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Side by Side Diff: storage/browser/fileapi/recursive_operation_delegate.h

Issue 1194783002: Add fileManagerPrivate.onCopyError event. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Remove const and rename enum. Created 5 years, 6 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 STORAGE_BROWSER_FILEAPI_RECURSIVE_OPERATION_DELEGATE_H_ 5 #ifndef STORAGE_BROWSER_FILEAPI_RECURSIVE_OPERATION_DELEGATE_H_
6 #define STORAGE_BROWSER_FILEAPI_RECURSIVE_OPERATION_DELEGATE_H_ 6 #define STORAGE_BROWSER_FILEAPI_RECURSIVE_OPERATION_DELEGATE_H_
7 7
8 #include <queue> 8 #include <queue>
9 #include <stack> 9 #include <stack>
10 10
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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 STORAGE_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::ErrorCallback ErrorCallback;
32 typedef FileSystemOperation::FileEntryList FileEntryList; 31 typedef FileSystemOperation::FileEntryList FileEntryList;
32 typedef FileSystemOperation::ErrorBehavior ErrorBehavior;
33 33
34 virtual ~RecursiveOperationDelegate(); 34 virtual ~RecursiveOperationDelegate();
35 35
36 // This is called when the consumer of this instance starts a non-recursive 36 // This is called when the consumer of this instance starts a non-recursive
37 // operation. 37 // operation.
38 virtual void Run() = 0; 38 virtual void Run() = 0;
39 39
40 // This is called when the consumer of this instance starts a recursive 40 // This is called when the consumer of this instance starts a recursive
41 // operation. 41 // operation.
42 virtual void RunRecursively() = 0; 42 virtual void RunRecursively() = 0;
(...skipping 54 matching lines...) Expand 10 before | Expand all | Expand 10 after
97 // ProcessDirectory(c1_dir). 97 // ProcessDirectory(c1_dir).
98 // ProcessFile(d1_file), ProcessFile(d2_file). (in parallel). 98 // ProcessFile(d1_file), ProcessFile(d2_file). (in parallel).
99 // PostProcessDirectory(c1_dir) 99 // PostProcessDirectory(c1_dir)
100 // PostProcessDirectory(b1_dir). 100 // PostProcessDirectory(b1_dir).
101 // ProcessDirectory(b2_dir) 101 // ProcessDirectory(b2_dir)
102 // ProcessDirectory(e_dir) 102 // ProcessDirectory(e_dir)
103 // PostProcessDirectory(e_dir) 103 // PostProcessDirectory(e_dir)
104 // PostProcessDirectory(b2_dir) 104 // PostProcessDirectory(b2_dir)
105 // PostProcessDirectory(a_dir) 105 // PostProcessDirectory(a_dir)
106 // 106 //
107 // |error_behavior| is to specify how this behaves when an operation have
108 // failed.
107 // |callback| is fired with base::File::FILE_OK when every file/directory 109 // |callback| is fired with base::File::FILE_OK when every file/directory
108 // under |root| is processed, or fired earlier when any suboperation fails. 110 // under |root| is processed, or fired earlier when any suboperation fails.
109 void StartRecursiveOperation(const FileSystemURL& root, 111 void StartRecursiveOperation(const FileSystemURL& root,
112 ErrorBehavior error_behavior,
110 const StatusCallback& callback); 113 const StatusCallback& callback);
111 114
112 // Starts to process files/directories recursively from the given |root|.
113 // Compared with StartRecursiveOperation, this continues operation with
114 // ignoring erros of ProcessFile.
115 //
116 // |error_callback| is fired when a ProcessFile has failed in the middle of
117 // operations. If some errors had happened, |status_callback| is fired with
118 // base::File::FILE_ERROR_FAILED at the end.
119 //
120 // TODO(yawano): Handle errors of ProcessDirectory as well.
121 void StartRecursiveOperationWithIgnoringError(
122 const FileSystemURL& root,
123 const ErrorCallback& error_callback,
124 const StatusCallback& status_callback);
125
126 FileSystemContext* file_system_context() { return file_system_context_; } 115 FileSystemContext* file_system_context() { return file_system_context_; }
127 const FileSystemContext* file_system_context() const { 116 const FileSystemContext* file_system_context() const {
128 return file_system_context_; 117 return file_system_context_;
129 } 118 }
130 119
131 FileSystemOperationRunner* operation_runner(); 120 FileSystemOperationRunner* operation_runner();
132 121
133 // Called when Cancel() is called. This is a hook to do something more 122 // Called when Cancel() is called. This is a hook to do something more
134 // in a derived class. By default, do nothing. 123 // in a derived class. By default, do nothing.
135 virtual void OnCancel(); 124 virtual void OnCancel();
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147 void ProcessPendingFiles(); 136 void ProcessPendingFiles();
148 void DidProcessFile(const FileSystemURL& url, base::File::Error error); 137 void DidProcessFile(const FileSystemURL& url, base::File::Error error);
149 void ProcessSubDirectory(); 138 void ProcessSubDirectory();
150 void DidPostProcessDirectory(base::File::Error error); 139 void DidPostProcessDirectory(base::File::Error error);
151 140
152 // Called when all recursive operation is done (or an error occurs). 141 // Called when all recursive operation is done (or an error occurs).
153 void Done(base::File::Error error); 142 void Done(base::File::Error error);
154 143
155 FileSystemContext* file_system_context_; 144 FileSystemContext* file_system_context_;
156 StatusCallback callback_; 145 StatusCallback callback_;
157 ErrorCallback error_callback_;
158 std::stack<FileSystemURL> pending_directories_; 146 std::stack<FileSystemURL> pending_directories_;
159 std::stack<std::queue<FileSystemURL> > pending_directory_stack_; 147 std::stack<std::queue<FileSystemURL> > pending_directory_stack_;
160 std::queue<FileSystemURL> pending_files_; 148 std::queue<FileSystemURL> pending_files_;
161 int inflight_operations_; 149 int inflight_operations_;
162 bool canceled_; 150 bool canceled_;
163 bool ignore_error_; 151 ErrorBehavior error_behavior_;
164 bool failed_some_operations_; 152 bool failed_some_operations_;
165 153
166 DISALLOW_COPY_AND_ASSIGN(RecursiveOperationDelegate); 154 DISALLOW_COPY_AND_ASSIGN(RecursiveOperationDelegate);
167 }; 155 };
168 156
169 } // namespace storage 157 } // namespace storage
170 158
171 #endif // STORAGE_BROWSER_FILEAPI_RECURSIVE_OPERATION_DELEGATE_H_ 159 #endif // STORAGE_BROWSER_FILEAPI_RECURSIVE_OPERATION_DELEGATE_H_
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