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
3 // found in the LICENSE file.
7 #include "base/logging.h"
8 #include "base/strings/stringprintf.h"
9 #include "chrome/browser/sync_file_system/file_change.h"
11 namespace sync_file_system {
13 FileChange::FileChange(
15 SyncFileType file_type)
17 file_type_(file_type) {}
19 std::string FileChange::DebugString() const {
20 const char* change_string = NULL;
22 case FILE_CHANGE_ADD_OR_UPDATE:
23 change_string = "ADD_OR_UPDATE";
25 case FILE_CHANGE_DELETE:
26 change_string = "DELETE";
29 const char* type_string = "UNKNOWN";
30 switch (file_type()) {
31 case SYNC_FILE_TYPE_FILE:
34 case SYNC_FILE_TYPE_DIRECTORY:
35 type_string = "DIRECTORY";
37 case SYNC_FILE_TYPE_UNKNOWN:
38 type_string = "UNKNOWN";
41 return base::StringPrintf("%s:%s", change_string, type_string);
44 FileChangeList::FileChangeList() {}
45 FileChangeList::~FileChangeList() {}
47 void FileChangeList::Update(const FileChange& new_change) {
49 list_.push_back(new_change);
53 FileChange& last = list_.back();
54 if (last.IsFile() != new_change.IsFile()) {
55 list_.push_back(new_change);
59 if (last.change() == new_change.change())
62 // ADD + DELETE on directory -> revert
63 if (!last.IsFile() && last.IsAddOrUpdate() && new_change.IsDelete()) {
68 // DELETE + ADD/UPDATE -> ADD/UPDATE
69 // ADD/UPDATE + DELETE -> DELETE
73 FileChangeList FileChangeList::PopAndGetNewList() const {
74 FileChangeList changes;
75 changes.list_ = this->list_;
76 changes.list_.pop_front();
80 std::string FileChangeList::DebugString() const {
81 std::ostringstream ss;
83 for (size_t i = 0; i < list_.size(); ++i)
84 ss << list_[i].DebugString() << ", ";
89 } // namespace sync_file_system