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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/win/chrome_select_file_dialog_factory.h"
#include <utility>
#include <vector>
#include "base/feature_list.h"
#include "base/functional/bind.h"
#include "base/strings/utf_string_conversions.h"
#include "base/win/win_util.h"
#include "chrome/browser/win/util_win_service.h"
#include "chrome/services/util_win/public/mojom/util_win.mojom.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "mojo/public/cpp/bindings/sync_call_restrictions.h"
#include "ui/shell_dialogs/execute_select_file_win.h"
#include "ui/shell_dialogs/select_file_dialog_win.h"
#include "ui/shell_dialogs/select_file_policy.h"
// Helper class to execute a select file operation on a utility process. It
// hides the complexity of managing the lifetime of the connection to the
// UtilWin service.
class UtilWinHelper {
public:
UtilWinHelper(const UtilWinHelper&) = delete;
UtilWinHelper& operator=(const UtilWinHelper&) = delete;
// Executes the select file operation and returns the result via
// |on_select_file_executed_callback|.
static void ExecuteSelectFile(
ui::SelectFileDialog::Type type,
const std::u16string& title,
const base::FilePath& default_path,
const std::vector<ui::FileFilterSpec>& filter,
int file_type_index,
const std::wstring& default_extension,
HWND owner,
ui::OnSelectFileExecutedCallback on_select_file_executed_callback);
private:
UtilWinHelper(
ui::SelectFileDialog::Type type,
const std::u16string& title,
const base::FilePath& default_path,
const std::vector<ui::FileFilterSpec>& filter,
int file_type_index,
const std::wstring& default_extension,
HWND owner,
ui::OnSelectFileExecutedCallback on_select_file_executed_callback);
// Connection error handler for the interface pipe.
void OnConnectionError();
// Forwards the result of the file operation to the
// |on_select_file_executed_callback_|.
void OnSelectFileExecuted(const std::vector<base::FilePath>& paths,
int index);
// The pointer to the UtilWin interface. This must be kept alive while waiting
// for the response.
mojo::Remote<chrome::mojom::UtilWin> remote_util_win_;
// The callback that is invoked when the file operation is finished.
ui::OnSelectFileExecutedCallback on_select_file_executed_callback_;
SEQUENCE_CHECKER(sequence_checker_);
};
// static
void UtilWinHelper::ExecuteSelectFile(
ui::SelectFileDialog::Type type,
const std::u16string& title,
const base::FilePath& default_path,
const std::vector<ui::FileFilterSpec>& filter,
int file_type_index,
const std::wstring& default_extension,
HWND owner,
ui::OnSelectFileExecutedCallback on_select_file_executed_callback) {
// Self-deleting when the select file operation completes.
new UtilWinHelper(type, title, default_path, filter, file_type_index,
default_extension, owner,
std::move(on_select_file_executed_callback));
}
UtilWinHelper::UtilWinHelper(
ui::SelectFileDialog::Type type,
const std::u16string& title,
const base::FilePath& default_path,
const std::vector<ui::FileFilterSpec>& filter,
int file_type_index,
const std::wstring& default_extension,
HWND owner,
ui::OnSelectFileExecutedCallback on_select_file_executed_callback)
: on_select_file_executed_callback_(
std::move(on_select_file_executed_callback)) {
remote_util_win_ = LaunchUtilWinServiceInstance();
// |remote_util_win_| owns the callbacks and is guaranteed to be destroyed
// before |this|, therefore making base::Unretained() safe to use.
remote_util_win_.set_disconnect_handler(base::BindOnce(
&UtilWinHelper::OnConnectionError, base::Unretained(this)));
remote_util_win_->CallExecuteSelectFile(
type, base::win::HandleToUint32(owner), title, default_path, filter,
file_type_index, base::WideToUTF16(default_extension),
base::BindOnce(&UtilWinHelper::OnSelectFileExecuted,
base::Unretained(this)));
}
void UtilWinHelper::OnConnectionError() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
std::move(on_select_file_executed_callback_).Run({}, 0);
delete this;
}
void UtilWinHelper::OnSelectFileExecuted(
const std::vector<base::FilePath>& paths,
int index) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
std::move(on_select_file_executed_callback_).Run(paths, index);
delete this;
}
void ExecuteSelectFileImpl(
ui::SelectFileDialog::Type type,
const std::u16string& title,
const base::FilePath& default_path,
const std::vector<ui::FileFilterSpec>& filter,
int file_type_index,
const std::wstring& default_extension,
HWND owner,
ui::OnSelectFileExecutedCallback on_select_file_executed_callback) {
UtilWinHelper::ExecuteSelectFile(type, title, default_path, filter,
file_type_index, default_extension, owner,
std::move(on_select_file_executed_callback));
}
ChromeSelectFileDialogFactory::ChromeSelectFileDialogFactory() = default;
ChromeSelectFileDialogFactory::~ChromeSelectFileDialogFactory() = default;
ui::SelectFileDialog* ChromeSelectFileDialogFactory::Create(
ui::SelectFileDialog::Listener* listener,
std::unique_ptr<ui::SelectFilePolicy> policy) {
return ui::CreateWinSelectFileDialog(
listener, std::move(policy), base::BindRepeating(&ExecuteSelectFileImpl));
}
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