1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CHROME_BROWSER_CHROMEOS_DRIVE_FILE_TASK_EXECUTOR_H_
6#define CHROME_BROWSER_CHROMEOS_DRIVE_FILE_TASK_EXECUTOR_H_
7
8#include <string>
9#include <vector>
10
11#include "base/callback.h"
12#include "base/memory/weak_ptr.h"
13#include "chrome/browser/chromeos/drive/file_errors.h"
14#include "chrome/browser/chromeos/file_manager/file_tasks.h"
15#include "google_apis/drive/gdata_errorcode.h"
16
17namespace drive {
18
19class DriveServiceInterface;
20class FileSystemInterface;
21class ResourceEntry;
22
23// Delegate class for hooking fake instances and behaviors for testing.
24class FileTaskExecutorDelegate {
25 public:
26  virtual ~FileTaskExecutorDelegate() {}
27
28  virtual FileSystemInterface* GetFileSystem() = 0;
29  virtual DriveServiceInterface* GetDriveService() = 0;
30  virtual void OpenBrowserWindow(const GURL& open_link) = 0;
31};
32
33// This class implements an "executor" class that will execute tasks for
34// third party Drive apps that store data in Drive itself.  To do that, it
35// needs to find the file resource IDs and pass them to a server-side function
36// that will authorize the app to open the given document and return a URL
37// for opening the document in that app directly.
38class FileTaskExecutor {
39 public:
40  // Creates FileTaskExecutor with delegate derived from |profile|. Used in
41  // product environment.
42  FileTaskExecutor(Profile* profile, const std::string& app_id);
43
44  // Creates FileTaskExecutor with a specific delegate.
45  FileTaskExecutor(scoped_ptr<FileTaskExecutorDelegate> delegate,
46                   const std::string& app_id);
47
48  // Executes file tasks, runs |done| and deletes |this|.
49  void Execute(const std::vector<storage::FileSystemURL>& file_urls,
50               const file_manager::file_tasks::FileTaskFinishedCallback& done);
51
52 private:
53  ~FileTaskExecutor();
54
55  void OnFileEntryFetched(FileError error, scoped_ptr<ResourceEntry> entry);
56  void OnAppAuthorized(const std::string& resource_id,
57                       google_apis::GDataErrorCode error,
58                       const GURL& open_link);
59
60  // Calls |done_| with |success| status and deletes |this|.
61  void Done(bool success);
62
63  scoped_ptr<FileTaskExecutorDelegate> delegate_;
64  std::string app_id_;
65  int current_index_;
66  file_manager::file_tasks::FileTaskFinishedCallback done_;
67
68  base::WeakPtrFactory<FileTaskExecutor> weak_ptr_factory_;
69};
70
71}  // namespace drive
72
73#endif  // CHROME_BROWSER_CHROMEOS_DRIVE_FILE_TASK_EXECUTOR_H_
74