;
int download_count = 0;
bool progress_known = GetProgress(&progress, &download_count);
UpdateTaskbarProgressBar(download_count, progress_known, progress);
}
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