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Side by Side Diff: storage/browser/fileapi/recursive_operation_delegate.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 (c) 2013 The Chromium Authors. All rights reserved. 1 // Copyright (c) 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 #ifndef WEBKIT_BROWSER_FILEAPI_RECURSIVE_OPERATION_DELEGATE_H_ 5 #ifndef WEBKIT_BROWSER_FILEAPI_RECURSIVE_OPERATION_DELEGATE_H_
6 #define WEBKIT_BROWSER_FILEAPI_RECURSIVE_OPERATION_DELEGATE_H_ 6 #define WEBKIT_BROWSER_FILEAPI_RECURSIVE_OPERATION_DELEGATE_H_
7 7
8 #include <queue> 8 #include <queue>
9 #include <stack> 9 #include <stack>
10 10
11 #include "base/basictypes.h" 11 #include "base/basictypes.h"
12 #include "base/callback.h" 12 #include "base/callback.h"
13 #include "base/memory/weak_ptr.h" 13 #include "base/memory/weak_ptr.h"
14 #include "webkit/browser/fileapi/file_system_operation.h" 14 #include "storage/browser/fileapi/file_system_operation.h"
15 #include "webkit/browser/fileapi/file_system_url.h" 15 #include "storage/browser/fileapi/file_system_url.h"
16 16
17 namespace fileapi { 17 namespace storage {
18 18
19 class FileSystemContext; 19 class FileSystemContext;
20 class FileSystemOperationRunner; 20 class FileSystemOperationRunner;
21 21
22 // A base class for recursive operation delegates. 22 // A base class for recursive operation delegates.
23 // 23 //
24 // In short, each subclass should override ProcessFile and ProcessDirectory 24 // In short, each subclass should override ProcessFile and ProcessDirectory
25 // to process a directory or a file. To start the recursive operation it 25 // to process a directory or a file. To start the recursive operation it
26 // should also call StartRecursiveOperation. 26 // should also call StartRecursiveOperation.
27 class WEBKIT_STORAGE_BROWSER_EXPORT RecursiveOperationDelegate 27 class STORAGE_EXPORT RecursiveOperationDelegate
28 : public base::SupportsWeakPtr<RecursiveOperationDelegate> { 28 : public base::SupportsWeakPtr<RecursiveOperationDelegate> {
29 public: 29 public:
30 typedef FileSystemOperation::StatusCallback StatusCallback; 30 typedef FileSystemOperation::StatusCallback StatusCallback;
31 typedef FileSystemOperation::FileEntryList FileEntryList; 31 typedef FileSystemOperation::FileEntryList FileEntryList;
32 32
33 virtual ~RecursiveOperationDelegate(); 33 virtual ~RecursiveOperationDelegate();
34 34
35 // This is called when the consumer of this instance starts a non-recursive 35 // This is called when the consumer of this instance starts a non-recursive
36 // operation. 36 // operation.
37 virtual void Run() = 0; 37 virtual void Run() = 0;
38 38
39 // This is called when the consumer of this instance starts a recursive 39 // This is called when the consumer of this instance starts a recursive
40 // operation. 40 // operation.
41 virtual void RunRecursively() = 0; 41 virtual void RunRecursively() = 0;
42 42
43 // This is called each time a file is found while recursively 43 // This is called each time a file is found while recursively
44 // performing an operation. 44 // performing an operation.
45 virtual void ProcessFile(const FileSystemURL& url, 45 virtual void ProcessFile(const FileSystemURL& url,
46 const StatusCallback& callback) = 0; 46 const StatusCallback& callback) = 0;
47 47
48 // This is called each time a directory is found while recursively 48 // This is called each time a directory is found while recursively
49 // performing an operation. 49 // performing an operation.
