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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.
#ifndef CHROME_BROWSER_DOWNLOAD_DOWNLOAD_FILE_PICKER_H_
#define CHROME_BROWSER_DOWNLOAD_DOWNLOAD_FILE_PICKER_H_
#include "base/callback.h"
#include "ui/shell_dialogs/select_file_dialog.h"
namespace base {
class FilePath;
}
namespace content {
class DownloadItem;
class DownloadManager;
class WebContents;
}
// Handles showing a dialog to the user to ask for the filename for a download.
class DownloadFilePicker : public ui::SelectFileDialog::Listener {
public:
// Callback used to pass the user selection back to the owner of this
// object.
// |virtual_path|: The path chosen by the user. If the user cancels the file
// selection, then this parameter will be the empty path. On Chrome OS,
// this path may contain virtual mount points if the user chose a virtual
// path (e.g. Google Drive).
typedef base::Callback<void(const base::FilePath& virtual_path)>
FileSelectedCallback;
// 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(content::DownloadItem* item,
const base::FilePath& suggested_path,
const FileSelectedCallback& callback);
private:
DownloadFilePicker(content::DownloadItem* item,
const base::FilePath& suggested_path,
const FileSelectedCallback& callback);
virtual ~DownloadFilePicker();
// Runs |file_selected_callback_| with |virtual_path| and then deletes this
// object.
void OnFileSelected(const base::FilePath& virtual_path);
// SelectFileDialog::Listener implementation.
virtual void FileSelected(const base::FilePath& path,
int index,
void* params) OVERRIDE;
virtual void FileSelectionCanceled(void* params) OVERRIDE;
// Initially suggested path.
base::FilePath suggested_path_;
// Callback invoked when a file selection is complete.
FileSelectedCallback file_selected_callback_;
// For managing select file dialogs.
scoped_refptr<ui::SelectFileDialog> select_file_dialog_;
// True if UMA regarding on the result of the file selection should be
// recorded.
bool should_record_file_picker_result_;
DISALLOW_COPY_AND_ASSIGN(DownloadFilePicker);
};
#endif // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_FILE_PICKER_H_
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