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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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