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Side by Side Diff: chrome/browser/extensions/api/file_handlers/mime_util.h

Issue 442383002: Move storage-related files from webkit/ to new top-level directory storage/ (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: . Created 6 years, 4 months ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved. 1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 // 4 //
5 // This file provides MIME related utilities. 5 // This file provides MIME related utilities.
6 6
7 #ifndef CHROME_BROWSER_EXTENSIONS_API_FILE_HANDLERS_MIME_UTIL_H_ 7 #ifndef CHROME_BROWSER_EXTENSIONS_API_FILE_HANDLERS_MIME_UTIL_H_
8 #define CHROME_BROWSER_EXTENSIONS_API_FILE_HANDLERS_MIME_UTIL_H_ 8 #define CHROME_BROWSER_EXTENSIONS_API_FILE_HANDLERS_MIME_UTIL_H_
9 9
10 #include <string> 10 #include <string>
11 #include <vector> 11 #include <vector>
12 12
13 #include "base/callback.h" 13 #include "base/callback.h"
14 #include "base/memory/scoped_ptr.h" 14 #include "base/memory/scoped_ptr.h"
15 #include "base/memory/weak_ptr.h" 15 #include "base/memory/weak_ptr.h"
16 16
17 class Profile; 17 class Profile;
18 18
19 namespace base { 19 namespace base {
20 class FilePath; 20 class FilePath;
21 } // namespace base 21 } // namespace base
22 22
23 namespace fileapi { 23 namespace storage {
24 class FileSystemURL; 24 class FileSystemURL;
25 } // namespace fileapi 25 } // namespace storage
26 26
27 namespace extensions { 27 namespace extensions {
28 namespace app_file_handler_util { 28 namespace app_file_handler_util {
29 29
30 // Gets a MIME type for a local path and returns it with |callback|. If not 30 // Gets a MIME type for a local path and returns it with |callback|. If not
31 // found, then the MIME type is an empty string. 31 // found, then the MIME type is an empty string.
32 void GetMimeTypeForLocalPath( 32 void GetMimeTypeForLocalPath(
33 Profile* profile, 33 Profile* profile,
34 const base::FilePath& local_path, 34 const base::FilePath& local_path,
35 const base::Callback<void(const std::string&)>& callback); 35 const base::Callback<void(const std::string&)>& callback);
36 36
37 // Collects MIME types for files passed in the input vector. For non-native 37 // Collects MIME types for files passed in the input vector. For non-native
38 // file systems tries to fetch the MIME type from metadata. For native ones, 38 // file systems tries to fetch the MIME type from metadata. For native ones,
39 // tries to sniff or guess by looking at the extension. If MIME type is not 39 // tries to sniff or guess by looking at the extension. If MIME type is not
40 // available, then an empty string is returned in the result vector. 40 // available, then an empty string is returned in the result vector.
41 class MimeTypeCollector { 41 class MimeTypeCollector {
42 public: 42 public:
43 typedef base::Callback<void(scoped_ptr<std::vector<std::string> >)> 43 typedef base::Callback<void(scoped_ptr<std::vector<std::string> >)>
44 CompletionCallback; 44 CompletionCallback;
45 45
46 explicit MimeTypeCollector(Profile* profile); 46 explicit MimeTypeCollector(Profile* profile);
47 virtual ~MimeTypeCollector(); 47 virtual ~MimeTypeCollector();
48 48
49 // Collects all mime types asynchronously for a vector of URLs and upon 49 // Collects all mime types asynchronously for a vector of URLs and upon
50 // completion, calls the |callback|. It can be called only once. 50 // completion, calls the |callback|. It can be called only once.
51 void CollectForURLs(const std::vector<fileapi::FileSystemURL>& urls, 51 void CollectForURLs(const std::vector<storage::FileSystemURL>& urls,
52 const CompletionCallback& callback); 52 const CompletionCallback& callback);
53 53
54 // Collects all mime types asynchronously for a vector of local file paths and 54 // Collects all mime types asynchronously for a vector of local file paths and
55 // upon completion, calls the |callback|. It can be called only once. 55 // upon completion, calls the |callback|. It can be called only once.
56 void CollectForLocalPaths(const std::vector<base::FilePath>& local_paths, 56 void CollectForLocalPaths(const std::vector<base::FilePath>& local_paths,
57 const CompletionCallback& callback); 57 const CompletionCallback& callback);
58 58
59 private: 59 private:
60 // Called, when the |index|-th input file (or URL) got processed. 60 // Called, when the |index|-th input file (or URL) got processed.
61 void OnMimeTypeCollected(size_t index, const std::string& mime_type); 61 void OnMimeTypeCollected(size_t index, const std::string& mime_type);
62 62
63 Profile* profile_; 63 Profile* profile_;
64 scoped_ptr<std::vector<std::string> > result_; 64 scoped_ptr<std::vector<std::string> > result_;
65 size_t left_; 65 size_t left_;
66 CompletionCallback callback_; 66 CompletionCallback callback_;
67 base::WeakPtrFactory<MimeTypeCollector> weak_ptr_factory_; 67 base::WeakPtrFactory<MimeTypeCollector> weak_ptr_factory_;
68 68
69 DISALLOW_COPY_AND_ASSIGN(MimeTypeCollector); 69 DISALLOW_COPY_AND_ASSIGN(MimeTypeCollector);
70 }; 70 };
71 71
72 } // namespace app_file_handler_util 72 } // namespace app_file_handler_util
73 } // namespace extensions 73 } // namespace extensions
74 74
75 #endif // CHROME_BROWSER_EXTENSIONS_API_FILE_HANDLERS_MIME_UTIL_H_ 75 #endif // CHROME_BROWSER_EXTENSIONS_API_FILE_HANDLERS_MIME_UTIL_H_
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