50 virtual void ProcessDirectory(const FileSystemURL& url, 50 virtual void ProcessDirectory(const FileSystemURL& url,
51 const StatusCallback& callback) = 0; 51 const StatusCallback& callback) = 0;
52 52
53
54 // This is called each time after files and subdirectories for a 53 // This is called each time after files and subdirectories for a
55 // directory is processed while recursively performing an operation. 54 // directory is processed while recursively performing an operation.
56 virtual void PostProcessDirectory(const FileSystemURL& url, 55 virtual void PostProcessDirectory(const FileSystemURL& url,
57 const StatusCallback& callback) = 0; 56 const StatusCallback& callback) = 0;
58 57
59 // Cancels the currently running operation. 58 // Cancels the currently running operation.
60 void Cancel(); 59 void Cancel();
61 60
62 protected: 61 protected:
63 explicit RecursiveOperationDelegate(FileSystemContext* file_system_context); 62 explicit RecursiveOperationDelegate(FileSystemContext* file_system_context);
(...skipping 49 matching lines...) Expand 10 before | Expand all | Expand 10 after
113 return file_system_context_; 112 return file_system_context_;
114 } 113 }
115 114
116 FileSystemOperationRunner* operation_runner(); 115 FileSystemOperationRunner* operation_runner();
117 116
118 // Called when Cancel() is called. This is a hook to do something more 117 // Called when Cancel() is called. This is a hook to do something more
119 // in a derived class. By default, do nothing. 118 // in a derived class. By default, do nothing.
120 virtual void OnCancel(); 119 virtual void OnCancel();
121 120
122 private: 121 private:
123 void DidTryProcessFile(const FileSystemURL& root, 122 void DidTryProcessFile(const FileSystemURL& root, base::File::Error error);
124 base::File::Error error);
125 void ProcessNextDirectory(); 123 void ProcessNextDirectory();
126 void DidProcessDirectory(base::File::Error error); 124 void DidProcessDirectory(base::File::Error error);
127 void DidReadDirectory(const FileSystemURL& parent, 125 void DidReadDirectory(const FileSystemURL& parent,
128 base::File::Error error, 126 base::File::Error error,
129 const FileEntryList& entries, 127 const FileEntryList& entries,
130 bool has_more); 128 bool has_more);
131 void ProcessPendingFiles(); 129 void ProcessPendingFiles();
132 void DidProcessFile(base::File::Error error); 130 void DidProcessFile(base::File::Error error);
133 void ProcessSubDirectory(); 131 void ProcessSubDirectory();
134 void DidPostProcessDirectory(base::File::Error error); 132 void DidPostProcessDirectory(base::File::Error error);
135 133
136 // Called when all recursive operation is done (or an error occurs). 134 // Called when all recursive operation is done (or an error occurs).
137 void Done(base::File::Error error); 135 void Done(base::File::Error error);
138 136
139 FileSystemContext* file_system_context_; 137 FileSystemContext* file_system_context_;
140 StatusCallback callback_; 138 StatusCallback callback_;
141 std::stack<FileSystemURL> pending_directories_; 139 std::stack<FileSystemURL> pending_directories_;
142 std::stack<std::queue<FileSystemURL> > pending_directory_stack_; 140 std::stack<std::queue<FileSystemURL> > pending_directory_stack_;
143 std::queue<FileSystemURL> pending_files_; 141 std::queue<FileSystemURL> pending_files_;
144 int inflight_operations_; 142 int inflight_operations_;
145 bool canceled_; 143 bool canceled_;
146 144
147 DISALLOW_COPY_AND_ASSIGN(RecursiveOperationDelegate); 145 DISALLOW_COPY_AND_ASSIGN(RecursiveOperationDelegate);
148 }; 146 };
149 147
150 } // namespace fileapi 148 } // namespace storage
151 149
152 #endif // WEBKIT_BROWSER_FILEAPI_RECURSIVE_OPERATION_DELEGATE_H_ 150 #endif // WEBKIT_BROWSER_FILEAPI_RECURSIVE_OPERATION_DELEGATE_H_
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