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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_DOWNLOAD_DOWNLOAD_FILE_PICKER_H_
#define CHROME_BROWSER_DOWNLOAD_DOWNLOAD_FILE_PICKER_H_
#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "chrome/browser/download/download_confirmation_result.h"
#include "components/download/public/common/download_item.h"
#include "ui/shell_dialogs/select_file_dialog.h"
#include "ui/shell_dialogs/selected_file_info.h"
namespace base {
class FilePath;
}
// Handles showing a dialog to the user to ask for the filename for a download.
class DownloadFilePicker : public ui::SelectFileDialog::Listener,
public download::DownloadItem::Observer {
public:
// Callback used to pass the user selection back to the owner of this object.
// `selected_file_info` is the file info chosen by the user, or a value with
// an empty path if the user cancels the file selection.
using ConfirmationCallback =
base::OnceCallback<void(DownloadConfirmationResult,
const ui::SelectedFileInfo& selected_file_info)>;
DownloadFilePicker(const DownloadFilePicker&) = delete;
DownloadFilePicker& operator=(const DownloadFilePicker&) = delete;
// Display a file picker dialog for `item`. The `suggested_path` will be used
// as the initial path displayed to the user. `callback` will always be
// invoked even if `item` is destroyed prior to the file picker completing.
static void ShowFilePicker(download::DownloadItem* item,
const base::FilePath& suggested_path,
ConfirmationCallback callback);
private:
DownloadFilePicker(download::DownloadItem* item,
const base::FilePath& suggested_path,
ConfirmationCallback callback);
~DownloadFilePicker() override;
// SelectFileDialog::Listener implementation.
void FileSelected(const ui::SelectedFileInfo& file, int index) override;
void FileSelectionCanceled() override;
// DownloadItem::Observer
void OnDownloadDestroyed(download::DownloadItem* download) override;
// Initially suggested path.
base::FilePath suggested_path_;
// Callback invoked when a file selection is complete.
ConfirmationCallback file_selected_callback_;
// For managing select file dialogs.
scoped_refptr<ui::SelectFileDialog> select_file_dialog_;
// The item to be downloaded.
raw_ptr<download::DownloadItem> download_item_;
};
#endif // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_FILE_PICKER_H_
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