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| author | kinuko@chromium.org <kinuko@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-05-21 08:26:36 +0000 |
|---|---|---|
| committer | kinuko@chromium.org <kinuko@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-05-21 08:26:36 +0000 |
| commit | 20c2df688030ad6ef485df9a5da4e889b2e477c4 (patch) | |
| tree | 8a940a5c26090972b058778d8486c6461e842f1f /webkit/browser/fileapi/recursive_operation_delegate.h | |
| parent | 03393a9a5d76c7009ee996083c727bcdc47c74aa (diff) | |
| download | chromium_src-20c2df688030ad6ef485df9a5da4e889b2e477c4.zip chromium_src-20c2df688030ad6ef485df9a5da4e889b2e477c4.tar.gz chromium_src-20c2df688030ad6ef485df9a5da4e889b2e477c4.tar.bz2 | |
Move browser-specific FileAPI code from webkit/fileapi to webkit/browser/fileapi
This moves following files from webkit/fileapi to webkit/browser/fileapi:
- copy_or_move_file_validator*
- cross_operation_delegate*
- file_system_quota_client*
- recursive_operation_delegate*
BUG=239710
TBR=tzik@chromium.org
Review URL: https://codereview.chromium.org/15535006
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@201258 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'webkit/browser/fileapi/recursive_operation_delegate.h')
| -rw-r--r-- | webkit/browser/fileapi/recursive_operation_delegate.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/webkit/browser/fileapi/recursive_operation_delegate.h b/webkit/browser/fileapi/recursive_operation_delegate.h new file mode 100644 index 0000000..23e0735 --- /dev/null +++ b/webkit/browser/fileapi/recursive_operation_delegate.h @@ -0,0 +1,103 @@ +// Copyright (c) 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef WEBKIT_BROWSER_FILEAPI_RECURSIVE_OPERATION_DELEGATE_H_ +#define WEBKIT_BROWSER_FILEAPI_RECURSIVE_OPERATION_DELEGATE_H_ + +#include <queue> + +#include "base/basictypes.h" +#include "base/callback.h" +#include "base/memory/weak_ptr.h" +#include "webkit/fileapi/file_system_operation.h" +#include "webkit/fileapi/file_system_url.h" + +namespace fileapi { + +class FileSystemContext; + +// A base class for recursive operation delegates. +// This also provides some convenient default implementations for subclasses +// like StartRecursiveOperation() and NewNestedOperation(). +// +// In short, each subclass should override ProcessFile and ProcessDirectory +// to process a directory or a file. To start the recursive operation it +// should also call StartRecursiveOperation. +// +// Each subclass can call NewNestedOperation to create a new file system +// operation to perform a sub-operations, e.g. can call RemoveFile for +// recursive Remove. +class RecursiveOperationDelegate + : public base::SupportsWeakPtr<RecursiveOperationDelegate> { + public: + typedef FileSystemOperation::StatusCallback StatusCallback; + typedef FileSystemOperation::FileEntryList FileEntryList; + + RecursiveOperationDelegate(FileSystemContext* file_system_context, + LocalFileSystemOperation* operation); + virtual ~RecursiveOperationDelegate(); + + // This is called when the consumer of this instance starts a non-recursive + // operation. + virtual void Run() = 0; + + // This is called when the consumer of this instance starts a recursive + // operation. + virtual void RunRecursively() = 0; + + // This is called each time a file is found while recursively + // performing an operation. + virtual void ProcessFile(const FileSystemURL& url, + const StatusCallback& callback) = 0; + + // This is called each time a directory is found while recursively + // performing an operation. + virtual void ProcessDirectory(const FileSystemURL& url, + const StatusCallback& callback) = 0; + + protected: + // Starts to process files/directories recursively from the given |root|. + // This will call ProcessFile and ProcessDirectory on each directory or file. + // If the given |root| is a file this simply calls ProcessFile and exits. + // + // |callback| is fired with base::PLATFORM_FILE_OK when every file/directory + // under |root| is processed, or fired earlier when any suboperation fails. + void StartRecursiveOperation(const FileSystemURL& root, + const StatusCallback& callback); + + // Returns new nested sub-operation. + LocalFileSystemOperation* NewNestedOperation(); + + FileSystemContext* file_system_context() { return file_system_context_; } + const FileSystemContext* file_system_context() const { + return file_system_context_; + } + + private: + void ProcessNextDirectory(); + void ProcessPendingFiles(); + void DidProcessFile(base::PlatformFileError error); + void DidProcessDirectory(const FileSystemURL& url, + base::PlatformFileError error); + void DidReadDirectory( + const FileSystemURL& parent, + base::PlatformFileError error, + const FileEntryList& entries, + bool has_more); + void DidTryProcessFile(base::PlatformFileError previous_error, + base::PlatformFileError error); + + FileSystemContext* file_system_context_; + LocalFileSystemOperation* operation_; + StatusCallback callback_; + std::queue<FileSystemURL> pending_directories_; + std::queue<FileSystemURL> pending_files_; + int inflight_operations_; + + DISALLOW_COPY_AND_ASSIGN(RecursiveOperationDelegate); +}; + +} // namespace fileapi + +#endif // WEBKIT_BROWSER_FILEAPI_RECURSIVE_OPERATION_DELEGATE_H_ |