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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/chromeos/file_manager/zip_file_creator.h"
#include "base/bind.h"
#include "base/callback_helpers.h"
#include "base/message_loop/message_loop.h"
#include "base/threading/sequenced_worker_pool.h"
#include "chrome/common/chrome_utility_messages.h"
#include "chrome/grit/generated_resources.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/utility_process_host.h"
#include "ui/base/l10n/l10n_util.h"
using content::BrowserThread;
using content::UtilityProcessHost;
namespace {
// Creates the destination zip file only if it does not already exist.
base::File OpenFileHandleOnBlockingThreadPool(const base::FilePath& zip_path) {
return base::File(zip_path, base::File::FLAG_CREATE | base::File::FLAG_WRITE);
}
} // namespace
namespace file_manager {
ZipFileCreator::ZipFileCreator(
const ResultCallback& callback,
const base::FilePath& src_dir,
const std::vector<base::FilePath>& src_relative_paths,
const base::FilePath& dest_file)
: callback_(callback),
src_dir_(src_dir),
src_relative_paths_(src_relative_paths),
dest_file_(dest_file) {
DCHECK(!callback_.is_null());
}
void ZipFileCreator::Start() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
base::PostTaskAndReplyWithResult(
BrowserThread::GetBlockingPool(),
FROM_HERE,
base::Bind(&OpenFileHandleOnBlockingThreadPool, dest_file_),
base::Bind(&ZipFileCreator::OnOpenFileHandle, this));
}
ZipFileCreator::~ZipFileCreator() {
}
bool ZipFileCreator::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(ZipFileCreator, message)
IPC_MESSAGE_HANDLER(ChromeUtilityHostMsg_CreateZipFile_Succeeded,
OnCreateZipFileSucceeded)
IPC_MESSAGE_HANDLER(ChromeUtilityHostMsg_CreateZipFile_Failed,
OnCreateZipFileFailed)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void ZipFileCreator::OnProcessCrashed(int exit_code) {
ReportDone(false);
}
void ZipFileCreator::OnOpenFileHandle(base::File file) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
if (!file.IsValid()) {
LOG(ERROR) << "Failed to create dest zip file " << dest_file_.value();
ReportDone(false);
return;
}
BrowserThread::PostTask(
BrowserThread::IO,
FROM_HERE,
base::Bind(
&ZipFileCreator::StartProcessOnIOThread, this, base::Passed(&file)));
}
void ZipFileCreator::StartProcessOnIOThread(base::File dest_file) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
base::FileDescriptor dest_fd(dest_file.Pass());
UtilityProcessHost* host = UtilityProcessHost::Create(
this,
BrowserThread::GetMessageLoopProxyForThread(BrowserThread::UI).get());
host->SetName(
l10n_util::GetStringUTF16(IDS_UTILITY_PROCESS_ZIP_FILE_CREATOR_NAME));
host->SetExposedDir(src_dir_);
host->Send(new ChromeUtilityMsg_CreateZipFile(src_dir_, src_relative_paths_,
dest_fd));
}
void ZipFileCreator::OnCreateZipFileSucceeded() {
ReportDone(true);
}
void ZipFileCreator::OnCreateZipFileFailed() {
ReportDone(false);
}
void ZipFileCreator::ReportDone(bool success) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
// Guard against calling observer multiple times.
if (!callback_.is_null())
base::ResetAndReturn(&callback_).Run(success);
}
} // namespace file_manager
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